[git/git.git] / builtin-log.c

/*
 * Builtin "git log" and related commands (show, whatchanged)
 *
 * (C) Copyright 2006 Linus Torvalds
 *		 2006 Junio Hamano
 */
#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"

/* this is in builtin-diff.c */
void add_head(struct rev_info *revs);

static void cmd_log_init(int argc, const char **argv, char **envp,
		      struct rev_info *rev)
{
	rev->abbrev = DEFAULT_ABBREV;
	rev->commit_format = CMIT_FMT_DEFAULT;
	rev->verbose_header = 1;
	argc = setup_revisions(argc, argv, rev, "HEAD");
	if (rev->diffopt.pickaxe || rev->diffopt.filter)
		rev->always_show_header = 0;
	if (argc > 1)
		die("unrecognized argument: %s", argv[1]);
}

static int cmd_log_walk(struct rev_info *rev)
{
	struct commit *commit;

	prepare_revision_walk(rev);
	setup_pager();
	while ((commit = get_revision(rev)) != NULL) {
		log_tree_commit(rev, commit);
		free(commit->buffer);
		commit->buffer = NULL;
		free_commit_list(commit->parents);
		commit->parents = NULL;
	}
	return 0;
}

int cmd_whatchanged(int argc, const char **argv, char **envp)
{
	struct rev_info rev;

	git_config(git_diff_ui_config);
	init_revisions(&rev);
	rev.diff = 1;
	rev.diffopt.recursive = 1;
	rev.simplify_history = 0;
	cmd_log_init(argc, argv, envp, &rev);
	if (!rev.diffopt.output_format)
		rev.diffopt.output_format = DIFF_FORMAT_RAW;
	return cmd_log_walk(&rev);
}

int cmd_show(int argc, const char **argv, char **envp)
{
	struct rev_info rev;

	git_config(git_diff_ui_config);
	init_revisions(&rev);
	rev.diff = 1;
	rev.diffopt.recursive = 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, envp, &rev);
	return cmd_log_walk(&rev);
}

int cmd_log(int argc, const char **argv, char **envp)
{
	struct rev_info rev;

	git_config(git_diff_ui_config);
	init_revisions(&rev);
	rev.always_show_header = 1;
	cmd_log_init(argc, argv, envp, &rev);
	return cmd_log_walk(&rev);
}

static int istitlechar(char c)
{
	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
		(c >= '0' && c <= '9') || c == '.' || c == '_';
}

static char *extra_headers = NULL;
static int extra_headers_size = 0;

static int git_format_config(const char *var, const char *value)
{
	if (!strcmp(var, "format.headers")) {
		int len = strlen(value);
		extra_headers_size += len + 1;
		extra_headers = realloc(extra_headers, extra_headers_size);
		extra_headers[extra_headers_size - len - 1] = 0;
		strcat(extra_headers, value);
		return 0;
	}
	if (!strcmp(var, "diff.color")) {
		return 0;
	}
	return git_diff_ui_config(var, value);
}


static FILE *realstdout = NULL;
static const char *output_directory = NULL;

static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
{
	char filename[1024];
	char *sol;
	int len = 0;

	if (output_directory) {
		strlcpy(filename, output_directory, 1010);
		len = strlen(filename);
		if (filename[len - 1] != '/')
			filename[len++] = '/';
	}

	sprintf(filename + len, "%04d", nr);
	len = strlen(filename);

	sol = strstr(commit->buffer, "\n\n");
	if (sol) {
		int j, space = 1;

		sol += 2;
		/* strip [PATCH] or [PATCH blabla] */
		if (!keep_subject && !strncmp(sol, "[PATCH", 6)) {
			char *eos = strchr(sol + 6, ']');
			if (eos) {
				while (isspace(*eos))
					eos++;
				sol = eos;
			}
		}

		for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
			if (istitlechar(sol[j])) {
				if (space) {
					filename[len++] = '-';
					space = 0;
				}
				filename[len++] = sol[j];
				if (sol[j] == '.')
					while (sol[j + 1] == '.')
						j++;
			} else
				space = 1;
		}
		while (filename[len - 1] == '.' || filename[len - 1] == '-')
			len--;
	}
	strcpy(filename + len, ".txt");
	fprintf(realstdout, "%s\n", filename);
	freopen(filename, "w", stdout);
}

