wt-status.con commit Merge branch 'ks/branch-set-upstream' (4229478)
   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 = !!oidcmp(&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                        break;
 544                case DIFF_STATUS_DELETED:
 545                        d->mode_head = p->one->mode;
 546                        oidcpy(&d->oid_head, &p->one->oid);
 547                        /* Leave {mode,oid}_index zero for a delete. */
 548                        break;
 549
 550                case DIFF_STATUS_COPIED:
 551                case DIFF_STATUS_RENAMED:
 552                        if (d->rename_status)
 553                                BUG("multiple renames on the same target? how?");
 554                        d->rename_source = xstrdup(p->one->path);
 555                        d->rename_score = p->score * 100 / MAX_SCORE;
 556                        d->rename_status = p->status;
 557                        /* fallthru */
 558                case DIFF_STATUS_MODIFIED:
 559                case DIFF_STATUS_TYPE_CHANGED:
 560                        d->mode_head = p->one->mode;
 561                        d->mode_index = p->two->mode;
 562                        oidcpy(&d->oid_head, &p->one->oid);
 563                        oidcpy(&d->oid_index, &p->two->oid);
 564                        break;
 565                case DIFF_STATUS_UNMERGED:
 566                        d->stagemask = unmerged_mask(p->two->path);
 567                        /*
 568                         * Don't bother setting {mode,oid}_{head,index} since the print
 569                         * code will output the stage values directly and not use the
 570                         * values in these fields.
 571                         */
 572                        break;
 573
 574                default:
 575                        BUG("unhandled diff-index status '%c'", p->status);
 576                        break;
 577                }
 578        }
 579}
 580
 581static void wt_status_collect_changes_worktree(struct wt_status *s)
 582{
 583        struct rev_info rev;
 584
 585        init_revisions(&rev, NULL);
 586        setup_revisions(0, NULL, &rev, NULL);
 587        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 588        rev.diffopt.flags.dirty_submodules = 1;
 589        rev.diffopt.ita_invisible_in_index = 1;
 590        if (!s->show_untracked_files)
 591                rev.diffopt.flags.ignore_untracked_in_submodules = 1;
 592        if (s->ignore_submodule_arg) {
 593                rev.diffopt.flags.override_submodule_config = 1;
 594                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 595        }
 596        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 597        rev.diffopt.format_callback_data = s;
 598        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 599        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 600        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 601        copy_pathspec(&rev.prune_data, &s->pathspec);
 602        run_diff_files(&rev, 0);
 603}
 604
 605static void wt_status_collect_changes_index(struct wt_status *s)
 606{
 607        struct rev_info rev;
 608        struct setup_revision_opt opt;
 609
 610        init_revisions(&rev, NULL);
 611        memset(&opt, 0, sizeof(opt));
 612        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
 613        setup_revisions(0, NULL, &rev, &opt);
 614
 615        rev.diffopt.flags.override_submodule_config = 1;
 616        rev.diffopt.ita_invisible_in_index = 1;
 617        if (s->ignore_submodule_arg) {
 618                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 619        } else {
 620                /*
 621                 * Unless the user did explicitly request a submodule ignore
 622                 * mode by passing a command line option we do not ignore any
 623                 * changed submodule SHA-1s when comparing index and HEAD, no
 624                 * matter what is configured. Otherwise the user won't be
 625                 * shown any submodules she manually added (and which are
 626                 * staged to be committed), which would be really confusing.
 627                 */
 628                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 629        }
 630
 631        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 632        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 633        rev.diffopt.format_callback_data = s;
 634        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 635        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 636        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 637        copy_pathspec(&rev.prune_data, &s->pathspec);
 638        run_diff_index(&rev, 1);
 639}
 640
 641static void wt_status_collect_changes_initial(struct wt_status *s)
 642{
 643        int i;
 644
 645        for (i = 0; i < active_nr; i++) {
 646                struct string_list_item *it;
 647                struct wt_status_change_data *d;
 648                const struct cache_entry *ce = active_cache[i];
 649
 650                if (!ce_path_match(ce, &s->pathspec, NULL))
 651                        continue;
 652                if (ce_intent_to_add(ce))
 653                        continue;
 654                it = string_list_insert(&s->change, ce->name);
 655                d = it->util;
 656                if (!d) {
 657                        d = xcalloc(1, sizeof(*d));
 658                        it->util = d;
 659                }
 660                if (ce_stage(ce)) {
 661                        d->index_status = DIFF_STATUS_UNMERGED;
 662                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 663                        /*
 664                         * Don't bother setting {mode,oid}_{head,index} since the print
 665                         * code will output the stage values directly and not use the
 666                         * values in these fields.
