[thirdparty/git.git] / ls-files.c

/*
 * This merges the file listing in the directory cache index
 * with the actual working directory list, and shows different
 * combinations of the two.
 *
 * Copyright (C) Linus Torvalds, 2005
 */
#include <dirent.h>
#include <fnmatch.h>

#include "cache.h"

static int show_deleted = 0;
static int show_cached = 0;
static int show_others = 0;
static int show_ignored = 0;
static int show_stage = 0;
static int show_unmerged = 0;
static int line_terminator = '\n';

static const char *tag_cached = "";
static const char *tag_unmerged = "";
static const char *tag_removed = "";
static const char *tag_other = "";

static int nr_excludes;
static const char **excludes;
static int excludes_alloc;

static void add_exclude(const char *string)
{
	if (nr_excludes == excludes_alloc) {
		excludes_alloc = alloc_nr(excludes_alloc);
		excludes = realloc(excludes, excludes_alloc*sizeof(char *));
	}
	excludes[nr_excludes++] = string;
}

static void add_excludes_from_file(const char *fname)
{
	int fd, i;
	long size;
	char *buf, *entry;

	fd = open(fname, O_RDONLY);
	if (fd < 0)
		goto err;
	size = lseek(fd, 0, SEEK_END);
	if (size < 0)
		goto err;
	lseek(fd, 0, SEEK_SET);
	if (size == 0) {
		close(fd);
		return;
	}
	buf = xmalloc(size);
	if (read(fd, buf, size) != size)
		goto err;
	close(fd);

	entry = buf;
	for (i = 0; i < size; i++) {
		if (buf[i] == '\n') {
			if (entry != buf + i) {
				buf[i] = 0;
				add_exclude(entry);
			}
			entry = buf + i + 1;
		}
	}
	return;

err:	perror(fname);
	exit(1);
}

static int excluded(const char *pathname)
{
	int i;
	if (nr_excludes) {
		const char *basename = strrchr(pathname, '/');
		basename = (basename) ? basename+1 : pathname;
		for (i = 0; i < nr_excludes; i++)
			if (fnmatch(excludes[i], basename, 0) == 0)
				return 1;
	}
	return 0;
}

static const char **dir;
static int nr_dir;
static int dir_alloc;

static void add_name(const char *pathname, int len)
{
	char *name;

	if (cache_name_pos(pathname, len) >= 0)
		return;

	if (nr_dir == dir_alloc) {
		dir_alloc = alloc_nr(dir_alloc);
		dir = xrealloc(dir, dir_alloc*sizeof(char *));
	}
	name = xmalloc(len + 1);
	memcpy(name, pathname, len + 1);
	dir[nr_dir++] = name;
}

/*
 * Read a directory tree. We currently ignore anything but
 * directories, regular files and symlinks. That's because git
 * doesn't handle them at all yet. Maybe that will change some
 * day.
 *
 * Also, we currently ignore all names starting with a dot.
 * That likely will not change.
 */
static void read_directory(const char *path, const char *base, int baselen)
{
	DIR *dir = opendir(path);

	if (dir) {
		struct dirent *de;
		char fullname[MAXPATHLEN + 1];
		memcpy(fullname, base, baselen);

		while ((de = readdir(dir)) != NULL) {
			int len;

			if (de->d_name[0] == '.')
				continue;
			if (excluded(de->d_name) != show_ignored)
				continue;
			len = strlen(de->d_name);
			memcpy(fullname + baselen, de->d_name, len+1);

			switch (DTYPE(de)) {
			struct stat st;
			default:
				continue;
			case DT_UNKNOWN:
				if (lstat(fullname, &st))
					continue;
				if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
					break;
				if (!S_ISDIR(st.st_mode))
					continue;
				/* fallthrough */
			case DT_DIR:
				memcpy(fullname + baselen + len, "/", 2);
				read_directory(fullname, fullname,
					       baselen + len + 1);
				continue;
			case DT_REG:
			case DT_LNK:
				break;
			}
			add_name(fullname, baselen + len);
		}
		closedir(dir);
	}
}

static int cmp_name(const void *p1, const void *p2)
{
	const char *n1 = *(const char **)p1;
	const char *n2 = *(const char **)p2;
	int l1 = strlen(n1), l2 = strlen(n2);

	return cache_name_compare(n1, l1, n2, l2);
}

static void show_files(void)
{
	int i;

