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

1 files changed, 0 insertions, 342 deletions

diff --git a/third_party/git/builtin/commit-graph.c b/third_party/git/builtin/commit-graph.c
deleted file mode 100644
index 78fa08f43af5..000000000000
--- a/third_party/git/builtin/commit-graph.c
+++ /dev/null
@@ -1,342 +0,0 @@
-#include "builtin.h"
-#include "config.h"
-#include "dir.h"
-#include "lockfile.h"
-#include "parse-options.h"
-#include "repository.h"
-#include "commit-graph.h"
-#include "object-store.h"
-#include "progress.h"
-#include "tag.h"
-
-static char const * const builtin_commit_graph_usage[] = {
-	N_("git commit-graph verify [--object-dir <objdir>] [--shallow] [--[no-]progress]"),
-	N_("git commit-graph write [--object-dir <objdir>] [--append] "
-	   "[--split[=<strategy>]] [--reachable|--stdin-packs|--stdin-commits] "
-	   "[--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress] "
-	   "<split options>"),
-	NULL
-};
-
-static const char * const builtin_commit_graph_verify_usage[] = {
-	N_("git commit-graph verify [--object-dir <objdir>] [--shallow] [--[no-]progress]"),
-	NULL
-};
-
-static const char * const builtin_commit_graph_write_usage[] = {
-	N_("git commit-graph write [--object-dir <objdir>] [--append] "
-	   "[--split[=<strategy>]] [--reachable|--stdin-packs|--stdin-commits] "
-	   "[--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress] "
-	   "<split options>"),
-	NULL
-};
-
-static struct opts_commit_graph {
-	const char *obj_dir;
-	int reachable;
-	int stdin_packs;
-	int stdin_commits;
-	int append;
-	int split;
-	int shallow;
-	int progress;
-	int enable_changed_paths;
-} opts;
-
-static struct object_directory *find_odb(struct repository *r,
-					 const char *obj_dir)
-{
-	struct object_directory *odb;
-	char *obj_dir_real = real_pathdup(obj_dir, 1);
-	struct strbuf odb_path_real = STRBUF_INIT;
-
-	prepare_alt_odb(r);
-	for (odb = r->objects->odb; odb; odb = odb->next) {
-		strbuf_realpath(&odb_path_real, odb->path, 1);
-		if (!strcmp(obj_dir_real, odb_path_real.buf))
-			break;
-	}
-
-	free(obj_dir_real);
-	strbuf_release(&odb_path_real);
-
-	if (!odb)
-		die(_("could not find object directory matching %s"), obj_dir);
-	return odb;
-}
-
-static int graph_verify(int argc, const char **argv)
-{
-	struct commit_graph *graph = NULL;
-	struct object_directory *odb = NULL;
-	char *graph_name;
-	int open_ok;
-	int fd;
-	struct stat st;
-	int flags = 0;
-
-	static struct option builtin_commit_graph_verify_options[] = {
-		OPT_STRING(0, "object-dir", &opts.obj_dir,
-			   N_("dir"),
-			   N_("The object directory to store the graph")),
-		OPT_BOOL(0, "shallow", &opts.shallow,
-			 N_("if the commit-graph is split, only verify the tip file")),
-		OPT_BOOL(0, "progress", &opts.progress, N_("force progress reporting")),
-		OPT_END(),
-	};
-
-	trace2_cmd_mode("verify");
-
-	opts.progress = isatty(2);
-	argc = parse_options(argc, argv, NULL,
-			     builtin_commit_graph_verify_options,
-			     builtin_commit_graph_verify_usage, 0);
-
-	if (!opts.obj_dir)
-		opts.obj_dir = get_object_directory();
-	if (opts.shallow)
-		flags |= COMMIT_GRAPH_VERIFY_SHALLOW;
-	if (opts.progress)
-		flags |= COMMIT_GRAPH_WRITE_PROGRESS;
-
-	odb = find_odb(the_repository, opts.obj_dir);
-	graph_name = get_commit_graph_filename(odb);
-	open_ok = open_commit_graph(graph_name, &fd, &st);
-	if (!open_ok && errno != ENOENT)
-		die_errno(_("Could not open commit-graph '%s'"), graph_name);
-
-	FREE_AND_NULL(graph_name);
