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         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         s->workdir_clean = 1;
  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         struct wt_status *s = data;
 166         int i;
 167         if (q->nr) {
 168                 s->workdir_clean = 0;
 169                 wt_status_print_header("Changed but not added", use_add_msg);
 170         }
 171         for (i = 0; i < q->nr; i++)
 172                 wt_status_print_filepair(WT_STATUS_CHANGED, q->queue[i]);
 173         if (q->nr)
 174                 wt_status_print_trailer();
 175 }
 176
 177 void wt_status_print_initial(struct wt_status *s)
 178 {
 179         int i;
 180         char buf[PATH_MAX];
 181
 182         read_cache();
 183         if (active_nr) {
 184                 s->commitable = 1;
 185                 wt_status_print_header("Added but not yet committed",
 186                                 "will commit");
 187         }
 188         for (i = 0; i < active_nr; i++) {
 189                 color_printf(color(WT_STATUS_HEADER), "#\t");
 190                 color_printf_ln(color(WT_STATUS_UPDATED), "new file: %s",
 191                                 quote_crlf(active_cache[i]->name,
 192                                            buf, sizeof(buf)));
 193         }
 194         if (active_nr)
 195                 wt_status_print_trailer();
 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         run_diff_index(&rev, 1);
 208 }
 209
 210 static void wt_status_print_changed(struct wt_status *s)
 211 {
 212         struct rev_info rev;
 213         init_revisions(&rev, "");
 214         setup_revisions(0, NULL, &rev, NULL);
 215         rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 216         rev.diffopt.format_callback = wt_status_print_changed_cb;
 217         rev.diffopt.format_callback_data = s;
 218         run_diff_files(&rev, 0);
 219 }
 220
 221 static void wt_status_print_untracked(struct wt_status *s)
 222 {
 223         struct dir_struct dir;
 224         const char *x;
 225         int i;
 226         int shown_header = 0;
 227
 228         memset(&dir, 0, sizeof(dir));
 229
 230         dir.exclude_per_dir = ".gitignore";
 231         if (!s->untracked) {
 232                 dir.show_other_directories = 1;
 233                 dir.hide_empty_directories = 1;
 234         }
 235         x = git_path("info/exclude");
 236         if (file_exists(x))
 237                 add_excludes_from_file(&dir, x);
 238
 239         read_directory(&dir, ".", "", 0);
 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_clean = 0;
 257                         wt_status_print_header("Untracked files", use_add_msg);
 258                         shown_header = 1;
 259                 }
 260                 color_printf(color(WT_STATUS_HEADER), "#\t");
 261                 color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
 262                                 ent->len, ent->name);
 263         }
 264 }
 265
 266 static void wt_status_print_verbose(struct wt_status *s)
 267 {
 268         struct rev_info rev;
 269         init_revisions(&rev, NULL);
 270         setup_revisions(0, NULL, &rev, s->reference);
 271         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 272         rev.diffopt.detect_rename = 1;
 273         run_diff_index(&rev, 1);
 274 }
 275
 276 void wt_status_print(struct wt_status *s)
 277 {
 278         unsigned char sha1[20];
 279         s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 280
 281         if (s->branch)
 282                 color_printf_ln(color(WT_STATUS_HEADER),
 283                         "# On branch %s", s->branch);
 284
 285         if (s->is_initial) {
 286                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 287                 color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
 288                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 289                 wt_status_print_initial(s);
 290         }
 291         else {
 292                 wt_status_print_updated(s);
 293                 discard_cache();
 294         }
 295
 296         wt_status_print_changed(s);
 297         wt_status_print_untracked(s);
 298
 299         if (s->verbose && !s->is_initial)
 300                 wt_status_print_verbose(s);
 301         if (!s->commitable) {
 302                 if (s->amend)
 303                         printf("# No changes\n");
 304                 else if (s->workdir_clean)
 305                         printf(s->is_initial
 306                                ? "nothing to commit\n"
 307                                : "nothing to commit (working directory matches HEAD)\n");
 308                 else
 309                         printf("no changes added to commit (use \"git add\" and/or \"git commit [-a|-i|-o]\")\n");
 310         }
 311 }
 312
 313 int git_status_config(const char *k, const char *v)
 314 {
 315         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 316                 wt_status_use_color = git_config_colorbool(k, v);
 317                 return 0;
 318         }
 319         if (!strncmp(k, "status.color.", 13) || !strncmp(k, "color.status", 13)) {
 320                 int slot = parse_status_slot(k, 13);
 321                 color_parse(v, k, wt_status_colors[slot]);
 322         }
 323         return git_default_config(k, v);
 324 }