[thirdparty/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 int cmd_log_wc(int argc, const char **argv, char **envp,
		      struct rev_info *rev)
{
	struct commit *commit;

	rev->abbrev = DEFAULT_ABBREV;
	rev->commit_format = CMIT_FMT_DEFAULT;
	rev->verbose_header = 1;
	argc = setup_revisions(argc, argv, rev, "HEAD");
	if (rev->always_show_header) {
		if (rev->diffopt.pickaxe || rev->diffopt.filter) {
			rev->always_show_header = 0;
			if (rev->diffopt.output_format == DIFF_FORMAT_RAW)
				rev->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
		}
	}

	if (argc > 1)
		die("unrecognized argument: %s", argv[1]);

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

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

	init_revisions(&rev);
	rev.diff = 1;
	rev.diffopt.recursive = 1;
	return cmd_log_wc(argc, argv, envp, &rev);
}

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

	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;
	return cmd_log_wc(argc, argv, envp, &rev);
}

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

	init_revisions(&rev);
	rev.always_show_header = 1;
	rev.diffopt.recursive = 1;
	return cmd_log_wc(argc, argv, envp, &rev);
}

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

static FILE *realstdout = NULL;
static 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) {
		strncpy(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);
}

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;

	init_revisions(&rev);
	rev.commit_format = CMIT_FMT_EMAIL;
	rev.verbose_header = 1;
	rev.diff = 1;
	rev.diffopt.with_raw = 0;
	rev.diffopt.with_stat = 1;
	rev.combine_merges = 0;
	rev.ignore_merges = 1;
	rev.diffopt.output_format = DIFF_FORMAT_PATCH;

	/*
	 * 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], "-o")) {
			if (argc < 3)
				die ("Which directory?");
			if (mkdir(argv[i + 1], 0777) < 0 && errno != EEXIST)
				die("Could not create directory %s",
						argv[i + 1]);
			output_directory = strdup(argv[i + 1]);
			i++;
		}
		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
			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.pending_objects && rev.pending_objects->next == NULL) {
		rev.pending_objects->item->flags |= UNINTERESTING;
		add_head(&rev);
	}

