wt-status.con commit Merge branch 'sb/more-repo-in-api' into md/list-objects-filter-by-depth (b9fbc04)
   1#include "cache.h"
   2#include "wt-status.h"
   3#include "object.h"
   4#include "dir.h"
   5#include "commit.h"
   6#include "diff.h"
   7#include "revision.h"
   8#include "diffcore.h"
   9#include "quote.h"
  10#include "run-command.h"
  11#include "argv-array.h"
  12#include "remote.h"
  13#include "refs.h"
  14#include "submodule.h"
  15#include "column.h"
  16#include "strbuf.h"
  17#include "utf8.h"
  18#include "worktree.h"
  19#include "lockfile.h"
  20
  21static const char cut_line[] =
  22"------------------------ >8 ------------------------\n";
  23
  24static char default_wt_status_colors[][COLOR_MAXLEN] = {
  25        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  26        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  27        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  28        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  29        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  30        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  31        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  32        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  33        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  34};
  35
  36static const char *color(int slot, struct wt_status *s)
  37{
  38        const char *c = "";
  39        if (want_color(s->use_color))
  40                c = s->color_palette[slot];
  41        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  42                c = s->color_palette[WT_STATUS_HEADER];
  43        return c;
  44}
  45
  46static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  47                const char *fmt, va_list ap, const char *trail)
  48{
  49        struct strbuf sb = STRBUF_INIT;
  50        struct strbuf linebuf = STRBUF_INIT;
  51        const char *line, *eol;
  52
  53        strbuf_vaddf(&sb, fmt, ap);
  54        if (!sb.len) {
  55                if (s->display_comment_prefix) {
  56                        strbuf_addch(&sb, comment_line_char);
  57                        if (!trail)
  58                                strbuf_addch(&sb, ' ');
  59                }
  60                color_print_strbuf(s->fp, color, &sb);
  61                if (trail)
  62                        fprintf(s->fp, "%s", trail);
  63                strbuf_release(&sb);
  64                return;
  65        }
  66        for (line = sb.buf; *line; line = eol + 1) {
  67                eol = strchr(line, '\n');
  68
  69                strbuf_reset(&linebuf);
  70                if (at_bol && s->display_comment_prefix) {
  71                        strbuf_addch(&linebuf, comment_line_char);
  72                        if (*line != '\n' && *line != '\t')
  73                                strbuf_addch(&linebuf, ' ');
  74                }
  75                if (eol)
  76                        strbuf_add(&linebuf, line, eol - line);
  77                else
  78                        strbuf_addstr(&linebuf, line);
  79                color_print_strbuf(s->fp, color, &linebuf);
  80                if (eol)
  81                        fprintf(s->fp, "\n");
  82                else
  83                        break;
  84                at_bol = 1;
  85        }
  86        if (trail)
  87                fprintf(s->fp, "%s", trail);
  88        strbuf_release(&linebuf);
  89        strbuf_release(&sb);
  90}
  91
  92void status_printf_ln(struct wt_status *s, const char *color,
  93                        const char *fmt, ...)
  94{
  95        va_list ap;
  96
  97        va_start(ap, fmt);
  98        status_vprintf(s, 1, color, fmt, ap, "\n");
  99        va_end(ap);
 100}
 101
 102void status_printf(struct wt_status *s, const char *color,
 103                        const char *fmt, ...)
 104{
 105        va_list ap;
 106
 107        va_start(ap, fmt);
 108        status_vprintf(s, 1, color, fmt, ap, NULL);
 109        va_end(ap);
 110}
 111
 112static void status_printf_more(struct wt_status *s, const char *color,
 113                               const char *fmt, ...)
 114{
 115        va_list ap;
 116
 117        va_start(ap, fmt);
 118        status_vprintf(s, 0, color, fmt, ap, NULL);
 119        va_end(ap);
 120}
 121
 122void wt_status_prepare(struct wt_status *s)
 123{
 124        memset(s, 0, sizeof(*s));
 125        memcpy(s->color_palette, default_wt_status_colors,
 126               sizeof(default_wt_status_colors));
 127        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 128        s->use_color = -1;
 129        s->relative_paths = 1;
 130        s->branch = resolve_refdup("HEAD", 0, NULL, NULL);
 131        s->reference = "HEAD";
 132        s->fp = stdout;
 133        s->index_file = get_index_file();
 134        s->change.strdup_strings = 1;
 135        s->untracked.strdup_strings = 1;
 136        s->ignored.strdup_strings = 1;
 137        s->show_branch = -1;  /* unspecified */
 138        s->show_stash = 0;
 139        s->ahead_behind_flags = AHEAD_BEHIND_UNSPECIFIED;
 140        s->display_comment_prefix = 0;
 141        s->detect_rename = -1;
 142        s->rename_score = -1;
 143        s->rename_limit = -1;
 144}
 145
 146static void wt_longstatus_print_unmerged_header(struct wt_status *s)
 147{
 148        int i;
 149        int del_mod_conflict = 0;
 150        int both_deleted = 0;
 151        int not_deleted = 0;
 152        const char *c = color(WT_STATUS_HEADER, s);
 153
 154        status_printf_ln(s, c, _("Unmerged paths:"));
 155
 156        for (i = 0; i < s->change.nr; i++) {
 157                struct string_list_item *it = &(s->change.items[i]);
 158                struct wt_status_change_data *d = it->util;
 159
 160                switch (d->stagemask) {
 161                case 0:
 162                        break;
 163                case 1:
 164                        both_deleted = 1;
 165                        break;
 166                case 3:
 167                case 5:
 168                        del_mod_conflict = 1;
 169                        break;
 170                default:
 171                        not_deleted = 1;
 172                        break;
 173                }
 174        }
 175
 176        if (!s->hints)
 177                return;
 178        if (s->whence != FROM_COMMIT)
 179                ;
 180        else if (!s->is_initial)
 181                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 182        else
 183                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 184
 185        if (!both_deleted) {
 186                if (!del_mod_conflict)
 187                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 188                else
 189                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 190        } else if (!del_mod_conflict && !not_deleted) {
 191                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 192        } else {
 193                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 194        }
 195        status_printf_ln(s, c, "%s", "");
 196}
 197
 198static void wt_longstatus_print_cached_header(struct wt_status *s)
 199{
 200        const char *c = color(WT_STATUS_HEADER, s);
 201
 202        status_printf_ln(s, c, _("Changes to be committed:"));
 203        if (!s->hints)
 204                return;
 205        if (s->whence != FROM_COMMIT)
 206                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 207        else if (!s->is_initial)
 208                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 209        else
 210                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 211        status_printf_ln(s, c, "%s", "");
 212}
 213
 214static void wt_longstatus_print_dirty_header(struct wt_status *s,
 215                                             int has_deleted,
 216                                             int has_dirty_submodules)
 217{
 218        const char *c = color(WT_STATUS_HEADER, s);
 219
 220        status_printf_ln(s, c, _("Changes not staged for commit:"));
 221        if (!s->hints)
 222                return;
 223        if (!has_deleted)
 224                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 225        else
 226                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 227        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 228        if (has_dirty_submodules)
 229                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 230        status_printf_ln(s, c, "%s", "");
 231}
 232
 233static void wt_longstatus_print_other_header(struct wt_status *s,
 234                                             const char *what,
 235                                             const char *how)
 236{
 237        const char *c = color(WT_STATUS_HEADER, s);
 238        status_printf_ln(s, c, "%s:", what);
 239        if (!s->hints)
 240                return;
 241        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 242        status_printf_ln(s, c, "%s", "");
 243}
 244
 245static void wt_longstatus_print_trailer(struct wt_status *s)
 246{
 247        status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 248}
 249
 250#define quote_path quote_path_relative
 251
 252static const char *wt_status_unmerged_status_string(int stagemask)
 253{
 254        switch (stagemask) {
 255        case 1:
 256                return _("both deleted:");
 257        case 2:
 258                return _("added by us:");
 259        case 3:
 260                return _("deleted by them:");
 261        case 4:
 262                return _("added by them:");
 263        case 5:
 264                return _("deleted by us:");
 265        case 6:
 266                return _("both added:");
 267        case 7:
 268                return _("both modified:");
 269        default:
 270                BUG("unhandled unmerged status %x", stagemask);
 271        }
 272}
 273
 274static const char *wt_status_diff_status_string(int status)
 275{
 276        switch (status) {
 277        case DIFF_STATUS_ADDED:
 278                return _("new file:");
 279        case DIFF_STATUS_COPIED:
 280                return _("copied:");
 281        case DIFF_STATUS_DELETED:
 282                return _("deleted:");
 283        case DIFF_STATUS_MODIFIED:
 284                return _("modified:");
 285        case DIFF_STATUS_RENAMED:
 286                return _("renamed:");
 287        case DIFF_STATUS_TYPE_CHANGED:
 288                return _("typechange:");
 289        case DIFF_STATUS_UNKNOWN:
 290                return _("unknown:");
 291        case DIFF_STATUS_UNMERGED:
 292                return _("unmerged:");
 293        default:
 294                return NULL;
 295        }
 296}
 297
 298static int maxwidth(const char *(*label)(int), int minval, int maxval)
 299{
 300        int result = 0, i;
 301
 302        for (i = minval; i <= maxval; i++) {
 303                const char *s = label(i);
 304                int len = s ? utf8_strwidth(s) : 0;
 305                if (len > result)
 306                        result = len;
 307        }
 308        return result;
 309}
 310
 311static void wt_longstatus_print_unmerged_data(struct wt_status *s,
 312                                              struct string_list_item *it)
 313{
 314        const char *c = color(WT_STATUS_UNMERGED, s);
 315        struct wt_status_change_data *d = it->util;
 316        struct strbuf onebuf = STRBUF_INIT;
 317        static char *padding;
 318        static int label_width;
 319        const char *one, *how;
 320        int len;
 321
 322        if (!padding) {
 323                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 324                label_width += strlen(" ");
 325                padding = xmallocz(label_width);
 326                memset(padding, ' ', label_width);
 327        }
 328
 329        one = quote_path(it->string, s->prefix, &onebuf);
 330        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 331
 332        how = wt_status_unmerged_status_string(d->stagemask);
 333        len = label_width - utf8_strwidth(how);
 334        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 335        strbuf_release(&onebuf);
 336}
 337
 338static void wt_longstatus_print_change_data(struct wt_status *s,
 339                                            int change_type,
 340                                            struct string_list_item *it)
 341{
 342        struct wt_status_change_data *d = it->util;
 343        const char *c = color(change_type, s);
 344        int status;
 345        char *one_name;
 346        char *two_name;
 347        const char *one, *two;
 348        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 349        struct strbuf extra = STRBUF_INIT;
 350        static char *padding;
 351        static int label_width;
 352        const char *what;
 353        int len;
 354
 355        if (!padding) {
 356                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 357                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 358                label_width += strlen(" ");
 359                padding = xmallocz(label_width);
 360                memset(padding, ' ', label_width);
 361        }
 362
 363        one_name = two_name = it->string;
 364        switch (change_type) {
 365        case WT_STATUS_UPDATED:
 366                status = d->index_status;
 367                break;
 368        case WT_STATUS_CHANGED:
 369                if (d->new_submodule_commits || d->dirty_submodule) {
 370                        strbuf_addstr(&extra, " (");
 371                        if (d->new_submodule_commits)
 372                                strbuf_addstr(&extra, _("new commits, "));
 373                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 374                                strbuf_addstr(&extra, _("modified content, "));
 375                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 376                                strbuf_addstr(&extra, _("untracked content, "));
 377                        strbuf_setlen(&extra, extra.len - 2);
 378                        strbuf_addch(&extra, ')');
 379                }
 380                status = d->worktree_status;
 381                break;
 382        default:
 383                BUG("unhandled change_type %d in wt_longstatus_print_change_data",
 384                    change_type);
 385        }
 386
 387        /*
 388         * Only pick up the rename it's relevant. If the rename is for
 389         * the changed section and we're printing the updated section,
 390         * ignore it.
