merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

40 files changed, 1914 insertions, 935 deletions

diff --git a/third_party/git/contrib/buildsystems/CMakeLists.txt b/third_party/git/contrib/buildsystems/CMakeLists.txt
new file mode 100644
index 000000000000..df539a44fa0a
--- /dev/null
+++ b/third_party/git/contrib/buildsystems/CMakeLists.txt
@@ -0,0 +1,988 @@
+#
+#	Copyright (c) 2020 Sibi Siddharthan
+#
+
+#[[
+
+Instructions how to use this in Visual Studio:
+
+Open the worktree as a folder. Visual Studio 2019 and later will detect
+the CMake configuration automatically and set everything up for you,
+ready to build. You can then run the tests in `t/` via a regular Git Bash.
+
+Note: Visual Studio also has the option of opening `CMakeLists.txt`
+directly; Using this option, Visual Studio will not find the source code,
+though, therefore the `File>Open>Folder...` option is preferred.
+
+Instructions to run CMake manually:
+
+    mkdir -p contrib/buildsystems/out
+    cd contrib/buildsystems/out
+    cmake ../ -DCMAKE_BUILD_TYPE=Release
+
+This will build the git binaries in contrib/buildsystems/out
+directory (our top-level .gitignore file knows to ignore contents of
+this directory).
+
+Possible build configurations(-DCMAKE_BUILD_TYPE) with corresponding
+compiler flags
+Debug : -g
+Release: -O3
+RelWithDebInfo : -O2 -g
+MinSizeRel : -Os
+empty(default) :
+
+NOTE: -DCMAKE_BUILD_TYPE is optional. For multi-config generators like Visual Studio
+this option is ignored
+
+This process generates a Makefile(Linux/*BSD/MacOS) , Visual Studio solution(Windows) by default.
+Run `make` to build Git on Linux/*BSD/MacOS.
+Open git.sln on Windows and build Git.
+
+NOTE: By default CMake uses Makefile as the build tool on Linux and Visual Studio in Windows,
+to use another tool say `ninja` add this to the command line when configuring.
+`-G Ninja`
+
+]]
+cmake_minimum_required(VERSION 3.14)
+
+#set the source directory to root of git
+set(CMAKE_SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/../..)
+if(WIN32)
+	set(VCPKG_DIR "${CMAKE_SOURCE_DIR}/compat/vcbuild/vcpkg")
+	if(MSVC AND NOT EXISTS ${VCPKG_DIR})
+		message("Initializing vcpkg and building the Git's dependencies (this will take a while...)")
+		execute_process(COMMAND ${CMAKE_SOURCE_DIR}/compat/vcbuild/vcpkg_install.bat)
+	endif()
+	list(APPEND CMAKE_PREFIX_PATH "${VCPKG_DIR}/installed/x64-windows")
+
+	# In the vcpkg edition, we need this to be able to link to libcurl
+	set(CURL_NO_CURL_CMAKE ON)
+endif()
+
+find_program(SH_EXE sh PATHS "C:/Program Files/Git/bin")
+if(NOT SH_EXE)
+	message(FATAL_ERROR "sh: shell interpreter was not found in your path, please install one."
+			"On Windows, you can get it as part of 'Git for Windows' install at https://gitforwindows.org/")
+endif()
+
+#Create GIT-VERSION-FILE using GIT-VERSION-GEN
+if(NOT EXISTS ${CMAKE_SOURCE_DIR}/GIT-VERSION-FILE)
+	message("Generating GIT-VERSION-FILE")
+	execute_process(COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/GIT-VERSION-GEN
+		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
+endif()
+
+#Parse GIT-VERSION-FILE to get the version
+file(STRINGS ${CMAKE_SOURCE_DIR}/GIT-VERSION-FILE git_version REGEX "GIT_VERSION = (.*)")
+string(REPLACE "GIT_VERSION = " "" git_version ${git_version})
+string(FIND ${git_version} "GIT" location)
+if(location EQUAL -1)
+	string(REGEX MATCH "[0-9]*\\.[0-9]*\\.[0-9]*" git_version ${git_version})
+else()
+	string(REGEX MATCH "[0-9]*\\.[0-9]*" git_version ${git_version})
+	string(APPEND git_version ".0") #for building from a snapshot
+endif()
+
+project(git
+	VERSION ${git_version}
+	LANGUAGES C)
+
+
+#TODO gitk git-gui gitweb
+#TODO Enable NLS on windows natively
+#TODO Add pcre support
+
+#macros for parsing the Makefile for sources and scripts
+macro(parse_makefile_for_sources list_var regex)
+	file(STRINGS ${CMAKE_SOURCE_DIR}/Makefile ${list_var} REGEX "^${regex} \\+=(.*)")
+	string(REPLACE "${regex} +=" "" ${list_var} ${${list_var}})
+	string(REPLACE "$(COMPAT_OBJS)" "" ${list_var} ${${list_var}}) #remove "$(COMPAT_OBJS)" This is only for libgit.
+	string(STRIP ${${list_var}} ${list_var}) #remove trailing/leading whitespaces
+	string(REPLACE ".o" ".c;" ${list_var} ${${list_var}}) #change .o to .c, ; is for converting the string into a list
+	list(TRANSFORM ${list_var} STRIP) #remove trailing/leading whitespaces for each element in list
+	list(REMOVE_ITEM ${list_var} "") #remove empty list elements
+endmacro()
+
+macro(parse_makefile_for_scripts list_var regex lang)
+	file(STRINGS ${CMAKE_SOURCE_DIR}/Makefile ${list_var} REGEX "^${regex} \\+=(.*)")
+	string(REPLACE "${regex} +=" "" ${list_var} ${${list_var}})
+	string(STRIP ${${list_var}} ${list_var}) #remove trailing/leading whitespaces
+	string(REPLACE " " ";" ${list_var} ${${list_var}}) #convert string to a list
+	if(NOT ${lang}) #exclude for SCRIPT_LIB
+		list(TRANSFORM ${list_var} REPLACE "${lang}" "") #do the replacement
+	endif()
+endmacro()
+
+include(CheckTypeSize)
+include(CheckCSourceRuns)
+include(CheckCSourceCompiles)
+include(CheckIncludeFile)
+include(CheckFunctionExists)
+include(CheckSymbolExists)
+include(CheckStructHasMember)
+include(CTest)
+
+find_package(ZLIB REQUIRED)
+find_package(CURL)
+find_package(EXPAT)
+find_package(Iconv)
+
+#Don't use libintl on Windows Visual Studio and Clang builds
+if(NOT (WIN32 AND (CMAKE_C_COMPILER_ID STREQUAL "MSVC" OR CMAKE_C_COMPILER_ID STREQUAL "Clang")))
+	find_package(Intl)
+endif()
+
+if(NOT Intl_FOUND)
+	add_compile_definitions(NO_GETTEXT)
+	if(NOT Iconv_FOUND)
+		add_compile_definitions(NO_ICONV)
+	endif()
+endif()
+
+include_directories(SYSTEM ${ZLIB_INCLUDE_DIRS})
+if(CURL_FOUND)
+	include_directories(SYSTEM ${CURL_INCLUDE_DIRS})
+endif()
+if(EXPAT_FOUND)
+	include_directories(SYSTEM ${EXPAT_INCLUDE_DIRS})
+endif()
+if(Iconv_FOUND)
+	include_directories(SYSTEM ${Iconv_INCLUDE_DIRS})
+endif()
+if(Intl_FOUND)
+	include_directories(SYSTEM ${Intl_INCLUDE_DIRS})
+endif()
+
+
+if(WIN32 AND NOT MSVC)#not required for visual studio builds
+	find_program(WINDRES_EXE windres)
+	if(NOT WINDRES_EXE)
+		message(FATAL_ERROR "Install windres on Windows for resource files")
+	endif()
+endif()
+
+find_program(MSGFMT_EXE msgfmt)
+if(NOT MSGFMT_EXE)
+	set(MSGFMT_EXE ${CMAKE_SOURCE_DIR}/compat/vcbuild/vcpkg/downloads/tools/msys2/msys64/usr/bin/msgfmt.exe)
+	if(NOT EXISTS ${MSGFMT_EXE})
+		message(WARNING "Text Translations won't be built")
+		unset(MSGFMT_EXE)
+	endif()
+endif()
+
+#Force all visual studio outputs to CMAKE_BINARY_DIR
+if(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
+	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_BINARY_DIR})
+	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_BINARY_DIR})
+	add_compile_options(/MP)
+endif()
+
+#default behaviour
+include_directories(${CMAKE_SOURCE_DIR})
+add_compile_definitions(GIT_HOST_CPU="${CMAKE_SYSTEM_PROCESSOR}")
+add_compile_definitions(SHA256_BLK INTERNAL_QSORT RUNTIME_PREFIX)
+add_compile_definitions(NO_OPENSSL SHA1_DC SHA1DC_NO_STANDARD_INCLUDES
+			SHA1DC_INIT_SAFE_HASH_DEFAULT=0
+			SHA1DC_CUSTOM_INCLUDE_SHA1_C="cache.h"
+			SHA1DC_CUSTOM_INCLUDE_UBC_CHECK_C="git-compat-util.h" )
+list(APPEND compat_SOURCES sha1dc_git.c sha1dc/sha1.c sha1dc/ubc_check.c block-sha1/sha1.c sha256/block/sha256.c compat/qsort_s.c)
+
+
+add_compile_definitions(PAGER_ENV="LESS=FRX LV=-c"
+			ETC_GITATTRIBUTES="etc/gitattributes"
+			ETC_GITCONFIG="etc/gitconfig"
+			GIT_EXEC_PATH="libexec/git-core"
+			GIT_LOCALE_PATH="share/locale"
+			GIT_MAN_PATH="share/man"
+			GIT_INFO_PATH="share/info"
+			GIT_HTML_PATH="share/doc/git-doc"
+			DEFAULT_HELP_FORMAT="html"
+			DEFAULT_GIT_TEMPLATE_DIR="share/git-core/templates"
+			GIT_VERSION="${PROJECT_VERSION}.GIT"
+			GIT_USER_AGENT="git/${PROJECT_VERSION}.GIT"
+			BINDIR="bin"
+			GIT_BUILT_FROM_COMMIT="")
+
+if(WIN32)
+	set(FALLBACK_RUNTIME_PREFIX /mingw64)
+	add_compile_definitions(FALLBACK_RUNTIME_PREFIX="${FALLBACK_RUNTIME_PREFIX}")
+else()
+	set(FALLBACK_RUNTIME_PREFIX /home/$ENV{USER})
+	add_compile_definitions(FALLBACK_RUNTIME_PREFIX="${FALLBACK_RUNTIME_PREFIX}")
+endif()
+
+
+#Platform Specific
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
+	if(CMAKE_C_COMPILER_ID STREQUAL "MSVC" OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
+		include_directories(${CMAKE_SOURCE_DIR}/compat/vcbuild/include)
+		add_compile_definitions(_CRT_SECURE_NO_WARNINGS _CRT_NONSTDC_NO_DEPRECATE)
+	endif()
+	include_directories(${CMAKE_SOURCE_DIR}/compat/win32)
+	add_compile_definitions(HAVE_ALLOCA_H NO_POSIX_GOODIES NATIVE_CRLF NO_UNIX_SOCKETS WIN32
+				_CONSOLE DETECT_MSYS_TTY STRIP_EXTENSION=".exe"  NO_SYMLINK_HEAD UNRELIABLE_FSTAT
+				NOGDI OBJECT_CREATION_MODE=1 __USE_MINGW_ANSI_STDIO=0
+				USE_NED_ALLOCATOR OVERRIDE_STRDUP MMAP_PREVENTS_DELETE USE_WIN32_MMAP
+				UNICODE _UNICODE HAVE_WPGMPTR ENSURE_MSYSTEM_IS_SET)
+	list(APPEND compat_SOURCES compat/mingw.c compat/winansi.c compat/win32/path-utils.c
+		compat/win32/pthread.c compat/win32mmap.c compat/win32/syslog.c
+		compat/win32/trace2_win32_process_info.c compat/win32/dirent.c
+		compat/nedmalloc/nedmalloc.c compat/strdup.c)
+	set(NO_UNIX_SOCKETS 1)
+
+elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+	add_compile_definitions(PROCFS_EXECUTABLE_PATH="/proc/self/exe" HAVE_DEV_TTY )
+	list(APPEND compat_SOURCES unix-socket.c)
+endif()
+
+set(EXE_EXTENSION ${CMAKE_EXECUTABLE_SUFFIX})
+
+#header checks
+check_include_file(libgen.h HAVE_LIBGEN_H)
+if(NOT HAVE_LIBGEN_H)
+	add_compile_definitions(NO_LIBGEN_H)
+	list(APPEND compat_SOURCES compat/basename.c)
+endif()
+
+check_include_file(sys/sysinfo.h HAVE_SYSINFO)
+if(HAVE_SYSINFO)
+	add_compile_definitions(HAVE_SYSINFO)
+endif()
+
+check_c_source_compiles("
+#include <alloca.h>
+
+int main(void)
+{
+	char *p = (char *) alloca(2 * sizeof(int));
+
+	if (p)
+		return 0;
+	return 0;
+}"
+HAVE_ALLOCA_H)
+if(HAVE_ALLOCA_H)
+	add_compile_definitions(HAVE_ALLOCA_H)
+endif()
+
+check_include_file(strings.h HAVE_STRINGS_H)
+if(HAVE_STRINGS_H)
+	add_compile_definitions(HAVE_STRINGS_H)
+endif()
+
+check_include_file(sys/select.h HAVE_SYS_SELECT_H)
+if(NOT HAVE_SYS_SELECT_H)
+	add_compile_definitions(NO_SYS_SELECT_H)
+endif()
+
+check_include_file(sys/poll.h HAVE_SYS_POLL_H)
+if(NOT HAVE_SYS_POLL_H)
+	add_compile_definitions(NO_SYS_POLL_H)
+endif()
+
+check_include_file(poll.h HAVE_POLL_H)
+if(NOT HAVE_POLL_H)
+	add_compile_definitions(NO_POLL_H)
+endif()
+
+check_include_file(inttypes.h HAVE_INTTYPES_H)
+if(NOT HAVE_INTTYPES_H)
+	add_compile_definitions(NO_INTTYPES_H)
+endif()
+
+check_include_file(paths.h HAVE_PATHS_H)
+if(HAVE_PATHS_H)
+	add_compile_definitions(HAVE_PATHS_H)
+endif()
+
+#function checks
+set(function_checks
+	strcasestr memmem strlcpy strtoimax strtoumax strtoull
+	setenv mkdtemp poll pread memmem)
+
+#unsetenv,hstrerror are incompatible with windows build
+if(NOT WIN32)
+	list(APPEND function_checks unsetenv hstrerror)
+endif()
+
+foreach(f ${function_checks})
+	string(TOUPPER ${f} uf)
+	check_function_exists(${f} HAVE_${uf})
+	if(NOT HAVE_${uf})
+		add_compile_definitions(NO_${uf})
+	endif()
+endforeach()
+
+if(NOT HAVE_POLL_H OR NOT HAVE_SYS_POLL_H OR NOT HAVE_POLL)
+	include_directories(${CMAKE_SOURCE_DIR}/compat/poll)
+	add_compile_definitions(NO_POLL)
+	list(APPEND compat_SOURCES compat/poll/poll.c)
+endif()
+
+if(NOT HAVE_STRCASESTR)
+	list(APPEND compat_SOURCES compat/strcasestr.c)
+endif()
+
+if(NOT HAVE_STRLCPY)
+	list(APPEND compat_SOURCES compat/strlcpy.c)
+endif()
+
+if(NOT HAVE_STRTOUMAX)
+	list(APPEND compat_SOURCES compat/strtoumax.c compat/strtoimax.c)
+endif()
+
+if(NOT HAVE_SETENV)
+	list(APPEND compat_SOURCES compat/setenv.c)
+endif()
+
+if(NOT HAVE_MKDTEMP)
+	list(APPEND compat_SOURCES compat/mkdtemp.c)
+endif()
+
+if(NOT HAVE_PREAD)
+	list(APPEND compat_SOURCES compat/pread.c)
+endif()
+
+if(NOT HAVE_MEMMEM)
+	list(APPEND compat_SOURCES compat/memmem.c)
+endif()
+
+if(NOT WIN32)
+	if(NOT HAVE_UNSETENV)
+		list(APPEND compat_SOURCES compat/unsetenv.c)
+	endif()
+
+	if(NOT HAVE_HSTRERROR)
+		list(APPEND compat_SOURCES compat/hstrerror.c)
+	endif()
+endif()
+
+check_function_exists(getdelim HAVE_GETDELIM)
+if(HAVE_GETDELIM)
+	add_compile_definitions(HAVE_GETDELIM)
+endif()
+
+check_function_exists(clock_gettime HAVE_CLOCK_GETTIME)
+check_symbol_exists(CLOCK_MONOTONIC "time.h" HAVE_CLOCK_MONOTONIC)
+if(HAVE_CLOCK_GETTIME)
+	add_compile_definitions(HAVE_CLOCK_GETTIME)
+endif()
+if(HAVE_CLOCK_MONOTONIC)
+	add_compile_definitions(HAVE_CLOCK_MONOTONIC)
+endif()
+
+#check for st_blocks in struct stat
+check_struct_has_member("struct stat" st_blocks "sys/stat.h" STRUCT_STAT_HAS_ST_BLOCKS)
+if(NOT STRUCT_STAT_HAS_ST_BLOCKS)
+	add_compile_definitions(NO_ST_BLOCKS_IN_STRUCT_STAT)
+endif()
+
+#compile checks
+check_c_source_runs("
+#include<stdio.h>
+#include<stdarg.h>
+#include<string.h>
+#include<stdlib.h>
+
+int test_vsnprintf(char *str, size_t maxsize, const char *format, ...)
+{
+	int ret;
+	va_list ap;
+
+	va_start(ap, format);
+	ret = vsnprintf(str, maxsize, format, ap);
+	va_end(ap);
+	return ret;
+}
+
+int main(void)
+{
+	char buf[6];
+
+	if (test_vsnprintf(buf, 3, \"%s\", \"12345\") != 5
+		|| strcmp(buf, \"12\"))
+			return 1;
+	if (snprintf(buf, 3, \"%s\", \"12345\") != 5
+		|| strcmp(buf, \"12\"))
+			return 1;
+	return 0;
+}"
+SNPRINTF_OK)
+if(NOT SNPRINTF_OK)
+	add_compile_definitions(SNPRINTF_RETURNS_BOGUS)
+	list(APPEND compat_SOURCES compat/snprintf.c)
+endif()
+
+check_c_source_runs("
+#include<stdio.h>
+
+int main(void)
+{
+	FILE *f = fopen(\".\", \"r\");
+
+	return f != NULL;
+}"
+FREAD_READS_DIRECTORIES_NO)
+if(NOT FREAD_READS_DIRECTORIES_NO)
+	add_compile_definitions(FREAD_READS_DIRECTORIES)
+	list(APPEND compat_SOURCES compat/fopen.c)
+endif()
+
+check_c_source_compiles("
+#include <regex.h>
+#ifndef REG_STARTEND
+#error oops we dont have it
+#endif
+
+int main(void)
+{
+	return 0;
+}"
+HAVE_REGEX)
+if(NOT HAVE_REGEX)
+	include_directories(${CMAKE_SOURCE_DIR}/compat/regex)
+	list(APPEND compat_SOURCES compat/regex/regex.c )
+	add_compile_definitions(NO_REGEX NO_MBSUPPORT GAWK)
+endif()
+
+
+check_c_source_compiles("
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+
+int main(void)
+{
+	int val, mib[2];
+	size_t len;
+
+	mib[0] = CTL_HW;
+	mib[1] = 1;
+	len = sizeof(val);
+	return sysctl(mib, 2, &val, &len, NULL, 0) ? 1 : 0;
+}"
+HAVE_BSD_SYSCTL)
+if(HAVE_BSD_SYSCTL)
+	add_compile_definitions(HAVE_BSD_SYSCTL)
+endif()
+
+set(CMAKE_REQUIRED_LIBRARIES ${Iconv_LIBRARIES})
+set(CMAKE_REQUIRED_INCLUDES ${Iconv_INCLUDE_DIRS})
+
+check_c_source_compiles("
+#include <iconv.h>
+
+extern size_t iconv(iconv_t cd,
+		char **inbuf, size_t *inbytesleft,
+		char **outbuf, size_t *outbytesleft);
+
+int main(void)
+{
+	return 0;
+}"
+HAVE_NEW_ICONV)
+if(HAVE_NEW_ICONV)
+	set(HAVE_OLD_ICONV 0)
+else()
+	set(HAVE_OLD_ICONV 1)
+endif()
+
+check_c_source_runs("
+#include <iconv.h>
+#if ${HAVE_OLD_ICONV}
+typedef const char *iconv_ibp;
+#else
+typedef char *iconv_ibp;
+#endif
+
+int main(void)
+{
+	int v;
+	iconv_t conv;
+	char in[] = \"a\";
+	iconv_ibp pin = in;
+	char out[20] = \"\";
+	char *pout = out;
+	size_t isz = sizeof(in);
+	size_t osz = sizeof(out);
+
+	conv = iconv_open(\"UTF-16\", \"UTF-8\");
+	iconv(conv, &pin, &isz, &pout, &osz);
+	iconv_close(conv);
+	v = (unsigned char)(out[0]) + (unsigned char)(out[1]);
+	return v != 0xfe + 0xff;
+}"
+ICONV_DOESNOT_OMIT_BOM)
+if(NOT ICONV_DOESNOT_OMIT_BOM)
+	add_compile_definitions(ICONV_OMITS_BOM)
+endif()
+
+unset(CMAKE_REQUIRED_LIBRARIES)
+unset(CMAKE_REQUIRED_INCLUDES)
+
+
+#programs
+set(PROGRAMS_BUILT
+	git git-daemon git-http-backend git-sh-i18n--envsubst
+	git-shell)
+
+if(NOT CURL_FOUND)
+	list(APPEND excluded_progs git-http-fetch git-http-push)
+	add_compile_definitions(NO_CURL)
+	message(WARNING "git-http-push and git-http-fetch will not be built")
+else()
+	list(APPEND PROGRAMS_BUILT git-http-fetch git-http-push git-imap-send git-remote-http)
+	if(CURL_VERSION_STRING VERSION_GREATER_EQUAL 7.34.0)
+		add_compile_definitions(USE_CURL_FOR_IMAP_SEND)
+	endif()
+endif()
+
+if(NOT EXPAT_FOUND)
+	list(APPEND excluded_progs git-http-push)
+	add_compile_definitions(NO_EXPAT)
+else()
+	list(APPEND PROGRAMS_BUILT git-http-push)
+	if(EXPAT_VERSION_STRING VERSION_LESS_EQUAL 1.2)
+		add_compile_definitions(EXPAT_NEEDS_XMLPARSE_H)
+	endif()
+endif()
+
+list(REMOVE_DUPLICATES excluded_progs)
+list(REMOVE_DUPLICATES PROGRAMS_BUILT)
+
+
+foreach(p ${excluded_progs})
+	list(APPEND EXCLUSION_PROGS --exclude-program ${p} )
+endforeach()
+
+#for comparing null values
+list(APPEND EXCLUSION_PROGS empty)
+set(EXCLUSION_PROGS_CACHE ${EXCLUSION_PROGS} CACHE STRING "Programs not built" FORCE)
+
+if(NOT EXISTS ${CMAKE_BINARY_DIR}/command-list.h OR NOT EXCLUSION_PROGS_CACHE STREQUAL EXCLUSION_PROGS)
+	list(REMOVE_ITEM EXCLUSION_PROGS empty)
+	message("Generating command-list.h")
+	execute_process(COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/generate-cmdlist.sh ${EXCLUSION_PROGS} command-list.txt
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+			OUTPUT_FILE ${CMAKE_BINARY_DIR}/command-list.h)
+endif()
+
+if(NOT EXISTS ${CMAKE_BINARY_DIR}/config-list.h)
+	message("Generating config-list.h")
+	execute_process(COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/generate-configlist.sh
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+			OUTPUT_FILE ${CMAKE_BINARY_DIR}/config-list.h)
+endif()
+
+include_directories(${CMAKE_BINARY_DIR})
+
+#build
+#libgit
+parse_makefile_for_sources(libgit_SOURCES "LIB_OBJS")
+
+list(TRANSFORM libgit_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
+list(TRANSFORM compat_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
+add_library(libgit ${libgit_SOURCES} ${compat_SOURCES})
+
+#libxdiff
+parse_makefile_for_sources(libxdiff_SOURCES "XDIFF_OBJS")
+
