[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"
#include "parse-options.h"

static char const * const shortlog_usage[] = {
	"git-shortlog [-n] [-s] [-e] [-w] [rev-opts] [--] [<commit-id>... ]",
	"",
	"[rev-opts] are documented in git-rev-list(1)",
	NULL
};

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, int defval)
{
	unsigned long ul;
	int ret;
	char *endp;

	ul = strtoul(*arg, &endp, 10);
	if (*endp && *endp != comma)
		return -1;
	if (ul > INT_MAX)
		return -1;
	ret = *arg == endp ? defval : (int)ul;
	*arg = *endp ? endp + 1 : endp;
	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 int parse_wrap_args(const struct option *opt, const char *arg, int unset)
{
	struct shortlog *log = opt->value;

	log->wrap_lines = !unset;
	if (unset)
		return 0;
	if (!arg) {
		log->wrap = DEFAULT_WRAPLEN;
		log->in1 = DEFAULT_INDENT1;
		log->in2 = DEFAULT_INDENT2;
		return 0;
	}

	log->wrap = parse_uint(&arg, ',', DEFAULT_WRAPLEN);
	log->in1 = parse_uint(&arg, ',', DEFAULT_INDENT1);
	log->in2 = parse_uint(&arg, '\0', DEFAULT_INDENT2);
	if (log->wrap < 0 || log->in1 < 0 || log->in2 < 0)
		return error(wrap_arg_usage);
	if (log->wrap &&
	    ((log->in1 && log->wrap <= log->in1) ||
	     (log->in2 && log->wrap <= log->in2)))
		return error(wrap_arg_usage);
	return 0;
}

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)
{
	static struct shortlog log;
	static struct rev_info rev;
	int nongit;

	static const struct option options[] = {
		OPT_BOOLEAN('n', "numbered", &log.sort_by_number,
			    "sort output according to the number of commits per author"),
		OPT_BOOLEAN('s', "summary", &log.summary,
			    "Suppress commit descriptions, only provides commit count"),
		OPT_BOOLEAN('e', "email", &log.email,
			    "Show the email address of each author"),
		{ OPTION_CALLBACK, 'w', NULL, &log, "w[,i1[,i2]]",
			"Linewrap output", PARSE_OPT_OPTARG, &parse_wrap_args },
		OPT_END(),
	};

	struct parse_opt_ctx_t ctx;

	prefix = setup_git_directory_gently(&nongit);
	shortlog_init(&log);
	init_revisions(&rev, prefix);
	parse_options_start(&ctx, argc, argv, PARSE_OPT_KEEP_DASHDASH |
			    PARSE_OPT_KEEP_ARGV0);

	for (;;) {
		switch (parse_options_step(&ctx, options, shortlog_usage)) {
		case PARSE_OPT_HELP:
			exit(129);
		case PARSE_OPT_DONE:
			goto parse_done;
		}
		parse_revision_opt(&rev, &ctx, options, shortlog_usage);
	}
parse_done:
	argc = parse_options_end(&ctx);

	if (setup_revisions(argc, argv, &rev, NULL) != 1) {
		error("unrecognized argument: %s", argv[1]);
		usage_with_options(shortlog_usage, options);
	}