 391         */
 392        if (d->rename_status == status)
 393                one_name = d->rename_source;
 394
 395        one = quote_path(one_name, s->prefix, &onebuf);
 396        two = quote_path(two_name, s->prefix, &twobuf);
 397
 398        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 399        what = wt_status_diff_status_string(status);
 400        if (!what)
 401                BUG("unhandled diff status %c", status);
 402        len = label_width - utf8_strwidth(what);
 403        assert(len >= 0);
 404        if (one_name != two_name)
 405                status_printf_more(s, c, "%s%.*s%s -> %s",
 406                                   what, len, padding, one, two);
 407        else
 408                status_printf_more(s, c, "%s%.*s%s",
 409                                   what, len, padding, one);
 410        if (extra.len) {
 411                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 412                strbuf_release(&extra);
 413        }
 414        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 415        strbuf_release(&onebuf);
 416        strbuf_release(&twobuf);
 417}
 418
 419static char short_submodule_status(struct wt_status_change_data *d)
 420{
 421        if (d->new_submodule_commits)
 422                return 'M';
 423        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 424                return 'm';
 425        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 426                return '?';
 427        return d->worktree_status;
 428}
 429
 430static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 431                                         struct diff_options *options,
 432                                         void *data)
 433{
 434        struct wt_status *s = data;
 435        int i;
 436
 437        if (!q->nr)
 438                return;
 439        s->workdir_dirty = 1;
 440        for (i = 0; i < q->nr; i++) {
 441                struct diff_filepair *p;
 442                struct string_list_item *it;
 443                struct wt_status_change_data *d;
 444
 445                p = q->queue[i];
 446                it = string_list_insert(&s->change, p->two->path);
 447                d = it->util;
 448                if (!d) {
 449                        d = xcalloc(1, sizeof(*d));
 450                        it->util = d;
 451                }
 452                if (!d->worktree_status)
 453                        d->worktree_status = p->status;
 454                if (S_ISGITLINK(p->two->mode)) {
 455                        d->dirty_submodule = p->two->dirty_submodule;
 456                        d->new_submodule_commits = !oideq(&p->one->oid,
 457                                                          &p->two->oid);
 458                        if (s->status_format == STATUS_FORMAT_SHORT)
 459                                d->worktree_status = short_submodule_status(d);
 460                }
 461
 462                switch (p->status) {
 463                case DIFF_STATUS_ADDED:
 464                        d->mode_worktree = p->two->mode;
 465                        break;
 466
 467                case DIFF_STATUS_DELETED:
 468                        d->mode_index = p->one->mode;
 469                        oidcpy(&d->oid_index, &p->one->oid);
 470                        /* mode_worktree is zero for a delete. */
 471                        break;
 472
 473                case DIFF_STATUS_COPIED:
 474                case DIFF_STATUS_RENAMED:
 475                        if (d->rename_status)
 476                                BUG("multiple renames on the same target? how?");
 477                        d->rename_source = xstrdup(p->one->path);
 478                        d->rename_score = p->score * 100 / MAX_SCORE;
 479                        d->rename_status = p->status;
 480                        /* fallthru */
 481                case DIFF_STATUS_MODIFIED:
 482                case DIFF_STATUS_TYPE_CHANGED:
 483                case DIFF_STATUS_UNMERGED:
 484                        d->mode_index = p->one->mode;
 485                        d->mode_worktree = p->two->mode;
 486                        oidcpy(&d->oid_index, &p->one->oid);
 487                        break;
 488
 489                default:
 490                        BUG("unhandled diff-files status '%c'", p->status);
 491                        break;
 492                }
 493
 494        }
 495}
 496
 497static int unmerged_mask(const char *path)
 498{
 499        int pos, mask;
 500        const struct cache_entry *ce;
 501
 502        pos = cache_name_pos(path, strlen(path));
 503        if (0 <= pos)
 504                return 0;
 505
 506        mask = 0;
 507        pos = -pos-1;
 508        while (pos < active_nr) {
 509                ce = active_cache[pos++];
 510                if (strcmp(ce->name, path) || !ce_stage(ce))
 511                        break;
 512                mask |= (1 << (ce_stage(ce) - 1));
 513        }
 514        return mask;
 515}
 516
 517static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 518                                         struct diff_options *options,
 519                                         void *data)
 520{
 521        struct wt_status *s = data;
 522        int i;
 523
 524        for (i = 0; i < q->nr; i++) {
 525                struct diff_filepair *p;
 526                struct string_list_item *it;
 527                struct wt_status_change_data *d;
 528
 529                p = q->queue[i];
 530                it = string_list_insert(&s->change, p->two->path);
 531                d = it->util;
 532                if (!d) {
 533                        d = xcalloc(1, sizeof(*d));
 534                        it->util = d;
 535                }
 536                if (!d->index_status)
 537                        d->index_status = p->status;
 538                switch (p->status) {
 539                case DIFF_STATUS_ADDED:
 540                        /* Leave {mode,oid}_head zero for an add. */
 541                        d->mode_index = p->two->mode;
 542                        oidcpy(&d->oid_index, &p->two->oid);
 543                        s->committable = 1;
 544                        break;
 545                case DIFF_STATUS_DELETED:
 546                        d->mode_head = p->one->mode;
 547                        oidcpy(&d->oid_head, &p->one->oid);
 548                        s->committable = 1;
 549                        /* Leave {mode,oid}_index zero for a delete. */
 550                        break;
 551
 552                case DIFF_STATUS_COPIED:
 553                case DIFF_STATUS_RENAMED:
 554                        if (d->rename_status)
 555                                BUG("multiple renames on the same target? how?");
 556                        d->rename_source = xstrdup(p->one->path);
 557                        d->rename_score = p->score * 100 / MAX_SCORE;
 558                        d->rename_status = p->status;
 559                        /* fallthru */
 560                case DIFF_STATUS_MODIFIED:
 561                case DIFF_STATUS_TYPE_CHANGED:
 562                        d->mode_head = p->one->mode;
 563                        d->mode_index = p->two->mode;
 564                        oidcpy(&d->oid_head, &p->one->oid);
 565                        oidcpy(&d->oid_index, &p->two->oid);
 566                        s->committable = 1;
 567                        break;
 568                case DIFF_STATUS_UNMERGED:
 569                        d->stagemask = unmerged_mask(p->two->path);
 570                        /*
 571                         * Don't bother setting {mode,oid}_{head,index} since the print
 572                         * code will output the stage values directly and not use the
 573                         * values in these fields.
 574                         */
 575                        break;
 576
 577                default:
 578                        BUG("unhandled diff-index status '%c'", p->status);
 579                        break;
 580                }
 581        }
 582}
 583
 584static void wt_status_collect_changes_worktree(struct wt_status *s)
 585{
 586        struct rev_info rev;
 587
 588        repo_init_revisions(the_repository, &rev, NULL);
 589        setup_revisions(0, NULL, &rev, NULL);
 590        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 591        rev.diffopt.flags.dirty_submodules = 1;
 592        rev.diffopt.ita_invisible_in_index = 1;
 593        if (!s->show_untracked_files)
 594                rev.diffopt.flags.ignore_untracked_in_submodules = 1;
 595        if (s->ignore_submodule_arg) {
 596                rev.diffopt.flags.override_submodule_config = 1;
 597                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 598        }
 599        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 600        rev.diffopt.format_callback_data = s;
 601        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 602        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 603        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 604        copy_pathspec(&rev.prune_data, &s->pathspec);
 605        run_diff_files(&rev, 0);
 606}
 607
 608static void wt_status_collect_changes_index(struct wt_status *s)
 609{
 610        struct rev_info rev;
 611        struct setup_revision_opt opt;
 612
 613        repo_init_revisions(the_repository, &rev, NULL);
 614        memset(&opt, 0, sizeof(opt));
 615        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
 616        setup_revisions(0, NULL, &rev, &opt);
 617
 618        rev.diffopt.flags.override_submodule_config = 1;
 619        rev.diffopt.ita_invisible_in_index = 1;
 620        if (s->ignore_submodule_arg) {
 621                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 622        } else {
 623                /*
 624                 * Unless the user did explicitly request a submodule ignore
 625                 * mode by passing a command line option we do not ignore any
 626                 * changed submodule SHA-1s when comparing index and HEAD, no
 627                 * matter what is configured. Otherwise the user won't be
 628                 * shown any submodules she manually added (and which are
 629                 * staged to be committed), which would be really confusing.
