Andrew's git - gitweb.git/blob

05414bb9e9dd064f65ff21ae2c6c53f996a6bd21
   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
  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 const char use_add_msg[] =
  20"use \"git add <file>...\" to update what will be committed";
  21static const char use_add_rm_msg[] =
  22"use \"git add/rm <file>...\" to update what will be committed";
  23static const char use_add_to_include_msg[] =
  24"use \"git add <file>...\" to include in what will be committed";
  25
  26static int parse_status_slot(const char *var, int offset)
  27{
  28        if (!strcasecmp(var+offset, "header"))
  29                return WT_STATUS_HEADER;
  30        if (!strcasecmp(var+offset, "updated")
  31                || !strcasecmp(var+offset, "added"))
  32                return WT_STATUS_UPDATED;
  33        if (!strcasecmp(var+offset, "changed"))
  34                return WT_STATUS_CHANGED;
  35        if (!strcasecmp(var+offset, "untracked"))
  36                return WT_STATUS_UNTRACKED;
  37        die("bad config variable '%s'", var);
  38}
  39
  40static const char* color(int slot)
  41{
  42        return wt_status_use_color ? wt_status_colors[slot] : "";
  43}
  44
  45void wt_status_prepare(struct wt_status *s)
  46{
  47        unsigned char sha1[20];
  48        const char *head;
  49
  50        memset(s, 0, sizeof(*s));
  51        head = resolve_ref("HEAD", sha1, 0, NULL);
  52        s->branch = head ? xstrdup(head) : NULL;
  53        s->reference = "HEAD";
  54        s->fp = stdout;
  55        s->index_file = get_index_file();
  56}
  57
  58static void wt_status_print_cached_header(struct wt_status *s)
  59{
  60        const char *c = color(WT_STATUS_HEADER);
  61        color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  62        if (s->reference) {
  63                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  64        } else {
  65                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  66        }
  67        color_fprintf_ln(s->fp, c, "#");
  68}
  69
  70static void wt_status_print_header(struct wt_status *s,
  71                                   const char *main, const char *sub)
  72{
  73        const char *c = color(WT_STATUS_HEADER);
  74        color_fprintf_ln(s->fp, c, "# %s:", main);
  75        color_fprintf_ln(s->fp, c, "#   (%s)", sub);
  76        color_fprintf_ln(s->fp, c, "#");
  77}
  78
  79static void wt_status_print_trailer(struct wt_status *s)
  80{
  81        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
  82}
  83
  84static char *quote_path(const char *in, int len,
  85                        struct strbuf *out, const char *prefix)
  86{
  87        if (len < 0)
  88                len = strlen(in);
  89
  90        strbuf_grow(out, len);
  91        strbuf_setlen(out, 0);
  92        if (prefix) {
  93                int off = 0;
  94                while (prefix[off] && off < len && prefix[off] == in[off])
  95                        if (prefix[off] == '/') {
  96                                prefix += off + 1;
  97                                in += off + 1;
  98                                len -= off + 1;
  99                                off = 0;
 100                        } else
 101                                off++;
 102
 103                for (; *prefix; prefix++)
 104                        if (*prefix == '/')
 105                                strbuf_addstr(out, "../");
 106        }
 107
 108        for ( ; len > 0; in++, len--) {
 109                int ch = *in;
 110
 111                switch (ch) {
 112                case '\n':
 113                        strbuf_addstr(out, "\\n");
 114                        break;
 115                case '\r':
 116                        strbuf_addstr(out, "\\r");
 117                        break;
 118                default:
 119                        strbuf_addch(out, ch);
 120                        continue;
 121                }
 122        }
 123
 124        if (!out->len)
 125                strbuf_addstr(out, "./");
 126
 127        return out->buf;
 128}
 129
 130static void wt_status_print_filepair(struct wt_status *s,
 131                                     int t, struct diff_filepair *p)
 132{
 133        const char *c = color(t);
 134        const char *one, *two;
 135        struct strbuf onebuf, twobuf;
 136
 137        strbuf_init(&onebuf, 0);
 138        strbuf_init(&twobuf, 0);
 139        one = quote_path(p->one->path, -1, &onebuf, s->prefix);
 140        two = quote_path(p->two->path, -1, &twobuf, s->prefix);
 141
 142        color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 143        switch (p->status) {
 144        case DIFF_STATUS_ADDED:
 145                color_fprintf(s->fp, c, "new file:   %s", one);
 146                break;
 147        case DIFF_STATUS_COPIED:
 148                color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 149                break;
 150        case DIFF_STATUS_DELETED:
 151                color_fprintf(s->fp, c, "deleted:    %s", one);