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

	prepare_revision_walk(&rev);
	while ((commit = get_revision(&rev)) != NULL) {
		/* ignore merges */
		if (commit->parents && commit->parents->next)
			continue;
		nr++;
		list = realloc(list, nr * sizeof(list[0]));
		list[nr - 1] = commit;
	}
	total = nr;
	if (numbered)
		rev.total = total + start_number - 1;
	while (0 <= --nr) {
		int shown;
		commit = list[nr];
		rev.nr = total - nr + (start_number - 1);
		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);
	}
	if (output_directory)
		free(output_directory);
	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
70827b15 LT	17	static int cmd_log_wc(int argc, const char argv, char envp,
	18	struct rev_info *rev)
	19	{
	20	struct commit *commit;
	21
	22	rev->abbrev = DEFAULT_ABBREV;
	23	rev->commit_format = CMIT_FMT_DEFAULT;
	24	rev->verbose_header = 1;
	25	argc = setup_revisions(argc, argv, rev, "HEAD");
582af688 SE	26	if (rev->always_show_header) {
	27	if (rev->diffopt.pickaxe \|\| rev->diffopt.filter) {
	28	rev->always_show_header = 0;
	29	if (rev->diffopt.output_format == DIFF_FORMAT_RAW)
	30	rev->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
	31	}
	32	}
70827b15 LT	33
	34	if (argc > 1)
	35	die("unrecognized argument: %s", argv[1]);
	36
	37	prepare_revision_walk(rev);
	38	setup_pager();
	39	while ((commit = get_revision(rev)) != NULL) {
	40	log_tree_commit(rev, commit);
	41	free(commit->buffer);
	42	commit->buffer = NULL;
	43	}
	44	return 0;
	45	}
	46
	47	int cmd_whatchanged(int argc, const char argv, char envp)
	48	{
	49	struct rev_info rev;
	50
	51	init_revisions(&rev);
	52	rev.diff = 1;
	53	rev.diffopt.recursive = 1;
	54	return cmd_log_wc(argc, argv, envp, &rev);
	55	}
	56
	57	int cmd_show(int argc, const char argv, char envp)
	58	{
	59	struct rev_info rev;
	60
	61	init_revisions(&rev);
	62	rev.diff = 1;
	63	rev.diffopt.recursive = 1;
	64	rev.combine_merges = 1;
	65	rev.dense_combined_merges = 1;
	66	rev.always_show_header = 1;
	67	rev.ignore_merges = 0;
	68	rev.no_walk = 1;
	69	return cmd_log_wc(argc, argv, envp, &rev);
	70	}
	71
	72	int cmd_log(int argc, const char argv, char envp)
	73	{
	74	struct rev_info rev;
	75
	76	init_revisions(&rev);
	77	rev.always_show_header = 1;
	78	rev.diffopt.recursive = 1;
	79	return cmd_log_wc(argc, argv, envp, &rev);
	80	}
91efcf60	81
0377db77 JS	82	static int istitlechar(char c)
	83	{
	84	return (c >= 'a' && c <= 'z') \|\| (c >= 'A' && c <= 'Z') \|\|
	85	(c >= '0' && c <= '9') \|\| c == '.' \|\| c == '_';
	86	}
	87
81f3a188	88	static FILE *realstdout = NULL;
2448482b	89	static char *output_directory = NULL;
81f3a188	90
8ac80a57	91	static void reopen_stdout(struct commit *commit, int nr, int keep_subject)
0377db77 JS	92	{
	93	char filename[1024];
	94	char *sol;
2448482b	95	int len = 0;
0377db77	96
2448482b JS	97	if (output_directory) {
	98	strncpy(filename, output_directory, 1010);
	99	len = strlen(filename);
	100	if (filename[len - 1] != '/')
	101	filename[len++] = '/';
	102	}
0377db77	103
2448482b	104	sprintf(filename + len, "%04d", nr);
0377db77 JS	105	len = strlen(filename);
	106
	107	sol = strstr(commit->buffer, "\n\n");
	108	if (sol) {
	109	int j, space = 1;
	110
	111	sol += 2;
	112	/* strip [PATCH] or [PATCH blabla] */
8ac80a57	113	if (!keep_subject && !strncmp(sol, "[PATCH", 6)) {
0377db77 JS	114	char *eos = strchr(sol + 6, ']');
	115	if (eos) {
	116	while (isspace(*eos))
	117	eos++;
	118	sol = eos;
	119	}
	120	}
	121
	122	for (j = 0; len < 1024 - 6 && sol[j] && sol[j] != '\n'; j++) {
	123	if (istitlechar(sol[j])) {
	124	if (space) {
	125	filename[len++] = '-';
	126	space = 0;
	127	}
	128	filename[len++] = sol[j];
	129	if (sol[j] == '.')
	130	while (sol[j + 1] == '.')
	131	j++;
	132	} else
	133	space = 1;
	134	}
	135	while (filename[len - 1] == '.' \|\| filename[len - 1] == '-')
	136	len--;
	137	}
	138	strcpy(filename + len, ".txt");
81f3a188	139	fprintf(realstdout, "%s\n", filename);
0377db77 JS	140	freopen(filename, "w", stdout);
	141	}
	142
91efcf60 JH	143	int cmd_format_patch(int argc, const char argv, char envp)
