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
  19 static int parse_status_slot(const char *var, int offset)
  20 {
  21         if (!strcasecmp(var+offset, "header"))
  22                 return WT_STATUS_HEADER;
  23         if (!strcasecmp(var+offset, "updated"))
  24                 return WT_STATUS_UPDATED;
  25         if (!strcasecmp(var+offset, "changed"))
  26                 return WT_STATUS_CHANGED;
  27         if (!strcasecmp(var+offset, "untracked"))
  28                 return WT_STATUS_UNTRACKED;
  29         die("bad config variable '%s'", var);
  30 }
  31
  32 static const char* color(int slot)
  33 {
  34         return wt_status_use_color ? wt_status_colors[slot] : "";
  35 }
  36
  37 void wt_status_prepare(struct wt_status *s)
  38 {
  39         unsigned char sha1[20];
  40         const char *head;
  41
  42         s->is_initial = get_sha1("HEAD", sha1) ? 1 : 0;
  43
  44         head = resolve_ref("HEAD", sha1, 0, NULL);
  45         s->branch = head ? xstrdup(head) : NULL;
  46
  47         s->reference = "HEAD";
  48         s->amend = 0;
  49         s->verbose = 0;
  50         s->commitable = 0;
  51         s->untracked = 0;
  52 }
  53
  54 static void wt_status_print_header(const char *main, const char *sub)
  55 {
  56         const char *c = color(WT_STATUS_HEADER);
  57         color_printf_ln(c, "# %s:", main);
  58         color_printf_ln(c, "#   (%s)", sub);
  59         color_printf_ln(c, "#");
  60 }
  61
  62 static void wt_status_print_trailer(void)
  63 {
  64         color_printf_ln(color(WT_STATUS_HEADER), "#");
  65 }
  66
  67 static const char *quote_crlf(const char *in, char *buf, size_t sz)
  68 {
  69         const char *scan;
  70         char *out;
  71         const char *ret = in;
  72
  73         for (scan = in, out = buf; *scan; scan++) {
  74                 int ch = *scan;
  75                 int quoted;
  76
  77                 switch (ch) {
  78                 case '\n':
  79                         quoted = 'n';
  80                         break;
  81                 case '\r':
  82                         quoted = 'r';
  83                         break;
  84                 default:
  85                         *out++ = ch;
  86                         continue;
  87                 }
  88                 *out++ = '\\';
  89                 *out++ = quoted;
  90                 ret = buf;
  91         }
  92         *out = '\0';
  93         return ret;
  94 }
  95
  96 static void wt_status_print_filepair(int t, struct diff_filepair *p)
  97 {
  98         const char *c = color(t);
  99         const char *one, *two;
 100         char onebuf[PATH_MAX], twobuf[PATH_MAX];
 101
 102         one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
 103         two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
 104
 105         color_printf(color(WT_STATUS_HEADER), "#\t");
 106         switch (p->status) {
 107         case DIFF_STATUS_ADDED:
 108                 color_printf(c, "new file:   %s", one);
 109                 break;
 110         case DIFF_STATUS_COPIED:
 111                 color_printf(c, "copied:     %s -> %s", one, two);
 112                 break;
 113         case DIFF_STATUS_DELETED:
 114                 color_printf(c, "deleted:    %s", one);
 115                 break;
 116         case DIFF_STATUS_MODIFIED:
 117                 color_printf(c, "modified:   %s", one);
 118                 break;
 119         case DIFF_STATUS_RENAMED:
 120                 color_printf(c, "renamed:    %s -> %s", one, two);
 121                 break;
 122         case DIFF_STATUS_TYPE_CHANGED:
 123                 color_printf(c, "typechange: %s", one);
 124                 break;
 125         case DIFF_STATUS_UNKNOWN:
 126                 color_printf(c, "unknown:    %s", one);
 127                 break;
 128         case DIFF_STATUS_UNMERGED:
 129                 color_printf(c, "unmerged:   %s", one);
 130                 break;
 131         default:
 132                 die("bug: unhandled diff status %c", p->status);
 133         }
 134         printf("\n");
 135 }
 136
 137 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 138                 struct diff_options *options,
 139                 void *data)
 140 {
 141         struct wt_status *s = data;
 142         int shown_header = 0;
 143         int i;
 144         for (i = 0; i < q->nr; i++) {
 145                 if (q->queue[i]->status == 'U')
 146                         continue;
 147                 if (!shown_header) {
 148                         wt_status_print_header("Updated but not checked in",
 149                                         "will commit");
 150                         s->commitable = 1;