static int get_patch_id(struct commit *commit, struct diff_options *options,
		unsigned char *sha1)
{
	diff_tree_sha1(commit->parents->item->object.sha1, commit->object.sha1,
			"", options);
	diffcore_std(options);
	return diff_flush_patch_id(options, sha1);
}

static void get_patch_ids(struct rev_info *rev, struct diff_options *options)
{
	struct rev_info check_rev;
	struct commit *commit;
	struct object *o1, *o2;
	unsigned flags1, flags2;
	unsigned char sha1[20];

	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.");

	diff_setup(options);
	options->recursive = 1;
	if (diff_setup_done(options) < 0)
		die("diff_setup_done failed");

	/* given a range a..b get all patch ids for b..a */
	init_revisions(&check_rev);
	o1->flags ^= UNINTERESTING;
	o2->flags ^= UNINTERESTING;
	add_pending_object(&check_rev, o1, "o1");
	add_pending_object(&check_rev, o2, "o2");
	prepare_revision_walk(&check_rev);

	while ((commit = get_revision(&check_rev)) != NULL) {
		/* ignore merges */
		if (commit->parents && commit->parents->next)
			continue;

		if (!get_patch_id(commit, options, sha1))
			created_object(sha1, xcalloc(1, sizeof(struct object)));
	}

	/* 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(char *dest, unsigned int length, char *base)
{
	const char *committer = git_committer_info(1);
	const char *email_start = strrchr(committer, '<');
	const char *email_end = strrchr(committer, '>');
	if(!email_start || !email_end || email_start > email_end - 1)
		die("Could not extract email from committer identity.");
	snprintf(dest, length, "%s.%u.git.%.*s", base, time(NULL),
		 email_end - email_start - 1, email_start + 1);
}

int cmd_format_patch(int argc, const char **argv, char **envp)
{
	struct commit *commit;
	struct commit **list = NULL;
	struct rev_info rev;
	int nr = 0, total, i, j;
	int use_stdout = 0;
	int numbered = 0;
	int start_number = -1;
	int keep_subject = 0;
	int ignore_if_in_upstream = 0;
	struct diff_options patch_id_opts;
	char *add_signoff = NULL;
	char message_id[1024];
	char ref_message_id[1024];

	git_config(git_format_config);
	init_revisions(&rev);
	rev.commit_format = CMIT_FMT_EMAIL;
	rev.verbose_header = 1;
	rev.diff = 1;
	rev.combine_merges = 0;
	rev.ignore_merges = 1;
	rev.diffopt.msg_sep = "";
	rev.diffopt.recursive = 1;

	rev.extra_headers = extra_headers;

	/*
	 * Parse the arguments before setup_revisions(), or something
	 * like "git fmt-patch -o a123 HEAD^.." may fail; a123 is
	 * possibly a valid SHA1.
	 */
	for (i = 1, j = 1; i < argc; i++) {
		if (!strcmp(argv[i], "--stdout"))
			use_stdout = 1;
		else if (!strcmp(argv[i], "-n") ||
				!strcmp(argv[i], "--numbered"))
			numbered = 1;
		else if (!strncmp(argv[i], "--start-number=", 15))
			start_number = strtol(argv[i] + 15, NULL, 10);
		else if (!strcmp(argv[i], "--start-number")) {
			i++;
			if (i == argc)
				die("Need a number for --start-number");
			start_number = strtol(argv[i], NULL, 10);
		}
		else if (!strcmp(argv[i], "-k") ||
				!strcmp(argv[i], "--keep-subject")) {
			keep_subject = 1;
			rev.total = -1;
		}
		else if (!strcmp(argv[i], "--output-directory") ||
			 !strcmp(argv[i], "-o")) {
			i++;
			if (argc <= i)
				die("Which directory?");
			if (output_directory)
				die("Two output directories?");
			output_directory = argv[i];
		}
		else if (!strcmp(argv[i], "--signoff") ||
			 !strcmp(argv[i], "-s")) {
			const char *committer;
			const char *endpos;
			setup_ident();
			committer = git_committer_info(1);
			endpos = strchr(committer, '>');
			if (!endpos)
				die("bogos committer info %s\n", committer);
			add_signoff = xmalloc(endpos - committer + 2);
			memcpy(add_signoff, committer, endpos - committer + 1);
			add_signoff[endpos - committer + 1] = 0;
		}
		else if (!strcmp(argv[i], "--attach"))
			rev.mime_boundary = git_version_string;
		else if (!strncmp(argv[i], "--attach=", 9))
			rev.mime_boundary = argv[i] + 9;
		else if (!strcmp(argv[i], "--ignore-if-in-upstream"))
			ignore_if_in_upstream = 1;
		else
			argv[j++] = argv[i];
	}
	argc = j;

