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, 1310 deletions

diff --git a/builtin-commit.c b/builtin-commit.c
deleted file mode 100644
index 55676fd874..0000000000
--- a/builtin-commit.c
+++ /dev/null
@@ -1,1310 +0,0 @@
-/*
- * Builtin "git commit"
- *
- * Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>
- * Based on git-commit.sh by Junio C Hamano and Linus Torvalds
- */
-
-#include "cache.h"
-#include "cache-tree.h"
-#include "color.h"
-#include "dir.h"
-#include "builtin.h"
-#include "diff.h"
-#include "diffcore.h"
-#include "commit.h"
-#include "revision.h"
-#include "wt-status.h"
-#include "run-command.h"
-#include "refs.h"
-#include "log-tree.h"
-#include "strbuf.h"
-#include "utf8.h"
-#include "parse-options.h"
-#include "string-list.h"
-#include "rerere.h"
-#include "unpack-trees.h"
-#include "quote.h"
-
-static const char * const builtin_commit_usage[] = {
-	"git commit [options] [--] <filepattern>...",
-	NULL
-};
-
-static const char * const builtin_status_usage[] = {
-	"git status [options] [--] <filepattern>...",
-	NULL
-};
-
-static const char implicit_ident_advice[] =
-"Your name and email address were configured automatically based\n"
-"on your username and hostname. Please check that they are accurate.\n"
-"You can suppress this message by setting them explicitly:\n"
-"\n"
-"    git config --global user.name Your Name\n"
-"    git config --global user.email you@example.com\n"
-"\n"
-"If the identity used for this commit is wrong, you can fix it with:\n"
-"\n"
-"    git commit --amend --author='Your Name <you@example.com>'\n";
-
-static unsigned char head_sha1[20];
-
-static char *use_message_buffer;
-static const char commit_editmsg[] = "COMMIT_EDITMSG";
-static struct lock_file index_lock; /* real index */
-static struct lock_file false_lock; /* used only for partial commits */
-static enum {
-	COMMIT_AS_IS = 1,
-	COMMIT_NORMAL,
-	COMMIT_PARTIAL,
-} commit_style;
-
-static const char *logfile, *force_author;
-static const char *template_file;
-static char *edit_message, *use_message;
-static char *author_name, *author_email, *author_date;
-static int all, edit_flag, also, interactive, only, amend, signoff;
-static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship;
-static char *untracked_files_arg, *force_date;
-/*
- * The default commit message cleanup mode will remove the lines
- * beginning with # (shell comments) and leading and trailing
- * whitespaces (empty lines or containing only whitespaces)
- * if editor is used, and only the whitespaces if the message
- * is specified explicitly.
- */
-static enum {
-	CLEANUP_SPACE,
-	CLEANUP_NONE,
-	CLEANUP_ALL,
-} cleanup_mode;
-static char *cleanup_arg;
-
-static int use_editor = 1, initial_commit, in_merge, include_status = 1;
-static const char *only_include_assumed;
-static struct strbuf message;
-
-static int null_termination;
-static enum {
-	STATUS_FORMAT_LONG,
-	STATUS_FORMAT_SHORT,
-	STATUS_FORMAT_PORCELAIN,
-} status_format = STATUS_FORMAT_LONG;
-
-static int opt_parse_m(const struct option *opt, const char *arg, int unset)
-{
-	struct strbuf *buf = opt->value;
-	if (unset)
-		strbuf_setlen(buf, 0);
-	else {
-		strbuf_addstr(buf, arg);
-		strbuf_addstr(buf, "\n\n");
-	}
-	return 0;
-}
-
-static struct option builtin_commit_options[] = {
-	OPT__QUIET(&quiet),
-	OPT__VERBOSE(&verbose),
-
-	OPT_GROUP("Commit message options"),
-	OPT_FILENAME('F', "file", &logfile, "read log from file"),
-	OPT_STRING(0, "author", &force_author, "AUTHOR", "override author for commit"),
-	OPT_STRING(0, "date", &force_date, "DATE", "override date for commit"),
-	OPT_CALLBACK('m', "message", &message, "MESSAGE", "specify commit message", opt_parse_m),
-	OPT_STRING('c', "reedit-message", &edit_message, "COMMIT", "reuse and edit message from specified commit"),
-	OPT_STRING('C', "reuse-message", &use_message, "COMMIT", "reuse message from specified commit"),
-	OPT_BOOLEAN(0, "reset-author", &renew_authorship, "the commit is authored by me now (used with -C-c/--amend)"),
-	OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
-	OPT_FILENAME('t', "template", &template_file, "use specified template file"),
-	OPT_BOOLEAN('e', "edit", &edit_flag, "force edit of commit"),
-	OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
-	OPT_BOOLEAN(0, "status", &include_status, "include status in commit message template"),
-	/* end commit message options */
-
-	OPT_GROUP("Commit contents options"),
-	OPT_BOOLEAN('a', "all", &all, "commit all changed files"),
-	OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"),
-	OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
-	OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
-	OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
-	OPT_BOOLEAN(0, "dry-run", &dry_run, "show what would be committed"),
-	OPT_SET_INT(0, "short", &status_format, "show status concisely",
-		    STATUS_FORMAT_SHORT),
-	OPT_SET_INT(0, "porcelain", &status_format,
-		    "show porcelain output format", STATUS_FORMAT_PORCELAIN),
-	OPT_BOOLEAN('z', "null", &null_termination,
-		    "terminate entries with NUL"),
-	OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
-	{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
-	OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
-	/* end commit contents options */
-
-	OPT_END()
-};
-
-static void rollback_index_files(void)
-{
-	switch (commit_style) {
-	case COMMIT_AS_IS:
-		break; /* nothing to do */
-	case COMMIT_NORMAL:
-		rollback_lock_file(&index_lock);
-		break;
-	case COMMIT_PARTIAL:
-		rollback_lock_file(&index_lock);
-		rollback_lock_file(&false_lock);
-		break;
-	}
-}
-
-static int commit_index_files(void)
-{
-	int err = 0;
-
-	switch (commit_style) {
-	case COMMIT_AS_IS:
-		break; /* nothing to do */
-	case COMMIT_NORMAL:
-		err = commit_lock_file(&index_lock);
-		break;
-	case COMMIT_PARTIAL:
-		err = commit_lock_file(&index_lock);
-		rollback_lock_file(&false_lock);
-		break;
-	}
-
-	return err;
-}
-
-/*
- * Take a union of paths in the index and the named tree (typically, "HEAD"),
- * and return the paths that match the given pattern in list.