 667                         */
 668                } else {
 669                        d->index_status = DIFF_STATUS_ADDED;
 670                        /* Leave {mode,oid}_head zero for adds. */
 671                        d->mode_index = ce->ce_mode;
 672                        oidcpy(&d->oid_index, &ce->oid);
 673                }
 674        }
 675}
 676
 677static void wt_status_collect_untracked(struct wt_status *s)
 678{
 679        int i;
 680        struct dir_struct dir;
 681        uint64_t t_begin = getnanotime();
 682
 683        if (!s->show_untracked_files)
 684                return;
 685
 686        memset(&dir, 0, sizeof(dir));
 687        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 688                dir.flags |=
 689                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 690        if (s->show_ignored_mode) {
 691                dir.flags |= DIR_SHOW_IGNORED_TOO;
 692
 693                if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
 694                        dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
 695        } else {
 696                dir.untracked = the_index.untracked;
 697        }
 698
 699        setup_standard_excludes(&dir);
 700
 701        fill_directory(&dir, &the_index, &s->pathspec);
 702
 703        for (i = 0; i < dir.nr; i++) {
 704                struct dir_entry *ent = dir.entries[i];
 705                if (cache_name_is_other(ent->name, ent->len) &&
 706                    dir_path_match(ent, &s->pathspec, 0, NULL))
 707                        string_list_insert(&s->untracked, ent->name);
 708                free(ent);
 709        }
 710
 711        for (i = 0; i < dir.ignored_nr; i++) {
 712                struct dir_entry *ent = dir.ignored[i];
 713                if (cache_name_is_other(ent->name, ent->len) &&
 714                    dir_path_match(ent, &s->pathspec, 0, NULL))
 715                        string_list_insert(&s->ignored, ent->name);
 716                free(ent);
 717        }
 718
 719        free(dir.entries);
 720        free(dir.ignored);
 721        clear_directory(&dir);
 722
 723        if (advice_status_u_option)
 724                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 725}
 726
 727void wt_status_collect(struct wt_status *s)
 728{
 729        wt_status_collect_changes_worktree(s);
 730
 731        if (s->is_initial)
 732                wt_status_collect_changes_initial(s);
 733        else
 734                wt_status_collect_changes_index(s);
 735        wt_status_collect_untracked(s);
 736}
 737
 738static void wt_longstatus_print_unmerged(struct wt_status *s)
 739{
 740        int shown_header = 0;
 741        int i;
 742
 743        for (i = 0; i < s->change.nr; i++) {
 744                struct wt_status_change_data *d;
 745                struct string_list_item *it;
 746                it = &(s->change.items[i]);
 747                d = it->util;
 748                if (!d->stagemask)
 749                        continue;
 750                if (!shown_header) {
 751                        wt_longstatus_print_unmerged_header(s);
 752                        shown_header = 1;
 753                }
 754                wt_longstatus_print_unmerged_data(s, it);
 755        }
 756        if (shown_header)
 757                wt_longstatus_print_trailer(s);
 758
 759}
 760
 761static void wt_longstatus_print_updated(struct wt_status *s)
 762{
 763        int shown_header = 0;
 764        int i;
 765
 766        for (i = 0; i < s->change.nr; i++) {
 767                struct wt_status_change_data *d;
 768                struct string_list_item *it;
 769                it = &(s->change.items[i]);
 770                d = it->util;
 771                if (!d->index_status ||
 772                    d->index_status == DIFF_STATUS_UNMERGED)
 773                        continue;
 774                if (!shown_header) {
 775                        wt_longstatus_print_cached_header(s);
 776                        s->commitable = 1;
 777                        shown_header = 1;
 778                }
 779                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 780        }
 781        if (shown_header)
 782                wt_longstatus_print_trailer(s);
 783}
 784
 785/*
 786 * -1 : has delete
 787 *  0 : no change
 788 *  1 : some change but no delete
 789 */
 790static int wt_status_check_worktree_changes(struct wt_status *s,
 791                                             int *dirty_submodules)
 792{
 793        int i;
 794        int changes = 0;
 795
 796        *dirty_submodules = 0;
 797
 798        for (i = 0; i < s->change.nr; i++) {
 799                struct wt_status_change_data *d;
 800                d = s->change.items[i].util;
 801                if (!d->worktree_status ||
 802                    d->worktree_status == DIFF_STATUS_UNMERGED)
 803                        continue;
 804                if (!changes)
 805                        changes = 1;
 806                if (d->dirty_submodule)
 807                        *dirty_submodules = 1;
 808                if (d->worktree_status == DIFF_STATUS_DELETED)
 809                        changes = -1;
 810        }
 811        return changes;
 812}
 813
 814static void wt_longstatus_print_changed(struct wt_status *s)
 815{
 816        int i, dirty_submodules;
 817        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 818
 819        if (!worktree_changes)
 820                return;
 821
 822        wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 823
 824        for (i = 0; i < s->change.nr; i++) {
 825                struct wt_status_change_data *d;
 826                struct string_list_item *it;
 827                it = &(s->change.items[i]);
 828                d = it->util;
 829                if (!d->worktree_status ||
 830                    d->worktree_status == DIFF_STATUS_UNMERGED)
 831                        continue;
 832                wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 833        }
 834        wt_longstatus_print_trailer(s);
 835}
 836
 837static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
 838                            const char *email, timestamp_t timestamp, int tz,
 839                            const char *message, void *cb_data)
 840{
 841        int *c = cb_data;
 842        (*c)++;
 843        return 0;
 844}
 845
 846static void wt_longstatus_print_stash_summary(struct wt_status *s)
 847{
 848        int stash_count = 0;
 849
 850        for_each_reflog_ent("refs/stash", stash_count_refs, &stash_count);
 851        if (stash_count > 0)
 852                status_printf_ln(s, GIT_COLOR_NORMAL,
 853                                 Q_("Your stash currently has %d entry",
 854                                    "Your stash currently has %d entries", stash_count),
 855                                 stash_count);
 856}
 857
 858static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 859{
 860        struct child_process sm_summary = CHILD_PROCESS_INIT;
 861        struct strbuf cmd_stdout = STRBUF_INIT;
 862        struct strbuf summary = STRBUF_INIT;
 863        char *summary_content;
 864
 865        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 866                         s->index_file);
 867
 868        argv_array_push(&sm_summary.args, "submodule");
 869        argv_array_push(&sm_summary.args, "summary");
 870        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 871        argv_array_push(&sm_summary.args, "--for-status");
 872        argv_array_push(&sm_summary.args, "--summary-limit");
 873        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 874        if (!uncommitted)
 875                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 876
 877        sm_summary.git_cmd = 1;
 878        sm_summary.no_stdin = 1;
 879
 880        capture_command(&sm_summary, &cmd_stdout, 1024);
 881
 882        /* prepend header, only if there's an actual output */
 883        if (cmd_stdout.len) {
 884                if (uncommitted)
 885                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 886                else