 630                 */
 631                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 632        }
 633
 634        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 635        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 636        rev.diffopt.format_callback_data = s;
 637        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 638        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 639        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 640        copy_pathspec(&rev.prune_data, &s->pathspec);
 641        run_diff_index(&rev, 1);
 642}
 643
 644static void wt_status_collect_changes_initial(struct wt_status *s)
 645{
 646        int i;
 647
 648        for (i = 0; i < active_nr; i++) {
 649                struct string_list_item *it;
 650                struct wt_status_change_data *d;
 651                const struct cache_entry *ce = active_cache[i];
 652
 653                if (!ce_path_match(&the_index, ce, &s->pathspec, NULL))
 654                        continue;
 655                if (ce_intent_to_add(ce))
 656                        continue;
 657                it = string_list_insert(&s->change, ce->name);
 658                d = it->util;
 659                if (!d) {
 660                        d = xcalloc(1, sizeof(*d));
 661                        it->util = d;
 662                }
 663                if (ce_stage(ce)) {
 664                        d->index_status = DIFF_STATUS_UNMERGED;
 665                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 666                        /*
 667                         * Don't bother setting {mode,oid}_{head,index} since the print
 668                         * code will output the stage values directly and not use the
 669                         * values in these fields.
 670                         */
 671                        s->committable = 1;
 672                } else {
 673                        d->index_status = DIFF_STATUS_ADDED;
 674                        /* Leave {mode,oid}_head zero for adds. */
 675                        d->mode_index = ce->ce_mode;
 676                        oidcpy(&d->oid_index, &ce->oid);
 677                        s->committable = 1;
 678                }
 679        }
 680}
 681
 682static void wt_status_collect_untracked(struct wt_status *s)
 683{
 684        int i;
 685        struct dir_struct dir;
 686        uint64_t t_begin = getnanotime();
 687
 688        if (!s->show_untracked_files)
 689                return;
 690
 691        memset(&dir, 0, sizeof(dir));
 692        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 693                dir.flags |=
 694                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 695        if (s->show_ignored_mode) {
 696                dir.flags |= DIR_SHOW_IGNORED_TOO;
 697
 698                if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
 699                        dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
 700        } else {
 701                dir.untracked = the_index.untracked;
 702        }
 703
 704        setup_standard_excludes(&dir);
 705
 706        fill_directory(&dir, &the_index, &s->pathspec);
 707
 708        for (i = 0; i < dir.nr; i++) {
 709                struct dir_entry *ent = dir.entries[i];
 710                if (cache_name_is_other(ent->name, ent->len) &&
 711                    dir_path_match(&the_index, ent, &s->pathspec, 0, NULL))
 712                        string_list_insert(&s->untracked, ent->name);
 713                free(ent);
 714        }
 715
 716        for (i = 0; i < dir.ignored_nr; i++) {
 717                struct dir_entry *ent = dir.ignored[i];
 718                if (cache_name_is_other(ent->name, ent->len) &&
 719                    dir_path_match(&the_index, ent, &s->pathspec, 0, NULL))
 720                        string_list_insert(&s->ignored, ent->name);
 721                free(ent);
 722        }
 723
 724        free(dir.entries);
 725        free(dir.ignored);
 726        clear_directory(&dir);
 727
 728        if (advice_status_u_option)
 729                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 730}
 731
 732static int has_unmerged(struct wt_status *s)
 733{
 734        int i;
 735
 736        for (i = 0; i < s->change.nr; i++) {
 737                struct wt_status_change_data *d;
 738                d = s->change.items[i].util;
 739                if (d->stagemask)
 740                        return 1;
 741        }
 742        return 0;
 743}
 744
 745void wt_status_collect(struct wt_status *s)
 746{
 747        wt_status_collect_changes_worktree(s);
 748        if (s->is_initial)
 749                wt_status_collect_changes_initial(s);
 750        else
 751                wt_status_collect_changes_index(s);
 752        wt_status_collect_untracked(s);
 753
 754        wt_status_get_state(&s->state, s->branch && !strcmp(s->branch, "HEAD"));
 755        if (s->state.merge_in_progress && !has_unmerged(s))
 756                s->committable = 1;
 757}
 758
 759void wt_status_collect_free_buffers(struct wt_status *s)
 760{
 761        free(s->state.branch);
 762        free(s->state.onto);
 763        free(s->state.detached_from);
 764}
 765
 766static void wt_longstatus_print_unmerged(struct wt_status *s)
 767{
 768        int shown_header = 0;
 769        int i;
 770
 771        for (i = 0; i < s->change.nr; i++) {
 772                struct wt_status_change_data *d;
 773                struct string_list_item *it;
 774                it = &(s->change.items[i]);
 775                d = it->util;
 776                if (!d->stagemask)
 777                        continue;
 778                if (!shown_header) {
 779                        wt_longstatus_print_unmerged_header(s);
 780                        shown_header = 1;
 781                }
 782                wt_longstatus_print_unmerged_data(s, it);
 783        }
 784        if (shown_header)
 785                wt_longstatus_print_trailer(s);
 786
 787}
 788
 789static void wt_longstatus_print_updated(struct wt_status *s)
 790{
 791        int shown_header = 0;
 792        int i;
 793
 794        for (i = 0; i < s->change.nr; i++) {
 795                struct wt_status_change_data *d;
 796                struct string_list_item *it;
 797                it = &(s->change.items[i]);
 798                d = it->util;
 799                if (!d->index_status ||
 800                    d->index_status == DIFF_STATUS_UNMERGED)
 801                        continue;
 802                if (!shown_header) {
 803                        wt_longstatus_print_cached_header(s);
 804                        shown_header = 1;
 805                }
 806                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 807        }
 808        if (shown_header)
 809                wt_longstatus_print_trailer(s);
 810}
 811
 812/*
 813 * -1 : has delete
 814 *  0 : no change
 815 *  1 : some change but no delete
 816 */
 817static int wt_status_check_worktree_changes(struct wt_status *s,
 818                                             int *dirty_submodules)
 819{
 820        int i;
 821        int changes = 0;
 822
 823        *dirty_submodules = 0;
 824
 825        for (i = 0; i < s->change.nr; i++) {
 826                struct wt_status_change_data *d;
 827                d = s->change.items[i].util;
 828                if (!d->worktree_status ||
 829                    d->worktree_status == DIFF_STATUS_UNMERGED)
 830                        continue;
 831                if (!changes)
 832                        changes = 1;
 833                if (d->dirty_submodule)
 834                        *dirty_submodules = 1;
 835                if (d->worktree_status == DIFF_STATUS_DELETED)
 836                        changes = -1;
 837        }
 838        return changes;
 839}
 840
 841static void wt_longstatus_print_changed(struct wt_status *s)
 842{
 843        int i, dirty_submodules;
 844        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 845
 846        if (!worktree_changes)
 847                return;
 848
 849        wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 850
 851        for (i = 0; i < s->change.nr; i++) {
 852                struct wt_status_change_data *d;
 853                struct string_list_item *it;
 854                it = &(s->change.items[i]);
 855                d = it->util;
 856                if (!d->worktree_status ||
 857                    d->worktree_status == DIFF_STATUS_UNMERGED)
 858                        continue;
 859                wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 860        }
 861        wt_longstatus_print_trailer(s);
 862}
 863
 864static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
 865                            const char *email, timestamp_t timestamp, int tz,
 866                            const char *message, void *cb_data)
 867{
 868        int *c = cb_data;
 869        (*c)++;
 870        return 0;
 871}
 872
 873static void wt_longstatus_print_stash_summary(struct wt_status *s)
 874{
 875        int stash_count = 0;
 876
 877        for_each_reflog_ent("refs/stash", stash_count_refs, &stash_count);
 878        if (stash_count > 0)
 879                status_printf_ln(s, GIT_COLOR_NORMAL,
 880                                 Q_("Your stash currently has %d entry",
 881                                    "Your stash currently has %d entries", stash_count),
 882                                 stash_count);
 883}
 884
 885static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 886{
 887        struct child_process sm_summary = CHILD_PROCESS_INIT;
 888        struct strbuf cmd_stdout = STRBUF_INIT;
 889        struct strbuf summary = STRBUF_INIT;
 890        char *summary_content;
 891
 892        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 893                         s->index_file);
 894
 895        argv_array_push(&sm_summary.args, "submodule");
 896        argv_array_push(&sm_summary.args, "summary");
 897        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 898        argv_array_push(&sm_summary.args, "--for-status");
 899        argv_array_push(&sm_summary.args, "--summary-limit");
 900        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 901        if (!uncommitted)
 902                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 903
 904        sm_summary.git_cmd = 1;
 905        sm_summary.no_stdin = 1;
 906
 907        capture_command(&sm_summary, &cmd_stdout, 1024);
 908
 909        /* prepend header, only if there's an actual output */
 910        if (cmd_stdout.len) {
 911                if (uncommitted)
 912                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 913                else
 914                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 915                strbuf_addstr(&summary, "\n\n");
 916        }
 917        strbuf_addbuf(&summary, &cmd_stdout);
 918        strbuf_release(&cmd_stdout);
 919
 920        if (s->display_comment_prefix) {
 921                size_t len;
 922                summary_content = strbuf_detach(&summary, &len);