	144	{
	145	struct commit *commit;
	146	struct commit **list = NULL;
	147	struct rev_info rev;
2448482b	148	int nr = 0, total, i, j;
0377db77	149	int use_stdout = 0;
596524b3	150	int numbered = 0;
fa0f02df	151	int start_number = -1;
8ac80a57	152	int keep_subject = 0;
91efcf60 JH	153
	154	init_revisions(&rev);
	155	rev.commit_format = CMIT_FMT_EMAIL;
	156	rev.verbose_header = 1;
	157	rev.diff = 1;
	158	rev.diffopt.with_raw = 0;
	159	rev.diffopt.with_stat = 1;
	160	rev.combine_merges = 0;
	161	rev.ignore_merges = 1;
	162	rev.diffopt.output_format = DIFF_FORMAT_PATCH;
91efcf60	163
2448482b JS	164	/*
	165	* Parse the arguments before setup_revisions(), or something
	166	* like "git fmt-patch -o a123 HEAD^.." may fail; a123 is
	167	* possibly a valid SHA1.
	168	*/
	169	for (i = 1, j = 1; i < argc; i++) {
	170	if (!strcmp(argv[i], "--stdout"))
0377db77	171	use_stdout = 1;
596524b3 JS	172	else if (!strcmp(argv[i], "-n") \|\|
	173	!strcmp(argv[i], "--numbered"))
	174	numbered = 1;
fa0f02df JS	175	else if (!strncmp(argv[i], "--start-number=", 15))
	176	start_number = strtol(argv[i] + 15, NULL, 10);
	177	else if (!strcmp(argv[i], "--start-number")) {
	178	i++;
	179	if (i == argc)
	180	die("Need a number for --start-number");
	181	start_number = strtol(argv[i], NULL, 10);
	182	} else if (!strcmp(argv[i], "-k") \|\|
8ac80a57 JS	183	!strcmp(argv[i], "--keep-subject")) {
	184	keep_subject = 1;
	185	rev.total = -1;
	186	} else if (!strcmp(argv[i], "-o")) {
2448482b JS	187	if (argc < 3)
	188	die ("Which directory?");
	189	if (mkdir(argv[i + 1], 0777) < 0 && errno != EEXIST)
	190	die("Could not create directory %s",
	191	argv[i + 1]);
	192	output_directory = strdup(argv[i + 1]);
	193	i++;
698ce6f8 JS	194	}
	195	else if (!strcmp(argv[i], "--attach"))
	196	rev.mime_boundary = git_version_string;
	197	else if (!strncmp(argv[i], "--attach=", 9))
	198	rev.mime_boundary = argv[i] + 9;
	199	else
2448482b	200	argv[j++] = argv[i];
0377db77	201	}
2448482b JS	202	argc = j;
2448482b JS	203
add5c8a5	204	if (start_number < 0)
fa0f02df	205	start_number = 1;
63b398a4	206	if (numbered && keep_subject)
8ac80a57 JS	207	die ("-n and -k are mutually exclusive.");
8ac80a57 JS	208
2448482b JS	209	argc = setup_revisions(argc, argv, &rev, "HEAD");
	210	if (argc > 1)
	211	die ("unrecognized argument: %s", argv[1]);
0377db77	212
e686eb98 JS	213	if (rev.pending_objects && rev.pending_objects->next == NULL) {
	214	rev.pending_objects->item->flags \|= UNINTERESTING;
	215	add_head(&rev);
	216	}
	217
81f3a188 JS	218	if (!use_stdout)
	219	realstdout = fdopen(dup(1), "w");
	220
91efcf60 JH	221	prepare_revision_walk(&rev);
91efcf60 JH	222	while ((commit = get_revision(&rev)) != NULL) {
0377db77 JS	223	/* ignore merges */
	224	if (commit->parents && commit->parents->next)
	225	continue;
91efcf60 JH	226	nr++;
	227	list = realloc(list, nr * sizeof(list[0]));
	228	list[nr - 1] = commit;
	229	}
0377db77	230	total = nr;
596524b3	231	if (numbered)
fa0f02df	232	rev.total = total + start_number - 1;
91efcf60 JH	233	while (0 <= --nr) {
	234	int shown;
	235	commit = list[nr];
add5c8a5	236	rev.nr = total - nr + (start_number - 1);
0377db77	237	if (!use_stdout)
8ac80a57	238	reopen_stdout(commit, rev.nr, keep_subject);
91efcf60 JH	239	shown = log_tree_commit(&rev, commit);
	240	free(commit->buffer);
	241	commit->buffer = NULL;
add5c8a5 JH	242
	243	/* We put one extra blank line between formatted
	244	* patches and this flag is used by log-tree code
	245	* to see if it needs to emit a LF before showing
	246	* the log; when using one file per patch, we do
	247	* not want the extra blank line.
	248	*/
	249	if (!use_stdout)
	250	rev.shown_one = 0;
698ce6f8 JS	251	if (shown) {
	252	if (rev.mime_boundary)
	253	printf("\n--%s%s--\n\n\n",
	254	mime_boundary_leader,
	255	rev.mime_boundary);
	256	else
	257	printf("-- \n%s\n\n", git_version_string);
	258	}
0377db77 JS	259	if (!use_stdout)
0377db77 JS	260	fclose(stdout);
91efcf60	261	}
2448482b JS	262	if (output_directory)
2448482b JS	263	free(output_directory);
91efcf60 JH	264	free(list);
	265	return 0;
	266	}
	267