[thirdparty/git.git] / wt-status.c

#include "cache.h"
#include "wt-status.h"
#include "color.h"
#include "object.h"
#include "dir.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "diffcore.h"

int wt_status_use_color = 0;
static char wt_status_colors[][COLOR_MAXLEN] = {
	"",         /* WT_STATUS_HEADER: normal */
	"\033[32m", /* WT_STATUS_UPDATED: green */
	"\033[31m", /* WT_STATUS_CHANGED: red */
	"\033[31m", /* WT_STATUS_UNTRACKED: red */
};
static const char* use_add_msg = "use \"git add <file>...\" to incrementally add content to commit";

static int parse_status_slot(const char *var, int offset)
{
	if (!strcasecmp(var+offset, "header"))
		return WT_STATUS_HEADER;
	if (!strcasecmp(var+offset, "updated")
		|| !strcasecmp(var+offset, "added"))
		return WT_STATUS_UPDATED;
	if (!strcasecmp(var+offset, "changed"))
		return WT_STATUS_CHANGED;
	if (!strcasecmp(var+offset, "untracked"))
		return WT_STATUS_UNTRACKED;
	die("bad config variable '%s'", var);
}

static const char* color(int slot)
{
	return wt_status_use_color ? wt_status_colors[slot] : "";
}

void wt_status_prepare(struct wt_status *s)
{
	unsigned char sha1[20];
	const char *head;

	head = resolve_ref("HEAD", sha1, 0, NULL);
	s->branch = head ? xstrdup(head) : NULL;

	s->reference = "HEAD";
	s->amend = 0;
	s->verbose = 0;
	s->commitable = 0;
	s->untracked = 0;

	s->workdir_clean = 1;
}

static void wt_status_print_cached_header(const char *reference)
{
	const char *c = color(WT_STATUS_HEADER);
	color_printf_ln(c, "# Changes to be committed:");
	if (reference) {
		color_printf_ln(c, "#   (use \"git reset %s <file>...\" to unstage)", reference);
	} else {
		color_printf_ln(c, "#   (use \"git rm --cached <file>...\" to unstage)");
	}
	color_printf_ln(c, "#");
}

static void wt_status_print_header(const char *main, const char *sub)
{
	const char *c = color(WT_STATUS_HEADER);
	color_printf_ln(c, "# %s:", main);
	color_printf_ln(c, "#   (%s)", sub);
	color_printf_ln(c, "#");
}

static void wt_status_print_trailer(void)
{
	color_printf_ln(color(WT_STATUS_HEADER), "#");
}

static const char *quote_crlf(const char *in, char *buf, size_t sz)
{
	const char *scan;
	char *out;
	const char *ret = in;

	for (scan = in, out = buf; *scan; scan++) {
		int ch = *scan;
		int quoted;

		switch (ch) {
		case '\n':
			quoted = 'n';
			break;
		case '\r':
			quoted = 'r';
			break;
		default:
			*out++ = ch;
			continue;
		}
		*out++ = '\\';
		*out++ = quoted;
		ret = buf;
	}
	*out = '\0';
	return ret;
}

static void wt_status_print_filepair(int t, struct diff_filepair *p)
{
	const char *c = color(t);
	const char *one, *two;
	char onebuf[PATH_MAX], twobuf[PATH_MAX];

	one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
	two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));

	color_printf(color(WT_STATUS_HEADER), "#\t");
	switch (p->status) {
	case DIFF_STATUS_ADDED:
		color_printf(c, "new file:   %s", one);
		break;
	case DIFF_STATUS_COPIED:
		color_printf(c, "copied:     %s -> %s", one, two);
		break;
	case DIFF_STATUS_DELETED:
		color_printf(c, "deleted:    %s", one);
		break;
	case DIFF_STATUS_MODIFIED:
		color_printf(c, "modified:   %s", one);
		break;
	case DIFF_STATUS_RENAMED:
		color_printf(c, "renamed:    %s -> %s", one, two);
		break;
	case DIFF_STATUS_TYPE_CHANGED:
		color_printf(c, "typechange: %s", one);
		break;
	case DIFF_STATUS_UNKNOWN:
		color_printf(c, "unknown:    %s", one);
		break;
	case DIFF_STATUS_UNMERGED:
		color_printf(c, "unmerged:   %s", one);
		break;
	default:
		die("bug: unhandled diff status %c", p->status);
	}
	printf("\n");
}