	if (start_number < 0)
		start_number = 1;
	if (numbered && keep_subject)
		die ("-n 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)
		rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH;

	if (output_directory) {
		if (use_stdout)
			die("standard output, or directory, which one?");
		if (mkdir(output_directory, 0777) < 0 && errno != EEXIST)
			die("Could not create directory %s",
			    output_directory);
	}

	if (rev.pending.nr == 1) {
		rev.pending.objects[0].item->flags |= UNINTERESTING;
		add_head(&rev);
	}

	if (ignore_if_in_upstream)
		get_patch_ids(&rev, &patch_id_opts);

	if (!use_stdout)
		realstdout = fdopen(dup(1), "w");

	prepare_revision_walk(&rev);
	while ((commit = get_revision(&rev)) != NULL) {
		unsigned char sha1[20];

		/* ignore merges */
		if (commit->parents && commit->parents->next)
			continue;

		if (ignore_if_in_upstream &&
				!get_patch_id(commit, &patch_id_opts, sha1) &&
				lookup_object(sha1))
			continue;

		nr++;
		list = realloc(list, nr * sizeof(list[0]));
		list[nr - 1] = commit;
	}
	total = nr;
	if (numbered)
		rev.total = total + start_number - 1;
	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 (nr == (total - 2)) {
			strncpy(ref_message_id, message_id,
				sizeof(ref_message_id));
			ref_message_id[sizeof(ref_message_id)-1] = '\0';
			rev.ref_message_id = ref_message_id;
		}
		gen_message_id(message_id, sizeof(message_id),
			       sha1_to_hex(commit->object.sha1));
		rev.message_id = message_id;
		if (!use_stdout)
			reopen_stdout(commit, rev.nr, keep_subject);
		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);
	return 0;
}
Commit	Line	Data
70827b15 LT	1	/*
	2	* Builtin "git log" and related commands (show, whatchanged)
	3	*
	4	* (C) Copyright 2006 Linus Torvalds
	5	* 2006 Junio Hamano
	6	*/
	7	#include "cache.h"
	8	#include "commit.h"
	9	#include "diff.h"
	10	#include "revision.h"
	11	#include "log-tree.h"
91efcf60	12	#include "builtin.h"
70827b15	13
e686eb98 JS	14	/* this is in builtin-diff.c */
	15	void add_head(struct rev_info *revs);
	16
9dafea26	17	static void cmd_log_init(int argc, const char argv, char envp,
70827b15 LT	18	struct rev_info *rev)
70827b15 LT	19	{
70827b15 LT	20	rev->abbrev = DEFAULT_ABBREV;
	21	rev->commit_format = CMIT_FMT_DEFAULT;
	22	rev->verbose_header = 1;
	23	argc = setup_revisions(argc, argv, rev, "HEAD");
9dafea26 TH	24	if (rev->diffopt.pickaxe \|\| rev->diffopt.filter)
9dafea26 TH	25	rev->always_show_header = 0;
70827b15 LT	26	if (argc > 1)
70827b15 LT	27	die("unrecognized argument: %s", argv[1]);
9dafea26 TH	28	}
	29
	30	static int cmd_log_walk(struct rev_info *rev)
	31	{
	32	struct commit *commit;
70827b15 LT	33
	34	prepare_revision_walk(rev);
	35	setup_pager();
	36	while ((commit = get_revision(rev)) != NULL) {
	37	log_tree_commit(rev, commit);
	38	free(commit->buffer);
	39	commit->buffer = NULL;
cb115748 LT	40	free_commit_list(commit->parents);
cb115748 LT	41	commit->parents = NULL;
70827b15 LT	42	}
	43	return 0;
	44	}
	45
	46	int cmd_whatchanged(int argc, const char argv, char envp)
