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
  11 int wt_status_use_color = 0;
  12 static char wt_status_colors[][COLOR_MAXLEN] = {
  13         "",         /* WT_STATUS_HEADER: normal */
  14         "\033[32m", /* WT_STATUS_UPDATED: green */
  15         "\033[31m", /* WT_STATUS_CHANGED: red */
  16         "\033[31m", /* WT_STATUS_UNTRACKED: red */
  17 };
  18 static const char* use_add_msg = "use \"git add <file>...\" to incrementally add content to commit";
  19
  20 static int parse_status_slot(const char *var, int offset)
  21 {
  22         if (!strcasecmp(var+offset, "header"))
  23                 return WT_STATUS_HEADER;
  24         if (!strcasecmp(var+offset, "updated")
  25                 || !strcasecmp(var+offset, "added"))
  26                 return WT_STATUS_UPDATED;
  27         if (!strcasecmp(var+offset, "changed"))
  28                 return WT_STATUS_CHANGED;
  29         if (!strcasecmp(var+offset, "untracked"))
  30                 return WT_STATUS_UNTRACKED;
  31         die("bad config variable '%s'", var);
  32 }
  33
  34 static const char* color(int slot)
  35 {
  36         return wt_status_use_color ? wt_status_colors[slot] : "";
  37 }
  38
  39 void wt_status_prepare(struct wt_status *s)
  40 {
  41         unsigned char sha1[20];
  42         const char *head;
  43
  44         s->is_initial = get_sha1("HEAD", sha1) ? 1 : 0;
  45
  46         head = resolve_ref("HEAD", sha1, 0, NULL);
  47         s->branch = head ? xstrdup(head) : NULL;
  48
  49         s->reference = "HEAD";
  50         s->amend = 0;
  51         s->verbose = 0;
  52         s->commitable = 0;
  53         s->untracked = 0;
  54
  55         s->workdir_clean = 1;
  56 }
  57
  58 static void wt_status_print_header(const char *main, const char *sub)
  59 {
  60         const char *c = color(WT_STATUS_HEADER);
  61         color_printf_ln(c, "# %s:", main);
  62         color_printf_ln(c, "#   (%s)", sub);
  63         color_printf_ln(c, "#");
  64 }
  65
  66 static void wt_status_print_trailer(void)
  67 {
  68         color_printf_ln(color(WT_STATUS_HEADER), "#");
  69 }
  70
  71 static const char *quote_crlf(const char *in, char *buf, size_t sz)
  72 {
  73         const char *scan;
  74         char *out;
  75         const char *ret = in;
  76
  77         for (scan = in, out = buf; *scan; scan++) {
  78                 int ch = *scan;
  79                 int quoted;
  80
  81                 switch (ch) {
  82                 case '\n':
  83                         quoted = 'n';
  84                         break;
  85                 case '\r':
  86                         quoted = 'r';
  87                         break;
  88                 default:
  89                         *out++ = ch;
  90                         continue;
  91                 }
  92                 *out++ = '\\';
  93                 *out++ = quoted;
  94                 ret = buf;
  95         }
  96         *out = '\0';
  97         return ret;
  98 }
  99
 100 static void wt_status_print_filepair(int t, struct diff_filepair *p)
 101 {
 102         const char *c = color(t);
 103         const char *one, *two;
 104         char onebuf[PATH_MAX], twobuf[PATH_MAX];
 105
 106         one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
 107         two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
 108
 109         color_printf(color(WT_STATUS_HEADER), "#\t");
 110         switch (p->status) {
 111         case DIFF_STATUS_ADDED:
 112                 color_printf(c, "new file:   %s", one);
 113                 break;
 114         case DIFF_STATUS_COPIED:
 115                 color_printf(c, "copied:     %s -> %s", one, two);
 116                 break;
 117         case DIFF_STATUS_DELETED:
 118                 color_printf(c, "deleted:    %s", one);
 119                 break;
 120         case DIFF_STATUS_MODIFIED:
 121                 color_printf(c, "modified:   %s", one);
 122                 break;
 123         case DIFF_STATUS_RENAMED:
 124                 color_printf(c, "renamed:    %s -> %s", one, two);
 125                 break;
 126         case DIFF_STATUS_TYPE_CHANGED:
 127                 color_printf(c, "typechange: %s", one);
 128                 break;
 129         case DIFF_STATUS_UNKNOWN:
 130                 color_printf(c, "unknown:    %s", one);
 131                 break;
 132         case DIFF_STATUS_UNMERGED:
 133                 color_printf(c, "unmerged:   %s", one);
 134                 break;
 135         default:
 136                 die("bug: unhandled diff status %c", p->status);
 137         }
 138         printf("\n");
 139 }
 140
 141 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 142                 struct diff_options *options,
 143                 void *data)
 144 {
 145         struct wt_status *s = data;
 146         int shown_header = 0;
 147         int i;
 148         for (i = 0; i < q->nr; i++) {
 149                 if (q->queue[i]->status == 'U')
 150                         continue;
 151                 if (!shown_header) {
 152                         wt_status_print_header("Added but not yet committed",
 153                                         "will commit");
 154                         s->commitable = 1;
 155                         shown_header = 1;
 156                 }
 157                 wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
 158         }
 159         if (shown_header)
 160                 wt_status_print_trailer();
 161 }
 162