static void wt_status_print_updated_cb(struct diff_queue_struct *q,
		struct diff_options *options,
		void *data)
{
	struct wt_status *s = data;
	int shown_header = 0;
	int i;
	for (i = 0; i < q->nr; i++) {
		if (q->queue[i]->status == 'U')
			continue;
		if (!shown_header) {
			wt_status_print_cached_header(s->reference);
			s->commitable = 1;
			shown_header = 1;
		}
		wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
	}
	if (shown_header)
		wt_status_print_trailer();
}

static void wt_status_print_changed_cb(struct diff_queue_struct *q,
                        struct diff_options *options,
                        void *data)
{
	struct wt_status *s = data;
	int i;
	if (q->nr) {
		s->workdir_clean = 0;
		wt_status_print_header("Changed but not added", use_add_msg);
	}
	for (i = 0; i < q->nr; i++)
		wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
	if (q->nr)
		wt_status_print_trailer();
}

void wt_status_print_initial(struct wt_status *s)
{
	int i;
	char buf[PATH_MAX];

	read_cache();
	if (active_nr) {
		s->commitable = 1;
		wt_status_print_cached_header(NULL);
	}
	for (i = 0; i < active_nr; i++) {
		color_printf(color(WT_STATUS_HEADER), "#\t");
		color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
				quote_crlf(active_cache[i]->name,
					   buf, sizeof(buf)));
	}
	if (active_nr)
		wt_status_print_trailer();
}

static void wt_status_print_updated(struct wt_status *s)
{
	struct rev_info rev;
	init_revisions(&rev, NULL);
	setup_revisions(0, NULL, &rev, s->reference);
	rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
	rev.diffopt.format_callback = wt_status_print_updated_cb;
	rev.diffopt.format_callback_data = s;
	rev.diffopt.detect_rename = 1;
	run_diff_index(&rev, 1);
}

static void wt_status_print_changed(struct wt_status *s)
{
	struct rev_info rev;
	init_revisions(&rev, "");
	setup_revisions(0, NULL, &rev, NULL);
	rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
	rev.diffopt.format_callback = wt_status_print_changed_cb;
	rev.diffopt.format_callback_data = s;
	run_diff_files(&rev, 0);
}

static void wt_status_print_untracked(struct wt_status *s)
{
	struct dir_struct dir;
	const char *x;
	int i;
	int shown_header = 0;

	memset(&dir, 0, sizeof(dir));

	dir.exclude_per_dir = ".gitignore";
	if (!s->untracked) {
		dir.show_other_directories = 1;
		dir.hide_empty_directories = 1;
	}
	x = git_path("info/exclude");
	if (file_exists(x))
		add_excludes_from_file(&dir, x);

	read_directory(&dir, ".", "", 0);
	for(i = 0; i < dir.nr; i++) {
		/* check for matching entry, which is unmerged; lifted from
		 * builtin-ls-files:show_other_files */
		struct dir_entry *ent = dir.entries[i];
		int pos = cache_name_pos(ent->name, ent->len);
		struct cache_entry *ce;
		if (0 <= pos)
			die("bug in wt_status_print_untracked");
		pos = -pos - 1;
		if (pos < active_nr) {
			ce = active_cache[pos];
			if (ce_namelen(ce) == ent->len &&
			    !memcmp(ce->name, ent->name, ent->len))
				continue;
		}
		if (!shown_header) {
			s->workdir_clean = 0;
			wt_status_print_header("Untracked files", use_add_msg);
			shown_header = 1;
		}
		color_printf(color(WT_STATUS_HEADER), "#\t");
		color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
				ent->len, ent->name);
	}
}