- */
-static int list_paths(struct string_list *list, const char *with_tree,
-		      const char *prefix, const char **pattern)
-{
-	int i;
-	char *m;
-
-	for (i = 0; pattern[i]; i++)
-		;
-	m = xcalloc(1, i);
-
-	if (with_tree)
-		overlay_tree_on_cache(with_tree, prefix);
-
-	for (i = 0; i < active_nr; i++) {
-		struct cache_entry *ce = active_cache[i];
-		struct string_list_item *item;
-
-		if (ce->ce_flags & CE_UPDATE)
-			continue;
-		if (!match_pathspec(pattern, ce->name, ce_namelen(ce), 0, m))
-			continue;
-		item = string_list_insert(ce->name, list);
-		if (ce_skip_worktree(ce))
-			item->util = item; /* better a valid pointer than a fake one */
-	}
-
-	return report_path_error(m, pattern, prefix ? strlen(prefix) : 0);
-}
-
-static void add_remove_files(struct string_list *list)
-{
-	int i;
-	for (i = 0; i < list->nr; i++) {
-		struct stat st;
-		struct string_list_item *p = &(list->items[i]);
-
-		/* p->util is skip-worktree */
-		if (p->util)
-			continue;
-
-		if (!lstat(p->string, &st)) {
-			if (add_to_cache(p->string, &st, 0))
-				die("updating files failed");
-		} else
-			remove_file_from_cache(p->string);
-	}
-}
-
-static void create_base_index(void)
-{
-	struct tree *tree;
-	struct unpack_trees_options opts;
-	struct tree_desc t;
-
-	if (initial_commit) {
-		discard_cache();
-		return;
-	}
-
-	memset(&opts, 0, sizeof(opts));
-	opts.head_idx = 1;
-	opts.index_only = 1;
-	opts.merge = 1;
-	opts.src_index = &the_index;
-	opts.dst_index = &the_index;
-
-	opts.fn = oneway_merge;
-	tree = parse_tree_indirect(head_sha1);
-	if (!tree)
-		die("failed to unpack HEAD tree object");
-	parse_tree(tree);
-	init_tree_desc(&t, tree->buffer, tree->size);
-	if (unpack_trees(1, &t, &opts))
-		exit(128); /* We've already reported the error, finish dying */
-}
-
-static void refresh_cache_or_die(int refresh_flags)
-{
-	/*
-	 * refresh_flags contains REFRESH_QUIET, so the only errors
-	 * are for unmerged entries.
-	 */
-	if (refresh_cache(refresh_flags | REFRESH_IN_PORCELAIN))
-		die_resolve_conflict("commit");
-}
-
-static char *prepare_index(int argc, const char **argv, const char *prefix, int is_status)
-{
-	int fd;
-	struct string_list partial;
-	const char **pathspec = NULL;
-	int refresh_flags = REFRESH_QUIET;
-
-	if (is_status)
-		refresh_flags |= REFRESH_UNMERGED;
-	if (interactive) {
-		if (interactive_add(argc, argv, prefix) != 0)
-			die("interactive add failed");
-		if (read_cache_preload(NULL) < 0)
-			die("index file corrupt");
-		commit_style = COMMIT_AS_IS;
-		return get_index_file();
-	}
-
-	if (*argv)
-		pathspec = get_pathspec(prefix, argv);
-
-	if (read_cache_preload(pathspec) < 0)
-		die("index file corrupt");
-
-	/*
-	 * Non partial, non as-is commit.
-	 *
-	 * (1) get the real index;
-	 * (2) update the_index as necessary;
-	 * (3) write the_index out to the real index (still locked);
-	 * (4) return the name of the locked index file.
-	 *
-	 * The caller should run hooks on the locked real index, and
-	 * (A) if all goes well, commit the real index;
-	 * (B) on failure, rollback the real index.
-	 */
-	if (all || (also && pathspec && *pathspec)) {
-		int fd = hold_locked_index(&index_lock, 1);
-		add_files_to_cache(also ? prefix : NULL, pathspec, 0);
-		refresh_cache_or_die(refresh_flags);
-		if (write_cache(fd, active_cache, active_nr) ||
-		    close_lock_file(&index_lock))
-			die("unable to write new_index file");
-		commit_style = COMMIT_NORMAL;
-		return index_lock.filename;
-	}
-
-	/*
-	 * As-is commit.
-	 *
-	 * (1) return the name of the real index file.
-	 *
-	 * The caller should run hooks on the real index, and run
-	 * hooks on the real index, and create commit from the_index.
-	 * We still need to refresh the index here.
