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
  12 int wt_status_relative_paths = 1;
  13 int wt_status_use_color = -1;
  14 static char wt_status_colors[][COLOR_MAXLEN] = {
  15         "",         /* WT_STATUS_HEADER: normal */
  16         "\033[32m", /* WT_STATUS_UPDATED: green */
  17         "\033[31m", /* WT_STATUS_CHANGED: red */
  18         "\033[31m", /* WT_STATUS_UNTRACKED: red */
  19 };
  20
  21 static const char use_add_msg[] =
  22 "use \"git add <file>...\" to update what will be committed";
  23 static const char use_add_rm_msg[] =
  24 "use \"git add/rm <file>...\" to update what will be committed";
  25 static const char use_add_to_include_msg[] =
  26 "use \"git add <file>...\" to include in what will be committed";
  27
  28 static int parse_status_slot(const char *var, int offset)
  29 {
  30         if (!strcasecmp(var+offset, "header"))
  31                 return WT_STATUS_HEADER;
  32         if (!strcasecmp(var+offset, "updated")
  33                 || !strcasecmp(var+offset, "added"))
  34                 return WT_STATUS_UPDATED;
  35         if (!strcasecmp(var+offset, "changed"))
  36                 return WT_STATUS_CHANGED;
  37         if (!strcasecmp(var+offset, "untracked"))
  38                 return WT_STATUS_UNTRACKED;
  39         die("bad config variable '%s'", var);
  40 }
  41
  42 static const char* color(int slot)
  43 {
  44         return wt_status_use_color > 0 ? wt_status_colors[slot] : "";
  45 }
  46
  47 void wt_status_prepare(struct wt_status *s)
  48 {
  49         unsigned char sha1[20];
  50         const char *head;
  51
  52         memset(s, 0, sizeof(*s));
  53         head = resolve_ref("HEAD", sha1, 0, NULL);
  54         s->branch = head ? xstrdup(head) : NULL;
  55         s->reference = "HEAD";
  56         s->fp = stdout;
  57         s->index_file = get_index_file();
  58 }
  59
  60 static void wt_status_print_cached_header(struct wt_status *s)
  61 {
  62         const char *c = color(WT_STATUS_HEADER);
  63         color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  64         if (!s->is_initial) {
  65                 color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  66         } else {
  67                 color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  68         }
  69         color_fprintf_ln(s->fp, c, "#");
  70 }
  71
  72 static void wt_status_print_header(struct wt_status *s,
  73                                    const char *main, const char *sub)
  74 {
  75         const char *c = color(WT_STATUS_HEADER);
  76         color_fprintf_ln(s->fp, c, "# %s:", main);
  77         color_fprintf_ln(s->fp, c, "#   (%s)", sub);
  78         color_fprintf_ln(s->fp, c, "#");
  79 }
  80
  81 static void wt_status_print_trailer(struct wt_status *s)
  82 {
  83         color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
  84 }
  85
  86 #define quote_path quote_path_relative
  87
  88 static void wt_status_print_filepair(struct wt_status *s,
  89                                      int t, struct diff_filepair *p)
  90 {
  91         const char *c = color(t);
  92         const char *one, *two;
  93         struct strbuf onebuf, twobuf;
  94
  95         strbuf_init(&onebuf, 0);
  96         strbuf_init(&twobuf, 0);
  97         one = quote_path(p->one->path, -1, &onebuf, s->prefix);
  98         two = quote_path(p->two->path, -1, &twobuf, s->prefix);
  99
 100         color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 101         switch (p->status) {
 102         case DIFF_STATUS_ADDED:
 103                 color_fprintf(s->fp, c, "new file:   %s", one);
 104                 break;
 105         case DIFF_STATUS_COPIED:
 106                 color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 107                 break;
 108         case DIFF_STATUS_DELETED:
 109                 color_fprintf(s->fp, c, "deleted:    %s", one);
 110                 break;
 111         case DIFF_STATUS_MODIFIED:
 112                 color_fprintf(s->fp, c, "modified:   %s", one);
 113                 break;
 114         case DIFF_STATUS_RENAMED:
 115                 color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 116                 break;
 117         case DIFF_STATUS_TYPE_CHANGED:
 118                 color_fprintf(s->fp, c, "typechange: %s", one);
 119                 break;
 120         case DIFF_STATUS_UNKNOWN:
 121                 color_fprintf(s->fp, c, "unknown:    %s", one);
 122                 break;
 123         case DIFF_STATUS_UNMERGED:
 124                 color_fprintf(s->fp, c, "unmerged:   %s", one);
 125                 break;
 126         default:
 127                 die("bug: unhandled diff status %c", p->status);