 887                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 888                strbuf_addstr(&summary, "\n\n");
 889        }
 890        strbuf_addbuf(&summary, &cmd_stdout);
 891        strbuf_release(&cmd_stdout);
 892
 893        if (s->display_comment_prefix) {
 894                size_t len;
 895                summary_content = strbuf_detach(&summary, &len);
 896                strbuf_add_commented_lines(&summary, summary_content, len);
 897                free(summary_content);
 898        }
 899
 900        fputs(summary.buf, s->fp);
 901        strbuf_release(&summary);
 902}
 903
 904static void wt_longstatus_print_other(struct wt_status *s,
 905                                      struct string_list *l,
 906                                      const char *what,
 907                                      const char *how)
 908{
 909        int i;
 910        struct strbuf buf = STRBUF_INIT;
 911        static struct string_list output = STRING_LIST_INIT_DUP;
 912        struct column_options copts;
 913
 914        if (!l->nr)
 915                return;
 916
 917        wt_longstatus_print_other_header(s, what, how);
 918
 919        for (i = 0; i < l->nr; i++) {
 920                struct string_list_item *it;
 921                const char *path;
 922                it = &(l->items[i]);
 923                path = quote_path(it->string, s->prefix, &buf);
 924                if (column_active(s->colopts)) {
 925                        string_list_append(&output, path);
 926                        continue;
 927                }
 928                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 929                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 930                                   "%s\n", path);
 931        }
 932
 933        strbuf_release(&buf);
 934        if (!column_active(s->colopts))
 935                goto conclude;
 936
 937        strbuf_addf(&buf, "%s%s\t%s",
 938                    color(WT_STATUS_HEADER, s),
 939                    s->display_comment_prefix ? "#" : "",
 940                    color(WT_STATUS_UNTRACKED, s));
 941        memset(&copts, 0, sizeof(copts));
 942        copts.padding = 1;
 943        copts.indent = buf.buf;
 944        if (want_color(s->use_color))
 945                copts.nl = GIT_COLOR_RESET "\n";
 946        print_columns(&output, s->colopts, &copts);
 947        string_list_clear(&output, 0);
 948        strbuf_release(&buf);
 949conclude:
 950        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 951}
 952
 953size_t wt_status_locate_end(const char *s, size_t len)
 954{
 955        const char *p;
 956        struct strbuf pattern = STRBUF_INIT;
 957
 958        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
 959        if (starts_with(s, pattern.buf + 1))
 960                len = 0;
 961        else if ((p = strstr(s, pattern.buf)))
 962                len = p - s + 1;
 963        strbuf_release(&pattern);
 964        return len;
 965}
 966
 967void wt_status_add_cut_line(FILE *fp)
 968{
 969        const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
 970        struct strbuf buf = STRBUF_INIT;
 971
 972        fprintf(fp, "%c %s", comment_line_char, cut_line);
 973        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 974        fputs(buf.buf, fp);
 975        strbuf_release(&buf);
 976}
 977
 978static void wt_longstatus_print_verbose(struct wt_status *s)
 979{
 980        struct rev_info rev;
 981        struct setup_revision_opt opt;
 982        int dirty_submodules;
 983        const char *c = color(WT_STATUS_HEADER, s);
 984
 985        init_revisions(&rev, NULL);
 986        rev.diffopt.flags.allow_textconv = 1;
 987        rev.diffopt.ita_invisible_in_index = 1;
 988
 989        memset(&opt, 0, sizeof(opt));
 990        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
 991        setup_revisions(0, NULL, &rev, &opt);
 992
 993        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 994        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 995        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 996        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 997        rev.diffopt.file = s->fp;
 998        rev.diffopt.close_file = 0;
 999        /*
1000         * If we're not going to stdout, then we definitely don't
1001         * want color, since we are going to the commit message
1002         * file (and even the "auto" setting won't work, since it
1003         * will have checked isatty on stdout). But we then do want
1004         * to insert the scissor line here to reliably remove the
1005         * diff before committing.
1006         */
1007        if (s->fp != stdout) {
1008                rev.diffopt.use_color = 0;
1009                wt_status_add_cut_line(s->fp);
1010        }
1011        if (s->verbose > 1 && s->commitable) {
1012                /* print_updated() printed a header, so do we */
1013                if (s->fp != stdout)
1014                        wt_longstatus_print_trailer(s);
1015                status_printf_ln(s, c, _("Changes to be committed:"));
1016                rev.diffopt.a_prefix = "c/";
1017                rev.diffopt.b_prefix = "i/";
1018        } /* else use prefix as per user config */
1019        run_diff_index(&rev, 1);
1020        if (s->verbose > 1 &&
1021            wt_status_check_worktree_changes(s, &dirty_submodules)) {
1022                status_printf_ln(s, c,
1023                        "--------------------------------------------------");
1024                status_printf_ln(s, c, _("Changes not staged for commit:"));
1025                setup_work_tree();
1026                rev.diffopt.a_prefix = "i/";
1027                rev.diffopt.b_prefix = "w/";
1028                run_diff_files(&rev, 0);
1029        }
1030}
1031
1032static void wt_longstatus_print_tracking(struct wt_status *s)
1033{
1034        struct strbuf sb = STRBUF_INIT;
1035        const char *cp, *ep, *branch_name;
1036        struct branch *branch;
1037        char comment_line_string[3];
1038        int i;
1039
1040        assert(s->branch && !s->is_initial);
1041        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
1042                return;
1043        branch = branch_get(branch_name);
1044        if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
1045                return;
1046
1047        i = 0;
1048        if (s->display_comment_prefix) {
1049                comment_line_string[i++] = comment_line_char;
1050                comment_line_string[i++] = ' ';
1051        }
1052        comment_line_string[i] = '\0';
1053
1054        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
1055                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1056                                 "%s%.*s", comment_line_string,
1057                                 (int)(ep - cp), cp);
1058        if (s->display_comment_prefix)
1059                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
1060                                 comment_line_char);
1061        else
1062                fputs("\n", s->fp);
1063        strbuf_release(&sb);
1064}
1065
1066static int has_unmerged(struct wt_status *s)
1067{
1068        int i;
1069
1070        for (i = 0; i < s->change.nr; i++) {
1071                struct wt_status_change_data *d;
1072                d = s->change.items[i].util;
1073                if (d->stagemask)
1074                        return 1;
1075        }
1076        return 0;
1077}
1078
1079static void show_merge_in_progress(struct wt_status *s,
1080                                struct wt_status_state *state,
1081                                const char *color)
1082{
1083        if (has_unmerged(s)) {
1084                status_printf_ln(s, color, _("You have unmerged paths."));
1085                if (s->hints) {
1086                        status_printf_ln(s, color,
1087                                         _("  (fix conflicts and run \"git commit\")"));
1088                        status_printf_ln(s, color,
1089                                         _("  (use \"git merge --abort\" to abort the merge)"));
1090                }
