git-svn: Abort with an error if 'fetch' parameter is invalid.
[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 #include "quote.h"
11 #include "run-command.h"
12 #include "remote.h"
13
14 int wt_status_relative_paths = 1;
15 int wt_status_use_color = -1;
16 int wt_status_submodule_summary;
17 static char wt_status_colors[][COLOR_MAXLEN] = {
18         "",         /* WT_STATUS_HEADER: normal */
19         "\033[32m", /* WT_STATUS_UPDATED: green */
20         "\033[31m", /* WT_STATUS_CHANGED: red */
21         "\033[31m", /* WT_STATUS_UNTRACKED: red */
22         "\033[31m", /* WT_STATUS_NOBRANCH: red */
23 };
24
25 static const char use_add_msg[] =
26 "use \"git add <file>...\" to update what will be committed";
27 static const char use_add_rm_msg[] =
28 "use \"git add/rm <file>...\" to update what will be committed";
29 static const char use_add_to_include_msg[] =
30 "use \"git add <file>...\" to include in what will be committed";
31 enum untracked_status_type show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
32
33 static int parse_status_slot(const char *var, int offset)
34 {
35         if (!strcasecmp(var+offset, "header"))
36                 return WT_STATUS_HEADER;
37         if (!strcasecmp(var+offset, "updated")
38                 || !strcasecmp(var+offset, "added"))
39                 return WT_STATUS_UPDATED;
40         if (!strcasecmp(var+offset, "changed"))
41                 return WT_STATUS_CHANGED;
42         if (!strcasecmp(var+offset, "untracked"))
43                 return WT_STATUS_UNTRACKED;
44         if (!strcasecmp(var+offset, "nobranch"))
45                 return WT_STATUS_NOBRANCH;
46         die("bad config variable '%s'", var);
47 }
48
49 static const char* color(int slot)
50 {
51         return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
52 }
53
54 void wt_status_prepare(struct wt_status *s)
55 {
56         unsigned char sha1[20];
57         const char *head;
58
59         memset(s, 0, sizeof(*s));
60         head = resolve_ref("HEAD", sha1, 0, NULL);
61         s->branch = head ? xstrdup(head) : NULL;
62         s->reference = "HEAD";
63         s->fp = stdout;
64         s->index_file = get_index_file();
65 }
66
67 static void wt_status_print_cached_header(struct wt_status *s)
68 {
69         const char *c = color(WT_STATUS_HEADER);
70         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
71         if (!s->is_initial) {
72                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
73         } else {
74                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
75         }
76         color_fprintf_ln(s->fp, c, "#");
77 }
78
79 static void wt_status_print_header(struct wt_status *s,
80                                    const char *main, const char *sub)
81 {
82         const char *c = color(WT_STATUS_HEADER);
83         color_fprintf_ln(s->fp, c, "# %s:", main);
84         color_fprintf_ln(s->fp, c, "#   (%s)", sub);
85         color_fprintf_ln(s->fp, c, "#");
86 }
87
88 static void wt_status_print_trailer(struct wt_status *s)
89 {
90         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
91 }
92
93 #define quote_path quote_path_relative
94
95 static void wt_status_print_filepair(struct wt_status *s,
96                                      int t, struct diff_filepair *p)
97 {
98         const char *c = color(t);
99         const char *one, *two;
100         struct strbuf onebuf, twobuf;
101
102         strbuf_init(&onebuf, 0);
103         strbuf_init(&twobuf, 0);
104         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
105         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
106
107         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
108         switch (p->status) {
109         case DIFF_STATUS_ADDED:
110                 color_fprintf(s->fp, c, "new file:   %s", one);
111                 break;
112         case DIFF_STATUS_COPIED:
113                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
114                 break;
115         case DIFF_STATUS_DELETED:
116                 color_fprintf(s->fp, c, "deleted:    %s", one);
117                 break;
118         case DIFF_STATUS_MODIFIED:
119                 color_fprintf(s->fp, c, "modified:   %s", one);
120                 break;
121         case DIFF_STATUS_RENAMED:
122                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
123                 break;
124         case DIFF_STATUS_TYPE_CHANGED:
125                 color_fprintf(s->fp, c, "typechange: %s", one);
126                 break;
127         case DIFF_STATUS_UNKNOWN:
128                 color_fprintf(s->fp, c, "unknown:    %s", one);
129                 break;
130         case DIFF_STATUS_UNMERGED:
131                 color_fprintf(s->fp, c, "unmerged:   %s", one);
132                 break;
133         default:
134                 die("bug: unhandled diff status %c", p->status);
135         }
136         fprintf(s->fp, "\n");
137         strbuf_release(&onebuf);
138         strbuf_release(&twobuf);
139 }
140
141 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
142                 struct diff_options *options,
143                 void *data)
144 {
145         struct wt_status *s = data;
146         int shown_header = 0;
147         int i;
148         for (i = 0; i < q->nr; i++) {
149                 if (q->queue[i]->status == 'U')
150                         continue;
151                 if (!shown_header) {
152                         wt_status_print_cached_header(s);
153                         s->commitable = 1;
154                         shown_header = 1;
155                 }
156                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