-	 */
-	if (!pathspec || !*pathspec) {
-		fd = hold_locked_index(&index_lock, 1);
-		refresh_cache_or_die(refresh_flags);
-		if (write_cache(fd, active_cache, active_nr) ||
-		    commit_locked_index(&index_lock))
-			die("unable to write new_index file");
-		commit_style = COMMIT_AS_IS;
-		return get_index_file();
-	}
-
-	/*
-	 * A partial commit.
-	 *
-	 * (0) find the set of affected paths;
-	 * (1) get lock on the real index file;
-	 * (2) update the_index with the given paths;
-	 * (3) write the_index out to the real index (still locked);
-	 * (4) get lock on the false index file;
-	 * (5) reset the_index from HEAD;
-	 * (6) update the_index the same way as (2);
-	 * (7) write the_index out to the false index file;
-	 * (8) return the name of the false index file (still locked);
-	 *
-	 * The caller should run hooks on the locked false index, and
-	 * create commit from it.  Then
-	 * (A) if all goes well, commit the real index;
-	 * (B) on failure, rollback the real index;
-	 * In either case, rollback the false index.
-	 */
-	commit_style = COMMIT_PARTIAL;
-
-	if (in_merge)
-		die("cannot do a partial commit during a merge.");
-
-	memset(&partial, 0, sizeof(partial));
-	partial.strdup_strings = 1;
-	if (list_paths(&partial, initial_commit ? NULL : "HEAD", prefix, pathspec))
-		exit(1);
-
-	discard_cache();
-	if (read_cache() < 0)
-		die("cannot read the index");
-
-	fd = hold_locked_index(&index_lock, 1);
-	add_remove_files(&partial);
-	refresh_cache(REFRESH_QUIET);
-	if (write_cache(fd, active_cache, active_nr) ||
-	    close_lock_file(&index_lock))
-		die("unable to write new_index file");
-
-	fd = hold_lock_file_for_update(&false_lock,
-				       git_path("next-index-%"PRIuMAX,
-						(uintmax_t) getpid()),
-				       LOCK_DIE_ON_ERROR);
-
-	create_base_index();
-	add_remove_files(&partial);
-	refresh_cache(REFRESH_QUIET);
-
-	if (write_cache(fd, active_cache, active_nr) ||
-	    close_lock_file(&false_lock))
-		die("unable to write temporary index file");
-
-	discard_cache();
-	read_cache_from(false_lock.filename);
-
-	return false_lock.filename;
-}
-
-static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn,
-		      struct wt_status *s)
-{
-	unsigned char sha1[20];
-
-	if (s->relative_paths)
-		s->prefix = prefix;
-
-	if (amend) {
-		s->amend = 1;
-		s->reference = "HEAD^1";
-	}
-	s->verbose = verbose;
-	s->index_file = index_file;
-	s->fp = fp;
-	s->nowarn = nowarn;
-	s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
-
-	wt_status_collect(s);
-
-	switch (status_format) {
-	case STATUS_FORMAT_SHORT:
-		wt_shortstatus_print(s, null_termination);
-		break;
-	case STATUS_FORMAT_PORCELAIN:
-		wt_porcelain_print(s, null_termination);
-		break;
-	case STATUS_FORMAT_LONG:
-		wt_status_print(s);
-		break;
-	}
-
-	return s->commitable;
-}
-
-static int is_a_merge(const unsigned char *sha1)
-{
-	struct commit *commit = lookup_commit(sha1);
-	if (!commit || parse_commit(commit))
-		die("could not parse HEAD commit");
-	return !!(commit->parents && commit->parents->next);
-}
-
-static const char sign_off_header[] = "Signed-off-by: ";
-
-static void determine_author_info(void)
-{
-	char *name, *email, *date;
-
-	name = getenv("GIT_AUTHOR_NAME");
-	email = getenv("GIT_AUTHOR_EMAIL");
-	date = getenv("GIT_AUTHOR_DATE");
-
-	if (use_message && !renew_authorship) {
-		const char *a, *lb, *rb, *eol;
-
-		a = strstr(use_message_buffer, "\nauthor ");
-		if (!a)
-			die("invalid commit: %s", use_message);
-
-		lb = strstr(a + 8, " <");
-		rb = strstr(a + 8, "> ");
-		eol = strchr(a + 8, '\n');
-		if (!lb || !rb || !eol)
-			die("invalid commit: %s", use_message);
-
-		name = xstrndup(a + 8, lb - (a + 8));
-		email = xstrndup(lb + 2, rb - (lb + 2));
-		date = xstrndup(rb + 2, eol - (rb + 2));
-	}
-
-	if (force_author) {
-		const char *lb = strstr(force_author, " <");
-		const char *rb = strchr(force_author, '>');
-
-		if (!lb || !rb)
-			die("malformed --author parameter");
-		name = xstrndup(force_author, lb - force_author);
-		email = xstrndup(lb + 2, rb - (lb + 2));
-	}
-
-	if (force_date)
-		date = force_date;
-
-	author_name = name;
-	author_email = email;
-	author_date = date;
-}
-
-static int ends_rfc2822_footer(struct strbuf *sb)
-{
-	int ch;
-	int hit = 0;
-	int i, j, k;
-	int len = sb->len;
-	int first = 1;
-	const char *buf = sb->buf;
-
-	for (i = len - 1; i > 0; i--) {
-		if (hit && buf[i] == '\n')
-			break;
-		hit = (buf[i] == '\n');
-	}
-
-	while (i < len - 1 && buf[i] == '\n')
-		i++;
-
-	for (; i < len; i = k) {
-		for (k = i; k < len && buf[k] != '\n'; k++)
-			; /* do nothing */
-		k++;
-
-		if ((buf[k] == ' ' || buf[k] == '\t') && !first)
-			continue;
-
-		first = 0;
-
-		for (j = 0; i + j < len; j++) {
-			ch = buf[i + j];
-			if (ch == ':')
-				break;
-			if (isalnum(ch) ||
-			    (ch == '-'))
-				continue;
-			return 0;
-		}
-	}
-	return 1;
-}
-
-static int prepare_to_commit(const char *index_file, const char *prefix,
-			     struct wt_status *s)