	/* For cached/deleted files we don't need to even do the readdir */
	if (show_others) {
		read_directory(".", "", 0);
		qsort(dir, nr_dir, sizeof(char *), cmp_name);
		for (i = 0; i < nr_dir; i++)
			printf("%s%s%c", tag_other, dir[i], line_terminator);
	}
	if (show_cached | show_stage) {
		for (i = 0; i < active_nr; i++) {
			struct cache_entry *ce = active_cache[i];
			if (excluded(ce->name) != show_ignored)
				continue;
			if (show_unmerged && !ce_stage(ce))
				continue;
			if (!show_stage)
				printf("%s%s%c",
				       ce_stage(ce) ? tag_unmerged :
				       tag_cached,
				       ce->name, line_terminator);
			else
				printf("%s%06o %s %d %s%c",
				       ce_stage(ce) ? tag_unmerged :
				       tag_cached,
				       ntohl(ce->ce_mode),
				       sha1_to_hex(ce->sha1),
				       ce_stage(ce),
				       ce->name, line_terminator); 
		}
	}
	if (show_deleted) {
		for (i = 0; i < active_nr; i++) {
			struct cache_entry *ce = active_cache[i];
			struct stat st;
			if (excluded(ce->name) != show_ignored)
				continue;
			if (!lstat(ce->name, &st))
				continue;
			printf("%s%s%c", tag_removed, ce->name,
			       line_terminator);
		}
	}
}

static const char *ls_files_usage =
	"ls-files [-z] [-t] (--[cached|deleted|others|stage|unmerged])* "
	"[ --ignored [--exclude=<pattern>] [--exclude-from=<file>) ]";

int main(int argc, char **argv)
{
	int i;

	for (i = 1; i < argc; i++) {
		char *arg = argv[i];

		if (!strcmp(arg, "-z")) {
			line_terminator = 0;
		} else if (!strcmp(arg, "-t")) {
			tag_cached = "H ";
			tag_unmerged = "M ";
			tag_removed = "R ";
			tag_other = "? ";
		} else if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
			show_cached = 1;
		} else if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
			show_deleted = 1;
		} else if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
			show_others = 1;
		} else if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
			show_ignored = 1;
		} else if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
			show_stage = 1;
		} else if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
			/* There's no point in showing unmerged unless
			 * you also show the stage information.
			 */
			show_stage = 1;
			show_unmerged = 1;
		} else if (!strcmp(arg, "-x") && i+1 < argc) {
			add_exclude(argv[++i]);
		} else if (!strncmp(arg, "--exclude=", 10)) {
			add_exclude(arg+10);
		} else if (!strcmp(arg, "-X") && i+1 < argc) {
			add_excludes_from_file(argv[++i]);
		} else if (!strncmp(arg, "--exclude-from=", 15)) {
			add_excludes_from_file(arg+15);
		} else
			usage(ls_files_usage);
	}

	if (show_ignored && !nr_excludes) {
		fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
			argv[0]);
		exit(1);
	}

	/* With no flags, we default to showing the cached files */
	if (!(show_stage | show_deleted | show_others | show_unmerged))
		show_cached = 1;

