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 }