-{
-	struct stat statbuf;
-	int commitable, saved_color_setting;
-	struct strbuf sb = STRBUF_INIT;
-	char *buffer;
-	FILE *fp;
-	const char *hook_arg1 = NULL;
-	const char *hook_arg2 = NULL;
-	int ident_shown = 0;
-
-	if (!no_verify && run_hook(index_file, "pre-commit", NULL))
-		return 0;
-
-	if (message.len) {
-		strbuf_addbuf(&sb, &message);
-		hook_arg1 = "message";
-	} else if (logfile && !strcmp(logfile, "-")) {
-		if (isatty(0))
-			fprintf(stderr, "(reading log message from standard input)\n");
-		if (strbuf_read(&sb, 0, 0) < 0)
-			die_errno("could not read log from standard input");
-		hook_arg1 = "message";
-	} else if (logfile) {
-		if (strbuf_read_file(&sb, logfile, 0) < 0)
-			die_errno("could not read log file '%s'",
-				  logfile);
-		hook_arg1 = "message";
-	} else if (use_message) {
-		buffer = strstr(use_message_buffer, "\n\n");
-		if (!buffer || buffer[2] == '\0')
-			die("commit has empty message");
-		strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
-		hook_arg1 = "commit";
-		hook_arg2 = use_message;
-	} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
-		if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
-			die_errno("could not read MERGE_MSG");
-		hook_arg1 = "merge";
-	} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
-		if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
-			die_errno("could not read SQUASH_MSG");
-		hook_arg1 = "squash";
-	} else if (template_file && !stat(template_file, &statbuf)) {
-		if (strbuf_read_file(&sb, template_file, 0) < 0)
-			die_errno("could not read '%s'", template_file);
-		hook_arg1 = "template";
-	}
-
-	/*
-	 * This final case does not modify the template message,
-	 * it just sets the argument to the prepare-commit-msg hook.
-	 */
-	else if (in_merge)
-		hook_arg1 = "merge";
-
-	fp = fopen(git_path(commit_editmsg), "w");
-	if (fp == NULL)
-		die_errno("could not open '%s'", git_path(commit_editmsg));
-
-	if (cleanup_mode != CLEANUP_NONE)
-		stripspace(&sb, 0);
-
-	if (signoff) {
-		struct strbuf sob = STRBUF_INIT;
-		int i;
-
-		strbuf_addstr(&sob, sign_off_header);
-		strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
-					     getenv("GIT_COMMITTER_EMAIL")));
-		strbuf_addch(&sob, '\n');
-		for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
-			; /* do nothing */
-		if (prefixcmp(sb.buf + i, sob.buf)) {
-			if (!i || !ends_rfc2822_footer(&sb))
-				strbuf_addch(&sb, '\n');
-			strbuf_addbuf(&sb, &sob);
-		}
-		strbuf_release(&sob);
-	}
-
-	if (fwrite(sb.buf, 1, sb.len, fp) < sb.len)
-		die_errno("could not write commit template");
-
-	strbuf_release(&sb);
-
-	determine_author_info();
-
-	/* This checks if committer ident is explicitly given */
-	git_committer_info(0);
-	if (use_editor && include_status) {
-		char *author_ident;
-		const char *committer_ident;
-
-		if (in_merge)
-			fprintf(fp,
-				"#\n"
-				"# It looks like you may be committing a MERGE.\n"
-				"# If this is not correct, please remove the file\n"
-				"#	%s\n"
-				"# and try again.\n"
-				"#\n",
-				git_path("MERGE_HEAD"));
-
-		fprintf(fp,
-			"\n"
-			"# Please enter the commit message for your changes.");
-		if (cleanup_mode == CLEANUP_ALL)
-			fprintf(fp,
-				" Lines starting\n"
-				"# with '#' will be ignored, and an empty"
-				" message aborts the commit.\n");
-		else /* CLEANUP_SPACE, that is. */
-			fprintf(fp,
-				" Lines starting\n"
-				"# with '#' will be kept; you may remove them"
-				" yourself if you want to.\n"
-				"# An empty message aborts the commit.\n");
-		if (only_include_assumed)
-			fprintf(fp, "# %s\n", only_include_assumed);
-
-		author_ident = xstrdup(fmt_name(author_name, author_email));
-		committer_ident = fmt_name(getenv("GIT_COMMITTER_NAME"),
-					   getenv("GIT_COMMITTER_EMAIL"));
-		if (strcmp(author_ident, committer_ident))
-			fprintf(fp,
-				"%s"
-				"# Author:    %s\n",
-				ident_shown++ ? "" : "#\n",
-				author_ident);
-		free(author_ident);
-
-		if (!user_ident_sufficiently_given())
-			fprintf(fp,
-				"%s"
-				"# Committer: %s\n",
-				ident_shown++ ? "" : "#\n",
-				committer_ident);
-
-		if (ident_shown)
-			fprintf(fp, "#\n");
-
-		saved_color_setting = s->use_color;
-		s->use_color = 0;
-		commitable = run_status(fp, index_file, prefix, 1, s);
-		s->use_color = saved_color_setting;
-	} else {
-		unsigned char sha1[20];
-		const char *parent = "HEAD";
-
-		if (!active_nr && read_cache() < 0)
-			die("Cannot read index");
-
-		if (amend)
-			parent = "HEAD^1";
-
-		if (get_sha1(parent, sha1))
-			commitable = !!active_nr;
-		else
-			commitable = index_differs_from(parent, 0);
-	}
-
-	fclose(fp);
-
-	if (!commitable && !in_merge && !allow_empty &&
-	    !(amend && is_a_merge(head_sha1))) {
-		run_status(stdout, index_file, prefix, 0, s);
-		return 0;
-	}
-
-	/*
-	 * Re-read the index as pre-commit hook could have updated it,
-	 * and write it out as a tree.  We must do this before we invoke
-	 * the editor and after we invoke run_status above.
