[thirdparty/git.git] / builtin-shortlog.c

#include "builtin.h"
#include "cache.h"
#include "commit.h"
#include "diff.h"
#include "path-list.h"
#include "revision.h"
#include "utf8.h"
#include "mailmap.h"
#include "shortlog.h"

static const char shortlog_usage[] =
"git-shortlog [-n] [-s] [-e] [<commit-id>... ]";

static int compare_by_number(const void *a1, const void *a2)
{
	const struct path_list_item *i1 = a1, *i2 = a2;
	const struct path_list *l1 = i1->util, *l2 = i2->util;

	if (l1->nr < l2->nr)
		return 1;
	else if (l1->nr == l2->nr)
		return 0;
	else
		return -1;
}

static void insert_one_record(struct shortlog *log,
			      const char *author,
			      const char *oneline)
{
	const char *dot3 = log->common_repo_prefix;
	char *buffer, *p;
	struct path_list_item *item;
	struct path_list *onelines;
	char namebuf[1024];
	size_t len;
	const char *eol;
	const char *boemail, *eoemail;

	boemail = strchr(author, '<');
	if (!boemail)
		return;
	eoemail = strchr(boemail, '>');
	if (!eoemail)
		return;
	if (!map_email(&log->mailmap, boemail+1, namebuf, sizeof(namebuf))) {
		while (author < boemail && isspace(*author))
			author++;
		for (len = 0;
		     len < sizeof(namebuf) - 1 && author + len < boemail;
		     len++)
			namebuf[len] = author[len];
		while (0 < len && isspace(namebuf[len-1]))
			len--;
		namebuf[len] = '\0';
	}
	else
		len = strlen(namebuf);

	if (log->email) {
		size_t room = sizeof(namebuf) - len - 1;
		int maillen = eoemail - boemail + 1;
		snprintf(namebuf + len, room, " %.*s", maillen, boemail);
	}

	buffer = xstrdup(namebuf);
	item = path_list_insert(buffer, &log->list);
	if (item->util == NULL)
		item->util = xcalloc(1, sizeof(struct path_list));
	else
		free(buffer);

	/* Skip any leading whitespace, including any blank lines. */
	while (*oneline && isspace(*oneline))
		oneline++;
	eol = strchr(oneline, '\n');
	if (!eol)
		eol = oneline + strlen(oneline);
	if (!prefixcmp(oneline, "[PATCH")) {
		char *eob = strchr(oneline, ']');
		if (eob && (!eol || eob < eol))
			oneline = eob + 1;
	}
	while (*oneline && isspace(*oneline) && *oneline != '\n')
		oneline++;
	len = eol - oneline;
	while (len && isspace(oneline[len-1]))
		len--;
	buffer = xmemdupz(oneline, len);

	if (dot3) {
		int dot3len = strlen(dot3);
		if (dot3len > 5) {
			while ((p = strstr(buffer, dot3)) != NULL) {
				int taillen = strlen(p) - dot3len;
				memcpy(p, "/.../", 5);
				memmove(p + 5, p + dot3len, taillen + 1);
			}
		}
	}

	onelines = item->util;
	if (onelines->nr >= onelines->alloc) {
		onelines->alloc = alloc_nr(onelines->nr);
		onelines->items = xrealloc(onelines->items,
				onelines->alloc
				* sizeof(struct path_list_item));
	}

	onelines->items[onelines->nr].util = NULL;
	onelines->items[onelines->nr++].path = buffer;
}

static void read_from_stdin(struct shortlog *log)
{
	char author[1024], oneline[1024];

	while (fgets(author, sizeof(author), stdin) != NULL) {
		if (!(author[0] == 'A' || author[0] == 'a') ||
		    prefixcmp(author + 1, "uthor: "))
			continue;
		while (fgets(oneline, sizeof(oneline), stdin) &&
		       oneline[0] != '\n')
			; /* discard headers */
		while (fgets(oneline, sizeof(oneline), stdin) &&
		       oneline[0] == '\n')
			; /* discard blanks */
		insert_one_record(log, author + 8, oneline);
	}
}

void shortlog_add_commit(struct shortlog *log, struct commit *commit)
{
	const char *author = NULL, *buffer;

	buffer = commit->buffer;
	while (*buffer && *buffer != '\n') {
		const char *eol = strchr(buffer, '\n');

		if (eol == NULL)
			eol = buffer + strlen(buffer);
		else
			eol++;

