Squashed 'third_party/git/' content from commit cb71568594

git-subtree-dir: third_party/git
git-subtree-split: cb715685942260375e1eb8153b0768a376e4ece7

t/helper/test-tool.c

@@ -0,0 +1,116 @@
+#include "git-compat-util.h"
+#include "test-tool.h"
+#include "trace2.h"
+#include "parse-options.h"
+
+static const char * const test_tool_usage[] = {
+	"test-tool [-C <directory>] <command [<arguments>...]]",
+	NULL
+};
+
+struct test_cmd {
+	const char *name;
+	int (*fn)(int argc, const char **argv);
+};
+
+static struct test_cmd cmds[] = {
+	{ "chmtime", cmd__chmtime },
+	{ "config", cmd__config },
+	{ "ctype", cmd__ctype },
+	{ "date", cmd__date },
+	{ "delta", cmd__delta },
+	{ "dir-iterator", cmd__dir_iterator },
+	{ "drop-caches", cmd__drop_caches },
+	{ "dump-cache-tree", cmd__dump_cache_tree },
+	{ "dump-fsmonitor", cmd__dump_fsmonitor },
+	{ "dump-split-index", cmd__dump_split_index },
+	{ "dump-untracked-cache", cmd__dump_untracked_cache },
+	{ "example-decorate", cmd__example_decorate },
+	{ "genrandom", cmd__genrandom },
+	{ "genzeros", cmd__genzeros },
+	{ "hashmap", cmd__hashmap },
+	{ "hash-speed", cmd__hash_speed },
+	{ "index-version", cmd__index_version },
+	{ "json-writer", cmd__json_writer },
+	{ "lazy-init-name-hash", cmd__lazy_init_name_hash },
+	{ "match-trees", cmd__match_trees },
+	{ "mergesort", cmd__mergesort },
+	{ "mktemp", cmd__mktemp },
+	{ "oidmap", cmd__oidmap },
+	{ "online-cpus", cmd__online_cpus },
+	{ "parse-options", cmd__parse_options },
+	{ "path-utils", cmd__path_utils },
+	{ "pkt-line", cmd__pkt_line },
+	{ "prio-queue", cmd__prio_queue },
+	{ "reach", cmd__reach },
+	{ "read-cache", cmd__read_cache },
+	{ "read-midx", cmd__read_midx },
+	{ "ref-store", cmd__ref_store },
+	{ "regex", cmd__regex },
+	{ "repository", cmd__repository },
+	{ "revision-walking", cmd__revision_walking },
+	{ "run-command", cmd__run_command },
+	{ "scrap-cache-tree", cmd__scrap_cache_tree },
+	{ "serve-v2", cmd__serve_v2 },
+	{ "sha1", cmd__sha1 },
+	{ "sha1-array", cmd__sha1_array },
+	{ "sha256", cmd__sha256 },
+	{ "sigchain", cmd__sigchain },
+	{ "strcmp-offset", cmd__strcmp_offset },
+	{ "string-list", cmd__string_list },
+	{ "submodule-config", cmd__submodule_config },
+	{ "submodule-nested-repo-config", cmd__submodule_nested_repo_config },
+	{ "subprocess", cmd__subprocess },
+	{ "trace2", cmd__trace2 },
+	{ "urlmatch-normalization", cmd__urlmatch_normalization },
+	{ "xml-encode", cmd__xml_encode },
+	{ "wildmatch", cmd__wildmatch },
+#ifdef GIT_WINDOWS_NATIVE
+	{ "windows-named-pipe", cmd__windows_named_pipe },
+#endif
+	{ "write-cache", cmd__write_cache },
+};
+
+static NORETURN void die_usage(void)
+{
+	size_t i;
+
+	fprintf(stderr, "usage: test-tool <toolname> [args]\n");
+	for (i = 0; i < ARRAY_SIZE(cmds); i++)
+		fprintf(stderr, "  %s\n", cmds[i].name);
+	exit(128);
+}
+
+int cmd_main(int argc, const char **argv)
+{
+	int i;
+	const char *working_directory = NULL;
+	struct option options[] = {
+		OPT_STRING('C', NULL, &working_directory, "directory",
+			   "change the working directory"),
+		OPT_END()
+	};
+
+	BUG_exit_code = 99;
+	argc = parse_options(argc, argv, NULL, options, test_tool_usage,
+			     PARSE_OPT_STOP_AT_NON_OPTION |
+			     PARSE_OPT_KEEP_ARGV0);
+
+	if (argc < 2)
+		die_usage();
+
+	if (working_directory && chdir(working_directory) < 0)
+		die("Could not cd to '%s'", working_directory);
+
+	for (i = 0; i < ARRAY_SIZE(cmds); i++) {
+		if (!strcmp(cmds[i].name, argv[1])) {
+			argv++;
+			argc--;
+			trace2_cmd_name(cmds[i].name);
+			trace2_cmd_list_config();
+			return cmds[i].fn(argc, argv);
+		}
+	}
+	error("there is no tool named '%s'", argv[1]);
+	die_usage();
+}