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(git_path("HEAD"), sha1, 0);
  45         s->branch = head ?
  46                     strdup(head + strlen(get_git_dir()) + 1) :
  47                     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 void wt_status_print_filepair(int t, struct diff_filepair *p)
  70 {
  71         const char *c = color(t);
  72         color_printf(color(WT_STATUS_HEADER), "#\t");
  73         switch (p->status) {
  74         case DIFF_STATUS_ADDED:
  75                 color_printf(c, "new file: %s", p->one->path); break;
  76         case DIFF_STATUS_COPIED:
  77                 color_printf(c, "copied: %s -> %s",
  78                                 p->one->path, p->two->path);
  79                 break;
  80         case DIFF_STATUS_DELETED:
  81                 color_printf(c, "deleted: %s", p->one->path); break;
  82         case DIFF_STATUS_MODIFIED:
  83                 color_printf(c, "modified: %s", p->one->path); break;
  84         case DIFF_STATUS_RENAMED:
  85                 color_printf(c, "renamed: %s -> %s",
  86                                 p->one->path, p->two->path);
  87                 break;
  88         case DIFF_STATUS_TYPE_CHANGED:
  89                 color_printf(c, "typechange: %s", p->one->path); break;
  90         case DIFF_STATUS_UNKNOWN:
  91                 color_printf(c, "unknown: %s", p->one->path); break;
  92         case DIFF_STATUS_UNMERGED:
  93                 color_printf(c, "unmerged: %s", p->one->path); break;
  94         default:
  95                 die("bug: unhandled diff status %c", p->status);
  96         }
  97         printf("\n");
  98 }
  99
 100 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 101                 struct diff_options *options,
 102                 void *data)
 103 {
 104         struct wt_status *s = data;
 105         int shown_header = 0;
 106         int i;
 107         for (i = 0; i < q->nr; i++) {
 108                 if (q->queue[i]->status == 'U')
 109                         continue;
 110                 if (!shown_header) {
 111                         wt_status_print_header("Updated but not checked in",
 112                                         "will commit");
 113                         s->commitable = 1;
 114                         shown_header = 1;
 115                 }
 116                 wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
 117         }
 118         if (shown_header)
 119                 wt_status_print_trailer();
 120 }
 121
 122 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 123                         struct diff_options *options,
 124                         void *data)
 125 {
 126         int i;
 127         if (q->nr)
 128                 wt_status_print_header("Changed but not updated",
 129                                 "use git-update-index to mark for commit");
 130         for (i = 0; i < q->nr; i++)
 131                 wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
 132         if (q->nr)
 133                 wt_status_print_trailer();
 134 }
 135
 136 void wt_status_print_initial(struct wt_status *s)
 137 {
 138         int i;
 139         read_cache();
 140         if (active_nr) {
 141                 s->commitable = 1;
 142                 wt_status_print_header("Updated but not checked in",
 143                                 "will commit");
 144         }
 145         for (i = 0; i < active_nr; i++) {
 146                 color_printf(color(WT_STATUS_HEADER), "#\t");
 147                 color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
 148                                 active_cache[i]->name);
 149         }
 150         if (active_nr)
 151                 wt_status_print_trailer();
 152 }
 153
 154 static void wt_status_print_updated(struct wt_status *s)
 155 {
 156         struct rev_info rev;
 157         init_revisions(&rev, NULL);
 158         setup_revisions(0, NULL, &rev, s->reference);
 159         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 160         rev.diffopt.format_callback = wt_status_print_updated_cb;
 161         rev.diffopt.format_callback_data = s;
 162         rev.diffopt.detect_rename = 1;
 163         run_diff_index(&rev, 1);
 164 }
 165
 166 static void wt_status_print_changed(struct wt_status *s)
 167 {
 168         struct rev_info rev;
 169         init_revisions(&rev, "");
 170         setup_revisions(0, NULL, &rev, NULL);
 171         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 172         rev.diffopt.format_callback = wt_status_print_changed_cb;
 173         rev.diffopt.format_callback_data = s;
 174         run_diff_files(&rev, 0);
 175 }
 176
 177 static void wt_status_print_untracked(const struct wt_status *s)
 178 {
 179         struct dir_struct dir;
 180         const char *x;
 181         int i;
 182         int shown_header = 0;
 183
 184         memset(&dir, 0, sizeof(dir));
 185
 186         dir.exclude_per_dir = ".gitignore";
 187         if (!s->untracked) {
 188                 dir.show_other_directories = 1;
 189                 dir.hide_empty_directories = 1;
 190         }
 191         x = git_path("info/exclude");
 192         if (file_exists(x))
 193                 add_excludes_from_file(&dir, x);
 194
 195         read_directory(&dir, ".", "", 0);
 196         for(i = 0; i < dir.nr; i++) {
 197                 /* check for matching entry, which is unmerged; lifted from
 198                  * builtin-ls-files:show_other_files */
 199                 struct dir_entry *ent = dir.entries[i];
 200                 int pos = cache_name_pos(ent->name, ent->len);
 201                 struct cache_entry *ce;
 202                 if (0 <= pos)
 203                         die("bug in wt_status_print_untracked");
 204                 pos = -pos - 1;
 205                 if (pos < active_nr) {
 206                         ce = active_cache[pos];
 207                         if (ce_namelen(ce) == ent->len &&
 208                             !memcmp(ce->name, ent->name, ent->len))
 209                                 continue;
 210                 }
 211                 if (!shown_header) {
 212                         wt_status_print_header("Untracked files",
 213                                 "use \"git add\" to add to commit");
 214                         shown_header = 1;
 215                 }
 216                 color_printf(color(WT_STATUS_HEADER), "#\t");
 217                 color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
 218                                 ent->len, ent->name);
 219         }
 220 }
 221
 222 static void wt_status_print_verbose(struct wt_status *s)
 223 {
 224         struct rev_info rev;
 225         init_revisions(&rev, NULL);
 226         setup_revisions(0, NULL, &rev, s->reference);
 227         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 228         rev.diffopt.detect_rename = 1;
 229         run_diff_index(&rev, 1);
 230 }
 231
 232 void wt_status_print(struct wt_status *s)
 233 {
 234         if (s->branch && strcmp(s->branch, "refs/heads/master"))
 235                 color_printf_ln(color(WT_STATUS_HEADER),
 236                         "# On branch %s", s->branch);
 237
 238         if (s->is_initial) {
 239                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 240                 color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
 241                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 242                 wt_status_print_initial(s);
 243         }
 244         else {
 245                 wt_status_print_updated(s);
 246                 discard_cache();
 247         }
 248
 249         wt_status_print_changed(s);
 250         wt_status_print_untracked(s);
 251
 252         if (s->verbose && !s->is_initial)
 253                 wt_status_print_verbose(s);
 254         if (!s->commitable)
 255                 printf("%s\n", s->amend ? "# No changes" : "nothing to commit");
 256 }
 257
 258 int git_status_config(const char *k, const char *v)
 259 {
 260         if (!strcmp(k, "status.color")) {
 261                 wt_status_use_color = git_config_colorbool(k, v);
 262                 return 0;
 263         }
 264         if (!strncmp(k, "status.color.", 13)) {
 265                 int slot = parse_status_slot(k, 13);
 266                 color_parse(v, k, wt_status_colors[slot]);
 267         }
 268         return git_default_config(k, v);
 269 }