		if (!prefixcmp(buffer, "author "))
			author = buffer + 7;
		buffer = eol;
	}
	if (!author)
		die("Missing author: %s",
		    sha1_to_hex(commit->object.sha1));
	if (*buffer)
		buffer++;
	insert_one_record(log, author, !*buffer ? "<none>" : buffer);
}

static void get_from_rev(struct rev_info *rev, struct shortlog *log)
{
	struct commit *commit;

	if (prepare_revision_walk(rev))
		die("revision walk setup failed");
	while ((commit = get_revision(rev)) != NULL)
		shortlog_add_commit(log, commit);
}

static int parse_uint(char const **arg, int comma)
{
	unsigned long ul;
	int ret;
	char *endp;

	ul = strtoul(*arg, &endp, 10);
	if (endp != *arg && *endp && *endp != comma)
		return -1;
	ret = (int) ul;
	if (ret != ul)
		return -1;
	*arg = endp;
	if (**arg)
		(*arg)++;
	return ret;
}

static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
#define DEFAULT_WRAPLEN 76
#define DEFAULT_INDENT1 6
#define DEFAULT_INDENT2 9

static void parse_wrap_args(const char *arg, int *in1, int *in2, int *wrap)
{
	arg += 2; /* skip -w */

	*wrap = parse_uint(&arg, ',');
	if (*wrap < 0)
		die(wrap_arg_usage);
	*in1 = parse_uint(&arg, ',');
	if (*in1 < 0)
		die(wrap_arg_usage);
	*in2 = parse_uint(&arg, '\0');
	if (*in2 < 0)
		die(wrap_arg_usage);

	if (!*wrap)
		*wrap = DEFAULT_WRAPLEN;
	if (!*in1)
		*in1 = DEFAULT_INDENT1;
	if (!*in2)
		*in2 = DEFAULT_INDENT2;
	if (*wrap &&
	    ((*in1 && *wrap <= *in1) ||
	     (*in2 && *wrap <= *in2)))
		die(wrap_arg_usage);
}

void shortlog_init(struct shortlog *log)
{
	memset(log, 0, sizeof(*log));

	read_mailmap(&log->mailmap, ".mailmap", &log->common_repo_prefix);

	log->list.strdup_paths = 1;
	log->wrap = DEFAULT_WRAPLEN;
	log->in1 = DEFAULT_INDENT1;
	log->in2 = DEFAULT_INDENT2;
}

int cmd_shortlog(int argc, const char **argv, const char *prefix)
{
	struct shortlog log;
	struct rev_info rev;

	shortlog_init(&log);

	/* since -n is a shadowed rev argument, parse our args first */
	while (argc > 1) {
		if (!strcmp(argv[1], "-n") || !strcmp(argv[1], "--numbered"))
			log.sort_by_number = 1;
		else if (!strcmp(argv[1], "-s") ||
				!strcmp(argv[1], "--summary"))
			log.summary = 1;
		else if (!strcmp(argv[1], "-e") ||
			 !strcmp(argv[1], "--email"))
			log.email = 1;
		else if (!prefixcmp(argv[1], "-w")) {
			log.wrap_lines = 1;
			parse_wrap_args(argv[1], &log.in1, &log.in2, &log.wrap);
		}
		else if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
			usage(shortlog_usage);
		else
			break;
		argv++;
		argc--;
	}
	init_revisions(&rev, prefix);
	argc = setup_revisions(argc, argv, &rev, NULL);
	if (argc > 1)
		die ("unrecognized argument: %s", argv[1]);

	/* assume HEAD if from a tty */
	if (!rev.pending.nr && isatty(0))
		add_head_to_pending(&rev);
	if (rev.pending.nr == 0) {
		read_from_stdin(&log);
	}
	else
		get_from_rev(&rev, &log);

	shortlog_output(&log);
	return 0;
}

void shortlog_output(struct shortlog *log)
{
	int i, j;
	if (log->sort_by_number)
		qsort(log->list.items, log->list.nr, sizeof(struct path_list_item),
			compare_by_number);
	for (i = 0; i < log->list.nr; i++) {
		struct path_list *onelines = log->list.items[i].util;

		if (log->summary) {
			printf("%6d\t%s\n", onelines->nr, log->list.items[i].path);
		} else {
			printf("%s (%d):\n", log->list.items[i].path, onelines->nr);
			for (j = onelines->nr - 1; j >= 0; j--) {
				const char *msg = onelines->items[j].path;

				if (log->wrap_lines) {
					int col = print_wrapped_text(msg, log->in1, log->in2, log->wrap);
					if (col != log->wrap)
						putchar('\n');
				}
				else
					printf("      %s\n", msg);
			}
			putchar('\n');
		}