+list(TRANSFORM libxdiff_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
+add_library(xdiff STATIC ${libxdiff_SOURCES})
+
+if(WIN32)
+	if(NOT MSVC)#use windres when compiling with gcc and clang
+		add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/git.res
+				COMMAND ${WINDRES_EXE} -O coff -DMAJOR=${PROJECT_VERSION_MAJOR} -DMINOR=${PROJECT_VERSION_MINOR}
+					-DMICRO=${PROJECT_VERSION_PATCH} -DPATCHLEVEL=0 -DGIT_VERSION="\\\"${PROJECT_VERSION}.GIT\\\""
+					-i ${CMAKE_SOURCE_DIR}/git.rc -o ${CMAKE_BINARY_DIR}/git.res
+				WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+				VERBATIM)
+	else()#MSVC use rc
+		add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/git.res
+				COMMAND ${CMAKE_RC_COMPILER} /d MAJOR=${PROJECT_VERSION_MAJOR} /d MINOR=${PROJECT_VERSION_MINOR}
+					/d MICRO=${PROJECT_VERSION_PATCH} /d PATCHLEVEL=0 /d GIT_VERSION="${PROJECT_VERSION}.GIT"
+					/fo ${CMAKE_BINARY_DIR}/git.res ${CMAKE_SOURCE_DIR}/git.rc
+				WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+				VERBATIM)
+	endif()
+	add_custom_target(git-rc DEPENDS ${CMAKE_BINARY_DIR}/git.res)
+endif()
+
+#link all required libraries to common-main
+add_library(common-main OBJECT ${CMAKE_SOURCE_DIR}/common-main.c)
+
+target_link_libraries(common-main libgit xdiff ${ZLIB_LIBRARIES})
+if(Intl_FOUND)
+	target_link_libraries(common-main ${Intl_LIBRARIES})
+endif()
+if(Iconv_FOUND)
+	target_link_libraries(common-main ${Iconv_LIBRARIES})
+endif()
+if(WIN32)
+	target_link_libraries(common-main ws2_32 ntdll ${CMAKE_BINARY_DIR}/git.res)
+	add_dependencies(common-main git-rc)
+	if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
+		target_link_options(common-main PUBLIC -municode -Wl,--nxcompat -Wl,--dynamicbase -Wl,--pic-executable,-e,mainCRTStartup)
+	elseif(CMAKE_C_COMPILER_ID STREQUAL "Clang")
+		target_link_options(common-main PUBLIC -municode -Wl,-nxcompat -Wl,-dynamicbase -Wl,-entry:wmainCRTStartup -Wl,invalidcontinue.obj)
+	elseif(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
+		target_link_options(common-main PUBLIC /IGNORE:4217 /IGNORE:4049 /NOLOGO /ENTRY:wmainCRTStartup /SUBSYSTEM:CONSOLE invalidcontinue.obj)
+	else()
+		message(FATAL_ERROR "Unhandled compiler: ${CMAKE_C_COMPILER_ID}")
+	endif()
+elseif(UNIX)
+	target_link_libraries(common-main pthread rt)
+endif()
+
+#git
+parse_makefile_for_sources(git_SOURCES "BUILTIN_OBJS")
+
+list(TRANSFORM git_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
+add_executable(git ${CMAKE_SOURCE_DIR}/git.c ${git_SOURCES})
+target_link_libraries(git common-main)
+
+add_executable(git-daemon ${CMAKE_SOURCE_DIR}/daemon.c)
+target_link_libraries(git-daemon common-main)
+
+add_executable(git-http-backend ${CMAKE_SOURCE_DIR}/http-backend.c)
+target_link_libraries(git-http-backend common-main)
+
+add_executable(git-sh-i18n--envsubst ${CMAKE_SOURCE_DIR}/sh-i18n--envsubst.c)
+target_link_libraries(git-sh-i18n--envsubst common-main)
+
+add_executable(git-shell ${CMAKE_SOURCE_DIR}/shell.c)
+target_link_libraries(git-shell common-main)
+
+if(CURL_FOUND)
+	add_library(http_obj OBJECT ${CMAKE_SOURCE_DIR}/http.c)
+
+	add_executable(git-imap-send ${CMAKE_SOURCE_DIR}/imap-send.c)
+	target_link_libraries(git-imap-send http_obj common-main ${CURL_LIBRARIES})
+
+	add_executable(git-http-fetch ${CMAKE_SOURCE_DIR}/http-walker.c ${CMAKE_SOURCE_DIR}/http-fetch.c)
+	target_link_libraries(git-http-fetch http_obj common-main ${CURL_LIBRARIES})
+
+	add_executable(git-remote-http ${CMAKE_SOURCE_DIR}/http-walker.c ${CMAKE_SOURCE_DIR}/remote-curl.c)
+	target_link_libraries(git-remote-http http_obj common-main ${CURL_LIBRARIES} )
+
+	if(EXPAT_FOUND)
+		add_executable(git-http-push ${CMAKE_SOURCE_DIR}/http-push.c)
+		target_link_libraries(git-http-push http_obj common-main ${CURL_LIBRARIES} ${EXPAT_LIBRARIES})
+	endif()
+endif()
+
+set(git_builtin_extra
+	cherry cherry-pick format-patch fsck-objects
+	init merge-subtree restore show
+	stage status switch whatchanged)
+
+#Creating hardlinks
+foreach(s ${git_SOURCES} ${git_builtin_extra})
+	string(REPLACE "${CMAKE_SOURCE_DIR}/builtin/" "" s ${s})
+	string(REPLACE ".c" "" s ${s})
+	file(APPEND ${CMAKE_BINARY_DIR}/CreateLinks.cmake "file(CREATE_LINK git${EXE_EXTENSION} git-${s}${EXE_EXTENSION})\n")
+	list(APPEND git_links ${CMAKE_BINARY_DIR}/git-${s}${EXE_EXTENSION})
+endforeach()
+
+if(CURL_FOUND)
+	set(remote_exes
+		git-remote-https git-remote-ftp git-remote-ftps)
+	foreach(s ${remote_exes})
+		file(APPEND ${CMAKE_BINARY_DIR}/CreateLinks.cmake "file(CREATE_LINK git-remote-http${EXE_EXTENSION} ${s}${EXE_EXTENSION})\n")
+		list(APPEND git_http_links ${CMAKE_BINARY_DIR}/${s}${EXE_EXTENSION})
+	endforeach()
+endif()
+
+add_custom_command(OUTPUT ${git_links} ${git_http_links}
+		COMMAND ${CMAKE_COMMAND} -P ${CMAKE_BINARY_DIR}/CreateLinks.cmake
+		DEPENDS git git-remote-http)
+add_custom_target(git-links ALL DEPENDS ${git_links} ${git_http_links})
+
+
+#creating required scripts
+set(SHELL_PATH /bin/sh)
+set(PERL_PATH /usr/bin/perl)
+set(LOCALEDIR ${FALLBACK_RUNTIME_PREFIX}/share/locale)
+set(GITWEBDIR ${FALLBACK_RUNTIME_PREFIX}/share/locale)
+set(INSTLIBDIR ${FALLBACK_RUNTIME_PREFIX}/share/perl5)
+
+#shell scripts
+parse_makefile_for_scripts(git_sh_scripts "SCRIPT_SH" ".sh")
+parse_makefile_for_scripts(git_shlib_scripts "SCRIPT_LIB" "")
+set(git_shell_scripts
+	${git_sh_scripts} ${git_shlib_scripts} git-instaweb)
+
+foreach(script ${git_shell_scripts})
+	file(STRINGS ${CMAKE_SOURCE_DIR}/${script}.sh content NEWLINE_CONSUME)
+	string(REPLACE "@SHELL_PATH@" "${SHELL_PATH}" content "${content}")
+	string(REPLACE "@@DIFF@@" "diff" content "${content}")
+	string(REPLACE "@LOCALEDIR@" "${LOCALEDIR}" content "${content}")
+	string(REPLACE "@GITWEBDIR@" "${GITWEBDIR}" content "${content}")
+	string(REPLACE "@@NO_CURL@@" "" content "${content}")
+	string(REPLACE "@@USE_GETTEXT_SCHEME@@" "" content "${content}")
+	string(REPLACE "# @@BROKEN_PATH_FIX@@" "" content "${content}")
+	string(REPLACE "@@PERL@@" "${PERL_PATH}" content "${content}")
+	string(REPLACE "@@SANE_TEXT_GREP@@" "-a" content "${content}")
+	string(REPLACE "@@PAGER_ENV@@" "LESS=FRX LV=-c" content "${content}")
+	file(WRITE ${CMAKE_BINARY_DIR}/${script} ${content})
+endforeach()
+
+#perl scripts
+parse_makefile_for_scripts(git_perl_scripts "SCRIPT_PERL" ".perl")
+
+#create perl header
+file(STRINGS ${CMAKE_SOURCE_DIR}/perl/header_templates/fixed_prefix.template.pl perl_header )
+string(REPLACE "@@PATHSEP@@" ":" perl_header "${perl_header}")
+string(REPLACE "@@INSTLIBDIR@@" "${INSTLIBDIR}" perl_header "${perl_header}")
+
+foreach(script ${git_perl_scripts})
+	file(STRINGS ${CMAKE_SOURCE_DIR}/${script}.perl content NEWLINE_CONSUME)
+	string(REPLACE "#!/usr/bin/perl" "#!/usr/bin/perl\n${perl_header}\n" content "${content}")
+	string(REPLACE "@@GIT_VERSION@@" "${PROJECT_VERSION}" content "${content}")
+	file(WRITE ${CMAKE_BINARY_DIR}/${script} ${content})
+endforeach()
+
+#python script
+file(STRINGS ${CMAKE_SOURCE_DIR}/git-p4.py content NEWLINE_CONSUME)
+string(REPLACE "#!/usr/bin/env python" "#!/usr/bin/python" content "${content}")
+file(WRITE ${CMAKE_BINARY_DIR}/git-p4 ${content})
+
+#perl modules
+file(GLOB_RECURSE perl_modules "${CMAKE_SOURCE_DIR}/perl/*.pm")
+
+foreach(pm ${perl_modules})
+	string(REPLACE "${CMAKE_SOURCE_DIR}/perl/" "" file_path ${pm})
+	file(STRINGS ${pm} content NEWLINE_CONSUME)
+	string(REPLACE "@@LOCALEDIR@@" "${LOCALEDIR}" content "${content}")
+	string(REPLACE "@@NO_PERL_CPAN_FALLBACKS@@" "" content "${content}")
+	file(WRITE ${CMAKE_BINARY_DIR}/perl/build/lib/${file_path} ${content})
+#test-lib.sh requires perl/build/lib to be the build directory of perl modules
+endforeach()
+
+
+#templates
+file(GLOB templates "${CMAKE_SOURCE_DIR}/templates/*")
+list(TRANSFORM templates REPLACE "${CMAKE_SOURCE_DIR}/templates/" "")
+list(REMOVE_ITEM templates ".gitignore")
+list(REMOVE_ITEM templates "Makefile")
+list(REMOVE_ITEM templates "blt")# Prevents an error when reconfiguring for in source builds
+
+list(REMOVE_ITEM templates "branches--")
+file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/templates/blt/branches) #create branches
+
+#templates have @.*@ replacement so use configure_file instead
+foreach(tm ${templates})
+	string(REPLACE "--" "/" blt_tm ${tm})
+	string(REPLACE "this" "" blt_tm ${blt_tm})# for this--
+	configure_file(${CMAKE_SOURCE_DIR}/templates/${tm} ${CMAKE_BINARY_DIR}/templates/blt/${blt_tm} @ONLY)
+endforeach()
+
+
+#translations
+if(MSGFMT_EXE)
+	file(GLOB po_files "${CMAKE_SOURCE_DIR}/po/*.po")
+	list(TRANSFORM po_files REPLACE "${CMAKE_SOURCE_DIR}/po/" "")
+	list(TRANSFORM po_files REPLACE ".po" "")
+	foreach(po ${po_files})
+		file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES)
+		add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES/git.mo
+				COMMAND ${MSGFMT_EXE} --check --statistics -o ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES/git.mo ${CMAKE_SOURCE_DIR}/po/${po}.po)
+		list(APPEND po_gen ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES/git.mo)
+	endforeach()
+	add_custom_target(po-gen ALL DEPENDS ${po_gen})
+endif()
+
+
+#to help with the install
+list(TRANSFORM git_shell_scripts PREPEND "${CMAKE_BINARY_DIR}/")
+list(TRANSFORM git_perl_scripts PREPEND "${CMAKE_BINARY_DIR}/")
+
+#install
+install(TARGETS git git-shell
+	RUNTIME DESTINATION bin)
+install(PROGRAMS ${CMAKE_BINARY_DIR}/git-cvsserver
+	DESTINATION bin)
+
+list(REMOVE_ITEM PROGRAMS_BUILT git git-shell)
+install(TARGETS ${PROGRAMS_BUILT}
+	RUNTIME DESTINATION libexec/git-core)
+
+set(bin_links
+	git-receive-pack git-upload-archive git-upload-pack)
+
+foreach(b ${bin_links})
+install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/bin/${b}${EXE_EXTENSION})")
+endforeach()
+
+install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git${EXE_EXTENSION})")
+install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git-shell${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git-shell${EXE_EXTENSION})")
+
+foreach(b ${git_links})
+	string(REPLACE "${CMAKE_BINARY_DIR}" "" b ${b})
+	install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/${b}${EXE_EXTENSION})")
+endforeach()
+
+foreach(b ${git_http_links})
+	string(REPLACE "${CMAKE_BINARY_DIR}" "" b ${b})
+	install(CODE "file(CREATE_LINK  ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git-remote-http${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/${b}${EXE_EXTENSION})")
+endforeach()
+
+install(PROGRAMS ${git_shell_scripts} ${git_perl_scripts} ${CMAKE_BINARY_DIR}/git-p4
+	DESTINATION libexec/git-core)
+
+install(DIRECTORY ${CMAKE_SOURCE_DIR}/mergetools DESTINATION libexec/git-core)
+install(DIRECTORY ${CMAKE_BINARY_DIR}/perl/build/lib/ DESTINATION share/perl5
+	FILES_MATCHING PATTERN "*.pm")
+install(DIRECTORY ${CMAKE_BINARY_DIR}/templates/blt/ DESTINATION share/git-core/templates)
+
+if(MSGFMT_EXE)
+	install(DIRECTORY ${CMAKE_BINARY_DIR}/po/build/locale DESTINATION share)
+endif()
+
+
+if(BUILD_TESTING)
+
+#tests-helpers
+add_executable(test-fake-ssh ${CMAKE_SOURCE_DIR}/t/helper/test-fake-ssh.c)
+target_link_libraries(test-fake-ssh common-main)
+
+#test-tool
+parse_makefile_for_sources(test-tool_SOURCES "TEST_BUILTINS_OBJS")
+
+list(TRANSFORM test-tool_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/t/helper/")
+add_executable(test-tool ${CMAKE_SOURCE_DIR}/t/helper/test-tool.c ${test-tool_SOURCES})
+target_link_libraries(test-tool common-main)
+
+set_target_properties(test-fake-ssh test-tool
+			PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/t/helper)
+
+if(MSVC)
+	set_target_properties(test-fake-ssh test-tool
+				PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_BINARY_DIR}/t/helper)
+	set_target_properties(test-fake-ssh test-tool
+				PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_BINARY_DIR}/t/helper)
+endif()
+
+#wrapper scripts
+set(wrapper_scripts
+	git git-upload-pack git-receive-pack git-upload-archive git-shell git-remote-ext)
+
+set(wrapper_test_scripts
+	test-fake-ssh test-tool)
+
+
+foreach(script ${wrapper_scripts})
+	file(STRINGS ${CMAKE_SOURCE_DIR}/wrap-for-bin.sh content NEWLINE_CONSUME)
+	string(REPLACE "@@BUILD_DIR@@" "${CMAKE_BINARY_DIR}" content "${content}")
+	string(REPLACE "@@PROG@@" "${script}${EXE_EXTENSION}" content "${content}")
+	file(WRITE ${CMAKE_BINARY_DIR}/bin-wrappers/${script} ${content})
+endforeach()
+
+foreach(script ${wrapper_test_scripts})
+	file(STRINGS ${CMAKE_SOURCE_DIR}/wrap-for-bin.sh content NEWLINE_CONSUME)
+	string(REPLACE "@@BUILD_DIR@@" "${CMAKE_BINARY_DIR}" content "${content}")
+	string(REPLACE "@@PROG@@" "t/helper/${script}${EXE_EXTENSION}" content "${content}")
+	file(WRITE ${CMAKE_BINARY_DIR}/bin-wrappers/${script} ${content})
+endforeach()
+
+file(STRINGS ${CMAKE_SOURCE_DIR}/wrap-for-bin.sh content NEWLINE_CONSUME)
+string(REPLACE "@@BUILD_DIR@@" "${CMAKE_BINARY_DIR}" content "${content}")
+string(REPLACE "@@PROG@@" "git-cvsserver" content "${content}")
+file(WRITE ${CMAKE_BINARY_DIR}/bin-wrappers/git-cvsserver ${content})
+
+#options for configuring test options
+option(PERL_TESTS "Perform tests that use perl" ON)
+option(PYTHON_TESTS "Perform tests that use python" ON)
+
+#GIT-BUILD-OPTIONS
+set(TEST_SHELL_PATH ${SHELL_PATH})
+set(DIFF diff)
+set(PYTHON_PATH /usr/bin/python)
+set(TAR tar)
+set(NO_CURL )
+set(NO_EXPAT )
+set(USE_LIBPCRE1 )
+set(USE_LIBPCRE2 )
+set(NO_LIBPCRE1_JIT )
+set(NO_PERL )
+set(NO_PTHREADS )
+set(NO_PYTHON )
+set(PAGER_ENV "LESS=FRX LV=-c")
+set(DC_SHA1 YesPlease)
+set(RUNTIME_PREFIX true)
+set(NO_GETTEXT )
+
+if(NOT CURL_FOUND)
+	set(NO_CURL 1)
+endif()
+
+if(NOT EXPAT_FOUND)
+	set(NO_EXPAT 1)
+endif()
+
+if(NOT Intl_FOUND)
+	set(NO_GETTEXT 1)
+endif()
+
+if(NOT PERL_TESTS)
+	set(NO_PERL 1)
+endif()
+
+if(NOT PYTHON_TESTS)
+	set(NO_PYTHON 1)
+endif()
+
+file(WRITE ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "SHELL_PATH='${SHELL_PATH}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "TEST_SHELL_PATH='${TEST_SHELL_PATH}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PERL_PATH='${PERL_PATH}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "DIFF='${DIFF}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PYTHON_PATH='${PYTHON_PATH}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "TAR='${TAR}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_CURL='${NO_CURL}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_EXPAT='${NO_EXPAT}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "USE_LIBPCRE1='${USE_LIBPCRE1}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_LIBPCRE1_JIT='${NO_LIBPCRE1_JIT}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PERL='${NO_PERL}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PTHREADS='${NO_PTHREADS}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_UNIX_SOCKETS='${NO_UNIX_SOCKETS}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PAGER_ENV='${PAGER_ENV}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "DC_SHA1='${DC_SHA1}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "X='${EXE_EXTENSION}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_GETTEXT='${NO_GETTEXT}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "RUNTIME_PREFIX='${RUNTIME_PREFIX}'\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PYTHON='${NO_PYTHON}'\n")
+if(WIN32)
+	file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PATH=\"$PATH:$TEST_DIRECTORY/../compat/vcbuild/vcpkg/installed/x64-windows/bin\"\n")
+endif()
+
+#Make the tests work when building out of the source tree
+get_filename_component(CACHE_PATH ${CMAKE_CURRENT_LIST_DIR}/../../CMakeCache.txt ABSOLUTE)
+if(NOT ${CMAKE_BINARY_DIR}/CMakeCache.txt STREQUAL ${CACHE_PATH})
+	file(RELATIVE_PATH BUILD_DIR_RELATIVE ${CMAKE_SOURCE_DIR} ${CMAKE_BINARY_DIR}/CMakeCache.txt)
+	string(REPLACE "/CMakeCache.txt" "" BUILD_DIR_RELATIVE ${BUILD_DIR_RELATIVE})
+	#Setting the build directory in test-lib.sh before running tests
+	file(WRITE ${CMAKE_BINARY_DIR}/CTestCustom.cmake
+		"file(STRINGS ${CMAKE_SOURCE_DIR}/t/test-lib.sh GIT_BUILD_DIR_REPL REGEX \"GIT_BUILD_DIR=(.*)\")\n"
+		"file(STRINGS ${CMAKE_SOURCE_DIR}/t/test-lib.sh content NEWLINE_CONSUME)\n"
+		"string(REPLACE \"\${GIT_BUILD_DIR_REPL}\" \"GIT_BUILD_DIR=\\\"$TEST_DIRECTORY/../${BUILD_DIR_RELATIVE}\\\"\" content \"\${content}\")\n"
+		"file(WRITE ${CMAKE_SOURCE_DIR}/t/test-lib.sh \${content})")
+	#misc copies
+	file(COPY ${CMAKE_SOURCE_DIR}/t/chainlint.sed DESTINATION ${CMAKE_BINARY_DIR}/t/)
+	file(COPY ${CMAKE_SOURCE_DIR}/po/is.po DESTINATION ${CMAKE_BINARY_DIR}/po/)
+	file(COPY ${CMAKE_SOURCE_DIR}/mergetools/tkdiff DESTINATION ${CMAKE_BINARY_DIR}/mergetools/)
+	file(COPY ${CMAKE_SOURCE_DIR}/contrib/completion/git-prompt.sh DESTINATION ${CMAKE_BINARY_DIR}/contrib/completion/)
+	file(COPY ${CMAKE_SOURCE_DIR}/contrib/completion/git-completion.bash DESTINATION ${CMAKE_BINARY_DIR}/contrib/completion/)
+endif()
+
+file(GLOB test_scipts "${CMAKE_SOURCE_DIR}/t/t[0-9]*.sh")
+
+#test
+foreach(tsh ${test_scipts})
+	add_test(NAME ${tsh}
+		COMMAND ${SH_EXE} ${tsh}
+		WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/t)
+endforeach()
+
+endif()#BUILD_TESTING
diff --git a/third_party/git/contrib/buildsystems/Generators/Vcxproj.pm b/third_party/git/contrib/buildsystems/Generators/Vcxproj.pm
index 576ccabe1dbd..d2584450ba17 100644
--- a/third_party/git/contrib/buildsystems/Generators/Vcxproj.pm
+++ b/third_party/git/contrib/buildsystems/Generators/Vcxproj.pm
@@ -79,7 +79,9 @@ sub createProject {
     if (!$static_library) {
       $libs_release = join(";", sort(grep /^(?!libgit\.lib|xdiff\/lib\.lib|vcs-svn\/lib\.lib)/, @{$$build_structure{"$prefix${name}_LIBS"}}));
       $libs_debug = $libs_release;
-      $libs_debug =~ s/zlib\.lib/zlibd\.lib/;
+      $libs_debug =~ s/zlib\.lib/zlibd\.lib/g;
+      $libs_debug =~ s/libexpat\.lib/libexpatd\.lib/g;
+      $libs_debug =~ s/libcurl\.lib/libcurl-d\.lib/g;
     }
 