 128         }
 129         fprintf(s->fp, "\n");
 130         strbuf_release(&onebuf);
 131         strbuf_release(&twobuf);
 132 }
 133
 134 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 135                 struct diff_options *options,
 136                 void *data)
 137 {
 138         struct wt_status *s = data;
 139         int shown_header = 0;
 140         int i;
 141         for (i = 0; i < q->nr; i++) {
 142                 if (q->queue[i]->status == 'U')
 143                         continue;
 144                 if (!shown_header) {
 145                         wt_status_print_cached_header(s);
 146                         s->commitable = 1;
 147                         shown_header = 1;
 148                 }
 149                 wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 150         }
 151         if (shown_header)
 152                 wt_status_print_trailer(s);
 153 }
 154
 155 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 156                         struct diff_options *options,
 157                         void *data)
 158 {
 159         struct wt_status *s = data;
 160         int i;
 161         if (q->nr) {
 162                 const char *msg = use_add_msg;
 163                 s->workdir_dirty = 1;
 164                 for (i = 0; i < q->nr; i++)
 165                         if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 166                                 msg = use_add_rm_msg;
 167                                 break;
 168                         }
 169                 wt_status_print_header(s, "Changed but not updated", msg);
 170         }
 171         for (i = 0; i < q->nr; i++)
 172                 wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 173         if (q->nr)
 174                 wt_status_print_trailer(s);
 175 }
 176
 177 static void wt_status_print_initial(struct wt_status *s)
 178 {
 179         int i;
 180         struct strbuf buf;
 181
 182         strbuf_init(&buf, 0);
 183         if (active_nr) {
 184                 s->commitable = 1;
 185                 wt_status_print_cached_header(s);
 186         }
 187         for (i = 0; i < active_nr; i++) {
 188                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 189                 color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 190                                 quote_path(active_cache[i]->name, -1,
 191                                            &buf, s->prefix));
 192         }
 193         if (active_nr)
 194                 wt_status_print_trailer(s);
 195         strbuf_release(&buf);
 196 }
 197
 198 static void wt_status_print_updated(struct wt_status *s)
 199 {
 200         struct rev_info rev;
 201         init_revisions(&rev, NULL);
 202         setup_revisions(0, NULL, &rev, s->reference);
 203         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 204         rev.diffopt.format_callback = wt_status_print_updated_cb;
 205         rev.diffopt.format_callback_data = s;
 206         rev.diffopt.detect_rename = 1;
 207         rev.diffopt.rename_limit = 100;
 208         rev.diffopt.break_opt = 0;
 209         run_diff_index(&rev, 1);
 210 }
 211
 212 static void wt_status_print_changed(struct wt_status *s)
 213 {
 214         struct rev_info rev;
 215         init_revisions(&rev, "");
 216         setup_revisions(0, NULL, &rev, NULL);
 217         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 218         rev.diffopt.format_callback = wt_status_print_changed_cb;
 219         rev.diffopt.format_callback_data = s;
 220         run_diff_files(&rev, 0);
 221 }
 222
 223 static void wt_status_print_untracked(struct wt_status *s)
 224 {
 225         struct dir_struct dir;
 226         int i;
 227         int shown_header = 0;
 228         struct strbuf buf;
 229
 230         strbuf_init(&buf, 0);
 231         memset(&dir, 0, sizeof(dir));
 232
 233         if (!s->untracked) {
 234                 dir.show_other_directories = 1;
 235                 dir.hide_empty_directories = 1;
 236         }
 237         setup_standard_excludes(&dir);
 238
 239         read_directory(&dir, ".", "", 0, NULL);
 240         for(i = 0; i < dir.nr; i++) {
 241                 /* check for matching entry, which is unmerged; lifted from
 242                  * builtin-ls-files:show_other_files */
 243                 struct dir_entry *ent = dir.entries[i];
 244                 int pos = cache_name_pos(ent->name, ent->len);
 245                 struct cache_entry *ce;
 246                 if (0 <= pos)
 247                         die("bug in wt_status_print_untracked");
 248                 pos = -pos - 1;
 249                 if (pos < active_nr) {
 250                         ce = active_cache[pos];
