chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

17 files changed, 0 insertions, 788 deletions

diff --git a/third_party/git/templates/.gitignore b/third_party/git/templates/.gitignore
deleted file mode 100644
index 6759ecbf98f8..000000000000
--- a/third_party/git/templates/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-blt
-boilerplates.made
diff --git a/third_party/git/templates/Makefile b/third_party/git/templates/Makefile
deleted file mode 100644
index d22a71a3999b..000000000000
--- a/third_party/git/templates/Makefile
+++ /dev/null
@@ -1,66 +0,0 @@
-# make and install sample templates
-
-ifndef V
-	QUIET = @
-endif
-
-INSTALL ?= install
-TAR ?= tar
-RM ?= rm -f
-prefix ?= $(HOME)
-template_instdir ?= $(prefix)/share/git-core/templates
-# DESTDIR=
-
-ifndef SHELL_PATH
-	SHELL_PATH = /bin/sh
-endif
-ifndef PERL_PATH
-	PERL_PATH = perl
-endif
-
-SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
-PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
-
-# Shell quote (do not use $(call) to accommodate ancient setups);
-DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
-template_instdir_SQ = $(subst ','\'',$(template_instdir))
-
-all: boilerplates.made custom
-
-# Put templates that can be copied straight from the source
-# in a file direc--tory--file in the source.  They will be
-# just copied to the destination.
-
-bpsrc = $(filter-out %~,$(wildcard *--*))
-boilerplates.made : $(bpsrc)
-	$(QUIET)umask 022 && ls *--* 2>/dev/null | \
-	while read boilerplate; \
-	do \
-		case "$$boilerplate" in *~) continue ;; esac && \
-		dst=`echo "$$boilerplate" | sed -e 's|^this|.|;s|--|/|g'` && \
-		dir=`expr "$$dst" : '\(.*\)/'` && \
-		mkdir -p blt/$$dir && \
-		case "$$boilerplate" in \
-		*--) continue;; \
-		esac && \
-		sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
-		    -e 's|@SHELL_PATH@|$(SHELL_PATH_SQ)|' \
-		    -e 's|@PERL_PATH@|$(PERL_PATH_SQ)|g' $$boilerplate > \
-			blt/$$dst && \
-		if test -x "$$boilerplate"; then rx=rx; else rx=r; fi && \
-		chmod a+$$rx "blt/$$dst" || exit; \
-	done && \
-	date >$@
-
-# If you need build-tailored templates, build them into blt/
-# directory yourself here.
-custom:
-	$(QUIET): no custom templates yet
-
-clean:
-	$(RM) -r blt boilerplates.made
-
-install: all
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(template_instdir_SQ)'
-	(cd blt && $(TAR) cf - .) | \
-	(cd '$(DESTDIR_SQ)$(template_instdir_SQ)' && umask 022 && $(TAR) xof -)
diff --git a/third_party/git/templates/branches-- b/third_party/git/templates/branches--
deleted file mode 100644
index fae88709a636..000000000000
--- a/third_party/git/templates/branches--
+++ /dev/null
@@ -1 +0,0 @@
-: this is just to ensure the directory exists.
diff --git a/third_party/git/templates/hooks--applypatch-msg.sample b/third_party/git/templates/hooks--applypatch-msg.sample
deleted file mode 100755
index a5d7b84a6734..000000000000
--- a/third_party/git/templates/hooks--applypatch-msg.sample
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to check the commit log message taken by
-# applypatch from an e-mail message.
-#
-# The hook should exit with non-zero status after issuing an
-# appropriate message if it wants to stop the commit.  The hook is
-# allowed to edit the commit message file.
-#
-# To enable this hook, rename this file to "applypatch-msg".
-
-. git-sh-setup
-commitmsg="$(git rev-parse --git-path hooks/commit-msg)"
-test -x "$commitmsg" && exec "$commitmsg" ${1+"$@"}
-:
diff --git a/third_party/git/templates/hooks--commit-msg.sample b/third_party/git/templates/hooks--commit-msg.sample
deleted file mode 100755
index b58d1184a9d4..000000000000
--- a/third_party/git/templates/hooks--commit-msg.sample
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to check the commit log message.
-# Called by "git commit" with one argument, the name of the file
-# that has the commit message.  The hook should exit with non-zero
-# status after issuing an appropriate message if it wants to stop the
-# commit.  The hook is allowed to edit the commit message file.
