Merge branch 'uk/rev-parse-parse-opt'
[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 static int wt_status_submodule_summary;
17 static char wt_status_colors[][COLOR_MAXLEN] = {
18         GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
19         GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
20         GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
21         GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
22         GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
23 };
24
25 enum untracked_status_type show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
26
27 static int parse_status_slot(const char *var, int offset)
28 {
29         if (!strcasecmp(var+offset, "header"))
30                 return WT_STATUS_HEADER;
31         if (!strcasecmp(var+offset, "updated")
32                 || !strcasecmp(var+offset, "added"))
33                 return WT_STATUS_UPDATED;
34         if (!strcasecmp(var+offset, "changed"))
35                 return WT_STATUS_CHANGED;
36         if (!strcasecmp(var+offset, "untracked"))
37                 return WT_STATUS_UNTRACKED;
38         if (!strcasecmp(var+offset, "nobranch"))
39                 return WT_STATUS_NOBRANCH;
40         die("bad config variable '%s'", var);
41 }
42
43 static const char *color(int slot)
44 {
45         return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
46 }
47
48 void wt_status_prepare(struct wt_status *s)
49 {
50         unsigned char sha1[20];
51         const char *head;
52
53         memset(s, 0, sizeof(*s));
54         head = resolve_ref("HEAD", sha1, 0, NULL);
55         s->branch = head ? xstrdup(head) : NULL;
56         s->reference = "HEAD";
57         s->fp = stdout;
58         s->index_file = get_index_file();
59 }
60
61 static void wt_status_print_cached_header(struct wt_status *s)
62 {
63         const char *c = color(WT_STATUS_HEADER);
64         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
65         if (!s->is_initial) {
66                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
67         } else {
68                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
69         }
70         color_fprintf_ln(s->fp, c, "#");
71 }
72
73 static void wt_status_print_dirty_header(struct wt_status *s,
74                                          int has_deleted)
75 {
76         const char *c = color(WT_STATUS_HEADER);
77         color_fprintf_ln(s->fp, c, "# Changed but not updated:");
78         if (!has_deleted)
79                 color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
80         else
81                 color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
82         color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
83         color_fprintf_ln(s->fp, c, "#");
84 }
85
86 static void wt_status_print_untracked_header(struct wt_status *s)
87 {
88         const char *c = color(WT_STATUS_HEADER);
89         color_fprintf_ln(s->fp, c, "# Untracked files:");
90         color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to include in what will be committed)");
91         color_fprintf_ln(s->fp, c, "#");
92 }
93
94 static void wt_status_print_trailer(struct wt_status *s)
95 {
96         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
97 }
98
99 #define quote_path quote_path_relative
100
101 static void wt_status_print_filepair(struct wt_status *s,
102                                      int t, struct diff_filepair *p)
103 {
104         const char *c = color(t);
105         const char *one, *two;
106         struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
107
108         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
109         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
110
111         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
112         switch (p->status) {
113         case DIFF_STATUS_ADDED:
114                 color_fprintf(s->fp, c, "new file:   %s", one);
115                 break;
116         case DIFF_STATUS_COPIED:
117                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
118                 break;
119         case DIFF_STATUS_DELETED:
120                 color_fprintf(s->fp, c, "deleted:    %s", one);
121                 break;
122         case DIFF_STATUS_MODIFIED:
123                 color_fprintf(s->fp, c, "modified:   %s", one);
124                 break;
125         case DIFF_STATUS_RENAMED:
126                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
127                 break;
128         case DIFF_STATUS_TYPE_CHANGED:
129                 color_fprintf(s->fp, c, "typechange: %s", one);
130                 break;
131         case DIFF_STATUS_UNKNOWN:
132                 color_fprintf(s->fp, c, "unknown:    %s", one);
133                 break;
134         case DIFF_STATUS_UNMERGED:
135                 color_fprintf(s->fp, c, "unmerged:   %s", one);
136                 break;
137         default:
138                 die("bug: unhandled diff status %c", p->status);
139         }
140         fprintf(s->fp, "\n");
141         strbuf_release(&onebuf);
142         strbuf_release(&twobuf);
143 }
144
145 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
146                 struct diff_options *options,
147                 void *data)
148 {
149         struct wt_status *s = data;
150         int shown_header = 0;
151         int i;
152         for (i = 0; i < q->nr; i++) {