-	 */
-	discard_cache();
-	read_cache_from(index_file);
-	if (!active_cache_tree)
-		active_cache_tree = cache_tree();
-	if (cache_tree_update(active_cache_tree,
-			      active_cache, active_nr, 0, 0) < 0) {
-		error("Error building trees");
-		return 0;
-	}
-
-	if (run_hook(index_file, "prepare-commit-msg",
-		     git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
-		return 0;
-
-	if (use_editor) {
-		char index[PATH_MAX];
-		const char *env[2] = { index, NULL };
-		snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
-		if (launch_editor(git_path(commit_editmsg), NULL, env)) {
-			fprintf(stderr,
-			"Please supply the message using either -m or -F option.\n");
-			exit(1);
-		}
-	}
-
-	if (!no_verify &&
-	    run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
-		return 0;
-	}
-
-	return 1;
-}
-
-/*
- * Find out if the message in the strbuf contains only whitespace and
- * Signed-off-by lines.
- */
-static int message_is_empty(struct strbuf *sb)
-{
-	struct strbuf tmpl = STRBUF_INIT;
-	const char *nl;
-	int eol, i, start = 0;
-
-	if (cleanup_mode == CLEANUP_NONE && sb->len)
-		return 0;
-
-	/* See if the template is just a prefix of the message. */
-	if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) {
-		stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
-		if (start + tmpl.len <= sb->len &&
-		    memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0)
-			start += tmpl.len;
-	}
-	strbuf_release(&tmpl);
-
-	/* Check if the rest is just whitespace and Signed-of-by's. */
-	for (i = start; i < sb->len; i++) {
-		nl = memchr(sb->buf + i, '\n', sb->len - i);
-		if (nl)
-			eol = nl - sb->buf;
-		else
-			eol = sb->len;
-
-		if (strlen(sign_off_header) <= eol - i &&
-		    !prefixcmp(sb->buf + i, sign_off_header)) {
-			i = eol;
-			continue;
-		}
-		while (i < eol)
-			if (!isspace(sb->buf[i++]))
-				return 0;
-	}
-
-	return 1;
-}
-
-static const char *find_author_by_nickname(const char *name)
-{
-	struct rev_info revs;
-	struct commit *commit;
-	struct strbuf buf = STRBUF_INIT;
-	const char *av[20];
-	int ac = 0;
-
-	init_revisions(&revs, NULL);
-	strbuf_addf(&buf, "--author=%s", name);
-	av[++ac] = "--all";
-	av[++ac] = "-i";
-	av[++ac] = buf.buf;
-	av[++ac] = NULL;
-	setup_revisions(ac, av, &revs, NULL);
-	prepare_revision_walk(&revs);
-	commit = get_revision(&revs);
-	if (commit) {
-		struct pretty_print_context ctx = {0};
-		ctx.date_mode = DATE_NORMAL;
-		strbuf_release(&buf);
-		format_commit_message(commit, "%an <%ae>", &buf, &ctx);
-		return strbuf_detach(&buf, NULL);
-	}
-	die("No existing author found with '%s'", name);
-}
-
-
-static void handle_untracked_files_arg(struct wt_status *s)
-{
-	if (!untracked_files_arg)
-		; /* default already initialized */
-	else if (!strcmp(untracked_files_arg, "no"))
-		s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
-	else if (!strcmp(untracked_files_arg, "normal"))
-		s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
-	else if (!strcmp(untracked_files_arg, "all"))
-		s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
-	else
-		die("Invalid untracked files mode '%s'", untracked_files_arg);
-}
-
-static int parse_and_validate_options(int argc, const char *argv[],
-				      const char * const usage[],
-				      const char *prefix,
-				      struct wt_status *s)
-{
-	int f = 0;
-
-	argc = parse_options(argc, argv, prefix, builtin_commit_options, usage,
-			     0);
-
-	if (force_author && !strchr(force_author, '>'))
-		force_author = find_author_by_nickname(force_author);
-
-	if (force_author && renew_authorship)
-		die("Using both --reset-author and --author does not make sense");
-
-	if (logfile || message.len || use_message)
-		use_editor = 0;
-	if (edit_flag)
-		use_editor = 1;
-	if (!use_editor)
-		setenv("GIT_EDITOR", ":", 1);
-
-	if (get_sha1("HEAD", head_sha1))
-		initial_commit = 1;
-
-	/* Sanity check options */
-	if (amend && initial_commit)
-		die("You have nothing to amend.");
-	if (amend && in_merge)
-		die("You are in the middle of a merge -- cannot amend.");
-
-	if (use_message)
-		f++;
-	if (edit_message)
-		f++;
-	if (logfile)
-		f++;
-	if (f > 1)
-		die("Only one of -c/-C/-F can be used.");
-	if (message.len && f > 0)
-		die("Option -m cannot be combined with -c/-C/-F.");
-	if (edit_message)
-		use_message = edit_message;
-	if (amend && !use_message)
-		use_message = "HEAD";
-	if (!use_message && renew_authorship)
-		die("--reset-author can be used only with -C, -c or --amend.");
-	if (use_message) {
-		unsigned char sha1[20];
-		static char utf8[] = "UTF-8";
-		const char *out_enc;
-		char *enc, *end;
-		struct commit *commit;
-
-		if (get_sha1(use_message, sha1))
-			die("could not lookup commit %s", use_message);
-		commit = lookup_commit_reference(sha1);
-		if (!commit || parse_commit(commit))
-			die("could not parse commit %s", use_message);
-
-		enc = strstr(commit->buffer, "\nencoding");
-		if (enc) {
-			end = strchr(enc + 10, '\n');
-			enc = xstrndup(enc + 10, end - (enc + 10));
-		} else {
-			enc = utf8;
-		}
-		out_enc = git_commit_encoding ? git_commit_encoding : utf8;
-
-		if (strcmp(out_enc, enc))
-			use_message_buffer =
-				reencode_string(commit->buffer, out_enc, enc);
-
-		/*
-		 * If we failed to reencode the buffer, just copy it
-		 * byte for byte so the user can try to fix it up.