	/* assume HEAD if from a tty */
	if (!nongit && !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"
14ec9cbd	10	#include "parse-options.h"
b8ec5923	11
14ec9cbd PH	12	static char const * const shortlog_usage[] = {
	13	"git-shortlog [-n] [-s] [-e] [-w] [rev-opts] [--] [<commit-id>... ]",
	14	"",
	15	"[rev-opts] are documented in git-rev-list(1)",
	16	NULL
	17	};
b8ec5923 JS	18
	19	static int compare_by_number(const void a1, const void a2)
	20	{
	21	const struct path_list_item i1 = a1, i2 = a2;
	22	const struct path_list l1 = i1->util, l2 = i2->util;
	23
	24	if (l1->nr < l2->nr)
6d6ab610	25	return 1;
b8ec5923 JS	26	else if (l1->nr == l2->nr)
	27	return 0;
	28	else
6d6ab610	29	return -1;
b8ec5923 JS	30	}
b8ec5923 JS	31
552bcac3	32	static void insert_one_record(struct shortlog *log,
1e931cb4 JH	33	const char *author,
1e931cb4 JH	34	const char *oneline)
b8ec5923	35	{
552bcac3	36	const char *dot3 = log->common_repo_prefix;
b8ec5923 JS	37	char buffer, p;
	38	struct path_list_item *item;
	39	struct path_list *onelines;
1e931cb4 JH	40	char namebuf[1024];
	41	size_t len;
	42	const char *eol;
	43	const char boemail, eoemail;
	44
	45	boemail = strchr(author, '<');
	46	if (!boemail)
	47	return;
	48	eoemail = strchr(boemail, '>');
	49	if (!eoemail)
	50	return;
552bcac3	51	if (!map_email(&log->mailmap, boemail+1, namebuf, sizeof(namebuf))) {
1e931cb4 JH	52	while (author < boemail && isspace(*author))
	53	author++;
	54	for (len = 0;
	55	len < sizeof(namebuf) - 1 && author + len < boemail;
	56	len++)
	57	namebuf[len] = author[len];
	58	while (0 < len && isspace(namebuf[len-1]))
	59	len--;
	60	namebuf[len] = '\0';
	61	}
4602c17d JH	62	else
	63	len = strlen(namebuf);
	64
552bcac3	65	if (log->email) {
4602c17d JH	66	size_t room = sizeof(namebuf) - len - 1;
	67	int maillen = eoemail - boemail + 1;
	68	snprintf(namebuf + len, room, " %.*s", maillen, boemail);
	69	}
b8ec5923	70
1e931cb4	71	buffer = xstrdup(namebuf);
552bcac3	72	item = path_list_insert(buffer, &log->list);
b8ec5923 JS	73	if (item->util == NULL)
	74	item->util = xcalloc(1, sizeof(struct path_list));
	75	else
	76	free(buffer);
	77
c1ce83a5 AW	78	/* Skip any leading whitespace, including any blank lines. */
	79	while (oneline && isspace(oneline))
	80	oneline++;
1e931cb4 JH	81	eol = strchr(oneline, '\n');
	82	if (!eol)
	83	eol = oneline + strlen(oneline);
cc44c765	84	if (!prefixcmp(oneline, "[PATCH")) {
72019cde	85	char *eob = strchr(oneline, ']');
1e931cb4 JH	86	if (eob && (!eol \|\| eob < eol))
1e931cb4 JH	87	oneline = eob + 1;
b8ec5923	88	}
1e931cb4	89	while (oneline && isspace(oneline) && *oneline != '\n')
b8ec5923	90	oneline++;
1e931cb4 JH	91	len = eol - oneline;
	92	while (len && isspace(oneline[len-1]))
	93	len--;
	94	buffer = xmemdupz(oneline, len);
b8ec5923	95
c95044d4 JH	96	if (dot3) {
	97	int dot3len = strlen(dot3);
	98	if (dot3len > 5) {
	99	while ((p = strstr(buffer, dot3)) != NULL) {
	100	int taillen = strlen(p) - dot3len;
	101	memcpy(p, "/.../", 5);
	102	memmove(p + 5, p + dot3len, taillen + 1);
	103	}
	104	}
b8ec5923 JS	105	}
b8ec5923 JS	106
b8ec5923 JS	107	onelines = item->util;
	108	if (onelines->nr >= onelines->alloc) {
	109	onelines->alloc = alloc_nr(onelines->nr);
	110	onelines->items = xrealloc(onelines->items,
	111	onelines->alloc
	112	* sizeof(struct path_list_item));
	113	}
	114
	115	onelines->items[onelines->nr].util = NULL;