static void wt_status_print_verbose(struct wt_status *s)
{
	struct rev_info rev;
	init_revisions(&rev, NULL);
	setup_revisions(0, NULL, &rev, s->reference);
	rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
	rev.diffopt.detect_rename = 1;
	run_diff_index(&rev, 1);
}

void wt_status_print(struct wt_status *s)
{
	unsigned char sha1[20];
	s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;

	if (s->branch)
		color_printf_ln(color(WT_STATUS_HEADER),
			"# On branch %s", s->branch);

	if (s->is_initial) {
		color_printf_ln(color(WT_STATUS_HEADER), "#");
		color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
		color_printf_ln(color(WT_STATUS_HEADER), "#");
		wt_status_print_initial(s);
	}
	else {
		wt_status_print_updated(s);
		discard_cache();
	}

	wt_status_print_changed(s);
	wt_status_print_untracked(s);

	if (s->verbose && !s->is_initial)
		wt_status_print_verbose(s);
	if (!s->commitable) {
		if (s->amend)
			printf("# No changes\n");
		else if (s->workdir_clean)
			printf(s->is_initial
			       ? "nothing to commit\n"
			       : "nothing to commit (working directory matches HEAD)\n");
		else
			printf("no changes added to commit (use \"git add\" and/or \"git commit [-a|-i|-o]\")\n");
	}
}