-#
-# To enable this hook, rename this file to "commit-msg".
-
-# Uncomment the below to add a Signed-off-by line to the message.
-# Doing this in a hook is a bad idea in general, but the prepare-commit-msg
-# hook is more suited to it.
-#
-# SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
-# grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"
-
-# This example catches duplicate Signed-off-by lines.
-
-test "" = "$(grep '^Signed-off-by: ' "$1" |
-	 sort | uniq -c | sed -e '/^[ 	]*1[ 	]/d')" || {
-	echo >&2 Duplicate Signed-off-by lines.
-	exit 1
-}
diff --git a/third_party/git/templates/hooks--fsmonitor-watchman.sample b/third_party/git/templates/hooks--fsmonitor-watchman.sample
deleted file mode 100755
index 14ed0aa42de0..000000000000
--- a/third_party/git/templates/hooks--fsmonitor-watchman.sample
+++ /dev/null
@@ -1,173 +0,0 @@
-#!/usr/bin/perl
-
-use strict;
-use warnings;
-use IPC::Open2;
-
-# An example hook script to integrate Watchman
-# (https://facebook.github.io/watchman/) with git to speed up detecting
-# new and modified files.
-#
-# The hook is passed a version (currently 2) and last update token
-# formatted as a string and outputs to stdout a new update token and
-# all files that have been modified since the update token. Paths must
-# be relative to the root of the working tree and separated by a single NUL.
-#
-# To enable this hook, rename this file to "query-watchman" and set
-# 'git config core.fsmonitor .git/hooks/query-watchman'
-#
-my ($version, $last_update_token) = @ARGV;
-
-# Uncomment for debugging
-# print STDERR "$0 $version $last_update_token\n";
-
-# Check the hook interface version
-if ($version ne 2) {
-	die "Unsupported query-fsmonitor hook version '$version'.\n" .
-	    "Falling back to scanning...\n";
-}
-
-my $git_work_tree = get_working_dir();
-
-my $retry = 1;
-
-my $json_pkg;
-eval {
-	require JSON::XS;
-	$json_pkg = "JSON::XS";
-	1;
-} or do {
-	require JSON::PP;
-	$json_pkg = "JSON::PP";
-};
-
-launch_watchman();
-
-sub launch_watchman {
-	my $o = watchman_query();
-	if (is_work_tree_watched($o)) {
-		output_result($o->{clock}, @{$o->{files}});
-	}
-}
-
-sub output_result {
-	my ($clockid, @files) = @_;
-
-	# Uncomment for debugging watchman output
-	# open (my $fh, ">", ".git/watchman-output.out");
-	# binmode $fh, ":utf8";
-	# print $fh "$clockid\n@files\n";
-	# close $fh;
-
-	binmode STDOUT, ":utf8";
-	print $clockid;
-	print "\0";
-	local $, = "\0";
-	print @files;
-}
-
-sub watchman_clock {
-	my $response = qx/watchman clock "$git_work_tree"/;
-	die "Failed to get clock id on '$git_work_tree'.\n" .
-		"Falling back to scanning...\n" if $? != 0;
-
-	return $json_pkg->new->utf8->decode($response);
-}
-
-sub watchman_query {
-	my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'watchman -j --no-pretty')
-	or die "open2() failed: $!\n" .
-	"Falling back to scanning...\n";
-
-	# In the query expression below we're asking for names of files that
-	# changed since $last_update_token but not from the .git folder.
-	#
-	# To accomplish this, we're using the "since" generator to use the
-	# recency index to select candidate nodes and "fields" to limit the
-	# output to file names only. Then we're using the "expression" term to
-	# further constrain the results.
-	if (substr($last_update_token, 0, 1) eq "c") {
-		$last_update_token = "\"$last_update_token\"";
-	}
-	my $query = <<"	END";
-		["query", "$git_work_tree", {
-			"since": $last_update_token,
-			"fields": ["name"],
-			"expression": ["not", ["dirname", ".git"]]
-		}]
-	END
-
-	# Uncomment for debugging the watchman query
-	# open (my $fh, ">", ".git/watchman-query.json");
-	# print $fh $query;
-	# close $fh;
-
-	print CHLD_IN $query;
-	close CHLD_IN;
-	my $response = do {local $/; <CHLD_OUT>};
-
-	# Uncomment for debugging the watch response
-	# open ($fh, ">", ".git/watchman-response.json");
-	# print $fh $response;
-	# close $fh;
-
-	die "Watchman: command returned no output.\n" .
