Merge branch 'maint-1.5.4' into maint
[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
12 int wt_status_relative_paths = 1;
13 int wt_status_use_color = -1;
14 static char wt_status_colors[][COLOR_MAXLEN] = {
15         "",         /* WT_STATUS_HEADER: normal */
16         "\033[32m", /* WT_STATUS_UPDATED: green */
17         "\033[31m", /* WT_STATUS_CHANGED: red */
18         "\033[31m", /* WT_STATUS_UNTRACKED: red */
19 };
20
21 static const char use_add_msg[] =
22 "use \"git add <file>...\" to update what will be committed";
23 static const char use_add_rm_msg[] =
24 "use \"git add/rm <file>...\" to update what will be committed";
25 static const char use_add_to_include_msg[] =
26 "use \"git add <file>...\" to include in what will be committed";
27
28 static int parse_status_slot(const char *var, int offset)
29 {
30         if (!strcasecmp(var+offset, "header"))
31                 return WT_STATUS_HEADER;
32         if (!strcasecmp(var+offset, "updated")
33                 || !strcasecmp(var+offset, "added"))
34                 return WT_STATUS_UPDATED;
35         if (!strcasecmp(var+offset, "changed"))
36                 return WT_STATUS_CHANGED;
37         if (!strcasecmp(var+offset, "untracked"))
38                 return WT_STATUS_UNTRACKED;
39         die("bad config variable '%s'", var);
40 }
41
42 static const char* color(int slot)
43 {
44         return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
45 }
46
47 void wt_status_prepare(struct wt_status *s)
48 {
49         unsigned char sha1[20];
50         const char *head;
51
52         memset(s, 0, sizeof(*s));
53         head = resolve_ref("HEAD", sha1, 0, NULL);
54         s->branch = head ? xstrdup(head) : NULL;
55         s->reference = "HEAD";
56         s->fp = stdout;
57         s->index_file = get_index_file();
58 }
59
60 static void wt_status_print_cached_header(struct wt_status *s)
61 {
62         const char *c = color(WT_STATUS_HEADER);
63         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
64         if (!s->is_initial) {
65                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
66         } else {
67                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
68         }
69         color_fprintf_ln(s->fp, c, "#");
70 }
71
72 static void wt_status_print_header(struct wt_status *s,
73                                    const char *main, const char *sub)
74 {
75         const char *c = color(WT_STATUS_HEADER);
76         color_fprintf_ln(s->fp, c, "# %s:", main);
77         color_fprintf_ln(s->fp, c, "#   (%s)", sub);
78         color_fprintf_ln(s->fp, c, "#");
79 }
80
81 static void wt_status_print_trailer(struct wt_status *s)
82 {
83         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
84 }
85
86 #define quote_path quote_path_relative
87
88 static void wt_status_print_filepair(struct wt_status *s,
89                                      int t, struct diff_filepair *p)
90 {
91         const char *c = color(t);
92         const char *one, *two;
93         struct strbuf onebuf, twobuf;
94
95         strbuf_init(&onebuf, 0);
96         strbuf_init(&twobuf, 0);
97         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
98         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
99
100         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
101         switch (p->status) {
102         case DIFF_STATUS_ADDED:
103                 color_fprintf(s->fp, c, "new file:   %s", one);
104                 break;
105         case DIFF_STATUS_COPIED:
106                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
107                 break;
108         case DIFF_STATUS_DELETED:
109                 color_fprintf(s->fp, c, "deleted:    %s", one);
110                 break;
111         case DIFF_STATUS_MODIFIED:
112                 color_fprintf(s->fp, c, "modified:   %s", one);
113                 break;
114         case DIFF_STATUS_RENAMED:
115                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
116                 break;
117         case DIFF_STATUS_TYPE_CHANGED:
118                 color_fprintf(s->fp, c, "typechange: %s", one);
119                 break;
120         case DIFF_STATUS_UNKNOWN:
121                 color_fprintf(s->fp, c, "unknown:    %s", one);
122                 break;
123         case DIFF_STATUS_UNMERGED:
124                 color_fprintf(s->fp, c, "unmerged:   %s", one);
125                 break;
126         default:
127                 die("bug: unhandled diff status %c", p->status);
128         }
129         fprintf(s->fp, "\n");
130         strbuf_release(&onebuf);
131         strbuf_release(&twobuf);
132 }
133
134 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
135                 struct diff_options *options,
136                 void *data)
137 {
138         struct wt_status *s = data;
139         int shown_header = 0;
140         int i;
141         for (i = 0; i < q->nr; i++) {
142                 if (q->queue[i]->status == 'U')
143                         continue;
144                 if (!shown_header) {
145                         wt_status_print_cached_header(s);
146                         s->commitable = 1;
147                         shown_header = 1;
148                 }
149                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
150         }
151         if (shown_header)
152                 wt_status_print_trailer(s);
153 }
154
155 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
156                         struct diff_options *options,
157                         void *data)
158 {
159         struct wt_status *s = data;
160         int i;
161         if (q->nr) {
162                 const char *msg = use_add_msg;
163                 s->workdir_dirty = 1;
164                 for (i = 0; i < q->nr; i++)
165                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
166                                 msg = use_add_rm_msg;
167                                 break;
168                         }
169                 wt_status_print_header(s, "Changed but not updated", msg);
170         }
171         for (i = 0; i < q->nr; i++)
172                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
173         if (q->nr)
174                 wt_status_print_trailer(s);
175 }
176
177 static void wt_status_print_initial(struct wt_status *s)
178 {
179         int i;
180         struct strbuf buf;
181
182         strbuf_init(&buf, 0);
183         if (active_nr) {
184                 s->commitable = 1;
185                 wt_status_print_cached_header(s);
186         }
187         for (i = 0; i < active_nr; i++) {
