Squashed 'third_party/cgit/' changes from 8fc0c81bb..26ac84466

26ac84466 Bump version to 1.4.1
cc167887f Fix bad free in cgit_diff_tree
4a30da89c Bump version to 1.4.0
695515801 Tolerate short writes in print_slot
069d15447 git: update to v2.36.1
3374b0e7a git: update to v2.36.0
400fd7abb Use release_commit_memory()
93ce8fe3b Reset font size for blame oid
28c0cb6f7 Add a link to the parent commit in blame
c5809a429 Fix fmt() off-by-one error
129d8a158 Allow to give readme head from query
44a004809 Bump version to 1.3.0
76d9396e4 Update information for fork
d993e4be6 Remove Lua support
e4ce4fa74 Merge remote-tracking branch 'ch/git-2-35'
065ee253a Silence owner-info error
f92ba7ea8 Remove default favicon
03519c7bc Show about path in page title
20f0352d9 Generate valid Atom feeds
516175469 Merge up to git v2.32.0
12d91b897 Fix crash trying to print "this commit" on 404s
957855ffd Use owner-filter for repo page headers
f9c417f24 Fix tests for diff spans
be6a526a7 Use <pre> and <span> to print diffs
a8e11db65 Use buffered stdio
b2511f295 Remove redundant title on repo anchors
2d4c893db Improve button spacing for browsers w/o CSS
1e9f26ffb Improve decoration display for browsers without CSS
2843093cb Use <pre> for commit-msg
122f7a9be Improve pageheader display on text-based browsers
298f7d15f Use git raw note format
6524fe671 Add "this commit" option to switch form
8f9034884 Show subject in commit page title
41a17adaf Show symlink targets in tree listing
437d0b416 Disallow blame in robots.txt
e75fa957e Don't link to blame for binary blobs
8bf017ec5 Bail from blame if blob is binary
fa86ef6a3 Remove dependency on memrchr
bbbaa29a9 git: update to v2.35.1
73e98c16e git: update to v2.35.0
11be5b818 git: update to v2.34.1
b8f2b675d git: update to v2.34.0
45eff4065 git: update to v2.33.0
5258c297b git: update to v2.32.0
6dbbffe01 git: update to v2.31.1
62eb8db45 md2html: use proper formatting for hr
d889cae81 git: update to v2.31.0
4ffadc1e0 git: update to v2.30.1
bd6f5683f tests: t0107: support older and/or non-GNU tar
f69626c68 md2html: use sane_lists extension
cef27b670 git: update to v2.30.0
b1739247b git: update to v2.29.2
fe99c76ee git: update to v2.29.1
adcc4f822 tests: try with commit-graph
a1039ab17 tests: do not copy snapshots to /tmp/
a4de0e810 global: replace hard coded hash length
779631c6d global: replace references to 'sha1' with 'oid'
629659d2c git: update to v2.29.0
205837d46 git: update to v2.28.0
f780396c0 git: update to v2.27.0
0462f08d8 git: update to v2.26.0
55fa25adb Bump version
6a8d6d4b5 global: use proper accessors for maybe_tree
892ba8c3c ui-snapshot: add support for zstd compression
cc230bf04 tests: add tests for xz compressed snapshots
06671f4b2 ui-snapshot: add support for lzip compression
fde897b81 git: update to v2.25.1
5e49023b0 tests: allow to skip git version tests
fa146ccab Bump version
bd68c9887 git: update to v2.25.0
ca98c9e7b tests: skip tests if strace is not functional
d8e5dd25a git: update to v2.24.1
583aa5d80 ui-repolist: do not return unsigned (negative) value
bfabd4519 git: update to v2.24.0

git-subtree-dir: third_party/cgit
git-subtree-split: 26ac844661e95ee1ff3ddf4f8691de9904dad783

1 files changed, 2 insertions, 237 deletions

diff --git a/filter.c b/filter.c
index 70f5b749989c..2b6c838e6cdf 100644
--- a/filter.c
+++ b/filter.c
@@ -8,12 +8,6 @@
 
 #include "cgit.h"
 #include "html.h"
-#ifndef NO_LUA
-#include <dlfcn.h>
-#include <lua.h>
-#include <lualib.h>
-#include <lauxlib.h>
-#endif
 
 static inline void reap_filter(struct cgit_filter *filter)
 {
@@ -48,6 +42,7 @@ static int open_exec_filter(struct cgit_filter *base, va_list ap)
 	for (i = 0; i < filter->base.argument_count; i++)
 		filter->argv[i + 1] = va_arg(ap, char *);
 
