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 };
  22
  23 static const char use_add_msg[] =
  24 "use \"git add <file>...\" to update what will be committed";
  25 static const char use_add_rm_msg[] =
  26 "use \"git add/rm <file>...\" to update what will be committed";
  27 static const char use_add_to_include_msg[] =
  28 "use \"git add <file>...\" to include in what will be committed";
  29
  30 static int parse_status_slot(const char *var, int offset)
  31 {
  32         if (!strcasecmp(var+offset, "header"))
  33                 return WT_STATUS_HEADER;
  34         if (!strcasecmp(var+offset, "updated")
  35                 || !strcasecmp(var+offset, "added"))
  36                 return WT_STATUS_UPDATED;
  37         if (!strcasecmp(var+offset, "changed"))
  38                 return WT_STATUS_CHANGED;
  39         if (!strcasecmp(var+offset, "untracked"))
  40                 return WT_STATUS_UNTRACKED;
  41         die("bad config variable '%s'", var);
  42 }
  43
  44 static const char* color(int slot)
  45 {
  46         return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
  47 }
  48
  49 void wt_status_prepare(struct wt_status *s)
  50 {
  51         unsigned char sha1[20];
  52         const char *head;
  53
  54         memset(s, 0, sizeof(*s));
  55         head = resolve_ref("HEAD", sha1, 0, NULL);
  56         s->branch = head ? xstrdup(head) : NULL;
  57         s->reference = "HEAD";
  58         s->fp = stdout;
  59         s->index_file = get_index_file();
  60 }
  61
  62 static void wt_status_print_cached_header(struct wt_status *s)
  63 {
  64         const char *c = color(WT_STATUS_HEADER);
  65         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  66         if (!s->is_initial) {
  67                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  68         } else {
  69                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  70         }
  71         color_fprintf_ln(s->fp, c, "#");
  72 }
  73
  74 static void wt_status_print_header(struct wt_status *s,
  75                                    const char *main, const char *sub)
  76 {
  77         const char *c = color(WT_STATUS_HEADER);
  78         color_fprintf_ln(s->fp, c, "# %s:", main);
  79         color_fprintf_ln(s->fp, c, "#   (%s)", sub);
  80         color_fprintf_ln(s->fp, c, "#");
  81 }
  82
  83 static void wt_status_print_trailer(struct wt_status *s)
  84 {
  85         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
  86 }
  87
  88 #define quote_path quote_path_relative
  89
  90 static void wt_status_print_filepair(struct wt_status *s,
  91                                      int t, struct diff_filepair *p)
  92 {
  93         const char *c = color(t);
  94         const char *one, *two;
  95         struct strbuf onebuf, twobuf;
  96
  97         strbuf_init(&onebuf, 0);
  98         strbuf_init(&twobuf, 0);
  99         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
 100         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
 101
 102         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 103         switch (p->status) {
 104         case DIFF_STATUS_ADDED:
 105                 color_fprintf(s->fp, c, "new file:   %s", one);
 106                 break;
 107         case DIFF_STATUS_COPIED:
 108                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 109                 break;
 110         case DIFF_STATUS_DELETED:
 111                 color_fprintf(s->fp, c, "deleted:    %s", one);
 112                 break;
 113         case DIFF_STATUS_MODIFIED:
 114                 color_fprintf(s->fp, c, "modified:   %s", one);
 115                 break;
 116         case DIFF_STATUS_RENAMED:
 117                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 118                 break;
 119         case DIFF_STATUS_TYPE_CHANGED:
 120                 color_fprintf(s->fp, c, "typechange: %s", one);
 121                 break;
 122         case DIFF_STATUS_UNKNOWN:
 123                 color_fprintf(s->fp, c, "unknown:    %s", one);
 124                 break;
 125         case DIFF_STATUS_UNMERGED:
 126                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 127                 break;
 128         default:
 129                 die("bug: unhandled diff status %c", p->status);
 130         }
 131         fprintf(s->fp, "\n");
 132         strbuf_release(&onebuf);
 133         strbuf_release(&twobuf);
 134 }
 135
 136 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 137                 struct diff_options *options,
 138                 void *data)
 139 {
 140         struct wt_status *s = data;
 141         int shown_header = 0;
 142         int i;
 143         for (i = 0; i < q->nr; i++) {
 144                 if (q->queue[i]->status == 'U')
 145                         continue;
 146                 if (!shown_header) {
 147                         wt_status_print_cached_header(s);