1091        } else {
1092                s-> commitable = 1;
1093                status_printf_ln(s, color,
1094                        _("All conflicts fixed but you are still merging."));
1095                if (s->hints)
1096                        status_printf_ln(s, color,
1097                                _("  (use \"git commit\" to conclude merge)"));
1098        }
1099        wt_longstatus_print_trailer(s);
1100}
1101
1102static void show_am_in_progress(struct wt_status *s,
1103                                struct wt_status_state *state,
1104                                const char *color)
1105{
1106        status_printf_ln(s, color,
1107                _("You are in the middle of an am session."));
1108        if (state->am_empty_patch)
1109                status_printf_ln(s, color,
1110                        _("The current patch is empty."));
1111        if (s->hints) {
1112                if (!state->am_empty_patch)
1113                        status_printf_ln(s, color,
1114                                _("  (fix conflicts and then run \"git am --continue\")"));
1115                status_printf_ln(s, color,
1116                        _("  (use \"git am --skip\" to skip this patch)"));
1117                status_printf_ln(s, color,
1118                        _("  (use \"git am --abort\" to restore the original branch)"));
1119        }
1120        wt_longstatus_print_trailer(s);
1121}
1122
1123static char *read_line_from_git_path(const char *filename)
1124{
1125        struct strbuf buf = STRBUF_INIT;
1126        FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
1127
1128        if (!fp) {
1129                strbuf_release(&buf);
1130                return NULL;
1131        }
1132        strbuf_getline_lf(&buf, fp);
1133        if (!fclose(fp)) {
1134                return strbuf_detach(&buf, NULL);
1135        } else {
1136                strbuf_release(&buf);
1137                return NULL;
1138        }
1139}
1140
1141static int split_commit_in_progress(struct wt_status *s)
1142{
1143        int split_in_progress = 0;
1144        char *head, *orig_head, *rebase_amend, *rebase_orig_head;
1145
1146        if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1147            !s->branch || strcmp(s->branch, "HEAD"))
1148                return 0;
1149
1150        head = read_line_from_git_path("HEAD");
1151        orig_head = read_line_from_git_path("ORIG_HEAD");
1152        rebase_amend = read_line_from_git_path("rebase-merge/amend");
1153        rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1154
1155        if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
1156                ; /* fall through, no split in progress */
1157        else if (!strcmp(rebase_amend, rebase_orig_head))
1158                split_in_progress = !!strcmp(head, rebase_amend);
1159        else if (strcmp(orig_head, rebase_orig_head))
1160                split_in_progress = 1;
1161
1162        free(head);
1163        free(orig_head);
1164        free(rebase_amend);
1165        free(rebase_orig_head);
1166
1167        return split_in_progress;
1168}
1169
1170/*
1171 * Turn
1172 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1173 * into
1174 * "pick d6a2f03 some message"
1175 *
1176 * The function assumes that the line does not contain useless spaces
1177 * before or after the command.
1178 */
1179static void abbrev_sha1_in_line(struct strbuf *line)
1180{
1181        struct strbuf **split;
1182        int i;
1183
1184        if (starts_with(line->buf, "exec ") ||
1185            starts_with(line->buf, "x "))
1186                return;
1187
1188        split = strbuf_split_max(line, ' ', 3);
1189        if (split[0] && split[1]) {
1190                struct object_id oid;
1191
1192                /*
1193                 * strbuf_split_max left a space. Trim it and re-add
1194                 * it after abbreviation.
1195                 */
1196                strbuf_trim(split[1]);
1197                if (!get_oid(split[1]->buf, &oid)) {
1198                        strbuf_reset(split[1]);
1199                        strbuf_add_unique_abbrev(split[1], &oid,
1200                                                 DEFAULT_ABBREV);
1201                        strbuf_addch(split[1], ' ');
1202                        strbuf_reset(line);
1203                        for (i = 0; split[i]; i++)
1204                                strbuf_addbuf(line, split[i]);
1205                }
1206        }
1207        strbuf_list_free(split);
1208}
1209
1210static int read_rebase_todolist(const char *fname, struct string_list *lines)
1211{
1212        struct strbuf line = STRBUF_INIT;
1213        FILE *f = fopen(git_path("%s", fname), "r");
1214
1215        if (!f) {
1216                if (errno == ENOENT)
1217                        return -1;
1218                die_errno("Could not open file %s for reading",
1219                          git_path("%s", fname));
1220        }
1221        while (!strbuf_getline_lf(&line, f)) {
1222                if (line.len && line.buf[0] == comment_line_char)
1223                        continue;
1224                strbuf_trim(&line);
1225                if (!line.len)
1226                        continue;
1227                abbrev_sha1_in_line(&line);
1228                string_list_append(lines, line.buf);
1229        }
1230        fclose(f);
1231        strbuf_release(&line);
1232        return 0;
1233}
1234
1235static void show_rebase_information(struct wt_status *s,
1236                                        struct wt_status_state *state,
1237                                        const char *color)
1238{
1239        if (state->rebase_interactive_in_progress) {
1240                int i;
1241                int nr_lines_to_show = 2;
1242
1243                struct string_list have_done = STRING_LIST_INIT_DUP;
1244                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1245
1246                read_rebase_todolist("rebase-merge/done", &have_done);
1247                if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1248                                         &yet_to_do))
1249                        status_printf_ln(s, color,
1250                                _("git-rebase-todo is missing."));
1251                if (have_done.nr == 0)
1252                        status_printf_ln(s, color, _("No commands done."));
1253                else {
1254                        status_printf_ln(s, color,
1255                                Q_("Last command done (%d command done):",
1256                                        "Last commands done (%d commands done):",
1257                                        have_done.nr),
1258                                have_done.nr);
1259                        for (i = (have_done.nr > nr_lines_to_show)
1260                                ? have_done.nr - nr_lines_to_show : 0;
1261                                i < have_done.nr;
1262                                i++)
1263                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1264                        if (have_done.nr > nr_lines_to_show && s->hints)
1265                                status_printf_ln(s, color,
1266                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1267                }
1268
1269                if (yet_to_do.nr == 0)
1270                        status_printf_ln(s, color,
1271                                         _("No commands remaining."));
1272                else {
1273                        status_printf_ln(s, color,
1274                                Q_("Next command to do (%d remaining command):",
1275                                        "Next commands to do (%d remaining commands):",
1276                                        yet_to_do.nr),
1277                                yet_to_do.nr);
1278                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1279                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1280                        if (s->hints)
1281                                status_printf_ln(s, color,
1282                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1283                }
1284                string_list_clear(&yet_to_do, 0);
1285                string_list_clear(&have_done, 0);
1286        }
1287}
1288
1289static void print_rebase_state(struct wt_status *s,
1290                                struct wt_status_state *state,
1291                                const char *color)
1292{
1293        if (state->branch)
1294                status_printf_ln(s, color,
1295                                 _("You are currently rebasing branch '%s' on '%s'."),
1296                                 state->branch,
1297                                 state->onto);
1298        else
1299                status_printf_ln(s, color,
1300                                 _("You are currently rebasing."));
1301}
1302
1303static void show_rebase_in_progress(struct wt_status *s,
1304                                struct wt_status_state *state,
1305                                const char *color)
1306{
1307        struct stat st;
1308
1309        show_rebase_information(s, state, color);
1310        if (has_unmerged(s)) {
1311                print_rebase_state(s, state, color);
1312                if (s->hints) {
1313                        status_printf_ln(s, color,
1314                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1315                        status_printf_ln(s, color,
1316                                _("  (use \"git rebase --skip\" to skip this patch)"));
1317                        status_printf_ln(s, color,
1318                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1319                }
1320        } else if (state->rebase_in_progress || !stat(git_path_merge_msg(), &st)) {
1321                print_rebase_state(s, state, color);
1322                if (s->hints)
1323                        status_printf_ln(s, color,
1324                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1325        } else if (split_commit_in_progress(s)) {
1326                if (state->branch)
1327                        status_printf_ln(s, color,
1328                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1329                                         state->branch,
1330                                         state->onto);
1331                else
1332                        status_printf_ln(s, color,
1333                                         _("You are currently splitting a commit during a rebase."));
1334                if (s->hints)
1335                        status_printf_ln(s, color,
1336                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1337        } else {
1338                if (state->branch)
1339                        status_printf_ln(s, color,
1340                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1341                                         state->branch,
1342                                         state->onto);
1343                else
1344                        status_printf_ln(s, color,
1345                                         _("You are currently editing a commit during a rebase."));
1346                if (s->hints && !s->amend) {
1347                        status_printf_ln(s, color,
1348                                _("  (use \"git commit --amend\" to amend the current commit)"));
1349                        status_printf_ln(s, color,
1350                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1351                }
1352        }
1353        wt_longstatus_print_trailer(s);
1354}
1355
1356static void show_cherry_pick_in_progress(struct wt_status *s,
1357                                        struct wt_status_state *state,
1358                                        const char *color)
1359{
1360        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1361                        find_unique_abbrev(&state->cherry_pick_head_oid, DEFAULT_ABBREV));
1362        if (s->hints) {
1363                if (has_unmerged(s))
1364                        status_printf_ln(s, color,
1365                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1366                else
1367                        status_printf_ln(s, color,
1368                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1369                status_printf_ln(s, color,
1370                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1371        }
1372        wt_longstatus_print_trailer(s);
1373}
1374
1375static void show_revert_in_progress(struct wt_status *s,
1376                                        struct wt_status_state *state,
1377                                        const char *color)
1378{
1379        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1380                         find_unique_abbrev(&state->revert_head_oid, DEFAULT_ABBREV));
1381        if (s->hints) {
1382                if (has_unmerged(s))
1383                        status_printf_ln(s, color,
1384                                _("  (fix conflicts and run \"git revert --continue\")"));
1385                else
1386                        status_printf_ln(s, color,
1387                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1388                status_printf_ln(s, color,
1389                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1390        }
1391        wt_longstatus_print_trailer(s);
1392}
1393
1394static void show_bisect_in_progress(struct wt_status *s,
1395                                struct wt_status_state *state,
1396                                const char *color)
1397{
1398        if (state->branch)
1399                status_printf_ln(s, color,
1400                                 _("You are currently bisecting, started from branch '%s'."),
1401                                 state->branch);
1402        else
1403                status_printf_ln(s, color,
1404                                 _("You are currently bisecting."));
1405        if (s->hints)
1406                status_printf_ln(s, color,
1407                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1408        wt_longstatus_print_trailer(s);
1409}
1410
1411/*
1412 * Extract branch information from rebase/bisect
1413 */
1414static char *get_branch(const struct worktree *wt, const char *path)
1415{
1416        struct strbuf sb = STRBUF_INIT;
1417        struct object_id oid;
1418        const char *branch_name;
1419
1420        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1421                goto got_nothing;
1422
1423        while (sb.len && sb.buf[sb.len - 1] == '\n')
1424                strbuf_setlen(&sb, sb.len - 1);
1425        if (!sb.len)
1426                goto got_nothing;
1427        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1428                strbuf_remove(&sb, 0, branch_name - sb.buf);
1429        else if (starts_with(sb.buf, "refs/"))
1430                ;
1431        else if (!get_oid_hex(sb.buf, &oid)) {
1432                strbuf_reset(&sb);
1433                strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1434        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1435                goto got_nothing;
1436        else                    /* bisect */
1437                ;
1438        return strbuf_detach(&sb, NULL);
1439
1440got_nothing:
1441        strbuf_release(&sb);
1442        return NULL;
1443}
1444
1445struct grab_1st_switch_cbdata {
1446        struct strbuf buf;
1447        struct object_id noid;
1448};
1449
1450static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1451                           const char *email, timestamp_t timestamp, int tz,
1452                           const char *message, void *cb_data)
1453{
1454        struct grab_1st_switch_cbdata *cb = cb_data;
1455        const char *target = NULL, *end;
1456
1457        if (!skip_prefix(message, "checkout: moving from ", &message))
1458                return 0;
1459        target = strstr(message, " to ");
1460        if (!target)
1461                return 0;
1462        target += strlen(" to ");
1463        strbuf_reset(&cb->buf);
1464        oidcpy(&cb->noid, noid);
1465        end = strchrnul(target, '\n');
1466        strbuf_add(&cb->buf, target, end - target);
1467        if (!strcmp(cb->buf.buf, "HEAD")) {