-		 * This also handles the case where input and output
-		 * encodings are identical.
-		 */
-		if (use_message_buffer == NULL)
-			use_message_buffer = xstrdup(commit->buffer);
-		if (enc != utf8)
-			free(enc);
-	}
-
-	if (!!also + !!only + !!all + !!interactive > 1)
-		die("Only one of --include/--only/--all/--interactive can be used.");
-	if (argc == 0 && (also || (only && !amend)))
-		die("No paths with --include/--only does not make sense.");
-	if (argc == 0 && only && amend)
-		only_include_assumed = "Clever... amending the last one with dirty index.";
-	if (argc > 0 && !also && !only)
-		only_include_assumed = "Explicit paths specified without -i nor -o; assuming --only paths...";
-	if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
-		cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE;
-	else if (!strcmp(cleanup_arg, "verbatim"))
-		cleanup_mode = CLEANUP_NONE;
-	else if (!strcmp(cleanup_arg, "whitespace"))
-		cleanup_mode = CLEANUP_SPACE;
-	else if (!strcmp(cleanup_arg, "strip"))
-		cleanup_mode = CLEANUP_ALL;
-	else
-		die("Invalid cleanup mode %s", cleanup_arg);
-
-	handle_untracked_files_arg(s);
-
-	if (all && argc > 0)
-		die("Paths with -a does not make sense.");
-	else if (interactive && argc > 0)
-		die("Paths with --interactive does not make sense.");
-
-	if (null_termination && status_format == STATUS_FORMAT_LONG)
-		status_format = STATUS_FORMAT_PORCELAIN;
-	if (status_format != STATUS_FORMAT_LONG)
-		dry_run = 1;
-
-	return argc;
-}
-
-static int dry_run_commit(int argc, const char **argv, const char *prefix,
-			  struct wt_status *s)
-{
-	int commitable;
-	const char *index_file;
-
-	index_file = prepare_index(argc, argv, prefix, 1);
-	commitable = run_status(stdout, index_file, prefix, 0, s);
-	rollback_index_files();
-
-	return commitable ? 0 : 1;
-}
-
-static int parse_status_slot(const char *var, int offset)
-{
-	if (!strcasecmp(var+offset, "header"))
-		return WT_STATUS_HEADER;
-	if (!strcasecmp(var+offset, "updated")
-		|| !strcasecmp(var+offset, "added"))
-		return WT_STATUS_UPDATED;
-	if (!strcasecmp(var+offset, "changed"))
-		return WT_STATUS_CHANGED;
-	if (!strcasecmp(var+offset, "untracked"))
-		return WT_STATUS_UNTRACKED;
-	if (!strcasecmp(var+offset, "nobranch"))
-		return WT_STATUS_NOBRANCH;
-	if (!strcasecmp(var+offset, "unmerged"))
-		return WT_STATUS_UNMERGED;
-	return -1;
-}
-
-static int git_status_config(const char *k, const char *v, void *cb)
-{
-	struct wt_status *s = cb;
-
-	if (!strcmp(k, "status.submodulesummary")) {
-		int is_bool;
-		s->submodule_summary = git_config_bool_or_int(k, v, &is_bool);
-		if (is_bool && s->submodule_summary)
-			s->submodule_summary = -1;
-		return 0;
-	}
-	if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
-		s->use_color = git_config_colorbool(k, v, -1);
-		return 0;
-	}
-	if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
-		int slot = parse_status_slot(k, 13);
-		if (slot < 0)
-			return 0;
-		if (!v)
-			return config_error_nonbool(k);
-		color_parse(v, k, s->color_palette[slot]);
-		return 0;
-	}
-	if (!strcmp(k, "status.relativepaths")) {
-		s->relative_paths = git_config_bool(k, v);
-		return 0;
-	}
-	if (!strcmp(k, "status.showuntrackedfiles")) {
-		if (!v)
-			return config_error_nonbool(k);
-		else if (!strcmp(v, "no"))
-			s->show_untracked_files = SHOW_NO_UNTRACKED_FILES;
-		else if (!strcmp(v, "normal"))
-			s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
-		else if (!strcmp(v, "all"))
-			s->show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
-		else
-			return error("Invalid untracked files mode '%s'", v);
-		return 0;
-	}
-	return git_diff_ui_config(k, v, NULL);
-}
-
