[thirdparty/git.git] / show-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 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 and regular files. 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 (de->d_type) {
			struct stat st;
			default:
				continue;
			case DT_UNKNOWN:
				if (lstat(fullname, &st))
					continue;
				if (S_ISREG(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:
				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%c", 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%c", ce->name, line_terminator);
			else
				printf(/* "%06o %s %d %10d %s%c", */
				       "%06o %s %d %s%c",
				       ntohl(ce->ce_mode),
				       sha1_to_hex(ce->sha1),
				       ce_stage(ce),
				       /* ntohl(ce->ce_size), */
				       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 (!stat(ce->name, &st))
				continue;
			printf("%s%c", ce->name, line_terminator);
		}
	}
}

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;
			continue;
		}

		if (!strcmp(arg, "--cached")) {
			show_cached = 1;
			continue;
		}
		if (!strcmp(arg, "--deleted")) {
			show_deleted = 1;
			continue;
		}
		if (!strcmp(arg, "--others")) {
			show_others = 1;
			continue;
		}
		if (!strcmp(arg, "--ignored")) {
			show_ignored = 1;
			continue;
		}
		if (!strcmp(arg, "--stage")) {
			show_stage = 1;
			continue;
		}
		if (!strcmp(arg, "--unmerged")) {
			// There's no point in showing unmerged unless you also show the stage information
			show_stage = 1;
			show_unmerged = 1;
			continue;
		}

		if (!strcmp(arg, "-x") && i+1 < argc) {
			add_exclude(argv[++i]);
			continue;
		}
		if (!strncmp(arg, "--exclude=", 10)) {
			add_exclude(arg+10);
			continue;
		}
		if (!strcmp(arg, "-X") && i+1 < argc) {
			add_excludes_from_file(argv[++i]);
			continue;
		}
		if (!strncmp(arg, "--exclude-from=", 15)) {
			add_excludes_from_file(arg+15);
			continue;
		}

		usage("show-files [-z] (--[cached|deleted|others|stage])* "
		      "[ --ignored [--exclude=<pattern>] [--exclude-from=<file>) ]");
	}