 148                         s->commitable = 1;
 149                         shown_header = 1;
 150                 }
 151                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 152         }
 153         if (shown_header)
 154                 wt_status_print_trailer(s);
 155 }
 156
 157 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 158                         struct diff_options *options,
 159                         void *data)
 160 {
 161         struct wt_status *s = data;
 162         int i;
 163         if (q->nr) {
 164                 const char *msg = use_add_msg;
 165                 s->workdir_dirty = 1;
 166                 for (i = 0; i < q->nr; i++)
 167                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 168                                 msg = use_add_rm_msg;
 169                                 break;
 170                         }
 171                 wt_status_print_header(s, "Changed but not updated", msg);
 172         }
 173         for (i = 0; i < q->nr; i++)
 174                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 175         if (q->nr)
 176                 wt_status_print_trailer(s);
 177 }
 178
 179 static void wt_status_print_initial(struct wt_status *s)
 180 {
 181         int i;
 182         struct strbuf buf;
 183
 184         strbuf_init(&buf, 0);
 185         if (active_nr) {
 186                 s->commitable = 1;
 187                 wt_status_print_cached_header(s);
 188         }
 189         for (i = 0; i < active_nr; i++) {
 190                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 191                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 192                                 quote_path(active_cache[i]->name, -1,
 193                                            &buf, s->prefix));
 194         }
 195         if (active_nr)
 196                 wt_status_print_trailer(s);
 197         strbuf_release(&buf);
 198 }
 199
 200 static void wt_status_print_updated(struct wt_status *s)
 201 {
 202         struct rev_info rev;
 203         init_revisions(&rev, NULL);
 204         setup_revisions(0, NULL, &rev, s->reference);
 205         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 206         rev.diffopt.format_callback = wt_status_print_updated_cb;
 207         rev.diffopt.format_callback_data = s;
 208         rev.diffopt.detect_rename = 1;
 209         rev.diffopt.rename_limit = 200;
 210         rev.diffopt.break_opt = 0;
 211         run_diff_index(&rev, 1);
 212 }
 213
 214 static void wt_status_print_changed(struct wt_status *s)
 215 {
 216         struct rev_info rev;
 217         init_revisions(&rev, "");
 218         setup_revisions(0, NULL, &rev, NULL);
 219         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 220         rev.diffopt.format_callback = wt_status_print_changed_cb;
 221         rev.diffopt.format_callback_data = s;
 222         run_diff_files(&rev, 0);
 223 }
 224
 225 static void wt_status_print_submodule_summary(struct wt_status *s)
 226 {
 227         struct child_process sm_summary;
 228         char summary_limit[64];
 229         char index[PATH_MAX];
 230         const char *env[] = { index, NULL };
 231         const char *argv[] = {
 232                 "submodule",
 233                 "summary",
 234                 "--cached",
 235                 "--for-status",
 236                 "--summary-limit",
 237                 summary_limit,
 238                 s->amend ? "HEAD^" : "HEAD",
 239                 NULL
 240         };
 241
 242         sprintf(summary_limit, "%d", wt_status_submodule_summary);
 243         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 244
 245         memset(&sm_summary, 0, sizeof(sm_summary));
 246         sm_summary.argv = argv;
 247         sm_summary.env = env;
 248         sm_summary.git_cmd = 1;
 249         sm_summary.no_stdin = 1;
 250         fflush(s->fp);
 251         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 252         run_command(&sm_summary);
 253 }
 254
 255 static void wt_status_print_untracked(struct wt_status *s)
 256 {
 257         struct dir_struct dir;
 258         int i;
 259         int shown_header = 0;
 260         struct strbuf buf;
 261
 262         strbuf_init(&buf, 0);
 263         memset(&dir, 0, sizeof(dir));
 264
 265         if (!s->untracked) {
 266                 dir.show_other_directories = 1;
 267                 dir.hide_empty_directories = 1;
 268         }
 269         setup_standard_excludes(&dir);
 270
 271         read_directory(&dir, ".", "", 0, NULL);
 272         for(i = 0; i < dir.nr; i++) {
 273                 /* check for matching entry, which is unmerged; lifted from
 274                  * builtin-ls-files:show_other_files */
 275                 struct dir_entry *ent = dir.entries[i];
 276                 int pos = cache_name_pos(ent->name, ent->len);