int git_status_config(const char *k, const char *v)
{
	if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
		wt_status_use_color = git_config_colorbool(k, v);
		return 0;
	}
	if (!strncmp(k, "status.color.", 13) || !strncmp(k, "color.status", 13)) {
		int slot = parse_status_slot(k, 13);
		color_parse(v, k, wt_status_colors[slot]);
	}
	return git_default_config(k, v);
}
Commit	Line	Data
85023577	1	#include "cache.h"
c91f0d92 JK	2	#include "wt-status.h"
c91f0d92 JK	3	#include "color.h"
c91f0d92 JK	4	#include "object.h"
	5	#include "dir.h"
	6	#include "commit.h"
	7	#include "diff.h"
	8	#include "revision.h"
	9	#include "diffcore.h"
	10
	11	int wt_status_use_color = 0;
	12	static char wt_status_colors[][COLOR_MAXLEN] = {
	13	"", /* WT_STATUS_HEADER: normal */
	14	"\033[32m", /* WT_STATUS_UPDATED: green */
	15	"\033[31m", /* WT_STATUS_CHANGED: red */
	16	"\033[31m", /* WT_STATUS_UNTRACKED: red */
	17	};
e54eef9e	18	static const char* use_add_msg = "use \"git add <file>...\" to incrementally add content to commit";
c91f0d92 JK	19
	20	static int parse_status_slot(const char *var, int offset)
	21	{
	22	if (!strcasecmp(var+offset, "header"))
	23	return WT_STATUS_HEADER;
82dca848 SP	24	if (!strcasecmp(var+offset, "updated")
82dca848 SP	25	\|\| !strcasecmp(var+offset, "added"))
c91f0d92 JK	26	return WT_STATUS_UPDATED;
	27	if (!strcasecmp(var+offset, "changed"))
	28	return WT_STATUS_CHANGED;
	29	if (!strcasecmp(var+offset, "untracked"))
	30	return WT_STATUS_UNTRACKED;
	31	die("bad config variable '%s'", var);
	32	}
	33
	34	static const char* color(int slot)
	35	{
	36	return wt_status_use_color ? wt_status_colors[slot] : "";
	37	}
	38
	39	void wt_status_prepare(struct wt_status *s)
	40	{
	41	unsigned char sha1[20];
	42	const char *head;
	43
8da19775	44	head = resolve_ref("HEAD", sha1, 0, NULL);
f62363fb	45	s->branch = head ? xstrdup(head) : NULL;
c91f0d92 JK	46
	47	s->reference = "HEAD";
	48	s->amend = 0;
	49	s->verbose = 0;
	50	s->commitable = 0;
2074cb0a	51	s->untracked = 0;
6e458bf6 JR	52
6e458bf6 JR	53	s->workdir_clean = 1;
c91f0d92 JK	54	}
c91f0d92 JK	55
3c1eb9cb JR	56	static void wt_status_print_cached_header(const char *reference)
	57	{
	58	const char *c = color(WT_STATUS_HEADER);
3368d11f	59	color_printf_ln(c, "# Changes to be committed:");
3c1eb9cb	60	if (reference) {
3368d11f	61	color_printf_ln(c, "# (use \"git reset %s <file>...\" to unstage)", reference);
3c1eb9cb JR	62	} else {
	63	color_printf_ln(c, "# (use \"git rm --cached <file>...\" to unstage)");
	64	}
	65	color_printf_ln(c, "#");
	66	}
	67
c91f0d92 JK	68	static void wt_status_print_header(const char main, const char sub)
	69	{
	70	const char *c = color(WT_STATUS_HEADER);
	71	color_printf_ln(c, "# %s:", main);
	72	color_printf_ln(c, "# (%s)", sub);
	73	color_printf_ln(c, "#");
	74	}
	75
	76	static void wt_status_print_trailer(void)
	77	{
	78	color_printf_ln(color(WT_STATUS_HEADER), "#");
	79	}
	80
3a946802 JH	81	static const char quote_crlf(const char in, char *buf, size_t sz)
	82	{
	83	const char *scan;
	84	char *out;
	85	const char *ret = in;
	86
	87	for (scan = in, out = buf; *scan; scan++) {
	88	int ch = *scan;
	89	int quoted;
	90
	91	switch (ch) {
	92	case '\n':
	93	quoted = 'n';
	94	break;
	95	case '\r':
	96	quoted = 'r';
	97	break;
	98	default:
	99	*out++ = ch;
	100	continue;
	101	}
	102	*out++ = '\\';
	103	*out++ = quoted;
	104	ret = buf;
	105	}
	106	*out = '\0';
	107	return ret;
	108	}
	109
c91f0d92 JK	110	static void wt_status_print_filepair(int t, struct diff_filepair *p)
	111	{
	112	const char *c = color(t);
3a946802 JH	113	const char one, two;
