Move 'builtin-*' into a 'builtin/' subdirectory

This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of

	[torvalds@nehalem git]$ em buil<tab>
	Display all 180 possibilities? (y or n)
	[torvalds@nehalem git]$ em builtin-sh
	builtin-shortlog.c     builtin-show-branch.c  builtin-show-ref.c
	builtin-shortlog.o     builtin-show-branch.o  builtin-show-ref.o
	[torvalds@nehalem git]$ em builtin-shor<tab>
	builtin-shortlog.c  builtin-shortlog.o
	[torvalds@nehalem git]$ em builtin-shortlog.c

you get

	[torvalds@nehalem git]$ em buil<tab>		[type]
	builtin/   builtin.h
	[torvalds@nehalem git]$ em builtin		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/sh<tab>	[type]
	shortlog.c     shortlog.o     show-branch.c  show-branch.o  show-ref.c     show-ref.o
	[torvalds@nehalem git]$ em builtin/sho		[auto-completes to]
	[torvalds@nehalem git]$ em builtin/shor<tab>	[type]
	shortlog.c  shortlog.o
	[torvalds@nehalem git]$ em builtin/shortlog.c

which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.

NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead.  I think bash has some cut-off
around 100 choices or something.

So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion.  But you can
simulate that by using 'ls' instead, or something similar.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 1352 deletions

diff --git a/builtin-log.c b/builtin-log.c
deleted file mode 100644
index e0d5caa61b..0000000000
--- a/builtin-log.c
+++ /dev/null
@@ -1,1352 +0,0 @@
-/*
- * Builtin "git log" and related commands (show, whatchanged)
- *
- * (C) Copyright 2006 Linus Torvalds
- *		 2006 Junio Hamano
- */
-#include "cache.h"
-#include "color.h"
-#include "commit.h"
-#include "diff.h"
-#include "revision.h"
-#include "log-tree.h"
-#include "builtin.h"
-#include "tag.h"
-#include "reflog-walk.h"
-#include "patch-ids.h"
-#include "run-command.h"
-#include "shortlog.h"
-#include "remote.h"
-#include "string-list.h"
-#include "parse-options.h"
-
-/* Set a default date-time format for git log ("log.date" config variable) */
-static const char *default_date_mode = NULL;
-
-static int default_show_root = 1;
-static const char *fmt_patch_subject_prefix = "PATCH";
-static const char *fmt_pretty;
-
-static const char * const builtin_log_usage =
-	"git log [<options>] [<since>..<until>] [[--] <path>...]\n"
-	"   or: git show [options] <object>...";
-
-static void cmd_log_init(int argc, const char **argv, const char *prefix,
-		      struct rev_info *rev)
-{
-	int i;
-	int decoration_style = 0;
-
-	rev->abbrev = DEFAULT_ABBREV;
-	rev->commit_format = CMIT_FMT_DEFAULT;
-	if (fmt_pretty)
-		get_commit_format(fmt_pretty, rev);
-	rev->verbose_header = 1;
-	DIFF_OPT_SET(&rev->diffopt, RECURSIVE);
-	rev->show_root_diff = default_show_root;
-	rev->subject_prefix = fmt_patch_subject_prefix;
-	DIFF_OPT_SET(&rev->diffopt, ALLOW_TEXTCONV);
-
-	if (default_date_mode)
-		rev->date_mode = parse_date_format(default_date_mode);
-
-	/*
-	 * Check for -h before setup_revisions(), or "git log -h" will
-	 * fail when run without a git directory.
-	 */
-	if (argc == 2 && !strcmp(argv[1], "-h"))
-		usage(builtin_log_usage);
-	argc = setup_revisions(argc, argv, rev, "HEAD");
-
-	if (!rev->show_notes_given && !rev->pretty_given)
-		rev->show_notes = 1;
-
-	if (rev->diffopt.pickaxe || rev->diffopt.filter)
-		rev->always_show_header = 0;
-	if (DIFF_OPT_TST(&rev->diffopt, FOLLOW_RENAMES)) {
-		rev->always_show_header = 0;
-		if (rev->diffopt.nr_paths != 1)
-			usage("git logs can only follow renames on one pathname at a time");
-	}
-	for (i = 1; i < argc; i++) {
-		const char *arg = argv[i];
-		if (!strcmp(arg, "--decorate")) {
-			decoration_style = DECORATE_SHORT_REFS;
-		} else if (!prefixcmp(arg, "--decorate=")) {
-			const char *v = skip_prefix(arg, "--decorate=");
-			if (!strcmp(v, "full"))
-				decoration_style = DECORATE_FULL_REFS;
-			else if (!strcmp(v, "short"))
-				decoration_style = DECORATE_SHORT_REFS;
-			else
-				die("invalid --decorate option: %s", arg);
-		} else if (!strcmp(arg, "--source")) {
-			rev->show_source = 1;
-		} else if (!strcmp(arg, "-h")) {
-			usage(builtin_log_usage);
-		} else
-			die("unrecognized argument: %s", arg);
-	}
-	if (decoration_style) {
-		rev->show_decorations = 1;
-		load_ref_decorations(decoration_style);
-	}
-}
-
-/*
- * This gives a rough estimate for how many commits we
- * will print out in the list.