 923                strbuf_add_commented_lines(&summary, summary_content, len);
 924                free(summary_content);
 925        }
 926
 927        fputs(summary.buf, s->fp);
 928        strbuf_release(&summary);
 929}
 930
 931static void wt_longstatus_print_other(struct wt_status *s,
 932                                      struct string_list *l,
 933                                      const char *what,
 934                                      const char *how)
 935{
 936        int i;
 937        struct strbuf buf = STRBUF_INIT;
 938        static struct string_list output = STRING_LIST_INIT_DUP;
 939        struct column_options copts;
 940
 941        if (!l->nr)
 942                return;
 943
 944        wt_longstatus_print_other_header(s, what, how);
 945
 946        for (i = 0; i < l->nr; i++) {
 947                struct string_list_item *it;
 948                const char *path;
 949                it = &(l->items[i]);
 950                path = quote_path(it->string, s->prefix, &buf);
 951                if (column_active(s->colopts)) {
 952                        string_list_append(&output, path);
 953                        continue;
 954                }
 955                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 956                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 957                                   "%s\n", path);
 958        }
 959
 960        strbuf_release(&buf);
 961        if (!column_active(s->colopts))
 962                goto conclude;
 963
 964        strbuf_addf(&buf, "%s%s\t%s",
 965                    color(WT_STATUS_HEADER, s),
 966                    s->display_comment_prefix ? "#" : "",
 967                    color(WT_STATUS_UNTRACKED, s));
 968        memset(&copts, 0, sizeof(copts));
 969        copts.padding = 1;
 970        copts.indent = buf.buf;
 971        if (want_color(s->use_color))
 972                copts.nl = GIT_COLOR_RESET "\n";
 973        print_columns(&output, s->colopts, &copts);
 974        string_list_clear(&output, 0);
 975        strbuf_release(&buf);
 976conclude:
 977        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 978}
 979
 980size_t wt_status_locate_end(const char *s, size_t len)
 981{
 982        const char *p;
 983        struct strbuf pattern = STRBUF_INIT;
 984
 985        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
 986        if (starts_with(s, pattern.buf + 1))
 987                len = 0;
 988        else if ((p = strstr(s, pattern.buf)))
 989                len = p - s + 1;
 990        strbuf_release(&pattern);
 991        return len;
 992}
 993
 994void wt_status_add_cut_line(FILE *fp)
 995{
 996        const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
 997        struct strbuf buf = STRBUF_INIT;
 998
 999        fprintf(fp, "%c %s", comment_line_char, cut_line);
1000        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
1001        fputs(buf.buf, fp);
1002        strbuf_release(&buf);
1003}
1004
1005static void wt_longstatus_print_verbose(struct wt_status *s)
1006{
1007        struct rev_info rev;
1008        struct setup_revision_opt opt;
1009        int dirty_submodules;
1010        const char *c = color(WT_STATUS_HEADER, s);
1011
1012        repo_init_revisions(the_repository, &rev, NULL);
1013        rev.diffopt.flags.allow_textconv = 1;
1014        rev.diffopt.ita_invisible_in_index = 1;
1015
1016        memset(&opt, 0, sizeof(opt));
1017        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
1018        setup_revisions(0, NULL, &rev, &opt);
1019
1020        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
1021        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
1022        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
1023        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
1024        rev.diffopt.file = s->fp;
1025        rev.diffopt.close_file = 0;
1026        /*
1027         * If we're not going to stdout, then we definitely don't
1028         * want color, since we are going to the commit message
1029         * file (and even the "auto" setting won't work, since it
1030         * will have checked isatty on stdout). But we then do want
1031         * to insert the scissor line here to reliably remove the
1032         * diff before committing.
1033         */
1034        if (s->fp != stdout) {
1035                rev.diffopt.use_color = 0;
1036                wt_status_add_cut_line(s->fp);
1037        }
1038        if (s->verbose > 1 && s->committable) {
1039                /* print_updated() printed a header, so do we */
1040                if (s->fp != stdout)
1041                        wt_longstatus_print_trailer(s);
1042                status_printf_ln(s, c, _("Changes to be committed:"));
1043                rev.diffopt.a_prefix = "c/";
1044                rev.diffopt.b_prefix = "i/";
1045        } /* else use prefix as per user config */
1046        run_diff_index(&rev, 1);
1047        if (s->verbose > 1 &&
1048            wt_status_check_worktree_changes(s, &dirty_submodules)) {
1049                status_printf_ln(s, c,
1050                        "--------------------------------------------------");
1051                status_printf_ln(s, c, _("Changes not staged for commit:"));
1052                setup_work_tree();
1053                rev.diffopt.a_prefix = "i/";
1054                rev.diffopt.b_prefix = "w/";
1055                run_diff_files(&rev, 0);
1056        }
1057}
1058
1059static void wt_longstatus_print_tracking(struct wt_status *s)
1060{
1061        struct strbuf sb = STRBUF_INIT;
1062        const char *cp, *ep, *branch_name;
1063        struct branch *branch;
1064        char comment_line_string[3];
1065        int i;
1066
1067        assert(s->branch && !s->is_initial);
1068        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
1069                return;
1070        branch = branch_get(branch_name);
1071        if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
1072                return;
1073
1074        i = 0;
1075        if (s->display_comment_prefix) {
1076                comment_line_string[i++] = comment_line_char;
1077                comment_line_string[i++] = ' ';
1078        }
1079        comment_line_string[i] = '\0';
1080
1081        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
1082                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1083                                 "%s%.*s", comment_line_string,
1084                                 (int)(ep - cp), cp);
1085        if (s->display_comment_prefix)
1086                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
1087                                 comment_line_char);
1088        else
1089                fputs("\n", s->fp);
1090        strbuf_release(&sb);
1091}
1092
1093static void show_merge_in_progress(struct wt_status *s,
1094                                   const char *color)
1095{
1096        if (has_unmerged(s)) {
1097                status_printf_ln(s, color, _("You have unmerged paths."));
1098                if (s->hints) {
1099                        status_printf_ln(s, color,
1100                                         _("  (fix conflicts and run \"git commit\")"));
1101                        status_printf_ln(s, color,
1102                                         _("  (use \"git merge --abort\" to abort the merge)"));
1103                }
1104        } else {
1105                status_printf_ln(s, color,
1106                        _("All conflicts fixed but you are still merging."));
1107                if (s->hints)
1108                        status_printf_ln(s, color,
1109                                _("  (use \"git commit\" to conclude merge)"));
1110        }
1111        wt_longstatus_print_trailer(s);
1112}
1113
1114static void show_am_in_progress(struct wt_status *s,
1115                                const char *color)
1116{
1117        status_printf_ln(s, color,
1118                _("You are in the middle of an am session."));
1119        if (s->state.am_empty_patch)
1120                status_printf_ln(s, color,
1121                        _("The current patch is empty."));
1122        if (s->hints) {
1123                if (!s->state.am_empty_patch)
1124                        status_printf_ln(s, color,
1125                                _("  (fix conflicts and then run \"git am --continue\")"));
1126                status_printf_ln(s, color,
1127                        _("  (use \"git am --skip\" to skip this patch)"));
1128                status_printf_ln(s, color,
1129                        _("  (use \"git am --abort\" to restore the original branch)"));
1130        }
1131        wt_longstatus_print_trailer(s);
1132}
1133
1134static char *read_line_from_git_path(const char *filename)
1135{
1136        struct strbuf buf = STRBUF_INIT;
1137        FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
1138
1139        if (!fp) {
1140                strbuf_release(&buf);
1141                return NULL;
1142        }
1143        strbuf_getline_lf(&buf, fp);
1144        if (!fclose(fp)) {
1145                return strbuf_detach(&buf, NULL);
1146        } else {
1147                strbuf_release(&buf);
1148                return NULL;
1149        }
1150}
1151
1152static int split_commit_in_progress(struct wt_status *s)
1153{
1154        int split_in_progress = 0;
1155        char *head, *orig_head, *rebase_amend, *rebase_orig_head;
1156
1157        if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1158            !s->branch || strcmp(s->branch, "HEAD"))
1159                return 0;
1160
1161        head = read_line_from_git_path("HEAD");
1162        orig_head = read_line_from_git_path("ORIG_HEAD");
1163        rebase_amend = read_line_from_git_path("rebase-merge/amend");
1164        rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1165
1166        if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
1167                ; /* fall through, no split in progress */
1168        else if (!strcmp(rebase_amend, rebase_orig_head))
1169                split_in_progress = !!strcmp(head, rebase_amend);
1170        else if (strcmp(orig_head, rebase_orig_head))
1171                split_in_progress = 1;
1172
1173        free(head);
1174        free(orig_head);
1175        free(rebase_amend);
1176        free(rebase_orig_head);
1177
1178        return split_in_progress;
1179}
1180
1181/*
1182 * Turn
1183 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1184 * into
1185 * "pick d6a2f03 some message"
1186 *
1187 * The function assumes that the line does not contain useless spaces
1188 * before or after the command.
1189 */
1190static void abbrev_sha1_in_line(struct strbuf *line)
1191{
1192        struct strbuf **split;
1193        int i;
1194
1195        if (starts_with(line->buf, "exec ") ||
1196            starts_with(line->buf, "x "))
1197                return;
1198
1199        split = strbuf_split_max(line, ' ', 3);
1200        if (split[0] && split[1]) {
1201                struct object_id oid;
1202
1203                /*
1204                 * strbuf_split_max left a space. Trim it and re-add
1205                 * it after abbreviation.
