git

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#include "builtin.h"
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#include "abspath.h"
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#include "gettext.h"
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#include "setup.h"
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#include "strvec.h"
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#include "parse-options.h"
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#include "pkt-line.h"
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#include "repository.h"
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#include "bundle.h"
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/*
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 * Basic handler for bundle files to connect repositories via sneakernet.
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 * Invocation must include action.
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 * This function can create a bundle or provide information on an existing
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 * bundle supporting "fetch", "pull", and "ls-remote".
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 */
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#define BUILTIN_BUNDLE_CREATE_USAGE \
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	N_("git bundle create [-q | --quiet | --progress]\n" \
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	   "                  [--version=<version>] <file> <git-rev-list-args>")
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#define BUILTIN_BUNDLE_VERIFY_USAGE \
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	N_("git bundle verify [-q | --quiet] <file>")
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#define BUILTIN_BUNDLE_LIST_HEADS_USAGE \
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	N_("git bundle list-heads <file> [<refname>...]")
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#define BUILTIN_BUNDLE_UNBUNDLE_USAGE \
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	N_("git bundle unbundle [--progress] <file> [<refname>...]")
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static char const * const builtin_bundle_usage[] = {
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	BUILTIN_BUNDLE_CREATE_USAGE,
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	BUILTIN_BUNDLE_VERIFY_USAGE,
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	BUILTIN_BUNDLE_LIST_HEADS_USAGE,
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	BUILTIN_BUNDLE_UNBUNDLE_USAGE,
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	NULL,
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};
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static const char * const builtin_bundle_create_usage[] = {
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	BUILTIN_BUNDLE_CREATE_USAGE,
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	NULL
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};
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static const char * const builtin_bundle_verify_usage[] = {
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	BUILTIN_BUNDLE_VERIFY_USAGE,
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	NULL
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};
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static const char * const builtin_bundle_list_heads_usage[] = {
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	BUILTIN_BUNDLE_LIST_HEADS_USAGE,
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	NULL
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};
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static const char * const builtin_bundle_unbundle_usage[] = {
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	BUILTIN_BUNDLE_UNBUNDLE_USAGE,
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	NULL
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};
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static int parse_options_cmd_bundle(int argc,
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		const char **argv,
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		const char* prefix,
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		const char * const usagestr[],
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		const struct option options[],
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		char **bundle_file) {
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	argc = parse_options(argc, argv, NULL, options, usagestr,
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			     PARSE_OPT_STOP_AT_NON_OPTION);
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	if (!argc)
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		usage_msg_opt(_("need a <file> argument"), usagestr, options);
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	*bundle_file = prefix_filename_except_for_dash(prefix, argv[0]);
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	return argc;
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}
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static int cmd_bundle_create(int argc, const char **argv, const char *prefix) {
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	struct strvec pack_opts = STRVEC_INIT;
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	int version = -1;
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	int ret;
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	struct option options[] = {
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		OPT_PASSTHRU_ARGV('q', "quiet", &pack_opts, NULL,
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				  N_("do not show progress meter"),
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				  PARSE_OPT_NOARG),
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		OPT_PASSTHRU_ARGV(0, "progress", &pack_opts, NULL,
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				  N_("show progress meter"),
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				  PARSE_OPT_NOARG),
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		OPT_PASSTHRU_ARGV(0, "all-progress", &pack_opts, NULL,
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				  N_("historical; same as --progress"),
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				  PARSE_OPT_NOARG | PARSE_OPT_HIDDEN),
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		OPT_PASSTHRU_ARGV(0, "all-progress-implied", &pack_opts, NULL,
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				  N_("historical; does nothing"),
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				  PARSE_OPT_NOARG | PARSE_OPT_HIDDEN),
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		OPT_INTEGER(0, "version", &version,
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			    N_("specify bundle format version")),
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		OPT_END()
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	};
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	char *bundle_file;
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	if (isatty(STDERR_FILENO))
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		strvec_push(&pack_opts, "--progress");
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	strvec_push(&pack_opts, "--all-progress-implied");
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	argc = parse_options_cmd_bundle(argc, argv, prefix,
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			builtin_bundle_create_usage, options, &bundle_file);
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	/* bundle internals use argv[1] as further parameters */
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	if (!startup_info->have_repository)
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		die(_("Need a repository to create a bundle."));
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	ret = !!create_bundle(the_repository, bundle_file, argc, argv, &pack_opts, version);
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	strvec_clear(&pack_opts);
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	free(bundle_file);
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	return ret;
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}
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/*
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 * Similar to read_bundle_header(), but handle "-" as stdin.