-
-	if (open_ok)
-		graph = load_commit_graph_one_fd_st(the_repository, fd, &st, odb);
-	else
-		graph = read_commit_graph_one(the_repository, odb);
-
-	/* Return failure if open_ok predicted success */
-	if (!graph)
-		return !!open_ok;
-
-	UNLEAK(graph);
-	return verify_commit_graph(the_repository, graph, flags);
-}
-
-extern int read_replace_refs;
-static struct commit_graph_opts write_opts;
-
-static int write_option_parse_split(const struct option *opt, const char *arg,
-				    int unset)
-{
-	enum commit_graph_split_flags *flags = opt->value;
-
-	BUG_ON_OPT_NEG(unset);
-
-	opts.split = 1;
-	if (!arg)
-		return 0;
-
-	if (!strcmp(arg, "no-merge"))
-		*flags = COMMIT_GRAPH_SPLIT_MERGE_PROHIBITED;
-	else if (!strcmp(arg, "replace"))
-		*flags = COMMIT_GRAPH_SPLIT_REPLACE;
-	else
-		die(_("unrecognized --split argument, %s"), arg);
-
-	return 0;
-}
-
-static int read_one_commit(struct oidset *commits, struct progress *progress,
-			   const char *hash)
-{
-	struct object *result;
-	struct object_id oid;
-	const char *end;
-
-	if (parse_oid_hex(hash, &oid, &end))
-		return error(_("unexpected non-hex object ID: %s"), hash);
-
-	result = deref_tag(the_repository, parse_object(the_repository, &oid),
-			   NULL, 0);
-	if (!result)
-		return error(_("invalid object: %s"), hash);
-	else if (object_as_type(result, OBJ_COMMIT, 1))
-		oidset_insert(commits, &result->oid);
-
-	display_progress(progress, oidset_size(commits));
-
-	return 0;
-}
-
-static int write_option_max_new_filters(const struct option *opt,
-					const char *arg,
-					int unset)
-{
-	int *to = opt->value;
-	if (unset)
-		*to = -1;
-	else {
-		const char *s;
-		*to = strtol(arg, (char **)&s, 10);
-		if (*s)
-			return error(_("%s expects a numerical value"),
-				     optname(opt, opt->flags));
-	}
-	return 0;
-}
-
-static int git_commit_graph_write_config(const char *var, const char *value,
-					 void *cb)
-{
-	if (!strcmp(var, "commitgraph.maxnewfilters"))
-		write_opts.max_new_filters = git_config_int(var, value);
-	/*
-	 * No need to fall-back to 'git_default_config', since this was already
-	 * called in 'cmd_commit_graph()'.
-	 */
-	return 0;
-}
-
-static int graph_write(int argc, const char **argv)
-{
-	struct string_list pack_indexes = STRING_LIST_INIT_NODUP;
-	struct strbuf buf = STRBUF_INIT;
-	struct oidset commits = OIDSET_INIT;
-	struct object_directory *odb = NULL;
-	int result = 0;
-	enum commit_graph_write_flags flags = 0;
-	struct progress *progress = NULL;
-
-	static struct option builtin_commit_graph_write_options[] = {
-		OPT_STRING(0, "object-dir", &opts.obj_dir,
-			N_("dir"),
-			N_("The object directory to store the graph")),
-		OPT_BOOL(0, "reachable", &opts.reachable,
-			N_("start walk at all refs")),
-		OPT_BOOL(0, "stdin-packs", &opts.stdin_packs,
-			N_("scan pack-indexes listed by stdin for commits")),
-		OPT_BOOL(0, "stdin-commits", &opts.stdin_commits,
-			N_("start walk at commits listed by stdin")),
-		OPT_BOOL(0, "append", &opts.append,
-			N_("include all commits already in the commit-graph file")),
-		OPT_BOOL(0, "changed-paths", &opts.enable_changed_paths,
-			N_("enable computation for changed paths")),
-		OPT_BOOL(0, "progress", &opts.progress, N_("force progress reporting")),
-		OPT_CALLBACK_F(0, "split", &write_opts.split_flags, NULL,
-			N_("allow writing an incremental commit-graph file"),
-			PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
-			write_option_parse_split),