1206                 */
1207                strbuf_trim(split[1]);
1208                if (!get_oid(split[1]->buf, &oid)) {
1209                        strbuf_reset(split[1]);
1210                        strbuf_add_unique_abbrev(split[1], &oid,
1211                                                 DEFAULT_ABBREV);
1212                        strbuf_addch(split[1], ' ');
1213                        strbuf_reset(line);
1214                        for (i = 0; split[i]; i++)
1215                                strbuf_addbuf(line, split[i]);
1216                }
1217        }
1218        strbuf_list_free(split);
1219}
1220
1221static int read_rebase_todolist(const char *fname, struct string_list *lines)
1222{
1223        struct strbuf line = STRBUF_INIT;
1224        FILE *f = fopen(git_path("%s", fname), "r");
1225
1226        if (!f) {
1227                if (errno == ENOENT)
1228                        return -1;
1229                die_errno("Could not open file %s for reading",
1230                          git_path("%s", fname));
1231        }
1232        while (!strbuf_getline_lf(&line, f)) {
1233                if (line.len && line.buf[0] == comment_line_char)
1234                        continue;
1235                strbuf_trim(&line);
1236                if (!line.len)
1237                        continue;
1238                abbrev_sha1_in_line(&line);
1239                string_list_append(lines, line.buf);
1240        }
1241        fclose(f);
1242        strbuf_release(&line);
1243        return 0;
1244}
1245
1246static void show_rebase_information(struct wt_status *s,
1247                                    const char *color)
1248{
1249        if (s->state.rebase_interactive_in_progress) {
1250                int i;
1251                int nr_lines_to_show = 2;
1252
1253                struct string_list have_done = STRING_LIST_INIT_DUP;
1254                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1255
1256                read_rebase_todolist("rebase-merge/done", &have_done);
1257                if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1258                                         &yet_to_do))
1259                        status_printf_ln(s, color,
1260                                _("git-rebase-todo is missing."));
1261                if (have_done.nr == 0)
1262                        status_printf_ln(s, color, _("No commands done."));
1263                else {
1264                        status_printf_ln(s, color,
1265                                Q_("Last command done (%d command done):",
1266                                        "Last commands done (%d commands done):",
1267                                        have_done.nr),
1268                                have_done.nr);
1269                        for (i = (have_done.nr > nr_lines_to_show)
1270                                ? have_done.nr - nr_lines_to_show : 0;
1271                                i < have_done.nr;
1272                                i++)
1273                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1274                        if (have_done.nr > nr_lines_to_show && s->hints)
1275                                status_printf_ln(s, color,
1276                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1277                }
1278
1279                if (yet_to_do.nr == 0)
1280                        status_printf_ln(s, color,
1281                                         _("No commands remaining."));
1282                else {
1283                        status_printf_ln(s, color,
1284                                Q_("Next command to do (%d remaining command):",
1285                                        "Next commands to do (%d remaining commands):",
1286                                        yet_to_do.nr),
1287                                yet_to_do.nr);
1288                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1289                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1290                        if (s->hints)
1291                                status_printf_ln(s, color,
1292                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1293                }
1294                string_list_clear(&yet_to_do, 0);
1295                string_list_clear(&have_done, 0);
1296        }
1297}
1298
1299static void print_rebase_state(struct wt_status *s,
1300                               const char *color)
1301{
1302        if (s->state.branch)
1303                status_printf_ln(s, color,
1304                                 _("You are currently rebasing branch '%s' on '%s'."),
1305                                 s->state.branch,
1306                                 s->state.onto);
1307        else
1308                status_printf_ln(s, color,
1309                                 _("You are currently rebasing."));
1310}
1311
1312static void show_rebase_in_progress(struct wt_status *s,
1313                                    const char *color)
1314{
1315        struct stat st;
1316
1317        show_rebase_information(s, color);
1318        if (has_unmerged(s)) {
1319                print_rebase_state(s, color);
1320                if (s->hints) {
1321                        status_printf_ln(s, color,
1322                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1323                        status_printf_ln(s, color,
1324                                _("  (use \"git rebase --skip\" to skip this patch)"));
1325                        status_printf_ln(s, color,
1326                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1327                }
1328        } else if (s->state.rebase_in_progress ||
1329                   !stat(git_path_merge_msg(the_repository), &st)) {
1330                print_rebase_state(s, color);
1331                if (s->hints)
1332                        status_printf_ln(s, color,
1333                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1334        } else if (split_commit_in_progress(s)) {
1335                if (s->state.branch)
1336                        status_printf_ln(s, color,
1337                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1338                                         s->state.branch,
1339                                         s->state.onto);
1340                else
1341                        status_printf_ln(s, color,
1342                                         _("You are currently splitting a commit during a rebase."));
1343                if (s->hints)
1344                        status_printf_ln(s, color,
1345                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1346        } else {
1347                if (s->state.branch)
1348                        status_printf_ln(s, color,
1349                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1350                                         s->state.branch,
1351                                         s->state.onto);
1352                else
1353                        status_printf_ln(s, color,
1354                                         _("You are currently editing a commit during a rebase."));
1355                if (s->hints && !s->amend) {
1356                        status_printf_ln(s, color,
1357                                _("  (use \"git commit --amend\" to amend the current commit)"));
1358                        status_printf_ln(s, color,
1359                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1360                }
1361        }
1362        wt_longstatus_print_trailer(s);
1363}
1364
1365static void show_cherry_pick_in_progress(struct wt_status *s,
1366                                         const char *color)
1367{
1368        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1369                        find_unique_abbrev(&s->state.cherry_pick_head_oid, DEFAULT_ABBREV));
1370        if (s->hints) {
1371                if (has_unmerged(s))
1372                        status_printf_ln(s, color,
1373                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1374                else
1375                        status_printf_ln(s, color,
1376                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1377                status_printf_ln(s, color,
1378                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1379        }
1380        wt_longstatus_print_trailer(s);
1381}
1382
1383static void show_revert_in_progress(struct wt_status *s,
1384                                    const char *color)
1385{
1386        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1387                         find_unique_abbrev(&s->state.revert_head_oid, DEFAULT_ABBREV));
1388        if (s->hints) {
1389                if (has_unmerged(s))
1390                        status_printf_ln(s, color,
1391                                _("  (fix conflicts and run \"git revert --continue\")"));
1392                else
1393                        status_printf_ln(s, color,
1394                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1395                status_printf_ln(s, color,
1396                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1397        }
1398        wt_longstatus_print_trailer(s);
1399}
1400
1401static void show_bisect_in_progress(struct wt_status *s,
1402                                    const char *color)
1403{
1404        if (s->state.branch)
1405                status_printf_ln(s, color,
1406                                 _("You are currently bisecting, started from branch '%s'."),
1407                                 s->state.branch);
1408        else
1409                status_printf_ln(s, color,
1410                                 _("You are currently bisecting."));
1411        if (s->hints)
1412                status_printf_ln(s, color,
1413                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1414        wt_longstatus_print_trailer(s);
1415}
1416
1417/*
1418 * Extract branch information from rebase/bisect
1419 */
1420static char *get_branch(const struct worktree *wt, const char *path)
1421{
1422        struct strbuf sb = STRBUF_INIT;
1423        struct object_id oid;
1424        const char *branch_name;
1425
1426        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1427                goto got_nothing;
1428
1429        while (sb.len && sb.buf[sb.len - 1] == '\n')
1430                strbuf_setlen(&sb, sb.len - 1);
1431        if (!sb.len)
1432                goto got_nothing;
1433        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1434                strbuf_remove(&sb, 0, branch_name - sb.buf);
1435        else if (starts_with(sb.buf, "refs/"))
1436                ;
1437        else if (!get_oid_hex(sb.buf, &oid)) {
1438                strbuf_reset(&sb);
1439                strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1440        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1441                goto got_nothing;
1442        else                    /* bisect */
1443                ;
1444        return strbuf_detach(&sb, NULL);
1445
1446got_nothing:
1447        strbuf_release(&sb);
1448        return NULL;
1449}
1450
1451struct grab_1st_switch_cbdata {
1452        struct strbuf buf;
1453        struct object_id noid;
1454};
1455
1456static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1457                           const char *email, timestamp_t timestamp, int tz,
1458                           const char *message, void *cb_data)
1459{
1460        struct grab_1st_switch_cbdata *cb = cb_data;
1461        const char *target = NULL, *end;
1462
1463        if (!skip_prefix(message, "checkout: moving from ", &message))
1464                return 0;
1465        target = strstr(message, " to ");
1466        if (!target)
1467                return 0;
1468        target += strlen(" to ");
1469        strbuf_reset(&cb->buf);
1470        oidcpy(&cb->noid, noid);
1471        end = strchrnul(target, '\n');
1472        strbuf_add(&cb->buf, target, end - target);
1473        if (!strcmp(cb->buf.buf, "HEAD")) {
1474                /* HEAD is relative. Resolve it to the right reflog entry. */
1475                strbuf_reset(&cb->buf);
1476                strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1477        }
1478        return 1;
1479}
1480
1481static void wt_status_get_detached_from(struct wt_status_state *state)
1482{
1483        struct grab_1st_switch_cbdata cb;
1484        struct commit *commit;
1485        struct object_id oid;
1486        char *ref = NULL;
1487
1488        strbuf_init(&cb.buf, 0);
1489        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1490                strbuf_release(&cb.buf);
1491                return;
1492        }
1493
1494        if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
1495            /* sha1 is a commit? match without further lookup */
1496            (oideq(&cb.noid, &oid) ||
1497             /* perhaps sha1 is a tag, try to dereference to a commit */
1498             ((commit = lookup_commit_reference_gently(the_repository, &oid, 1)) != NULL &&
1499              oideq(&cb.noid, &commit->object.oid)))) {
1500                const char *from = ref;
1501                if (!skip_prefix(from, "refs/tags/", &from))