		onelines->strdup_paths = 1;
		path_list_clear(onelines, 1);
		free(onelines);
		log->list.items[i].util = NULL;
	}

	log->list.strdup_paths = 1;
	path_list_clear(&log->list, 1);
	log->mailmap.strdup_paths = 1;
	path_list_clear(&log->mailmap, 1);
}
Commit	Line	Data
b8ec5923 JS	1	#include "builtin.h"
	2	#include "cache.h"
	3	#include "commit.h"
	4	#include "diff.h"
	5	#include "path-list.h"
	6	#include "revision.h"
3714e7c8	7	#include "utf8.h"
7c1c6782	8	#include "mailmap.h"
552bcac3	9	#include "shortlog.h"
b8ec5923 JS	10
b8ec5923 JS	11	static const char shortlog_usage[] =
08359b00	12	"git-shortlog [-n] [-s] [-e] [<commit-id>... ]";
b8ec5923 JS	13
	14	static int compare_by_number(const void a1, const void a2)
	15	{
	16	const struct path_list_item i1 = a1, i2 = a2;
	17	const struct path_list l1 = i1->util, l2 = i2->util;
	18
	19	if (l1->nr < l2->nr)
6d6ab610	20	return 1;
b8ec5923 JS	21	else if (l1->nr == l2->nr)
	22	return 0;
	23	else
6d6ab610	24	return -1;
b8ec5923 JS	25	}
b8ec5923 JS	26
552bcac3	27	static void insert_one_record(struct shortlog *log,
1e931cb4 JH	28	const char *author,
1e931cb4 JH	29	const char *oneline)
b8ec5923	30	{
552bcac3	31	const char *dot3 = log->common_repo_prefix;
b8ec5923 JS	32	char buffer, p;
	33	struct path_list_item *item;
	34	struct path_list *onelines;
1e931cb4 JH	35	char namebuf[1024];
	36	size_t len;
	37	const char *eol;
	38	const char boemail, eoemail;
	39
	40	boemail = strchr(author, '<');
	41	if (!boemail)
	42	return;
	43	eoemail = strchr(boemail, '>');
	44	if (!eoemail)
	45	return;
552bcac3	46	if (!map_email(&log->mailmap, boemail+1, namebuf, sizeof(namebuf))) {
1e931cb4 JH	47	while (author < boemail && isspace(*author))
	48	author++;
	49	for (len = 0;
	50	len < sizeof(namebuf) - 1 && author + len < boemail;
	51	len++)
	52	namebuf[len] = author[len];
	53	while (0 < len && isspace(namebuf[len-1]))
	54	len--;
	55	namebuf[len] = '\0';
	56	}
4602c17d JH	57	else
	58	len = strlen(namebuf);
	59
552bcac3	60	if (log->email) {
4602c17d JH	61	size_t room = sizeof(namebuf) - len - 1;
	62	int maillen = eoemail - boemail + 1;
	63	snprintf(namebuf + len, room, " %.*s", maillen, boemail);
	64	}
b8ec5923	65
1e931cb4	66	buffer = xstrdup(namebuf);
552bcac3	67	item = path_list_insert(buffer, &log->list);
b8ec5923 JS	68	if (item->util == NULL)
	69	item->util = xcalloc(1, sizeof(struct path_list));
	70	else
	71	free(buffer);
	72
c1ce83a5 AW	73	/* Skip any leading whitespace, including any blank lines. */
	74	while (oneline && isspace(oneline))
	75	oneline++;
1e931cb4 JH	76	eol = strchr(oneline, '\n');
	77	if (!eol)
	78	eol = oneline + strlen(oneline);
cc44c765	79	if (!prefixcmp(oneline, "[PATCH")) {
72019cde	80	char *eob = strchr(oneline, ']');
1e931cb4 JH	81	if (eob && (!eol \|\| eob < eol))
1e931cb4 JH	82	oneline = eob + 1;
b8ec5923	83	}
1e931cb4	84	while (oneline && isspace(oneline) && *oneline != '\n')
b8ec5923	85	oneline++;
1e931cb4 JH	86	len = eol - oneline;
	87	while (len && isspace(oneline[len-1]))
	88	len--;
	89	buffer = xmemdupz(oneline, len);
b8ec5923	90
c95044d4 JH	91	if (dot3) {
	92	int dot3len = strlen(dot3);
	93	if (dot3len > 5) {
	94	while ((p = strstr(buffer, dot3)) != NULL) {
	95	int taillen = strlen(p) - dot3len;
	96	memcpy(p, "/.../", 5);