+	chk_zero(fflush(stdout), "unable to flush STDOUT");
 	filter->old_stdout = chk_positive(dup(STDOUT_FILENO),
 		"Unable to duplicate STDOUT");
 	chk_zero(pipe(pipe_fh), "Unable to create pipe to subprocess");
@@ -71,6 +66,7 @@ static int close_exec_filter(struct cgit_filter *base)
 	struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base;
 	int i, exit_status = 0;
 
+	chk_zero(fflush(stdout), "unable to flush STDOUT");
 	chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO),
 		"Unable to restore STDOUT");
 	close(filter->old_stdout);
@@ -136,234 +132,6 @@ void cgit_exec_filter_init(struct cgit_exec_filter *filter, char *cmd, char **ar
 	filter->base.argument_count = 0;
 }
 
-#ifdef NO_LUA
-void cgit_init_filters(void)
-{
-}
-#endif
-
-#ifndef NO_LUA
-static ssize_t (*libc_write)(int fd, const void *buf, size_t count);
-static ssize_t (*filter_write)(struct cgit_filter *base, const void *buf, size_t count) = NULL;
-static struct cgit_filter *current_write_filter = NULL;
-
-void cgit_init_filters(void)
-{
-	libc_write = dlsym(RTLD_NEXT, "write");
-	if (!libc_write)
-		die("Could not locate libc's write function");
-}
-
-ssize_t write(int fd, const void *buf, size_t count)
-{
-	if (fd != STDOUT_FILENO || !filter_write)
-		return libc_write(fd, buf, count);
-	return filter_write(current_write_filter, buf, count);
-}
-
-static inline void hook_write(struct cgit_filter *filter, ssize_t (*new_write)(struct cgit_filter *base, const void *buf, size_t count))
-{
-	/* We want to avoid buggy nested patterns. */
-	assert(filter_write == NULL);
-	assert(current_write_filter == NULL);
-	current_write_filter = filter;
-	filter_write = new_write;
-}
-
-static inline void unhook_write(void)
-{
-	assert(filter_write != NULL);
-	assert(current_write_filter != NULL);
-	filter_write = NULL;
-	current_write_filter = NULL;
-}
-
-struct lua_filter {
-	struct cgit_filter base;
-	char *script_file;
-	lua_State *lua_state;
-};
-
-static void error_lua_filter(struct lua_filter *filter)
-{
-	die("Lua error in %s: %s", filter->script_file, lua_tostring(filter->lua_state, -1));
-	lua_pop(filter->lua_state, 1);
-}
-
-static ssize_t write_lua_filter(struct cgit_filter *base, const void *buf, size_t count)
-{
-	struct lua_filter *filter = (struct lua_filter *)base;
-
-	lua_getglobal(filter->lua_state, "filter_write");
-	lua_pushlstring(filter->lua_state, buf, count);
-	if (lua_pcall(filter->lua_state, 1, 0, 0)) {
-		error_lua_filter(filter);
-		errno = EIO;
-		return -1;
-	}
-	return count;
-}
-
-static inline int hook_lua_filter(lua_State *lua_state, void (*fn)(const char *txt))
-{
-	const char *str;
-	ssize_t (*save_filter_write)(struct cgit_filter *base, const void *buf, size_t count);
-	struct cgit_filter *save_filter;
-
-	str = lua_tostring(lua_state, 1);
-	if (!str)
-		return 0;
-
-	save_filter_write = filter_write;
-	save_filter = current_write_filter;
-	unhook_write();
-	fn(str);
-	hook_write(save_filter, save_filter_write);
-
-	return 0;
-}
-
-static int html_lua_filter(lua_State *lua_state)
-{
-	return hook_lua_filter(lua_state, html);
-}
-
-static int html_txt_lua_filter(lua_State *lua_state)
-{
-	return hook_lua_filter(lua_state, html_txt);
-}
-
-static int html_attr_lua_filter(lua_State *lua_state)
-{
-	return hook_lua_filter(lua_state, html_attr);
-}
-
-static int html_url_path_lua_filter(lua_State *lua_state)
-{
-	return hook_lua_filter(lua_state, html_url_path);
-}
-
-static int html_url_arg_lua_filter(lua_State *lua_state)
-{
-	return hook_lua_filter(lua_state, html_url_arg);