 251                         if (ce_namelen(ce) == ent->len &&
 252                             !memcmp(ce->name, ent->name, ent->len))
 253                                 continue;
 254                 }
 255                 if (!shown_header) {
 256                         s->workdir_untracked = 1;
 257                         wt_status_print_header(s, "Untracked files",
 258                                                use_add_to_include_msg);
 259                         shown_header = 1;
 260                 }
 261                 color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 262                 color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 263                                 quote_path(ent->name, ent->len,
 264                                         &buf, s->prefix));
 265         }
 266         strbuf_release(&buf);
 267 }
 268
 269 static void wt_status_print_verbose(struct wt_status *s)
 270 {
 271         struct rev_info rev;
 272         int saved_stdout;
 273
 274         fflush(s->fp);
 275
 276         /* Sigh, the entire diff machinery is hardcoded to output to
 277          * stdout.  Do the dup-dance...*/
 278         saved_stdout = dup(STDOUT_FILENO);
 279         if (saved_stdout < 0 ||dup2(fileno(s->fp), STDOUT_FILENO) < 0)
 280                 die("couldn't redirect stdout\n");
 281
 282         init_revisions(&rev, NULL);
 283         setup_revisions(0, NULL, &rev, s->reference);
 284         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 285         rev.diffopt.detect_rename = 1;
 286         run_diff_index(&rev, 1);
 287
 288         fflush(stdout);
 289
 290         if (dup2(saved_stdout, STDOUT_FILENO) < 0)
 291                 die("couldn't restore stdout\n");
 292         close(saved_stdout);
 293 }
 294
 295 void wt_status_print(struct wt_status *s)
 296 {
 297         unsigned char sha1[20];
 298         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 299
 300         if (s->branch) {
 301                 const char *on_what = "On branch ";
 302                 const char *branch_name = s->branch;
 303                 if (!prefixcmp(branch_name, "refs/heads/"))
 304                         branch_name += 11;
 305                 else if (!strcmp(branch_name, "HEAD")) {
 306                         branch_name = "";
 307                         on_what = "Not currently on any branch.";
 308                 }
 309                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
 310                         "# %s%s", on_what, branch_name);
 311         }
 312
 313         if (s->is_initial) {
 314                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 315                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 316                 color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 317                 wt_status_print_initial(s);
 318         }
 319         else {
 320                 wt_status_print_updated(s);
 321         }
 322
 323         wt_status_print_changed(s);
 324         wt_status_print_untracked(s);
 325
 326         if (s->verbose && !s->is_initial)
 327                 wt_status_print_verbose(s);
 328         if (!s->commitable) {
 329                 if (s->amend)
 330                         fprintf(s->fp, "# No changes\n");
 331                 else if (s->nowarn)
 332                         ; /* nothing */
 333                 else if (s->workdir_dirty)
 334                         printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 335                 else if (s->workdir_untracked)
 336                         printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 337                 else if (s->is_initial)
 338                         printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 339                 else
 340                         printf("nothing to commit (working directory clean)\n");
 341         }
 342 }
 343
 344 int git_status_config(const char *k, const char *v)
 345 {
 346         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 347                 wt_status_use_color = git_config_colorbool(k, v, -1);
 348                 return 0;
 349         }
 350         if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 351                 int slot = parse_status_slot(k, 13);
 352                 if (!v)
 353                         return config_error_nonbool(k);
 354                 color_parse(v, k, wt_status_colors[slot]);
 355                 return 0;
 356         }
 357         if (!strcmp(k, "status.relativepaths")) {
 358                 wt_status_relative_paths = git_config_bool(k, v);
 359                 return 0;
 360         }
 361         return git_color_default_config(k, v);
 362 }