	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
9ff768e9 NP	21	static int nr_excludes;
	22	static const char **excludes;
	23	static int excludes_alloc;
	24
	25	static void add_exclude(const char *string)
	26	{
	27	if (nr_excludes == excludes_alloc) {
	28	excludes_alloc = alloc_nr(excludes_alloc);
	29	excludes = realloc(excludes, excludes_allocsizeof(char ));
	30	}
	31	excludes[nr_excludes++] = string;
	32	}
	33
	34	static void add_excludes_from_file(const char *fname)
	35	{
	36	int fd, i;
	37	long size;
	38	char buf, entry;
	39
	40	fd = open(fname, O_RDONLY);
	41	if (fd < 0)
	42	goto err;
	43	size = lseek(fd, 0, SEEK_END);
	44	if (size < 0)
	45	goto err;
	46	lseek(fd, 0, SEEK_SET);
	47	if (size == 0) {
	48	close(fd);
	49	return;
	50	}
	51	buf = xmalloc(size);
	52	if (read(fd, buf, size) != size)
	53	goto err;
	54	close(fd);
	55
	56	entry = buf;
	57	for (i = 0; i < size; i++) {
	58	if (buf[i] == '\n') {
	59	if (entry != buf + i) {
	60	buf[i] = 0;
	61	add_exclude(entry);
	62	}
	63	entry = buf + i + 1;
	64	}
	65	}
	66	return;
	67
	68	err: perror(fname);
	69	exit(1);
	70	}
	71
	72	static int excluded(const char *pathname)
	73	{
	74	int i;
	75	if (nr_excludes) {
	76	const char *basename = strrchr(pathname, '/');
	77	basename = (basename) ? basename+1 : pathname;
	78	for (i = 0; i < nr_excludes; i++)
	79	if (fnmatch(excludes[i], basename, 0) == 0)
	80	return 1;
	81	}
	82	return 0;
	83	}
	84
8695c8bf LT	85	static const char **dir;
	86	static int nr_dir;
	87	static int dir_alloc;
	88
	89	static void add_name(const char *pathname, int len)
	90	{
	91	char *name;
	92
	93	if (cache_name_pos(pathname, len) >= 0)
	94	return;
	95
	96	if (nr_dir == dir_alloc) {
	97	dir_alloc = alloc_nr(dir_alloc);
812666c8	98	dir = xrealloc(dir, dir_allocsizeof(char ));
8695c8bf	99	}
812666c8	100	name = xmalloc(len + 1);
8695c8bf LT	101	memcpy(name, pathname, len + 1);
	102	dir[nr_dir++] = name;
	103	}
	104
	105	/*
	106	* Read a directory tree. We currently ignore anything but
	107	* directories and regular files. That's because git doesn't
	108	* handle them at all yet. Maybe that will change some day.
	109	*
	110	* Also, we currently ignore all names starting with a dot.
aebb2679	111	* That likely will not change.
8695c8bf LT	112	*/
	113	static void read_directory(const char path, const char base, int baselen)
	114	{
	115	DIR *dir = opendir(path);
	116
	117	if (dir) {
	118	struct dirent *de;
	119	char fullname[MAXPATHLEN + 1];
	120	memcpy(fullname, base, baselen);
	121
	122	while ((de = readdir(dir)) != NULL) {
	123	int len;
	124
	125	if (de->d_name[0] == '.')
	126	continue;
9ff768e9 NP	127	if (excluded(de->d_name) != show_ignored)
9ff768e9 NP	128	continue;
8695c8bf LT	129	len = strlen(de->d_name);
	130	memcpy(fullname + baselen, de->d_name, len+1);
	131
	132	switch (de->d_type) {
	133	struct stat st;
	134	default:
	135	continue;
	136	case DT_UNKNOWN:
	137	if (lstat(fullname, &st))
	138	continue;
	139	if (S_ISREG(st.st_mode))
	140	break;
	141	if (!S_ISDIR(st.st_mode))
	142	continue;
	143	/* fallthrough */
	144	case DT_DIR:
	145	memcpy(fullname + baselen + len, "/", 2);
	146	read_directory(fullname, fullname, baselen + len + 1);
	147	continue;
	148	case DT_REG:
	149	break;
	150	}
	151	add_name(fullname, baselen + len);
	152	}
	153	closedir(dir);
	154	}
	155	}
	156
	157	static int cmp_name(const void p1, const void p2)
	158	{
	159	const char n1 = (const char **)p1;
	160	const char n2 = (const char **)p2;
	161	int l1 = strlen(n1), l2 = strlen(n2);
	162
	163	return cache_name_compare(n1, l1, n2, l2);
	164	}
	165
	166	static void show_files(void)
	167	{
	168	int i;
	169
	170	/* For cached/deleted files we don't need to even do the readdir */
9ff768e9	171	if (show_others) {
8695c8bf LT	172	read_directory(".", "", 0);
8695c8bf LT	173	qsort(dir, nr_dir, sizeof(char *), cmp_name);
8695c8bf	174	for (i = 0; i < nr_dir; i++)
b83c8345	175	printf("%s%c", dir[i], line_terminator);
8695c8bf	176	}
aee46198	177	if (show_cached \| show_stage) {
8695c8bf LT	178	for (i = 0; i < active_nr; i++) {
8695c8bf LT	179	struct cache_entry *ce = active_cache[i];
9ff768e9 NP	180	if (excluded(ce->name) != show_ignored)
9ff768e9 NP	181	continue;
eec8c633 LT	182	if (show_unmerged && !ce_stage(ce))
eec8c633 LT	183	continue;
aee46198 JH	184	if (!show_stage)
	185	printf("%s%c", ce->name, line_terminator);
	186	else
	187	printf(/* "%06o %s %d %10d %s%c", */
	188	"%06o %s %d %s%c",
	189	ntohl(ce->ce_mode),
	190	sha1_to_hex(ce->sha1),
	191	ce_stage(ce),
	192	/* ntohl(ce->ce_size), */
	193	ce->name, line_terminator);
8695c8bf LT	194	}
	195	}
	196	if (show_deleted) {
	197	for (i = 0; i < active_nr; i++) {
	198	struct cache_entry *ce = active_cache[i];
	199	struct stat st;
9ff768e9 NP	200	if (excluded(ce->name) != show_ignored)
9ff768e9 NP	201	continue;
8695c8bf LT	202	if (!stat(ce->name, &st))
8695c8bf LT	203	continue;
b83c8345	204	printf("%s%c", ce->name, line_terminator);
8695c8bf LT	205	}
8695c8bf LT	206	}
8695c8bf LT	207	}
	208
	209	int main(int argc, char **argv)
	210	{
	211	int i;
	212
	213	for (i = 1; i < argc; i++) {
	214	char *arg = argv[i];
	215
b83c8345 JH	216	if (!strcmp(arg, "-z")) {
	217	line_terminator = 0;
	218	continue;
	219	}
	220
8695c8bf LT	221	if (!strcmp(arg, "--cached")) {
	222	show_cached = 1;
	223	continue;
	224	}
	225	if (!strcmp(arg, "--deleted")) {
	226	show_deleted = 1;
	227	continue;
	228	}
	229	if (!strcmp(arg, "--others")) {
	230	show_others = 1;
	231	continue;
	232	}
	233	if (!strcmp(arg, "--ignored")) {
	234	show_ignored = 1;
	235	continue;
	236	}
aee46198 JH	237	if (!strcmp(arg, "--stage")) {
	238	show_stage = 1;
	239	continue;
	240	}
eec8c633 LT	241	if (!strcmp(arg, "--unmerged")) {
	242	// There's no point in showing unmerged unless you also show the stage information
	243	show_stage = 1;
	244	show_unmerged = 1;
	245	continue;
	246	}
8695c8bf	247
9ff768e9 NP	248	if (!strcmp(arg, "-x") && i+1 < argc) {
	249	add_exclude(argv[++i]);
	250	continue;
	251	}
	252	if (!strncmp(arg, "--exclude=", 10)) {
	253	add_exclude(arg+10);
	254	continue;
	255	}
	256	if (!strcmp(arg, "-X") && i+1 < argc) {
	257	add_excludes_from_file(argv[++i]);
	258	continue;
	259	}
	260	if (!strncmp(arg, "--exclude-from=", 15)) {
	261	add_excludes_from_file(arg+15);
	262	continue;
	263	}
	264
	265	usage("show-files [-z] (--[cached\|deleted\|others\|stage])* "
	266	"[ --ignored [--exclude=<pattern>] [--exclude-from=<file>) ]");
	267	}
	268
	269	if (show_ignored && !nr_excludes) {
	270	fprintf(stderr, "%s: --ignored needs some exclude pattern\n", argv[0]);
	271	exit(1);
8695c8bf LT	272	}
	273
	274	/* With no flags, we default to showing the cached files */
9ff768e9	275	if (!(show_stage \| show_deleted \| show_others \| show_unmerged))
8695c8bf LT	276	show_cached = 1;
	277
	278	read_cache();
	279	show_files();
	280	return 0;
	281	}