	47	{
	48	struct rev_info rev;
	49
83ad63cf	50	git_config(git_diff_ui_config);
70827b15 LT	51	init_revisions(&rev);
	52	rev.diff = 1;
	53	rev.diffopt.recursive = 1;
9202434c	54	rev.simplify_history = 0;
9dafea26 TH	55	cmd_log_init(argc, argv, envp, &rev);
	56	if (!rev.diffopt.output_format)
	57	rev.diffopt.output_format = DIFF_FORMAT_RAW;
	58	return cmd_log_walk(&rev);
70827b15 LT	59	}
	60
	61	int cmd_show(int argc, const char argv, char envp)
	62	{
	63	struct rev_info rev;
	64
83ad63cf	65	git_config(git_diff_ui_config);
70827b15 LT	66	init_revisions(&rev);
	67	rev.diff = 1;
	68	rev.diffopt.recursive = 1;
	69	rev.combine_merges = 1;
	70	rev.dense_combined_merges = 1;
	71	rev.always_show_header = 1;
	72	rev.ignore_merges = 0;
	73	rev.no_walk = 1;
9dafea26 TH	74	cmd_log_init(argc, argv, envp, &rev);
9dafea26 TH	75	return cmd_log_walk(&rev);
70827b15 LT	76	}
	77
	78	int cmd_log(int argc, const char argv, char envp)
	79	{
	80	struct rev_info rev;
	81
83ad63cf	82	git_config(git_diff_ui_config);
70827b15 LT	83	init_revisions(&rev);
70827b15 LT	84	rev.always_show_header = 1;
9dafea26 TH	85	cmd_log_init(argc, argv, envp, &rev);
9dafea26 TH	86	return cmd_log_walk(&rev);
70827b15	87	}
91efcf60	88
0377db77 JS	89	static int istitlechar(char c)
	90	{
	91	return (c >= 'a' && c <= 'z') \|\| (c >= 'A' && c <= 'Z') \|\|
	92	(c >= '0' && c <= '9') \|\| c == '.' \|\| c == '_';
	93	}
	94
20ff0680 JS	95	static char *extra_headers = NULL;
	96	static int extra_headers_size = 0;
	97
	98	static int git_format_config(const char var, const char value)
	99	{
	100	if (!strcmp(var, "format.headers")) {
	101	int len = strlen(value);
	102	extra_headers_size += len + 1;
	103	extra_headers = realloc(extra_headers, extra_headers_size);
	104	extra_headers[extra_headers_size - len - 1] = 0;
	105	strcat(extra_headers, value);
	106	return 0;
	107	}
f3aafa4d RA	108	if (!strcmp(var, "diff.color")) {
	109	return 0;
	110	}
83ad63cf	111	return git_diff_ui_config(var, value);
20ff0680 JS	112	}
	113
	114
81f3a188	115	static FILE *realstdout = NULL;
efd02016	116	static const char *output_directory = NULL;
81f3a188	117
8ac80a57	118	static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
0377db77 JS	119	{
	120	char filename[1024];
	121	char *sol;
2448482b	122	int len = 0;
0377db77	123
2448482b	124	if (output_directory) {
817151e6	125	strlcpy(filename, output_directory, 1010);
2448482b JS	126	len = strlen(filename);
	127	if (filename[len - 1] != '/')
	128	filename[len++] = '/';
	129	}
0377db77	130
2448482b	131	sprintf(filename + len, "%04d", nr);
0377db77 JS	132	len = strlen(filename);
	133
	134	sol = strstr(commit->buffer, "\n\n");
	135	if (sol) {
	136	int j, space = 1;
	137
	138	sol += 2;
	139	/* strip [PATCH] or [PATCH blabla] */
8ac80a57	140	if (!keep_subject && !strncmp(sol, "[PATCH", 6)) {
0377db77 JS	141	char *eos = strchr(sol + 6, ']');
	142	if (eos) {
	143	while (isspace(*eos))
	144	eos++;
	145	sol = eos;
	146	}
	147	}
	148
	149	for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