- */
-static int estimate_commit_count(struct rev_info *rev, struct commit_list *list)
-{
-	int n = 0;
-
-	while (list) {
-		struct commit *commit = list->item;
-		unsigned int flags = commit->object.flags;
-		list = list->next;
-		if (!(flags & (TREESAME | UNINTERESTING)))
-			n++;
-	}
-	return n;
-}
-
-static void show_early_header(struct rev_info *rev, const char *stage, int nr)
-{
-	if (rev->shown_one) {
-		rev->shown_one = 0;
-		if (rev->commit_format != CMIT_FMT_ONELINE)
-			putchar(rev->diffopt.line_termination);
-	}
-	printf("Final output: %d %s\n", nr, stage);
-}
-
-static struct itimerval early_output_timer;
-
-static void log_show_early(struct rev_info *revs, struct commit_list *list)
-{
-	int i = revs->early_output;
-	int show_header = 1;
-
-	sort_in_topological_order(&list, revs->lifo);
-	while (list && i) {
-		struct commit *commit = list->item;
-		switch (simplify_commit(revs, commit)) {
-		case commit_show:
-			if (show_header) {
-				int n = estimate_commit_count(revs, list);
-				show_early_header(revs, "incomplete", n);
-				show_header = 0;
-			}
-			log_tree_commit(revs, commit);
-			i--;
-			break;
-		case commit_ignore:
-			break;
-		case commit_error:
-			return;
-		}
-		list = list->next;
-	}
-
-	/* Did we already get enough commits for the early output? */
-	if (!i)
-		return;
-
-	/*
-	 * ..if no, then repeat it twice a second until we
-	 * do.
-	 *
-	 * NOTE! We don't use "it_interval", because if the
-	 * reader isn't listening, we want our output to be
-	 * throttled by the writing, and not have the timer
-	 * trigger every second even if we're blocked on a
-	 * reader!
-	 */
-	early_output_timer.it_value.tv_sec = 0;
-	early_output_timer.it_value.tv_usec = 500000;
-	setitimer(ITIMER_REAL, &early_output_timer, NULL);
-}
-
-static void early_output(int signal)
-{
-	show_early_output = log_show_early;
-}
-
-static void setup_early_output(struct rev_info *rev)
-{
-	struct sigaction sa;
-
-	/*
-	 * Set up the signal handler, minimally intrusively:
-	 * we only set a single volatile integer word (not
-	 * using sigatomic_t - trying to avoid unnecessary
-	 * system dependencies and headers), and using
-	 * SA_RESTART.
-	 */
-	memset(&sa, 0, sizeof(sa));
-	sa.sa_handler = early_output;
-	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = SA_RESTART;
-	sigaction(SIGALRM, &sa, NULL);
-
-	/*
-	 * If we can get the whole output in less than a
-	 * tenth of a second, don't even bother doing the
-	 * early-output thing..
-	 *
-	 * This is a one-time-only trigger.
-	 */
-	early_output_timer.it_value.tv_sec = 0;
-	early_output_timer.it_value.tv_usec = 100000;
-	setitimer(ITIMER_REAL, &early_output_timer, NULL);
-}
-
-static void finish_early_output(struct rev_info *rev)
-{
-	int n = estimate_commit_count(rev, rev->commits);
-	signal(SIGALRM, SIG_IGN);
-	show_early_header(rev, "done", n);
-}
-
-static int cmd_log_walk(struct rev_info *rev)
-{
-	struct commit *commit;
-
-	if (rev->early_output)
-		setup_early_output(rev);
-
-	if (prepare_revision_walk(rev))
-		die("revision walk setup failed");
-
-	if (rev->early_output)
-		finish_early_output(rev);
-
-	/*
-	 * For --check and --exit-code, the exit code is based on CHECK_FAILED
-	 * and HAS_CHANGES being accumulated in rev->diffopt, so be careful to
-	 * retain that state information if replacing rev->diffopt in this loop
-	 */
-	while ((commit = get_revision(rev)) != NULL) {
-		log_tree_commit(rev, commit);
-		if (!rev->reflog_info) {
-			/* we allow cycles in reflog ancestry */
-			free(commit->buffer);
-			commit->buffer = NULL;
-		}
-		free_commit_list(commit->parents);
-		commit->parents = NULL;
-	}
-	if (rev->diffopt.output_format & DIFF_FORMAT_CHECKDIFF &&
-	    DIFF_OPT_TST(&rev->diffopt, CHECK_FAILED)) {
-		return 02;
-	}
-	return diff_result_code(&rev->diffopt, 0);
-}
-
-static int git_log_config(const char *var, const char *value, void *cb)
-{
-	if (!strcmp(var, "format.pretty"))
-		return git_config_string(&fmt_pretty, var, value);
-	if (!strcmp(var, "format.subjectprefix"))
-		return git_config_string(&fmt_patch_subject_prefix, var, value);
-	if (!strcmp(var, "log.date"))
-		return git_config_string(&default_date_mode, var, value);
-	if (!strcmp(var, "log.showroot")) {
-		default_show_root = git_config_bool(var, value);
-		return 0;
-	}
-	return git_diff_ui_config(var, value, cb);
-}
-
-int cmd_whatchanged(int argc, const char **argv, const char *prefix)
-{
-	struct rev_info rev;
-
-	git_config(git_log_config, NULL);
-
-	if (diff_use_color_default == -1)
-		diff_use_color_default = git_use_color_default;
-
-	init_revisions(&rev, prefix);
-	rev.diff = 1;
-	rev.simplify_history = 0;
-	cmd_log_init(argc, argv, prefix, &rev);
-	if (!rev.diffopt.output_format)
-		rev.diffopt.output_format = DIFF_FORMAT_RAW;
-	return cmd_log_walk(&rev);
-}
-
-static void show_tagger(char *buf, int len, struct rev_info *rev)
-{
-	struct strbuf out = STRBUF_INIT;
-
-	pp_user_info("Tagger", rev->commit_format, &out, buf, rev->date_mode,
-		git_log_output_encoding ?