     $defines =~ s/-D//g;
@@ -119,13 +121,13 @@ sub createProject {
     <VCPKGArch Condition="'\$(Platform)'=='Win32'">x86-windows</VCPKGArch>
     <VCPKGArch Condition="'\$(Platform)'!='Win32'">x64-windows</VCPKGArch>
     <VCPKGArchDirectory>$cdup\\compat\\vcbuild\\vcpkg\\installed\\\$(VCPKGArch)</VCPKGArchDirectory>
-    <VCPKGBinDirectory Condition="'\(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\bin</VCPKGBinDirectory>
-    <VCPKGLibDirectory Condition="'\(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\lib</VCPKGLibDirectory>
-    <VCPKGBinDirectory Condition="'\(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\bin</VCPKGBinDirectory>
-    <VCPKGLibDirectory Condition="'\(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\lib</VCPKGLibDirectory>
+    <VCPKGBinDirectory Condition="'\$(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\bin</VCPKGBinDirectory>
+    <VCPKGLibDirectory Condition="'\$(Configuration)'=='Debug'">\$(VCPKGArchDirectory)\\debug\\lib</VCPKGLibDirectory>
+    <VCPKGBinDirectory Condition="'\$(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\bin</VCPKGBinDirectory>
+    <VCPKGLibDirectory Condition="'\$(Configuration)'!='Debug'">\$(VCPKGArchDirectory)\\lib</VCPKGLibDirectory>
     <VCPKGIncludeDirectory>\$(VCPKGArchDirectory)\\include</VCPKGIncludeDirectory>
-    <VCPKGLibs Condition="'\(Configuration)'=='Debug'">$libs_debug</VCPKGLibs>
-    <VCPKGLibs Condition="'\(Configuration)'!='Debug'">$libs_release</VCPKGLibs>
+    <VCPKGLibs Condition="'\$(Configuration)'=='Debug'">$libs_debug</VCPKGLibs>
+    <VCPKGLibs Condition="'\$(Configuration)'!='Debug'">$libs_release</VCPKGLibs>
   </PropertyGroup>
   <Import Project="\$(VCTargetsPath)\\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'\$(Configuration)'=='Debug'" Label="Configuration">
@@ -277,6 +279,9 @@ EOM
     if ($target eq 'git') {
       print F "  <Import Project=\"LinkOrCopyBuiltins.targets\" />\n";
     }
+    if ($target eq 'git-remote-http') {
+      print F "  <Import Project=\"LinkOrCopyRemoteHttp.targets\" />\n";
+    }
     print F << "EOM";
 </Project>
 EOM
diff --git a/third_party/git/contrib/buildsystems/engine.pl b/third_party/git/contrib/buildsystems/engine.pl
index fba8a3f056a0..2ff962045964 100755
--- a/third_party/git/contrib/buildsystems/engine.pl
+++ b/third_party/git/contrib/buildsystems/engine.pl
@@ -343,13 +343,13 @@ sub handleLinkLine
         } elsif ("$part" eq "-lz") {
             push(@libs, "zlib.lib");
         } elsif ("$part" eq "-lcrypto") {
-            push(@libs, "libeay32.lib");
+            push(@libs, "libcrypto.lib");
         } elsif ("$part" eq "-lssl") {
-            push(@libs, "ssleay32.lib");
+            push(@libs, "libssl.lib");
         } elsif ("$part" eq "-lcurl") {
             push(@libs, "libcurl.lib");
         } elsif ("$part" eq "-lexpat") {
-            push(@libs, "expat.lib");
+            push(@libs, "libexpat.lib");
         } elsif ("$part" eq "-liconv") {
             push(@libs, "libiconv.lib");
         } elsif ($part =~ /^[-\/]/) {
diff --git a/third_party/git/contrib/coccinelle/commit.cocci b/third_party/git/contrib/coccinelle/commit.cocci
index d03453341e84..af6dd4c20cae 100644
--- a/third_party/git/contrib/coccinelle/commit.cocci
+++ b/third_party/git/contrib/coccinelle/commit.cocci
@@ -20,7 +20,7 @@ expression s;
 + set_commit_tree(c, s)
   ...>}
 
-// These excluded functions must access c->maybe_tree direcly.
+// These excluded functions must access c->maybe_tree directly.
 // Note that if c->maybe_tree is written somewhere outside of these
 // functions, then the recommended transformation will be bogus with
 // repo_get_commit_tree() on the LHS.
@@ -32,3 +32,21 @@ expression c;
 - c->maybe_tree
 + repo_get_commit_tree(specify_the_right_repo_here, c)
   ...>}
+
+@@
+struct commit *c;
+expression E;
+@@
+(
+- c->generation = E;
++ commit_graph_data_at(c)->generation = E;
+|
+- c->graph_pos = E;
++ commit_graph_data_at(c)->graph_pos = E;
+|
+- c->generation
++ commit_graph_generation(c)
+|
+- c->graph_pos
++ commit_graph_position(c)
+)
diff --git a/third_party/git/contrib/coccinelle/hashmap.cocci b/third_party/git/contrib/coccinelle/hashmap.cocci
new file mode 100644
index 000000000000..d69e120ccffc
--- /dev/null
+++ b/third_party/git/contrib/coccinelle/hashmap.cocci
@@ -0,0 +1,16 @@
+@ hashmap_entry_init_usage @
+expression E;
+struct hashmap_entry HME;
+@@
+- HME.hash = E;
++ hashmap_entry_init(&HME, E);
+
+@@
+identifier f !~ "^hashmap_entry_init$";
+expression E;
+struct hashmap_entry *HMEP;
+@@
+  f(...) {<...
+- HMEP->hash = E;
++ hashmap_entry_init(HMEP, E);
+  ...>}
diff --git a/third_party/git/contrib/coccinelle/object_id.cocci b/third_party/git/contrib/coccinelle/object_id.cocci
index 3e536a9834b6..ddf4f22bd722 100644
--- a/third_party/git/contrib/coccinelle/object_id.cocci
+++ b/third_party/git/contrib/coccinelle/object_id.cocci
@@ -13,38 +13,6 @@ struct object_id *OIDPTR;
 @@
 struct object_id OID;
 @@
-- sha1_to_hex(OID.hash)
-+ oid_to_hex(&OID)
-
-@@
-identifier f != oid_to_hex;
-struct object_id *OIDPTR;
-@@
-  f(...) {<...
-- sha1_to_hex(OIDPTR->hash)
-+ oid_to_hex(OIDPTR)
-  ...>}
-
-@@
-expression E;
-struct object_id OID;
-@@
-- sha1_to_hex_r(E, OID.hash)
-+ oid_to_hex_r(E, &OID)
-
-@@
-identifier f != oid_to_hex_r;
-expression E;
-struct object_id *OIDPTR;
-@@
-   f(...) {<...
-- sha1_to_hex_r(E, OIDPTR->hash)
-+ oid_to_hex_r(E, OIDPTR)
-  ...>}
-
-@@
-struct object_id OID;
-@@
 - hashclr(OID.hash)
 + oidclr(&OID)
 
diff --git a/third_party/git/contrib/completion/git-completion.bash b/third_party/git/contrib/completion/git-completion.bash
index e087c4bf0085..0a96ad87e7b6 100644
--- a/third_party/git/contrib/completion/git-completion.bash
+++ b/third_party/git/contrib/completion/git-completion.bash
@@ -39,6 +39,11 @@
 #     When set to "1", do not include "DWIM" suggestions in git-checkout
 #     and git-switch completion (e.g., completing "foo" when "origin/foo"
 #     exists).
+#
+#   GIT_COMPLETION_SHOW_ALL
+#
+#     When set to "1" suggest all options, including options which are
+#     typically hidden (e.g. '--allow-empty' for 'git commit').
 
 case "$COMP_WORDBREAKS" in
 *:*) : great ;;
@@ -50,7 +55,7 @@ esac
 # variable.
 __git_find_repo_path ()
 {
-	if [ -n "$__git_repo_path" ]; then
+	if [ -n "${__git_repo_path-}" ]; then
 		# we already know where it is
 		return
 	fi
@@ -301,6 +306,19 @@ __gitcomp_direct ()
 	COMPREPLY=($1)
 }
 
+# Similar to __gitcomp_direct, but appends to COMPREPLY instead.
+# Callers must take care of providing only words that match the current word
+# to be completed and adding any prefix and/or suffix (trailing space!), if
+# necessary.
+# 1: List of newline-separated matching completion words, complete with
+#    prefix and suffix.
+__gitcomp_direct_append ()
+{
+	local IFS=$'\n'
+
+	COMPREPLY+=($1)
+}
+
 __gitcompappend ()
 {
 	local x i=${#COMPREPLY[@]}
@@ -340,7 +358,7 @@ __gitcomp ()
 			c="$c${4-}"
 			if [[ $c == "$cur_"* ]]; then
 				case $c in
-				--*=*|*.) ;;
+				--*=|*.) ;;
 				*) c="$c " ;;
 				esac
 				COMPREPLY[i++]="${2-}$c"
@@ -360,7 +378,7 @@ __gitcomp ()
 			c="$c${4-}"
 			if [[ $c == "$cur_"* ]]; then
 				case $c in
-				--*=*|*.) ;;
+				*=|*.) ;;
 				*) c="$c " ;;
 				esac
 				COMPREPLY[i++]="${2-}$c"
@@ -373,7 +391,7 @@ __gitcomp ()
 # Clear the variables caching builtins' options when (re-)sourcing
 # the completion script.
 if [[ -n ${ZSH_VERSION-} ]]; then
-	unset $(set |sed -ne 's/^\(__gitcomp_builtin_[a-zA-Z0-9_][a-zA-Z0-9_]*\)=.*/\1/p') 2>/dev/null
+	unset ${(M)${(k)parameters[@]}:#__gitcomp_builtin_*} 2>/dev/null
 else
 	unset $(compgen -v __gitcomp_builtin_)
 fi
@@ -391,17 +409,24 @@ __gitcomp_builtin ()
 	# spaces must be replaced with underscore for multi-word
 	# commands, e.g. "git remote add" becomes remote_add.
 	local cmd="$1"
-	local incl="$2"
-	local excl="$3"
+	local incl="${2-}"
+	local excl="${3-}"
 
 	local var=__gitcomp_builtin_"${cmd/-/_}"
 	local options
-	eval "options=\$$var"
+	eval "options=\${$var-}"
+
+	local completion_helper
+	if [ "$GIT_COMPLETION_SHOW_ALL" = "1" ]; then
+		completion_helper="--git-completion-helper-all"
+	else
+		completion_helper="--git-completion-helper"
+	fi
 
 	if [ -z "$options" ]; then
 		# leading and trailing spaces are significant to make
 		# option removal work correctly.
-		options=" $incl $(__git ${cmd/_/ } --git-completion-helper) " || return
+		options=" $incl $(__git ${cmd/_/ } $completion_helper) " || return
 
 		for i in $excl; do
 			options="${options/ $i / }"
@@ -504,7 +529,7 @@ __git_index_files ()
 {
 	local root="$2" match="$3"
 
-	__git_ls_files_helper "$root" "$1" "$match" |
+	__git_ls_files_helper "$root" "$1" "${match:-?}" |
 	awk -F / -v pfx="${2//\\/\\\\}" '{
 		paths[$1] = 1
 	}
@@ -524,7 +549,7 @@ __git_index_files ()
 			# Even when a directory name itself does not contain
 			# any special characters, it will still be quoted if
 			# any of its (stripped) trailing path components do.
-			# Because of this we may have seen the same direcory
+			# Because of this we may have seen the same directory
 			# both quoted and unquoted.
 			if (p in paths)
 				# We have seen the same directory unquoted,
@@ -550,7 +575,7 @@ __git_index_files ()
 						 esc_idx, 1)
 			} else if (esc == "n") {
 				# Uh-oh, a newline character.
-				# We cant reliably put a pathname
+				# We cannot reliably put a pathname
 				# containing a newline into COMPREPLY,
 				# and the newline would create a mess.
 				# Skip this path.
@@ -565,7 +590,7 @@ __git_index_files ()
 			}
 		}
 		# Drop closing double quote, if there is one.
-		# (There isnt any if this is a directory, as it was
+		# (There is not any if this is a directory, as it was
 		# already stripped with the trailing path components.)
 		if (substr(p, length(p), 1) == "\"")
 			out = out substr(p, 1, length(p) - 1)
@@ -611,6 +636,19 @@ __git_heads ()
 			"refs/heads/$cur_*" "refs/heads/$cur_*/**"
 }
 
+# Lists branches from remote repositories.
+# 1: A prefix to be added to each listed branch (optional).
+# 2: List only branches matching this word (optional; list all branches if
+#    unset or empty).
+# 3: A suffix to be appended to each listed branch (optional).
+__git_remote_heads ()
+{
+	local pfx="${1-}" cur_="${2-}" sfx="${3-}"
+
+	__git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \
+			"refs/remotes/$cur_*" "refs/remotes/$cur_*/**"
+}
+
 # Lists tags from the local repository.
 # Accepts the same positional parameters as __git_heads() above.
 __git_tags ()
@@ -621,6 +659,26 @@ __git_tags ()
 			"refs/tags/$cur_*" "refs/tags/$cur_*/**"
 }
 
+# List unique branches from refs/remotes used for 'git checkout' and 'git
+# switch' tracking DWIMery.
+# 1: A prefix to be added to each listed branch (optional)
+# 2: List only branches matching this word (optional; list all branches if
+#    unset or empty).
+# 3: A suffix to be appended to each listed branch (optional).
+__git_dwim_remote_heads ()
+{
+	local pfx="${1-}" cur_="${2-}" sfx="${3-}"
+	local fer_pfx="${pfx//\%/%%}" # "escape" for-each-ref format specifiers
+
+	# employ the heuristic used by git checkout and git switch
+	# Try to find a remote branch that cur_es the completion word
+	# but only output if the branch name is unique
+	__git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \
+		--sort="refname:strip=3" \
+		"refs/remotes/*/$cur_*" "refs/remotes/*/$cur_*/**" | \
+	uniq -u
+}
+
 # Lists refs from the local (by default) or from a remote repository.
 # It accepts 0, 1 or 2 arguments:
 # 1: The remote to list refs from (optional; ignored, if set but empty).
@@ -696,13 +754,7 @@ __git_refs ()
 		__git_dir="$dir" __git for-each-ref --format="$fer_pfx%($format)$sfx" \
 			"${refs[@]}"
 		if [ -n "$track" ]; then
-			# employ the heuristic used by git checkout
-			# Try to find a remote branch that matches the completion word
-			# but only output if the branch name is unique
-			__git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \
-				--sort="refname:strip=3" \
-				"refs/remotes/*/$match*" "refs/remotes/*/$match*/**" | \
-			uniq -u
+			__git_dwim_remote_heads "$pfx" "$match" "$sfx"
 		fi
 		return
 	fi
@@ -749,29 +801,51 @@ __git_refs ()
 # Usage: __git_complete_refs [<option>]...
 # --remote=<remote>: The remote to list refs from, can be the name of a
 #                    configured remote, a path, or a URL.
-# --track: List unique remote branches for 'git checkout's tracking DWIMery.
+# --dwim: List unique remote branches for 'git switch's tracking DWIMery.
 # --pfx=<prefix>: A prefix to be added to each ref.
 # --cur=<word>: The current ref to be completed.  Defaults to the current
 #               word to be completed.
 # --sfx=<suffix>: A suffix to be appended to each ref instead of the default
 #                 space.
+# --mode=<mode>: What set of refs to complete, one of 'refs' (the default) to
+#                complete all refs, 'heads' to complete only branches, or
+#                'remote-heads' to complete only remote branches. Note that
+#                --remote is only compatible with --mode=refs.
 __git_complete_refs ()
 {
-	local remote track pfx cur_="$cur" sfx=" "
+	local remote= dwim= pfx= cur_="$cur" sfx=" " mode="refs"
 
 	while test $# != 0; do
 		case "$1" in
 		--remote=*)	remote="${1##--remote=}" ;;
-		--track)	track="yes" ;;
+		--dwim)		dwim="yes" ;;
+		# --track is an old spelling of --dwim
+		--track)	dwim="yes" ;;
 		--pfx=*)	pfx="${1##--pfx=}" ;;
 		--cur=*)	cur_="${1##--cur=}" ;;
 		--sfx=*)	sfx="${1##--sfx=}" ;;
+		--mode=*)	mode="${1##--mode=}" ;;
 		*)		return 1 ;;
 		esac
 		shift
 	done
 
-	__gitcomp_direct "$(__git_refs "$remote" "$track" "$pfx" "$cur_" "$sfx")"
+	# complete references based on the specified mode
+	case "$mode" in
+		refs)
+			__gitcomp_direct "$(__git_refs "$remote" "" "$pfx" "$cur_" "$sfx")" ;;
+		heads)
+			__gitcomp_direct "$(__git_heads "$pfx" "$cur_" "$sfx")" ;;
+		remote-heads)
+			__gitcomp_direct "$(__git_remote_heads "$pfx" "$cur_" "$sfx")" ;;
+		*)
+			return 1 ;;
+	esac
+
+	# Append DWIM remote branch names if requested
+	if [ "$dwim" = "yes" ]; then
+		__gitcomp_direct_append "$(__git_dwim_remote_heads "$pfx" "$cur_" "$sfx")"
+	fi
 }
 
 # __git_refs2 requires 1 argument (to pass to __git_refs)
@@ -1069,15 +1143,32 @@ __git_aliased_command ()
 	done
 }
 
-# __git_find_on_cmdline requires 1 argument
+# Check whether one of the given words is present on the command line,
+# and print the first word found.
+#
+# Usage: __git_find_on_cmdline [<option>]... "<wordlist>"
+# --show-idx: Optionally show the index of the found word in the $words array.
 __git_find_on_cmdline ()
 {
-	local word subcommand c=1
+	local word c=1 show_idx
+
+	while test $# -gt 1; do
+		case "$1" in
+		--show-idx)	show_idx=y ;;
+		*)		return 1 ;;
+		esac
+		shift
+	done
+	local wordlist="$1"
+
 	while [ $c -lt $cword ]; do
-		word="${words[c]}"
-		for subcommand in $1; do
-			if [ "$subcommand" = "$word" ]; then
-				echo "$subcommand"
+		for word in $wordlist; do
+			if [ "$word" = "${words[c]}" ]; then
+				if [ -n "${show_idx-}" ]; then
+					echo "$c $word"
+				else
+					echo "$word"
+				fi
 				return
 			fi
 		done
@@ -1085,6 +1176,40 @@ __git_find_on_cmdline ()
 	done
 }
 
