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                 return WT_STATUS_UPDATED;
  26         if (!strcasecmp(var+offset, "changed"))
  27                 return WT_STATUS_CHANGED;
  28         if (!strcasecmp(var+offset, "untracked"))
  29                 return WT_STATUS_UNTRACKED;
  30         die("bad config variable '%s'", var);
  31 }
  32
  33 static const char* color(int slot)
  34 {
  35         return wt_status_use_color ? wt_status_colors[slot] : "";
  36 }
  37
  38 void wt_status_prepare(struct wt_status *s)
  39 {
  40         unsigned char sha1[20];
  41         const char *head;
  42
  43         s->is_initial = get_sha1("HEAD", sha1) ? 1 : 0;
  44
  45         head = resolve_ref("HEAD", sha1, 0, NULL);
  46         s->branch = head ? xstrdup(head) : NULL;
  47
  48         s->reference = "HEAD";
  49         s->amend = 0;
  50         s->verbose = 0;
  51         s->commitable = 0;
  52         s->untracked = 0;
  53 }
  54
  55 static void wt_status_print_header(const char *main, const char *sub)
  56 {
  57         const char *c = color(WT_STATUS_HEADER);
  58         color_printf_ln(c, "# %s:", main);
  59         color_printf_ln(c, "#   (%s)", sub);
  60         color_printf_ln(c, "#");
  61 }
  62
  63 static void wt_status_print_trailer(void)
  64 {
  65         color_printf_ln(color(WT_STATUS_HEADER), "#");
  66 }
  67
  68 static const char *quote_crlf(const char *in, char *buf, size_t sz)
  69 {
  70         const char *scan;
  71         char *out;
  72         const char *ret = in;
  73
  74         for (scan = in, out = buf; *scan; scan++) {
  75                 int ch = *scan;
  76                 int quoted;
  77
  78                 switch (ch) {
  79                 case '\n':
  80                         quoted = 'n';
  81                         break;
  82                 case '\r':
  83                         quoted = 'r';
  84                         break;
  85                 default:
  86                         *out++ = ch;
  87                         continue;
  88                 }
  89                 *out++ = '\\';
  90                 *out++ = quoted;
  91                 ret = buf;
  92         }
  93         *out = '\0';
  94         return ret;
  95 }
  96
  97 static void wt_status_print_filepair(int t, struct diff_filepair *p)
  98 {
  99         const char *c = color(t);
 100         const char *one, *two;
 101         char onebuf[PATH_MAX], twobuf[PATH_MAX];
 102
 103         one = quote_crlf(p->one->path, onebuf, sizeof(onebuf));
 104         two = quote_crlf(p->two->path, twobuf, sizeof(twobuf));
 105
 106         color_printf(color(WT_STATUS_HEADER), "#\t");
 107         switch (p->status) {
 108         case DIFF_STATUS_ADDED:
 109                 color_printf(c, "new file:   %s", one);
 110                 break;
 111         case DIFF_STATUS_COPIED:
 112                 color_printf(c, "copied:     %s -> %s", one, two);
 113                 break;
 114         case DIFF_STATUS_DELETED:
 115                 color_printf(c, "deleted:    %s", one);
 116                 break;
 117         case DIFF_STATUS_MODIFIED:
 118                 color_printf(c, "modified:   %s", one);
 119                 break;
 120         case DIFF_STATUS_RENAMED:
 121                 color_printf(c, "renamed:    %s -> %s", one, two);
 122                 break;
 123         case DIFF_STATUS_TYPE_CHANGED:
 124                 color_printf(c, "typechange: %s", one);
 125                 break;
 126         case DIFF_STATUS_UNKNOWN:
 127                 color_printf(c, "unknown:    %s", one);
 128                 break;
 129         case DIFF_STATUS_UNMERGED:
 130                 color_printf(c, "unmerged:   %s", one);
 131                 break;
 132         default:
 133                 die("bug: unhandled diff status %c", p->status);
 134         }
 135         printf("\n");
 136 }
 137
 138 static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 139                 struct diff_options *options,
 140                 void *data)
 141 {
 142         struct wt_status *s = data;
 143         int shown_header = 0;
 144         int i;
 145         for (i = 0; i < q->nr; i++) {
 146                 if (q->queue[i]->status == 'U')
 147                         continue;
 148                 if (!shown_header) {
 149                         wt_status_print_header("Updated but not checked in",
 150                                         "will commit");
 151                         s->commitable = 1;
 152                         shown_header = 1;
 153                 }
 154                 wt_status_print_filepair(WT_STATUS_UPDATED, q->queue[i]);
 155         }
 156         if (shown_header)
 157                 wt_status_print_trailer();
 158 }
 159
 160 static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 161                         struct diff_options *options,
 162                         void *data)
 163 {
 164         int i;
 165         if (q->nr)
 166                 wt_status_print_header("Changed but not updated", use_add_msg);
 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", use_add_msg);
 253                         shown_header = 1;
 254                 }
 255                 color_printf(color(WT_STATUS_HEADER), "#\t");
 256                 color_printf_ln(color(WT_STATUS_UNTRACKED), "%.*s",
 257                                 ent->len, ent->name);
 258         }
 259 }
 260
 261 static void wt_status_print_verbose(struct wt_status *s)
 262 {
 263         struct rev_info rev;
 264         init_revisions(&rev, NULL);
 265         setup_revisions(0, NULL, &rev, s->reference);
 266         rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 267         rev.diffopt.detect_rename = 1;
 268         run_diff_index(&rev, 1);
 269 }
 270
 271 void wt_status_print(struct wt_status *s)
 272 {
 273         if (s->branch && strcmp(s->branch, "refs/heads/master"))
 274                 color_printf_ln(color(WT_STATUS_HEADER),
 275                         "# On branch %s", s->branch);
 276
 277         if (s->is_initial) {
 278                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 279                 color_printf_ln(color(WT_STATUS_HEADER), "# Initial commit");
 280                 color_printf_ln(color(WT_STATUS_HEADER), "#");
 281                 wt_status_print_initial(s);
 282         }
 283         else {
 284                 wt_status_print_updated(s);
 285                 discard_cache();
 286         }
 287
 288         wt_status_print_changed(s);
 289         wt_status_print_untracked(s);
 290
 291         if (s->verbose && !s->is_initial)
 292                 wt_status_print_verbose(s);
 293         if (!s->commitable)
 294                 printf("%s (%s)\n",
 295                         s->amend ? "# No changes" : "nothing to commit",
 296                         use_add_msg);
 297 }
 298
 299 int git_status_config(const char *k, const char *v)
 300 {
 301         if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 302                 wt_status_use_color = git_config_colorbool(k, v);
 303                 return 0;
 304         }
 305         if (!strncmp(k, "status.color.", 13) || !strncmp(k, "color.status", 13)) {
 306                 int slot = parse_status_slot(k, 13);
 307                 color_parse(v, k, wt_status_colors[slot]);
 308         }
 309         return git_default_config(k, v);
 310 }