 151                         shown_header = 1;
 152                 }
 153                 wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
 154         }
 155         if (shown_header)
 156                 wt_status_print_trailer();
 157 }
 158
 159 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 160                         struct diff_options *options,
 161                         void *data)
 162 {
 163         int i;
 164         if (q->nr)
 165                 wt_status_print_header("Changed but not updated",
 166                                 "use git-update-index to mark for commit");
 167         for (i = 0; i < q->nr; i++)
 168                 wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
 169         if (q->nr)
 170                 wt_status_print_trailer();
 171 }
 172
 173 void wt_status_print_initial(struct wt_status *s)
 174 {
 175         int i;
 176         char buf[PATH_MAX];
 177
 178         read_cache();
 179         if (active_nr) {
 180                 s->commitable = 1;
 181                 wt_status_print_header("Updated but not checked in",
 182                                 "will commit");
 183         }
 184         for (i = 0; i < active_nr; i++) {
 185                 color_printf(color(WT_STATUS_HEADER), "#\t");
 186                 color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
 187                                 quote_crlf(active_cache[i]->name,
 188                                            buf, sizeof(buf)));
 189         }
 190         if (active_nr)
 191                 wt_status_print_trailer();
 192 }
 193
 194 static void wt_status_print_updated(struct wt_status *s)
 195 {
 196         struct rev_info rev;
 197         init_revisions(&rev, NULL);
 198         setup_revisions(0, NULL, &rev, s->reference);
 199         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 200         rev.diffopt.format_callback = wt_status_print_updated_cb;
 201         rev.diffopt.format_callback_data = s;
 202         rev.diffopt.detect_rename = 1;
 203         run_diff_index(&rev, 1);
 204 }
 205
 206 static void wt_status_print_changed(struct wt_status *s)
 207 {
 208         struct rev_info rev;
 209         init_revisions(&rev, "");
 210         setup_revisions(0, NULL, &rev, NULL);
 211         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 212         rev.diffopt.format_callback = wt_status_print_changed_cb;
 213         rev.diffopt.format_callback_data = s;
 214         run_diff_files(&rev, 0);
 215 }
 216
 217 static void wt_status_print_untracked(const struct wt_status *s)
 218 {
 219         struct dir_struct dir;
 220         const char *x;
 221         int i;
 222         int shown_header = 0;
 223
 224         memset(&dir, 0, sizeof(dir));
 225
 226         dir.exclude_per_dir = ".gitignore";
 227         if (!s->untracked) {
 228                 dir.show_other_directories = 1;
 229                 dir.hide_empty_directories = 1;
 230         }
 231         x = git_path("info/exclude");
 232         if (file_exists(x))
 233                 add_excludes_from_file(&dir, x);
 234
 235         read_directory(&dir, ".", "", 0);
 236         for(i = 0; i < dir.nr; i++) {
 237                 /* check for matching entry, which is unmerged; lifted from
 238                  * builtin-ls-files:show_other_files */
 239                 struct dir_entry *ent = dir.entries[i];
 240                 int pos = cache_name_pos(ent->name, ent->len);
 241                 struct cache_entry *ce;
 242                 if (0 <= pos)
 243                         die("bug in wt_status_print_untracked");
 244                 pos = -pos - 1;
 245                 if (pos < active_nr) {
 246                         ce = active_cache[pos];
 247                         if (ce_namelen(ce) == ent->len &&
 248                             !memcmp(ce->name, ent->name, ent->len))
 249                                 continue;
 250                 }
 251                 if (!shown_header) {
 252                         wt_status_print_header("Untracked files",
 253                                 "use \"git add\" to add to commit");
 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\n", s->amend ? "# No changes" : "nothing to commit");
 296 }
 297
 298 int git_status_config(const char *k, const char *v)
 299 {
 300         if (!strcmp(k, "status.color")) {
 301                 wt_status_use_color = git_config_colorbool(k, v);
 302                 return 0;
 303         }
 304         if (!strncmp(k, "status.color.", 13)) {
 305                 int slot = parse_status_slot(k, 13);
 306                 color_parse(v, k, wt_status_colors[slot]);
 307         }
 308         return git_default_config(k, v);
 309 }