 152                break;
 153        case DIFF_STATUS_MODIFIED:
 154                color_fprintf(s->fp, c, "modified:   %s", one);
 155                break;
 156        case DIFF_STATUS_RENAMED:
 157                color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 158                break;
 159        case DIFF_STATUS_TYPE_CHANGED:
 160                color_fprintf(s->fp, c, "typechange: %s", one);
 161                break;
 162        case DIFF_STATUS_UNKNOWN:
 163                color_fprintf(s->fp, c, "unknown:    %s", one);
 164                break;
 165        case DIFF_STATUS_UNMERGED:
 166                color_fprintf(s->fp, c, "unmerged:   %s", one);
 167                break;
 168        default:
 169                die("bug: unhandled diff status %c", p->status);
 170        }
 171        fprintf(s->fp, "\n");
 172        strbuf_release(&onebuf);
 173        strbuf_release(&twobuf);
 174}
 175
 176static void wt_status_print_updated_cb(struct diff_queue_struct *q,
 177                struct diff_options *options,
 178                void *data)
 179{
 180        struct wt_status *s = data;
 181        int shown_header = 0;
 182        int i;
 183        for (i = 0; i < q->nr; i++) {
 184                if (q->queue[i]->status == 'U')
 185                        continue;
 186                if (!shown_header) {
 187                        wt_status_print_cached_header(s);
 188                        s->commitable = 1;
 189                        shown_header = 1;
 190                }
 191                wt_status_print_filepair(s, WT_STATUS_UPDATED, q->queue[i]);
 192        }
 193        if (shown_header)
 194                wt_status_print_trailer(s);
 195}
 196
 197static void wt_status_print_changed_cb(struct diff_queue_struct *q,
 198                        struct diff_options *options,
 199                        void *data)
 200{
 201        struct wt_status *s = data;
 202        int i;
 203        if (q->nr) {
 204                const char *msg = use_add_msg;
 205                s->workdir_dirty = 1;
 206                for (i = 0; i < q->nr; i++)
 207                        if (q->queue[i]->status == DIFF_STATUS_DELETED) {
 208                                msg = use_add_rm_msg;
 209                                break;
 210                        }
 211                wt_status_print_header(s, "Changed but not updated", msg);
 212        }
 213        for (i = 0; i < q->nr; i++)
 214                wt_status_print_filepair(s, WT_STATUS_CHANGED, q->queue[i]);
 215        if (q->nr)
 216                wt_status_print_trailer(s);
 217}
 218
 219static void wt_read_cache(struct wt_status *s)
 220{
 221        discard_cache();
 222        read_cache_from(s->index_file);
 223}
 224
 225static void wt_status_print_initial(struct wt_status *s)
 226{
 227        int i;
 228        struct strbuf buf;
 229
 230        strbuf_init(&buf, 0);
 231        wt_read_cache(s);
 232        if (active_nr) {
 233                s->commitable = 1;
 234                wt_status_print_cached_header(s);
 235        }
 236        for (i = 0; i < active_nr; i++) {
 237                color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 238                color_fprintf_ln(s->fp, color(WT_STATUS_UPDATED), "new file: %s",
 239                                quote_path(active_cache[i]->name, -1,
 240                                           &buf, s->prefix));
 241        }
 242        if (active_nr)
 243                wt_status_print_trailer(s);
 244        strbuf_release(&buf);
 245}
 246
 247static void wt_status_print_updated(struct wt_status *s)
 248{
 249        struct rev_info rev;
 250        init_revisions(&rev, NULL);
 251        setup_revisions(0, NULL, &rev, s->reference);
 252        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 253        rev.diffopt.format_callback = wt_status_print_updated_cb;
 254        rev.diffopt.format_callback_data = s;
 255        rev.diffopt.detect_rename = 1;
 256        rev.diffopt.rename_limit = 100;
 257        rev.diffopt.break_opt = 0;
 258        wt_read_cache(s);
 259        run_diff_index(&rev, 1);
 260}
 261
 262static void wt_status_print_changed(struct wt_status *s)
 263{
 264        struct rev_info rev;
 265        init_revisions(&rev, "");
 266        setup_revisions(0, NULL, &rev, NULL);
 267        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 268        rev.diffopt.format_callback = wt_status_print_changed_cb;
 269        rev.diffopt.format_callback_data = s;
 270        wt_read_cache(s);
 271        run_diff_files(&rev, 0);
 272}
 273
 274static void wt_status_print_untracked(struct wt_status *s)
 275{
 276        struct dir_struct dir;
 277        int i;
 278        int shown_header = 0;
 279        struct strbuf buf;
 280
 281        strbuf_init(&buf, 0);
 282        memset(&dir, 0, sizeof(dir));
 283
 284        if (!s->untracked) {
 285                dir.show_other_directories = 1;
 286                dir.hide_empty_directories = 1;
 287        }