	114	char onebuf[PATH_MAX], twobuf[PATH_MAX];
	115
	116	one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
	117	two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
	118
c91f0d92 JK	119	color_printf(color(WT_STATUS_HEADER), "#\t");
	120	switch (p->status) {
	121	case DIFF_STATUS_ADDED:
3a946802 JH	122	color_printf(c, "new file: %s", one);
3a946802 JH	123	break;
c91f0d92	124	case DIFF_STATUS_COPIED:
3a946802	125	color_printf(c, "copied: %s -> %s", one, two);
c91f0d92 JK	126	break;
c91f0d92 JK	127	case DIFF_STATUS_DELETED:
3a946802 JH	128	color_printf(c, "deleted: %s", one);
3a946802 JH	129	break;
c91f0d92	130	case DIFF_STATUS_MODIFIED:
3a946802 JH	131	color_printf(c, "modified: %s", one);
3a946802 JH	132	break;
c91f0d92	133	case DIFF_STATUS_RENAMED:
3a946802	134	color_printf(c, "renamed: %s -> %s", one, two);
c91f0d92 JK	135	break;
c91f0d92 JK	136	case DIFF_STATUS_TYPE_CHANGED:
3a946802 JH	137	color_printf(c, "typechange: %s", one);
3a946802 JH	138	break;
c91f0d92	139	case DIFF_STATUS_UNKNOWN:
3a946802 JH	140	color_printf(c, "unknown: %s", one);
3a946802 JH	141	break;
c91f0d92	142	case DIFF_STATUS_UNMERGED:
3a946802 JH	143	color_printf(c, "unmerged: %s", one);
3a946802 JH	144	break;
c91f0d92 JK	145	default:
	146	die("bug: unhandled diff status %c", p->status);
	147	}
	148	printf("\n");
	149	}
	150
	151	static void wt_status_print_updated_cb(struct diff_queue_struct *q,
	152	struct diff_options *options,
	153	void *data)
	154	{
	155	struct wt_status *s = data;
	156	int shown_header = 0;
	157	int i;
c91f0d92 JK	158	for (i = 0; i < q->nr; i++) {
	159	if (q->queue[i]->status == 'U')
	160	continue;
	161	if (!shown_header) {
3c1eb9cb	162	wt_status_print_cached_header(s->reference);
c91f0d92 JK	163	s->commitable = 1;
	164	shown_header = 1;
	165	}
	166	wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
	167	}
	168	if (shown_header)
	169	wt_status_print_trailer();
	170	}
	171
	172	static void wt_status_print_changed_cb(struct diff_queue_struct *q,
	173	struct diff_options *options,
	174	void *data)
	175	{
6e458bf6	176	struct wt_status *s = data;
c91f0d92	177	int i;
6e458bf6 JR	178	if (q->nr) {
6e458bf6 JR	179	s->workdir_clean = 0;
82dca848	180	wt_status_print_header("Changed but not added", use_add_msg);
6e458bf6	181	}
c91f0d92 JK	182	for (i = 0; i < q->nr; i++)
	183	wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
	184	if (q->nr)
	185	wt_status_print_trailer();
	186	}
	187
	188	void wt_status_print_initial(struct wt_status *s)
	189	{
	190	int i;
3a946802 JH	191	char buf[PATH_MAX];
3a946802 JH	192
c91f0d92 JK	193	read_cache();
	194	if (active_nr) {
	195	s->commitable = 1;
3c1eb9cb	196	wt_status_print_cached_header(NULL);
c91f0d92 JK	197	}
	198	for (i = 0; i < active_nr; i++) {
	199	color_printf(color(WT_STATUS_HEADER), "#\t");
	200	color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
3a946802 JH	201	quote_crlf(active_cache[i]->name,
3a946802 JH	202	buf, sizeof(buf)));
c91f0d92 JK	203	}
	204	if (active_nr)
	205	wt_status_print_trailer();
	206	}
	207
	208	static void wt_status_print_updated(struct wt_status *s)
	209	{
	210	struct rev_info rev;
c91f0d92	211	init_revisions(&rev, NULL);
49b8b292	212	setup_revisions(0, NULL, &rev, s->reference);
c91f0d92 JK	213	rev.diffopt.output_format \|= DIFF_FORMAT_CALLBACK;
	214	rev.diffopt.format_callback = wt_status_print_updated_cb;
	215	rev.diffopt.format_callback_data = s;
	216	rev.diffopt.detect_rename = 1;
	217	run_diff_index(&rev, 1);
	218	}
	219
	220	static void wt_status_print_changed(struct wt_status *s)
	221	{
	222	struct rev_info rev;
c91f0d92	223	init_revisions(&rev, "");