-		git_log_output_encoding: git_commit_encoding);
-	printf("%s", out.buf);
-	strbuf_release(&out);
-}
-
-static int show_object(const unsigned char *sha1, int show_tag_object,
-	struct rev_info *rev)
-{
-	unsigned long size;
-	enum object_type type;
-	char *buf = read_sha1_file(sha1, &type, &size);
-	int offset = 0;
-
-	if (!buf)
-		return error("Could not read object %s", sha1_to_hex(sha1));
-
-	if (show_tag_object)
-		while (offset < size && buf[offset] != '\n') {
-			int new_offset = offset + 1;
-			while (new_offset < size && buf[new_offset++] != '\n')
-				; /* do nothing */
-			if (!prefixcmp(buf + offset, "tagger "))
-				show_tagger(buf + offset + 7,
-					    new_offset - offset - 7, rev);
-			offset = new_offset;
-		}
-
-	if (offset < size)
-		fwrite(buf + offset, size - offset, 1, stdout);
-	free(buf);
-	return 0;
-}
-
-static int show_tree_object(const unsigned char *sha1,
-		const char *base, int baselen,
-		const char *pathname, unsigned mode, int stage, void *context)
-{
-	printf("%s%s\n", pathname, S_ISDIR(mode) ? "/" : "");
-	return 0;
-}
-
-int cmd_show(int argc, const char **argv, const char *prefix)
-{
-	struct rev_info rev;
-	struct object_array_entry *objects;
-	int i, count, ret = 0;
-
-	git_config(git_log_config, NULL);
-
-	if (diff_use_color_default == -1)
-		diff_use_color_default = git_use_color_default;
-
-	init_revisions(&rev, prefix);
-	rev.diff = 1;
-	rev.combine_merges = 1;
-	rev.dense_combined_merges = 1;
-	rev.always_show_header = 1;
-	rev.ignore_merges = 0;
-	rev.no_walk = 1;
-	cmd_log_init(argc, argv, prefix, &rev);
-
-	count = rev.pending.nr;
-	objects = rev.pending.objects;
-	for (i = 0; i < count && !ret; i++) {
-		struct object *o = objects[i].item;
-		const char *name = objects[i].name;
-		switch (o->type) {
-		case OBJ_BLOB:
-			ret = show_object(o->sha1, 0, NULL);
-			break;
-		case OBJ_TAG: {
-			struct tag *t = (struct tag *)o;
-
-			if (rev.shown_one)
-				putchar('\n');
-			printf("%stag %s%s\n",
-					diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
-					t->tag,
-					diff_get_color_opt(&rev.diffopt, DIFF_RESET));
-			ret = show_object(o->sha1, 1, &rev);
-			rev.shown_one = 1;
-			if (ret)
-				break;
-			o = parse_object(t->tagged->sha1);
-			if (!o)
-				ret = error("Could not read object %s",
-					    sha1_to_hex(t->tagged->sha1));
-			objects[i].item = o;
-			i--;
-			break;
-		}
-		case OBJ_TREE:
-			if (rev.shown_one)
-				putchar('\n');
-			printf("%stree %s%s\n\n",
-					diff_get_color_opt(&rev.diffopt, DIFF_COMMIT),
-					name,
-					diff_get_color_opt(&rev.diffopt, DIFF_RESET));
-			read_tree_recursive((struct tree *)o, "", 0, 0, NULL,
-					show_tree_object, NULL);
-			rev.shown_one = 1;
-			break;
-		case OBJ_COMMIT:
-			rev.pending.nr = rev.pending.alloc = 0;
-			rev.pending.objects = NULL;
-			add_object_array(o, name, &rev.pending);
-			ret = cmd_log_walk(&rev);
-			break;
-		default:
-			ret = error("Unknown type: %d", o->type);
-		}
-	}
-	free(objects);
-	return ret;
-}
-
-/*
- * This is equivalent to "git log -g --abbrev-commit --pretty=oneline"
- */
-int cmd_log_reflog(int argc, const char **argv, const char *prefix)
-{
-	struct rev_info rev;
-
-	git_config(git_log_config, NULL);
-
-	if (diff_use_color_default == -1)
-		diff_use_color_default = git_use_color_default;
-
-	init_revisions(&rev, prefix);
-	init_reflog_walk(&rev.reflog_info);
-	rev.abbrev_commit = 1;
-	rev.verbose_header = 1;
-	cmd_log_init(argc, argv, prefix, &rev);
-
-	/*
-	 * This means that we override whatever commit format the user gave
-	 * on the cmd line.  Sad, but cmd_log_init() currently doesn't
-	 * allow us to set a different default.
-	 */
-	rev.commit_format = CMIT_FMT_ONELINE;
-	rev.use_terminator = 1;
-	rev.always_show_header = 1;
-
-	/*
-	 * We get called through "git reflog", so unlike the other log
-	 * routines, we need to set up our pager manually..
-	 */
-	setup_pager();
-
-	return cmd_log_walk(&rev);
-}
-
-int cmd_log(int argc, const char **argv, const char *prefix)
-{
-	struct rev_info rev;
-
-	git_config(git_log_config, NULL);
-
-	if (diff_use_color_default == -1)
-		diff_use_color_default = git_use_color_default;
-
-	init_revisions(&rev, prefix);
-	rev.always_show_header = 1;
-	cmd_log_init(argc, argv, prefix, &rev);
-	return cmd_log_walk(&rev);
-}
-
-/* format-patch */
-
-static const char *fmt_patch_suffix = ".patch";
-static int numbered = 0;
-static int auto_number = 1;
-
-static char *default_attach = NULL;
-
-static char **extra_hdr;
-static int extra_hdr_nr;
-static int extra_hdr_alloc;
-
-static char **extra_to;
-static int extra_to_nr;
-static int extra_to_alloc;
-
-static char **extra_cc;
-static int extra_cc_nr;
-static int extra_cc_alloc;
-
-static void add_header(const char *value)
-{
-	int len = strlen(value);
-	while (len && value[len - 1] == '\n')
-		len--;
-	if (!strncasecmp(value, "to: ", 4)) {
-		ALLOC_GROW(extra_to, extra_to_nr + 1, extra_to_alloc);
-		extra_to[extra_to_nr++] = xstrndup(value + 4, len - 4);
-		return;
-	}
-	if (!strncasecmp(value, "cc: ", 4)) {
-		ALLOC_GROW(extra_cc, extra_cc_nr + 1, extra_cc_alloc);
-		extra_cc[extra_cc_nr++] = xstrndup(value + 4, len - 4);
-		return;
-	}
-	ALLOC_GROW(extra_hdr, extra_hdr_nr + 1, extra_hdr_alloc);