-	"Falling back to scanning...\n" if $response eq "";
-	die "Watchman: command returned invalid output: $response\n" .
-	"Falling back to scanning...\n" unless $response =~ /^\{/;
-
-	return $json_pkg->new->utf8->decode($response);
-}
-
-sub is_work_tree_watched {
-	my ($output) = @_;
-	my $error = $output->{error};
-	if ($retry > 0 and $error and $error =~ m/unable to resolve root .* directory (.*) is not watched/) {
-		$retry--;
-		my $response = qx/watchman watch "$git_work_tree"/;
-		die "Failed to make watchman watch '$git_work_tree'.\n" .
-		    "Falling back to scanning...\n" if $? != 0;
-		$output = $json_pkg->new->utf8->decode($response);
-		$error = $output->{error};
-		die "Watchman: $error.\n" .
-		"Falling back to scanning...\n" if $error;
-
-		# Uncomment for debugging watchman output
-		# open (my $fh, ">", ".git/watchman-output.out");
-		# close $fh;
-
-		# Watchman will always return all files on the first query so
-		# return the fast "everything is dirty" flag to git and do the
-		# Watchman query just to get it over with now so we won't pay
-		# the cost in git to look up each individual file.
-		my $o = watchman_clock();
-		$error = $output->{error};
-
-		die "Watchman: $error.\n" .
-		"Falling back to scanning...\n" if $error;
-
-		output_result($o->{clock}, ("/"));
-		$last_update_token = $o->{clock};
-
-		eval { launch_watchman() };
-		return 0;
-	}
-
-	die "Watchman: $error.\n" .
-	"Falling back to scanning...\n" if $error;
-
-	return 1;
-}
-
-sub get_working_dir {
-	my $working_dir;
-	if ($^O =~ 'msys' || $^O =~ 'cygwin') {
-		$working_dir = Win32::GetCwd();
-		$working_dir =~ tr/\\/\//;
-	} else {
-		require Cwd;
-		$working_dir = Cwd::cwd();
-	}
-
-	return $working_dir;
-}
diff --git a/third_party/git/templates/hooks--post-update.sample b/third_party/git/templates/hooks--post-update.sample
deleted file mode 100755
index ec17ec1939b7..000000000000
--- a/third_party/git/templates/hooks--post-update.sample
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to prepare a packed repository for use over
-# dumb transports.
-#
-# To enable this hook, rename this file to "post-update".
-
-exec git update-server-info
diff --git a/third_party/git/templates/hooks--pre-applypatch.sample b/third_party/git/templates/hooks--pre-applypatch.sample
deleted file mode 100755
index 4142082bcb93..000000000000
--- a/third_party/git/templates/hooks--pre-applypatch.sample
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to verify what is about to be committed
-# by applypatch from an e-mail message.
-#
-# The hook should exit with non-zero status after issuing an
-# appropriate message if it wants to stop the commit.
-#
-# To enable this hook, rename this file to "pre-applypatch".
-
-. git-sh-setup
-precommit="$(git rev-parse --git-path hooks/pre-commit)"
-test -x "$precommit" && exec "$precommit" ${1+"$@"}
-:
diff --git a/third_party/git/templates/hooks--pre-commit.sample b/third_party/git/templates/hooks--pre-commit.sample
deleted file mode 100755
index e144712c85c0..000000000000
--- a/third_party/git/templates/hooks--pre-commit.sample
+++ /dev/null
@@ -1,49 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to verify what is about to be committed.
-# Called by "git commit" with no arguments.  The hook should
-# exit with non-zero status after issuing an appropriate message if
-# it wants to stop the commit.
-#
-# To enable this hook, rename this file to "pre-commit".
-
-if git rev-parse --verify HEAD >/dev/null 2>&1
-then
-	against=HEAD
-else
-	# Initial commit: diff against an empty tree object
-	against=$(git hash-object -t tree /dev/null)
-fi
-
-# If you want to allow non-ASCII filenames set this variable to true.
-allownonascii=$(git config --type=bool hooks.allownonascii)
-
-# Redirect output to stderr.