1502                        skip_prefix(from, "refs/remotes/", &from);
1503                state->detached_from = xstrdup(from);
1504        } else
1505                state->detached_from =
1506                        xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
1507        oidcpy(&state->detached_oid, &cb.noid);
1508        state->detached_at = !get_oid("HEAD", &oid) &&
1509                             oideq(&oid, &state->detached_oid);
1510
1511        free(ref);
1512        strbuf_release(&cb.buf);
1513}
1514
1515int wt_status_check_rebase(const struct worktree *wt,
1516                           struct wt_status_state *state)
1517{
1518        struct stat st;
1519
1520        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1521                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1522                        state->am_in_progress = 1;
1523                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1524                                state->am_empty_patch = 1;
1525                } else {
1526                        state->rebase_in_progress = 1;
1527                        state->branch = get_branch(wt, "rebase-apply/head-name");
1528                        state->onto = get_branch(wt, "rebase-apply/onto");
1529                }
1530        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1531                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1532                        state->rebase_interactive_in_progress = 1;
1533                else
1534                        state->rebase_in_progress = 1;
1535                state->branch = get_branch(wt, "rebase-merge/head-name");
1536                state->onto = get_branch(wt, "rebase-merge/onto");
1537        } else
1538                return 0;
1539        return 1;
1540}
1541
1542int wt_status_check_bisect(const struct worktree *wt,
1543                           struct wt_status_state *state)
1544{
1545        struct stat st;
1546
1547        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1548                state->bisect_in_progress = 1;
1549                state->branch = get_branch(wt, "BISECT_START");
1550                return 1;
1551        }
1552        return 0;
1553}
1554
1555void wt_status_get_state(struct wt_status_state *state,
1556                         int get_detached_from)
1557{
1558        struct stat st;
1559        struct object_id oid;
1560
1561        if (!stat(git_path_merge_head(the_repository), &st)) {
1562                wt_status_check_rebase(NULL, state);
1563                state->merge_in_progress = 1;
1564        } else if (wt_status_check_rebase(NULL, state)) {
1565                ;               /* all set */
1566        } else if (!stat(git_path_cherry_pick_head(the_repository), &st) &&
1567                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
1568                state->cherry_pick_in_progress = 1;
1569                oidcpy(&state->cherry_pick_head_oid, &oid);
1570        }
1571        wt_status_check_bisect(NULL, state);
1572        if (!stat(git_path_revert_head(the_repository), &st) &&
1573            !get_oid("REVERT_HEAD", &oid)) {
1574                state->revert_in_progress = 1;
1575                oidcpy(&state->revert_head_oid, &oid);
1576        }
1577
1578        if (get_detached_from)
1579                wt_status_get_detached_from(state);
1580}
1581
1582static void wt_longstatus_print_state(struct wt_status *s)
1583{
1584        const char *state_color = color(WT_STATUS_HEADER, s);
1585        struct wt_status_state *state = &s->state;
1586
1587        if (state->merge_in_progress) {
1588                if (state->rebase_interactive_in_progress) {
1589                        show_rebase_information(s, state_color);
1590                        fputs("\n", s->fp);
1591                }
1592                show_merge_in_progress(s, state_color);
1593        } else if (state->am_in_progress)
1594                show_am_in_progress(s, state_color);
1595        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1596                show_rebase_in_progress(s, state_color);
1597        else if (state->cherry_pick_in_progress)
1598                show_cherry_pick_in_progress(s, state_color);
1599        else if (state->revert_in_progress)
1600                show_revert_in_progress(s, state_color);
1601        if (state->bisect_in_progress)
1602                show_bisect_in_progress(s, state_color);
1603}
1604
1605static void wt_longstatus_print(struct wt_status *s)
1606{
1607        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1608        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1609
1610        if (s->branch) {
1611                const char *on_what = _("On branch ");
1612                const char *branch_name = s->branch;
1613                if (!strcmp(branch_name, "HEAD")) {
1614                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1615                        if (s->state.rebase_in_progress ||
1616                            s->state.rebase_interactive_in_progress) {
1617                                if (s->state.rebase_interactive_in_progress)
1618                                        on_what = _("interactive rebase in progress; onto ");
1619                                else
1620                                        on_what = _("rebase in progress; onto ");
1621                                branch_name = s->state.onto;
1622                        } else if (s->state.detached_from) {
1623                                branch_name = s->state.detached_from;
1624                                if (s->state.detached_at)
1625                                        on_what = _("HEAD detached at ");
1626                                else
1627                                        on_what = _("HEAD detached from ");
1628                        } else {
1629                                branch_name = "";
1630                                on_what = _("Not currently on any branch.");
1631                        }
1632                } else
1633                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1634                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1635                status_printf_more(s, branch_status_color, "%s", on_what);
1636                status_printf_more(s, branch_color, "%s\n", branch_name);
1637                if (!s->is_initial)
1638                        wt_longstatus_print_tracking(s);
1639        }
1640
1641        wt_longstatus_print_state(s);
1642
1643        if (s->is_initial) {
1644                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1645                status_printf_ln(s, color(WT_STATUS_HEADER, s),
1646                                 s->commit_template
1647                                 ? _("Initial commit")
1648                                 : _("No commits yet"));
1649                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1650        }
1651
1652        wt_longstatus_print_updated(s);
1653        wt_longstatus_print_unmerged(s);
1654        wt_longstatus_print_changed(s);
1655        if (s->submodule_summary &&
1656            (!s->ignore_submodule_arg ||
1657             strcmp(s->ignore_submodule_arg, "all"))) {
1658                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1659                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1660        }
1661        if (s->show_untracked_files) {
1662                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1663                if (s->show_ignored_mode)
1664                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1665                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1666                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1667                        status_printf_ln(s, GIT_COLOR_NORMAL,
1668                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1669                                           "may speed it up, but you have to be careful not to forget to add\n"
1670                                           "new files yourself (see 'git help status')."),
1671                                         s->untracked_in_ms / 1000.0);
1672                }
1673        } else if (s->committable)
1674                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1675                        s->hints
1676                        ? _(" (use -u option to show untracked files)") : "");
1677
1678        if (s->verbose)
1679                wt_longstatus_print_verbose(s);
1680        if (!s->committable) {
1681                if (s->amend)
1682                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1683                else if (s->nowarn)
1684                        ; /* nothing */
1685                else if (s->workdir_dirty) {
1686                        if (s->hints)
1687                                printf(_("no changes added to commit "
1688                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1689                        else
1690                                printf(_("no changes added to commit\n"));
1691                } else if (s->untracked.nr) {
1692                        if (s->hints)
1693                                printf(_("nothing added to commit but untracked files "
1694                                         "present (use \"git add\" to track)\n"));
1695                        else
1696                                printf(_("nothing added to commit but untracked files present\n"));
1697                } else if (s->is_initial) {
1698                        if (s->hints)
1699                                printf(_("nothing to commit (create/copy files "
1700                                         "and use \"git add\" to track)\n"));
1701                        else
1702                                printf(_("nothing to commit\n"));
1703                } else if (!s->show_untracked_files) {
1704                        if (s->hints)
1705                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1706                        else
1707                                printf(_("nothing to commit\n"));
1708                } else
1709                        printf(_("nothing to commit, working tree clean\n"));
1710        }
1711        if(s->show_stash)
1712                wt_longstatus_print_stash_summary(s);
1713}
1714
1715static void wt_shortstatus_unmerged(struct string_list_item *it,
1716                           struct wt_status *s)
1717{
1718        struct wt_status_change_data *d = it->util;
1719        const char *how = "??";
1720
1721        switch (d->stagemask) {
1722        case 1: how = "DD"; break; /* both deleted */
1723        case 2: how = "AU"; break; /* added by us */
1724        case 3: how = "UD"; break; /* deleted by them */
1725        case 4: how = "UA"; break; /* added by them */
1726        case 5: how = "DU"; break; /* deleted by us */
1727        case 6: how = "AA"; break; /* both added */
1728        case 7: how = "UU"; break; /* both modified */
1729        }
1730        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1731        if (s->null_termination) {
1732                fprintf(stdout, " %s%c", it->string, 0);
1733        } else {
1734                struct strbuf onebuf = STRBUF_INIT;
1735                const char *one;
1736                one = quote_path(it->string, s->prefix, &onebuf);
1737                printf(" %s\n", one);
1738                strbuf_release(&onebuf);
1739        }
1740}
1741
1742static void wt_shortstatus_status(struct string_list_item *it,
1743                         struct wt_status *s)
1744{
1745        struct wt_status_change_data *d = it->util;
1746
1747        if (d->index_status)
1748                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1749        else
1750                putchar(' ');
1751        if (d->worktree_status)
1752                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1753        else
1754                putchar(' ');
1755        putchar(' ');
1756        if (s->null_termination) {
1757                fprintf(stdout, "%s%c", it->string, 0);
1758                if (d->rename_source)
1759                        fprintf(stdout, "%s%c", d->rename_source, 0);
1760        } else {
1761                struct strbuf onebuf = STRBUF_INIT;
1762                const char *one;
1763
1764                if (d->rename_source) {
1765                        one = quote_path(d->rename_source, s->prefix, &onebuf);
1766                        if (*one != '"' && strchr(one, ' ') != NULL) {
1767                                putchar('"');
1768                                strbuf_addch(&onebuf, '"');
1769                                one = onebuf.buf;
1770                        }
1771                        printf("%s -> ", one);
1772                        strbuf_release(&onebuf);
1773                }
1774                one = quote_path(it->string, s->prefix, &onebuf);
1775                if (*one != '"' && strchr(one, ' ') != NULL) {
1776                        putchar('"');
1777                        strbuf_addch(&onebuf, '"');
1778                        one = onebuf.buf;
1779                }
1780                printf("%s\n", one);
1781                strbuf_release(&onebuf);
1782        }