	150	if (istitlechar(sol[j])) {
	151	if (space) {
	152	filename[len++] = '-';
	153	space = 0;
	154	}
	155	filename[len++] = sol[j];
	156	if (sol[j] == '.')
	157	while (sol[j + 1] == '.')
	158	j++;
	159	} else
	160	space = 1;
	161	}
	162	while (filename[len - 1] == '.' \|\| filename[len - 1] == '-')
	163	len--;
	164	}
	165	strcpy(filename + len, ".txt");
81f3a188	166	fprintf(realstdout, "%s\n", filename);
0377db77 JS	167	freopen(filename, "w", stdout);
	168	}
	169
9c6efa36 JS	170	static int get_patch_id(struct commit commit, struct diff_options options,
	171	unsigned char *sha1)
	172	{
	173	diff_tree_sha1(commit->parents->item->object.sha1, commit->object.sha1,
	174	"", options);
	175	diffcore_std(options);
	176	return diff_flush_patch_id(options, sha1);
	177	}
	178
	179	static void get_patch_ids(struct rev_info rev, struct diff_options options)
	180	{
	181	struct rev_info check_rev;
	182	struct commit *commit;
	183	struct object o1, o2;
	184	unsigned flags1, flags2;
	185	unsigned char sha1[20];
	186
	187	if (rev->pending.nr != 2)
	188	die("Need exactly one range.");
	189
	190	o1 = rev->pending.objects[0].item;
	191	flags1 = o1->flags;
	192	o2 = rev->pending.objects[1].item;
	193	flags2 = o2->flags;
	194
	195	if ((flags1 & UNINTERESTING) == (flags2 & UNINTERESTING))
	196	die("Not a range.");
	197
	198	diff_setup(options);
	199	options->recursive = 1;
	200	if (diff_setup_done(options) < 0)
	201	die("diff_setup_done failed");
	202
	203	/* given a range a..b get all patch ids for b..a */
	204	init_revisions(&check_rev);
	205	o1->flags ^= UNINTERESTING;
	206	o2->flags ^= UNINTERESTING;
	207	add_pending_object(&check_rev, o1, "o1");
	208	add_pending_object(&check_rev, o2, "o2");
	209	prepare_revision_walk(&check_rev);
	210
	211	while ((commit = get_revision(&check_rev)) != NULL) {
	212	/* ignore merges */
	213	if (commit->parents && commit->parents->next)
	214	continue;
	215
	216	if (!get_patch_id(commit, options, sha1))
	217	created_object(sha1, xcalloc(1, sizeof(struct object)));
	218	}
	219
	220	/* reset for next revision walk */
81db0941 JS	221	clear_commit_marks((struct commit *)o1,
	222	SEEN \| UNINTERESTING \| SHOWN \| ADDED);
	223	clear_commit_marks((struct commit *)o2,
	224	SEEN \| UNINTERESTING \| SHOWN \| ADDED);
9c6efa36 JS	225	o1->flags = flags1;
	226	o2->flags = flags2;
	227	}
	228
d1566f78 JT	229	static void gen_message_id(char dest, unsigned int length, char base)
	230	{
	231	const char *committer = git_committer_info(1);
	232	const char *email_start = strrchr(committer, '<');
	233	const char *email_end = strrchr(committer, '>');
	234	if(!email_start \|\| !email_end \|\| email_start > email_end - 1)
	235	die("Could not extract email from committer identity.");
	236	snprintf(dest, length, "%s.%u.git.%.*s", base, time(NULL),
	237	email_end - email_start - 1, email_start + 1);
	238	}
	239
91efcf60 JH	240	int cmd_format_patch(int argc, const char argv, char envp)
	241	{
	242	struct commit *commit;
	243	struct commit **list = NULL;
	244	struct rev_info rev;
