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 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, twobuf;
 107
 108         strbuf_init(&onebuf, 0);
 109         strbuf_init(&twobuf, 0);
 110         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
 111         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
 112
 113         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 114         switch (p->status) {
 115         case DIFF_STATUS_ADDED:
 116                 color_fprintf(s->fp, c, "new file:   %s", one);
 117                 break;
 118         case DIFF_STATUS_COPIED:
 119                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 120                 break;
 121         case DIFF_STATUS_DELETED:
 122                 color_fprintf(s->fp, c, "deleted:    %s", one);
 123                 break;
 124         case DIFF_STATUS_MODIFIED:
 125                 color_fprintf(s->fp, c, "modified:   %s", one);
 126                 break;
 127         case DIFF_STATUS_RENAMED:
 128                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 129                 break;
 130         case DIFF_STATUS_TYPE_CHANGED:
 131                 color_fprintf(s->fp, c, "typechange: %s", one);
 132                 break;
 133         case DIFF_STATUS_UNKNOWN:
 134                 color_fprintf(s->fp, c, "unknown:    %s", one);
 135                 break;
 136         case DIFF_STATUS_UNMERGED:
 137                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 138                 break;
 139         default:
 140                 die("bug: unhandled diff status %c", p->status);
 141         }
 142         fprintf(s->fp, "\n");
 143         strbuf_release(&onebuf);
 144         strbuf_release(&twobuf);
 145 }
 146
 147 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 148                 struct diff_options *options,
 149                 void *data)
 150 {
 151         struct wt_status *s = data;
 152         int shown_header = 0;
 153         int i;
 154         for (i = 0; i < q->nr; i++) {
 155                 if (q->queue[i]->status == 'U')
 156                         continue;
 157                 if (!shown_header) {
 158                         wt_status_print_cached_header(s);
 159                         s->commitable = 1;
 160                         shown_header = 1;
 161                 }
 162                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 163         }
 164         if (shown_header)
 165                 wt_status_print_trailer(s);
 166 }
 167
 168 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 169                         struct diff_options *options,
 170                         void *data)
 171 {
 172         struct wt_status *s = data;
 173         int i;
 174         if (q->nr) {
 175                 int has_deleted = 0;
 176                 s->workdir_dirty = 1;
 177                 for (i = 0; i < q->nr; i++)
 178                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 179                                 has_deleted = 1;
 180                                 break;
 181                         }
 182                 wt_status_print_dirty_header(s, has_deleted);
 183         }
 184         for (i = 0; i < q->nr; i++)
 185                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 186         if (q->nr)
 187                 wt_status_print_trailer(s);
 188 }
 189
 190 static void wt_status_print_initial(struct wt_status *s)
 191 {
 192         int i;
 193         struct strbuf buf;
 194
 195         strbuf_init(&buf, 0);
 196         if (active_nr) {
 197                 s->commitable = 1;
 198                 wt_status_print_cached_header(s);
 199         }
 200         for (i = 0; i < active_nr; i++) {
 201                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 202                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 203                                 quote_path(active_cache[i]->name, -1,
 204                                            &buf, s->prefix));
 205         }
 206         if (active_nr)
 207                 wt_status_print_trailer(s);
 208         strbuf_release(&buf);
 209 }
 210
 211 static void wt_status_print_updated(struct wt_status *s)
 212 {
 213         struct rev_info rev;
 214         init_revisions(&rev, NULL);
 215         setup_revisions(0, NULL, &rev, s->reference);
 216         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 217         rev.diffopt.format_callback = wt_status_print_updated_cb;
 218         rev.diffopt.format_callback_data = s;
 219         rev.diffopt.detect_rename = 1;
 220         rev.diffopt.rename_limit = 200;
 221         rev.diffopt.break_opt = 0;
 222         run_diff_index(&rev, 1);
 223 }
 224
 225 static void wt_status_print_changed(struct wt_status *s)
 226 {
 227         struct rev_info rev;
 228         init_revisions(&rev, "");
 229         setup_revisions(0, NULL, &rev, NULL);
 230         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 231         rev.diffopt.format_callback = wt_status_print_changed_cb;
 232         rev.diffopt.format_callback_data = s;
 233         run_diff_files(&rev, 0);
 234 }
 235
 236 static void wt_status_print_submodule_summary(struct wt_status *s)
 237 {
 238         struct child_process sm_summary;
 239         char summary_limit[64];
 240         char index[PATH_MAX];
 241         const char *env[] = { index, NULL };
 242         const char *argv[] = {
 243                 "submodule",
 244                 "summary",
 245                 "--cached",
 246                 "--for-status",
 247                 "--summary-limit",
 248                 summary_limit,
 249                 s->amend ? "HEAD^" : "HEAD",
 250                 NULL
 251         };
 252
 253         sprintf(summary_limit, "%d", wt_status_submodule_summary);
 254         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 255
 256         memset(&sm_summary, 0, sizeof(sm_summary));
 257         sm_summary.argv = argv;
 258         sm_summary.env = env;
 259         sm_summary.git_cmd = 1;
 260         sm_summary.no_stdin = 1;
 261         fflush(s->fp);
 262         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 263         run_command(&sm_summary);
 264 }
 265
 266 static void wt_status_print_untracked(struct wt_status *s)
 267 {
 268         struct dir_struct dir;
 269         int i;
 270         int shown_header = 0;
 271         struct strbuf buf;
 272
 273         strbuf_init(&buf, 0);
 274         memset(&dir, 0, sizeof(dir));
 275
 276         if (!s->untracked) {
 277                 dir.show_other_directories = 1;
 278                 dir.hide_empty_directories = 1;
 279         }
 280         setup_standard_excludes(&dir);
 281
 282         read_directory(&dir, ".", "", 0, NULL);
 283         for(i = 0; i < dir.nr; i++) {
