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
  13 int wt_status_relative_paths = 1;
  14 int wt_status_use_color = -1;
  15 int wt_status_submodule_summary;
  16 static char wt_status_colors[][COLOR_MAXLEN] = {
  17         "",         /* WT_STATUS_HEADER: normal */
  18         "\033[32m", /* WT_STATUS_UPDATED: green */
  19         "\033[31m", /* WT_STATUS_CHANGED: red */
  20         "\033[31m", /* WT_STATUS_UNTRACKED: red */
  21         "\033[31m", /* WT_STATUS_NOBRANCH: red */
  22 };
  23
  24 static const char use_add_msg[] =
  25 "use \"git add <file>...\" to update what will be committed";
  26 static const char use_add_rm_msg[] =
  27 "use \"git add/rm <file>...\" to update what will be committed";
  28 static const char use_add_to_include_msg[] =
  29 "use \"git add <file>...\" to include in what will be committed";
  30 enum untracked_status_type show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  31
  32 static int parse_status_slot(const char *var, int offset)
  33 {
  34         if (!strcasecmp(var+offset, "header"))
  35                 return WT_STATUS_HEADER;
  36         if (!strcasecmp(var+offset, "updated")
  37                 || !strcasecmp(var+offset, "added"))
  38                 return WT_STATUS_UPDATED;
  39         if (!strcasecmp(var+offset, "changed"))
  40                 return WT_STATUS_CHANGED;
  41         if (!strcasecmp(var+offset, "untracked"))
  42                 return WT_STATUS_UNTRACKED;
  43         if (!strcasecmp(var+offset, "nobranch"))
  44                 return WT_STATUS_NOBRANCH;
  45         die("bad config variable '%s'", var);
  46 }
  47
  48 static const char* color(int slot)
  49 {
  50         return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
  51 }
  52
  53 void wt_status_prepare(struct wt_status *s)
  54 {
  55         unsigned char sha1[20];
  56         const char *head;
  57
  58         memset(s, 0, sizeof(*s));
  59         head = resolve_ref("HEAD", sha1, 0, NULL);
  60         s->branch = head ? xstrdup(head) : NULL;
  61         s->reference = "HEAD";
  62         s->fp = stdout;
  63         s->index_file = get_index_file();
  64 }
  65
  66 static void wt_status_print_cached_header(struct wt_status *s)
  67 {
  68         const char *c = color(WT_STATUS_HEADER);
  69         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  70         if (!s->is_initial) {
  71                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  72         } else {
  73                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  74         }
  75         color_fprintf_ln(s->fp, c, "#");
  76 }
  77
  78 static void wt_status_print_header(struct wt_status *s,
  79                                    const char *main, const char *sub)
  80 {
  81         const char *c = color(WT_STATUS_HEADER);
  82         color_fprintf_ln(s->fp, c, "# %s:", main);
  83         color_fprintf_ln(s->fp, c, "#   (%s)", sub);
  84         color_fprintf_ln(s->fp, c, "#");
  85 }
  86
  87 static void wt_status_print_trailer(struct wt_status *s)
  88 {
  89         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
  90 }
  91
  92 #define quote_path quote_path_relative
  93
  94 static void wt_status_print_filepair(struct wt_status *s,
  95                                      int t, struct diff_filepair *p)
  96 {
  97         const char *c = color(t);
  98         const char *one, *two;
  99         struct strbuf onebuf, twobuf;
 100
 101         strbuf_init(&onebuf, 0);
 102         strbuf_init(&twobuf, 0);
 103         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
 104         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
 105
 106         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 107         switch (p->status) {
 108         case DIFF_STATUS_ADDED:
 109                 color_fprintf(s->fp, c, "new file:   %s", one);
 110                 break;
 111         case DIFF_STATUS_COPIED:
 112                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 113                 break;
 114         case DIFF_STATUS_DELETED:
 115                 color_fprintf(s->fp, c, "deleted:    %s", one);
 116                 break;
 117         case DIFF_STATUS_MODIFIED:
 118                 color_fprintf(s->fp, c, "modified:   %s", one);
 119                 break;
 120         case DIFF_STATUS_RENAMED:
 121                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 122                 break;
 123         case DIFF_STATUS_TYPE_CHANGED:
 124                 color_fprintf(s->fp, c, "typechange: %s", one);
 125                 break;
 126         case DIFF_STATUS_UNKNOWN:
 127                 color_fprintf(s->fp, c, "unknown:    %s", one);
 128                 break;
 129         case DIFF_STATUS_UNMERGED:
 130                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 131                 break;
 132         default:
 133                 die("bug: unhandled diff status %c", p->status);
 134         }
 135         fprintf(s->fp, "\n");
 136         strbuf_release(&onebuf);
 137         strbuf_release(&twobuf);
 138 }
 139
 140 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 141                 struct diff_options *options,
 142                 void *data)