-exec 1>&2
-
-# Cross platform projects tend to avoid non-ASCII filenames; prevent
-# them from being added to the repository. We exploit the fact that the
-# printable range starts at the space character and ends with tilde.
-if [ "$allownonascii" != "true" ] &&
-	# Note that the use of brackets around a tr range is ok here, (it's
-	# even required, for portability to Solaris 10's /usr/bin/tr), since
-	# the square bracket bytes happen to fall in the designated range.
-	test $(git diff --cached --name-only --diff-filter=A -z $against |
-	  LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0
-then
-	cat <<\EOF
-Error: Attempt to add a non-ASCII file name.
-
-This can cause problems if you want to work with people on other platforms.
-
-To be portable it is advisable to rename the file.
-
-If you know what you are doing you can disable this check using:
-
-  git config hooks.allownonascii true
-EOF
-	exit 1
-fi
-
-# If there are whitespace errors, print the offending file names and fail.
-exec git diff-index --check --cached $against --
diff --git a/third_party/git/templates/hooks--pre-merge-commit.sample b/third_party/git/templates/hooks--pre-merge-commit.sample
deleted file mode 100755
index 399eab1924e3..000000000000
--- a/third_party/git/templates/hooks--pre-merge-commit.sample
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to verify what is about to be committed.
-# Called by "git merge" with no arguments.  The hook should
-# exit with non-zero status after issuing an appropriate message to
-# stderr if it wants to stop the merge commit.
-#
-# To enable this hook, rename this file to "pre-merge-commit".
-
-. git-sh-setup
-test -x "$GIT_DIR/hooks/pre-commit" &&
-        exec "$GIT_DIR/hooks/pre-commit"
-:
diff --git a/third_party/git/templates/hooks--pre-push.sample b/third_party/git/templates/hooks--pre-push.sample
deleted file mode 100755
index 4ce688d32b75..000000000000
--- a/third_party/git/templates/hooks--pre-push.sample
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/bin/sh
-
-# An example hook script to verify what is about to be pushed.  Called by "git
-# push" after it has checked the remote status, but before anything has been
-# pushed.  If this script exits with a non-zero status nothing will be pushed.
-#
-# This hook is called with the following parameters:
-#
-# $1 -- Name of the remote to which the push is being done
-# $2 -- URL to which the push is being done
-#
-# If pushing without using a named remote those arguments will be equal.
-#
-# Information about the commits which are being pushed is supplied as lines to
-# the standard input in the form:
-#
-#   <local ref> <local oid> <remote ref> <remote oid>
-#
-# This sample shows how to prevent push of commits where the log message starts
-# with "WIP" (work in progress).
-
-remote="$1"
-url="$2"
-
-zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
-
-while read local_ref local_oid remote_ref remote_oid
-do
-	if test "$local_oid" = "$zero"
-	then
-		# Handle delete
-		:
-	else
-		if test "$remote_oid" = "$zero"
-		then
-			# New branch, examine all commits
-			range="$local_oid"
-		else
-			# Update to existing branch, examine new commits
-			range="$remote_oid..$local_oid"
-		fi
-
-		# Check for WIP commit
-		commit=$(git rev-list -n 1 --grep '^WIP' "$range")
-		if test -n "$commit"
-		then
-			echo >&2 "Found WIP commit in $local_ref, not pushing"
-			exit 1
-		fi
-	fi
-done
-
-exit 0
diff --git a/third_party/git/templates/hooks--pre-rebase.sample b/third_party/git/templates/hooks--pre-rebase.sample
deleted file mode 100755
index db5feab8a1ee..000000000000
--- a/third_party/git/templates/hooks--pre-rebase.sample
+++ /dev/null
@@ -1,169 +0,0 @@
-#!/bin/sh
-#
-# Copyright (c) 2006, 2008 Junio C Hamano
-#
-# The "pre-rebase" hook is run just before "git rebase" starts doing
-# its job, and can prevent the command from running by exiting with
-# non-zero status.
-#
-# The hook is called with the following parameters:
-#
-# $1 -- the upstream the series was forked from.
-# $2 -- the branch being rebased (or empty when rebasing the current branch).
-#
-# This sample shows how to prevent topic branches that are already
-# merged to 'next' branch from getting rebased, because allowing it
-# would result in rebasing already published history.