49b8b292	224	setup_revisions(0, NULL, &rev, NULL);
c91f0d92 JK	225	rev.diffopt.output_format \|= DIFF_FORMAT_CALLBACK;
	226	rev.diffopt.format_callback = wt_status_print_changed_cb;
	227	rev.diffopt.format_callback_data = s;
	228	run_diff_files(&rev, 0);
	229	}
	230
6e458bf6	231	static void wt_status_print_untracked(struct wt_status *s)
c91f0d92 JK	232	{
	233	struct dir_struct dir;
	234	const char *x;
	235	int i;
	236	int shown_header = 0;
	237
	238	memset(&dir, 0, sizeof(dir));
	239
	240	dir.exclude_per_dir = ".gitignore";
2074cb0a JS	241	if (!s->untracked) {
	242	dir.show_other_directories = 1;
	243	dir.hide_empty_directories = 1;
	244	}
c91f0d92 JK	245	x = git_path("info/exclude");
	246	if (file_exists(x))
	247	add_excludes_from_file(&dir, x);
	248
	249	read_directory(&dir, ".", "", 0);
	250	for(i = 0; i < dir.nr; i++) {
	251	/* check for matching entry, which is unmerged; lifted from
	252	* builtin-ls-files:show_other_files */
	253	struct dir_entry *ent = dir.entries[i];
	254	int pos = cache_name_pos(ent->name, ent->len);
	255	struct cache_entry *ce;
	256	if (0 <= pos)
	257	die("bug in wt_status_print_untracked");
	258	pos = -pos - 1;
	259	if (pos < active_nr) {
	260	ce = active_cache[pos];
	261	if (ce_namelen(ce) == ent->len &&
	262	!memcmp(ce->name, ent->name, ent->len))
	263	continue;
	264	}
	265	if (!shown_header) {
6e458bf6	266	s->workdir_clean = 0;
aeb80c70	267	wt_status_print_header("Untracked files", use_add_msg);
c91f0d92 JK	268	shown_header = 1;
	269	}
	270	color_printf(color(WT_STATUS_HEADER), "#\t");
	271	color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
	272	ent->len, ent->name);
	273	}
	274	}
	275
	276	static void wt_status_print_verbose(struct wt_status *s)
	277	{
	278	struct rev_info rev;
c91f0d92	279	init_revisions(&rev, NULL);
49b8b292	280	setup_revisions(0, NULL, &rev, s->reference);
c91f0d92 JK	281	rev.diffopt.output_format \|= DIFF_FORMAT_PATCH;
	282	rev.diffopt.detect_rename = 1;
	283	run_diff_index(&rev, 1);
	284	}
	285
	286	void wt_status_print(struct wt_status *s)
	287	{
98bf8a47 JR	288	unsigned char sha1[20];
	289	s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
	290
a990999e	291	if (s->branch)
c91f0d92 JK	292	color_printf_ln(color(WT_STATUS_HEADER),
	293	"# On branch %s", s->branch);
	294
	295	if (s->is_initial) {
	296	color_printf_ln(color(WT_STATUS_HEADER), "#");
	297	color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
	298	color_printf_ln(color(WT_STATUS_HEADER), "#");
	299	wt_status_print_initial(s);
	300	}
	301	else {
	302	wt_status_print_updated(s);
	303	discard_cache();
	304	}
	305
	306	wt_status_print_changed(s);
	307	wt_status_print_untracked(s);
	308
	309	if (s->verbose && !s->is_initial)
	310	wt_status_print_verbose(s);
6e458bf6 JR	311	if (!s->commitable) {
	312	if (s->amend)
	313	printf("# No changes\n");
	314	else if (s->workdir_clean)
	315	printf(s->is_initial
	316	? "nothing to commit\n"
	317	: "nothing to commit (working directory matches HEAD)\n");
	318	else
	319	printf("no changes added to commit (use \"git add\" and/or \"git commit [-a\|-i\|-o]\")\n");
	320	}
c91f0d92 JK	321	}
	322
	323	int git_status_config(const char k, const char v)
	324	{
a159ca0c	325	if (!strcmp(k, "status.color") \|\| !strcmp(k, "color.status")) {
c91f0d92 JK	326	wt_status_use_color = git_config_colorbool(k, v);
	327	return 0;
	328	}
a159ca0c	329	if (!strncmp(k, "status.color.", 13) \|\| !strncmp(k, "color.status", 13)) {
c91f0d92 JK	330	int slot = parse_status_slot(k, 13);
	331	color_parse(v, k, wt_status_colors[slot]);
	332	}
	333	return git_default_config(k, v);
	334	}