-int cmd_status(int argc, const char **argv, const char *prefix)
-{
-	struct wt_status s;
-	unsigned char sha1[20];
-	static struct option builtin_status_options[] = {
-		OPT__VERBOSE(&verbose),
-		OPT_SET_INT('s', "short", &status_format,
-			    "show status concisely", STATUS_FORMAT_SHORT),
-		OPT_SET_INT(0, "porcelain", &status_format,
-			    "show porcelain output format",
-			    STATUS_FORMAT_PORCELAIN),
-		OPT_BOOLEAN('z', "null", &null_termination,
-			    "terminate entries with NUL"),
-		{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg,
-		  "mode",
-		  "show untracked files, optional modes: all, normal, no. (Default: all)",
-		  PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
-		OPT_END(),
-	};
-
-	if (null_termination && status_format == STATUS_FORMAT_LONG)
-		status_format = STATUS_FORMAT_PORCELAIN;
-
-	wt_status_prepare(&s);
-	git_config(git_status_config, &s);
-	in_merge = file_exists(git_path("MERGE_HEAD"));
-	argc = parse_options(argc, argv, prefix,
-			     builtin_status_options,
-			     builtin_status_usage, 0);
-	handle_untracked_files_arg(&s);
-
-	if (*argv)
-		s.pathspec = get_pathspec(prefix, argv);
-
-	read_cache();
-	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, s.pathspec, NULL, NULL);
-	s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
-	s.in_merge = in_merge;
-	wt_status_collect(&s);
-
-	if (s.relative_paths)
-		s.prefix = prefix;
-	if (s.use_color == -1)
-		s.use_color = git_use_color_default;
-	if (diff_use_color_default == -1)
-		diff_use_color_default = git_use_color_default;
-
-	switch (status_format) {
-	case STATUS_FORMAT_SHORT:
-		wt_shortstatus_print(&s, null_termination);
-		break;
-	case STATUS_FORMAT_PORCELAIN:
-		wt_porcelain_print(&s, null_termination);
-		break;
-	case STATUS_FORMAT_LONG:
-		s.verbose = verbose;
-		wt_status_print(&s);
-		break;
-	}
-	return 0;
-}
-
-static void print_summary(const char *prefix, const unsigned char *sha1)
-{
-	struct rev_info rev;
-	struct commit *commit;
-	struct strbuf format = STRBUF_INIT;
-	unsigned char junk_sha1[20];
-	const char *head = resolve_ref("HEAD", junk_sha1, 0, NULL);
-	struct pretty_print_context pctx = {0};
-	struct strbuf author_ident = STRBUF_INIT;
-	struct strbuf committer_ident = STRBUF_INIT;
-
-	commit = lookup_commit(sha1);
-	if (!commit)
-		die("couldn't look up newly created commit");
-	if (!commit || parse_commit(commit))
-		die("could not parse newly created commit");
-
-	strbuf_addstr(&format, "format:%h] %s");
-
-	format_commit_message(commit, "%an <%ae>", &author_ident, &pctx);
-	format_commit_message(commit, "%cn <%ce>", &committer_ident, &pctx);
-	if (strbuf_cmp(&author_ident, &committer_ident)) {
-		strbuf_addstr(&format, "\n Author: ");
-		strbuf_addbuf_percentquote(&format, &author_ident);
-	}
-	if (!user_ident_sufficiently_given()) {
-		strbuf_addstr(&format, "\n Committer: ");
-		strbuf_addbuf_percentquote(&format, &committer_ident);
-		if (advice_implicit_identity) {
-			strbuf_addch(&format, '\n');
-			strbuf_addstr(&format, implicit_ident_advice);
-		}
-	}
-	strbuf_release(&author_ident);
-	strbuf_release(&committer_ident);
-
-	init_revisions(&rev, prefix);
-	setup_revisions(0, NULL, &rev, NULL);
-
-	rev.abbrev = 0;
-	rev.diff = 1;
-	rev.diffopt.output_format =
-		DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY;
-
-	rev.verbose_header = 1;
-	rev.show_root_diff = 1;
-	get_commit_format(format.buf, &rev);
-	rev.always_show_header = 0;
-	rev.diffopt.detect_rename = 1;
-	rev.diffopt.rename_limit = 100;
-	rev.diffopt.break_opt = 0;
-	diff_setup_done(&rev.diffopt);
-
-	printf("[%s%s ",
-		!prefixcmp(head, "refs/heads/") ?
-			head + 11 :
-			!strcmp(head, "HEAD") ?