	read_cache();
	show_files();
	return 0;
}
Commit	Line	Data
8695c8bf LT	1	/*
	2	* This merges the file listing in the directory cache index
	3	* with the actual working directory list, and shows different
	4	* combinations of the two.
	5	*
	6	* Copyright (C) Linus Torvalds, 2005
	7	*/
	8	#include <dirent.h>
9ff768e9	9	#include <fnmatch.h>
8695c8bf LT	10
	11	#include "cache.h"
	12
	13	static int show_deleted = 0;
	14	static int show_cached = 0;
	15	static int show_others = 0;
	16	static int show_ignored = 0;
aee46198	17	static int show_stage = 0;
eec8c633	18	static int show_unmerged = 0;
b83c8345	19	static int line_terminator = '\n';
8695c8bf	20
20d37ef6 PB	21	static const char *tag_cached = "";
	22	static const char *tag_unmerged = "";
	23	static const char *tag_removed = "";
	24	static const char *tag_other = "";
	25
9ff768e9 NP	26	static int nr_excludes;
	27	static const char **excludes;
	28	static int excludes_alloc;
	29
	30	static void add_exclude(const char *string)
	31	{
	32	if (nr_excludes == excludes_alloc) {
	33	excludes_alloc = alloc_nr(excludes_alloc);
	34	excludes = realloc(excludes, excludes_allocsizeof(char ));
	35	}
	36	excludes[nr_excludes++] = string;
	37	}
	38
	39	static void add_excludes_from_file(const char *fname)
	40	{
	41	int fd, i;
	42	long size;
	43	char buf, entry;
	44
	45	fd = open(fname, O_RDONLY);
	46	if (fd < 0)
	47	goto err;
	48	size = lseek(fd, 0, SEEK_END);
	49	if (size < 0)
	50	goto err;
	51	lseek(fd, 0, SEEK_SET);
	52	if (size == 0) {
	53	close(fd);
	54	return;
	55	}
	56	buf = xmalloc(size);
	57	if (read(fd, buf, size) != size)
	58	goto err;
	59	close(fd);
	60
	61	entry = buf;
	62	for (i = 0; i < size; i++) {
	63	if (buf[i] == '\n') {
	64	if (entry != buf + i) {
	65	buf[i] = 0;
	66	add_exclude(entry);
	67	}
	68	entry = buf + i + 1;
	69	}
	70	}
	71	return;
	72
	73	err: perror(fname);
	74	exit(1);
	75	}
	76
	77	static int excluded(const char *pathname)
	78	{
	79	int i;
	80	if (nr_excludes) {
	81	const char *basename = strrchr(pathname, '/');
	82	basename = (basename) ? basename+1 : pathname;
	83	for (i = 0; i < nr_excludes; i++)
	84	if (fnmatch(excludes[i], basename, 0) == 0)
	85	return 1;
	86	}
	87	return 0;
	88	}
	89
8695c8bf LT	90	static const char **dir;
	91	static int nr_dir;
	92	static int dir_alloc;
	93
	94	static void add_name(const char *pathname, int len)
	95	{
	96	char *name;
	97
	98	if (cache_name_pos(pathname, len) >= 0)
	99	return;
	100
	101	if (nr_dir == dir_alloc) {
	102	dir_alloc = alloc_nr(dir_alloc);
812666c8	103	dir = xrealloc(dir, dir_allocsizeof(char ));
8695c8bf	104	}
812666c8	105	name = xmalloc(len + 1);
8695c8bf LT	106	memcpy(name, pathname, len + 1);
	107	dir[nr_dir++] = name;
	108	}
	109
	110	/*
	111	* Read a directory tree. We currently ignore anything but
a15c1c60 JH	112	* directories, regular files and symlinks. That's because git
	113	* doesn't handle them at all yet. Maybe that will change some
	114	* day.
8695c8bf LT	115	*
8695c8bf LT	116	* Also, we currently ignore all names starting with a dot.
aebb2679	117	* That likely will not change.
8695c8bf LT	118	*/
	119	static void read_directory(const char path, const char base, int baselen)
	120	{
	121	DIR *dir = opendir(path);
	122
	123	if (dir) {
	124	struct dirent *de;
	125	char fullname[MAXPATHLEN + 1];
	126	memcpy(fullname, base, baselen);
	127
	128	while ((de = readdir(dir)) != NULL) {
	129	int len;
	130
	131	if (de->d_name[0] == '.')
	132	continue;
9ff768e9 NP	133	if (excluded(de->d_name) != show_ignored)
9ff768e9 NP	134	continue;
8695c8bf LT	135	len = strlen(de->d_name);
	136	memcpy(fullname + baselen, de->d_name, len+1);
	137
b6829693	138	switch (DTYPE(de)) {
8695c8bf LT	139	struct stat st;
	140	default:
	141	continue;
	142	case DT_UNKNOWN:
	143	if (lstat(fullname, &st))
	144	continue;
a15c1c60	145	if (S_ISREG(st.st_mode) \|\| S_ISLNK(st.st_mode))
8695c8bf LT	146	break;
	147	if (!S_ISDIR(st.st_mode))
	148	continue;
	149	/* fallthrough */
	150	case DT_DIR:
	151	memcpy(fullname + baselen + len, "/", 2);
20d37ef6 PB	152	read_directory(fullname, fullname,
20d37ef6 PB	153	baselen + len + 1);
8695c8bf LT	154	continue;
8695c8bf LT	155	case DT_REG:
a15c1c60	156	case DT_LNK:
8695c8bf LT	157	break;