153                 if (q->queue[i]->status == 'U')
154                         continue;
155                 if (!shown_header) {
156                         wt_status_print_cached_header(s);
157                         s->commitable = 1;
158                         shown_header = 1;
159                 }
160                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
161         }
162         if (shown_header)
163                 wt_status_print_trailer(s);
164 }
165
166 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
167                         struct diff_options *options,
168                         void *data)
169 {
170         struct wt_status *s = data;
171         int i;
172         if (q->nr) {
173                 int has_deleted = 0;
174                 s->workdir_dirty = 1;
175                 for (i = 0; i < q->nr; i++)
176                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
177                                 has_deleted = 1;
178                                 break;
179                         }
180                 wt_status_print_dirty_header(s, has_deleted);
181         }
182         for (i = 0; i < q->nr; i++)
183                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
184         if (q->nr)
185                 wt_status_print_trailer(s);
186 }
187
188 static void wt_status_print_updated(struct wt_status *s)
189 {
190         struct rev_info rev;
191         init_revisions(&rev, NULL);
192         setup_revisions(0, NULL, &rev,
193                 s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
194         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
195         rev.diffopt.format_callback = wt_status_print_updated_cb;
196         rev.diffopt.format_callback_data = s;
197         rev.diffopt.detect_rename = 1;
198         rev.diffopt.rename_limit = 200;
199         rev.diffopt.break_opt = 0;
200         run_diff_index(&rev, 1);
201 }
202
203 static void wt_status_print_changed(struct wt_status *s)
204 {
205         struct rev_info rev;
206         init_revisions(&rev, "");
207         setup_revisions(0, NULL, &rev, NULL);
208         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
209         rev.diffopt.format_callback = wt_status_print_changed_cb;
210         rev.diffopt.format_callback_data = s;
211         run_diff_files(&rev, 0);
212 }
213
214 static void wt_status_print_submodule_summary(struct wt_status *s)
215 {
216         struct child_process sm_summary;
217         char summary_limit[64];
218         char index[PATH_MAX];
219         const char *env[] = { index, NULL };
220         const char *argv[] = {
221                 "submodule",
222                 "summary",
223                 "--cached",
224                 "--for-status",
225                 "--summary-limit",
226                 summary_limit,
227                 s->amend ? "HEAD^" : "HEAD",
228                 NULL
229         };
230
231         sprintf(summary_limit, "%d", wt_status_submodule_summary);
232         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
233
234         memset(&sm_summary, 0, sizeof(sm_summary));
235         sm_summary.argv = argv;
236         sm_summary.env = env;
237         sm_summary.git_cmd = 1;
238         sm_summary.no_stdin = 1;
239         fflush(s->fp);
240         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
241         run_command(&sm_summary);
242 }
243
244 static void wt_status_print_untracked(struct wt_status *s)
245 {
246         struct dir_struct dir;
247         int i;
248         int shown_header = 0;
249         struct strbuf buf = STRBUF_INIT;
250
251         memset(&dir, 0, sizeof(dir));
252
253         if (!s->untracked)
254                 dir.flags |=
255                         DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
256         setup_standard_excludes(&dir);
257
258         read_directory(&dir, ".", "", 0, NULL);
259         for(i = 0; i < dir.nr; i++) {
260                 struct dir_entry *ent = dir.entries[i];
261                 if (!cache_name_is_other(ent->name, ent->len))
262                         continue;
263                 if (!shown_header) {
264                         s->workdir_untracked = 1;
265                         wt_status_print_untracked_header(s);
266                         shown_header = 1;
267                 }
268                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
269                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
270                                 quote_path(ent->name, ent->len,
271                                         &buf, s->prefix));
272         }
273         strbuf_release(&buf);
274 }
275
276 static void wt_status_print_verbose(struct wt_status *s)
277 {
278         struct rev_info rev;
279
280         init_revisions(&rev, NULL);
281         DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
282         setup_revisions(0, NULL, &rev,
283                 s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
284         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
285         rev.diffopt.detect_rename = 1;
286         rev.diffopt.file = s->fp;
287         rev.diffopt.close_file = 0;
288         /*
289          * If we're not going to stdout, then we definitely don't
290          * want color, since we are going to the commit message
291          * file (and even the "auto" setting won't work, since it
292          * will have checked isatty on stdout).
