git config --get-colorbool
[git/git.git] / wt-status.c
1 #include "cache.h"
2 #include "wt-status.h"
3 #include "color.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 const char use_add_msg[] =
20 "use \"git add <file>...\" to update what will be committed";
21 static const char use_add_rm_msg[] =
22 "use \"git add/rm <file>...\" to update what will be committed";
23 static const char use_add_to_include_msg[] =
24 "use \"git add <file>...\" to include in what will be committed";
25
26 static int parse_status_slot(const char *var, int offset)
27 {
28 if (!strcasecmp(var+offset, "header"))
29 return WT_STATUS_HEADER;
30 if (!strcasecmp(var+offset, "updated")
31 || !strcasecmp(var+offset, "added"))
32 return WT_STATUS_UPDATED;
33 if (!strcasecmp(var+offset, "changed"))
34 return WT_STATUS_CHANGED;
35 if (!strcasecmp(var+offset, "untracked"))
36 return WT_STATUS_UNTRACKED;
37 die("bad config variable '%s'", var);
38 }
39
40 static const char* color(int slot)
41 {
42 return wt_status_use_color ? wt_status_colors[slot] : "";
43 }
44
45 void wt_status_prepare(struct wt_status *s)
46 {
47 unsigned char sha1[20];
48 const char *head;
49
50 memset(s, 0, sizeof(*s));
51 head = resolve_ref("HEAD", sha1, 0, NULL);
52 s->branch = head ? xstrdup(head) : NULL;
53 s->reference = "HEAD";
54 s->fp = stdout;
55 s->index_file = get_index_file();
56 }
57
58 static void wt_status_print_cached_header(struct wt_status *s)
59 {
60 const char *c = color(WT_STATUS_HEADER);
61 color_fprintf_ln(s->fp, c, "# Changes to be committed:");
62 if (s->reference) {
63 color_fprintf_ln(s->fp, c, "# (use \"git reset %s <file>...\" to unstage)", s->reference);
64 } else {
65 color_fprintf_ln(s->fp, c, "# (use \"git rm --cached <file>...\" to unstage)");
66 }
67 color_fprintf_ln(s->fp, c, "#");
68 }
69
70 static void wt_status_print_header(struct wt_status *s,
71 const char *main, const char *sub)
72 {
73 const char *c = color(WT_STATUS_HEADER);
74 color_fprintf_ln(s->fp, c, "# %s:", main);
75 color_fprintf_ln(s->fp, c, "# (%s)", sub);
76 color_fprintf_ln(s->fp, c, "#");
77 }
78
79 static void wt_status_print_trailer(struct wt_status *s)
80 {
81 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
82 }
83
84 static char *quote_path(const char *in, int len,
85 struct strbuf *out, const char *prefix)
86 {
87 if (len < 0)
88 len = strlen(in);
89
90 strbuf_grow(out, len);
91 strbuf_setlen(out, 0);
92 if (prefix) {
93 int off = 0;
94 while (prefix[off] && off < len && prefix[off] == in[off])
95 if (prefix[off] == '/') {
96 prefix += off + 1;
97 in += off + 1;
98 len -= off + 1;
99 off = 0;
100 } else
101 off++;
102
103 for (; *prefix; prefix++)
104 if (*prefix == '/')
105 strbuf_addstr(out, "../");
106 }
107
108 for ( ; len > 0; in++, len--) {
109 int ch = *in;
110
111 switch (ch) {
112 case '\n':
113 strbuf_addstr(out, "\\n");
114 break;
115 case '\r':
116 strbuf_addstr(out, "\\r");
117 break;
118 default:
119 strbuf_addch(out, ch);
120 continue;
121 }
122 }
123
124 return out->buf;
125 }
126
127 static void wt_status_print_filepair(struct wt_status *s,
128 int t, struct diff_filepair *p)
129 {
130 const char *c = color(t);
131 const char *one, *two;
132 struct strbuf onebuf, twobuf;
133
134 strbuf_init(&onebuf, 0);
135 strbuf_init(&twobuf, 0);
136 one = quote_path(p->one->path, -1, &onebuf, s->prefix);
137 two = quote_path(p->two->path, -1, &twobuf, s->prefix);
138
139 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
140 switch (p->status) {
141 case DIFF_STATUS_ADDED:
142 color_fprintf(s->fp, c, "new file: %s", one);
143 break;
144 case DIFF_STATUS_COPIED:
145 color_fprintf(s->fp, c, "copied: %s -> %s", one, two);