157         }
158         if (shown_header)
159                 wt_status_print_trailer(s);
160 }
161
162 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
163                         struct diff_options *options,
164                         void *data)
165 {
166         struct wt_status *s = data;
167         int i;
168         if (q->nr) {
169                 const char *msg = use_add_msg;
170                 s->workdir_dirty = 1;
171                 for (i = 0; i < q->nr; i++)
172                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
173                                 msg = use_add_rm_msg;
174                                 break;
175                         }
176                 wt_status_print_header(s, "Changed but not updated", msg);
177         }
178         for (i = 0; i < q->nr; i++)
179                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
180         if (q->nr)
181                 wt_status_print_trailer(s);
182 }
183
184 static void wt_status_print_initial(struct wt_status *s)
185 {
186         int i;
187         struct strbuf buf;
188
189         strbuf_init(&buf, 0);
190         if (active_nr) {
191                 s->commitable = 1;
192                 wt_status_print_cached_header(s);
193         }
194         for (i = 0; i < active_nr; i++) {
195                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
196                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
197                                 quote_path(active_cache[i]->name, -1,
198                                            &buf, s->prefix));
199         }
200         if (active_nr)
201                 wt_status_print_trailer(s);
202         strbuf_release(&buf);
203 }
204
205 static void wt_status_print_updated(struct wt_status *s)
206 {
207         struct rev_info rev;
208         init_revisions(&rev, NULL);
209         setup_revisions(0, NULL, &rev, s->reference);
210         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
211         rev.diffopt.format_callback = wt_status_print_updated_cb;
212         rev.diffopt.format_callback_data = s;
213         rev.diffopt.detect_rename = 1;
214         rev.diffopt.rename_limit = 200;
215         rev.diffopt.break_opt = 0;
216         run_diff_index(&rev, 1);
217 }
218
219 static void wt_status_print_changed(struct wt_status *s)
220 {
221         struct rev_info rev;
222         init_revisions(&rev, "");
223         setup_revisions(0, NULL, &rev, NULL);
224         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
225         rev.diffopt.format_callback = wt_status_print_changed_cb;
226         rev.diffopt.format_callback_data = s;
227         run_diff_files(&rev, 0);
228 }
229
230 static void wt_status_print_submodule_summary(struct wt_status *s)
231 {
232         struct child_process sm_summary;
233         char summary_limit[64];
234         char index[PATH_MAX];
235         const char *env[] = { index, NULL };
236         const char *argv[] = {
237                 "submodule",
238                 "summary",
239                 "--cached",
240                 "--for-status",
241                 "--summary-limit",
242                 summary_limit,
243                 s->amend ? "HEAD^" : "HEAD",
244                 NULL
245         };
246
247         sprintf(summary_limit, "%d", wt_status_submodule_summary);
248         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
249
250         memset(&sm_summary, 0, sizeof(sm_summary));
251         sm_summary.argv = argv;
252         sm_summary.env = env;
253         sm_summary.git_cmd = 1;
254         sm_summary.no_stdin = 1;
255         fflush(s->fp);
256         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
257         run_command(&sm_summary);
258 }
259
260 static void wt_status_print_untracked(struct wt_status *s)
261 {
262         struct dir_struct dir;
263         int i;
264         int shown_header = 0;
265         struct strbuf buf;
266
267         strbuf_init(&buf, 0);
268         memset(&dir, 0, sizeof(dir));
269
270         if (!s->untracked) {
271                 dir.show_other_directories = 1;
272                 dir.hide_empty_directories = 1;
273         }
274         setup_standard_excludes(&dir);
275
276         read_directory(&dir, ".", "", 0, NULL);
277         for(i = 0; i < dir.nr; i++) {
278                 /* check for matching entry, which is unmerged; lifted from
279                  * builtin-ls-files:show_other_files */
280                 struct dir_entry *ent = dir.entries[i];
281                 int pos = cache_name_pos(ent->name, ent->len);
282                 struct cache_entry *ce;
283                 if (0 <= pos)
284                         die("bug in wt_status_print_untracked");
285                 pos = -pos - 1;
286                 if (pos < active_nr) {
287                         ce = active_cache[pos];
288                         if (ce_namelen(ce) == ent->len &&
289                             !memcmp(ce->name, ent->name, ent->len))
290                                 continue;
291                 }
292                 if (!shown_header) {
293                         s->workdir_untracked = 1;
294                         wt_status_print_header(s, "Untracked files",
295                                                use_add_to_include_msg);
296                         shown_header = 1;
297                 }
298                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
299                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
300                                 quote_path(ent->name, ent->len,
301                                         &buf, s->prefix));
302         }
303         strbuf_release(&buf);