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 */
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static int open_bundle(const char *path, struct bundle_header *header,
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		       const char **name)
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{
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	if (!strcmp(path, "-")) {
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		if (name)
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			*name = "<stdin>";
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		return read_bundle_header_fd(0, header, "<stdin>");
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	}
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	if (name)
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		*name = path;
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	return read_bundle_header(path, header);
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}
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static int cmd_bundle_verify(int argc, const char **argv, const char *prefix) {
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	struct bundle_header header = BUNDLE_HEADER_INIT;
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	int bundle_fd = -1;
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	int quiet = 0;
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	int ret;
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	struct option options[] = {
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		OPT_BOOL('q', "quiet", &quiet,
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			    N_("do not show bundle details")),
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		OPT_END()
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	};
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	char *bundle_file;
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	const char *name;
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	argc = parse_options_cmd_bundle(argc, argv, prefix,
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			builtin_bundle_verify_usage, options, &bundle_file);
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	/* bundle internals use argv[1] as further parameters */
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	if (!startup_info->have_repository) {
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		ret = error(_("need a repository to verify a bundle"));
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		goto cleanup;
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	}
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	if ((bundle_fd = open_bundle(bundle_file, &header, &name)) < 0) {
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		ret = 1;
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		goto cleanup;
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	}
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	close(bundle_fd);
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	if (verify_bundle(the_repository, &header,
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			  quiet ? VERIFY_BUNDLE_QUIET : VERIFY_BUNDLE_VERBOSE)) {
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		ret = 1;
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		goto cleanup;
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	}
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	fprintf(stderr, _("%s is okay\n"), name);
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	ret = 0;
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cleanup:
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	free(bundle_file);
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	bundle_header_release(&header);
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	return ret;
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}
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static int cmd_bundle_list_heads(int argc, const char **argv, const char *prefix) {
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	struct bundle_header header = BUNDLE_HEADER_INIT;
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	int bundle_fd = -1;
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	int ret;
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	struct option options[] = {
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		OPT_END()
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	};
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	char *bundle_file;
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	argc = parse_options_cmd_bundle(argc, argv, prefix,
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			builtin_bundle_list_heads_usage, options, &bundle_file);
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	/* bundle internals use argv[1] as further parameters */
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	if ((bundle_fd = open_bundle(bundle_file, &header, NULL)) < 0) {
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		ret = 1;
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		goto cleanup;
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	}
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	close(bundle_fd);
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	ret = !!list_bundle_refs(&header, argc, argv);
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cleanup:
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	free(bundle_file);
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	bundle_header_release(&header);
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	return ret;
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}
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static int cmd_bundle_unbundle(int argc, const char **argv, const char *prefix) {
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	struct bundle_header header = BUNDLE_HEADER_INIT;
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	int bundle_fd = -1;
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	int ret;
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	int progress = isatty(2);
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	struct option options[] = {
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		OPT_BOOL(0, "progress", &progress,
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			 N_("show progress meter")),
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		OPT_END()
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	};
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	char *bundle_file;
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	struct strvec extra_index_pack_args = STRVEC_INIT;
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	argc = parse_options_cmd_bundle(argc, argv, prefix,
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			builtin_bundle_unbundle_usage, options, &bundle_file);
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	/* bundle internals use argv[1] as further parameters */
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	if (!startup_info->have_repository)
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		die(_("Need a repository to unbundle."));
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	if ((bundle_fd = open_bundle(bundle_file, &header, NULL)) < 0) {
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		ret = 1;
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		goto cleanup;
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	}
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	if (progress)
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		strvec_pushl(&extra_index_pack_args, "-v", "--progress-title",
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			     _("Unbundling objects"), NULL);
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	ret = !!unbundle(the_repository, &header, bundle_fd,
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			 &extra_index_pack_args, 0) ||
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		list_bundle_refs(&header, argc, argv);
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	bundle_header_release(&header);
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cleanup:
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	free(bundle_file);
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	return ret;
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}
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int cmd_bundle(int argc, const char **argv, const char *prefix)
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{
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	parse_opt_subcommand_fn *fn = NULL;
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	struct option options[] = {
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		OPT_SUBCOMMAND("create", &fn, cmd_bundle_create),
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		OPT_SUBCOMMAND("verify", &fn, cmd_bundle_verify),
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		OPT_SUBCOMMAND("list-heads", &fn, cmd_bundle_list_heads),
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		OPT_SUBCOMMAND("unbundle", &fn, cmd_bundle_unbundle),
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		OPT_END()
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	};
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	argc = parse_options(argc, argv, prefix, options, builtin_bundle_usage,
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			     0);
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	packet_trace_identity("bundle");
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	return !!fn(argc, argv, prefix);
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}
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