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 = 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_initial(struct wt_status *s)
 189 {
 190         int i;
 191         struct strbuf buf = STRBUF_INIT;
 192
 193         if (active_nr) {
 194                 s->commitable = 1;
 195                 wt_status_print_cached_header(s);
 196         }
 197         for (i = 0; i < active_nr; i++) {
 198                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 199                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 200                                 quote_path(active_cache[i]->name, -1,
 201                                            &buf, s->prefix));
 202         }
 203         if (active_nr)
 204                 wt_status_print_trailer(s);
 205         strbuf_release(&buf);
 206 }
 207
 208 static void wt_status_print_updated(struct wt_status *s)
 209 {
 210         struct rev_info rev;
 211         init_revisions(&rev, NULL);
 212         setup_revisions(0, NULL, &rev, s->reference);
 213         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 214         rev.diffopt.format_callback = wt_status_print_updated_cb;
 215         rev.diffopt.format_callback_data = s;
 216         rev.diffopt.detect_rename = 1;
 217         rev.diffopt.rename_limit = 200;
 218         rev.diffopt.break_opt = 0;
 219         run_diff_index(&rev, 1);
 220 }
 221
 222 static void wt_status_print_changed(struct wt_status *s)
 223 {
 224         struct rev_info rev;
 225         init_revisions(&rev, "");
 226         setup_revisions(0, NULL, &rev, NULL);
 227         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 228         rev.diffopt.format_callback = wt_status_print_changed_cb;
 229         rev.diffopt.format_callback_data = s;
 230         run_diff_files(&rev, 0);
 231 }
 232
 233 static void wt_status_print_submodule_summary(struct wt_status *s)
 234 {
 235         struct child_process sm_summary;
 236         char summary_limit[64];
 237         char index[PATH_MAX];
 238         const char *env[] = { index, NULL };
 239         const char *argv[] = {
 240                 "submodule",
 241                 "summary",
 242                 "--cached",
 243                 "--for-status",
 244                 "--summary-limit",
 245                 summary_limit,
 246                 s->amend ? "HEAD^" : "HEAD",
 247                 NULL
 248         };
 249
 250         sprintf(summary_limit, "%d", wt_status_submodule_summary);
 251         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 252
 253         memset(&sm_summary, 0, sizeof(sm_summary));
 254         sm_summary.argv = argv;
 255         sm_summary.env = env;
 256         sm_summary.git_cmd = 1;
 257         sm_summary.no_stdin = 1;
 258         fflush(s->fp);
 259         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 260         run_command(&sm_summary);
 261 }
 262
 263 static void wt_status_print_untracked(struct wt_status *s)
 264 {
 265         struct dir_struct dir;
 266         int i;
 267         int shown_header = 0;
 268         struct strbuf buf = STRBUF_INIT;
 269
 270         memset(&dir, 0, sizeof(dir));
 271
 272         if (!s->untracked) {
 273                 dir.show_other_directories = 1;
 274                 dir.hide_empty_directories = 1;
 275         }
 276         setup_standard_excludes(&dir);
 277
 278         read_directory(&dir, ".", "", 0, NULL);
 279         for(i = 0; i < dir.nr; i++) {
 280                 /* check for matching entry, which is unmerged; lifted from
 281                  * builtin-ls-files:show_other_files */
 282                 struct dir_entry *ent = dir.entries[i];
 283                 int pos = cache_name_pos(ent->name, ent->len);
 284                 struct cache_entry *ce;
 285                 if (0 <= pos)
 286                         die("bug in wt_status_print_untracked");
 287                 pos = -pos - 1;
 288                 if (pos < active_nr) {
 289                         ce = active_cache[pos];
 290                         if (ce_namelen(ce) == ent->len &&
 291                             !memcmp(ce->name, ent->name, ent->len))
 292                                 continue;
 293                 }
 294                 if (!shown_header) {
 295                         s->workdir_untracked = 1;
 296                         wt_status_print_untracked_header(s);
 297                         shown_header = 1;
 298                 }
 299                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 300                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 301                                 quote_path(ent->name, ent->len,
 302                                         &buf, s->prefix));
 303         }
 304         strbuf_release(&buf);
 305 }
 306
 307 static void wt_status_print_verbose(struct wt_status *s)
 308 {
 309         struct rev_info rev;
 310
 311         init_revisions(&rev, NULL);
 312         setup_revisions(0, NULL, &rev, s->reference);
 313         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 314         rev.diffopt.detect_rename = 1;
 315         rev.diffopt.file = s->fp;
 316         rev.diffopt.close_file = 0;
 317         run_diff_index(&rev, 1);
 318 }
 319
 320 static void wt_status_print_tracking(struct wt_status *s)