-
-publish=next
-basebranch="$1"
-if test "$#" = 2
-then
-	topic="refs/heads/$2"
-else
-	topic=`git symbolic-ref HEAD` ||
-	exit 0 ;# we do not interrupt rebasing detached HEAD
-fi
-
-case "$topic" in
-refs/heads/??/*)
-	;;
-*)
-	exit 0 ;# we do not interrupt others.
-	;;
-esac
-
-# Now we are dealing with a topic branch being rebased
-# on top of master.  Is it OK to rebase it?
-
-# Does the topic really exist?
-git show-ref -q "$topic" || {
-	echo >&2 "No such branch $topic"
-	exit 1
-}
-
-# Is topic fully merged to master?
-not_in_master=`git rev-list --pretty=oneline ^master "$topic"`
-if test -z "$not_in_master"
-then
-	echo >&2 "$topic is fully merged to master; better remove it."
-	exit 1 ;# we could allow it, but there is no point.
-fi
-
-# Is topic ever merged to next?  If so you should not be rebasing it.
-only_next_1=`git rev-list ^master "^$topic" ${publish} | sort`
-only_next_2=`git rev-list ^master           ${publish} | sort`
-if test "$only_next_1" = "$only_next_2"
-then
-	not_in_topic=`git rev-list "^$topic" master`
-	if test -z "$not_in_topic"
-	then
-		echo >&2 "$topic is already up to date with master"
-		exit 1 ;# we could allow it, but there is no point.
-	else
-		exit 0
-	fi
-else
-	not_in_next=`git rev-list --pretty=oneline ^${publish} "$topic"`
-	@PERL_PATH@ -e '
-		my $topic = $ARGV[0];
-		my $msg = "* $topic has commits already merged to public branch:\n";
-		my (%not_in_next) = map {
-			/^([0-9a-f]+) /;
-			($1 => 1);
-		} split(/\n/, $ARGV[1]);
-		for my $elem (map {
-				/^([0-9a-f]+) (.*)$/;
-				[$1 => $2];
-			} split(/\n/, $ARGV[2])) {
-			if (!exists $not_in_next{$elem->[0]}) {
-				if ($msg) {
-					print STDERR $msg;
-					undef $msg;
-				}
-				print STDERR " $elem->[1]\n";
-			}
-		}
-	' "$topic" "$not_in_next" "$not_in_master"
-	exit 1
-fi
-
-<<\DOC_END
-
-This sample hook safeguards topic branches that have been
-published from being rewound.
-
-The workflow assumed here is:
-
- * Once a topic branch forks from "master", "master" is never
-   merged into it again (either directly or indirectly).
-
- * Once a topic branch is fully cooked and merged into "master",
-   it is deleted.  If you need to build on top of it to correct
-   earlier mistakes, a new topic branch is created by forking at
-   the tip of the "master".  This is not strictly necessary, but
-   it makes it easier to keep your history simple.
-
- * Whenever you need to test or publish your changes to topic
-   branches, merge them into "next" branch.
-
-The script, being an example, hardcodes the publish branch name
-to be "next", but it is trivial to make it configurable via
-$GIT_DIR/config mechanism.
-
-With this workflow, you would want to know:
-
-(1) ... if a topic branch has ever been merged to "next".  Young
-    topic branches can have stupid mistakes you would rather
-    clean up before publishing, and things that have not been
-    merged into other branches can be easily rebased without
-    affecting other people.  But once it is published, you would
-    not want to rewind it.
-
-(2) ... if a topic branch has been fully merged to "master".
-    Then you can delete it.  More importantly, you should not
-    build on top of it -- other people may already want to
-    change things related to the topic as patches against your
-    "master", so if you need further changes, it is better to
-    fork the topic (perhaps with the same name) afresh from the
-    tip of "master".
-
-Let's look at this example:
-
-		   o---o---o---o---o---o---o---o---o---o "next"
-		  /       /           /           /
-		 /   a---a---b A     /           /
-		/   /               /           /
-	       /   /   c---c---c---c B         /
-	      /   /   /             \         /
-	     /   /   /   b---b C     \       /
-	    /   /   /   /             \     /
-    ---o---o---o---o---o---o---o---o---o---o---o "master"
-
-
-A, B and C are topic branches.
-
- * A has one fix since it was merged up to "next".