-	extra_hdr[extra_hdr_nr++] = xstrndup(value, len);
-}
-
-#define THREAD_SHALLOW 1
-#define THREAD_DEEP 2
-static int thread = 0;
-static int do_signoff = 0;
-
-static int git_format_config(const char *var, const char *value, void *cb)
-{
-	if (!strcmp(var, "format.headers")) {
-		if (!value)
-			die("format.headers without value");
-		add_header(value);
-		return 0;
-	}
-	if (!strcmp(var, "format.suffix"))
-		return git_config_string(&fmt_patch_suffix, var, value);
-	if (!strcmp(var, "format.cc")) {
-		if (!value)
-			return config_error_nonbool(var);
-		ALLOC_GROW(extra_cc, extra_cc_nr + 1, extra_cc_alloc);
-		extra_cc[extra_cc_nr++] = xstrdup(value);
-		return 0;
-	}
-	if (!strcmp(var, "diff.color") || !strcmp(var, "color.diff")) {
-		return 0;
-	}
-	if (!strcmp(var, "format.numbered")) {
-		if (value && !strcasecmp(value, "auto")) {
-			auto_number = 1;
-			return 0;
-		}
-		numbered = git_config_bool(var, value);
-		auto_number = auto_number && numbered;
-		return 0;
-	}
-	if (!strcmp(var, "format.attach")) {
-		if (value && *value)
-			default_attach = xstrdup(value);
-		else
-			default_attach = xstrdup(git_version_string);
-		return 0;
-	}
-	if (!strcmp(var, "format.thread")) {
-		if (value && !strcasecmp(value, "deep")) {
-			thread = THREAD_DEEP;
-			return 0;
-		}
-		if (value && !strcasecmp(value, "shallow")) {
-			thread = THREAD_SHALLOW;
-			return 0;
-		}
-		thread = git_config_bool(var, value) && THREAD_SHALLOW;
-		return 0;
-	}
-	if (!strcmp(var, "format.signoff")) {
-		do_signoff = git_config_bool(var, value);
-		return 0;
-	}
-
-	return git_log_config(var, value, cb);
-}
-
-static FILE *realstdout = NULL;
-static const char *output_directory = NULL;
-static int outdir_offset;
-
-static int reopen_stdout(struct commit *commit, struct rev_info *rev)
-{
-	struct strbuf filename = STRBUF_INIT;
-	int suffix_len = strlen(fmt_patch_suffix) + 1;
-
-	if (output_directory) {
-		strbuf_addstr(&filename, output_directory);
-		if (filename.len >=
-		    PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len)
-			return error("name of output directory is too long");
-		if (filename.buf[filename.len - 1] != '/')
-			strbuf_addch(&filename, '/');
-	}
-
-	get_patch_filename(commit, rev->nr, fmt_patch_suffix, &filename);
-
-	if (!DIFF_OPT_TST(&rev->diffopt, QUICK))
-		fprintf(realstdout, "%s\n", filename.buf + outdir_offset);
-
-	if (freopen(filename.buf, "w", stdout) == NULL)
-		return error("Cannot open patch file %s", filename.buf);
-
-	strbuf_release(&filename);
-	return 0;
-}
-
-static void get_patch_ids(struct rev_info *rev, struct patch_ids *ids, const char *prefix)
-{
-	struct rev_info check_rev;
-	struct commit *commit;
-	struct object *o1, *o2;
-	unsigned flags1, flags2;
-
-	if (rev->pending.nr != 2)
-		die("Need exactly one range.");
-
-	o1 = rev->pending.objects[0].item;
-	flags1 = o1->flags;
-	o2 = rev->pending.objects[1].item;
-	flags2 = o2->flags;
-
-	if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING))
-		die("Not a range.");
-
-	init_patch_ids(ids);
-
-	/* given a range a..b get all patch ids for b..a */
-	init_revisions(&check_rev, prefix);
-	o1->flags ^= UNINTERESTING;
-	o2->flags ^= UNINTERESTING;
-	add_pending_object(&check_rev, o1, "o1");
-	add_pending_object(&check_rev, o2, "o2");
-	if (prepare_revision_walk(&check_rev))
-		die("revision walk setup failed");
-
-	while ((commit = get_revision(&check_rev)) != NULL) {
-		/* ignore merges */
-		if (commit->parents && commit->parents->next)
-			continue;
-
-		add_commit_patch_id(commit, ids);
-	}
-
-	/* reset for next revision walk */
-	clear_commit_marks((struct commit *)o1,
-			SEEN | UNINTERESTING | SHOWN | ADDED);
-	clear_commit_marks((struct commit *)o2,
-			SEEN | UNINTERESTING | SHOWN | ADDED);
-	o1->flags = flags1;
-	o2->flags = flags2;
-}
-
-static void gen_message_id(struct rev_info *info, char *base)
-{
-	const char *committer = git_committer_info(IDENT_WARN_ON_NO_NAME);
-	const char *email_start = strrchr(committer, '<');
-	const char *email_end = strrchr(committer, '>');
-	struct strbuf buf = STRBUF_INIT;
-	if (!email_start || !email_end || email_start > email_end - 1)
-		die("Could not extract email from committer identity.");
-	strbuf_addf(&buf, "%s.%lu.git.%.*s", base,
-		    (unsigned long) time(NULL),
-		    (int)(email_end - email_start - 1), email_start + 1);
-	info->message_id = strbuf_detach(&buf, NULL);
-}
-
-static void make_cover_letter(struct rev_info *rev, int use_stdout,
-			      int numbered, int numbered_files,
-			      struct commit *origin,
-			      int nr, struct commit **list, struct commit *head)
-{
-	const char *committer;
-	const char *subject_start = NULL;
-	const char *body = "*** SUBJECT HERE ***\n\n*** BLURB HERE ***\n";
-	const char *msg;
-	const char *extra_headers = rev->extra_headers;
-	struct shortlog log;
-	struct strbuf sb = STRBUF_INIT;
-	int i;
-	const char *encoding = "UTF-8";
-	struct diff_options opts;
-	int need_8bit_cte = 0;
-	struct commit *commit = NULL;
-
-	if (rev->commit_format != CMIT_FMT_EMAIL)
-		die("Cover letter needs email format");
-
-	committer = git_committer_info(0);
-
-	if (!numbered_files) {
-		/*
-		 * We fake a commit for the cover letter so we get the filename
-		 * desired.
