git

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#include "builtin.h"
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#include "commit.h"
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#include "config.h"
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#include "gettext.h"
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#include "object.h"
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#include "parse-options.h"
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#include "ref-filter.h"
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#include "strbuf.h"
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#include "strvec.h"
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static char const * const for_each_ref_usage[] = {
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	N_("git for-each-ref [<options>] [<pattern>]"),
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	N_("git for-each-ref [--points-at <object>]"),
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	N_("git for-each-ref [--merged [<commit>]] [--no-merged [<commit>]]"),
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	N_("git for-each-ref [--contains [<commit>]] [--no-contains [<commit>]]"),
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	NULL
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};
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int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
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{
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	struct ref_sorting *sorting;
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	struct string_list sorting_options = STRING_LIST_INIT_DUP;
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	int icase = 0, include_root_refs = 0, from_stdin = 0;
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	struct ref_filter filter = REF_FILTER_INIT;
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	struct ref_format format = REF_FORMAT_INIT;
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	unsigned int flags = FILTER_REFS_REGULAR;
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	struct strvec vec = STRVEC_INIT;
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	struct option opts[] = {
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		OPT_BIT('s', "shell", &format.quote_style,
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			N_("quote placeholders suitably for shells"), QUOTE_SHELL),
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		OPT_BIT('p', "perl",  &format.quote_style,
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			N_("quote placeholders suitably for perl"), QUOTE_PERL),
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		OPT_BIT(0 , "python", &format.quote_style,
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			N_("quote placeholders suitably for python"), QUOTE_PYTHON),
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		OPT_BIT(0 , "tcl",  &format.quote_style,
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			N_("quote placeholders suitably for Tcl"), QUOTE_TCL),
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		OPT_BOOL(0, "omit-empty",  &format.array_opts.omit_empty,
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			N_("do not output a newline after empty formatted refs")),
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		OPT_GROUP(""),
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		OPT_INTEGER( 0 , "count", &format.array_opts.max_count, N_("show only <n> matched refs")),
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		OPT_STRING(  0 , "format", &format.format, N_("format"), N_("format to use for the output")),
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		OPT__COLOR(&format.use_color, N_("respect format colors")),
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		OPT_REF_FILTER_EXCLUDE(&filter),
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		OPT_REF_SORT(&sorting_options),
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		OPT_CALLBACK(0, "points-at", &filter.points_at,
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			     N_("object"), N_("print only refs which points at the given object"),
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			     parse_opt_object_name),
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		OPT_MERGED(&filter, N_("print only refs that are merged")),
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		OPT_NO_MERGED(&filter, N_("print only refs that are not merged")),
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		OPT_CONTAINS(&filter.with_commit, N_("print only refs which contain the commit")),
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		OPT_NO_CONTAINS(&filter.no_commit, N_("print only refs which don't contain the commit")),
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		OPT_BOOL(0, "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
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		OPT_BOOL(0, "stdin", &from_stdin, N_("read reference patterns from stdin")),
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		OPT_BOOL(0, "include-root-refs", &include_root_refs, N_("also include HEAD ref and pseudorefs")),
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		OPT_END(),
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	};
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	format.format = "%(objectname) %(objecttype)\t%(refname)";
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	git_config(git_default_config, NULL);
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	/* Set default (refname) sorting */
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	string_list_append(&sorting_options, "refname");
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	parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0);
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	if (format.array_opts.max_count < 0) {
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		error("invalid --count argument: `%d'", format.array_opts.max_count);
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		usage_with_options(for_each_ref_usage, opts);
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	}
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	if (HAS_MULTI_BITS(format.quote_style)) {
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		error("more than one quoting style?");
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		usage_with_options(for_each_ref_usage, opts);
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	}
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	if (verify_ref_format(&format))
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		usage_with_options(for_each_ref_usage, opts);
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	sorting = ref_sorting_options(&sorting_options);
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	ref_sorting_set_sort_flags_all(sorting, REF_SORTING_ICASE, icase);
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	filter.ignore_case = icase;
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	if (from_stdin) {
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		struct strbuf line = STRBUF_INIT;
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		if (argv[0])
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			die(_("unknown arguments supplied with --stdin"));
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		while (strbuf_getline(&line, stdin) != EOF)
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			strvec_push(&vec, line.buf);
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		strbuf_release(&line);
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		/* vec.v is NULL-terminated, just like 'argv'. */
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		filter.name_patterns = vec.v;
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	} else {
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		filter.name_patterns = argv;
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	}
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	if (include_root_refs)
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		flags |= FILTER_REFS_ROOT_REFS | FILTER_REFS_DETACHED_HEAD;
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	filter.match_as_path = 1;
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	filter_and_format_refs(&filter, flags, sorting, &format);
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	ref_filter_clear(&filter);
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	ref_sorting_release(sorting);
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	strvec_clear(&vec);
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	return 0;
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}
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