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
  31 static int parse_status_slot(const char *var, int offset)
  32 {
  33         if (!strcasecmp(var+offset, "header"))
  34                 return WT_STATUS_HEADER;
  35         if (!strcasecmp(var+offset, "updated")
  36                 || !strcasecmp(var+offset, "added"))
  37                 return WT_STATUS_UPDATED;
  38         if (!strcasecmp(var+offset, "changed"))
  39                 return WT_STATUS_CHANGED;
  40         if (!strcasecmp(var+offset, "untracked"))
  41                 return WT_STATUS_UNTRACKED;
  42         if (!strcasecmp(var+offset, "nobranch"))
  43                 return WT_STATUS_NOBRANCH;
  44         die("bad config variable '%s'", var);
  45 }
  46
  47 static const char* color(int slot)
  48 {
  49         return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
  50 }
  51
  52 void wt_status_prepare(struct wt_status *s)
  53 {
  54         unsigned char sha1[20];
  55         const char *head;
  56
  57         memset(s, 0, sizeof(*s));
  58         head = resolve_ref("HEAD", sha1, 0, NULL);
  59         s->branch = head ? xstrdup(head) : NULL;
  60         s->reference = "HEAD";
  61         s->fp = stdout;
  62         s->index_file = get_index_file();
  63 }
  64
  65 static void wt_status_print_cached_header(struct wt_status *s)
  66 {
  67         const char *c = color(WT_STATUS_HEADER);
  68         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  69         if (!s->is_initial) {
  70                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  71         } else {
  72                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  73         }
  74         color_fprintf_ln(s->fp, c, "#");
  75 }
  76
  77 static void wt_status_print_header(struct wt_status *s,
  78                                    const char *main, const char *sub)
  79 {
  80         const char *c = color(WT_STATUS_HEADER);
  81         color_fprintf_ln(s->fp, c, "# %s:", main);
  82         color_fprintf_ln(s->fp, c, "#   (%s)", sub);
  83         color_fprintf_ln(s->fp, c, "#");
  84 }
  85
  86 static void wt_status_print_trailer(struct wt_status *s)
  87 {
  88         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
  89 }
  90
  91 #define quote_path quote_path_relative
  92
  93 static void wt_status_print_filepair(struct wt_status *s,
  94                                      int t, struct diff_filepair *p)
  95 {
  96         const char *c = color(t);
  97         const char *one, *two;
  98         struct strbuf onebuf, twobuf;
  99
 100         strbuf_init(&onebuf, 0);
 101         strbuf_init(&twobuf, 0);
 102         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
 103         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
 104
 105         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 106         switch (p->status) {
 107         case DIFF_STATUS_ADDED:
 108                 color_fprintf(s->fp, c, "new file:   %s", one);
 109                 break;
 110         case DIFF_STATUS_COPIED:
 111                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 112                 break;
 113         case DIFF_STATUS_DELETED:
 114                 color_fprintf(s->fp, c, "deleted:    %s", one);
 115                 break;
 116         case DIFF_STATUS_MODIFIED:
 117                 color_fprintf(s->fp, c, "modified:   %s", one);
 118                 break;
 119         case DIFF_STATUS_RENAMED:
 120                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 121                 break;
 122         case DIFF_STATUS_TYPE_CHANGED:
 123                 color_fprintf(s->fp, c, "typechange: %s", one);
 124                 break;
 125         case DIFF_STATUS_UNKNOWN:
 126                 color_fprintf(s->fp, c, "unknown:    %s", one);
 127                 break;
 128         case DIFF_STATUS_UNMERGED:
 129                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 130                 break;
 131         default:
 132                 die("bug: unhandled diff status %c", p->status);
 133         }
 134         fprintf(s->fp, "\n");
 135         strbuf_release(&onebuf);
 136         strbuf_release(&twobuf);
 137 }
 138
 139 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 140                 struct diff_options *options,
 141                 void *data)
 142 {
 143         struct wt_status *s = data;
 144         int shown_header = 0;
 145         int i;
 146         for (i = 0; i < q->nr; i++) {
 147                 if (q->queue[i]->status == 'U')
 148                         continue;
 149                 if (!shown_header) {
 150                         wt_status_print_cached_header(s);
 151                         s->commitable = 1;
 152                         shown_header = 1;
 153                 }
 154                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 155         }