-		 */
-		commit = xcalloc(1, sizeof(*commit));
-		commit->buffer = xmalloc(400);
-		snprintf(commit->buffer, 400,
-			"tree 0000000000000000000000000000000000000000\n"
-			"parent %s\n"
-			"author %s\n"
-			"committer %s\n\n"
-			"cover letter\n",
-			sha1_to_hex(head->object.sha1), committer, committer);
-	}
-
-	if (!use_stdout && reopen_stdout(commit, rev))
-		return;
-
-	if (commit) {
-
-		free(commit->buffer);
-		free(commit);
-	}
-
-	log_write_email_headers(rev, head, &subject_start, &extra_headers,
-				&need_8bit_cte);
-
-	for (i = 0; !need_8bit_cte && i < nr; i++)
-		if (has_non_ascii(list[i]->buffer))
-			need_8bit_cte = 1;
-
-	msg = body;
-	pp_user_info(NULL, CMIT_FMT_EMAIL, &sb, committer, DATE_RFC2822,
-		     encoding);
-	pp_title_line(CMIT_FMT_EMAIL, &msg, &sb, subject_start, extra_headers,
-		      encoding, need_8bit_cte);
-	pp_remainder(CMIT_FMT_EMAIL, &msg, &sb, 0);
-	printf("%s\n", sb.buf);
-
-	strbuf_release(&sb);
-
-	shortlog_init(&log);
-	log.wrap_lines = 1;
-	log.wrap = 72;
-	log.in1 = 2;
-	log.in2 = 4;
-	for (i = 0; i < nr; i++)
-		shortlog_add_commit(&log, list[i]);
-
-	shortlog_output(&log);
-
-	/*
-	 * We can only do diffstat with a unique reference point
-	 */
-	if (!origin)
-		return;
-
-	memcpy(&opts, &rev->diffopt, sizeof(opts));
-	opts.output_format = DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
-
-	diff_setup_done(&opts);
-
-	diff_tree_sha1(origin->tree->object.sha1,
-		       head->tree->object.sha1,
-		       "", &opts);
-	diffcore_std(&opts);
-	diff_flush(&opts);
-
-	printf("\n");
-}
-
-static const char *clean_message_id(const char *msg_id)
-{
-	char ch;
-	const char *a, *z, *m;
-
-	m = msg_id;
-	while ((ch = *m) && (isspace(ch) || (ch == '<')))
-		m++;
-	a = m;
-	z = NULL;
-	while ((ch = *m)) {
-		if (!isspace(ch) && (ch != '>'))
-			z = m;
-		m++;
-	}
-	if (!z)
-		die("insane in-reply-to: %s", msg_id);
-	if (++z == m)
-		return a;
-	return xmemdupz(a, z - a);
-}
-
-static const char *set_outdir(const char *prefix, const char *output_directory)
-{
-	if (output_directory && is_absolute_path(output_directory))
-		return output_directory;
-
-	if (!prefix || !*prefix) {
-		if (output_directory)
-			return output_directory;
-		/* The user did not explicitly ask for "./" */
-		outdir_offset = 2;
-		return "./";
-	}
-
-	outdir_offset = strlen(prefix);
-	if (!output_directory)
-		return prefix;
-
-	return xstrdup(prefix_filename(prefix, outdir_offset,
-				       output_directory));
-}
-
-static const char * const builtin_format_patch_usage[] = {
-	"git format-patch [options] [<since> | <revision range>]",
-	NULL
-};
-
-static int keep_subject = 0;
-
-static int keep_callback(const struct option *opt, const char *arg, int unset)
-{
-	((struct rev_info *)opt->value)->total = -1;
-	keep_subject = 1;
-	return 0;
-}
-
-static int subject_prefix = 0;
-
-static int subject_prefix_callback(const struct option *opt, const char *arg,
-			    int unset)
-{
-	subject_prefix = 1;
-	((struct rev_info *)opt->value)->subject_prefix = arg;
-	return 0;
-}
-
-static int numbered_cmdline_opt = 0;
-
-static int numbered_callback(const struct option *opt, const char *arg,
-			     int unset)
-{
-	*(int *)opt->value = numbered_cmdline_opt = unset ? 0 : 1;
-	if (unset)
-		auto_number =  0;
-	return 0;
-}
-
-static int no_numbered_callback(const struct option *opt, const char *arg,
-				int unset)
-{
-	return numbered_callback(opt, arg, 1);
-}
-
-static int output_directory_callback(const struct option *opt, const char *arg,
-			      int unset)
-{
-	const char **dir = (const char **)opt->value;
-	if (*dir)
-		die("Two output directories?");
-	*dir = arg;
-	return 0;
-}
-
-static int thread_callback(const struct option *opt, const char *arg, int unset)
-{
-	int *thread = (int *)opt->value;
-	if (unset)
-		*thread = 0;
-	else if (!arg || !strcmp(arg, "shallow"))
-		*thread = THREAD_SHALLOW;
-	else if (!strcmp(arg, "deep"))
-		*thread = THREAD_DEEP;
-	else
-		return 1;
-	return 0;
-}
-
-static int attach_callback(const struct option *opt, const char *arg, int unset)
-{
-	struct rev_info *rev = (struct rev_info *)opt->value;
-	if (unset)
-		rev->mime_boundary = NULL;
-	else if (arg)
-		rev->mime_boundary = arg;
-	else
-		rev->mime_boundary = git_version_string;
-	rev->no_inline = unset ? 0 : 1;
-	return 0;
-}
-