	97	memmove(p + 5, p + dot3len, taillen + 1);
	98	}
	99	}
b8ec5923 JS	100	}
b8ec5923 JS	101
b8ec5923 JS	102	onelines = item->util;
	103	if (onelines->nr >= onelines->alloc) {
	104	onelines->alloc = alloc_nr(onelines->nr);
	105	onelines->items = xrealloc(onelines->items,
	106	onelines->alloc
	107	* sizeof(struct path_list_item));
	108	}
	109
	110	onelines->items[onelines->nr].util = NULL;
	111	onelines->items[onelines->nr++].path = buffer;
	112	}
	113
552bcac3	114	static void read_from_stdin(struct shortlog *log)
b8ec5923	115	{
1e931cb4 JH	116	char author[1024], oneline[1024];
	117
	118	while (fgets(author, sizeof(author), stdin) != NULL) {
	119	if (!(author[0] == 'A' \|\| author[0] == 'a') \|\|
	120	prefixcmp(author + 1, "uthor: "))
	121	continue;
	122	while (fgets(oneline, sizeof(oneline), stdin) &&
	123	oneline[0] != '\n')
	124	; /* discard headers */
	125	while (fgets(oneline, sizeof(oneline), stdin) &&
	126	oneline[0] == '\n')
	127	; /* discard blanks */
552bcac3	128	insert_one_record(log, author + 8, oneline);
b8ec5923 JS	129	}
	130	}
	131
552bcac3	132	void shortlog_add_commit(struct shortlog log, struct commit commit)
b8ec5923	133	{
552bcac3	134	const char author = NULL, buffer;
b8ec5923	135
552bcac3 DB	136	buffer = commit->buffer;
	137	while (buffer && buffer != '\n') {
	138	const char *eol = strchr(buffer, '\n');
b8ec5923	139
552bcac3 DB	140	if (eol == NULL)
	141	eol = buffer + strlen(buffer);
	142	else
	143	eol++;
b8ec5923	144
552bcac3 DB	145	if (!prefixcmp(buffer, "author "))
	146	author = buffer + 7;
	147	buffer = eol;
b8ec5923	148	}
552bcac3 DB	149	if (!author)
	150	die("Missing author: %s",
	151	sha1_to_hex(commit->object.sha1));
	152	if (*buffer)
	153	buffer++;
	154	insert_one_record(log, author, !*buffer ? "<none>" : buffer);
	155	}
	156
	157	static void get_from_rev(struct rev_info rev, struct shortlog log)
	158	{
	159	struct commit *commit;
	160
	161	if (prepare_revision_walk(rev))
	162	die("revision walk setup failed");
	163	while ((commit = get_revision(rev)) != NULL)
	164	shortlog_add_commit(log, commit);
b8ec5923 JS	165	}
b8ec5923 JS	166
3d711d97 JH	167	static int parse_uint(char const **arg, int comma)
	168	{
	169	unsigned long ul;
	170	int ret;
	171	char *endp;
	172
	173	ul = strtoul(*arg, &endp, 10);
	174	if (endp != arg && endp && *endp != comma)
	175	return -1;
	176	ret = (int) ul;
	177	if (ret != ul)
	178	return -1;
	179	*arg = endp;
	180	if (**arg)
	181	(*arg)++;
	182	return ret;
	183	}
	184
	185	static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
	186	#define DEFAULT_WRAPLEN 76
	187	#define DEFAULT_INDENT1 6
	188	#define DEFAULT_INDENT2 9
	189
	190	static void parse_wrap_args(const char arg, int in1, int in2, int wrap)
	191	{
	192	arg += 2; /* skip -w */
	193
	194	*wrap = parse_uint(&arg, ',');
	195	if (*wrap < 0)
	196	die(wrap_arg_usage);
	197	*in1 = parse_uint(&arg, ',');
	198	if (*in1 < 0)
	199	die(wrap_arg_usage);
	200	*in2 = parse_uint(&arg, '\0');
	201	if (*in2 < 0)
	202	die(wrap_arg_usage);
	203
	204	if (!*wrap)
	205	*wrap = DEFAULT_WRAPLEN;
	206	if (!*in1)
	207	*in1 = DEFAULT_INDENT1;
	208	if (!*in2)
	209	*in2 = DEFAULT_INDENT2;
	210	if (*wrap &&
	211	((in1 && wrap <= *in1) \|\|
	212	(in2 && wrap <= *in2)))
	213	die(wrap_arg_usage);