-		OPT_INTEGER(0, "max-commits", &write_opts.max_commits,
-			N_("maximum number of commits in a non-base split commit-graph")),
-		OPT_INTEGER(0, "size-multiple", &write_opts.size_multiple,
-			N_("maximum ratio between two levels of a split commit-graph")),
-		OPT_EXPIRY_DATE(0, "expire-time", &write_opts.expire_time,
-			N_("only expire files older than a given date-time")),
-		OPT_CALLBACK_F(0, "max-new-filters", &write_opts.max_new_filters,
-			NULL, N_("maximum number of changed-path Bloom filters to compute"),
-			0, write_option_max_new_filters),
-		OPT_END(),
-	};
-
-	opts.progress = isatty(2);
-	opts.enable_changed_paths = -1;
-	write_opts.size_multiple = 2;
-	write_opts.max_commits = 0;
-	write_opts.expire_time = 0;
-	write_opts.max_new_filters = -1;
-
-	trace2_cmd_mode("write");
-
-	git_config(git_commit_graph_write_config, &opts);
-
-	argc = parse_options(argc, argv, NULL,
-			     builtin_commit_graph_write_options,
-			     builtin_commit_graph_write_usage, 0);
-
-	if (opts.reachable + opts.stdin_packs + opts.stdin_commits > 1)
-		die(_("use at most one of --reachable, --stdin-commits, or --stdin-packs"));
-	if (!opts.obj_dir)
-		opts.obj_dir = get_object_directory();
-	if (opts.append)
-		flags |= COMMIT_GRAPH_WRITE_APPEND;
-	if (opts.split)
-		flags |= COMMIT_GRAPH_WRITE_SPLIT;
-	if (opts.progress)
-		flags |= COMMIT_GRAPH_WRITE_PROGRESS;
-	if (!opts.enable_changed_paths)
-		flags |= COMMIT_GRAPH_NO_WRITE_BLOOM_FILTERS;
-	if (opts.enable_changed_paths == 1 ||
-	    git_env_bool(GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS, 0))
-		flags |= COMMIT_GRAPH_WRITE_BLOOM_FILTERS;
-
-	read_replace_refs = 0;
-	odb = find_odb(the_repository, opts.obj_dir);
-
-	if (opts.reachable) {
-		if (write_commit_graph_reachable(odb, flags, &write_opts))
-			return 1;
-		return 0;
-	}
-
-	if (opts.stdin_packs) {
-		while (strbuf_getline(&buf, stdin) != EOF)
-			string_list_append(&pack_indexes,
-					   strbuf_detach(&buf, NULL));
-	} else if (opts.stdin_commits) {
-		oidset_init(&commits, 0);
-		if (opts.progress)
-			progress = start_delayed_progress(
-				_("Collecting commits from input"), 0);
-
-		while (strbuf_getline(&buf, stdin) != EOF) {
-			if (read_one_commit(&commits, progress, buf.buf)) {
-				result = 1;
-				goto cleanup;
-			}
-		}
-
-		stop_progress(&progress);
-	}
-
-	if (write_commit_graph(odb,
-			       opts.stdin_packs ? &pack_indexes : NULL,
-			       opts.stdin_commits ? &commits : NULL,
-			       flags,
-			       &write_opts))
-		result = 1;
-
-cleanup:
-	string_list_clear(&pack_indexes, 0);
-	strbuf_release(&buf);
-	return result;
-}
-
-int cmd_commit_graph(int argc, const char **argv, const char *prefix)
-{
-	static struct option builtin_commit_graph_options[] = {
-		OPT_STRING(0, "object-dir", &opts.obj_dir,
-			N_("dir"),
-			N_("The object directory to store the graph")),
-		OPT_END(),
-	};
-
-	if (argc == 2 && !strcmp(argv[1], "-h"))
-		usage_with_options(builtin_commit_graph_usage,
-				   builtin_commit_graph_options);
-
-	git_config(git_default_config, NULL);
-	argc = parse_options(argc, argv, prefix,
-			     builtin_commit_graph_options,
-			     builtin_commit_graph_usage,
-			     PARSE_OPT_STOP_AT_NON_OPTION);
-
-	save_commit_buffer = 0;
-
-	if (argc > 0) {
-		if (!strcmp(argv[0], "verify"))
-			return graph_verify(argc, argv);
-		if (!strcmp(argv[0], "write"))
-			return graph_write(argc, argv);
-	}
-
-	usage_with_options(builtin_commit_graph_usage,
-			   builtin_commit_graph_options);
-}