146 break;
147 case DIFF_STATUS_DELETED:
148 color_fprintf(s->fp, c, "deleted: %s", one);
149 break;
150 case DIFF_STATUS_MODIFIED:
151 color_fprintf(s->fp, c, "modified: %s", one);
152 break;
153 case DIFF_STATUS_RENAMED:
154 color_fprintf(s->fp, c, "renamed: %s -> %s", one, two);
155 break;
156 case DIFF_STATUS_TYPE_CHANGED:
157 color_fprintf(s->fp, c, "typechange: %s", one);
158 break;
159 case DIFF_STATUS_UNKNOWN:
160 color_fprintf(s->fp, c, "unknown: %s", one);
161 break;
162 case DIFF_STATUS_UNMERGED:
163 color_fprintf(s->fp, c, "unmerged: %s", one);
164 break;
165 default:
166 die("bug: unhandled diff status %c", p->status);
167 }
168 fprintf(s->fp, "\n");
169 strbuf_release(&onebuf);
170 strbuf_release(&twobuf);
171 }
172
173 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
174 struct diff_options *options,
175 void *data)
176 {
177 struct wt_status *s = data;
178 int shown_header = 0;
179 int i;
180 for (i = 0; i < q->nr; i++) {
181 if (q->queue[i]->status == 'U')
182 continue;
183 if (!shown_header) {
184 wt_status_print_cached_header(s);
185 s->commitable = 1;
186 shown_header = 1;
187 }
188 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
189 }
190 if (shown_header)
191 wt_status_print_trailer(s);
192 }
193
194 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
195 struct diff_options *options,
196 void *data)
197 {
198 struct wt_status *s = data;
199 int i;
200 if (q->nr) {
201 const char *msg = use_add_msg;
202 s->workdir_dirty = 1;
203 for (i = 0; i < q->nr; i++)
204 if (q->queue[i]->status == DIFF_STATUS_DELETED) {
205 msg = use_add_rm_msg;
206 break;
207 }
208 wt_status_print_header(s, "Changed but not updated", msg);
209 }
210 for (i = 0; i < q->nr; i++)
211 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
212 if (q->nr)
213 wt_status_print_trailer(s);
214 }
215
216 static void wt_read_cache(struct wt_status *s)
217 {
218 discard_cache();
219 read_cache_from(s->index_file);
220 }
221
222 static void wt_status_print_initial(struct wt_status *s)
223 {
224 int i;
225 struct strbuf buf;
226
227 strbuf_init(&buf, 0);
228 wt_read_cache(s);
229 if (active_nr) {
230 s->commitable = 1;
231 wt_status_print_cached_header(s);
232 }
233 for (i = 0; i < active_nr; i++) {
234 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
235 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
236 quote_path(active_cache[i]->name, -1,
237 &buf, s->prefix));
238 }
239 if (active_nr)
240 wt_status_print_trailer(s);
241 strbuf_release(&buf);
242 }
243
244 static void wt_status_print_updated(struct wt_status *s)
245 {
246 struct rev_info rev;
247 init_revisions(&rev, NULL);
248 setup_revisions(0, NULL, &rev, s->reference);
249 rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
250 rev.diffopt.format_callback = wt_status_print_updated_cb;
251 rev.diffopt.format_callback_data = s;
252 rev.diffopt.detect_rename = 1;
253 rev.diffopt.rename_limit = 100;
254 rev.diffopt.break_opt = 0;
255 wt_read_cache(s);
256 run_diff_index(&rev, 1);
257 }
258
259 static void wt_status_print_changed(struct wt_status *s)
260 {
261 struct rev_info rev;
262 init_revisions(&rev, "");
263 setup_revisions(0, NULL, &rev, NULL);
264 rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
265 rev.diffopt.format_callback = wt_status_print_changed_cb;
266 rev.diffopt.format_callback_data = s;
267 wt_read_cache(s);
268 run_diff_files(&rev, 0);
269 }
270
271 static void wt_status_print_untracked(struct wt_status *s)
272 {
273 struct dir_struct dir;
274 int i;
275 int shown_header = 0;
276 struct strbuf buf;
277
278 strbuf_init(&buf, 0);
279 memset(&dir, 0, sizeof(dir));
280