-}
-
-static int html_include_lua_filter(lua_State *lua_state)
-{
-	return hook_lua_filter(lua_state, (void (*)(const char *))html_include);
-}
-
-static void cleanup_lua_filter(struct cgit_filter *base)
-{
-	struct lua_filter *filter = (struct lua_filter *)base;
-
-	if (!filter->lua_state)
-		return;
-
-	lua_close(filter->lua_state);
-	filter->lua_state = NULL;
-	if (filter->script_file) {
-		free(filter->script_file);
-		filter->script_file = NULL;
-	}
-}
-
-static int init_lua_filter(struct lua_filter *filter)
-{
-	if (filter->lua_state)
-		return 0;
-
-	if (!(filter->lua_state = luaL_newstate()))
-		return 1;
-
-	luaL_openlibs(filter->lua_state);
-
-	lua_pushcfunction(filter->lua_state, html_lua_filter);
-	lua_setglobal(filter->lua_state, "html");
-	lua_pushcfunction(filter->lua_state, html_txt_lua_filter);
-	lua_setglobal(filter->lua_state, "html_txt");
-	lua_pushcfunction(filter->lua_state, html_attr_lua_filter);
-	lua_setglobal(filter->lua_state, "html_attr");
-	lua_pushcfunction(filter->lua_state, html_url_path_lua_filter);
-	lua_setglobal(filter->lua_state, "html_url_path");
-	lua_pushcfunction(filter->lua_state, html_url_arg_lua_filter);
-	lua_setglobal(filter->lua_state, "html_url_arg");
-	lua_pushcfunction(filter->lua_state, html_include_lua_filter);
-	lua_setglobal(filter->lua_state, "html_include");
-
-	if (luaL_dofile(filter->lua_state, filter->script_file)) {
-		error_lua_filter(filter);
-		lua_close(filter->lua_state);
-		filter->lua_state = NULL;
-		return 1;
-	}
-	return 0;
-}
-
-static int open_lua_filter(struct cgit_filter *base, va_list ap)
-{
-	struct lua_filter *filter = (struct lua_filter *)base;
-	int i;
-
-	if (init_lua_filter(filter))
-		return 1;
-
-	hook_write(base, write_lua_filter);
-
-	lua_getglobal(filter->lua_state, "filter_open");
-	for (i = 0; i < filter->base.argument_count; ++i)
-		lua_pushstring(filter->lua_state, va_arg(ap, char *));
-	if (lua_pcall(filter->lua_state, filter->base.argument_count, 0, 0)) {
-		error_lua_filter(filter);
-		return 1;
-	}
-	return 0;
-}
-
-static int close_lua_filter(struct cgit_filter *base)
-{
-	struct lua_filter *filter = (struct lua_filter *)base;
-	int ret = 0;
-
-	lua_getglobal(filter->lua_state, "filter_close");
-	if (lua_pcall(filter->lua_state, 0, 1, 0)) {
-		error_lua_filter(filter);
-		ret = -1;
-	} else {
-		ret = lua_tonumber(filter->lua_state, -1);
-		lua_pop(filter->lua_state, 1);
-	}
-
-	unhook_write();
-	return ret;
-}
-
-static void fprintf_lua_filter(struct cgit_filter *base, FILE *f, const char *prefix)
-{
-	struct lua_filter *filter = (struct lua_filter *)base;
-	fprintf(f, "%slua:%s\n", prefix, filter->script_file);
-}
-
-
-static struct cgit_filter *new_lua_filter(const char *cmd, int argument_count)
-{
-	struct lua_filter *filter;
-
-	filter = xmalloc(sizeof(*filter));
-	memset(filter, 0, sizeof(*filter));
-	filter->base.open = open_lua_filter;
-	filter->base.close = close_lua_filter;
-	filter->base.fprintf = fprintf_lua_filter;
-	filter->base.cleanup = cleanup_lua_filter;
-	filter->base.argument_count = argument_count;
-	filter->script_file = xstrdup(cmd);
-
-	return &filter->base;
-}
-
-#endif
-
-
 int cgit_open_filter(struct cgit_filter *filter, ...)
 {
 	int result;
@@ -395,9 +163,6 @@ static const struct {
 	struct cgit_filter *(*ctor)(const char *cmd, int argument_count);
 } filter_specs[] = {
 	{ "exec", new_exec_filter },
-#ifndef NO_LUA
-	{ "lua", new_lua_filter },
-#endif
 };
 
 struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype)