Andrew's git / gitweb.git / wt-status.c
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wt-status.con commit De-emphasise the symbolic link documentation. (22b1c7e)
   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
  11int wt_status_use_color = 0;
  12static 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
  19static 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
  32static const char* color(int slot)
  33{
  34        return wt_status_use_color ? wt_status_colors[slot] : "";
  35}
  36
  37void 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
  54static 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
  62static void wt_status_print_trailer(void)
  63{
  64        color_printf_ln(color(WT_STATUS_HEADER), "#");
  65}
  66
  67static 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
  96static 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
 137static 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
 159static 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
 173void 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
 194static 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
 206static 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
 217static 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
 262static 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
 272void 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
 298int 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}