-
- * B has finished.  It has been fully merged up to "master" and "next",
-   and is ready to be deleted.
-
- * C has not merged to "next" at all.
-
-We would want to allow C to be rebased, refuse A, and encourage
-B to be deleted.
-
-To compute (1):
-
-	git rev-list ^master ^topic next
-	git rev-list ^master        next
-
-	if these match, topic has not merged in next at all.
-
-To compute (2):
-
-	git rev-list master..topic
-
-	if this is empty, it is fully merged to "master".
-
-DOC_END
diff --git a/third_party/git/templates/hooks--pre-receive.sample b/third_party/git/templates/hooks--pre-receive.sample
deleted file mode 100755
index a1fd29ec1482..000000000000
--- a/third_party/git/templates/hooks--pre-receive.sample
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to make use of push options.
-# The example simply echoes all push options that start with 'echoback='
-# and rejects all pushes when the "reject" push option is used.
-#
-# To enable this hook, rename this file to "pre-receive".
-
-if test -n "$GIT_PUSH_OPTION_COUNT"
-then
-	i=0
-	while test "$i" -lt "$GIT_PUSH_OPTION_COUNT"
-	do
-		eval "value=\$GIT_PUSH_OPTION_$i"
-		case "$value" in
-		echoback=*)
-			echo "echo from the pre-receive-hook: ${value#*=}" >&2
-			;;
-		reject)
-			exit 1
-		esac
-		i=$((i + 1))
-	done
-fi
diff --git a/third_party/git/templates/hooks--prepare-commit-msg.sample b/third_party/git/templates/hooks--prepare-commit-msg.sample
deleted file mode 100755
index 318afe3fd865..000000000000
--- a/third_party/git/templates/hooks--prepare-commit-msg.sample
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to prepare the commit log message.
-# Called by "git commit" with the name of the file that has the
-# commit message, followed by the description of the commit
-# message's source.  The hook's purpose is to edit the commit
-# message file.  If the hook fails with a non-zero status,
-# the commit is aborted.
-#
-# To enable this hook, rename this file to "prepare-commit-msg".
-
-# This hook includes three examples. The first one removes the
-# "# Please enter the commit message..." help message.
-#
-# The second includes the output of "git diff --name-status -r"
-# into the message, just before the "git status" output.  It is
-# commented because it doesn't cope with --amend or with squashed
-# commits.
-#
-# The third example adds a Signed-off-by line to the message, that can
-# still be edited.  This is rarely a good idea.
-
-COMMIT_MSG_FILE=$1
-COMMIT_SOURCE=$2
-SHA1=$3
-
-@PERL_PATH@ -i.bak -ne 'print unless(m/^. Please enter the commit message/..m/^#$/)' "$COMMIT_MSG_FILE"
-
-# case "$COMMIT_SOURCE,$SHA1" in
-#  ,|template,)
-#    @PERL_PATH@ -i.bak -pe '
-#       print "\n" . `git diff --cached --name-status -r`
-# 	 if /^#/ && $first++ == 0' "$COMMIT_MSG_FILE" ;;
-#  *) ;;
-# esac
-
-# SOB=$(git var GIT_COMMITTER_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
-# git interpret-trailers --in-place --trailer "$SOB" "$COMMIT_MSG_FILE"
-# if test -z "$COMMIT_SOURCE"
-# then
-#   @PERL_PATH@ -i.bak -pe 'print "\n" if !$first_line++' "$COMMIT_MSG_FILE"
-# fi
diff --git a/third_party/git/templates/hooks--update.sample b/third_party/git/templates/hooks--update.sample
deleted file mode 100755
index c4d426bc6ee9..000000000000
--- a/third_party/git/templates/hooks--update.sample
+++ /dev/null
@@ -1,128 +0,0 @@
-#!/bin/sh
-#
-# An example hook script to block unannotated tags from entering.
-# Called by "git receive-pack" with arguments: refname sha1-old sha1-new
-#
-# To enable this hook, rename this file to "update".
-#
-# Config
-# ------
-# hooks.allowunannotated
-#   This boolean sets whether unannotated tags will be allowed into the
-#   repository.  By default they won't be.
-# hooks.allowdeletetag
-#   This boolean sets whether deleting tags will be allowed in the
-#   repository.  By default they won't be.