 277                 struct cache_entry *ce;
 278                 if (0 <= pos)
 279                         die("bug in wt_status_print_untracked");
 280                 pos = -pos - 1;
 281                 if (pos < active_nr) {
 282                         ce = active_cache[pos];
 283                         if (ce_namelen(ce) == ent->len &&
 284                             !memcmp(ce->name, ent->name, ent->len))
 285                                 continue;
 286                 }
 287                 if (!shown_header) {
 288                         s->workdir_untracked = 1;
 289                         wt_status_print_header(s, "Untracked files",
 290                                                use_add_to_include_msg);
 291                         shown_header = 1;
 292                 }
 293                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 294                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 295                                 quote_path(ent->name, ent->len,
 296                                         &buf, s->prefix));
 297         }
 298         strbuf_release(&buf);
 299 }
 300
 301 static void wt_status_print_verbose(struct wt_status *s)
 302 {
 303         struct rev_info rev;
 304
 305         init_revisions(&rev, NULL);
 306         setup_revisions(0, NULL, &rev, s->reference);
 307         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 308         rev.diffopt.detect_rename = 1;
 309         rev.diffopt.file = s->fp;
 310         rev.diffopt.close_file = 0;
 311         run_diff_index(&rev, 1);
 312 }
 313
 314 void wt_status_print(struct wt_status *s)
 315 {
 316         unsigned char sha1[20];
 317         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 318
 319         if (s->branch) {
 320                 const char *on_what = "On branch ";
 321                 const char *branch_name = s->branch;
 322                 if (!prefixcmp(branch_name, "refs/heads/"))
 323                         branch_name += 11;
 324                 else if (!strcmp(branch_name, "HEAD")) {
 325                         branch_name = "";
 326                         on_what = "Not currently on any branch.";
 327                 }
 328                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
 329                         "# %s%s", on_what, branch_name);
 330         }
 331
 332         if (s->is_initial) {
 333                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 334                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 335                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 336                 wt_status_print_initial(s);
 337         }
 338         else {
 339                 wt_status_print_updated(s);
 340         }
 341
 342         wt_status_print_changed(s);
 343         if (wt_status_submodule_summary)
 344                 wt_status_print_submodule_summary(s);
 345         wt_status_print_untracked(s);
 346
 347         if (s->verbose && !s->is_initial)
 348                 wt_status_print_verbose(s);
 349         if (!s->commitable) {
 350                 if (s->amend)
 351                         fprintf(s->fp, "# No changes\n");
 352                 else if (s->nowarn)
 353                         ; /* nothing */
 354                 else if (s->workdir_dirty)
 355                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 356                 else if (s->workdir_untracked)
 357                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 358                 else if (s->is_initial)
 359                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 360                 else
 361                         printf("nothing to commit (working directory clean)\n");
 362         }
 363 }
 364
 365 int git_status_config(const char *k, const char *v)
 366 {
 367         if (!strcmp(k, "status.submodulesummary")) {
 368                 int is_bool;
 369                 wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
 370                 if (is_bool && wt_status_submodule_summary)
 371                         wt_status_submodule_summary = -1;
 372                 return 0;
 373         }
 374         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 375                 wt_status_use_color = git_config_colorbool(k, v, -1);
 376                 return 0;
 377         }
 378         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 379                 int slot = parse_status_slot(k, 13);
 380                 if (!v)
 381                         return config_error_nonbool(k);
 382                 color_parse(v, k, wt_status_colors[slot]);
 383                 return 0;
 384         }
 385         if (!strcmp(k, "status.relativepaths")) {
 386                 wt_status_relative_paths = git_config_bool(k, v);
 387                 return 0;
 388         }
 389         return git_color_default_config(k, v);
 390 }