2448482b	245	int nr = 0, total, i, j;
0377db77	246	int use_stdout = 0;
596524b3	247	int numbered = 0;
fa0f02df	248	int start_number = -1;
8ac80a57	249	int keep_subject = 0;
9c6efa36 JS	250	int ignore_if_in_upstream = 0;
9c6efa36 JS	251	struct diff_options patch_id_opts;
cf2251b6	252	char *add_signoff = NULL;
d1566f78 JT	253	char message_id[1024];
d1566f78 JT	254	char ref_message_id[1024];
91efcf60	255
97beb812	256	git_config(git_format_config);
91efcf60 JH	257	init_revisions(&rev);
	258	rev.commit_format = CMIT_FMT_EMAIL;
	259	rev.verbose_header = 1;
	260	rev.diff = 1;
91efcf60 JH	261	rev.combine_merges = 0;
91efcf60 JH	262	rev.ignore_merges = 1;
27e1b127 JH	263	rev.diffopt.msg_sep = "";
27e1b127 JH	264	rev.diffopt.recursive = 1;
91efcf60	265
20ff0680 JS	266	rev.extra_headers = extra_headers;
20ff0680 JS	267
2448482b JS	268	/*
	269	* Parse the arguments before setup_revisions(), or something
	270	* like "git fmt-patch -o a123 HEAD^.." may fail; a123 is
	271	* possibly a valid SHA1.
	272	*/
	273	for (i = 1, j = 1; i < argc; i++) {
	274	if (!strcmp(argv[i], "--stdout"))
0377db77	275	use_stdout = 1;
596524b3 JS	276	else if (!strcmp(argv[i], "-n") \|\|
	277	!strcmp(argv[i], "--numbered"))
	278	numbered = 1;
fa0f02df JS	279	else if (!strncmp(argv[i], "--start-number=", 15))
	280	start_number = strtol(argv[i] + 15, NULL, 10);
	281	else if (!strcmp(argv[i], "--start-number")) {
	282	i++;
	283	if (i == argc)
	284	die("Need a number for --start-number");
	285	start_number = strtol(argv[i], NULL, 10);
cf2251b6 JH	286	}
cf2251b6 JH	287	else if (!strcmp(argv[i], "-k") \|\|
8ac80a57 JS	288	!strcmp(argv[i], "--keep-subject")) {
	289	keep_subject = 1;
	290	rev.total = -1;
cf2251b6	291	}
efd02016 JH	292	else if (!strcmp(argv[i], "--output-directory") \|\|
efd02016 JH	293	!strcmp(argv[i], "-o")) {
2448482b	294	i++;
efd02016 JH	295	if (argc <= i)
	296	die("Which directory?");
	297	if (output_directory)
	298	die("Two output directories?");
	299	output_directory = argv[i];
698ce6f8	300	}
cf2251b6 JH	301	else if (!strcmp(argv[i], "--signoff") \|\|
cf2251b6 JH	302	!strcmp(argv[i], "-s")) {
6c4cca1c EB	303	const char *committer;
	304	const char *endpos;
	305	setup_ident();
	306	committer = git_committer_info(1);
	307	endpos = strchr(committer, '>');
cf2251b6 JH	308	if (!endpos)
	309	die("bogos committer info %s\n", committer);
	310	add_signoff = xmalloc(endpos - committer + 2);
	311	memcpy(add_signoff, committer, endpos - committer + 1);
	312	add_signoff[endpos - committer + 1] = 0;
	313	}
698ce6f8 JS	314	else if (!strcmp(argv[i], "--attach"))
	315	rev.mime_boundary = git_version_string;
	316	else if (!strncmp(argv[i], "--attach=", 9))
	317	rev.mime_boundary = argv[i] + 9;
9c6efa36 JS	318	else if (!strcmp(argv[i], "--ignore-if-in-upstream"))
9c6efa36 JS	319	ignore_if_in_upstream = 1;
698ce6f8	320	else
2448482b	321	argv[j++] = argv[i];
0377db77	322	}
2448482b JS	323	argc = j;
2448482b JS	324
add5c8a5	325	if (start_number < 0)
fa0f02df	326	start_number = 1;
63b398a4	327	if (numbered && keep_subject)
