wt-status.c

   1 #include "wt-status.h"
   2 #include "color.h"
   3 #include "cache.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 file1 file2\" to include for 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
  56 static void wt_status_print_header(const char *main, const char *sub)
  57 {
  58         const char *c = color(WT_STATUS_HEADER);
  59         color_printf_ln(c, "# %s:", main);
  60         color_printf_ln(c, "#   (%s)", sub);
  61         color_printf_ln(c, "#");
  62 }
  63
  64 static void wt_status_print_trailer(void)
  65 {
  66         color_printf_ln(color(WT_STATUS_HEADER), "#");
  67 }
  68
  69 static const char *quote_crlf(const char *in, char *buf, size_t sz)
  70 {
  71         const char *scan;
  72         char *out;
  73         const char *ret = in;
  74
  75         for (scan = in, out = buf; *scan; scan++) {
  76                 int ch = *scan;
  77                 int quoted;
  78
  79                 switch (ch) {
  80                 case '\n':
  81                         quoted = 'n';
  82                         break;
  83                 case '\r':
  84                         quoted = 'r';
  85                         break;
  86                 default:
  87                         *out++ = ch;
  88                         continue;
  89                 }
  90                 *out++ = '\\';
  91                 *out++ = quoted;
  92                 ret = buf;
  93         }
  94         *out = '\0';
  95         return ret;
  96 }
  97
  98 static void wt_status_print_filepair(int t, struct diff_filepair *p)
  99 {
 100         const char *c = color(t);
 101         const char *one, *two;
 102         char onebuf[PATH_MAX], twobuf[PATH_MAX];
 103
 104         one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
 105         two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
 106
 107         color_printf(color(WT_STATUS_HEADER), "#\t");
 108         switch (p->status) {
 109         case DIFF_STATUS_ADDED:
 110                 color_printf(c, "new file:   %s", one);
 111                 break;
 112         case DIFF_STATUS_COPIED:
 113                 color_printf(c, "copied:     %s -> %s", one, two);
 114                 break;
 115         case DIFF_STATUS_DELETED:
 116                 color_printf(c, "deleted:    %s", one);
 117                 break;
 118         case DIFF_STATUS_MODIFIED:
 119                 color_printf(c, "modified:   %s", one);
 120                 break;
 121         case DIFF_STATUS_RENAMED:
 122                 color_printf(c, "renamed:    %s -> %s", one, two);
 123                 break;
 124         case DIFF_STATUS_TYPE_CHANGED:
 125                 color_printf(c, "typechange: %s", one);
 126                 break;
 127         case DIFF_STATUS_UNKNOWN:
 128                 color_printf(c, "unknown:    %s", one);
 129                 break;
 130         case DIFF_STATUS_UNMERGED:
 131                 color_printf(c, "unmerged:   %s", one);
 132                 break;
 133         default:
 134                 die("bug: unhandled diff status %c", p->status);
 135         }
 136         printf("\n");
 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_header("Added but not yet committed",
 151                                         "will commit");
 152                         s->commitable = 1;
 153                         shown_header = 1;
 154                 }
 155                 wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
 156         }
 157         if (shown_header)
 158                 wt_status_print_trailer();
 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         int i;
 166         if (q->nr)
 167                 wt_status_print_header("Changed but not added", use_add_msg);
 168         for (i = 0; i < q->nr; i++)
 169                 wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
 170         if (q->nr)
 171                 wt_status_print_trailer();
 172 }
 173
 174 void wt_status_print_initial(struct wt_status *s)
 175 {
 176         int i;
 177         char buf[PATH_MAX];
 178
 179         read_cache();
 180         if (active_nr) {
 181                 s->commitable = 1;
 182                 wt_status_print_header("Added but not yet committed",
 183                                 "will commit");
 184         }
 185         for (i = 0; i < active_nr; i++) {
 186                 color_printf(color(WT_STATUS_HEADER), "#\t");
 187                 color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
 188                                 quote_crlf(active_cache[i]->name,
 189                                            buf, sizeof(buf)));
 190         }
 191         if (active_nr)
 192                 wt_status_print_trailer();
 193 }
 194