	116	onelines->items[onelines->nr++].path = buffer;
	117	}
	118
552bcac3	119	static void read_from_stdin(struct shortlog *log)
b8ec5923	120	{
1e931cb4 JH	121	char author[1024], oneline[1024];
	122
	123	while (fgets(author, sizeof(author), stdin) != NULL) {
	124	if (!(author[0] == 'A' \|\| author[0] == 'a') \|\|
	125	prefixcmp(author + 1, "uthor: "))
	126	continue;
	127	while (fgets(oneline, sizeof(oneline), stdin) &&
	128	oneline[0] != '\n')
	129	; /* discard headers */
	130	while (fgets(oneline, sizeof(oneline), stdin) &&
	131	oneline[0] == '\n')
	132	; /* discard blanks */
552bcac3	133	insert_one_record(log, author + 8, oneline);
b8ec5923 JS	134	}
	135	}
	136
552bcac3	137	void shortlog_add_commit(struct shortlog log, struct commit commit)
b8ec5923	138	{
552bcac3	139	const char author = NULL, buffer;
b8ec5923	140
552bcac3 DB	141	buffer = commit->buffer;
	142	while (buffer && buffer != '\n') {
	143	const char *eol = strchr(buffer, '\n');
b8ec5923	144
552bcac3 DB	145	if (eol == NULL)
	146	eol = buffer + strlen(buffer);
	147	else
	148	eol++;
b8ec5923	149
552bcac3 DB	150	if (!prefixcmp(buffer, "author "))
	151	author = buffer + 7;
	152	buffer = eol;
b8ec5923	153	}
552bcac3 DB	154	if (!author)
	155	die("Missing author: %s",
	156	sha1_to_hex(commit->object.sha1));
	157	if (*buffer)
	158	buffer++;
	159	insert_one_record(log, author, !*buffer ? "<none>" : buffer);
	160	}
	161
	162	static void get_from_rev(struct rev_info rev, struct shortlog log)
	163	{
	164	struct commit *commit;
	165
	166	if (prepare_revision_walk(rev))
	167	die("revision walk setup failed");
	168	while ((commit = get_revision(rev)) != NULL)
	169	shortlog_add_commit(log, commit);
b8ec5923 JS	170	}
b8ec5923 JS	171
14ec9cbd	172	static int parse_uint(char const **arg, int comma, int defval)
3d711d97 JH	173	{
	174	unsigned long ul;
	175	int ret;
	176	char *endp;
	177
	178	ul = strtoul(*arg, &endp, 10);
14ec9cbd	179	if (endp && endp != comma)
3d711d97	180	return -1;
14ec9cbd	181	if (ul > INT_MAX)
3d711d97	182	return -1;
14ec9cbd PH	183	ret = *arg == endp ? defval : (int)ul;
14ec9cbd PH	184	arg = endp ? endp + 1 : endp;
3d711d97 JH	185	return ret;
	186	}
	187
	188	static const char wrap_arg_usage[] = "-w[<width>[,<indent1>[,<indent2>]]]";
	189	#define DEFAULT_WRAPLEN 76
	190	#define DEFAULT_INDENT1 6
	191	#define DEFAULT_INDENT2 9
	192
14ec9cbd	193	static int parse_wrap_args(const struct option opt, const char arg, int unset)
3d711d97	194	{
14ec9cbd PH	195	struct shortlog *log = opt->value;
	196
	197	log->wrap_lines = !unset;
	198	if (unset)
	199	return 0;
	200	if (!arg) {
	201	log->wrap = DEFAULT_WRAPLEN;
	202	log->in1 = DEFAULT_INDENT1;
	203	log->in2 = DEFAULT_INDENT2;
	204	return 0;
	205	}
	206
	207	log->wrap = parse_uint(&arg, ',', DEFAULT_WRAPLEN);
	208	log->in1 = parse_uint(&arg, ',', DEFAULT_INDENT1);
	209	log->in2 = parse_uint(&arg, '\0', DEFAULT_INDENT2);
	210	if (log->wrap < 0 \|\| log->in1 < 0 \|\| log->in2 < 0)
	211	return error(wrap_arg_usage);
	212	if (log->wrap &&
	213	((log->in1 && log->wrap <= log->in1) \|\|
	214	(log->in2 && log->wrap <= log->in2)))
	215	return error(wrap_arg_usage);
	216	return 0;
3d711d97 JH	217	}
3d711d97 JH	218
552bcac3 DB	219	void shortlog_init(struct shortlog *log)
	220	{
	221	memset(log, 0, sizeof(*log));
	222
	223	read_mailmap(&log->mailmap, ".mailmap", &log->common_repo_prefix);
	224
	225	log->list.strdup_paths = 1;