 156         if (shown_header)
 157                 wt_status_print_trailer(s);
 158 }
 159
 160 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 161                         struct diff_options *options,
 162                         void *data)
 163 {
 164         struct wt_status *s = data;
 165         int i;
 166         if (q->nr) {
 167                 const char *msg = use_add_msg;
 168                 s->workdir_dirty = 1;
 169                 for (i = 0; i < q->nr; i++)
 170                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 171                                 msg = use_add_rm_msg;
 172                                 break;
 173                         }
 174                 wt_status_print_header(s, "Changed but not updated", msg);
 175         }
 176         for (i = 0; i < q->nr; i++)
 177                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 178         if (q->nr)
 179                 wt_status_print_trailer(s);
 180 }
 181
 182 static void wt_status_print_initial(struct wt_status *s)
 183 {
 184         int i;
 185         struct strbuf buf;
 186
 187         strbuf_init(&buf, 0);
 188         if (active_nr) {
 189                 s->commitable = 1;
 190                 wt_status_print_cached_header(s);
 191         }
 192         for (i = 0; i < active_nr; i++) {
 193                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 194                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 195                                 quote_path(active_cache[i]->name, -1,
 196                                            &buf, s->prefix));
 197         }
 198         if (active_nr)
 199                 wt_status_print_trailer(s);
 200         strbuf_release(&buf);
 201 }
 202
 203 static void wt_status_print_updated(struct wt_status *s)
 204 {
 205         struct rev_info rev;
 206         init_revisions(&rev, NULL);
 207         setup_revisions(0, NULL, &rev, s->reference);
 208         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 209         rev.diffopt.format_callback = wt_status_print_updated_cb;
 210         rev.diffopt.format_callback_data = s;
 211         rev.diffopt.detect_rename = 1;
 212         rev.diffopt.rename_limit = 200;
 213         rev.diffopt.break_opt = 0;
 214         run_diff_index(&rev, 1);
 215 }
 216
 217 static void wt_status_print_changed(struct wt_status *s)
 218 {
 219         struct rev_info rev;
 220         init_revisions(&rev, "");
 221         setup_revisions(0, NULL, &rev, NULL);
 222         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 223         rev.diffopt.format_callback = wt_status_print_changed_cb;
 224         rev.diffopt.format_callback_data = s;
 225         run_diff_files(&rev, 0);
 226 }
 227
 228 static void wt_status_print_submodule_summary(struct wt_status *s)
 229 {
 230         struct child_process sm_summary;
 231         char summary_limit[64];
 232         char index[PATH_MAX];
 233         const char *env[] = { index, NULL };
 234         const char *argv[] = {
 235                 "submodule",
 236                 "summary",
 237                 "--cached",
 238                 "--for-status",
 239                 "--summary-limit",
 240                 summary_limit,
 241                 s->amend ? "HEAD^" : "HEAD",
 242                 NULL
 243         };
 244
 245         sprintf(summary_limit, "%d", wt_status_submodule_summary);
 246         snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 247
 248         memset(&sm_summary, 0, sizeof(sm_summary));
 249         sm_summary.argv = argv;
 250         sm_summary.env = env;
 251         sm_summary.git_cmd = 1;
 252         sm_summary.no_stdin = 1;
 253         fflush(s->fp);
 254         sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 255         run_command(&sm_summary);
 256 }
 257
 258 static void wt_status_print_untracked(struct wt_status *s)
 259 {
 260         struct dir_struct dir;
 261         int i;
 262         int shown_header = 0;
 263         struct strbuf buf;
 264
 265         strbuf_init(&buf, 0);
 266         memset(&dir, 0, sizeof(dir));
 267
 268         if (!s->untracked) {
 269                 dir.show_other_directories = 1;
 270                 dir.hide_empty_directories = 1;
 271         }
 272         setup_standard_excludes(&dir);
 273
 274         read_directory(&dir, ".", "", 0, NULL);
 275         for(i = 0; i < dir.nr; i++) {
 276                 /* check for matching entry, which is unmerged; lifted from
 277                  * builtin-ls-files:show_other_files */
 278                 struct dir_entry *ent = dir.entries[i];
 279                 int pos = cache_name_pos(ent->name, ent->len);
 280                 struct cache_entry *ce;
 281                 if (0 <= pos)
 282                         die("bug in wt_status_print_untracked");
 283                 pos = -pos - 1;