1783}
1784
1785static void wt_shortstatus_other(struct string_list_item *it,
1786                                 struct wt_status *s, const char *sign)
1787{
1788        if (s->null_termination) {
1789                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1790        } else {
1791                struct strbuf onebuf = STRBUF_INIT;
1792                const char *one;
1793                one = quote_path(it->string, s->prefix, &onebuf);
1794                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1795                printf(" %s\n", one);
1796                strbuf_release(&onebuf);
1797        }
1798}
1799
1800static void wt_shortstatus_print_tracking(struct wt_status *s)
1801{
1802        struct branch *branch;
1803        const char *header_color = color(WT_STATUS_HEADER, s);
1804        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1805        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1806
1807        const char *base;
1808        char *short_base;
1809        const char *branch_name;
1810        int num_ours, num_theirs, sti;
1811        int upstream_is_gone = 0;
1812
1813        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1814
1815        if (!s->branch)
1816                return;
1817        branch_name = s->branch;
1818
1819#define LABEL(string) (s->no_gettext ? (string) : _(string))
1820
1821        if (s->is_initial)
1822                color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
1823
1824        if (!strcmp(s->branch, "HEAD")) {
1825                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1826                              LABEL(N_("HEAD (no branch)")));
1827                goto conclude;
1828        }
1829
1830        skip_prefix(branch_name, "refs/heads/", &branch_name);
1831
1832        branch = branch_get(branch_name);
1833
1834        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1835
1836        sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
1837                                 s->ahead_behind_flags);
1838        if (sti < 0) {
1839                if (!base)
1840                        goto conclude;
1841
1842                upstream_is_gone = 1;
1843        }
1844
1845        short_base = shorten_unambiguous_ref(base, 0);
1846        color_fprintf(s->fp, header_color, "...");
1847        color_fprintf(s->fp, branch_color_remote, "%s", short_base);
1848        free(short_base);
1849
1850        if (!upstream_is_gone && !sti)
1851                goto conclude;
1852
1853        color_fprintf(s->fp, header_color, " [");
1854        if (upstream_is_gone) {
1855                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1856        } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
1857                color_fprintf(s->fp, header_color, LABEL(N_("different")));
1858        } else if (!num_ours) {
1859                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1860                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1861        } else if (!num_theirs) {
1862                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1863                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1864        } else {
1865                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1866                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1867                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1868                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1869        }
1870
1871        color_fprintf(s->fp, header_color, "]");
1872 conclude:
1873        fputc(s->null_termination ? '\0' : '\n', s->fp);
1874}
1875
1876static void wt_shortstatus_print(struct wt_status *s)
1877{
1878        struct string_list_item *it;
1879
1880        if (s->show_branch)
1881                wt_shortstatus_print_tracking(s);
1882
1883        for_each_string_list_item(it, &s->change) {
1884                struct wt_status_change_data *d = it->util;
1885
1886                if (d->stagemask)
1887                        wt_shortstatus_unmerged(it, s);
1888                else
1889                        wt_shortstatus_status(it, s);
1890        }
1891        for_each_string_list_item(it, &s->untracked)
1892                wt_shortstatus_other(it, s, "??");
1893
1894        for_each_string_list_item(it, &s->ignored)
1895                wt_shortstatus_other(it, s, "!!");
1896}
1897
1898static void wt_porcelain_print(struct wt_status *s)
1899{
1900        s->use_color = 0;
1901        s->relative_paths = 0;
1902        s->prefix = NULL;
1903        s->no_gettext = 1;
1904        wt_shortstatus_print(s);
1905}
1906
1907/*
1908 * Print branch information for porcelain v2 output.  These lines
1909 * are printed when the '--branch' parameter is given.
1910 *
1911 *    # branch.oid <commit><eol>
1912 *    # branch.head <head><eol>
1913 *   [# branch.upstream <upstream><eol>
1914 *   [# branch.ab +<ahead> -<behind><eol>]]
1915 *
1916 *      <commit> ::= the current commit hash or the the literal
1917 *                   "(initial)" to indicate an initialized repo
1918 *                   with no commits.
1919 *
1920 *        <head> ::= <branch_name> the current branch name or
1921 *                   "(detached)" literal when detached head or
1922 *                   "(unknown)" when something is wrong.
1923 *
1924 *    <upstream> ::= the upstream branch name, when set.
1925 *
1926 *       <ahead> ::= integer ahead value or '?'.
1927 *
1928 *      <behind> ::= integer behind value or '?'.
1929 *
1930 * The end-of-line is defined by the -z flag.
1931 *
1932 *                 <eol> ::= NUL when -z,
1933 *                           LF when NOT -z.
1934 *
1935 * When an upstream is set and present, the 'branch.ab' line will
1936 * be printed with the ahead/behind counts for the branch and the
1937 * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
1938 * are different, '?' will be substituted for the actual count.
1939 */
1940static void wt_porcelain_v2_print_tracking(struct wt_status *s)
1941{
1942        struct branch *branch;
1943        const char *base;
1944        const char *branch_name;
1945        int ab_info, nr_ahead, nr_behind;
1946        char eol = s->null_termination ? '\0' : '\n';
1947
1948        fprintf(s->fp, "# branch.oid %s%c",
1949                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
1950                        eol);
1951
1952        if (!s->branch)
1953                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
1954        else {
1955                if (!strcmp(s->branch, "HEAD")) {
1956                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
1957
1958                        if (s->state.rebase_in_progress ||
1959                            s->state.rebase_interactive_in_progress)
1960                                branch_name = s->state.onto;
1961                        else if (s->state.detached_from)
1962                                branch_name = s->state.detached_from;
1963                        else
1964                                branch_name = "";
1965                } else {
1966                        branch_name = NULL;
1967                        skip_prefix(s->branch, "refs/heads/", &branch_name);
1968
1969                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
1970                }
1971
1972                /* Lookup stats on the upstream tracking branch, if set. */
1973                branch = branch_get(branch_name);
1974                base = NULL;
1975                ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
1976                                             &base, s->ahead_behind_flags);
1977                if (base) {
1978                        base = shorten_unambiguous_ref(base, 0);
1979                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
1980                        free((char *)base);
1981
1982                        if (ab_info > 0) {
1983                                /* different */
1984                                if (nr_ahead || nr_behind)
1985                                        fprintf(s->fp, "# branch.ab +%d -%d%c",
1986                                                nr_ahead, nr_behind, eol);
1987                                else
1988                                        fprintf(s->fp, "# branch.ab +? -?%c",
1989                                                eol);
1990                        } else if (!ab_info) {
1991                                /* same */
1992                                fprintf(s->fp, "# branch.ab +0 -0%c", eol);
1993                        }
1994                }
1995        }
1996}
1997
1998/*
1999 * Convert various submodule status values into a
2000 * fixed-length string of characters in the buffer provided.
2001 */
2002static void wt_porcelain_v2_submodule_state(
2003        struct wt_status_change_data *d,
2004        char sub[5])
2005{
2006        if (S_ISGITLINK(d->mode_head) ||
2007                S_ISGITLINK(d->mode_index) ||
2008                S_ISGITLINK(d->mode_worktree)) {
2009                sub[0] = 'S';
2010                sub[1] = d->new_submodule_commits ? 'C' : '.';
2011                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2012                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2013        } else {
2014                sub[0] = 'N';
2015                sub[1] = '.';
2016                sub[2] = '.';
2017                sub[3] = '.';
2018        }
2019        sub[4] = 0;
2020}
2021
2022/*
2023 * Fix-up changed entries before we print them.
2024 */
2025static void wt_porcelain_v2_fix_up_changed(
2026        struct string_list_item *it,
2027        struct wt_status *s)
2028{
2029        struct wt_status_change_data *d = it->util;
2030
2031        if (!d->index_status) {
2032                /*
2033                 * This entry is unchanged in the index (relative to the head).
2034                 * Therefore, the collect_updated_cb was never called for this
2035                 * entry (during the head-vs-index scan) and so the head column
2036                 * fields were never set.
2037                 *
2038                 * We must have data for the index column (from the
2039                 * index-vs-worktree scan (otherwise, this entry should not be
2040                 * in the list of changes)).
2041                 *
2042                 * Copy index column fields to the head column, so that our
2043                 * output looks complete.
2044                 */
2045                assert(d->mode_head == 0);
2046                d->mode_head = d->mode_index;
2047                oidcpy(&d->oid_head, &d->oid_index);
2048        }
2049
2050        if (!d->worktree_status) {
2051                /*
2052                 * This entry is unchanged in the worktree (relative to the index).
2053                 * Therefore, the collect_changed_cb was never called for this entry
2054                 * (during the index-vs-worktree scan) and so the worktree column
2055                 * fields were never set.
2056                 *
2057                 * We must have data for the index column (from the head-vs-index
2058                 * scan).
2059                 *
2060                 * Copy the index column fields to the worktree column so that
2061                 * our output looks complete.
2062                 *
2063                 * Note that we only have a mode field in the worktree column
2064                 * because the scan code tries really hard to not have to compute it.
2065                 */
2066                assert(d->mode_worktree == 0);
2067                d->mode_worktree = d->mode_index;
2068        }
2069}
2070
2071/*
2072 * Print porcelain v2 info for tracked entries with changes.
2073 */
2074static void wt_porcelain_v2_print_changed_entry(
2075        struct string_list_item *it,
2076        struct wt_status *s)
2077{
2078        struct wt_status_change_data *d = it->util;
2079        struct strbuf buf = STRBUF_INIT;
2080        struct strbuf buf_from = STRBUF_INIT;
2081        const char *path = NULL;
2082        const char *path_from = NULL;
2083        char key[3];
2084        char submodule_token[5];
2085        char sep_char, eol_char;
2086
2087        wt_porcelain_v2_fix_up_changed(it, s);
2088        wt_porcelain_v2_submodule_state(d, submodule_token);
2089
2090        key[0] = d->index_status ? d->index_status : '.';
2091        key[1] = d->worktree_status ? d->worktree_status : '.';
2092        key[2] = 0;
2093
2094        if (s->null_termination) {
2095                /*
2096                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2097                 * A single NUL character separates them.
2098                 */
2099                sep_char = '\0';
2100                eol_char = '\0';
2101                path = it->string;
2102                path_from = d->rename_source;
2103        } else {
2104                /*
2105                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2106                 * The source path is only present when necessary.
2107                 * A single TAB separates them (because paths can contain spaces
2108                 * which are not escaped and C-quoting does escape TAB characters).