+# Similar to __git_find_on_cmdline, except that it loops backwards and thus
+# prints the *last* word found. Useful for finding which of two options that
+# supersede each other came last, such as "--guess" and "--no-guess".
+#
+# Usage: __git_find_last_on_cmdline [<option>]... "<wordlist>"
+# --show-idx: Optionally show the index of the found word in the $words array.
+__git_find_last_on_cmdline ()
+{
+	local word c=$cword show_idx
+
+	while test $# -gt 1; do
+		case "$1" in
+		--show-idx)	show_idx=y ;;
+		*)		return 1 ;;
+		esac
+		shift
+	done
+	local wordlist="$1"
+
+	while [ $c -gt 1 ]; do
+		((c--))
+		for word in $wordlist; do
+			if [ "$word" = "${words[c]}" ]; then
+				if [ -n "$show_idx" ]; then
+					echo "$c $word"
+				else
+					echo "$word"
+				fi
+				return
+			fi
+		done
+	done
+}
+
 # Echo the value of an option set on the command line or config
 #
 # $1: short option name
@@ -1180,6 +1305,7 @@ __git_count_arguments ()
 
 __git_whitespacelist="nowarn warn error error-all fix"
 __git_patchformat="mbox stgit stgit-series hg mboxrd"
+__git_showcurrentpatch="diff raw"
 __git_am_inprogress_options="--skip --continue --resolved --abort --quit --show-current-patch"
 
 _git_am ()
@@ -1198,6 +1324,10 @@ _git_am ()
 		__gitcomp "$__git_patchformat" "" "${cur##--patch-format=}"
 		return
 		;;
+	--show-current-patch=*)
+		__gitcomp "$__git_showcurrentpatch" "" "${cur##--show-current-patch=}"
+		return
+		;;
 	--*)
 		__gitcomp_builtin am "" \
 			"$__git_am_inprogress_options"
@@ -1250,10 +1380,7 @@ _git_archive ()
 		return
 		;;
 	--*)
-		__gitcomp "
-			--format= --list --verbose
-			--prefix= --remote= --exec= --output
-			"
+		__gitcomp_builtin archive "--format= --list --verbose --prefix= --worktree-attributes"
 		return
 		;;
 	esac
@@ -1337,10 +1464,66 @@ _git_bundle ()
 	esac
 }
 
+# Helper function to decide whether or not we should enable DWIM logic for
+# git-switch and git-checkout.
+#
+# To decide between the following rules in priority order
+# 1) the last provided of "--guess" or "--no-guess" explicitly enable or
+#    disable completion of DWIM logic respectively.
+# 2) If the --no-track option is provided, take this as a hint to disable the
+#    DWIM completion logic
+# 3) If GIT_COMPLETION_CHECKOUT_NO_GUESS is set, disable the DWIM completion
+#    logic, as requested by the user.
+# 4) Enable DWIM logic otherwise.
+#
+__git_checkout_default_dwim_mode ()
+{
+	local last_option dwim_opt="--dwim"
+
+	if [ "${GIT_COMPLETION_CHECKOUT_NO_GUESS-}" = "1" ]; then
+		dwim_opt=""
+	fi
+
+	# --no-track disables DWIM, but with lower priority than
+	# --guess/--no-guess
+	if [ -n "$(__git_find_on_cmdline "--no-track")" ]; then
+		dwim_opt=""
+	fi
+
+	# Find the last provided --guess or --no-guess
+	last_option="$(__git_find_last_on_cmdline "--guess --no-guess")"
+	case "$last_option" in
+		--guess)
+			dwim_opt="--dwim"
+			;;
+		--no-guess)
+			dwim_opt=""
+			;;
+	esac
+
+	echo "$dwim_opt"
+}
+
 _git_checkout ()
 {
 	__git_has_doubledash && return
 
+	local dwim_opt="$(__git_checkout_default_dwim_mode)"
+
+	case "$prev" in
+	-b|-B|--orphan)
+		# Complete local branches (and DWIM branch
+		# remote branch names) for an option argument
+		# specifying a new branch name. This is for
+		# convenience, assuming new branches are
+		# possibly based on pre-existing branch names.
+		__git_complete_refs $dwim_opt --mode="heads"
+		return
+		;;
+	*)
+		;;
+	esac
+
 	case "$cur" in
 	--conflict=*)
 		__gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -1349,19 +1532,28 @@ _git_checkout ()
 		__gitcomp_builtin checkout
 		;;
 	*)
-		# check if --track, --no-track, or --no-guess was specified
-		# if so, disable DWIM mode
-		local flags="--track --no-track --no-guess" track_opt="--track"
-		if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ] ||
-		   [ -n "$(__git_find_on_cmdline "$flags")" ]; then
-			track_opt=''
+		# At this point, we've already handled special completion for
+		# the arguments to -b/-B, and --orphan. There are 3 main
+		# things left we can possibly complete:
+		# 1) a start-point for -b/-B, -d/--detach, or --orphan
+		# 2) a remote head, for --track
+		# 3) an arbitrary reference, possibly including DWIM names
+		#
+
+		if [ -n "$(__git_find_on_cmdline "-b -B -d --detach --orphan")" ]; then
+			__git_complete_refs --mode="refs"
+		elif [ -n "$(__git_find_on_cmdline "--track")" ]; then
+			__git_complete_refs --mode="remote-heads"
+		else
+			__git_complete_refs $dwim_opt --mode="refs"
 		fi
-		__git_complete_refs $track_opt
 		;;
 	esac
 }
 
-__git_cherry_pick_inprogress_options="--continue --quit --abort"
+__git_sequencer_inprogress_options="--continue --quit --abort --skip"
+
+__git_cherry_pick_inprogress_options=$__git_sequencer_inprogress_options
 
 _git_cherry_pick ()
 {
@@ -1399,7 +1591,18 @@ _git_clean ()
 
 _git_clone ()
 {
+	case "$prev" in
+	-c|--config)
+		__git_complete_config_variable_name_and_value
+		return
+		;;
+	esac
 	case "$cur" in
+	--config=*)
+		__git_complete_config_variable_name_and_value \
+			--cur="${cur##--config=}"
+		return
+		;;
 	--*)
 		__gitcomp_builtin clone
 		return
@@ -1460,9 +1663,16 @@ __git_diff_algorithms="myers minimal patience histogram"
 
 __git_diff_submodule_formats="diff log short"
 
+__git_color_moved_opts="no default plain blocks zebra dimmed-zebra"
+
+__git_color_moved_ws_opts="no ignore-space-at-eol ignore-space-change
+			ignore-all-space allow-indentation-change"
+
 __git_diff_common_options="--stat --numstat --shortstat --summary
 			--patch-with-stat --name-only --name-status --color
 			--no-color --color-words --no-renames --check
+			--color-moved --color-moved= --no-color-moved
+			--color-moved-ws= --no-color-moved-ws
 			--full-index --binary --abbrev --diff-filter=
 			--find-copies-harder --ignore-cr-at-eol
 			--text --ignore-space-at-eol --ignore-space-change
@@ -1476,6 +1686,8 @@ __git_diff_common_options="--stat --numstat --shortstat --summary
 			--dirstat-by-file= --cumulative
 			--diff-algorithm=
 			--submodule --submodule= --ignore-submodules
+			--indent-heuristic --no-indent-heuristic
+			--textconv --no-textconv
 "
 
 _git_diff ()
@@ -1491,6 +1703,14 @@ _git_diff ()
 		__gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
 		return
 		;;
+	--color-moved=*)
+		__gitcomp "$__git_color_moved_opts" "" "${cur##--color-moved=}"
+		return
+		;;
+	--color-moved-ws=*)
+		__gitcomp "$__git_color_moved_ws_opts" "" "${cur##--color-moved-ws=}"
+		return
+		;;
 	--*)
 		__gitcomp "--cached --staged --pickaxe-all --pickaxe-regex
 			--base --ours --theirs --no-index
@@ -1503,8 +1723,8 @@ _git_diff ()
 }
 
 __git_mergetools_common="diffuse diffmerge ecmerge emerge kdiff3 meld opendiff
-			tkdiff vimdiff gvimdiff xxdiff araxis p4merge bc
-			codecompare smerge
+			tkdiff vimdiff nvimdiff gvimdiff xxdiff araxis p4merge
+			bc codecompare smerge
 "
 
 _git_difftool ()
@@ -1563,6 +1783,10 @@ _git_format_patch ()
 			" "" "${cur##--thread=}"
 		return
 		;;
+	--base=*|--interdiff=*|--range-diff=*)
+		__git_complete_refs --cur="${cur#--*=}"
+		return
+		;;
 	--*)
 		__gitcomp_builtin format-patch "$__git_format_patch_extra_options"
 		return
@@ -1737,7 +1961,7 @@ __git_log_shortlog_options="
 	--all-match --invert-grep
 "
 
-__git_log_pretty_formats="oneline short medium full fuller email raw format: mboxrd"
+__git_log_pretty_formats="oneline short medium full fuller reference email raw format: tformat: mboxrd"
 __git_log_date_formats="relative iso8601 iso8601-strict rfc2822 short local default raw unix format:"
 
 _git_log ()
@@ -1784,6 +2008,10 @@ _git_log ()
 		__gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
 		return
 		;;
+	--no-walk=*)
+		__gitcomp "sorted unsorted" "" "${cur##--no-walk=}"
+		return
+		;;
 	--*)
 		__gitcomp "
 			$__git_log_common_options
@@ -1791,19 +2019,23 @@ _git_log ()
 			$__git_log_gitk_options
 			--root --topo-order --date-order --reverse
 			--follow --full-diff
-			--abbrev-commit --abbrev=
+			--abbrev-commit --no-abbrev-commit --abbrev=
 			--relative-date --date=
 			--pretty= --format= --oneline
 			--show-signature
 			--cherry-mark
 			--cherry-pick
 			--graph
-			--decorate --decorate=
+			--decorate --decorate= --no-decorate
 			--walk-reflogs
+			--no-walk --no-walk= --do-walk
 			--parents --children
+			--expand-tabs --expand-tabs= --no-expand-tabs
+			--patch
 			$merge
 			$__git_diff_common_options
 			--pickaxe-all --pickaxe-regex
+			--patch --no-patch
 			"
 		return
 		;;
@@ -2004,15 +2236,18 @@ _git_range_diff ()
 	__git_complete_revlist
 }
 
+__git_rebase_inprogress_options="--continue --skip --abort --quit --show-current-patch"
+__git_rebase_interactive_inprogress_options="$__git_rebase_inprogress_options --edit-todo"
+
 _git_rebase ()
 {
 	__git_find_repo_path
 	if [ -f "$__git_repo_path"/rebase-merge/interactive ]; then
-		__gitcomp "--continue --skip --abort --quit --edit-todo --show-current-patch"
+		__gitcomp "$__git_rebase_interactive_inprogress_options"
 		return
 	elif [ -d "$__git_repo_path"/rebase-apply ] || \
 	     [ -d "$__git_repo_path"/rebase-merge ]; then
-		__gitcomp "--continue --skip --abort --quit --show-current-patch"
+		__gitcomp "$__git_rebase_inprogress_options"
 		return
 	fi
 	__git_complete_strategy && return
@@ -2021,20 +2256,13 @@ _git_rebase ()
 		__gitcomp "$__git_whitespacelist" "" "${cur##--whitespace=}"
 		return
 		;;
+	--onto=*)
+		__git_complete_refs --cur="${cur##--onto=}"
+		return
+		;;
 	--*)
-		__gitcomp "
-			--onto --merge --strategy --interactive
-			--rebase-merges --preserve-merges --stat --no-stat
-			--committer-date-is-author-date --ignore-date
-			--ignore-whitespace --whitespace=
-			--autosquash --no-autosquash
-			--fork-point --no-fork-point
-			--autostash --no-autostash
-			--verify --no-verify
-			--keep-empty --root --force-rebase --no-ff
-			--rerere-autoupdate
-			--exec
-			"
+		__gitcomp_builtin rebase "" \
+			"$__git_rebase_interactive_inprogress_options"
 
 		return
 	esac
@@ -2163,6 +2391,22 @@ _git_status ()
 
 _git_switch ()
 {
+	local dwim_opt="$(__git_checkout_default_dwim_mode)"
+
+	case "$prev" in
+	-c|-C|--orphan)
+		# Complete local branches (and DWIM branch
+		# remote branch names) for an option argument
+		# specifying a new branch name. This is for
+		# convenience, assuming new branches are
+		# possibly based on pre-existing branch names.
+		__git_complete_refs $dwim_opt --mode="heads"
+		return
+		;;
+	*)
+		;;
+	esac
+
 	case "$cur" in
 	--conflict=*)
 		__gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -2171,29 +2415,26 @@ _git_switch ()
 		__gitcomp_builtin switch
 		;;
 	*)
-		# check if --track, --no-track, or --no-guess was specified
-		# if so, disable DWIM mode
-		local track_opt="--track" only_local_ref=n
-		if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ] ||
-		   [ -n "$(__git_find_on_cmdline "--track --no-track --no-guess")" ]; then
-			track_opt=''
-		fi
-		# explicit --guess enables DWIM mode regardless of
-		# $GIT_COMPLETION_CHECKOUT_NO_GUESS
-		if [ -n "$(__git_find_on_cmdline "--guess")" ]; then
-			track_opt='--track'
-		fi
-		if [ -z "$(__git_find_on_cmdline "-d --detach")" ]; then
-			only_local_ref=y
-		else
-			# --guess --detach is invalid combination, no
-			# dwim will be done when --detach is specified
-			track_opt=
+		# Unlike in git checkout, git switch --orphan does not take
+		# a start point. Thus we really have nothing to complete after
+		# the branch name.
+		if [ -n "$(__git_find_on_cmdline "--orphan")" ]; then
+			return
 		fi
-		if [ $only_local_ref = y -a -z "$track_opt" ]; then
-			__gitcomp_direct "$(__git_heads "" "$cur" " ")"
+
+		# At this point, we've already handled special completion for
+		# -c/-C, and --orphan. There are 3 main things left to
+		# complete:
+		# 1) a start-point for -c/-C or -d/--detach
+		# 2) a remote head, for --track
+		# 3) a branch name, possibly including DWIM remote branches
+
+		if [ -n "$(__git_find_on_cmdline "-c -C -d --detach")" ]; then
+			__git_complete_refs --mode="refs"
+		elif [ -n "$(__git_find_on_cmdline "--track")" ]; then
+			__git_complete_refs --mode="remote-heads"
 		else
-			__git_complete_refs $track_opt
+			__git_complete_refs $dwim_opt --mode="heads"
 		fi
 		;;
 	esac
@@ -2225,181 +2466,282 @@ __git_config_vars=
 __git_compute_config_vars ()
 {
 	test -n "$__git_config_vars" ||
-	__git_config_vars="$(git help --config-for-completion | sort | uniq)"
+	__git_config_vars="$(git help --config-for-completion | sort -u)"
 }
 
-_git_config ()
+# Completes possible values of various configuration variables.
+#
+# Usage: __git_complete_config_variable_value [<option>]...
+# --varname=<word>: The name of the configuration variable whose value is
+#                   to be completed.  Defaults to the previous word on the
+#                   command line.
+# --cur=<word>: The current value to be completed.  Defaults to the current
+#               word to be completed.
+__git_complete_config_variable_value ()
 {
-	local varname
+	local varname="$prev" cur_="$cur"
+
+	while test $# != 0; do
+		case "$1" in
+		--varname=*)	varname="${1##--varname=}" ;;
+		--cur=*)	cur_="${1##--cur=}" ;;
+		*)		return 1 ;;
+		esac
+		shift
+	done
 
 	if [ "${BASH_VERSINFO[0]:-0}" -ge 4 ]; then
-		varname="${prev,,}"
+		varname="${varname,,}"
 	else
-		varname="$(echo "$prev" |tr A-Z a-z)"
+		varname="$(echo "$varname" |tr A-Z a-z)"
 	fi
 
 	case "$varname" in
 	branch.*.remote|branch.*.pushremote)
-		__gitcomp_nl "$(__git_remotes)"
+		__gitcomp_nl "$(__git_remotes)" "" "$cur_"
 		return
 		;;
 	branch.*.merge)
-		__git_complete_refs
+		__git_complete_refs --cur="$cur_"
 		return
 		;;
 	branch.*.rebase)
-		__gitcomp "false true merges preserve interactive"
+		__gitcomp "false true merges preserve interactive" "" "$cur_"
 		return
 		;;
 	remote.pushdefault)
-		__gitcomp_nl "$(__git_remotes)"
+		__gitcomp_nl "$(__git_remotes)" "" "$cur_"
 		return
 		;;
 	remote.*.fetch)
-		local remote="${prev#remote.}"
+		local remote="${varname#remote.}"
 		remote="${remote%.fetch}"
-		if [ -z "$cur" ]; then
+		if [ -z "$cur_" ]; then
 			__gitcomp_nl "refs/heads/" "" "" ""
 			return
 		fi
-		__gitcomp_nl "$(__git_refs_remotes "$remote")"
+		__gitcomp_nl "$(__git_refs_remotes "$remote")" "" "$cur_"
 		return
 		;;
 	remote.*.push)
-		local remote="${prev#remote.}"
+		local remote="${varname#remote.}"
 		remote="${remote%.push}"
 		__gitcomp_nl "$(__git for-each-ref \
-			--format='%(refname):%(refname)' refs/heads)"
+			--format='%(refname):%(refname)' refs/heads)" "" "$cur_"
 		return
 		;;
 	pull.twohead|pull.octopus)
 		__git_compute_merge_strategies
-		__gitcomp "$__git_merge_strategies"
-		return
-		;;
-	color.branch|color.diff|color.interactive|\
-	color.showbranch|color.status|color.ui)
-		__gitcomp "always never auto"
+		__gitcomp "$__git_merge_strategies" "" "$cur_"
 		return
 		;;
 	color.pager)
-		__gitcomp "false true"
+		__gitcomp "false true" "" "$cur_"
 		return
 		;;
 	color.*.*)
 		__gitcomp "
 			normal black red green yellow blue magenta cyan white
 			bold dim ul blink reverse
-			"
+			" "" "$cur_"
+		return
+		;;
+	color.*)
+		__gitcomp "false true always never auto" "" "$cur_"
 		return
 		;;
 	diff.submodule)
-		__gitcomp "$__git_diff_submodule_formats"
+		__gitcomp "$__git_diff_submodule_formats" "" "$cur_"
 		return
 		;;
 	help.format)
-		__gitcomp "man info web html"
+		__gitcomp "man info web html" "" "$cur_"
 		return
 		;;
 	log.date)
-		__gitcomp "$__git_log_date_formats"
+		__gitcomp "$__git_log_date_formats" "" "$cur_"
 		return
 		;;
 	sendemail.aliasfiletype)
-		__gitcomp "mutt mailrc pine elm gnus"
+		__gitcomp "mutt mailrc pine elm gnus" "" "$cur_"
 		return
 		;;
 	sendemail.confirm)
-		__gitcomp "$__git_send_email_confirm_options"
+		__gitcomp "$__git_send_email_confirm_options" "" "$cur_"
 		return
 		;;
 	sendemail.suppresscc)
-		__gitcomp "$__git_send_email_suppresscc_options"
+		__gitcomp "$__git_send_email_suppresscc_options" "" "$cur_"
 		return
 		;;
 	sendemail.transferencoding)
-		__gitcomp "7bit 8bit quoted-printable base64"
-		return
-		;;
-	--get|--get-all|--unset|--unset-all)
-		__gitcomp_nl "$(__git_config_get_set_variables)"
+		__gitcomp "7bit 8bit quoted-printable base64" "" "$cur_"
 		return
 		;;
 	*.*)
 		return
 		;;
 	esac
-	case "$cur" in
-	--*)
-		__gitcomp_builtin config
-		return
-		;;
+}
+
+# Completes configuration sections, subsections, variable names.
+#
+# Usage: __git_complete_config_variable_name [<option>]...
+# --cur=<word>: The current configuration section/variable name to be
+#               completed.  Defaults to the current word to be completed.
+# --sfx=<suffix>: A suffix to be appended to each fully completed
+#                 configuration variable name (but not to sections or
+#                 subsections) instead of the default space.
+__git_complete_config_variable_name ()
+{
+	local cur_="$cur" sfx
+
+	while test $# != 0; do
+		case "$1" in
+		--cur=*)	cur_="${1##--cur=}" ;;
+		--sfx=*)	sfx="${1##--sfx=}" ;;
+		*)		return 1 ;;
+		esac
+		shift
+	done
+
+	case "$cur_" in
 	branch.*.*)
-		local pfx="${cur%.*}." cur_="${cur##*.}"
-		__gitcomp "remote pushRemote merge mergeOptions rebase" "$pfx" "$cur_"
+		local pfx="${cur_%.*}."
+		cur_="${cur_##*.}"
+		__gitcomp "remote pushRemote merge mergeOptions rebase" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	branch.*)
-		local pfx="${cur%.*}." cur_="${cur#*.}"
+		local pfx="${cur%.*}."
+		cur_="${cur#*.}"
 		__gitcomp_direct "$(__git_heads "$pfx" "$cur_" ".")"
-		__gitcomp_nl_append $'autoSetupMerge\nautoSetupRebase\n' "$pfx" "$cur_"
+		__gitcomp_nl_append $'autoSetupMerge\nautoSetupRebase\n' "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	guitool.*.*)
-		local pfx="${cur%.*}." cur_="${cur##*.}"
+		local pfx="${cur_%.*}."
+		cur_="${cur_##*.}"
 		__gitcomp "
 			argPrompt cmd confirm needsFile noConsole noRescan
 			prompt revPrompt revUnmerged title
-			" "$pfx" "$cur_"
+			" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	difftool.*.*)
-		local pfx="${cur%.*}." cur_="${cur##*.}"
-		__gitcomp "cmd path" "$pfx" "$cur_"
+		local pfx="${cur_%.*}."
+		cur_="${cur_##*.}"
+		__gitcomp "cmd path" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	man.*.*)
-		local pfx="${cur%.*}." cur_="${cur##*.}"
-		__gitcomp "cmd path" "$pfx" "$cur_"
+		local pfx="${cur_%.*}."
+		cur_="${cur_##*.}"
+		__gitcomp "cmd path" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	mergetool.*.*)
-		local pfx="${cur%.*}." cur_="${cur##*.}"
-		__gitcomp "cmd path trustExitCode" "$pfx" "$cur_"
+		local pfx="${cur_%.*}."
+		cur_="${cur_##*.}"
+		__gitcomp "cmd path trustExitCode" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	pager.*)
-		local pfx="${cur%.*}." cur_="${cur#*.}"
+		local pfx="${cur_%.*}."
+		cur_="${cur_#*.}"
 		__git_compute_all_commands
-		__gitcomp_nl "$__git_all_commands" "$pfx" "$cur_"
+		__gitcomp_nl "$__git_all_commands" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	remote.*.*)
-		local pfx="${cur%.*}." cur_="${cur##*.}"
+		local pfx="${cur_%.*}."
+		cur_="${cur_##*.}"
 		__gitcomp "
 			url proxy fetch push mirror skipDefaultUpdate
 			receivepack uploadpack tagOpt pushurl
-			" "$pfx" "$cur_"
+			" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	remote.*)
-		local pfx="${cur%.*}." cur_="${cur#*.}"
+		local pfx="${cur_%.*}."
+		cur_="${cur_#*.}"
 		__gitcomp_nl "$(__git_remotes)" "$pfx" "$cur_" "."
-		__gitcomp_nl_append "pushDefault" "$pfx" "$cur_"
+		__gitcomp_nl_append "pushDefault" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	url.*.*)
-		local pfx="${cur%.*}." cur_="${cur##*.}"
-		__gitcomp "insteadOf pushInsteadOf" "$pfx" "$cur_"
+		local pfx="${cur_%.*}."
+		cur_="${cur_##*.}"
+		__gitcomp "insteadOf pushInsteadOf" "$pfx" "$cur_" "$sfx"
 		return
 		;;
 	*.*)
 		__git_compute_config_vars
-		__gitcomp "$__git_config_vars"
+		__gitcomp "$__git_config_vars" "" "$cur_" "$sfx"
 		;;
 	*)
 		__git_compute_config_vars
-		__gitcomp "$(echo "$__git_config_vars" | sed 's/\.[^ ]*/./g')"
+		__gitcomp "$(echo "$__git_config_vars" |
+				awk -F . '{
+					sections[$1] = 1
+				}
+				END {
+					for (s in sections)
+						print s "."
+				}
+				')" "" "$cur_"
+		;;
+	esac
+}
+
+# Completes '='-separated configuration sections/variable names and values
+# for 'git -c section.name=value'.
+#
+# Usage: __git_complete_config_variable_name_and_value [<option>]...
+# --cur=<word>: The current configuration section/variable name/value to be
+#               completed. Defaults to the current word to be completed.
+__git_complete_config_variable_name_and_value ()
+{
+	local cur_="$cur"
+
+	while test $# != 0; do
+		case "$1" in
+		--cur=*)	cur_="${1##--cur=}" ;;
+		*)		return 1 ;;
+		esac
+		shift
+	done
+
+	case "$cur_" in
+	*=*)
+		__git_complete_config_variable_value \
+			--varname="${cur_%%=*}" --cur="${cur_#*=}"
+		;;
+	*)
+		__git_complete_config_variable_name --cur="$cur_" --sfx='='
+		;;
+	esac
+}
+
+_git_config ()
+{
+	case "$prev" in
+	--get|--get-all|--unset|--unset-all)
+		__gitcomp_nl "$(__git_config_get_set_variables)"
+		return
+		;;
+	*.*)
+		__git_complete_config_variable_value
+		return
+		;;
+	esac
+	case "$cur" in
+	--*)
+		__gitcomp_builtin config
+		;;
+	*)
+		__git_complete_config_variable_name
+		;;
 	esac
 }
 