1468                /* HEAD is relative. Resolve it to the right reflog entry. */
1469                strbuf_reset(&cb->buf);
1470                strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1471        }
1472        return 1;
1473}
1474
1475static void wt_status_get_detached_from(struct wt_status_state *state)
1476{
1477        struct grab_1st_switch_cbdata cb;
1478        struct commit *commit;
1479        struct object_id oid;
1480        char *ref = NULL;
1481
1482        strbuf_init(&cb.buf, 0);
1483        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1484                strbuf_release(&cb.buf);
1485                return;
1486        }
1487
1488        if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
1489            /* sha1 is a commit? match without further lookup */
1490            (!oidcmp(&cb.noid, &oid) ||
1491             /* perhaps sha1 is a tag, try to dereference to a commit */
1492             ((commit = lookup_commit_reference_gently(&oid, 1)) != NULL &&
1493              !oidcmp(&cb.noid, &commit->object.oid)))) {
1494                const char *from = ref;
1495                if (!skip_prefix(from, "refs/tags/", &from))
1496                        skip_prefix(from, "refs/remotes/", &from);
1497                state->detached_from = xstrdup(from);
1498        } else
1499                state->detached_from =
1500                        xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
1501        oidcpy(&state->detached_oid, &cb.noid);
1502        state->detached_at = !get_oid("HEAD", &oid) &&
1503                             !oidcmp(&oid, &state->detached_oid);
1504
1505        free(ref);
1506        strbuf_release(&cb.buf);
1507}
1508
1509int wt_status_check_rebase(const struct worktree *wt,
1510                           struct wt_status_state *state)
1511{
1512        struct stat st;
1513
1514        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1515                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1516                        state->am_in_progress = 1;
1517                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1518                                state->am_empty_patch = 1;
1519                } else {
1520                        state->rebase_in_progress = 1;
1521                        state->branch = get_branch(wt, "rebase-apply/head-name");
1522                        state->onto = get_branch(wt, "rebase-apply/onto");
1523                }
1524        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1525                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1526                        state->rebase_interactive_in_progress = 1;
1527                else
1528                        state->rebase_in_progress = 1;
1529                state->branch = get_branch(wt, "rebase-merge/head-name");
1530                state->onto = get_branch(wt, "rebase-merge/onto");
1531        } else
1532                return 0;
1533        return 1;
1534}
1535
1536int wt_status_check_bisect(const struct worktree *wt,
1537                           struct wt_status_state *state)
1538{
1539        struct stat st;
1540
1541        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1542                state->bisect_in_progress = 1;
1543                state->branch = get_branch(wt, "BISECT_START");
1544                return 1;
1545        }
1546        return 0;
1547}
1548
1549void wt_status_get_state(struct wt_status_state *state,
1550                         int get_detached_from)
1551{
1552        struct stat st;
1553        struct object_id oid;
1554
1555        if (!stat(git_path_merge_head(), &st)) {
1556                state->merge_in_progress = 1;
1557        } else if (wt_status_check_rebase(NULL, state)) {
1558                ;               /* all set */
1559        } else if (!stat(git_path_cherry_pick_head(), &st) &&
1560                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
1561                state->cherry_pick_in_progress = 1;
1562                oidcpy(&state->cherry_pick_head_oid, &oid);
1563        }
1564        wt_status_check_bisect(NULL, state);
1565        if (!stat(git_path_revert_head(), &st) &&
1566            !get_oid("REVERT_HEAD", &oid)) {
1567                state->revert_in_progress = 1;
1568                oidcpy(&state->revert_head_oid, &oid);
1569        }
1570
1571        if (get_detached_from)
1572                wt_status_get_detached_from(state);
1573}
1574
1575static void wt_longstatus_print_state(struct wt_status *s,
1576                                      struct wt_status_state *state)
1577{
1578        const char *state_color = color(WT_STATUS_HEADER, s);
1579        if (state->merge_in_progress)
1580                show_merge_in_progress(s, state, state_color);
1581        else if (state->am_in_progress)
1582                show_am_in_progress(s, state, state_color);
1583        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1584                show_rebase_in_progress(s, state, state_color);
1585        else if (state->cherry_pick_in_progress)
1586                show_cherry_pick_in_progress(s, state, state_color);
1587        else if (state->revert_in_progress)
1588                show_revert_in_progress(s, state, state_color);
1589        if (state->bisect_in_progress)
1590                show_bisect_in_progress(s, state, state_color);
1591}
1592
1593static void wt_longstatus_print(struct wt_status *s)
1594{
1595        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1596        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1597        struct wt_status_state state;
1598
1599        memset(&state, 0, sizeof(state));
1600        wt_status_get_state(&state,
1601                            s->branch && !strcmp(s->branch, "HEAD"));
1602
1603        if (s->branch) {
1604                const char *on_what = _("On branch ");
1605                const char *branch_name = s->branch;
1606                if (!strcmp(branch_name, "HEAD")) {
1607                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1608                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1609                                if (state.rebase_interactive_in_progress)
1610                                        on_what = _("interactive rebase in progress; onto ");
1611                                else
1612                                        on_what = _("rebase in progress; onto ");
1613                                branch_name = state.onto;
1614                        } else if (state.detached_from) {
1615                                branch_name = state.detached_from;
1616                                if (state.detached_at)
1617                                        on_what = _("HEAD detached at ");
1618                                else
1619                                        on_what = _("HEAD detached from ");
1620                        } else {
1621                                branch_name = "";
1622                                on_what = _("Not currently on any branch.");
1623                        }
1624                } else
1625                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1626                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1627                status_printf_more(s, branch_status_color, "%s", on_what);
1628                status_printf_more(s, branch_color, "%s\n", branch_name);
1629                if (!s->is_initial)
1630                        wt_longstatus_print_tracking(s);
1631        }
1632
1633        wt_longstatus_print_state(s, &state);
1634        free(state.branch);
1635        free(state.onto);
1636        free(state.detached_from);
1637
1638        if (s->is_initial) {
1639                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1640                status_printf_ln(s, color(WT_STATUS_HEADER, s),
1641                                 s->commit_template
1642                                 ? _("Initial commit")
1643                                 : _("No commits yet"));
1644                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1645        }
1646