2109                 */
2110                sep_char = '\t';
2111                eol_char = '\n';
2112                path = quote_path(it->string, s->prefix, &buf);
2113                if (d->rename_source)
2114                        path_from = quote_path(d->rename_source, s->prefix, &buf_from);
2115        }
2116
2117        if (path_from)
2118                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2119                                key, submodule_token,
2120                                d->mode_head, d->mode_index, d->mode_worktree,
2121                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2122                                d->rename_status, d->rename_score,
2123                                path, sep_char, path_from, eol_char);
2124        else
2125                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2126                                key, submodule_token,
2127                                d->mode_head, d->mode_index, d->mode_worktree,
2128                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2129                                path, eol_char);
2130
2131        strbuf_release(&buf);
2132        strbuf_release(&buf_from);
2133}
2134
2135/*
2136 * Print porcelain v2 status info for unmerged entries.
2137 */
2138static void wt_porcelain_v2_print_unmerged_entry(
2139        struct string_list_item *it,
2140        struct wt_status *s)
2141{
2142        struct wt_status_change_data *d = it->util;
2143        const struct cache_entry *ce;
2144        struct strbuf buf_index = STRBUF_INIT;
2145        const char *path_index = NULL;
2146        int pos, stage, sum;
2147        struct {
2148                int mode;
2149                struct object_id oid;
2150        } stages[3];
2151        char *key;
2152        char submodule_token[5];
2153        char unmerged_prefix = 'u';
2154        char eol_char = s->null_termination ? '\0' : '\n';
2155
2156        wt_porcelain_v2_submodule_state(d, submodule_token);
2157
2158        switch (d->stagemask) {
2159        case 1: key = "DD"; break; /* both deleted */
2160        case 2: key = "AU"; break; /* added by us */
2161        case 3: key = "UD"; break; /* deleted by them */
2162        case 4: key = "UA"; break; /* added by them */
2163        case 5: key = "DU"; break; /* deleted by us */
2164        case 6: key = "AA"; break; /* both added */
2165        case 7: key = "UU"; break; /* both modified */
2166        default:
2167                BUG("unhandled unmerged status %x", d->stagemask);
2168        }
2169
2170        /*
2171         * Disregard d.aux.porcelain_v2 data that we accumulated
2172         * for the head and index columns during the scans and
2173         * replace with the actual stage data.
2174         *
2175         * Note that this is a last-one-wins for each the individual
2176         * stage [123] columns in the event of multiple cache entries
2177         * for same stage.
2178         */
2179        memset(stages, 0, sizeof(stages));
2180        sum = 0;
2181        pos = cache_name_pos(it->string, strlen(it->string));
2182        assert(pos < 0);
2183        pos = -pos-1;
2184        while (pos < active_nr) {
2185                ce = active_cache[pos++];
2186                stage = ce_stage(ce);
2187                if (strcmp(ce->name, it->string) || !stage)
2188                        break;
2189                stages[stage - 1].mode = ce->ce_mode;
2190                oidcpy(&stages[stage - 1].oid, &ce->oid);
2191                sum |= (1 << (stage - 1));
2192        }
2193        if (sum != d->stagemask)
2194                BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2195
2196        if (s->null_termination)
2197                path_index = it->string;
2198        else
2199                path_index = quote_path(it->string, s->prefix, &buf_index);
2200
2201        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2202                        unmerged_prefix, key, submodule_token,
2203                        stages[0].mode, /* stage 1 */
2204                        stages[1].mode, /* stage 2 */
2205                        stages[2].mode, /* stage 3 */
2206                        d->mode_worktree,
2207                        oid_to_hex(&stages[0].oid), /* stage 1 */
2208                        oid_to_hex(&stages[1].oid), /* stage 2 */
2209                        oid_to_hex(&stages[2].oid), /* stage 3 */
2210                        path_index,
2211                        eol_char);
2212
2213        strbuf_release(&buf_index);
2214}
2215
2216/*
2217 * Print porcelain V2 status info for untracked and ignored entries.
2218 */
2219static void wt_porcelain_v2_print_other(
2220        struct string_list_item *it,
2221        struct wt_status *s,
2222        char prefix)
2223{
2224        struct strbuf buf = STRBUF_INIT;
2225        const char *path;
2226        char eol_char;
2227
2228        if (s->null_termination) {
2229                path = it->string;
2230                eol_char = '\0';
2231        } else {
2232                path = quote_path(it->string, s->prefix, &buf);
2233                eol_char = '\n';
2234        }
2235
2236        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2237
2238        strbuf_release(&buf);
2239}
2240
2241/*
2242 * Print porcelain V2 status.
2243 *
2244 * [<v2_branch>]
2245 * [<v2_changed_items>]*
2246 * [<v2_unmerged_items>]*
2247 * [<v2_untracked_items>]*
2248 * [<v2_ignored_items>]*
2249 *
2250 */
2251static void wt_porcelain_v2_print(struct wt_status *s)
2252{
2253        struct wt_status_change_data *d;
2254        struct string_list_item *it;
2255        int i;
2256
2257        if (s->show_branch)
2258                wt_porcelain_v2_print_tracking(s);
2259
2260        for (i = 0; i < s->change.nr; i++) {
2261                it = &(s->change.items[i]);
2262                d = it->util;
2263                if (!d->stagemask)
2264                        wt_porcelain_v2_print_changed_entry(it, s);
2265        }
2266
2267        for (i = 0; i < s->change.nr; i++) {
2268                it = &(s->change.items[i]);
2269                d = it->util;
2270                if (d->stagemask)
2271                        wt_porcelain_v2_print_unmerged_entry(it, s);
2272        }
2273
2274        for (i = 0; i < s->untracked.nr; i++) {
2275                it = &(s->untracked.items[i]);
2276                wt_porcelain_v2_print_other(it, s, '?');
2277        }
2278
2279        for (i = 0; i < s->ignored.nr; i++) {
2280                it = &(s->ignored.items[i]);
2281                wt_porcelain_v2_print_other(it, s, '!');
2282        }
2283}
2284
2285void wt_status_print(struct wt_status *s)
2286{
2287        switch (s->status_format) {
2288        case STATUS_FORMAT_SHORT:
2289                wt_shortstatus_print(s);
2290                break;
2291        case STATUS_FORMAT_PORCELAIN:
2292                wt_porcelain_print(s);
2293                break;
2294        case STATUS_FORMAT_PORCELAIN_V2:
2295                wt_porcelain_v2_print(s);
2296                break;
2297        case STATUS_FORMAT_UNSPECIFIED:
2298                BUG("finalize_deferred_config() should have been called");
2299                break;
2300        case STATUS_FORMAT_NONE:
2301        case STATUS_FORMAT_LONG:
2302                wt_longstatus_print(s);
2303                break;
2304        }
2305}
2306
2307/**
2308 * Returns 1 if there are unstaged changes, 0 otherwise.
2309 */
2310int has_unstaged_changes(int ignore_submodules)
2311{
2312        struct rev_info rev_info;
2313        int result;
2314
2315        repo_init_revisions(the_repository, &rev_info, NULL);
2316        if (ignore_submodules) {
2317                rev_info.diffopt.flags.ignore_submodules = 1;
2318                rev_info.diffopt.flags.override_submodule_config = 1;
2319        }
2320        rev_info.diffopt.flags.quick = 1;
2321        diff_setup_done(&rev_info.diffopt);
2322        result = run_diff_files(&rev_info, 0);
2323        return diff_result_code(&rev_info.diffopt, result);
2324}
2325
2326/**
2327 * Returns 1 if there are uncommitted changes, 0 otherwise.
2328 */
2329int has_uncommitted_changes(int ignore_submodules)
2330{
2331        struct rev_info rev_info;
2332        int result;
2333
2334        if (is_cache_unborn())
2335                return 0;
2336
2337        repo_init_revisions(the_repository, &rev_info, NULL);
2338        if (ignore_submodules)
2339                rev_info.diffopt.flags.ignore_submodules = 1;
2340        rev_info.diffopt.flags.quick = 1;
2341
2342        add_head_to_pending(&rev_info);
2343        if (!rev_info.pending.nr) {
2344                /*
2345                 * We have no head (or it's corrupt); use the empty tree,
2346                 * which will complain if the index is non-empty.
2347                 */
2348                struct tree *tree = lookup_tree(the_repository, the_hash_algo->empty_tree);
2349                add_pending_object(&rev_info, &tree->object, "");
2350        }
2351
2352        diff_setup_done(&rev_info.diffopt);
2353        result = run_diff_index(&rev_info, 1);
2354        return diff_result_code(&rev_info.diffopt, result);
2355}
2356
2357/**
2358 * If the work tree has unstaged or uncommitted changes, dies with the
2359 * appropriate message.
2360 */
2361int require_clean_work_tree(const char *action, const char *hint, int ignore_submodules, int gently)
2362{
2363        struct lock_file lock_file = LOCK_INIT;
2364        int err = 0, fd;
2365
2366        fd = hold_locked_index(&lock_file, 0);
2367        refresh_cache(REFRESH_QUIET);
2368        if (0 <= fd)
2369                update_index_if_able(&the_index, &lock_file);
2370        rollback_lock_file(&lock_file);
2371
2372        if (has_unstaged_changes(ignore_submodules)) {
2373                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2374                error(_("cannot %s: You have unstaged changes."), _(action));
2375                err = 1;
2376        }
2377
2378        if (has_uncommitted_changes(ignore_submodules)) {
2379                if (err)
2380                        error(_("additionally, your index contains uncommitted changes."));
2381                else
2382                        error(_("cannot %s: Your index contains uncommitted changes."),
2383                              _(action));
2384                err = 1;
2385        }
2386
2387        if (err) {
2388                if (hint)
2389                        error("%s", hint);
2390                if (!gently)
2391                        exit(128);
2392        }
2393
2394        return err;
2395}