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

#include "wt-status.h"
#include "color.h"
#include "cache.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 int parse_status_slot(const char *var, int offset)
{
	if (!strcasecmp(var+offset, "header"))
		return WT_STATUS_HEADER;
	if (!strcasecmp(var+offset, "updated"))
		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;

	s->is_initial = get_sha1("HEAD", sha1) ? 1 : 0;

	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;
}

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_header("Updated but not checked in",
					"will commit");
			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)
{
	int i;
	if (q->nr)
		wt_status_print_header("Changed but not updated",
				"use git-update-index to mark for commit");
	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_header("Updated but not checked in",
				"will commit");
	}
	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(const 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) {
			wt_status_print_header("Untracked files",
				"use \"git add\" to add to commit");
			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)
{
	if (s->branch && strcmp(s->branch, "refs/heads/master"))
		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)
		printf("%s\n", s->amend ? "# No changes" : "nothing to commit");
}

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