1647        wt_longstatus_print_updated(s);
1648        wt_longstatus_print_unmerged(s);
1649        wt_longstatus_print_changed(s);
1650        if (s->submodule_summary &&
1651            (!s->ignore_submodule_arg ||
1652             strcmp(s->ignore_submodule_arg, "all"))) {
1653                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1654                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1655        }
1656        if (s->show_untracked_files) {
1657                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1658                if (s->show_ignored_mode)
1659                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1660                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1661                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1662                        status_printf_ln(s, GIT_COLOR_NORMAL,
1663                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1664                                           "may speed it up, but you have to be careful not to forget to add\n"
1665                                           "new files yourself (see 'git help status')."),
1666                                         s->untracked_in_ms / 1000.0);
1667                }
1668        } else if (s->commitable)
1669                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1670                        s->hints
1671                        ? _(" (use -u option to show untracked files)") : "");
1672
1673        if (s->verbose)
1674                wt_longstatus_print_verbose(s);
1675        if (!s->commitable) {
1676                if (s->amend)
1677                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1678                else if (s->nowarn)
1679                        ; /* nothing */
1680                else if (s->workdir_dirty) {
1681                        if (s->hints)
1682                                printf(_("no changes added to commit "
1683                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1684                        else
1685                                printf(_("no changes added to commit\n"));
1686                } else if (s->untracked.nr) {
1687                        if (s->hints)
1688                                printf(_("nothing added to commit but untracked files "
1689                                         "present (use \"git add\" to track)\n"));
1690                        else
1691                                printf(_("nothing added to commit but untracked files present\n"));
1692                } else if (s->is_initial) {
1693                        if (s->hints)
1694                                printf(_("nothing to commit (create/copy files "
1695                                         "and use \"git add\" to track)\n"));
1696                        else
1697                                printf(_("nothing to commit\n"));
1698                } else if (!s->show_untracked_files) {
1699                        if (s->hints)
1700                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1701                        else
1702                                printf(_("nothing to commit\n"));
1703                } else
1704                        printf(_("nothing to commit, working tree clean\n"));
1705        }
1706        if(s->show_stash)
1707                wt_longstatus_print_stash_summary(s);
1708}
1709
1710static void wt_shortstatus_unmerged(struct string_list_item *it,
1711                           struct wt_status *s)
1712{
1713        struct wt_status_change_data *d = it->util;
1714        const char *how = "??";
1715
1716        switch (d->stagemask) {
1717        case 1: how = "DD"; break; /* both deleted */
1718        case 2: how = "AU"; break; /* added by us */
1719        case 3: how = "UD"; break; /* deleted by them */
1720        case 4: how = "UA"; break; /* added by them */
1721        case 5: how = "DU"; break; /* deleted by us */
1722        case 6: how = "AA"; break; /* both added */
1723        case 7: how = "UU"; break; /* both modified */
1724        }
1725        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1726        if (s->null_termination) {
1727                fprintf(stdout, " %s%c", it->string, 0);
1728        } else {
1729                struct strbuf onebuf = STRBUF_INIT;
1730                const char *one;
1731                one = quote_path(it->string, s->prefix, &onebuf);
1732                printf(" %s\n", one);
1733                strbuf_release(&onebuf);
1734        }
1735}
1736
1737static void wt_shortstatus_status(struct string_list_item *it,
1738                         struct wt_status *s)
1739{
1740        struct wt_status_change_data *d = it->util;
1741
1742        if (d->index_status)
1743                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1744        else
1745                putchar(' ');
1746        if (d->worktree_status)
1747                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1748        else
1749                putchar(' ');
1750        putchar(' ');
1751        if (s->null_termination) {
1752                fprintf(stdout, "%s%c", it->string, 0);
1753                if (d->rename_source)
1754                        fprintf(stdout, "%s%c", d->rename_source, 0);
1755        } else {
1756                struct strbuf onebuf = STRBUF_INIT;
1757                const char *one;
1758
1759                if (d->rename_source) {
1760                        one = quote_path(d->rename_source, s->prefix, &onebuf);
1761                        if (*one != '"' && strchr(one, ' ') != NULL) {
1762                                putchar('"');
1763                                strbuf_addch(&onebuf, '"');
1764                                one = onebuf.buf;
1765                        }
1766                        printf("%s -> ", one);
1767                        strbuf_release(&onebuf);
1768                }
1769                one = quote_path(it->string, s->prefix, &onebuf);
1770                if (*one != '"' && strchr(one, ' ') != NULL) {
1771                        putchar('"');
1772                        strbuf_addch(&onebuf, '"');
1773                        one = onebuf.buf;
1774                }
1775                printf("%s\n", one);
1776                strbuf_release(&onebuf);
1777        }
1778}
1779
1780static void wt_shortstatus_other(struct string_list_item *it,
1781                                 struct wt_status *s, const char *sign)
1782{
1783        if (s->null_termination) {
1784                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1785        } else {
1786                struct strbuf onebuf = STRBUF_INIT;
1787                const char *one;
1788                one = quote_path(it->string, s->prefix, &onebuf);
1789                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1790                printf(" %s\n", one);
1791                strbuf_release(&onebuf);
1792        }
1793}
1794
1795static void wt_shortstatus_print_tracking(struct wt_status *s)
1796{
1797        struct branch *branch;
1798        const char *header_color = color(WT_STATUS_HEADER, s);
1799        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1800        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1801
1802        const char *base;
1803        char *short_base;
1804        const char *branch_name;
1805        int num_ours, num_theirs, sti;
1806        int upstream_is_gone = 0;
1807
1808        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1809
1810        if (!s->branch)
1811                return;
1812        branch_name = s->branch;
1813
1814#define LABEL(string) (s->no_gettext ? (string) : _(string))
1815
1816        if (s->is_initial)
1817                color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
1818
1819        if (!strcmp(s->branch, "HEAD")) {
1820                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1821                              LABEL(N_("HEAD (no branch)")));
1822                goto conclude;
1823        }
1824
1825        skip_prefix(branch_name, "refs/heads/", &branch_name);
1826
1827        branch = branch_get(branch_name);
1828