-static int inline_callback(const struct option *opt, const char *arg, int unset)
-{
-	struct rev_info *rev = (struct rev_info *)opt->value;
-	if (unset)
-		rev->mime_boundary = NULL;
-	else if (arg)
-		rev->mime_boundary = arg;
-	else
-		rev->mime_boundary = git_version_string;
-	rev->no_inline = 0;
-	return 0;
-}
-
-static int header_callback(const struct option *opt, const char *arg, int unset)
-{
-	add_header(arg);
-	return 0;
-}
-
-static int cc_callback(const struct option *opt, const char *arg, int unset)
-{
-	ALLOC_GROW(extra_cc, extra_cc_nr + 1, extra_cc_alloc);
-	extra_cc[extra_cc_nr++] = xstrdup(arg);
-	return 0;
-}
-
-int cmd_format_patch(int argc, const char **argv, const char *prefix)
-{
-	struct commit *commit;
-	struct commit **list = NULL;
-	struct rev_info rev;
-	int nr = 0, total, i;
-	int use_stdout = 0;
-	int start_number = -1;
-	int numbered_files = 0;		/* _just_ numbers */
-	int ignore_if_in_upstream = 0;
-	int cover_letter = 0;
-	int boundary_count = 0;
-	int no_binary_diff = 0;
-	struct commit *origin = NULL, *head = NULL;
-	const char *in_reply_to = NULL;
-	struct patch_ids ids;
-	char *add_signoff = NULL;
-	struct strbuf buf = STRBUF_INIT;
-	int use_patch_format = 0;
-	const struct option builtin_format_patch_options[] = {
-		{ OPTION_CALLBACK, 'n', "numbered", &numbered, NULL,
-			    "use [PATCH n/m] even with a single patch",
-			    PARSE_OPT_NOARG, numbered_callback },
-		{ OPTION_CALLBACK, 'N', "no-numbered", &numbered, NULL,
-			    "use [PATCH] even with multiple patches",
-			    PARSE_OPT_NOARG, no_numbered_callback },
-		OPT_BOOLEAN('s', "signoff", &do_signoff, "add Signed-off-by:"),
-		OPT_BOOLEAN(0, "stdout", &use_stdout,
-			    "print patches to standard out"),
-		OPT_BOOLEAN(0, "cover-letter", &cover_letter,
-			    "generate a cover letter"),
-		OPT_BOOLEAN(0, "numbered-files", &numbered_files,
-			    "use simple number sequence for output file names"),
-		OPT_STRING(0, "suffix", &fmt_patch_suffix, "sfx",
-			    "use <sfx> instead of '.patch'"),
-		OPT_INTEGER(0, "start-number", &start_number,
-			    "start numbering patches at <n> instead of 1"),
-		{ OPTION_CALLBACK, 0, "subject-prefix", &rev, "prefix",
-			    "Use [<prefix>] instead of [PATCH]",
-			    PARSE_OPT_NONEG, subject_prefix_callback },
-		{ OPTION_CALLBACK, 'o', "output-directory", &output_directory,
-			    "dir", "store resulting files in <dir>",
-			    PARSE_OPT_NONEG, output_directory_callback },
-		{ OPTION_CALLBACK, 'k', "keep-subject", &rev, NULL,
-			    "don't strip/add [PATCH]",
-			    PARSE_OPT_NOARG | PARSE_OPT_NONEG, keep_callback },
-		OPT_BOOLEAN(0, "no-binary", &no_binary_diff,
-			    "don't output binary diffs"),
-		OPT_BOOLEAN(0, "ignore-if-in-upstream", &ignore_if_in_upstream,
-			    "don't include a patch matching a commit upstream"),
-		{ OPTION_BOOLEAN, 'p', "no-stat", &use_patch_format, NULL,
-		  "show patch format instead of default (patch + stat)",
-		  PARSE_OPT_NONEG | PARSE_OPT_NOARG },
-		OPT_GROUP("Messaging"),
-		{ OPTION_CALLBACK, 0, "add-header", NULL, "header",
-			    "add email header", PARSE_OPT_NONEG,
-			    header_callback },
-		{ OPTION_CALLBACK, 0, "cc", NULL, "email", "add Cc: header",
-			    PARSE_OPT_NONEG, cc_callback },
-		OPT_STRING(0, "in-reply-to", &in_reply_to, "message-id",
-			    "make first mail a reply to <message-id>"),
-		{ OPTION_CALLBACK, 0, "attach", &rev, "boundary",
-			    "attach the patch", PARSE_OPT_OPTARG,
-			    attach_callback },
-		{ OPTION_CALLBACK, 0, "inline", &rev, "boundary",
-			    "inline the patch",
-			    PARSE_OPT_OPTARG | PARSE_OPT_NONEG,
-			    inline_callback },
-		{ OPTION_CALLBACK, 0, "thread", &thread, "style",
-			    "enable message threading, styles: shallow, deep",
-			    PARSE_OPT_OPTARG, thread_callback },
-		OPT_END()
-	};
-
-	git_config(git_format_config, NULL);
-	init_revisions(&rev, prefix);
-	rev.commit_format = CMIT_FMT_EMAIL;
-	rev.verbose_header = 1;
-	rev.diff = 1;
-	rev.combine_merges = 0;
-	rev.ignore_merges = 1;
-	DIFF_OPT_SET(&rev.diffopt, RECURSIVE);
-
-	rev.subject_prefix = fmt_patch_subject_prefix;
-
-	if (default_attach) {
-		rev.mime_boundary = default_attach;
-		rev.no_inline = 1;
-	}
-
-	/*
-	 * Parse the arguments before setup_revisions(), or something
-	 * like "git format-patch -o a123 HEAD^.." may fail; a123 is
-	 * possibly a valid SHA1.