 195 static void wt_status_print_updated(struct wt_status *s)
 196 {
 197         struct rev_info rev;
 198         init_revisions(&rev, NULL);
 199         setup_revisions(0, NULL, &rev, s->reference);
 200         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 201         rev.diffopt.format_callback = wt_status_print_updated_cb;
 202         rev.diffopt.format_callback_data = s;
 203         rev.diffopt.detect_rename = 1;
 204         run_diff_index(&rev, 1);
 205 }
 206
 207 static void wt_status_print_changed(struct wt_status *s)
 208 {
 209         struct rev_info rev;
 210         init_revisions(&rev, "");
 211         setup_revisions(0, NULL, &rev, NULL);
 212         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 213         rev.diffopt.format_callback = wt_status_print_changed_cb;
 214         rev.diffopt.format_callback_data = s;
 215         run_diff_files(&rev, 0);
 216 }
 217
 218 static void wt_status_print_untracked(const struct wt_status *s)
 219 {
 220         struct dir_struct dir;
 221         const char *x;
 222         int i;
 223         int shown_header = 0;
 224
 225         memset(&dir, 0, sizeof(dir));
 226
 227         dir.exclude_per_dir = ".gitignore";
 228         if (!s->untracked) {
 229                 dir.show_other_directories = 1;
 230                 dir.hide_empty_directories = 1;
 231         }
 232         x = git_path("info/exclude");
 233         if (file_exists(x))
 234                 add_excludes_from_file(&dir, x);
 235
 236         read_directory(&dir, ".", "", 0);
 237         for(i = 0; i < dir.nr; i++) {
 238                 /* check for matching entry, which is unmerged; lifted from
 239                  * builtin-ls-files:show_other_files */
 240                 struct dir_entry *ent = dir.entries[i];
 241                 int pos = cache_name_pos(ent->name, ent->len);
 242                 struct cache_entry *ce;
 243                 if (0 <= pos)
 244                         die("bug in wt_status_print_untracked");
 245                 pos = -pos - 1;
 246                 if (pos < active_nr) {
 247                         ce = active_cache[pos];
 248                         if (ce_namelen(ce) == ent->len &&
 249                             !memcmp(ce->name, ent->name, ent->len))
 250                                 continue;
 251                 }
 252                 if (!shown_header) {
 253                         wt_status_print_header("Untracked files", use_add_msg);
 254                         shown_header = 1;
 255                 }
 256                 color_printf(color(WT_STATUS_HEADER), "#\t");
 257                 color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
 258                                 ent->len, ent->name);
 259         }
 260 }
 261
 262 static void wt_status_print_verbose(struct wt_status *s)
 263 {
 264         struct rev_info rev;
 265         init_revisions(&rev, NULL);
 266         setup_revisions(0, NULL, &rev, s->reference);
 267         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 268         rev.diffopt.detect_rename = 1;
 269         run_diff_index(&rev, 1);
 270 }
 271
 272 void wt_status_print(struct wt_status *s)
 273 {
 274         if (s->branch && strcmp(s->branch, "refs/heads/master"))
 275                 color_printf_ln(color(WT_STATUS_HEADER),
 276                         "# On branch %s", s->branch);
 277
 278         if (s->is_initial) {
 279                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 280                 color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
 281                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 282                 wt_status_print_initial(s);
 283         }
 284         else {
 285                 wt_status_print_updated(s);
 286                 discard_cache();
 287         }
 288
 289         wt_status_print_changed(s);
 290         wt_status_print_untracked(s);
 291
 292         if (s->verbose && !s->is_initial)
 293                 wt_status_print_verbose(s);
 294         if (!s->commitable)
 295                 printf("%s (%s)\n",
 296                         s->amend ? "# No changes" : "nothing to commit",
 297                         use_add_msg);
 298 }
 299
 300 int git_status_config(const char *k, const char *v)
 301 {
 302         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 303                 wt_status_use_color = git_config_colorbool(k, v);
 304                 return 0;
 305         }
 306         if (!strncmp(k, "status.color.", 13) || !strncmp(k, "color.status", 13)) {
 307                 int slot = parse_status_slot(k, 13);
 308                 color_parse(v, k, wt_status_colors[slot]);
 309         }
 310         return git_default_config(k, v);
 311 }