	214	}
	215
552bcac3 DB	216	void shortlog_init(struct shortlog *log)
	217	{
	218	memset(log, 0, sizeof(*log));
	219
	220	read_mailmap(&log->mailmap, ".mailmap", &log->common_repo_prefix);
	221
	222	log->list.strdup_paths = 1;
	223	log->wrap = DEFAULT_WRAPLEN;
	224	log->in1 = DEFAULT_INDENT1;
	225	log->in2 = DEFAULT_INDENT2;
	226	}
	227
b8ec5923 JS	228	int cmd_shortlog(int argc, const char *argv, const char prefix)
b8ec5923 JS	229	{
552bcac3	230	struct shortlog log;
b8ec5923	231	struct rev_info rev;
552bcac3 DB	232
552bcac3 DB	233	shortlog_init(&log);
b8ec5923	234
6d6ab610	235	/* since -n is a shadowed rev argument, parse our args first */
b8ec5923 JS	236	while (argc > 1) {
b8ec5923 JS	237	if (!strcmp(argv[1], "-n") \|\| !strcmp(argv[1], "--numbered"))
552bcac3	238	log.sort_by_number = 1;
b8ec5923 JS	239	else if (!strcmp(argv[1], "-s") \|\|
b8ec5923 JS	240	!strcmp(argv[1], "--summary"))
552bcac3	241	log.summary = 1;
4602c17d JH	242	else if (!strcmp(argv[1], "-e") \|\|
4602c17d JH	243	!strcmp(argv[1], "--email"))
552bcac3	244	log.email = 1;
3d711d97	245	else if (!prefixcmp(argv[1], "-w")) {
552bcac3 DB	246	log.wrap_lines = 1;
552bcac3 DB	247	parse_wrap_args(argv[1], &log.in1, &log.in2, &log.wrap);
3d711d97	248	}
b8ec5923 JS	249	else if (!strcmp(argv[1], "-h") \|\| !strcmp(argv[1], "--help"))
	250	usage(shortlog_usage);
	251	else
6d6ab610	252	break;
b8ec5923 JS	253	argv++;
	254	argc--;
	255	}
6d6ab610 JS	256	init_revisions(&rev, prefix);
	257	argc = setup_revisions(argc, argv, &rev, NULL);
	258	if (argc > 1)
	259	die ("unrecognized argument: %s", argv[1]);
b8ec5923	260
3384a2df JH	261	/* assume HEAD if from a tty */
	262	if (!rev.pending.nr && isatty(0))
	263	add_head_to_pending(&rev);
0497c620	264	if (rev.pending.nr == 0) {
552bcac3	265	read_from_stdin(&log);
0497c620	266	}
b8ec5923	267	else
552bcac3	268	get_from_rev(&rev, &log);
b8ec5923	269
552bcac3 DB	270	shortlog_output(&log);
	271	return 0;
	272	}
b8ec5923	273
552bcac3 DB	274	void shortlog_output(struct shortlog *log)
	275	{
	276	int i, j;
	277	if (log->sort_by_number)
	278	qsort(log->list.items, log->list.nr, sizeof(struct path_list_item),
	279	compare_by_number);
	280	for (i = 0; i < log->list.nr; i++) {
	281	struct path_list *onelines = log->list.items[i].util;
b8ec5923	282
552bcac3 DB	283	if (log->summary) {
552bcac3 DB	284	printf("%6d\t%s\n", onelines->nr, log->list.items[i].path);
ac60c94d	285	} else {
552bcac3	286	printf("%s (%d):\n", log->list.items[i].path, onelines->nr);
3714e7c8	287	for (j = onelines->nr - 1; j >= 0; j--) {
3d711d97 JH	288	const char *msg = onelines->items[j].path;
3d711d97 JH	289
552bcac3 DB	290	if (log->wrap_lines) {
	291	int col = print_wrapped_text(msg, log->in1, log->in2, log->wrap);
	292	if (col != log->wrap)
3d711d97 JH	293	putchar('\n');
	294	}
	295	else
	296	printf(" %s\n", msg);
3714e7c8 JS	297	}
3714e7c8 JS	298	putchar('\n');
b8ec5923 JS	299	}
	300
	301	onelines->strdup_paths = 1;
	302	path_list_clear(onelines, 1);
	303	free(onelines);
552bcac3	304	log->list.items[i].util = NULL;
b8ec5923 JS	305	}
b8ec5923 JS	306
552bcac3 DB	307	log->list.strdup_paths = 1;
	308	path_list_clear(&log->list, 1);
	309	log->mailmap.strdup_paths = 1;
	310	path_list_clear(&log->mailmap, 1);
b8ec5923	311	}