	158	}
	159	add_name(fullname, baselen + len);
	160	}
	161	closedir(dir);
	162	}
	163	}
	164
	165	static int cmp_name(const void p1, const void p2)
	166	{
	167	const char n1 = (const char **)p1;
	168	const char n2 = (const char **)p2;
	169	int l1 = strlen(n1), l2 = strlen(n2);
	170
	171	return cache_name_compare(n1, l1, n2, l2);
	172	}
	173
	174	static void show_files(void)
	175	{
	176	int i;
	177
	178	/* For cached/deleted files we don't need to even do the readdir */
9ff768e9	179	if (show_others) {
8695c8bf LT	180	read_directory(".", "", 0);
8695c8bf LT	181	qsort(dir, nr_dir, sizeof(char *), cmp_name);
8695c8bf	182	for (i = 0; i < nr_dir; i++)
20d37ef6	183	printf("%s%s%c", tag_other, dir[i], line_terminator);
8695c8bf	184	}
aee46198	185	if (show_cached \| show_stage) {
8695c8bf LT	186	for (i = 0; i < active_nr; i++) {
8695c8bf LT	187	struct cache_entry *ce = active_cache[i];
9ff768e9 NP	188	if (excluded(ce->name) != show_ignored)
9ff768e9 NP	189	continue;
eec8c633 LT	190	if (show_unmerged && !ce_stage(ce))
eec8c633 LT	191	continue;
aee46198	192	if (!show_stage)
20d37ef6 PB	193	printf("%s%s%c",
	194	ce_stage(ce) ? tag_unmerged :
	195	tag_cached,
	196	ce->name, line_terminator);
aee46198	197	else
20d37ef6 PB	198	printf("%s%06o %s %d %s%c",
	199	ce_stage(ce) ? tag_unmerged :
	200	tag_cached,
aee46198 JH	201	ntohl(ce->ce_mode),
	202	sha1_to_hex(ce->sha1),
	203	ce_stage(ce),
aee46198	204	ce->name, line_terminator);
8695c8bf LT	205	}
	206	}
	207	if (show_deleted) {
	208	for (i = 0; i < active_nr; i++) {
	209	struct cache_entry *ce = active_cache[i];
	210	struct stat st;
9ff768e9 NP	211	if (excluded(ce->name) != show_ignored)
9ff768e9 NP	212	continue;
8ae0a8c5	213	if (!lstat(ce->name, &st))
8695c8bf	214	continue;
20d37ef6 PB	215	printf("%s%s%c", tag_removed, ce->name,
20d37ef6 PB	216	line_terminator);
8695c8bf LT	217	}
8695c8bf LT	218	}
8695c8bf LT	219	}
8695c8bf LT	220
17710391	221	static const char *ls_files_usage =
20d37ef6	222	"ls-files [-z] [-t] (--[cached\|deleted\|others\|stage\|unmerged])* "
cf9a113d NP	223	"[ --ignored [--exclude=<pattern>] [--exclude-from=<file>) ]";
cf9a113d NP	224
8695c8bf LT	225	int main(int argc, char **argv)
	226	{
	227	int i;
	228
	229	for (i = 1; i < argc; i++) {
	230	char *arg = argv[i];
	231
b83c8345 JH	232	if (!strcmp(arg, "-z")) {
b83c8345 JH	233	line_terminator = 0;
20d37ef6 PB	234	} else if (!strcmp(arg, "-t")) {
	235	tag_cached = "H ";
	236	tag_unmerged = "M ";
	237	tag_removed = "R ";
	238	tag_other = "? ";
cf9a113d	239	} else if (!strcmp(arg, "-c") \|\| !strcmp(arg, "--cached")) {
8695c8bf	240	show_cached = 1;
cf9a113d	241	} else if (!strcmp(arg, "-d") \|\| !strcmp(arg, "--deleted")) {
8695c8bf	242	show_deleted = 1;
cf9a113d	243	} else if (!strcmp(arg, "-o") \|\| !strcmp(arg, "--others")) {
8695c8bf	244	show_others = 1;
cf9a113d	245	} else if (!strcmp(arg, "-i") \|\| !strcmp(arg, "--ignored")) {
8695c8bf	246	show_ignored = 1;
cf9a113d	247	} else if (!strcmp(arg, "-s") \|\| !strcmp(arg, "--stage")) {
aee46198	248	show_stage = 1;
cf9a113d	249	} else if (!strcmp(arg, "-u") \|\| !strcmp(arg, "--unmerged")) {
20d37ef6 PB	250	/* There's no point in showing unmerged unless
	251	* you also show the stage information.
	252	*/
eec8c633 LT	253	show_stage = 1;
eec8c633 LT	254	show_unmerged = 1;
cf9a113d	255	} else if (!strcmp(arg, "-x") && i+1 < argc) {
9ff768e9	256	add_exclude(argv[++i]);
cf9a113d	257	} else if (!strncmp(arg, "--exclude=", 10)) {
9ff768e9	258	add_exclude(arg+10);
cf9a113d	259	} else if (!strcmp(arg, "-X") && i+1 < argc) {
9ff768e9	260	add_excludes_from_file(argv[++i]);
cf9a113d	261	} else if (!strncmp(arg, "--exclude-from=", 15)) {
9ff768e9	262	add_excludes_from_file(arg+15);
cf9a113d	263	} else
17710391	264	usage(ls_files_usage);
9ff768e9 NP	265	}
	266
	267	if (show_ignored && !nr_excludes) {
20d37ef6 PB	268	fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
20d37ef6 PB	269	argv[0]);
9ff768e9	270	exit(1);
8695c8bf LT	271	}
	272
	273	/* With no flags, we default to showing the cached files */
9ff768e9	274	if (!(show_stage \| show_deleted \| show_others \| show_unmerged))
8695c8bf LT	275	show_cached = 1;
	276
	277	read_cache();
	278	show_files();
	279	return 0;
	280	}