 284                 /* check for matching entry, which is unmerged; lifted from
 285                  * builtin-ls-files:show_other_files */
 286                 struct dir_entry *ent = dir.entries[i];
 287                 int pos = cache_name_pos(ent->name, ent->len);
 288                 struct cache_entry *ce;
 289                 if (0 <= pos)
 290                         die("bug in wt_status_print_untracked");
 291                 pos = -pos - 1;
 292                 if (pos < active_nr) {
 293                         ce = active_cache[pos];
 294                         if (ce_namelen(ce) == ent->len &&
 295                             !memcmp(ce->name, ent->name, ent->len))
 296                                 continue;
 297                 }
 298                 if (!shown_header) {
 299                         s->workdir_untracked = 1;
 300                         wt_status_print_untracked_header(s);
 301                         shown_header = 1;
 302                 }
 303                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 304                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 305                                 quote_path(ent->name, ent->len,
 306                                         &buf, s->prefix));
 307         }
 308         strbuf_release(&buf);
 309 }
 310
 311 static void wt_status_print_verbose(struct wt_status *s)
 312 {
 313         struct rev_info rev;
 314
 315         init_revisions(&rev, NULL);
 316         setup_revisions(0, NULL, &rev, s->reference);
 317         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 318         rev.diffopt.detect_rename = 1;
 319         rev.diffopt.file = s->fp;
 320         rev.diffopt.close_file = 0;
 321         run_diff_index(&rev, 1);
 322 }
 323
 324 static void wt_status_print_tracking(struct wt_status *s)
 325 {
 326         struct strbuf sb = STRBUF_INIT;
 327         const char *cp, *ep;
 328         struct branch *branch;
 329
 330         assert(s->branch && !s->is_initial);
 331         if (prefixcmp(s->branch, "refs/heads/"))
 332                 return;
 333         branch = branch_get(s->branch + 11);
 334         if (!format_tracking_info(branch, &sb))
 335                 return;
 336
 337         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 338                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
 339                                  "# %.*s", (int)(ep - cp), cp);
 340         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 341 }
 342
 343 void wt_status_print(struct wt_status *s)
 344 {
 345         unsigned char sha1[20];
 346         const char *branch_color = color(WT_STATUS_HEADER);
 347
 348         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 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                         branch_color = color(WT_STATUS_NOBRANCH);
 357                         on_what = "Not currently on any branch.";
 358                 }
 359                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "# ");
 360                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 361                 if (!s->is_initial)
 362                         wt_status_print_tracking(s);
 363         }
 364
 365         if (s->is_initial) {
 366                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 367                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 368                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 369                 wt_status_print_initial(s);
 370         }
 371         else {
 372                 wt_status_print_updated(s);
 373         }
 374
 375         wt_status_print_changed(s);
 376         if (wt_status_submodule_summary)
 377                 wt_status_print_submodule_summary(s);
 378         if (show_untracked_files)
 379                 wt_status_print_untracked(s);
 380         else if (s->commitable)
 381                  fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 382
 383         if (s->verbose && !s->is_initial)
 384                 wt_status_print_verbose(s);
 385         if (!s->commitable) {
 386                 if (s->amend)
 387                         fprintf(s->fp, "# No changes\n");
 388                 else if (s->nowarn)
 389                         ; /* nothing */
 390                 else if (s->workdir_dirty)
 391                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 392                 else if (s->workdir_untracked)
 393                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 394                 else if (s->is_initial)
 395                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 396                 else if (!show_untracked_files)
 397                         printf("nothing to commit (use -u to show untracked files)\n");
 398                 else
 399                         printf("nothing to commit (working directory clean)\n");
 400         }
 401 }
 402
 403 int git_status_config(const char *k, const char *v, void *cb)
 404 {
 405         if (!strcmp(k, "status.submodulesummary")) {
 406                 int is_bool;
 407                 wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
 408                 if (is_bool && wt_status_submodule_summary)
 409                         wt_status_submodule_summary = -1;
 410                 return 0;
 411         }
 412         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 413                 wt_status_use_color = git_config_colorbool(k, v, -1);
 414                 return 0;
 415         }
 416         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 417                 int slot = parse_status_slot(k, 13);
 418                 if (!v)
 419                         return config_error_nonbool(k);
 420                 color_parse(v, k, wt_status_colors[slot]);
 421                 return 0;
 422         }
 423         if (!strcmp(k, "status.relativepaths")) {
 424                 wt_status_relative_paths = git_config_bool(k, v);
 425                 return 0;
 426         }
 427         if (!strcmp(k, "status.showuntrackedfiles")) {
 428                 if (!v)
 429                         return config_error_nonbool(k);
 430                 else if (!strcmp(v, "no"))
 431                         show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 432                 else if (!strcmp(v, "normal"))
 433                         show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 434                 else if (!strcmp(v, "all"))
 435                         show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 436                 else
 437                         return error("Invalid untracked files mode '%s'", v);
 438                 return 0;
 439         }
 440         return git_color_default_config(k, v, cb);
 441 }