293          */
294         if (s->fp != stdout)
295                 DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
296         run_diff_index(&rev, 1);
297 }
298
299 static void wt_status_print_tracking(struct wt_status *s)
300 {
301         struct strbuf sb = STRBUF_INIT;
302         const char *cp, *ep;
303         struct branch *branch;
304
305         assert(s->branch && !s->is_initial);
306         if (prefixcmp(s->branch, "refs/heads/"))
307                 return;
308         branch = branch_get(s->branch + 11);
309         if (!format_tracking_info(branch, &sb))
310                 return;
311
312         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
313                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
314                                  "# %.*s", (int)(ep - cp), cp);
315         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
316 }
317
318 void wt_status_print(struct wt_status *s)
319 {
320         unsigned char sha1[20];
321         const char *branch_color = color(WT_STATUS_HEADER);
322
323         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
324         if (s->branch) {
325                 const char *on_what = "On branch ";
326                 const char *branch_name = s->branch;
327                 if (!prefixcmp(branch_name, "refs/heads/"))
328                         branch_name += 11;
329                 else if (!strcmp(branch_name, "HEAD")) {
330                         branch_name = "";
331                         branch_color = color(WT_STATUS_NOBRANCH);
332                         on_what = "Not currently on any branch.";
333                 }
334                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "# ");
335                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
336                 if (!s->is_initial)
337                         wt_status_print_tracking(s);
338         }
339
340         if (s->is_initial) {
341                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
342                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
343                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
344         }
345
346         wt_status_print_updated(s);
347         wt_status_print_changed(s);
348         if (wt_status_submodule_summary)
349                 wt_status_print_submodule_summary(s);
350         if (show_untracked_files)
351                 wt_status_print_untracked(s);
352         else if (s->commitable)
353                  fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
354
355         if (s->verbose)
356                 wt_status_print_verbose(s);
357         if (!s->commitable) {
358                 if (s->amend)
359                         fprintf(s->fp, "# No changes\n");
360                 else if (s->nowarn)
361                         ; /* nothing */
362                 else if (s->workdir_dirty)
363                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
364                 else if (s->workdir_untracked)
365                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
366                 else if (s->is_initial)
367                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
368                 else if (!show_untracked_files)
369                         printf("nothing to commit (use -u to show untracked files)\n");
370                 else
371                         printf("nothing to commit (working directory clean)\n");
372         }
373 }
374
375 int git_status_config(const char *k, const char *v, void *cb)
376 {
377         if (!strcmp(k, "status.submodulesummary")) {
378                 int is_bool;
379                 wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
380                 if (is_bool && wt_status_submodule_summary)
381                         wt_status_submodule_summary = -1;
382                 return 0;
383         }
384         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
385                 wt_status_use_color = git_config_colorbool(k, v, -1);
386                 return 0;
387         }
388         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
389                 int slot = parse_status_slot(k, 13);
390                 if (!v)
391                         return config_error_nonbool(k);
392                 color_parse(v, k, wt_status_colors[slot]);
393                 return 0;
394         }
395         if (!strcmp(k, "status.relativepaths")) {
396                 wt_status_relative_paths = git_config_bool(k, v);
397                 return 0;
398         }
399         if (!strcmp(k, "status.showuntrackedfiles")) {
400                 if (!v)
401                         return config_error_nonbool(k);
402                 else if (!strcmp(v, "no"))
403                         show_untracked_files = SHOW_NO_UNTRACKED_FILES;
404                 else if (!strcmp(v, "normal"))
405                         show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
406                 else if (!strcmp(v, "all"))
407                         show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
408                 else
409                         return error("Invalid untracked files mode '%s'", v);
410                 return 0;
411         }
412         return git_diff_ui_config(k, v, cb);
413 }