@@ -2499,6 +2841,13 @@ _git_reset ()
 
 _git_restore ()
 {
+	case "$prev" in
+	-s)
+		__git_complete_refs
+		return
+		;;
+	esac
+
 	case "$cur" in
 	--conflict=*)
 		__gitcomp "diff3 merge" "" "${cur##--conflict=}"
@@ -2512,7 +2861,7 @@ _git_restore ()
 	esac
 }
 
-__git_revert_inprogress_options="--continue --quit --abort"
+__git_revert_inprogress_options=$__git_sequencer_inprogress_options
 
 _git_revert ()
 {
@@ -2579,9 +2928,18 @@ _git_show ()
 		__gitcomp "$__git_diff_submodule_formats" "" "${cur##--submodule=}"
 		return
 		;;
+	--color-moved=*)
+		__gitcomp "$__git_color_moved_opts" "" "${cur##--color-moved=}"
+		return
+		;;
+	--color-moved-ws=*)
+		__gitcomp "$__git_color_moved_ws_opts" "" "${cur##--color-moved-ws=}"
+		return
+		;;
 	--*)
-		__gitcomp "--pretty= --format= --abbrev-commit --oneline
-			--show-signature
+		__gitcomp "--pretty= --format= --abbrev-commit --no-abbrev-commit
+			--oneline --show-signature --patch
+			--expand-tabs --expand-tabs= --no-expand-tabs
 			$__git_diff_common_options
 			"
 		return
@@ -2601,12 +2959,33 @@ _git_show_branch ()
 	__git_complete_revlist
 }
 
+_git_sparse_checkout ()
+{
+	local subcommands="list init set disable"
+	local subcommand="$(__git_find_on_cmdline "$subcommands")"
+	if [ -z "$subcommand" ]; then
+		__gitcomp "$subcommands"
+		return
+	fi
+
+	case "$subcommand,$cur" in
+	init,--*)
+		__gitcomp "--cone"
+		;;
+	set,--*)
+		__gitcomp "--stdin"
+		;;
+	*)
+		;;
+	esac
+}
+
 _git_stash ()
 {
 	local save_opts='--all --keep-index --no-keep-index --quiet --patch --include-untracked'
 	local subcommands='push list show apply clear drop pop create branch'
 	local subcommand="$(__git_find_on_cmdline "$subcommands save")"
-	if [ -n "$(__git_find_on_cmdline "-p")" ]; then
+	if [ -z "$subcommand" -a -n "$(__git_find_on_cmdline "-p")" ]; then
 		subcommand="push"
 	fi
 	if [ -z "$subcommand" ]; then
@@ -2666,7 +3045,7 @@ _git_submodule ()
 {
 	__git_has_doubledash && return
 
-	local subcommands="add status init deinit update set-branch summary foreach sync absorbgitdirs"
+	local subcommands="add status init deinit update set-branch set-url summary foreach sync absorbgitdirs"
 	local subcommand="$(__git_find_on_cmdline "$subcommands")"
 	if [ -z "$subcommand" ]; then
 		case "$cur" in
@@ -2730,6 +3109,7 @@ _git_svn ()
 			--log-window-size= --no-checkout --quiet
 			--repack-flags --use-log-author --localtime
 			--add-author-from
+			--recursive
 			--ignore-paths= --include-paths= $remote_opts
 			"
 		local init_opts="
@@ -2851,33 +3231,83 @@ _git_whatchanged ()
 	_git_log
 }
 
+__git_complete_worktree_paths ()
+{
+	local IFS=$'\n'
+	__gitcomp_nl "$(git worktree list --porcelain |
+		# Skip the first entry: it's the path of the main worktree,
+		# which can't be moved, removed, locked, etc.
+		sed -n -e '2,$ s/^worktree //p')"
+}
+
 _git_worktree ()
 {
 	local subcommands="add list lock move prune remove unlock"
-	local subcommand="$(__git_find_on_cmdline "$subcommands")"
-	if [ -z "$subcommand" ]; then
+	local subcommand subcommand_idx
+
+	subcommand="$(__git_find_on_cmdline --show-idx "$subcommands")"
+	subcommand_idx="${subcommand% *}"
+	subcommand="${subcommand#* }"
+
+	case "$subcommand,$cur" in
+	,*)
 		__gitcomp "$subcommands"
-	else
-		case "$subcommand,$cur" in
-		add,--*)
-			__gitcomp_builtin worktree_add
-			;;
-		list,--*)
-			__gitcomp_builtin worktree_list
-			;;
-		lock,--*)
-			__gitcomp_builtin worktree_lock
-			;;
-		prune,--*)
-			__gitcomp_builtin worktree_prune
-			;;
-		remove,--*)
-			__gitcomp "--force"
+		;;
+	*,--*)
+		__gitcomp_builtin worktree_$subcommand
+		;;
+	add,*)	# usage: git worktree add [<options>] <path> [<commit-ish>]
+		# Here we are not completing an --option, it's either the
+		# path or a ref.
+		case "$prev" in
+		-b|-B)	# Complete refs for branch to be created/reseted.
+			__git_complete_refs
 			;;
-		*)
+		-*)	# The previous word is an -o|--option without an
+			# unstuck argument: have to complete the path for
+			# the new worktree, so don't list anything, but let
+			# Bash fall back to filename completion.
+			;;
+		*)	# The previous word is not an --option, so it must
+			# be either the 'add' subcommand, the unstuck
+			# argument of an option (e.g. branch for -b|-B), or
+			# the path for the new worktree.
+			if [ $cword -eq $((subcommand_idx+1)) ]; then
+				# Right after the 'add' subcommand: have to
+				# complete the path, so fall back to Bash
+				# filename completion.
+				:
+			else
+				case "${words[cword-2]}" in
+				-b|-B)	# After '-b <branch>': have to
+					# complete the path, so fall back
+					# to Bash filename completion.
+					;;
+				*)	# After the path: have to complete
+					# the ref to be checked out.
+					__git_complete_refs
+					;;
+				esac
+			fi
 			;;
 		esac
-	fi
+		;;
+	lock,*|remove,*|unlock,*)
+		__git_complete_worktree_paths
+		;;
+	move,*)
+		if [ $cword -eq $((subcommand_idx+1)) ]; then
+			# The first parameter must be an existing working
+			# tree to be moved.
+			__git_complete_worktree_paths
+		else
+			# The second parameter is the destination: it could
+			# be any path, so don't list anything, but let Bash
+			# fall back to filename completion.
+			:
+		fi
+		;;
+	esac
 }
 
 __git_complete_common () {
@@ -2949,14 +3379,18 @@ __git_main ()
 		((c++))
 	done
 
-	if [ -z "$command" ]; then
+	if [ -z "${command-}" ]; then
 		case "$prev" in
 		--git-dir|-C|--work-tree)
 			# these need a path argument, let's fall back to
 			# Bash filename completion
 			return
 			;;
-		-c|--namespace)
+		-c)
+			__git_complete_config_variable_name_and_value
+			return
+			;;
+		--namespace)
 			# we don't support completing these options' arguments
 			return
 			;;
@@ -2980,7 +3414,7 @@ __git_main ()
 			"
 			;;
 		*)
-			if test -n "$GIT_TESTING_PORCELAIN_COMMAND_LIST"
+			if test -n "${GIT_TESTING_PORCELAIN_COMMAND_LIST-}"
 			then
 				__gitcomp "$GIT_TESTING_PORCELAIN_COMMAND_LIST"
 			else
diff --git a/third_party/git/contrib/completion/git-completion.zsh b/third_party/git/contrib/completion/git-completion.zsh
index 886bf95d1f59..ce47e86b60c0 100644
--- a/third_party/git/contrib/completion/git-completion.zsh
+++ b/third_party/git/contrib/completion/git-completion.zsh
@@ -11,8 +11,9 @@
 #
 #  zstyle ':completion:*:*:git:*' script ~/.git-completion.zsh
 #
-# The recommended way to install this script is to copy to '~/.zsh/_git', and
-# then add the following to your ~/.zshrc file:
+# The recommended way to install this script is to make a copy of it in
+# ~/.zsh/ directory as ~/.zsh/git-completion.zsh and then add the following
+# to your ~/.zshrc file:
 #
 #  fpath=(~/.zsh $fpath)
 
@@ -149,9 +150,11 @@ __git_zsh_cmd_common ()
 	push:'update remote refs along with associated objects'
 	rebase:'forward-port local commits to the updated upstream head'
 	reset:'reset current HEAD to the specified state'
+	restore:'restore working tree files'
 	rm:'remove files from the working tree and from the index'
 	show:'show various types of objects'
 	status:'show the working tree status'
+	switch:'switch branches'
 	tag:'create, list, delete or verify a tag object signed with GPG')
 	_describe -t common-commands 'common commands' list && _ret=0
 }
diff --git a/third_party/git/contrib/completion/git-prompt.sh b/third_party/git/contrib/completion/git-prompt.sh
index 1d510cd47bef..16260bab7334 100644
--- a/third_party/git/contrib/completion/git-prompt.sh
+++ b/third_party/git/contrib/completion/git-prompt.sh
@@ -70,6 +70,15 @@
 # state symbols by setting GIT_PS1_STATESEPARATOR. The default separator
 # is SP.
 #
+# When there is an in-progress operation such as a merge, rebase,
+# revert, cherry-pick, or bisect, the prompt will include information
+# related to the operation, often in the form "|<OPERATION-NAME>".
+#
+# When the repository has a sparse-checkout, a notification of the form
+# "|SPARSE" will be included in the prompt.  This can be shortened to a
+# single '?' character by setting GIT_PS1_COMPRESSSPARSESTATE, or omitted
+# by setting GIT_PS1_OMITSPARSESTATE.
+#
 # By default, __git_ps1 will compare HEAD to your SVN upstream if it can
 # find one, or @{upstream} otherwise.  Once you have set
 # GIT_PS1_SHOWUPSTREAM, you can override it on a per-repository basis by
@@ -421,6 +430,13 @@ __git_ps1 ()
 		return $exit
 	fi
 
+	local sparse=""
+	if [ -z "${GIT_PS1_COMPRESSSPARSESTATE}" ] &&
+	   [ -z "${GIT_PS1_OMITSPARSESTATE}" ] &&
+	   [ "$(git config --bool core.sparseCheckout)" = "true" ]; then
+		sparse="|SPARSE"
+	fi
+
 	local r=""
 	local b=""
 	local step=""
@@ -429,11 +445,7 @@ __git_ps1 ()
 		__git_eread "$g/rebase-merge/head-name" b
 		__git_eread "$g/rebase-merge/msgnum" step
 		__git_eread "$g/rebase-merge/end" total
-		if [ -f "$g/rebase-merge/interactive" ]; then
-			r="|REBASE-i"
-		else
-			r="|REBASE-m"
-		fi
+		r="|REBASE"
 	else
 		if [ -d "$g/rebase-apply" ]; then
 			__git_eread "$g/rebase-apply/next" step
@@ -496,6 +508,7 @@ __git_ps1 ()
 	local i=""
 	local s=""
 	local u=""
+	local h=""
 	local c=""
 	local p=""
 
@@ -528,6 +541,11 @@ __git_ps1 ()
 			u="%${ZSH_VERSION+%}"
 		fi
 
+		if [ -n "${GIT_PS1_COMPRESSSPARSESTATE}" ] &&
+		   [ "$(git config --bool core.sparseCheckout)" = "true" ]; then
+			h="?"
+		fi
+
 		if [ -n "${GIT_PS1_SHOWUPSTREAM-}" ]; then
 			__git_ps1_show_upstream
 		fi
@@ -546,8 +564,8 @@ __git_ps1 ()
 		b="\${__git_ps1_branch_name}"
 	fi
 
-	local f="$w$i$s$u"
-	local gitstring="$c$b${f:+$z$f}$r$p"
+	local f="$h$w$i$s$u"
+	local gitstring="$c$b${f:+$z$f}${sparse}$r$p"
 
 	if [ $pcmode = yes ]; then
 		if [ "${__git_printf_supports_v-}" != yes ]; then
diff --git a/third_party/git/contrib/credential/netrc/.gitignore b/third_party/git/contrib/credential/netrc/.gitignore
new file mode 100644
index 000000000000..d41cdde84b6a
--- /dev/null
+++ b/third_party/git/contrib/credential/netrc/.gitignore
@@ -0,0 +1 @@
+git-credential-netrc
diff --git a/third_party/git/contrib/credential/netrc/Makefile b/third_party/git/contrib/credential/netrc/Makefile
index 6174e3bb8382..c284fb8ac490 100644
--- a/third_party/git/contrib/credential/netrc/Makefile
+++ b/third_party/git/contrib/credential/netrc/Makefile
@@ -1,8 +1,30 @@
 # The default target of this Makefile is...
 all::
 
-test:
+SCRIPT_PERL = git-credential-netrc.perl
+GIT_ROOT_DIR = ../../..
+HERE = contrib/credential/netrc
+
+SCRIPT_PERL_FULL = $(patsubst %,$(HERE)/%,$(SCRIPT_PERL))
+
+all:: build
+
+build:
+	$(MAKE) -C $(GIT_ROOT_DIR) SCRIPT_PERL="$(SCRIPT_PERL_FULL)" \
+                build-perl-script
+
+install: build
+	$(MAKE) -C $(GIT_ROOT_DIR) SCRIPT_PERL="$(SCRIPT_PERL_FULL)" \
+                install-perl-script
+
+clean:
+	$(MAKE) -C $(GIT_ROOT_DIR) SCRIPT_PERL="$(SCRIPT_PERL_FULL)" \
+                clean-perl-script
+
+test: build
 	./t-git-credential-netrc.sh
 
-testverbose:
+testverbose: build
 	./t-git-credential-netrc.sh -d -v
+
+.PHONY: all build install clean test testverbose
diff --git a/third_party/git/contrib/credential/netrc/git-credential-netrc b/third_party/git/contrib/credential/netrc/git-credential-netrc.perl
index ebfc123ec641..bc57cc65884b 100755
--- a/third_party/git/contrib/credential/netrc/git-credential-netrc
+++ b/third_party/git/contrib/credential/netrc/git-credential-netrc.perl
@@ -423,7 +423,7 @@ sub load_config {
 	# load settings from git config
 	my $options = shift;
 	# set from command argument, gpg.program option, or default to gpg
-	$options->{'gpg'} //= Git->repository()->config('gpg.program')
+	$options->{'gpg'} //= Git::config('gpg.program')
 	                  // 'gpg';
 	log_verbose("using $options{'gpg'} for GPG operations");
 }
diff --git a/third_party/git/contrib/diff-highlight/DiffHighlight.pm b/third_party/git/contrib/diff-highlight/DiffHighlight.pm
index 7440aa1c4638..376f57773759 100644
--- a/third_party/git/contrib/diff-highlight/DiffHighlight.pm
+++ b/third_party/git/contrib/diff-highlight/DiffHighlight.pm
@@ -72,7 +72,7 @@ sub handle_line {
 	      (?:$COLOR?\|$COLOR?[ ])* # zero or more trailing "|"
 	                         [ ]*  # trailing whitespace for merges
 	    /x) {
-	        my $graph_prefix = $&;
+		my $graph_prefix = $&;
 
 		# We must flush before setting graph indent, since the
 		# new commit may be indented differently from what we
@@ -112,7 +112,7 @@ sub handle_line {
 	# Since we can receive arbitrary input, there's no optimal
 	# place to flush. Flushing on a blank line is a heuristic that
 	# happens to match git-log output.
-	if (!length) {
+	if (/^$/) {
 		$flush_cb->();
 	}
 }
diff --git a/third_party/git/contrib/fast-import/import-tars.perl b/third_party/git/contrib/fast-import/import-tars.perl
index e800d9f5c9cf..d50ce26d5d9f 100755
--- a/third_party/git/contrib/fast-import/import-tars.perl
+++ b/third_party/git/contrib/fast-import/import-tars.perl
@@ -139,6 +139,8 @@ foreach my $tar_file (@ARGV)
 			print FI "\n";
 		}
 
+		next if ($typeflag eq 'g'); # ignore global header
+
 		my $path;
 		if ($prefix) {
 			$path = "$prefix/$name";
diff --git a/third_party/git/contrib/hg-to-git/hg-to-git.py b/third_party/git/contrib/hg-to-git/hg-to-git.py
index de3f81667ed9..7eb1b24cc7a1 100755
--- a/third_party/git/contrib/hg-to-git/hg-to-git.py
+++ b/third_party/git/contrib/hg-to-git/hg-to-git.py
@@ -42,7 +42,7 @@ hgnewcsets = 0
 
 def usage():
 
-        print """\
+        print("""\
 %s: [OPTIONS] <hgprj>
 
 options:
@@ -54,7 +54,7 @@ options:
 
 required:
     hgprj:  name of the HG project to import (directory)
-""" % sys.argv[0]
+""" % sys.argv[0])
 
 #------------------------------------------------------------------------------
 
@@ -104,22 +104,22 @@ os.chdir(hgprj)
 if state:
     if os.path.exists(state):
         if verbose:
-            print 'State does exist, reading'
+            print('State does exist, reading')
         f = open(state, 'r')
         hgvers = pickle.load(f)
     else:
-        print 'State does not exist, first run'
+        print('State does not exist, first run')
 
 sock = os.popen('hg tip --template "{rev}"')
 tip = sock.read()
 if sock.close():
     sys.exit(1)
 if verbose:
-    print 'tip is', tip
+    print('tip is', tip)
 
 # Calculate the branches
 if verbose:
-    print 'analysing the branches...'
+    print('analysing the branches...')
 hgchildren["0"] = ()
 hgparents["0"] = (None, None)
 hgbranch["0"] = "master"
@@ -154,15 +154,15 @@ for cset in range(1, int(tip) + 1):
         else:
             hgbranch[str(cset)] = "branch-" + str(cset)
 
-if not hgvers.has_key("0"):
-    print 'creating repository'
+if "0" not in hgvers:
+    print('creating repository')
     os.system('git init')
 
 # loop through every hg changeset
 for cset in range(int(tip) + 1):
 
     # incremental, already seen
-    if hgvers.has_key(str(cset)):
+    if str(cset) in hgvers:
         continue
     hgnewcsets += 1
 
@@ -180,27 +180,27 @@ for cset in range(int(tip) + 1):
     os.write(fdcomment, csetcomment)
     os.close(fdcomment)
 
-    print '-----------------------------------------'
-    print 'cset:', cset
-    print 'branch:', hgbranch[str(cset)]
-    print 'user:', user
-    print 'date:', date
-    print 'comment:', csetcomment
+    print('-----------------------------------------')
+    print('cset:', cset)
+    print('branch:', hgbranch[str(cset)])
+    print('user:', user)
+    print('date:', date)
+    print('comment:', csetcomment)
     if parent:
-	print 'parent:', parent
+        print('parent:', parent)
     if mparent:
-        print 'mparent:', mparent
+        print('mparent:', mparent)
     if tag:
-        print 'tag:', tag
-    print '-----------------------------------------'
+        print('tag:', tag)
+    print('-----------------------------------------')
 
     # checkout the parent if necessary
     if cset != 0:
         if hgbranch[str(cset)] == "branch-" + str(cset):
-            print 'creating new branch', hgbranch[str(cset)]
+            print('creating new branch', hgbranch[str(cset)])
             os.system('git checkout -b %s %s' % (hgbranch[str(cset)], hgvers[parent]))
         else:
-            print 'checking out branch', hgbranch[str(cset)]
+            print('checking out branch', hgbranch[str(cset)])
             os.system('git checkout %s' % hgbranch[str(cset)])
 