304 }
305
306 static void wt_status_print_verbose(struct wt_status *s)
307 {
308         struct rev_info rev;
309
310         init_revisions(&rev, NULL);
311         setup_revisions(0, NULL, &rev, s->reference);
312         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
313         rev.diffopt.detect_rename = 1;
314         rev.diffopt.file = s->fp;
315         rev.diffopt.close_file = 0;
316         run_diff_index(&rev, 1);
317 }
318
319 static void wt_status_print_tracking(struct wt_status *s)
320 {
321         struct strbuf sb = STRBUF_INIT;
322         const char *cp, *ep;
323         struct branch *branch;
324
325         assert(s->branch && !s->is_initial);
326         if (prefixcmp(s->branch, "refs/heads/"))
327                 return;
328         branch = branch_get(s->branch + 11);
329         if (!format_tracking_info(branch, &sb))
330                 return;
331
332         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
333                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
334                                  "# %.*s", (int)(ep - cp), cp);
335         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
336 }
337
338 void wt_status_print(struct wt_status *s)
339 {
340         unsigned char sha1[20];
341         const char *branch_color = color(WT_STATUS_HEADER);
342
343         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
344         if (s->branch) {
345                 const char *on_what = "On branch ";
346                 const char *branch_name = s->branch;
347                 if (!prefixcmp(branch_name, "refs/heads/"))
348                         branch_name += 11;
349                 else if (!strcmp(branch_name, "HEAD")) {
350                         branch_name = "";
351                         branch_color = color(WT_STATUS_NOBRANCH);
352                         on_what = "Not currently on any branch.";
353                 }
354                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "# ");
355                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
356                 if (!s->is_initial)
357                         wt_status_print_tracking(s);
358         }
359
360         if (s->is_initial) {
361                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
362                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
363                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
364                 wt_status_print_initial(s);
365         }
366         else {
367                 wt_status_print_updated(s);
368         }
369
370         wt_status_print_changed(s);
371         if (wt_status_submodule_summary)
372                 wt_status_print_submodule_summary(s);
373         if (show_untracked_files)
374                 wt_status_print_untracked(s);
375         else if (s->commitable)
376                  fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
377
378         if (s->verbose && !s->is_initial)
379                 wt_status_print_verbose(s);
380         if (!s->commitable) {
381                 if (s->amend)
382                         fprintf(s->fp, "# No changes\n");
383                 else if (s->nowarn)
384                         ; /* nothing */
385                 else if (s->workdir_dirty)
386                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
387                 else if (s->workdir_untracked)
388                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
389                 else if (s->is_initial)
390                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
391                 else if (!show_untracked_files)
392                         printf("nothing to commit (use -u to show untracked files)\n");
393                 else
394                         printf("nothing to commit (working directory clean)\n");
395         }
396 }
397
398 int git_status_config(const char *k, const char *v, void *cb)
399 {
400         if (!strcmp(k, "status.submodulesummary")) {
401                 int is_bool;
402                 wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
403                 if (is_bool && wt_status_submodule_summary)
404                         wt_status_submodule_summary = -1;
405                 return 0;
406         }
407         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
408                 wt_status_use_color = git_config_colorbool(k, v, -1);
409                 return 0;
410         }
411         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
412                 int slot = parse_status_slot(k, 13);
413                 if (!v)
414                         return config_error_nonbool(k);
415                 color_parse(v, k, wt_status_colors[slot]);
416                 return 0;
417         }
418         if (!strcmp(k, "status.relativepaths")) {
419                 wt_status_relative_paths = git_config_bool(k, v);
420                 return 0;
421         }
422         if (!strcmp(k, "status.showuntrackedfiles")) {
423                 if (!v)
424                         return config_error_nonbool(k);
425                 else if (!strcmp(v, "no"))
426                         show_untracked_files = SHOW_NO_UNTRACKED_FILES;
427                 else if (!strcmp(v, "normal"))
428                         show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
429                 else if (!strcmp(v, "all"))
430                         show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
431                 else
432                         return error("Invalid untracked files mode '%s'", v);
433                 return 0;
434         }
435         return git_color_default_config(k, v, cb);
436 }