 163 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 164                         struct diff_options *options,
 165                         void *data)
 166 {
 167         struct wt_status *s = data;
 168         int i;
 169         if (q->nr) {
 170                 s->workdir_clean = 0;
 171                 wt_status_print_header("Changed but not added", use_add_msg);
 172         }
 173         for (i = 0; i < q->nr; i++)
 174                 wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
 175         if (q->nr)
 176                 wt_status_print_trailer();
 177 }
 178
 179 void wt_status_print_initial(struct wt_status *s)
 180 {
 181         int i;
 182         char buf[PATH_MAX];
 183
 184         read_cache();
 185         if (active_nr) {
 186                 s->commitable = 1;
 187                 wt_status_print_header("Added but not yet committed",
 188                                 "will commit");
 189         }
 190         for (i = 0; i < active_nr; i++) {
 191                 color_printf(color(WT_STATUS_HEADER), "#\t");
 192                 color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
 193                                 quote_crlf(active_cache[i]->name,
 194                                            buf, sizeof(buf)));
 195         }
 196         if (active_nr)
 197                 wt_status_print_trailer();
 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         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         const char *x;
 227         int i;
 228         int shown_header = 0;
 229
 230         memset(&dir, 0, sizeof(dir));
 231
 232         dir.exclude_per_dir = ".gitignore";
 233         if (!s->untracked) {
 234                 dir.show_other_directories = 1;
 235                 dir.hide_empty_directories = 1;
 236         }
 237         x = git_path("info/exclude");
 238         if (file_exists(x))
 239                 add_excludes_from_file(&dir, x);
 240
 241         read_directory(&dir, ".", "", 0);
 242         for(i = 0; i < dir.nr; i++) {
 243                 /* check for matching entry, which is unmerged; lifted from
 244                  * builtin-ls-files:show_other_files */
 245                 struct dir_entry *ent = dir.entries[i];
 246                 int pos = cache_name_pos(ent->name, ent->len);
 247                 struct cache_entry *ce;
 248                 if (0 <= pos)
 249                         die("bug in wt_status_print_untracked");
 250                 pos = -pos - 1;
 251                 if (pos < active_nr) {
 252                         ce = active_cache[pos];
 253                         if (ce_namelen(ce) == ent->len &&
 254                             !memcmp(ce->name, ent->name, ent->len))
 255                                 continue;
 256                 }
 257                 if (!shown_header) {
 258                         s->workdir_clean = 0;
 259                         wt_status_print_header("Untracked files", use_add_msg);
 260                         shown_header = 1;
 261                 }
 262                 color_printf(color(WT_STATUS_HEADER), "#\t");
 263                 color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
 264                                 ent->len, ent->name);
 265         }
 266 }
 267
 268 static void wt_status_print_verbose(struct wt_status *s)
 269 {
 270         struct rev_info rev;
 271         init_revisions(&rev, NULL);
 272         setup_revisions(0, NULL, &rev, s->reference);
 273         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 274         rev.diffopt.detect_rename = 1;
 275         run_diff_index(&rev, 1);
 276 }
 277
 278 void wt_status_print(struct wt_status *s)
 279 {
 280         if (s->branch)
 281                 color_printf_ln(color(WT_STATUS_HEADER),
 282                         "# On branch %s", s->branch);
 283
 284         if (s->is_initial) {
 285                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 286                 color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
 287                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 288                 wt_status_print_initial(s);
 289         }
 290         else {
 291                 wt_status_print_updated(s);
 292                 discard_cache();
 293         }
 294
 295         wt_status_print_changed(s);
 296         wt_status_print_untracked(s);
 297
 298         if (s->verbose && !s->is_initial)
 299                 wt_status_print_verbose(s);
 300         if (!s->commitable) {
 301                 if (s->amend)
 302                         printf("# No changes\n");
 303                 else if (s->workdir_clean)
 304                         printf(s->is_initial
 305                                ? "nothing to commit\n"
 306                                : "nothing to commit (working directory matches HEAD)\n");
 307                 else
 308                         printf("no changes added to commit (use \"git add\" and/or \"git commit [-a|-i|-o]\")\n");
 309         }
 310 }
 311
 312 int git_status_config(const char *k, const char *v)
 313 {
 314         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 315                 wt_status_use_color = git_config_colorbool(k, v);
 316                 return 0;
 317         }
 318         if (!strncmp(k, "status.color.", 13) || !strncmp(k, "color.status", 13)) {
 319                 int slot = parse_status_slot(k, 13);
 320                 color_parse(v, k, wt_status_colors[slot]);
 321         }
 322         return git_default_config(k, v);
 323 }