     # merge
@@ -209,7 +209,7 @@ for cset in range(int(tip) + 1):
             otherbranch = hgbranch[mparent]
         else:
             otherbranch = hgbranch[parent]
-        print 'merging', otherbranch, 'into', hgbranch[str(cset)]
+        print('merging', otherbranch, 'into', hgbranch[str(cset)])
         os.system(getgitenv(user, date) + 'git merge --no-commit -s ours "" %s %s' % (hgbranch[str(cset)], otherbranch))
 
     # remove everything except .git and .hg directories
@@ -233,12 +233,12 @@ for cset in range(int(tip) + 1):
 
     # delete branch if not used anymore...
     if mparent and len(hgchildren[str(cset)]):
-        print "Deleting unused branch:", otherbranch
+        print("Deleting unused branch:", otherbranch)
         os.system('git branch -d %s' % otherbranch)
 
     # retrieve and record the version
     vvv = os.popen('git show --quiet --pretty=format:%H').read()
-    print 'record', cset, '->', vvv
+    print('record', cset, '->', vvv)
     hgvers[str(cset)] = vvv
 
 if hgnewcsets >= opt_nrepack and opt_nrepack != -1:
@@ -247,7 +247,7 @@ if hgnewcsets >= opt_nrepack and opt_nrepack != -1:
 # write the state for incrementals
 if state:
     if verbose:
-        print 'Writing state'
+        print('Writing state')
     f = open(state, 'w')
     pickle.dump(hgvers, f)
 
diff --git a/third_party/git/contrib/hooks/multimail/git_multimail.py b/third_party/git/contrib/hooks/multimail/git_multimail.py
index 8823399e7522..f563be82fc7e 100755
--- a/third_party/git/contrib/hooks/multimail/git_multimail.py
+++ b/third_party/git/contrib/hooks/multimail/git_multimail.py
@@ -95,7 +95,7 @@ if PYTHON3:
     unicode = str
 
     def write_str(f, msg):
-        # Try outputing with the default encoding. If it fails,
+        # Try outputting with the default encoding. If it fails,
         # try UTF-8.
         try:
             f.buffer.write(msg.encode(sys.getdefaultencoding()))
@@ -2129,7 +2129,7 @@ class SMTPMailer(Mailer):
                 # equivalent to
                 #     self.smtp.ehlo()
                 #     self.smtp.starttls()
-                # with acces to the ssl layer
+                # with access to the ssl layer
                 self.smtp.ehlo()
                 if not self.smtp.has_extn("starttls"):
                     raise smtplib.SMTPException("STARTTLS extension not supported by server")
@@ -2148,7 +2148,7 @@ class SMTPMailer(Mailer):
                         cert_reqs=ssl.CERT_NONE
                         )
                     self.environment.get_logger().error(
-                        '*** Warning, the server certificat is not verified (smtp) ***\n'
+                        '*** Warning, the server certificate is not verified (smtp) ***\n'
                         '***          set the option smtpCACerts                   ***\n'
                         )
                 if not hasattr(self.smtp.sock, "read"):
@@ -3189,7 +3189,7 @@ class ProjectdescEnvironmentMixin(Environment):
         self.COMPUTED_KEYS += ['projectdesc']
 
     def get_projectdesc(self):
-        """Return a one-line descripition of the project."""
+        """Return a one-line description of the project."""
 
         git_dir = get_git_dir()
         try:
diff --git a/third_party/git/contrib/hooks/multimail/post-receive.example b/third_party/git/contrib/hooks/multimail/post-receive.example
index b9bb11834e1f..0f98c5a23db1 100755
--- a/third_party/git/contrib/hooks/multimail/post-receive.example
+++ b/third_party/git/contrib/hooks/multimail/post-receive.example
@@ -56,7 +56,7 @@ config = git_multimail.Config('multimailhook')
 
 # Set some Git configuration variables. Equivalent to passing var=val
 # to "git -c var=val" each time git is called, or to adding the
-# configuration in .git/config (must come before instanciating the
+# configuration in .git/config (must come before instantiating the
 # environment) :
 #git_multimail.Config.add_config_parameters('multimailhook.commitEmailFormat=html')
 #git_multimail.Config.add_config_parameters(('user.name=foo', 'user.email=foo@example.com'))
diff --git a/third_party/git/contrib/hooks/post-receive-email b/third_party/git/contrib/hooks/post-receive-email
index 8747b84334f3..ff565eb3d881 100755
--- a/third_party/git/contrib/hooks/post-receive-email
+++ b/third_party/git/contrib/hooks/post-receive-email
@@ -329,7 +329,7 @@ generate_update_branch_email()
 	#
 	#  git rev-parse --not --all | grep -v $(git rev-parse $refname)
 	#
-	# Get's us to something pretty safe (apart from the small time
+	# Gets us to something pretty safe (apart from the small time
 	# between refname being read, and git rev-parse running - for that,
 	# I give up)
 	#
diff --git a/third_party/git/contrib/hooks/update-paranoid b/third_party/git/contrib/hooks/update-paranoid
index d18b317b2f01..0092d67b8a47 100755
--- a/third_party/git/contrib/hooks/update-paranoid
+++ b/third_party/git/contrib/hooks/update-paranoid
@@ -49,7 +49,7 @@ opcode.
 Repository sections are matched on the basename of the repository
 (after removing the .git suffix).
 
-The opcode abbrevations are:
+The opcode abbreviations are:
 
   C: create new ref
   D: delete existing ref
diff --git a/third_party/git/contrib/mw-to-git/.perlcriticrc b/third_party/git/contrib/mw-to-git/.perlcriticrc
index 158958d36357..b7333267adad 100644
--- a/third_party/git/contrib/mw-to-git/.perlcriticrc
+++ b/third_party/git/contrib/mw-to-git/.perlcriticrc
@@ -14,7 +14,7 @@
 
 # This rule states that each system call should have its return value checked
 # The problem is that it includes the print call. Checking every print call's
-# return value would be harmful to the code readabilty.
+# return value would be harmful to the code readability.
 # This configuration keeps all default function but print.
 [InputOutput::RequireCheckedSyscalls]
 functions = open say close
diff --git a/third_party/git/contrib/mw-to-git/git-mw.perl b/third_party/git/contrib/mw-to-git/git-mw.perl
index 28df3ee321ec..eb52a53d3202 100755
--- a/third_party/git/contrib/mw-to-git/git-mw.perl
+++ b/third_party/git/contrib/mw-to-git/git-mw.perl
@@ -6,7 +6,7 @@
 # License: GPL v2 or later
 
 # Set of tools for git repo with a mediawiki remote.
-# Documentation & bugtracker: https://github.com/moy/Git-Mediawiki/
+# Documentation & bugtracker: https://github.com/Git-Mediawiki/Git-Mediawiki
 
 use strict;
 use warnings;
diff --git a/third_party/git/contrib/mw-to-git/git-remote-mediawiki.perl b/third_party/git/contrib/mw-to-git/git-remote-mediawiki.perl
index af9cbc9d0f7b..a5624413dc11 100755
--- a/third_party/git/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/third_party/git/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -9,7 +9,7 @@
 # License: GPL v2 or later
 
 # Gateway between Git and MediaWiki.
-# Documentation & bugtracker: https://github.com/moy/Git-Mediawiki/
+# Documentation & bugtracker: https://github.com/Git-Mediawiki/Git-Mediawiki
 
 use strict;
 use MediaWiki::API;
@@ -56,38 +56,38 @@ my $url = $ARGV[1];
 
 # Accept both space-separated and multiple keys in config file.
 # Spaces should be written as _ anyway because we'll use chomp.
-my @tracked_pages = split(/[ \n]/, run_git("config --get-all remote.${remotename}.pages"));
+my @tracked_pages = split(/[ \n]/, run_git_quoted(["config", "--get-all", "remote.${remotename}.pages"]));
 chomp(@tracked_pages);
 
 # Just like @tracked_pages, but for MediaWiki categories.
-my @tracked_categories = split(/[ \n]/, run_git("config --get-all remote.${remotename}.categories"));
+my @tracked_categories = split(/[ \n]/, run_git_quoted(["config", "--get-all", "remote.${remotename}.categories"]));
 chomp(@tracked_categories);
 
 # Just like @tracked_categories, but for MediaWiki namespaces.
-my @tracked_namespaces = split(/[ \n]/, run_git("config --get-all remote.${remotename}.namespaces"));
+my @tracked_namespaces = split(/[ \n]/, run_git_quoted(["config", "--get-all", "remote.${remotename}.namespaces"]));
 for (@tracked_namespaces) { s/_/ /g; }
 chomp(@tracked_namespaces);
 
 # Import media files on pull
-my $import_media = run_git("config --get --bool remote.${remotename}.mediaimport");
+my $import_media = run_git_quoted(["config", "--get", "--bool", "remote.${remotename}.mediaimport"]);
 chomp($import_media);
 $import_media = ($import_media eq 'true');
 
 # Export media files on push
-my $export_media = run_git("config --get --bool remote.${remotename}.mediaexport");
+my $export_media = run_git_quoted(["config", "--get", "--bool", "remote.${remotename}.mediaexport"]);
 chomp($export_media);
 $export_media = !($export_media eq 'false');
 
-my $wiki_login = run_git("config --get remote.${remotename}.mwLogin");
-# Note: mwPassword is discourraged. Use the credential system instead.
-my $wiki_passwd = run_git("config --get remote.${remotename}.mwPassword");
-my $wiki_domain = run_git("config --get remote.${remotename}.mwDomain");
+my $wiki_login = run_git_quoted(["config", "--get", "remote.${remotename}.mwLogin"]);
+# Note: mwPassword is discouraged. Use the credential system instead.
+my $wiki_passwd = run_git_quoted(["config", "--get", "remote.${remotename}.mwPassword"]);
+my $wiki_domain = run_git_quoted(["config", "--get", "remote.${remotename}.mwDomain"]);
 chomp($wiki_login);
 chomp($wiki_passwd);
 chomp($wiki_domain);
 
 # Import only last revisions (both for clone and fetch)
-my $shallow_import = run_git("config --get --bool remote.${remotename}.shallow");
+my $shallow_import = run_git_quoted(["config", "--get", "--bool", "remote.${remotename}.shallow"]);
 chomp($shallow_import);
 $shallow_import = ($shallow_import eq 'true');
 
@@ -97,9 +97,9 @@ $shallow_import = ($shallow_import eq 'true');
 # Possible values:
 # - by_rev: perform one query per new revision on the remote wiki
 # - by_page: query each tracked page for new revision
-my $fetch_strategy = run_git("config --get remote.${remotename}.fetchStrategy");
+my $fetch_strategy = run_git_quoted(["config", "--get", "remote.${remotename}.fetchStrategy"]);
 if (!$fetch_strategy) {
-	$fetch_strategy = run_git('config --get mediawiki.fetchStrategy');
+	$fetch_strategy = run_git_quoted(["config", "--get", "mediawiki.fetchStrategy"]);
 }
 chomp($fetch_strategy);
 if (!$fetch_strategy) {
@@ -123,9 +123,9 @@ my %basetimestamps;
 # will get the history with information lost). If the import is
 # deterministic, this means everybody gets the same sha1 for each
 # MediaWiki revision.
-my $dumb_push = run_git("config --get --bool remote.${remotename}.dumbPush");
+my $dumb_push = run_git_quoted(["config", "--get", "--bool", "remote.${remotename}.dumbPush"]);
 if (!$dumb_push) {
-	$dumb_push = run_git('config --get --bool mediawiki.dumbPush');
+	$dumb_push = run_git_quoted(["config", "--get", "--bool", "mediawiki.dumbPush"]);
 }
 chomp($dumb_push);
 $dumb_push = ($dumb_push eq 'true');
@@ -369,12 +369,14 @@ sub get_mw_pages {
 	return %pages;
 }
 
-# usage: $out = run_git("command args");
-#        $out = run_git("command args", "raw"); # don't interpret output as UTF-8.
-sub run_git {
+# usage: $out = run_git_quoted(["command", "args", ...]);
+#        $out = run_git_quoted(["command", "args", ...], "raw"); # don't interpret output as UTF-8.
+#        $out = run_git_quoted_nostderr(["command", "args", ...]); # discard stderr
+#        $out = run_git_quoted_nostderr(["command", "args", ...], "raw"); # ditto but raw instead of UTF-8 as above
+sub _run_git {
 	my $args = shift;
 	my $encoding = (shift || 'encoding(UTF-8)');
-	open(my $git, "-|:${encoding}", "git ${args}")
+	open(my $git, "-|:${encoding}", @$args)
 	    or die "Unable to fork: $!\n";
 	my $res = do {
 		local $/ = undef;
@@ -385,6 +387,13 @@ sub run_git {
 	return $res;
 }
 
+sub run_git_quoted {
+    _run_git(["git", @{$_[0]}], $_[1]);
+}
+
+sub run_git_quoted_nostderr {
+    _run_git(['sh', '-c', 'git "$@" 2>/dev/null', '--', @{$_[0]}], $_[1]);
+}
 
 sub get_all_mediafiles {
 	my $pages = shift;
@@ -511,8 +520,9 @@ sub download_mw_mediafile {
 }
 
 sub get_last_local_revision {
-	# Get note regarding last mediawiki revision
-	my $note = run_git("notes --ref=${remotename}/mediawiki show refs/mediawiki/${remotename}/master 2>/dev/null");
+	# Get note regarding last mediawiki revision.
+	my $note = run_git_quoted_nostderr(["notes", "--ref=${remotename}/mediawiki",
+					    "show", "refs/mediawiki/${remotename}/master"]);
 	my @note_info = split(/ /, $note);
 
 	my $lastrevision_number;
@@ -807,7 +817,10 @@ sub get_more_refs {
 sub mw_import {
 	# multiple import commands can follow each other.
 	my @refs = (shift, get_more_refs('import'));
+	my $processedRefs;
 	foreach my $ref (@refs) {
+		next if $processedRefs->{$ref}; # skip duplicates: "import refs/heads/master" being issued twice; TODO: why?
+		$processedRefs->{$ref} = 1;
 		mw_import_ref($ref);
 	}
 	print {*STDOUT} "done\n";
@@ -970,7 +983,7 @@ sub mw_import_revids {
 }
 
 sub error_non_fast_forward {
-	my $advice = run_git('config --bool advice.pushNonFastForward');
+	my $advice = run_git_quoted(["config", "--bool", "advice.pushNonFastForward"]);
 	chomp($advice);
 	if ($advice ne 'false') {
 		# Native git-push would show this after the summary.
@@ -1014,7 +1027,7 @@ sub mw_upload_file {
 		}
 	} else {
 		# Don't let perl try to interpret file content as UTF-8 => use "raw"
-		my $content = run_git("cat-file blob ${new_sha1}", 'raw');
+		my $content = run_git_quoted(["cat-file", "blob", $new_sha1], 'raw');
 		if ($content ne EMPTY) {
 			$mediawiki = connect_maybe($mediawiki, $remotename, $url);
 			$mediawiki->{config}->{upload_url} =
@@ -1084,7 +1097,7 @@ sub mw_push_file {
 			# with this content instead:
 			$file_content = DELETED_CONTENT;
 		} else {
-			$file_content = run_git("cat-file blob ${new_sha1}");
+			$file_content = run_git_quoted(["cat-file", "blob", $new_sha1]);
 		}
 
 		$mediawiki = connect_maybe($mediawiki, $remotename, $url);
@@ -1174,10 +1187,10 @@ sub mw_push_revision {
 	my $mw_revision = $last_remote_revid;
 
 	# Get sha1 of commit pointed by local HEAD
-	my $HEAD_sha1 = run_git("rev-parse ${local} 2>/dev/null");
+	my $HEAD_sha1 = run_git_quoted_nostderr(["rev-parse", $local]);
 	chomp($HEAD_sha1);
 	# Get sha1 of commit pointed by remotes/$remotename/master
-	my $remoteorigin_sha1 = run_git("rev-parse refs/remotes/${remotename}/master 2>/dev/null");
+	my $remoteorigin_sha1 = run_git_quoted_nostderr(["rev-parse", "refs/remotes/${remotename}/master"]);
 	chomp($remoteorigin_sha1);
 
 	if ($last_local_revid > 0 &&
@@ -1197,7 +1210,7 @@ sub mw_push_revision {
 		my $parsed_sha1 = $remoteorigin_sha1;
 		# Find a path from last MediaWiki commit to pushed commit
 		print {*STDERR} "Computing path from local to remote ...\n";
-		my @local_ancestry = split(/\n/, run_git("rev-list --boundary --parents ${local} ^${parsed_sha1}"));
+		my @local_ancestry = split(/\n/, run_git_quoted(["rev-list", "--boundary", "--parents", $local, "^${parsed_sha1}"]));
 		my %local_ancestry;
 		foreach my $line (@local_ancestry) {
 			if (my ($child, $parents) = $line =~ /^-?([a-f0-9]+) ([a-f0-9 ]+)/) {
@@ -1221,7 +1234,7 @@ sub mw_push_revision {
 		# No remote mediawiki revision. Export the whole
 		# history (linearized with --first-parent)
 		print {*STDERR} "Warning: no common ancestor, pushing complete history\n";
-		my $history = run_git("rev-list --first-parent --children ${local}");
+		my $history = run_git_quoted(["rev-list", "--first-parent", "--children", $local]);
 		my @history = split(/\n/, $history);
 		@history = @history[1..$#history];
 		foreach my $line (reverse @history) {
@@ -1233,12 +1246,12 @@ sub mw_push_revision {
 	foreach my $commit_info_split (@commit_pairs) {
 		my $sha1_child = @{$commit_info_split}[0];
 		my $sha1_commit = @{$commit_info_split}[1];
-		my $diff_infos = run_git("diff-tree -r --raw -z ${sha1_child} ${sha1_commit}");
+		my $diff_infos = run_git_quoted(["diff-tree", "-r", "--raw", "-z", $sha1_child, $sha1_commit]);
 		# TODO: we could detect rename, and encode them with a #redirect on the wiki.
 		# TODO: for now, it's just a delete+add
 		my @diff_info_list = split(/\0/, $diff_infos);
 		# Keep the subject line of the commit message as mediawiki comment for the revision
-		my $commit_msg = run_git(qq(log --no-walk --format="%s" ${sha1_commit}));
+		my $commit_msg = run_git_quoted(["log", "--no-walk", '--format="%s"', $sha1_commit]);
 		chomp($commit_msg);
 		# Push every blob
 		while (@diff_info_list) {
@@ -1263,7 +1276,10 @@ sub mw_push_revision {
 			}
 		}
 		if (!$dumb_push) {
-			run_git(qq(notes --ref=${remotename}/mediawiki add -f -m "mediawiki_revision: ${mw_revision}" ${sha1_commit}));
+			run_git_quoted(["notes", "--ref=${remotename}/mediawiki",
+					"add", "-f", "-m",
+					"mediawiki_revision: ${mw_revision}",
+					$sha1_commit]);
 		}
 	}
 
@@ -1304,7 +1320,7 @@ sub get_mw_namespace_id {
 		# already cached. Namespaces are stored in form:
 		# "Name_of_namespace:Id_namespace", ex.: "File:6".
 		my @temp = split(/\n/,
-				 run_git("config --get-all remote.${remotename}.namespaceCache"));
+				 run_git_quoted(["config", "--get-all", "remote.${remotename}.namespaceCache"]));
 		chomp(@temp);
 		foreach my $ns (@temp) {
 			my ($n, $id) = split(/:/, $ns);
@@ -1358,7 +1374,7 @@ sub get_mw_namespace_id {
 
 	# Store explicitly requested namespaces on disk
 	if (!exists $cached_mw_namespace_id{$name}) {
-		run_git(qq(config --add remote.${remotename}.namespaceCache "${name}:${store_id}"));
+		run_git_quoted(["config", "--add", "remote.${remotename}.namespaceCache", "${name}:${store_id}"]);
 		$cached_mw_namespace_id{$name} = 1;
 	}
 	return $id;
diff --git a/third_party/git/contrib/mw-to-git/git-remote-mediawiki.txt b/third_party/git/contrib/mw-to-git/git-remote-mediawiki.txt
index 23b7ef9f6208..5da825f61e20 100644
--- a/third_party/git/contrib/mw-to-git/git-remote-mediawiki.txt
+++ b/third_party/git/contrib/mw-to-git/git-remote-mediawiki.txt
@@ -4,4 +4,4 @@ objects from mediawiki just as one would do with a classic git
 repository thanks to remote-helpers.
 