-	 */
-	argc = parse_options(argc, argv, prefix, builtin_format_patch_options,
-			     builtin_format_patch_usage,
-			     PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN |
-			     PARSE_OPT_KEEP_DASHDASH);
-
-	if (do_signoff) {
-		const char *committer;
-		const char *endpos;
-		committer = git_committer_info(IDENT_ERROR_ON_NO_NAME);
-		endpos = strchr(committer, '>');
-		if (!endpos)
-			die("bogus committer info %s", committer);
-		add_signoff = xmemdupz(committer, endpos - committer + 1);
-	}
-
-	for (i = 0; i < extra_hdr_nr; i++) {
-		strbuf_addstr(&buf, extra_hdr[i]);
-		strbuf_addch(&buf, '\n');
-	}
-
-	if (extra_to_nr)
-		strbuf_addstr(&buf, "To: ");
-	for (i = 0; i < extra_to_nr; i++) {
-		if (i)
-			strbuf_addstr(&buf, "    ");
-		strbuf_addstr(&buf, extra_to[i]);
-		if (i + 1 < extra_to_nr)
-			strbuf_addch(&buf, ',');
-		strbuf_addch(&buf, '\n');
-	}
-
-	if (extra_cc_nr)
-		strbuf_addstr(&buf, "Cc: ");
-	for (i = 0; i < extra_cc_nr; i++) {
-		if (i)
-			strbuf_addstr(&buf, "    ");
-		strbuf_addstr(&buf, extra_cc[i]);
-		if (i + 1 < extra_cc_nr)
-			strbuf_addch(&buf, ',');
-		strbuf_addch(&buf, '\n');
-	}
-
-	rev.extra_headers = strbuf_detach(&buf, NULL);
-
-	if (start_number < 0)
-		start_number = 1;
-
-	/*
-	 * If numbered is set solely due to format.numbered in config,
-	 * and it would conflict with --keep-subject (-k) from the
-	 * command line, reset "numbered".
-	 */
-	if (numbered && keep_subject && !numbered_cmdline_opt)
-		numbered = 0;
-
-	if (numbered && keep_subject)
-		die ("-n and -k are mutually exclusive.");
-	if (keep_subject && subject_prefix)
-		die ("--subject-prefix and -k are mutually exclusive.");
-
-	argc = setup_revisions(argc, argv, &rev, "HEAD");
-	if (argc > 1)
-		die ("unrecognized argument: %s", argv[1]);
-
-	if (rev.diffopt.output_format & DIFF_FORMAT_NAME)
-		die("--name-only does not make sense");
-	if (rev.diffopt.output_format & DIFF_FORMAT_NAME_STATUS)
-		die("--name-status does not make sense");
-	if (rev.diffopt.output_format & DIFF_FORMAT_CHECKDIFF)
-		die("--check does not make sense");
-
-	if (!use_patch_format &&
-		(!rev.diffopt.output_format ||
-		 rev.diffopt.output_format == DIFF_FORMAT_PATCH))
-		rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_SUMMARY;
-
-	/* Always generate a patch */
-	rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
-
-	if (!DIFF_OPT_TST(&rev.diffopt, TEXT) && !no_binary_diff)
-		DIFF_OPT_SET(&rev.diffopt, BINARY);
-
-	if (!use_stdout)
-		output_directory = set_outdir(prefix, output_directory);
-
-	if (output_directory) {
-		if (use_stdout)
-			die("standard output, or directory, which one?");
-		if (mkdir(output_directory, 0777) < 0 && errno != EEXIST)
-			die_errno("Could not create directory '%s'",
-				  output_directory);
-	}
-
-	if (rev.pending.nr == 1) {
-		if (rev.max_count < 0 && !rev.show_root_diff) {
-			/*
-			 * This is traditional behaviour of "git format-patch
-			 * origin" that prepares what the origin side still
-			 * does not have.
-			 */
-			rev.pending.objects[0].item->flags |= UNINTERESTING;
-			add_head_to_pending(&rev);
-		}
-		/*
-		 * Otherwise, it is "format-patch -22 HEAD", and/or
-		 * "format-patch --root HEAD".  The user wants
-		 * get_revision() to do the usual traversal.
-		 */
-	}
-
-	/*
-	 * We cannot move this anywhere earlier because we do want to
-	 * know if --root was given explicitly from the command line.
-	 */
-	rev.show_root_diff = 1;
-
-	if (cover_letter) {
-		/* remember the range */
-		int i;
-		for (i = 0; i < rev.pending.nr; i++) {
-			struct object *o = rev.pending.objects[i].item;
-			if (!(o->flags & UNINTERESTING))
-				head = (struct commit *)o;
-		}
-		/* We can't generate a cover letter without any patches */
-		if (!head)
-			return 0;
-	}
-
-	if (ignore_if_in_upstream)
-		get_patch_ids(&rev, &ids, prefix);
-
-	if (!use_stdout)
-		realstdout = xfdopen(xdup(1), "w");
-
-	if (prepare_revision_walk(&rev))
-		die("revision walk setup failed");
-	rev.boundary = 1;
-	while ((commit = get_revision(&rev)) != NULL) {
-		if (commit->object.flags & BOUNDARY) {
-			boundary_count++;
-			origin = (boundary_count == 1) ? commit : NULL;
-			continue;
-		}
-
-		/* ignore merges */
-		if (commit->parents && commit->parents->next)
-			continue;
-
-		if (ignore_if_in_upstream &&
-				has_commit_patch_id(commit, &ids))
-			continue;
-
-		nr++;
-		list = xrealloc(list, nr * sizeof(list[0]));
-		list[nr - 1] = commit;
-	}
-	total = nr;
-	if (!keep_subject && auto_number && total > 1)
-		numbered = 1;
-	if (numbered)
-		rev.total = total + start_number - 1;
-	if (in_reply_to || thread || cover_letter)
-		rev.ref_message_ids = xcalloc(1, sizeof(struct string_list));
-	if (in_reply_to) {
-		const char *msgid = clean_message_id(in_reply_to);
-		string_list_append(msgid, rev.ref_message_ids);
-	}
-	rev.numbered_files = numbered_files;
-	rev.patch_suffix = fmt_patch_suffix;
-	if (cover_letter) {
-		if (thread)
-			gen_message_id(&rev, "cover");
-		make_cover_letter(&rev, use_stdout, numbered, numbered_files,
-				  origin, nr, list, head);
-		total++;
-		start_number--;
-	}
-	rev.add_signoff = add_signoff;
-	while (0 <= --nr) {
-		int shown;
-		commit = list[nr];
-		rev.nr = total - nr + (start_number - 1);
-		/* Make the second and subsequent mails replies to the first */
-		if (thread) {
-			/* Have we already had a message ID? */
-			if (rev.message_id) {
-				/*
-				 * For deep threading: make every mail
-				 * a reply to the previous one, no
-				 * matter what other options are set.