 284                 if (pos < active_nr) {
 285                         ce = active_cache[pos];
 286                         if (ce_namelen(ce) == ent->len &&
 287                             !memcmp(ce->name, ent->name, ent->len))
 288                                 continue;
 289                 }
 290                 if (!shown_header) {
 291                         s->workdir_untracked = 1;
 292                         wt_status_print_header(s, "Untracked files",
 293                                                use_add_to_include_msg);
 294                         shown_header = 1;
 295                 }
 296                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 297                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 298                                 quote_path(ent->name, ent->len,
 299                                         &buf, s->prefix));
 300         }
 301         strbuf_release(&buf);
 302 }
 303
 304 static void wt_status_print_verbose(struct wt_status *s)
 305 {
 306         struct rev_info rev;
 307
 308         init_revisions(&rev, NULL);
 309         setup_revisions(0, NULL, &rev, s->reference);
 310         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 311         rev.diffopt.detect_rename = 1;
 312         rev.diffopt.file = s->fp;
 313         rev.diffopt.close_file = 0;
 314         run_diff_index(&rev, 1);
 315 }
 316
 317 void wt_status_print(struct wt_status *s)
 318 {
 319         unsigned char sha1[20];
 320         const char *branch_color = color(WT_STATUS_HEADER);
 321
 322         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 323         if (s->branch) {
 324                 const char *on_what = "On branch ";
 325                 const char *branch_name = s->branch;
 326                 if (!prefixcmp(branch_name, "refs/heads/"))
 327                         branch_name += 11;
 328                 else if (!strcmp(branch_name, "HEAD")) {
 329                         branch_name = "";
 330                         branch_color = color(WT_STATUS_NOBRANCH);
 331                         on_what = "Not currently on any branch.";
 332                 }
 333                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "# ");
 334                 color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 335         }
 336
 337         if (s->is_initial) {
 338                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 339                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 340                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 341                 wt_status_print_initial(s);
 342         }
 343         else {
 344                 wt_status_print_updated(s);
 345         }
 346
 347         wt_status_print_changed(s);
 348         if (wt_status_submodule_summary)
 349                 wt_status_print_submodule_summary(s);
 350         wt_status_print_untracked(s);
 351
 352         if (s->verbose && !s->is_initial)
 353                 wt_status_print_verbose(s);
 354         if (!s->commitable) {
 355                 if (s->amend)
 356                         fprintf(s->fp, "# No changes\n");
 357                 else if (s->nowarn)
 358                         ; /* nothing */
 359                 else if (s->workdir_dirty)
 360                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 361                 else if (s->workdir_untracked)
 362                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 363                 else if (s->is_initial)
 364                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 365                 else
 366                         printf("nothing to commit (working directory clean)\n");
 367         }
 368 }
 369
 370 int git_status_config(const char *k, const char *v, void *cb)
 371 {
 372         if (!strcmp(k, "status.submodulesummary")) {
 373                 int is_bool;
 374                 wt_status_submodule_summary = git_config_bool_or_int(k, v, &is_bool);
 375                 if (is_bool && wt_status_submodule_summary)
 376                         wt_status_submodule_summary = -1;
 377                 return 0;
 378         }
 379         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 380                 wt_status_use_color = git_config_colorbool(k, v, -1);
 381                 return 0;
 382         }
 383         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 384                 int slot = parse_status_slot(k, 13);
 385                 if (!v)
 386                         return config_error_nonbool(k);
 387                 color_parse(v, k, wt_status_colors[slot]);
 388                 return 0;
 389         }
 390         if (!strcmp(k, "status.relativepaths")) {
 391                 wt_status_relative_paths = git_config_bool(k, v);
 392                 return 0;
 393         }
 394         return git_color_default_config(k, v, cb);
 395 }