 For more information, visit the wiki at
-https://github.com/moy/Git-Mediawiki/wiki
+https://github.com/Git-Mediawiki/Git-Mediawiki
diff --git a/third_party/git/contrib/mw-to-git/t/.gitignore b/third_party/git/contrib/mw-to-git/t/.gitignore
index a7a40b49644f..2b8dc30c6db1 100644
--- a/third_party/git/contrib/mw-to-git/t/.gitignore
+++ b/third_party/git/contrib/mw-to-git/t/.gitignore
@@ -1,4 +1,4 @@
 WEB/
-wiki/
+mediawiki/
 trash directory.t*/
 test-results/
diff --git a/third_party/git/contrib/mw-to-git/t/README b/third_party/git/contrib/mw-to-git/t/README
index 2ee34be7e491..72c4889db7ae 100644
--- a/third_party/git/contrib/mw-to-git/t/README
+++ b/third_party/git/contrib/mw-to-git/t/README
@@ -14,11 +14,11 @@ install the following packages (Debian/Ubuntu names, may need to be
 adapted for another distribution):
 
 * lighttpd
-* php5
-* php5-cgi
-* php5-cli
-* php5-curl
-* php5-sqlite
+* php
+* php-cgi
+* php-cli
+* php-curl
+* php-sqlite
 
 Principles and Technical Choices
 --------------------------------
diff --git a/third_party/git/contrib/mw-to-git/t/install-wiki/.gitignore b/third_party/git/contrib/mw-to-git/t/install-wiki/.gitignore
deleted file mode 100644
index b5a2a4408c59..000000000000
--- a/third_party/git/contrib/mw-to-git/t/install-wiki/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-wikidb.sqlite
diff --git a/third_party/git/contrib/mw-to-git/t/install-wiki/LocalSettings.php b/third_party/git/contrib/mw-to-git/t/install-wiki/LocalSettings.php
deleted file mode 100644
index 745e47e88173..000000000000
--- a/third_party/git/contrib/mw-to-git/t/install-wiki/LocalSettings.php
+++ /dev/null
@@ -1,129 +0,0 @@
-<?php
-# This file was automatically generated by the MediaWiki 1.19.0
-# installer. If you make manual changes, please keep track in case you
-# need to recreate them later.
-#
-# See includes/DefaultSettings.php for all configurable settings
-# and their default values, but don't forget to make changes in _this_
-# file, not there.
-#
-# Further documentation for configuration settings may be found at:
-# http://www.mediawiki.org/wiki/Manual:Configuration_settings
-
-# Protect against web entry
-if ( !defined( 'MEDIAWIKI' ) ) {
-	exit;
-}
-
-## Uncomment this to disable output compression
-# $wgDisableOutputCompression = true;
-
-$wgSitename      = "Git-MediaWiki-Test";
-$wgMetaNamespace = "Git-MediaWiki-Test";
-
-## The URL base path to the directory containing the wiki;
-## defaults for all runtime URL paths are based off of this.
-## For more information on customizing the URLs please see:
-## http://www.mediawiki.org/wiki/Manual:Short_URL
-$wgScriptPath       = "@WG_SCRIPT_PATH@";
-$wgScriptExtension  = ".php";
-
-## The protocol and server name to use in fully-qualified URLs
-$wgServer           = "@WG_SERVER@";
-
-## The relative URL path to the skins directory
-$wgStylePath        = "$wgScriptPath/skins";
-
-## The relative URL path to the logo.  Make sure you change this from the default,
-## or else you'll overwrite your logo when you upgrade!
-$wgLogo             = "$wgStylePath/common/images/wiki.png";
-
-## UPO means: this is also a user preference option
-
-$wgEnableEmail      = true;
-$wgEnableUserEmail  = true; # UPO
-
-$wgEmergencyContact = "apache@localhost";
-$wgPasswordSender   = "apache@localhost";
-
-$wgEnotifUserTalk      = false; # UPO
-$wgEnotifWatchlist     = false; # UPO
-$wgEmailAuthentication = true;
-
-## Database settings
-$wgDBtype           = "sqlite";
-$wgDBserver         = "";
-$wgDBname           = "@WG_SQLITE_DATAFILE@";
-$wgDBuser           = "";
-$wgDBpassword       = "";
-
-# SQLite-specific settings
-$wgSQLiteDataDir    = "@WG_SQLITE_DATADIR@";
-
-
-## Shared memory settings
-$wgMainCacheType    = CACHE_NONE;
-$wgMemCachedServers = array();
-
-## To enable image uploads, make sure the 'images' directory
-## is writable, then set this to true:
-$wgEnableUploads  = true;
-$wgUseImageMagick = true;
-$wgImageMagickConvertCommand ="@CONVERT@";
-$wgFileExtensions[] = 'txt';
-
-# InstantCommons allows wiki to use images from http://commons.wikimedia.org
-$wgUseInstantCommons  = false;
-
-## If you use ImageMagick (or any other shell command) on a
-## Linux server, this will need to be set to the name of an
-## available UTF-8 locale
-$wgShellLocale = "en_US.utf8";
-
-## If you want to use image uploads under safe mode,
-## create the directories images/archive, images/thumb and
-## images/temp, and make them all writable. Then uncomment
-## this, if it's not already uncommented:
-#$wgHashedUploadDirectory = false;
-
-## Set $wgCacheDirectory to a writable directory on the web server
-## to make your wiki go slightly faster. The directory should not
-## be publicly accessible from the web.
-#$wgCacheDirectory = "$IP/cache";
-
-# Site language code, should be one of the list in ./languages/Names.php
-$wgLanguageCode = "en";
-
-$wgSecretKey = "1c912bfe3519fb70f5dc523ecc698111cd43d81a11c585b3eefb28f29c2699b7";
-#$wgSecretKey = "@SECRETKEY@";
-
-
-# Site upgrade key. Must be set to a string (default provided) to turn on the
-# web installer while LocalSettings.php is in place
-$wgUpgradeKey = "ddae7dc87cd0a645";
-
-## Default skin: you can change the default skin. Use the internal symbolic
-## names, ie 'standard', 'nostalgia', 'cologneblue', 'monobook', 'vector':
-$wgDefaultSkin = "vector";
-
-## For attaching licensing metadata to pages, and displaying an
-## appropriate copyright notice / icon. GNU Free Documentation
-## License and Creative Commons licenses are supported so far.
-$wgRightsPage = ""; # Set to the title of a wiki page that describes your license/copyright
-$wgRightsUrl  = "";
-$wgRightsText = "";
-$wgRightsIcon = "";
-
-# Path to the GNU diff3 utility. Used for conflict resolution.
-$wgDiff3 = "/usr/bin/diff3";
-
-# Query string length limit for ResourceLoader. You should only set this if
-# your web server has a query string length limit (then set it to that limit),
-# or if you have suhosin.get.max_value_length set in php.ini (then set it to
-# that value)
-$wgResourceLoaderMaxQueryLength = -1;
-
-
-
-# End of automatically generated settings.
-# Add more configuration options below.
diff --git a/third_party/git/contrib/mw-to-git/t/install-wiki/db_install.php b/third_party/git/contrib/mw-to-git/t/install-wiki/db_install.php
deleted file mode 100644
index 0f3f4e018a05..000000000000
--- a/third_party/git/contrib/mw-to-git/t/install-wiki/db_install.php
+++ /dev/null
@@ -1,120 +0,0 @@
-<?php
-/**
- * This script generates a SQLite database for a MediaWiki version 1.19.0
- * You must specify the login of the admin (argument 1) and its
- * password (argument 2) and the folder where the database file
- * is located (absolute path in argument 3).
- * It is used by the script install-wiki.sh in order to make easy the
- * installation of a MediaWiki.
- *
- * In order to generate a SQLite database file, MediaWiki ask the user
- * to submit some forms in its web browser. This script simulates this
- * behavior though the functions <get> and <submit>
- *
- */
-$argc = $_SERVER['argc'];
-$argv = $_SERVER['argv'];
-
-$login = $argv[2];
-$pass = $argv[3];
-$tmp = $argv[4];
-$port = $argv[5];
-
-$url = 'http://localhost:'.$port.'/wiki/mw-config/index.php';
-$db_dir = urlencode($tmp);
-$tmp_cookie = tempnam($tmp, "COOKIE_");
-/*
- * Fetchs a page with cURL.
- */
-function get($page_name = "") {
-	$curl = curl_init();
-	$page_name_add = "";
-	if ($page_name != "") {
-		$page_name_add = '?page='.$page_name;
-	}
-	$url = $GLOBALS['url'].$page_name_add;
-	$tmp_cookie = $GLOBALS['tmp_cookie'];
-	curl_setopt($curl, CURLOPT_COOKIEJAR, $tmp_cookie);
-	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
-	curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
-	curl_setopt($curl, CURLOPT_COOKIEFILE, $tmp_cookie);
-	curl_setopt($curl, CURLOPT_HEADER, true);
-	curl_setopt($curl, CURLOPT_URL, $url);
-
-	$page = curl_exec($curl);
-	if (!$page) {
-		die("Could not get page: $url\n");
-	}
-	curl_close($curl);
-	return $page;
-}
-
-/*
- * Submits a form with cURL.
- */
-function submit($page_name, $option = "") {
-	$curl = curl_init();
-	$datapost = 'submit-continue=Continue+%E2%86%92';
-	if ($option != "") {
-		$datapost = $option.'&'.$datapost;
-	}
-	$url = $GLOBALS['url'].'?page='.$page_name;
-	$tmp_cookie = $GLOBALS['tmp_cookie'];
-	curl_setopt($curl, CURLOPT_URL, $url);
-	curl_setopt($curl, CURLOPT_POST, true);
-	curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
-	curl_setopt($curl, CURLOPT_POSTFIELDS, $datapost);
-	curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
-	curl_setopt($curl, CURLOPT_COOKIEJAR, $tmp_cookie);
-	curl_setopt($curl, CURLOPT_COOKIEFILE, $tmp_cookie);
-
-	$page = curl_exec($curl);
-	if (!$page) {
-		die("Could not get page: $url\n");
-	}
-	curl_close($curl);
-	return "$page";
-}
-
-/*
- * Here starts this script: simulates the behavior of the user
- * submitting forms to generates the database file.
- * Note this simulation was made for the MediaWiki version 1.19.0,
- * we can't assume it works with other versions.
- *
- */
-
-$page = get();
-if (!preg_match('/input type="hidden" value="([0-9]+)" name="LanguageRequestTime"/',
-		$page, $matches)) {
-	echo "Unexpected content for page downloaded:\n";
-	echo "$page";
-	die;
-};
-$timestamp = $matches[1];
-$language = "LanguageRequestTime=$timestamp&uselang=en&ContLang=en";
-$page = submit('Language', $language);
-
-submit('Welcome');
-
-$db_config = 'DBType=sqlite';
-$db_config = $db_config.'&sqlite_wgSQLiteDataDir='.$db_dir;
-$db_config = $db_config.'&sqlite_wgDBname='.$argv[1];
-submit('DBConnect', $db_config);
-
-$wiki_config = 'config_wgSitename=TEST';
-$wiki_config = $wiki_config.'&config__NamespaceType=site-name';
-$wiki_config = $wiki_config.'&config_wgMetaNamespace=MyWiki';
-$wiki_config = $wiki_config.'&config__AdminName='.$login;
-
-$wiki_config = $wiki_config.'&config__AdminPassword='.$pass;
-$wiki_config = $wiki_config.'&config__AdminPassword2='.$pass;
-
-$wiki_config = $wiki_config.'&wiki__configEmail=email%40email.org';
-$wiki_config = $wiki_config.'&config__SkipOptional=skip';
-submit('Name', $wiki_config);
-submit('Install');
-submit('Install');
-
-unlink($tmp_cookie);
-?>
diff --git a/third_party/git/contrib/mw-to-git/t/t9360-mw-to-git-clone.sh b/third_party/git/contrib/mw-to-git/t/t9360-mw-to-git-clone.sh
index cfbfe7ddf622..4c39bda7bf4d 100755
--- a/third_party/git/contrib/mw-to-git/t/t9360-mw-to-git-clone.sh
+++ b/third_party/git/contrib/mw-to-git/t/t9360-mw-to-git-clone.sh
@@ -28,7 +28,7 @@ test_expect_success 'Git clone creates the expected git log with one file' '
 		git log --format=%s HEAD^..HEAD >log.tmp
 	) &&
 	echo "this must be the same" >msg.tmp &&
-	diff -b mw_dir_1/log.tmp msg.tmp
+	test_cmp msg.tmp mw_dir_1/log.tmp
 '
 
 
@@ -50,8 +50,8 @@ test_expect_success 'Git clone creates the expected git log with multiple files'
 	echo "this must be the same" >>msgDaddy.tmp &&
 	echo "identical too" >msgDj.tmp &&
 	echo "identical" >>msgDj.tmp &&
-	diff -b mw_dir_2/logDaddy.tmp msgDaddy.tmp &&
-	diff -b mw_dir_2/logDj.tmp msgDj.tmp
+	test_cmp msgDaddy.tmp mw_dir_2/logDaddy.tmp &&
+	test_cmp msgDj.tmp mw_dir_2/logDj.tmp
 '
 
 
@@ -135,7 +135,7 @@ test_expect_success 'Git clone works with one specific page cloned ' '
 		cd mw_dir_8 &&
 		echo "this log must stay" >msg.tmp &&
 		git log --format=%s >log.tmp &&
-		diff -b msg.tmp log.tmp
+		test_cmp msg.tmp log.tmp
 	) &&
 	wiki_check_content mw_dir_8/Namnam.mw Namnam
 '
@@ -143,7 +143,7 @@ test_expect_success 'Git clone works with one specific page cloned ' '
 test_expect_success 'Git clone works with multiple specific page cloned ' '
 	wiki_reset &&
 	wiki_editpage foo "I will be there" false &&
-	wiki_editpage bar "I will not disapear" false &&
+	wiki_editpage bar "I will not disappear" false &&
 	wiki_editpage namnam "I be erased" false &&
 	wiki_editpage nyancat "nyan nyan nyan you will not erase me" false &&
 	wiki_delete_page namnam &&
diff --git a/third_party/git/contrib/mw-to-git/t/t9363-mw-to-git-export-import.sh b/third_party/git/contrib/mw-to-git/t/t9363-mw-to-git-export-import.sh
index 3ff3a095670e..6187ec67faaa 100755
--- a/third_party/git/contrib/mw-to-git/t/t9363-mw-to-git-export-import.sh
+++ b/third_party/git/contrib/mw-to-git/t/t9363-mw-to-git-export-import.sh
@@ -27,12 +27,12 @@ test_git_reimport () {
 
 # Don't bother with permissions, be administrator by default
 test_expect_success 'setup config' '
-	git config --global remote.origin.mwLogin WikiAdmin &&
-	git config --global remote.origin.mwPassword AdminPass &&
+	git config --global remote.origin.mwLogin "$WIKI_ADMIN" &&
+	git config --global remote.origin.mwPassword "$WIKI_PASSW" &&
 	test_might_fail git config --global --unset remote.origin.mediaImport
 '
 
-test_expect_success 'git push can upload media (File:) files' '
+test_expect_failure 'git push can upload media (File:) files' '
 	wiki_reset &&
 	git clone mediawiki::'"$WIKI_URL"' mw_dir &&
 	(
@@ -48,13 +48,14 @@ test_expect_success 'git push can upload media (File:) files' '
 	)
 '
 
-test_expect_success 'git clone works on previously created wiki with media files' '
+test_expect_failure 'git clone works on previously created wiki with media files' '
 	test_when_finished "rm -rf mw_dir mw_dir_clone" &&
 	git clone -c remote.origin.mediaimport=true \
 		mediawiki::'"$WIKI_URL"' mw_dir_clone &&
 	test_cmp mw_dir_clone/Foo.txt mw_dir/Foo.txt &&
 	(cd mw_dir_clone && git checkout HEAD^) &&
 	(cd mw_dir && git checkout HEAD^) &&
+	test_path_is_file mw_dir_clone/Foo.txt &&
 	test_cmp mw_dir_clone/Foo.txt mw_dir/Foo.txt
 '
 
diff --git a/third_party/git/contrib/mw-to-git/t/test-gitmw-lib.sh b/third_party/git/contrib/mw-to-git/t/test-gitmw-lib.sh
index 6546294f159e..64e46c16716f 100755
--- a/third_party/git/contrib/mw-to-git/t/test-gitmw-lib.sh
+++ b/third_party/git/contrib/mw-to-git/t/test-gitmw-lib.sh
@@ -13,7 +13,8 @@
 
 . ./test.config
 
-WIKI_URL=http://"$SERVER_ADDR:$PORT/$WIKI_DIR_NAME"
+WIKI_BASE_URL=http://$SERVER_ADDR:$PORT
+WIKI_URL=$WIKI_BASE_URL/$WIKI_DIR_NAME
 CURR_DIR=$(pwd)
 TEST_OUTPUT_DIRECTORY=$(pwd)
 TEST_DIRECTORY="$CURR_DIR"/../../../t
@@ -65,7 +66,7 @@ test_check_precond () {
 	GIT_EXEC_PATH=$(cd "$(dirname "$0")" && cd "../.." && pwd)
 	PATH="$GIT_EXEC_PATH"'/bin-wrapper:'"$PATH"
 
-	if [ ! -d "$WIKI_DIR_INST/$WIKI_DIR_NAME" ];
+	if ! test -d "$WIKI_DIR_INST/$WIKI_DIR_NAME"
 	then
 		skip_all='skipping gateway git-mw tests, no mediawiki found'
 		test_done
@@ -279,7 +280,7 @@ start_lighttpd () {
 	"$LIGHTTPD_DIR"/lighttpd -f "$WEB"/lighttpd.conf
 
 	if test $? -ne 0 ; then
-		echo "Could not execute http deamon lighttpd"
+		echo "Could not execute http daemon lighttpd"
 		exit 1
 	fi
 }
@@ -291,27 +292,59 @@ stop_lighttpd () {
 	test -f "$WEB_TMP/pid" && kill $(cat "$WEB_TMP/pid")
 }
 
-# Create the SQLite database of the MediaWiki. If the database file already
-# exists, it will be deleted.
-# This script should be runned from the directory where $FILES_FOLDER is
-# located.
-create_db () {
-	rm -f "$TMP/$DB_FILE"
-
-	echo "Generating the SQLite database file. It can take some time ..."
-	# Run the php script to generate the SQLite database file
-	# with cURL calls.
-	php "$FILES_FOLDER/$DB_INSTALL_SCRIPT" $(basename "$DB_FILE" .sqlite) \
-		"$WIKI_ADMIN" "$WIKI_PASSW" "$TMP" "$PORT"
-
-	if [ ! -f "$TMP/$DB_FILE" ] ; then
-		error "Can't create database file $TMP/$DB_FILE. Try to run ./install-wiki.sh delete first."
+wiki_delete_db () {
+	rm -rf \
+	   "$FILES_FOLDER_DB"/* || error "Couldn't delete $FILES_FOLDER_DB/"
+}
+
+wiki_delete_db_backup () {
+	rm -rf \
+	   "$FILES_FOLDER_POST_INSTALL_DB"/* || error "Couldn't delete $FILES_FOLDER_POST_INSTALL_DB/"
+}
+
+# Install MediaWiki using its install.php script. If the database file
+# already exists, it will be deleted.
+install_mediawiki () {
+
+	localsettings="$WIKI_DIR_INST/$WIKI_DIR_NAME/LocalSettings.php"
+	if test -f "$localsettings"
+	then
+		error "We already installed the wiki, since $localsettings exists" \
+		      "perhaps you wanted to run 'delete' first?"
 	fi
 
-	# Copy the generated database file into the directory the
-	# user indicated.
-	cp "$TMP/$DB_FILE" "$FILES_FOLDER" ||
-		error "Unable to copy $TMP/$DB_FILE to $FILES_FOLDER"
+	wiki_delete_db
+	wiki_delete_db_backup
+	mkdir \
+		"$FILES_FOLDER_DB/" \
+		"$FILES_FOLDER_POST_INSTALL_DB/"
+
+	install_script="$WIKI_DIR_INST/$WIKI_DIR_NAME/maintenance/install.php"
+	echo "Installing MediaWiki using $install_script. This may take some time ..."
+
+	php "$WIKI_DIR_INST/$WIKI_DIR_NAME/maintenance/install.php" \
+	    --server $WIKI_BASE_URL \
+	    --scriptpath /wiki \
+	    --lang en \
+	    --dbtype sqlite \
+	    --dbpath $PWD/$FILES_FOLDER_DB/ \
+	    --pass "$WIKI_PASSW" \
+	    Git-MediaWiki-Test \
+	    "$WIKI_ADMIN" ||
+		error "Couldn't run $install_script, see errors above. Try to run ./install-wiki.sh delete first."
+	cat <<-'EOF' >>$localsettings
+# Custom settings added by test-gitmw-lib.sh
+#
+# Uploading text files is needed for
+# t9363-mw-to-git-export-import.sh
+$wgEnableUploads = true;
+$wgFileExtensions[] = 'txt';
+EOF
+
+	# Copy the initially generated database file into our backup
+	# folder
+	cp -R "$FILES_FOLDER_DB/"* "$FILES_FOLDER_POST_INSTALL_DB/" ||
+		error "Unable to copy $FILES_FOLDER_DB/* to $FILES_FOLDER_POST_INSTALL_DB/*"
 }
 
 # Install a wiki in your web server directory.
@@ -320,30 +353,33 @@ wiki_install () {
 		start_lighttpd
 	fi
 
-	SERVER_ADDR=$SERVER_ADDR:$PORT
 	# In this part, we change directory to $TMP in order to download,
 	# unpack and copy the files of MediaWiki
 	(
 	mkdir -p "$WIKI_DIR_INST/$WIKI_DIR_NAME"
-	if [ ! -d "$WIKI_DIR_INST/$WIKI_DIR_NAME" ] ; then
+	if ! test -d "$WIKI_DIR_INST/$WIKI_DIR_NAME"
+	then
 		error "Folder $WIKI_DIR_INST/$WIKI_DIR_NAME doesn't exist.
 		Please create it and launch the script again."
 	fi
 
-	# Fetch MediaWiki's archive if not already present in the TMP directory
+	# Fetch MediaWiki's archive if not already present in the
+	# download directory
+	mkdir -p "$FILES_FOLDER_DOWNLOAD"
 	MW_FILENAME="mediawiki-$MW_VERSION_MAJOR.$MW_VERSION_MINOR.tar.gz"
-	cd "$TMP"
-	if [ ! -f $MW_FILENAME ] ; then
+	cd "$FILES_FOLDER_DOWNLOAD"
+	if ! test -f $MW_FILENAME
+	then
 		echo "Downloading $MW_VERSION_MAJOR.$MW_VERSION_MINOR sources ..."
 		wget "http://download.wikimedia.org/mediawiki/$MW_VERSION_MAJOR/$MW_FILENAME" ||
 			error "Unable to download "\
 			"http://download.wikimedia.org/mediawiki/$MW_VERSION_MAJOR/"\
 			"$MW_FILENAME. "\
 			"Please fix your connection and launch the script again."
-		echo "$MW_FILENAME downloaded in $(pwd). "\
-			"You can delete it later if you want."
+		echo "$MW_FILENAME downloaded in $(pwd)/;" \
+		     "you can delete it later if you want."
 	else
-		echo "Reusing existing $MW_FILENAME downloaded in $(pwd)."
+		echo "Reusing existing $MW_FILENAME downloaded in $(pwd)/"
 	fi
 	archive_abs_path=$(pwd)/$MW_FILENAME
 	cd "$WIKI_DIR_INST/$WIKI_DIR_NAME/" ||
@@ -352,48 +388,12 @@ wiki_install () {
 		error "Unable to extract WikiMedia's files from $archive_abs_path to "\
 			"$WIKI_DIR_INST/$WIKI_DIR_NAME"
 	) || exit 1
+	echo Extracted in "$WIKI_DIR_INST/$WIKI_DIR_NAME"
 