 143 {
 144         struct wt_status *s = data;
 145         int shown_header = 0;
 146         int i;
 147         for (i = 0; i < q->nr; i++) {
 148                 if (q->queue[i]->status == 'U')
 149                         continue;
 150                 if (!shown_header) {
 151                         wt_status_print_cached_header(s);
 152                         s->commitable = 1;
 153                         shown_header = 1;
 154                 }
 155                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 156         }
 157         if (shown_header)
 158                 wt_status_print_trailer(s);
 159 }
 160
 161 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 162                         struct diff_options *options,
 163                         void *data)
 164 {
 165         struct wt_status *s = data;
 166         int i;
 167         if (q->nr) {
 168                 const char *msg = use_add_msg;
 169                 s->workdir_dirty = 1;
 170                 for (i = 0; i < q->nr; i++)
 171                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 172                                 msg = use_add_rm_msg;
 173                                 break;
 174                         }
 175                 wt_status_print_header(s, "Changed but not updated", msg);
 176         }
 177         for (i = 0; i < q->nr; i++)
 178                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 179         if (q->nr)
 180                 wt_status_print_trailer(s);
 181 }
 182
 183 static void wt_status_print_initial(struct wt_status *s)
 184 {
 185         int i;
 186         struct strbuf buf;
 187
 188         strbuf_init(&buf, 0);
 189         if (active_nr) {
 190                 s->commitable = 1;
 191                 wt_status_print_cached_header(s);
 192         }
 193         for (i = 0; i < active_nr; i++) {
 194                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 195                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 196                                 quote_path(active_cache[i]->name, -1,
 197                                            &buf, s->prefix));
 198         }
 199         if (active_nr)
 200                 wt_status_print_trailer(s);
 201         strbuf_release(&buf);
 202 }
 203
 204 static void wt_status_print_updated(struct wt_status *s)
 205 {
 206         struct rev_info rev;
 207         init_revisions(&rev, NULL);
 208         setup_revisions(0, NULL, &rev, s->reference);
 209         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 210         rev.diffopt.format_callback = wt_status_print_updated_cb;
 211         rev.diffopt.format_callback_data = s;
 212         rev.diffopt.detect_rename = 1;
 213         rev.diffopt.rename_limit = 200;
 214         rev.diffopt.break_opt = 0;
 215         run_diff_index(&rev, 1);
 216 }
 217
 218 static void wt_status_print_changed(struct wt_status *s)
 219 {
 220         struct rev_info rev;
 221         init_revisions(&rev, "");
 222         setup_revisions(0, NULL, &rev, NULL);
 223         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 224         rev.diffopt.format_callback = wt_status_print_changed_cb;
 225         rev.diffopt.format_callback_data = s;
 226         run_diff_files(&rev, 0);
 227 }
 228
 229 static void wt_status_print_submodule_summary(struct wt_status *s)
 230 {
 231         struct child_process sm_summary;
 232         char summary_limit[64];
 233         char index[PATH_MAX];
 234         const char *env[] = { index, NULL };
 235         const char *argv[] = {
 236                 "submodule",
 237                 "summary",
 238                 "--cached",
 239                 "--for-status",
 240                 "--summary-limit",
 241                 summary_limit,
 242                 s->amend ? "HEAD^" : "HEAD",
 243                 NULL
 244         };
 245
 246         sprintf(summary_limit, "%d", wt_status_submodule_summary);
 247         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 248
 249         memset(&sm_summary, 0, sizeof(sm_summary));
 250         sm_summary.argv = argv;
 251         sm_summary.env = env;
 252         sm_summary.git_cmd = 1;
 253         sm_summary.no_stdin = 1;
 254         fflush(s->fp);
 255         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 256         run_command(&sm_summary);
 257 }
 258
 259 static void wt_status_print_untracked(struct wt_status *s)
 260 {
 261         struct dir_struct dir;
 262         int i;
 263         int shown_header = 0;
 264         struct strbuf buf;
 265
 266         strbuf_init(&buf, 0);
 267         memset(&dir, 0, sizeof(dir));
 268
 269         if (!s->untracked) {
 270                 dir.show_other_directories = 1;
 271                 dir.hide_empty_directories = 1;
 272         }
 273         setup_standard_excludes(&dir);
 274
 275         read_directory(&dir, ".", "", 0, NULL);
 276         for(i = 0; i < dir.nr; i++) {
 277                 /* check for matching entry, which is unmerged; lifted from
 278                  * builtin-ls-files:show_other_files */
 279                 struct dir_entry *ent = dir.entries[i];
 280                 int pos = cache_name_pos(ent->name, ent->len);