281 if (!s->untracked) {
282 dir.show_other_directories = 1;
283 dir.hide_empty_directories = 1;
284 }
285 setup_standard_excludes(&dir);
286
287 read_directory(&dir, ".", "", 0, NULL);
288 for(i = 0; i < dir.nr; i++) {
289 /* check for matching entry, which is unmerged; lifted from
290 * builtin-ls-files:show_other_files */
291 struct dir_entry *ent = dir.entries[i];
292 int pos = cache_name_pos(ent->name, ent->len);
293 struct cache_entry *ce;
294 if (0 <= pos)
295 die("bug in wt_status_print_untracked");
296 pos = -pos - 1;
297 if (pos < active_nr) {
298 ce = active_cache[pos];
299 if (ce_namelen(ce) == ent->len &&
300 !memcmp(ce->name, ent->name, ent->len))
301 continue;
302 }
303 if (!shown_header) {
304 s->workdir_untracked = 1;
305 wt_status_print_header(s, "Untracked files",
306 use_add_to_include_msg);
307 shown_header = 1;
308 }
309 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
310 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
311 quote_path(ent->name, ent->len,
312 &buf, s->prefix));
313 }
314 strbuf_release(&buf);
315 }
316
317 static void wt_status_print_verbose(struct wt_status *s)
318 {
319 struct rev_info rev;
320 int saved_stdout;
321
322 fflush(s->fp);
323
324 /* Sigh, the entire diff machinery is hardcoded to output to
325 * stdout. Do the dup-dance...*/
326 saved_stdout = dup(STDOUT_FILENO);
327 if (saved_stdout < 0 ||dup2(fileno(s->fp), STDOUT_FILENO) < 0)
328 die("couldn't redirect stdout\n");
329
330 init_revisions(&rev, NULL);
331 setup_revisions(0, NULL, &rev, s->reference);
332 rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
333 rev.diffopt.detect_rename = 1;
334 wt_read_cache(s);
335 run_diff_index(&rev, 1);
336
337 fflush(stdout);
338
339 if (dup2(saved_stdout, STDOUT_FILENO) < 0)
340 die("couldn't restore stdout\n");
341 close(saved_stdout);
342 }
343
344 void wt_status_print(struct wt_status *s)
345 {
346 unsigned char sha1[20];
347 s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
348
349 if (s->branch) {
350 const char *on_what = "On branch ";
351 const char *branch_name = s->branch;
352 if (!prefixcmp(branch_name, "refs/heads/"))
353 branch_name += 11;
354 else if (!strcmp(branch_name, "HEAD")) {
355 branch_name = "";
356 on_what = "Not currently on any branch.";
357 }
358 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
359 "# %s%s", on_what, branch_name);
360 }
361
362 if (s->is_initial) {
363 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
364 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
365 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
366 wt_status_print_initial(s);
367 }
368 else {
369 wt_status_print_updated(s);
370 }
371
372 wt_status_print_changed(s);
373 wt_status_print_untracked(s);
374
375 if (s->verbose && !s->is_initial)
376 wt_status_print_verbose(s);
377 if (!s->commitable) {
378 if (s->amend)
379 fprintf(s->fp, "# No changes\n");
380 else if (s->workdir_dirty)
381 printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
382 else if (s->workdir_untracked)
383 printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
384 else if (s->is_initial)
385 printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
386 else
387 printf("nothing to commit (working directory clean)\n");
388 }
389 }
390
391 int git_status_config(const char *k, const char *v)
392 {
393 if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
394 wt_status_use_color = git_config_colorbool(k, v, -1);
395 return 0;
396 }
397 if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
398 int slot = parse_status_slot(k, 13);
399 color_parse(v, k, wt_status_colors[slot]);
400 }
401 return git_default_config(k, v);
402 }