-				"detached HEAD" :
-				head,
-		initial_commit ? " (root-commit)" : "");
-
-	if (!log_tree_commit(&rev, commit)) {
-		struct pretty_print_context ctx = {0};
-		struct strbuf buf = STRBUF_INIT;
-		ctx.date_mode = DATE_NORMAL;
-		format_commit_message(commit, format.buf + 7, &buf, &ctx);
-		printf("%s\n", buf.buf);
-		strbuf_release(&buf);
-	}
-	strbuf_release(&format);
-}
-
-static int git_commit_config(const char *k, const char *v, void *cb)
-{
-	struct wt_status *s = cb;
-
-	if (!strcmp(k, "commit.template"))
-		return git_config_pathname(&template_file, k, v);
-	if (!strcmp(k, "commit.status")) {
-		include_status = git_config_bool(k, v);
-		return 0;
-	}
-
-	return git_status_config(k, v, s);
-}
-
-int cmd_commit(int argc, const char **argv, const char *prefix)
-{
-	struct strbuf sb = STRBUF_INIT;
-	const char *index_file, *reflog_msg;
-	char *nl, *p;
-	unsigned char commit_sha1[20];
-	struct ref_lock *ref_lock;
-	struct commit_list *parents = NULL, **pptr = &parents;
-	struct stat statbuf;
-	int allow_fast_forward = 1;
-	struct wt_status s;
-
-	wt_status_prepare(&s);
-	git_config(git_commit_config, &s);
-	in_merge = file_exists(git_path("MERGE_HEAD"));
-	s.in_merge = in_merge;
-
-	if (s.use_color == -1)
-		s.use_color = git_use_color_default;
-	argc = parse_and_validate_options(argc, argv, builtin_commit_usage,
-					  prefix, &s);
-	if (dry_run) {
-		if (diff_use_color_default == -1)
-			diff_use_color_default = git_use_color_default;
-		return dry_run_commit(argc, argv, prefix, &s);
-	}
-	index_file = prepare_index(argc, argv, prefix, 0);
-
-	/* Set up everything for writing the commit object.  This includes
-	   running hooks, writing the trees, and interacting with the user.  */
-	if (!prepare_to_commit(index_file, prefix, &s)) {
-		rollback_index_files();
-		return 1;
-	}
-
-	/* Determine parents */
-	if (initial_commit) {
-		reflog_msg = "commit (initial)";
-	} else if (amend) {
-		struct commit_list *c;
-		struct commit *commit;
-
-		reflog_msg = "commit (amend)";
-		commit = lookup_commit(head_sha1);
-		if (!commit || parse_commit(commit))
-			die("could not parse HEAD commit");
-
-		for (c = commit->parents; c; c = c->next)
-			pptr = &commit_list_insert(c->item, pptr)->next;
-	} else if (in_merge) {
-		struct strbuf m = STRBUF_INIT;
-		FILE *fp;
-
-		reflog_msg = "commit (merge)";
-		pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
-		fp = fopen(git_path("MERGE_HEAD"), "r");
-		if (fp == NULL)
-			die_errno("could not open '%s' for reading",
-				  git_path("MERGE_HEAD"));
-		while (strbuf_getline(&m, fp, '\n') != EOF) {
-			unsigned char sha1[20];
-			if (get_sha1_hex(m.buf, sha1) < 0)
-				die("Corrupt MERGE_HEAD file (%s)", m.buf);
-			pptr = &commit_list_insert(lookup_commit(sha1), pptr)->next;
-		}
-		fclose(fp);
-		strbuf_release(&m);
-		if (!stat(git_path("MERGE_MODE"), &statbuf)) {
-			if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0)
-				die_errno("could not read MERGE_MODE");
-			if (!strcmp(sb.buf, "no-ff"))
-				allow_fast_forward = 0;
-		}
-		if (allow_fast_forward)
-			parents = reduce_heads(parents);
-	} else {
-		reflog_msg = "commit";
-		pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
-	}
-
-	/* Finally, get the commit message */
-	strbuf_reset(&sb);
-	if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
-		int saved_errno = errno;
-		rollback_index_files();
-		die("could not read commit message: %s", strerror(saved_errno));
-	}
-
-	/* Truncate the message just before the diff, if any. */
-	if (verbose) {
-		p = strstr(sb.buf, "\ndiff --git ");
-		if (p != NULL)
-			strbuf_setlen(&sb, p - sb.buf + 1);
-	}
-
-	if (cleanup_mode != CLEANUP_NONE)
-		stripspace(&sb, cleanup_mode == CLEANUP_ALL);
-	if (message_is_empty(&sb)) {
-		rollback_index_files();
-		fprintf(stderr, "Aborting commit due to empty commit message.\n");
-		exit(1);
-	}
-
-	if (commit_tree(sb.buf, active_cache_tree->sha1, parents, commit_sha1,
-			fmt_ident(author_name, author_email, author_date,
-				IDENT_ERROR_ON_NO_NAME))) {
-		rollback_index_files();
-		die("failed to write commit object");
-	}
-
-	ref_lock = lock_any_ref_for_update("HEAD",
-					   initial_commit ? NULL : head_sha1,
-					   0);
-
-	nl = strchr(sb.buf, '\n');
-	if (nl)
-		strbuf_setlen(&sb, nl + 1 - sb.buf);
-	else
-		strbuf_addch(&sb, '\n');
-	strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg));
-	strbuf_insert(&sb, strlen(reflog_msg), ": ", 2);
-
-	if (!ref_lock) {
-		rollback_index_files();
-		die("cannot lock HEAD ref");
-	}
-	if (write_ref_sha1(ref_lock, commit_sha1, sb.buf) < 0) {
-		rollback_index_files();
-		die("cannot update HEAD ref");
-	}
-
-	unlink(git_path("MERGE_HEAD"));
-	unlink(git_path("MERGE_MSG"));
-	unlink(git_path("MERGE_MODE"));
-	unlink(git_path("SQUASH_MSG"));
-
-	if (commit_index_files())
-		die ("Repository has been updated, but unable to write\n"
-		     "new_index file. Check that disk is not full or quota is\n"
-		     "not exceeded, and then \"git reset HEAD\" to recover.");
-
-	rerere(0);
-	run_hook(get_index_file(), "post-commit", NULL);
-	if (!quiet)
-		print_summary(prefix, commit_sha1);
-
-	return 0;
-}