 281                 struct cache_entry *ce;
 282                 if (0 <= pos)
 283                         die("bug in wt_status_print_untracked");
 284                 pos = -pos - 1;
 285                 if (pos < active_nr) {
 286                         ce = active_cache[pos];
 287                         if (ce_namelen(ce) == ent->len &&
 288                             !memcmp(ce->name, ent->name, ent->len))
 289                                 continue;
 290                 }
 291                 if (!shown_header) {
 292                         s->workdir_untracked = 1;
 293                         wt_status_print_header(s, "Untracked files",
 294                                                use_add_to_include_msg);
 295                         shown_header = 1;
 296                 }
 297                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 298                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 299                                 quote_path(ent->name, ent->len,
 300                                         &buf, s->prefix));
 301         }
 302         strbuf_release(&buf);
 303 }
 304
 305 static void wt_status_print_verbose(struct wt_status *s)
 306 {
 307         struct rev_info rev;
 308
 309         init_revisions(&rev, NULL);
 310         setup_revisions(0, NULL, &rev, s->reference);
 311         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 312         rev.diffopt.detect_rename = 1;
 313         rev.diffopt.file = s->fp;
 314         rev.diffopt.close_file = 0;
 315         run_diff_index(&rev, 1);
 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         }
 337
 338         if (s->is_initial) {
 339                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 340                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 341                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 342                 wt_status_print_initial(s);
 343         }
 344         else {
 345                 wt_status_print_updated(s);
 346         }
 347
 348         wt_status_print_changed(s);
 349         if (wt_status_submodule_summary)
 350                 wt_status_print_submodule_summary(s);
 351         if (show_untracked_files)
 352                 wt_status_print_untracked(s);
 353         else if (s->commitable)
 354                  fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 355
 356         if (s->verbose && !s->is_initial)
 357                 wt_status_print_verbose(s);
 358         if (!s->commitable) {
 359                 if (s->amend)
 360                         fprintf(s->fp, "# No changes\n");
 361                 else if (s->nowarn)
 362                         ; /* nothing */
 363                 else if (s->workdir_dirty)
 364                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 365                 else if (s->workdir_untracked)
 366                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 367                 else if (s->is_initial)
 368                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 369                 else if (!show_untracked_files)
 370                         printf("nothing to commit (use -u to show untracked files)\n");
 371                 else
 372                         printf("nothing to commit (working directory clean)\n");
 373         }
 374 }
 375
 376 int git_status_config(const char *k, const char *v, void *cb)
 377 {
 378         if (!strcmp(k, "status.submodulesummary")) {
 379                 int is_bool;
 380                 wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
 381                 if (is_bool && wt_status_submodule_summary)
 382                         wt_status_submodule_summary = -1;
 383                 return 0;
 384         }
 385         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 386                 wt_status_use_color = git_config_colorbool(k, v, -1);
 387                 return 0;
 388         }
 389         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 390                 int slot = parse_status_slot(k, 13);
 391                 if (!v)
 392                         return config_error_nonbool(k);
 393                 color_parse(v, k, wt_status_colors[slot]);
 394                 return 0;
 395         }
 396         if (!strcmp(k, "status.relativepaths")) {
 397                 wt_status_relative_paths = git_config_bool(k, v);
 398                 return 0;
 399         }
 400         if (!strcmp(k, "status.showuntrackedfiles")) {
 401                 if (!v)
 402                         return config_error_nonbool(v);
 403                 else if (!strcmp(v, "no"))
 404                         show_untracked_files = SHOW_NO_UNTRACKED_FILES;
 405                 else if (!strcmp(v, "normal"))
 406                         show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 407                 else if (!strcmp(v, "all"))
 408                         show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
 409                 else
 410                         return error("Invalid untracked files mode '%s'", v);
 411                 return 0;
 412         }
 413         return git_color_default_config(k, v, cb);
 414 }