-				 *
-				 * For shallow threading:
-				 *
-				 * Without --cover-letter and
-				 * --in-reply-to, make every mail a
-				 * reply to the one before.
-				 *
-				 * With --in-reply-to but no
-				 * --cover-letter, make every mail a
-				 * reply to the <reply-to>.
-				 *
-				 * With --cover-letter, make every
-				 * mail but the cover letter a reply
-				 * to the cover letter.  The cover
-				 * letter is a reply to the
-				 * --in-reply-to, if specified.
-				 */
-				if (thread == THREAD_SHALLOW
-				    && rev.ref_message_ids->nr > 0
-				    && (!cover_letter || rev.nr > 1))
-					free(rev.message_id);
-				else
-					string_list_append(rev.message_id,
-							   rev.ref_message_ids);
-			}
-			gen_message_id(&rev, sha1_to_hex(commit->object.sha1));
-		}
-
-		if (!use_stdout && reopen_stdout(numbered_files ? NULL : commit,
-						 &rev))
-			die("Failed to create output files");
-		shown = log_tree_commit(&rev, commit);
-		free(commit->buffer);
-		commit->buffer = NULL;
-
-		/* We put one extra blank line between formatted
-		 * patches and this flag is used by log-tree code
-		 * to see if it needs to emit a LF before showing
-		 * the log; when using one file per patch, we do
-		 * not want the extra blank line.
-		 */
-		if (!use_stdout)
-			rev.shown_one = 0;
-		if (shown) {
-			if (rev.mime_boundary)
-				printf("\n--%s%s--\n\n\n",
-				       mime_boundary_leader,
-				       rev.mime_boundary);
-			else
-				printf("-- \n%s\n\n", git_version_string);
-		}
-		if (!use_stdout)
-			fclose(stdout);
-	}
-	free(list);
-	if (ignore_if_in_upstream)
-		free_patch_ids(&ids);
-	return 0;
-}
-
-static int add_pending_commit(const char *arg, struct rev_info *revs, int flags)
-{
-	unsigned char sha1[20];
-	if (get_sha1(arg, sha1) == 0) {
-		struct commit *commit = lookup_commit_reference(sha1);
-		if (commit) {
-			commit->object.flags |= flags;
-			add_pending_object(revs, &commit->object, arg);
-			return 0;
-		}
-	}
-	return -1;
-}
-
-static const char cherry_usage[] =
-"git cherry [-v] [<upstream> [<head> [<limit>]]]";
-int cmd_cherry(int argc, const char **argv, const char *prefix)
-{
-	struct rev_info revs;
-	struct patch_ids ids;
-	struct commit *commit;
-	struct commit_list *list = NULL;
-	struct branch *current_branch;
-	const char *upstream;
-	const char *head = "HEAD";
-	const char *limit = NULL;
-	int verbose = 0;
-
-	if (argc > 1 && !strcmp(argv[1], "-v")) {
-		verbose = 1;
-		argc--;
-		argv++;
-	}
-
-	if (argc > 1 && !strcmp(argv[1], "-h"))
-		usage(cherry_usage);
-
-	switch (argc) {
-	case 4:
-		limit = argv[3];
-		/* FALLTHROUGH */
-	case 3:
-		head = argv[2];
-		/* FALLTHROUGH */
-	case 2:
-		upstream = argv[1];
-		break;
-	default:
-		current_branch = branch_get(NULL);
-		if (!current_branch || !current_branch->merge
-					|| !current_branch->merge[0]
-					|| !current_branch->merge[0]->dst) {
-			fprintf(stderr, "Could not find a tracked"
-					" remote branch, please"
-					" specify <upstream> manually.\n");
-			usage(cherry_usage);
-		}
-
-		upstream = current_branch->merge[0]->dst;
-	}
-
-	init_revisions(&revs, prefix);
-	revs.diff = 1;
-	revs.combine_merges = 0;
-	revs.ignore_merges = 1;
-	DIFF_OPT_SET(&revs.diffopt, RECURSIVE);
-
-	if (add_pending_commit(head, &revs, 0))
-		die("Unknown commit %s", head);
-	if (add_pending_commit(upstream, &revs, UNINTERESTING))
-		die("Unknown commit %s", upstream);
-
-	/* Don't say anything if head and upstream are the same. */
-	if (revs.pending.nr == 2) {
-		struct object_array_entry *o = revs.pending.objects;
-		if (hashcmp(o[0].item->sha1, o[1].item->sha1) == 0)
-			return 0;
-	}
-
-	get_patch_ids(&revs, &ids, prefix);
-
-	if (limit && add_pending_commit(limit, &revs, UNINTERESTING))
-		die("Unknown commit %s", limit);
-
-	/* reverse the list of commits */
-	if (prepare_revision_walk(&revs))
-		die("revision walk setup failed");
-	while ((commit = get_revision(&revs)) != NULL) {
-		/* ignore merges */
-		if (commit->parents && commit->parents->next)
-			continue;
-
-		commit_list_insert(commit, &list);
-	}
-
-	while (list) {
-		char sign = '+';
-
-		commit = list->item;
-		if (has_commit_patch_id(commit, &ids))
-			sign = '-';
-
-		if (verbose) {
-			struct strbuf buf = STRBUF_INIT;
-			struct pretty_print_context ctx = {0};
-			pretty_print_commit(CMIT_FMT_ONELINE, commit,
-					    &buf, &ctx);
-			printf("%c %s %s\n", sign,
-			       sha1_to_hex(commit->object.sha1), buf.buf);
-			strbuf_release(&buf);
-		}
-		else {
-			printf("%c %s\n", sign,
-			       sha1_to_hex(commit->object.sha1));
-		}
-
-		list = list->next;
-	}
-
-	free_patch_ids(&ids);
-	return 0;
-}