-# hooks.allowmodifytag
-#   This boolean sets whether a tag may be modified after creation. By default
-#   it won't be.
-# hooks.allowdeletebranch
-#   This boolean sets whether deleting branches will be allowed in the
-#   repository.  By default they won't be.
-# hooks.denycreatebranch
-#   This boolean sets whether remotely creating branches will be denied
-#   in the repository.  By default this is allowed.
-#
-
-# --- Command line
-refname="$1"
-oldrev="$2"
-newrev="$3"
-
-# --- Safety check
-if [ -z "$GIT_DIR" ]; then
-	echo "Don't run this script from the command line." >&2
-	echo " (if you want, you could supply GIT_DIR then run" >&2
-	echo "  $0 <ref> <oldrev> <newrev>)" >&2
-	exit 1
-fi
-
-if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
-	echo "usage: $0 <ref> <oldrev> <newrev>" >&2
-	exit 1
-fi
-
-# --- Config
-allowunannotated=$(git config --type=bool hooks.allowunannotated)
-allowdeletebranch=$(git config --type=bool hooks.allowdeletebranch)
-denycreatebranch=$(git config --type=bool hooks.denycreatebranch)
-allowdeletetag=$(git config --type=bool hooks.allowdeletetag)
-allowmodifytag=$(git config --type=bool hooks.allowmodifytag)
-
-# check for no description
-projectdesc=$(sed -e '1q' "$GIT_DIR/description")
-case "$projectdesc" in
-"Unnamed repository"* | "")
-	echo "*** Project description file hasn't been set" >&2
-	exit 1
-	;;
-esac
-
-# --- Check types
-# if $newrev is 0000...0000, it's a commit to delete a ref.
-zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
-if [ "$newrev" = "$zero" ]; then
-	newrev_type=delete
-else
-	newrev_type=$(git cat-file -t $newrev)
-fi
-
-case "$refname","$newrev_type" in
-	refs/tags/*,commit)
-		# un-annotated tag
-		short_refname=${refname##refs/tags/}
-		if [ "$allowunannotated" != "true" ]; then
-			echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2
-			echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2
-			exit 1
-		fi
-		;;
-	refs/tags/*,delete)
-		# delete tag
-		if [ "$allowdeletetag" != "true" ]; then
-			echo "*** Deleting a tag is not allowed in this repository" >&2
-			exit 1
-		fi
-		;;
-	refs/tags/*,tag)
-		# annotated tag
-		if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1
-		then
-			echo "*** Tag '$refname' already exists." >&2
-			echo "*** Modifying a tag is not allowed in this repository." >&2
-			exit 1
-		fi
-		;;
-	refs/heads/*,commit)
-		# branch
-		if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then
-			echo "*** Creating a branch is not allowed in this repository" >&2
-			exit 1
-		fi
-		;;
-	refs/heads/*,delete)
-		# delete branch
-		if [ "$allowdeletebranch" != "true" ]; then
-			echo "*** Deleting a branch is not allowed in this repository" >&2
-			exit 1
-		fi
-		;;
-	refs/remotes/*,commit)
-		# tracking branch
-		;;
-	refs/remotes/*,delete)
-		# delete tracking branch
-		if [ "$allowdeletebranch" != "true" ]; then
-			echo "*** Deleting a tracking branch is not allowed in this repository" >&2
-			exit 1
-		fi
-		;;
-	*)
-		# Anything else (is there anything else?)
-		echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2
-		exit 1
-		;;
-esac
-
-# --- Finished
-exit 0
diff --git a/third_party/git/templates/info--exclude b/third_party/git/templates/info--exclude
deleted file mode 100644
index a5196d1be8fb..000000000000
--- a/third_party/git/templates/info--exclude
+++ /dev/null
@@ -1,6 +0,0 @@
-# git ls-files --others --exclude-from=.git/info/exclude
-# Lines that start with '#' are comments.
-# For a project mostly in C, the following would be a good set of
-# exclude patterns (uncomment them if you want to use them):
-# *.[oa]
-# *~
diff --git a/third_party/git/templates/this--description b/third_party/git/templates/this--description
deleted file mode 100644
index 498b267a8c78..000000000000
--- a/third_party/git/templates/this--description
+++ /dev/null
@@ -1 +0,0 @@
-Unnamed repository; edit this file 'description' to name the repository.