-	create_db
-
-	# Copy the generic LocalSettings.php in the web server's directory
-	# And modify parameters according to the ones set at the top
-	# of this script.
-	# Note that LocalSettings.php is never modified.
-	if [ ! -f "$FILES_FOLDER/LocalSettings.php" ] ; then
-		error "Can't find $FILES_FOLDER/LocalSettings.php " \
-			"in the current folder. "\
-		"Please run the script inside its folder."
-	fi
-	cp "$FILES_FOLDER/LocalSettings.php" \
-		"$FILES_FOLDER/LocalSettings-tmp.php" ||
-		error "Unable to copy $FILES_FOLDER/LocalSettings.php " \
-		"to $FILES_FOLDER/LocalSettings-tmp.php"
-
-	# Parse and set the LocalSettings file of the user according to the
-	# CONFIGURATION VARIABLES section at the beginning of this script
-	file_swap="$FILES_FOLDER/LocalSettings-swap.php"
-	sed "s,@WG_SCRIPT_PATH@,/$WIKI_DIR_NAME," \
-		"$FILES_FOLDER/LocalSettings-tmp.php" > "$file_swap"
-	mv "$file_swap" "$FILES_FOLDER/LocalSettings-tmp.php"
-	sed "s,@WG_SERVER@,http://$SERVER_ADDR," \
-		"$FILES_FOLDER/LocalSettings-tmp.php" > "$file_swap"
-	mv "$file_swap" "$FILES_FOLDER/LocalSettings-tmp.php"
-	sed "s,@WG_SQLITE_DATADIR@,$TMP," \
-		"$FILES_FOLDER/LocalSettings-tmp.php" > "$file_swap"
-	mv "$file_swap" "$FILES_FOLDER/LocalSettings-tmp.php"
-	sed "s,@WG_SQLITE_DATAFILE@,$( basename $DB_FILE .sqlite)," \
-		"$FILES_FOLDER/LocalSettings-tmp.php" > "$file_swap"
-	mv "$file_swap" "$FILES_FOLDER/LocalSettings-tmp.php"
-
-	mv "$FILES_FOLDER/LocalSettings-tmp.php" \
-		"$WIKI_DIR_INST/$WIKI_DIR_NAME/LocalSettings.php" ||
-		error "Unable to move $FILES_FOLDER/LocalSettings-tmp.php" \
-		"in $WIKI_DIR_INST/$WIKI_DIR_NAME"
-	echo "File $FILES_FOLDER/LocalSettings.php is set in" \
-		" $WIKI_DIR_INST/$WIKI_DIR_NAME"
+	install_mediawiki
 
 	echo "Your wiki has been installed. You can check it at
-		http://$SERVER_ADDR/$WIKI_DIR_NAME"
+		$WIKI_URL"
 }
 
 # Reset the database of the wiki and the password of the admin
@@ -401,12 +401,18 @@ wiki_install () {
 # Warning: This function must be called only in a subdirectory of t/ directory
 wiki_reset () {
 	# Copy initial database of the wiki
-	if [ ! -f "../$FILES_FOLDER/$DB_FILE" ] ; then
-		error "Can't find ../$FILES_FOLDER/$DB_FILE in the current folder."
+	if ! test -d "../$FILES_FOLDER_DB"
+	then
+		error "No wiki database at ../$FILES_FOLDER_DB, not installed yet?"
+	fi
+	if ! test -d "../$FILES_FOLDER_POST_INSTALL_DB"
+	then
+		error "No wiki backup database at ../$FILES_FOLDER_POST_INSTALL_DB, failed installation?"
 	fi
-	cp "../$FILES_FOLDER/$DB_FILE" "$TMP" ||
-		error "Can't copy ../$FILES_FOLDER/$DB_FILE in $TMP"
-	echo "File $FILES_FOLDER/$DB_FILE is set in $TMP"
+	wiki_delete_db
+	cp -R "../$FILES_FOLDER_POST_INSTALL_DB/"* "../$FILES_FOLDER_DB/" ||
+		error "Can't copy ../$FILES_FOLDER_POST_INSTALL_DB/* to ../$FILES_FOLDER_DB/*"
+	echo "File $FILES_FOLDER_DB/* has been reset"
 }
 
 # Delete the wiki created in the web server's directory and all its content
@@ -420,13 +426,7 @@ wiki_delete () {
 		rm -rf "$WIKI_DIR_INST/$WIKI_DIR_NAME" ||
 			error "Wiki's directory $WIKI_DIR_INST/" \
 			"$WIKI_DIR_NAME could not be deleted"
-		# Delete the wiki's SQLite database.
-		rm -f "$TMP/$DB_FILE" ||
-			error "Database $TMP/$DB_FILE could not be deleted."
 	fi
-
-	# Delete the wiki's SQLite database
-	rm -f "$TMP/$DB_FILE" || error "Database $TMP/$DB_FILE could not be deleted."
-	rm -f "$FILES_FOLDER/$DB_FILE"
-	rm -rf "$TMP/mediawiki-$MW_VERSION_MAJOR.$MW_VERSION_MINOR.tar.gz"
+	wiki_delete_db
+	wiki_delete_db_backup
 }
diff --git a/third_party/git/contrib/mw-to-git/t/test-gitmw.pl b/third_party/git/contrib/mw-to-git/t/test-gitmw.pl
index 0ff76259faa6..c5d687f078a8 100755
--- a/third_party/git/contrib/mw-to-git/t/test-gitmw.pl
+++ b/third_party/git/contrib/mw-to-git/t/test-gitmw.pl
@@ -24,9 +24,7 @@
 
 use MediaWiki::API;
 use Getopt::Long;
-use encoding 'utf8';
 use DateTime::Format::ISO8601;
-use open ':encoding(utf8)';
 use constant SLASH_REPLACEMENT => "%2F";
 
 #Parsing of the config file
@@ -87,7 +85,7 @@ sub wiki_getpage {
 	# Replace spaces by underscore in the page name
 	$pagename =~ s/ /_/g;
 	$pagename =~ s/\//%2F/g;
-	open(my $file, ">$destdir/$pagename.mw");
+	open(my $file, ">:encoding(UTF-8)", "$destdir/$pagename.mw");
 	print $file "$content";
 	close ($file);
 
@@ -172,7 +170,7 @@ sub wiki_getallpagename {
 				cmlimit => 500 },
 		)
 		|| die $mw->{error}->{code}.": ".$mw->{error}->{details};
-		open(my $file, ">all.txt");
+		open(my $file, ">:encoding(UTF-8)", "all.txt");
 		foreach my $page (@{$mw_pages}) {
 			print $file "$page->{title}\n";
 		}
@@ -185,7 +183,7 @@ sub wiki_getallpagename {
 				aplimit => 500,
 			})
 		|| die $mw->{error}->{code}.": ".$mw->{error}->{details};
-		open(my $file, ">all.txt");
+		open(my $file, ">:encoding(UTF-8)", "all.txt");
 		foreach my $page (@{$mw_pages}) {
 			print $file "$page->{title}\n";
 		}
@@ -214,12 +212,12 @@ my $fct_to_call = shift;
 
 wiki_login($wiki_admin, $wiki_admin_pass);
 
-my %functions_to_call = qw(
-	upload_file    wiki_upload_file
-	get_page       wiki_getpage
-	delete_page    wiki_delete_page
-	edit_page      wiki_editpage
-	getallpagename wiki_getallpagename
+my %functions_to_call = (
+	upload_file    => \&wiki_upload_file,
+	get_page       => \&wiki_getpage,
+	delete_page    => \&wiki_delete_page,
+	edit_page      => \&wiki_editpage,
+	getallpagename => \&wiki_getallpagename,
 );
 die "$0 ERROR: wrong argument" unless exists $functions_to_call{$fct_to_call};
-&{$functions_to_call{$fct_to_call}}(@ARGV);
+$functions_to_call{$fct_to_call}->(map { utf8::decode($_); $_ } @ARGV);
diff --git a/third_party/git/contrib/mw-to-git/t/test.config b/third_party/git/contrib/mw-to-git/t/test.config
index 5ba068416247..ed10b3e4a472 100644
--- a/third_party/git/contrib/mw-to-git/t/test.config
+++ b/third_party/git/contrib/mw-to-git/t/test.config
@@ -3,15 +3,11 @@ WIKI_DIR_NAME=wiki
 
 # Login and password of the wiki's admin
 WIKI_ADMIN=WikiAdmin
-WIKI_PASSW=AdminPass
+WIKI_PASSW=AdminPass1
 
 # Address of the web server
 SERVER_ADDR=localhost
 
-# SQLite database of the wiki, named DB_FILE, is located in TMP
-TMP=/tmp
-DB_FILE=wikidb.sqlite
-
 # If LIGHTTPD is not set to true, the script will use the default
 # web server running in WIKI_DIR_INST.
 WIKI_DIR_INST=/var/www
@@ -28,10 +24,17 @@ WEB=WEB
 WEB_TMP=$WEB/tmp
 WEB_WWW=$WEB/www
 
+# Where our configuration for the wiki is located
+FILES_FOLDER=mediawiki
+FILES_FOLDER_DOWNLOAD=$FILES_FOLDER/download
+FILES_FOLDER_DB=$FILES_FOLDER/db
+FILES_FOLDER_POST_INSTALL_DB=$FILES_FOLDER/post-install-db
+
 # The variables below are used by the script to install a wiki.
 # You should not modify these unless you are modifying the script itself.
-# tested versions: 1.19.X -> 1.21.1
-MW_VERSION_MAJOR=1.21
-MW_VERSION_MINOR=1
-FILES_FOLDER=install-wiki
-DB_INSTALL_SCRIPT=db_install.php
+# tested versions: 1.19.X -> 1.21.1 -> 1.34.2
+#
+# See https://www.mediawiki.org/wiki/Download for what the latest
+# version is.
+MW_VERSION_MAJOR=1.34
+MW_VERSION_MINOR=2
diff --git a/third_party/git/contrib/subtree/Makefile b/third_party/git/contrib/subtree/Makefile
index 6906aae44147..6fa7496bfdb3 100644
--- a/third_party/git/contrib/subtree/Makefile
+++ b/third_party/git/contrib/subtree/Makefile
@@ -25,14 +25,16 @@ ASCIIDOC_HTML    = xhtml11
 ASCIIDOC_DOCBOOK = docbook
 ASCIIDOC_EXTRA   =
 XMLTO            = xmlto
+XMLTO_EXTRA      =
 
 ifdef USE_ASCIIDOCTOR
 ASCIIDOC         = asciidoctor
 ASCIIDOC_CONF    =
 ASCIIDOC_HTML    = xhtml5
-ASCIIDOC_DOCBOOK = docbook45
+ASCIIDOC_DOCBOOK = docbook
 ASCIIDOC_EXTRA  += -I../../Documentation -rasciidoctor-extensions
 ASCIIDOC_EXTRA  += -alitdd='&\#x2d;&\#x2d;'
+XMLTO_EXTRA     += --skip-validation
 endif
 
 ifndef SHELL_PATH
@@ -78,7 +80,7 @@ install-html: $(GIT_SUBTREE_HTML)
 	$(INSTALL) -m 644 $^ $(DESTDIR)$(htmldir)
 
 $(GIT_SUBTREE_DOC): $(GIT_SUBTREE_XML)
-	$(XMLTO) -m $(MANPAGE_XSL) man $^
+	$(XMLTO) -m $(MANPAGE_XSL) $(XMLTO_EXTRA) man $^
 
 $(GIT_SUBTREE_XML): $(GIT_SUBTREE_TXT)
 	$(ASCIIDOC) -b $(ASCIIDOC_DOCBOOK) -d manpage $(ASCIIDOC_CONF) \
diff --git a/third_party/git/contrib/subtree/git-subtree.txt b/third_party/git/contrib/subtree/git-subtree.txt
index 352deda69dcf..0db02fe3c095 100644
--- a/third_party/git/contrib/subtree/git-subtree.txt
+++ b/third_party/git/contrib/subtree/git-subtree.txt
@@ -139,12 +139,12 @@ OPTIONS
 
 -m <message>::
 --message=<message>::
-	This option is only valid for add, merge and pull (unsure).
+	This option is only valid for add, merge, pull, and split --rejoin.
 	Specify <message> as the commit message for the merge commit.
 
 
-OPTIONS FOR add, merge, push, pull
-----------------------------------
+OPTIONS FOR add, merge, and pull
+--------------------------------
 --squash::
 	This option is only valid for add, merge, and pull
 	commands.
diff --git a/third_party/git/contrib/svn-fe/.gitignore b/third_party/git/contrib/svn-fe/.gitignore
deleted file mode 100644
index 02a779158572..000000000000
--- a/third_party/git/contrib/svn-fe/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-/*.xml
-/*.1
-/*.html
-/svn-fe
diff --git a/third_party/git/contrib/svn-fe/Makefile b/third_party/git/contrib/svn-fe/Makefile
deleted file mode 100644
index e8651aaf4b53..000000000000
--- a/third_party/git/contrib/svn-fe/Makefile
+++ /dev/null
@@ -1,105 +0,0 @@
-all:: svn-fe$X
-
-CC = cc
-RM = rm -f
-MV = mv
-
-CFLAGS = -g -O2 -Wall
-LDFLAGS =
-EXTLIBS = -lz
-
-include ../../config.mak.uname
--include ../../config.mak.autogen
--include ../../config.mak
-
-ifeq ($(uname_S),Darwin)
-	ifndef NO_FINK
-		ifeq ($(shell test -d /sw/lib && echo y),y)
-			CFLAGS += -I/sw/include
-			LDFLAGS += -L/sw/lib
-		endif
-	endif
-	ifndef NO_DARWIN_PORTS
-		ifeq ($(shell test -d /opt/local/lib && echo y),y)
-			CFLAGS += -I/opt/local/include
-			LDFLAGS += -L/opt/local/lib
-		endif
-	endif
-endif
-
-ifndef NO_OPENSSL
-	EXTLIBS += -lssl
-	ifdef NEEDS_CRYPTO_WITH_SSL
-		EXTLIBS += -lcrypto
-	endif
-endif
-
-ifndef NO_PTHREADS
-	CFLAGS += $(PTHREADS_CFLAGS)
-	EXTLIBS += $(PTHREAD_LIBS)
-endif
-
-ifdef HAVE_CLOCK_GETTIME
-	CFLAGS += -DHAVE_CLOCK_GETTIME
-	EXTLIBS += -lrt
-endif
-
-ifdef NEEDS_LIBICONV
-	EXTLIBS += -liconv
-endif
-
-GIT_LIB = ../../libgit.a
-VCSSVN_LIB = ../../vcs-svn/lib.a
-XDIFF_LIB = ../../xdiff/lib.a
-
-LIBS = $(VCSSVN_LIB) $(GIT_LIB) $(XDIFF_LIB)
-
-QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir
-QUIET_SUBDIR1 =
-
-ifneq ($(findstring $(MAKEFLAGS),w),w)
-PRINT_DIR = --no-print-directory
-else # "make -w"
-NO_SUBDIR = :
-endif
-
-ifneq ($(findstring $(MAKEFLAGS),s),s)
-ifndef V
-	QUIET_CC      = @echo '   ' CC $@;
-	QUIET_LINK    = @echo '   ' LINK $@;
-	QUIET_SUBDIR0 = +@subdir=
-	QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
-	                $(MAKE) $(PRINT_DIR) -C $$subdir
-endif
-endif
-
-svn-fe$X: svn-fe.o $(VCSSVN_LIB) $(XDIFF_LIB) $(GIT_LIB)
-	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(EXTLIBS) -o $@ svn-fe.o $(LIBS)
-
-svn-fe.o: svn-fe.c ../../vcs-svn/svndump.h
-	$(QUIET_CC)$(CC) $(CFLAGS) -I../../vcs-svn -o $*.o -c $<
-
-svn-fe.html: svn-fe.txt
-	$(QUIET_SUBDIR0)../../Documentation $(QUIET_SUBDIR1) \
-		MAN_TXT=../contrib/svn-fe/svn-fe.txt \
-		../contrib/svn-fe/$@
-
-svn-fe.1: svn-fe.txt
-	$(QUIET_SUBDIR0)../../Documentation $(QUIET_SUBDIR1) \
-		MAN_TXT=../contrib/svn-fe/svn-fe.txt \
-		../contrib/svn-fe/$@
-	$(MV) ../../Documentation/svn-fe.1 .
-
-../../vcs-svn/lib.a: FORCE
-	$(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) vcs-svn/lib.a
-
-../../xdiff/lib.a: FORCE
-	$(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) xdiff/lib.a
-
-../../libgit.a: FORCE
-	$(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) libgit.a
-
-clean:
-	$(RM) svn-fe$X svn-fe.o svn-fe.html svn-fe.xml svn-fe.1
-
-.PHONY: all clean FORCE
diff --git a/third_party/git/contrib/svn-fe/svn-fe.c b/third_party/git/contrib/svn-fe/svn-fe.c
deleted file mode 100644
index f363505abb27..000000000000
--- a/third_party/git/contrib/svn-fe/svn-fe.c
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * This file is in the public domain.
- * You may freely use, modify, distribute, and relicense it.
- */
-
-#include <stdlib.h>
-#include "svndump.h"
-
-int main(int argc, char **argv)
-{
-	if (svndump_init(NULL))
-		return 1;
-	svndump_read((argc > 1) ? argv[1] : NULL, "refs/heads/master",
-			"refs/notes/svn/revs");
-	svndump_deinit();
-	svndump_reset();
-	return 0;
-}
diff --git a/third_party/git/contrib/svn-fe/svn-fe.txt b/third_party/git/contrib/svn-fe/svn-fe.txt
deleted file mode 100644
index a3425f4770c5..000000000000
--- a/third_party/git/contrib/svn-fe/svn-fe.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-svn-fe(1)
-=========
-
-NAME
-----
-svn-fe - convert an SVN "dumpfile" to a fast-import stream
-
-SYNOPSIS
---------
-[verse]
-mkfifo backchannel &&
-svnadmin dump --deltas REPO |
-	svn-fe [url] 3<backchannel |
-	git fast-import --cat-blob-fd=3 3>backchannel
-
-DESCRIPTION
------------
-
-Converts a Subversion dumpfile into input suitable for
-git-fast-import(1) and similar importers. REPO is a path to a
-Subversion repository mirrored on the local disk. Remote Subversion
-repositories can be mirrored on local disk using the `svnsync`
-command.
-
-Note: this tool is very young.  The details of its commandline
-interface may change in backward incompatible ways.
-
-INPUT FORMAT
-------------
-Subversion's repository dump format is documented in full in
-`notes/dump-load-format.txt` from the Subversion source tree.
-Files in this format can be generated using the 'svnadmin dump' or
-'svk admin dump' command.
-
-OUTPUT FORMAT
--------------
-The fast-import format is documented by the git-fast-import(1)
-manual page.
-
-NOTES
------
-Subversion dumps do not record a separate author and committer for
-each revision, nor do they record a separate display name and email
-address for each author.  Like git-svn(1), 'svn-fe' will use the name
-
----------
-user <user@UUID>
----------
-
-as committer, where 'user' is the value of the `svn:author` property
-and 'UUID' the repository's identifier.
-
-To support incremental imports, 'svn-fe' puts a `git-svn-id` line at
-the end of each commit log message if passed a URL on the command
-line.  This line has the form `git-svn-id: URL@REVNO UUID`.
-
-The resulting repository will generally require further processing
-to put each project in its own repository and to separate the history
-of each branch.  The 'git filter-branch --subdirectory-filter' command
-may be useful for this purpose.
-
-BUGS
-----
-Empty directories and unknown properties are silently discarded.
-
-The exit status does not reflect whether an error was detected.
-
-SEE ALSO
---------
-git-svn(1), svn2git(1), svk(1), git-filter-branch(1), git-fast-import(1),
-https://svn.apache.org/repos/asf/subversion/trunk/notes/dump-load-format.txt
diff --git a/third_party/git/contrib/svn-fe/svnrdump_sim.py b/third_party/git/contrib/svn-fe/svnrdump_sim.py
deleted file mode 100755
index 11ac6f692733..000000000000
--- a/third_party/git/contrib/svn-fe/svnrdump_sim.py
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/python
-"""
-Simulates svnrdump by replaying an existing dump from a file, taking care
-of the specified revision range.
-To simulate incremental imports the environment variable SVNRMAX can be set
-to the highest revision that should be available.
-"""
-import sys
-import os
-
-if sys.hexversion < 0x02040000:
-    # The limiter is the ValueError() calls. This may be too conservative
-    sys.stderr.write("svnrdump-sim.py: requires Python 2.4 or later.\n")
-    sys.exit(1)
-
-
-def getrevlimit():
-    var = 'SVNRMAX'
-    if var in os.environ:
-        return os.environ[var]
-    return None
-
-
-def writedump(url, lower, upper):
-    if url.startswith('sim://'):
-        filename = url[6:]
-        if filename[-1] == '/':
-            filename = filename[:-1]  # remove terminating slash
-    else:
-        raise ValueError('sim:// url required')
-    f = open(filename, 'r')
-    state = 'header'
-    wroterev = False
-    while(True):
-        l = f.readline()
-        if l == '':
-            break
-        if state == 'header' and l.startswith('Revision-number: '):
-            state = 'prefix'
-        if state == 'prefix' and l == 'Revision-number: %s\n' % lower:
-            state = 'selection'
-        if not upper == 'HEAD' and state == 'selection' and \
-                l == 'Revision-number: %s\n' % upper:
-            break
-
-        if state == 'header' or state == 'selection':
-            if state == 'selection':
-                wroterev = True
-            sys.stdout.write(l)
-    return wroterev
-
-if __name__ == "__main__":
-    if not (len(sys.argv) in (3, 4, 5)):
-        print("usage: %s dump URL -rLOWER:UPPER")
-        sys.exit(1)
-    if not sys.argv[1] == 'dump':
-        raise NotImplementedError('only "dump" is suppported.')
-    url = sys.argv[2]
-    r = ('0', 'HEAD')
-    if len(sys.argv) == 4 and sys.argv[3][0:2] == '-r':
-        r = sys.argv[3][2:].lstrip().split(':')
-    if not getrevlimit() is None:
-        r[1] = getrevlimit()
-    if writedump(url, r[0], r[1]):
-        ret = 0
-    else:
-        ret = 1
-    sys.exit(ret)