8ac80a57 JS	328	die ("-n and -k are mutually exclusive.");
8ac80a57 JS	329
2448482b JS	330	argc = setup_revisions(argc, argv, &rev, "HEAD");
	331	if (argc > 1)
	332	die ("unrecognized argument: %s", argv[1]);
0377db77	333
c9b5ef99 TH	334	if (!rev.diffopt.output_format)
	335	rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT \| DIFF_FORMAT_PATCH;
	336
efd02016 JH	337	if (output_directory) {
	338	if (use_stdout)
	339	die("standard output, or directory, which one?");
	340	if (mkdir(output_directory, 0777) < 0 && errno != EEXIST)
	341	die("Could not create directory %s",
	342	output_directory);
	343	}
	344
1f1e895f LT	345	if (rev.pending.nr == 1) {
1f1e895f LT	346	rev.pending.objects[0].item->flags \|= UNINTERESTING;
e686eb98 JS	347	add_head(&rev);
	348	}
	349
9c6efa36 JS	350	if (ignore_if_in_upstream)
	351	get_patch_ids(&rev, &patch_id_opts);
	352
81f3a188 JS	353	if (!use_stdout)
	354	realstdout = fdopen(dup(1), "w");
	355
91efcf60 JH	356	prepare_revision_walk(&rev);
91efcf60 JH	357	while ((commit = get_revision(&rev)) != NULL) {
9c6efa36 JS	358	unsigned char sha1[20];
9c6efa36 JS	359
0377db77 JS	360	/* ignore merges */
	361	if (commit->parents && commit->parents->next)
	362	continue;
9c6efa36 JS	363
	364	if (ignore_if_in_upstream &&
	365	!get_patch_id(commit, &patch_id_opts, sha1) &&
	366	lookup_object(sha1))
	367	continue;
	368
91efcf60 JH	369	nr++;
	370	list = realloc(list, nr * sizeof(list[0]));
	371	list[nr - 1] = commit;
	372	}
0377db77	373	total = nr;
596524b3	374	if (numbered)
fa0f02df	375	rev.total = total + start_number - 1;
cf2251b6	376	rev.add_signoff = add_signoff;
91efcf60 JH	377	while (0 <= --nr) {
	378	int shown;
	379	commit = list[nr];
add5c8a5	380	rev.nr = total - nr + (start_number - 1);
d1566f78 JT	381	/* Make the second and subsequent mails replies to the first */
	382	if (nr == (total - 2)) {
	383	strncpy(ref_message_id, message_id,
	384	sizeof(ref_message_id));
	385	ref_message_id[sizeof(ref_message_id)-1] = '\0';
	386	rev.ref_message_id = ref_message_id;
	387	}
	388	gen_message_id(message_id, sizeof(message_id),
	389	sha1_to_hex(commit->object.sha1));
	390	rev.message_id = message_id;
0377db77	391	if (!use_stdout)
8ac80a57	392	reopen_stdout(commit, rev.nr, keep_subject);
91efcf60 JH	393	shown = log_tree_commit(&rev, commit);
	394	free(commit->buffer);
	395	commit->buffer = NULL;
add5c8a5 JH	396
	397	/* We put one extra blank line between formatted
	398	* patches and this flag is used by log-tree code
	399	* to see if it needs to emit a LF before showing
	400	* the log; when using one file per patch, we do
	401	* not want the extra blank line.
	402	*/
	403	if (!use_stdout)
	404	rev.shown_one = 0;
698ce6f8 JS	405	if (shown) {
	406	if (rev.mime_boundary)
	407	printf("\n--%s%s--\n\n\n",
	408	mime_boundary_leader,
	409	rev.mime_boundary);
	410	else
	411	printf("-- \n%s\n\n", git_version_string);
	412	}
0377db77 JS	413	if (!use_stdout)
0377db77 JS	414	fclose(stdout);
91efcf60 JH	415	}
	416	free(list);
	417	return 0;
	418	}
	419