	226	log->wrap = DEFAULT_WRAPLEN;
	227	log->in1 = DEFAULT_INDENT1;
	228	log->in2 = DEFAULT_INDENT2;
	229	}
	230
b8ec5923 JS	231	int cmd_shortlog(int argc, const char *argv, const char prefix)
b8ec5923 JS	232	{
14ec9cbd PH	233	static struct shortlog log;
14ec9cbd PH	234	static struct rev_info rev;
abe549e1	235	int nongit;
552bcac3	236
14ec9cbd PH	237	static const struct option options[] = {
	238	OPT_BOOLEAN('n', "numbered", &log.sort_by_number,
	239	"sort output according to the number of commits per author"),
	240	OPT_BOOLEAN('s', "summary", &log.summary,
	241	"Suppress commit descriptions, only provides commit count"),
	242	OPT_BOOLEAN('e', "email", &log.email,
	243	"Show the email address of each author"),
	244	{ OPTION_CALLBACK, 'w', NULL, &log, "w[,i1[,i2]]",
	245	"Linewrap output", PARSE_OPT_OPTARG, &parse_wrap_args },
	246	OPT_END(),
	247	};
	248
	249	struct parse_opt_ctx_t ctx;
	250
abe549e1	251	prefix = setup_git_directory_gently(&nongit);
552bcac3	252	shortlog_init(&log);
14ec9cbd PH	253	init_revisions(&rev, prefix);
	254	parse_options_start(&ctx, argc, argv, PARSE_OPT_KEEP_DASHDASH \|
	255	PARSE_OPT_KEEP_ARGV0);
	256
	257	for (;;) {
14ec9cbd PH	258	switch (parse_options_step(&ctx, options, shortlog_usage)) {
	259	case PARSE_OPT_HELP:
	260	exit(129);
	261	case PARSE_OPT_DONE:
	262	goto parse_done;
3d711d97	263	}
6b61ec05	264	parse_revision_opt(&rev, &ctx, options, shortlog_usage);
14ec9cbd PH	265	}
	266	parse_done:
	267	argc = parse_options_end(&ctx);
	268
	269	if (setup_revisions(argc, argv, &rev, NULL) != 1) {
	270	error("unrecognized argument: %s", argv[1]);
	271	usage_with_options(shortlog_usage, options);
b8ec5923 JS	272	}
b8ec5923 JS	273
3384a2df	274	/* assume HEAD if from a tty */
abe549e1	275	if (!nongit && !rev.pending.nr && isatty(0))
3384a2df	276	add_head_to_pending(&rev);
0497c620	277	if (rev.pending.nr == 0) {
552bcac3	278	read_from_stdin(&log);
0497c620	279	}
b8ec5923	280	else
552bcac3	281	get_from_rev(&rev, &log);
b8ec5923	282
552bcac3 DB	283	shortlog_output(&log);
	284	return 0;
	285	}
b8ec5923	286
552bcac3 DB	287	void shortlog_output(struct shortlog *log)
	288	{
	289	int i, j;
	290	if (log->sort_by_number)
	291	qsort(log->list.items, log->list.nr, sizeof(struct path_list_item),
	292	compare_by_number);
	293	for (i = 0; i < log->list.nr; i++) {
	294	struct path_list *onelines = log->list.items[i].util;
b8ec5923	295
552bcac3 DB	296	if (log->summary) {
552bcac3 DB	297	printf("%6d\t%s\n", onelines->nr, log->list.items[i].path);
ac60c94d	298	} else {
552bcac3	299	printf("%s (%d):\n", log->list.items[i].path, onelines->nr);
3714e7c8	300	for (j = onelines->nr - 1; j >= 0; j--) {
3d711d97 JH	301	const char *msg = onelines->items[j].path;
3d711d97 JH	302
552bcac3 DB	303	if (log->wrap_lines) {
	304	int col = print_wrapped_text(msg, log->in1, log->in2, log->wrap);
	305	if (col != log->wrap)
3d711d97 JH	306	putchar('\n');
	307	}
	308	else
	309	printf(" %s\n", msg);
3714e7c8 JS	310	}
3714e7c8 JS	311	putchar('\n');
b8ec5923 JS	312	}
	313
	314	onelines->strdup_paths = 1;
	315	path_list_clear(onelines, 1);
	316	free(onelines);
552bcac3	317	log->list.items[i].util = NULL;
b8ec5923 JS	318	}
b8ec5923 JS	319
552bcac3 DB	320	log->list.strdup_paths = 1;
	321	path_list_clear(&log->list, 1);
	322	log->mailmap.strdup_paths = 1;
	323	path_list_clear(&log->mailmap, 1);
b8ec5923	324	}