 321 {
 322         struct strbuf sb = STRBUF_INIT;
 323         const char *cp, *ep;
 324         struct branch *branch;
 325
 326         assert(s->branch && !s->is_initial);
 327         if (prefixcmp(s->branch, "refs/heads/"))
 328                 return;
 329         branch = branch_get(s->branch + 11);
 330         if (!format_tracking_info(branch, &sb))
 331                 return;
 332
 333         for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 334                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
 335                                  "# %.*s", (int)(ep - cp), cp);
 336         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 337 }
 338
 339 void wt_status_print(struct wt_status *s)
 340 {
 341         unsigned char sha1[20];
 342         const char *branch_color = color(WT_STATUS_HEADER);
 343
 344         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 345         if (s->branch) {
 346                 const char *on_what = "On branch ";
 347                 const char *branch_name = s->branch;
 348                 if (!prefixcmp(branch_name, "refs/heads/"))
 349                         branch_name += 11;
 350                 else if (!strcmp(branch_name, "HEAD")) {
 351                         branch_name = "";
 352                         branch_color = color(WT_STATUS_NOBRANCH);
 353                         on_what = "Not currently on any branch.";
 354                 }
 355                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "# ");
 356                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 357                 if (!s->is_initial)
 358                         wt_status_print_tracking(s);
 359         }
 360
 361         if (s->is_initial) {
 362                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 363                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 364                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 365                 wt_status_print_initial(s);
 366         }
 367         else {
 368                 wt_status_print_updated(s);
 369         }
 370
 371         wt_status_print_changed(s);
 372         if (wt_status_submodule_summary)
 373                 wt_status_print_submodule_summary(s);
 374         if (show_untracked_files)
 375                 wt_status_print_untracked(s);
 376         else if (s->commitable)
 377                  fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 378
 379         if (s->verbose && !s->is_initial)
 380                 wt_status_print_verbose(s);
 381         if (!s->commitable) {
 382                 if (s->amend)
 383                         fprintf(s->fp, "# No changes\n");
 384                 else if (s->nowarn)
 385                         ; /* nothing */
 386                 else if (s->workdir_dirty)
 387                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 388                 else if (s->workdir_untracked)
 389                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 390                 else if (s->is_initial)
 391                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 392                 else if (!show_untracked_files)
 393                         printf("nothing to commit (use -u to show untracked files)\n");
 394                 else
 395                         printf("nothing to commit (working directory clean)\n");
 396         }
 397 }
 398
 399 int git_status_config(const char *k, const char *v, void *cb)
 400 {
 401         if (!strcmp(k, "status.submodulesummary")) {
 402                 int is_bool;
 403                 wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
 404                 if (is_bool && wt_status_submodule_summary)
 405                         wt_status_submodule_summary = -1;
 406                 return 0;
 407         }
 408         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 409                 wt_status_use_color = git_config_colorbool(k, v, -1);
 410                 return 0;
 411         }
 412         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 413                 int slot = parse_status_slot(k, 13);
 414                 if (!v)
 415                         return config_error_nonbool(k);
 416                 color_parse(v, k, wt_status_colors[slot]);
 417                 return 0;
 418         }
 419         if (!strcmp(k, "status.relativepaths")) {
 420                 wt_status_relative_paths = git_config_bool(k, v);
 421                 return 0;
 422         }
 423         if (!strcmp(k, "status.showuntrackedfiles")) {
 424                 if (!v)
 425                         return config_error_nonbool(k);
 426                 else if (!strcmp(v, "no"))
 427                         show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 428                 else if (!strcmp(v, "normal"))
 429                         show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 430                 else if (!strcmp(v, "all"))
 431                         show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 432                 else
 433                         return error("Invalid untracked files mode '%s'", v);
 434                 return 0;
 435         }
 436         return git_color_default_config(k, v, cb);
 437 }