 288        setup_standard_excludes(&dir);
 289
 290        read_directory(&dir, ".", "", 0, NULL);
 291        for(i = 0; i < dir.nr; i++) {
 292                /* check for matching entry, which is unmerged; lifted from
 293                 * builtin-ls-files:show_other_files */
 294                struct dir_entry *ent = dir.entries[i];
 295                int pos = cache_name_pos(ent->name, ent->len);
 296                struct cache_entry *ce;
 297                if (0 <= pos)
 298                        die("bug in wt_status_print_untracked");
 299                pos = -pos - 1;
 300                if (pos < active_nr) {
 301                        ce = active_cache[pos];
 302                        if (ce_namelen(ce) == ent->len &&
 303                            !memcmp(ce->name, ent->name, ent->len))
 304                                continue;
 305                }
 306                if (!shown_header) {
 307                        s->workdir_untracked = 1;
 308                        wt_status_print_header(s, "Untracked files",
 309                                               use_add_to_include_msg);
 310                        shown_header = 1;
 311                }
 312                color_fprintf(s->fp, color(WT_STATUS_HEADER), "#\t");
 313                color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED), "%s",
 314                                quote_path(ent->name, ent->len,
 315                                        &buf, s->prefix));
 316        }
 317        strbuf_release(&buf);
 318}
 319
 320static void wt_status_print_verbose(struct wt_status *s)
 321{
 322        struct rev_info rev;
 323        int saved_stdout;
 324
 325        fflush(s->fp);
 326
 327        /* Sigh, the entire diff machinery is hardcoded to output to
 328         * stdout.  Do the dup-dance...*/
 329        saved_stdout = dup(STDOUT_FILENO);
 330        if (saved_stdout < 0 ||dup2(fileno(s->fp), STDOUT_FILENO) < 0)
 331                die("couldn't redirect stdout\n");
 332
 333        init_revisions(&rev, NULL);
 334        setup_revisions(0, NULL, &rev, s->reference);
 335        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 336        rev.diffopt.detect_rename = 1;
 337        wt_read_cache(s);
 338        run_diff_index(&rev, 1);
 339
 340        fflush(stdout);
 341
 342        if (dup2(saved_stdout, STDOUT_FILENO) < 0)
 343                die("couldn't restore stdout\n");
 344        close(saved_stdout);
 345}
 346
 347void wt_status_print(struct wt_status *s)
 348{
 349        unsigned char sha1[20];
 350        s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 351
 352        if (s->branch) {
 353                const char *on_what = "On branch ";
 354                const char *branch_name = s->branch;
 355                if (!prefixcmp(branch_name, "refs/heads/"))
 356                        branch_name += 11;
 357                else if (!strcmp(branch_name, "HEAD")) {
 358                        branch_name = "";
 359                        on_what = "Not currently on any branch.";
 360                }
 361                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER),
 362                        "# %s%s", on_what, branch_name);
 363        }
 364
 365        if (s->is_initial) {
 366                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 367                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "# Initial commit");
 368                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER), "#");
 369                wt_status_print_initial(s);
 370        }
 371        else {
 372                wt_status_print_updated(s);
 373        }
 374
 375        wt_status_print_changed(s);
 376        wt_status_print_untracked(s);
 377
 378        if (s->verbose && !s->is_initial)
 379                wt_status_print_verbose(s);
 380        if (!s->commitable) {
 381                if (s->amend)
 382                        fprintf(s->fp, "# No changes\n");
 383                else if (s->workdir_dirty)
 384                        printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 385                else if (s->workdir_untracked)
 386                        printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 387                else if (s->is_initial)
 388                        printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 389                else
 390                        printf("nothing to commit (working directory clean)\n");
 391        }
 392}
 393
 394int git_status_config(const char *k, const char *v)
 395{
 396        if (!strcmp(k, "status.color") || !strcmp(k, "color.status")) {
 397                wt_status_use_color = git_config_colorbool(k, v, -1);
 398                return 0;
 399        }
 400        if (!prefixcmp(k, "status.color.") || !prefixcmp(k, "color.status.")) {
 401                int slot = parse_status_slot(k, 13);
 402                color_parse(v, k, wt_status_colors[slot]);
 403        }
 404        return git_default_config(k, v);
 405}