188                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
189                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
190                                 quote_path(active_cache[i]->name, -1,
191                                            &buf, s->prefix));
192         }
193         if (active_nr)
194                 wt_status_print_trailer(s);
195         strbuf_release(&buf);
196 }
197
198 static void wt_status_print_updated(struct wt_status *s)
199 {
200         struct rev_info rev;
201         init_revisions(&rev, NULL);
202         setup_revisions(0, NULL, &rev, s->reference);
203         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
204         rev.diffopt.format_callback = wt_status_print_updated_cb;
205         rev.diffopt.format_callback_data = s;
206         rev.diffopt.detect_rename = 1;
207         rev.diffopt.rename_limit = 100;
208         rev.diffopt.break_opt = 0;
209         run_diff_index(&rev, 1);
210 }
211
212 static void wt_status_print_changed(struct wt_status *s)
213 {
214         struct rev_info rev;
215         init_revisions(&rev, "");
216         setup_revisions(0, NULL, &rev, NULL);
217         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
218         rev.diffopt.format_callback = wt_status_print_changed_cb;
219         rev.diffopt.format_callback_data = s;
220         run_diff_files(&rev, 0);
221 }
222
223 static void wt_status_print_untracked(struct wt_status *s)
224 {
225         struct dir_struct dir;
226         int i;
227         int shown_header = 0;
228         struct strbuf buf;
229
230         strbuf_init(&buf, 0);
231         memset(&dir, 0, sizeof(dir));
232
233         if (!s->untracked) {
234                 dir.show_other_directories = 1;
235                 dir.hide_empty_directories = 1;
236         }
237         setup_standard_excludes(&dir);
238
239         read_directory(&dir, ".", "", 0, NULL);
240         for(i = 0; i < dir.nr; i++) {
241                 /* check for matching entry, which is unmerged; lifted from
242                  * builtin-ls-files:show_other_files */
243                 struct dir_entry *ent = dir.entries[i];
244                 int pos = cache_name_pos(ent->name, ent->len);
245                 struct cache_entry *ce;
246                 if (0 <= pos)
247                         die("bug in wt_status_print_untracked");
248                 pos = -pos - 1;
249                 if (pos < active_nr) {
250                         ce = active_cache[pos];
251                         if (ce_namelen(ce) == ent->len &&
252                             !memcmp(ce->name, ent->name, ent->len))
253                                 continue;
254                 }
255                 if (!shown_header) {
256                         s->workdir_untracked = 1;
257                         wt_status_print_header(s, "Untracked files",
258                                                use_add_to_include_msg);
259                         shown_header = 1;
260                 }
261                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
262                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
263                                 quote_path(ent->name, ent->len,
264                                         &buf, s->prefix));
265         }
266         strbuf_release(&buf);
267 }
268
269 static void wt_status_print_verbose(struct wt_status *s)
270 {
271         struct rev_info rev;
272
273         init_revisions(&rev, NULL);
274         setup_revisions(0, NULL, &rev, s->reference);
275         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
276         rev.diffopt.detect_rename = 1;
277         rev.diffopt.file = s->fp;
278         rev.diffopt.close_file = 0;
279         run_diff_index(&rev, 1);
280 }
281
282 void wt_status_print(struct wt_status *s)
283 {
284         unsigned char sha1[20];
285         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
286
287         if (s->branch) {
288                 const char *on_what = "On branch ";
289                 const char *branch_name = s->branch;
290                 if (!prefixcmp(branch_name, "refs/heads/"))
291                         branch_name += 11;
292                 else if (!strcmp(branch_name, "HEAD")) {
293                         branch_name = "";
294                         on_what = "Not currently on any branch.";
295                 }
296                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
297                         "# %s%s", on_what, branch_name);
298         }
299
300         if (s->is_initial) {
301                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
302                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
303                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
304                 wt_status_print_initial(s);
305         }
306         else {
307                 wt_status_print_updated(s);
308         }
309
310         wt_status_print_changed(s);
311         wt_status_print_untracked(s);
312
313         if (s->verbose && !s->is_initial)
314                 wt_status_print_verbose(s);
315         if (!s->commitable) {
316                 if (s->amend)
317                         fprintf(s->fp, "# No changes\n");
318                 else if (s->nowarn)
319                         ; /* nothing */
320                 else if (s->workdir_dirty)
321                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
322                 else if (s->workdir_untracked)
323                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
324                 else if (s->is_initial)
325                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
326                 else
327                         printf("nothing to commit (working directory clean)\n");
328         }
329 }
330
331 int git_status_config(const char *k, const char *v)
332 {
333         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
334                 wt_status_use_color = git_config_colorbool(k, v, -1);
335                 return 0;
336         }
337         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
338                 int slot = parse_status_slot(k, 13);
339                 if (!v)
340                         return config_error_nonbool(k);
341                 color_parse(v, k, wt_status_colors[slot]);
342                 return 0;
343         }
344         if (!strcmp(k, "status.relativepaths")) {
345                 wt_status_relative_paths = git_config_bool(k, v);
346                 return 0;
347         }
348         return git_color_default_config(k, v);
349 }