1829        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1830
1831        sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
1832                                 s->ahead_behind_flags);
1833        if (sti < 0) {
1834                if (!base)
1835                        goto conclude;
1836
1837                upstream_is_gone = 1;
1838        }
1839
1840        short_base = shorten_unambiguous_ref(base, 0);
1841        color_fprintf(s->fp, header_color, "...");
1842        color_fprintf(s->fp, branch_color_remote, "%s", short_base);
1843        free(short_base);
1844
1845        if (!upstream_is_gone && !sti)
1846                goto conclude;
1847
1848        color_fprintf(s->fp, header_color, " [");
1849        if (upstream_is_gone) {
1850                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1851        } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
1852                color_fprintf(s->fp, header_color, LABEL(N_("different")));
1853        } else if (!num_ours) {
1854                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1855                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1856        } else if (!num_theirs) {
1857                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1858                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1859        } else {
1860                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1861                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1862                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1863                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1864        }
1865
1866        color_fprintf(s->fp, header_color, "]");
1867 conclude:
1868        fputc(s->null_termination ? '\0' : '\n', s->fp);
1869}
1870
1871static void wt_shortstatus_print(struct wt_status *s)
1872{
1873        struct string_list_item *it;
1874
1875        if (s->show_branch)
1876                wt_shortstatus_print_tracking(s);
1877
1878        for_each_string_list_item(it, &s->change) {
1879                struct wt_status_change_data *d = it->util;
1880
1881                if (d->stagemask)
1882                        wt_shortstatus_unmerged(it, s);
1883                else
1884                        wt_shortstatus_status(it, s);
1885        }
1886        for_each_string_list_item(it, &s->untracked)
1887                wt_shortstatus_other(it, s, "??");
1888
1889        for_each_string_list_item(it, &s->ignored)
1890                wt_shortstatus_other(it, s, "!!");
1891}
1892
1893static void wt_porcelain_print(struct wt_status *s)
1894{
1895        s->use_color = 0;
1896        s->relative_paths = 0;
1897        s->prefix = NULL;
1898        s->no_gettext = 1;
1899        wt_shortstatus_print(s);
1900}
1901
1902/*
1903 * Print branch information for porcelain v2 output.  These lines
1904 * are printed when the '--branch' parameter is given.
1905 *
1906 *    # branch.oid <commit><eol>
1907 *    # branch.head <head><eol>
1908 *   [# branch.upstream <upstream><eol>
1909 *   [# branch.ab +<ahead> -<behind><eol>]]
1910 *
1911 *      <commit> ::= the current commit hash or the the literal
1912 *                   "(initial)" to indicate an initialized repo
1913 *                   with no commits.
1914 *
1915 *        <head> ::= <branch_name> the current branch name or
1916 *                   "(detached)" literal when detached head or
1917 *                   "(unknown)" when something is wrong.
1918 *
1919 *    <upstream> ::= the upstream branch name, when set.
1920 *
1921 *       <ahead> ::= integer ahead value or '?'.
1922 *
1923 *      <behind> ::= integer behind value or '?'.
1924 *
1925 * The end-of-line is defined by the -z flag.
1926 *
1927 *                 <eol> ::= NUL when -z,
1928 *                           LF when NOT -z.
1929 *
1930 * When an upstream is set and present, the 'branch.ab' line will
1931 * be printed with the ahead/behind counts for the branch and the
1932 * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
1933 * are different, '?' will be substituted for the actual count.
1934 */
1935static void wt_porcelain_v2_print_tracking(struct wt_status *s)
1936{
1937        struct branch *branch;
1938        const char *base;
1939        const char *branch_name;
1940        struct wt_status_state state;
1941        int ab_info, nr_ahead, nr_behind;
1942        char eol = s->null_termination ? '\0' : '\n';
1943
1944        memset(&state, 0, sizeof(state));
1945        wt_status_get_state(&state, s->branch && !strcmp(s->branch, "HEAD"));
1946
1947        fprintf(s->fp, "# branch.oid %s%c",
1948                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
1949                        eol);
1950
1951        if (!s->branch)
1952                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
1953        else {
1954                if (!strcmp(s->branch, "HEAD")) {
1955                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
1956
1957                        if (state.rebase_in_progress || state.rebase_interactive_in_progress)
1958                                branch_name = state.onto;
1959                        else if (state.detached_from)
1960                                branch_name = state.detached_from;
1961                        else
1962                                branch_name = "";
1963                } else {
1964                        branch_name = NULL;
1965                        skip_prefix(s->branch, "refs/heads/", &branch_name);
1966
1967                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
1968                }
1969
1970                /* Lookup stats on the upstream tracking branch, if set. */
1971                branch = branch_get(branch_name);
1972                base = NULL;
1973                ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
1974                                             &base, s->ahead_behind_flags);
1975                if (base) {
1976                        base = shorten_unambiguous_ref(base, 0);
1977                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
1978                        free((char *)base);
1979
1980                        if (ab_info > 0) {
1981                                /* different */
1982                                if (nr_ahead || nr_behind)
1983                                        fprintf(s->fp, "# branch.ab +%d -%d%c",
1984                                                nr_ahead, nr_behind, eol);
1985                                else
1986                                        fprintf(s->fp, "# branch.ab +? -?%c",
1987                                                eol);
1988                        } else if (!ab_info) {
1989                                /* same */
1990                                fprintf(s->fp, "# branch.ab +0 -0%c", eol);
1991                        }
1992                }
1993        }
1994
1995        free(state.branch);
1996        free(state.onto);
1997        free(state.detached_from);
1998}
1999
2000/*
2001 * Convert various submodule status values into a
2002 * fixed-length string of characters in the buffer provided.
2003 */
2004static void wt_porcelain_v2_submodule_state(
2005        struct wt_status_change_data *d,
2006        char sub[5])
2007{
2008        if (S_ISGITLINK(d->mode_head) ||
2009                S_ISGITLINK(d->mode_index) ||
2010                S_ISGITLINK(d->mode_worktree)) {
2011                sub[0] = 'S';
2012                sub[1] = d->new_submodule_commits ? 'C' : '.';
2013                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2014                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2015        } else {
2016                sub[0] = 'N';
2017                sub[1] = '.';
2018                sub[2] = '.';
2019                sub[3] = '.';
2020        }
2021        sub[4] = 0;
2022}
2023
2024/*
2025 * Fix-up changed entries before we print them.
2026 */
2027static void wt_porcelain_v2_fix_up_changed(
2028        struct string_list_item *it,
2029        struct wt_status *s)
2030{
2031        struct wt_status_change_data *d = it->util;
2032
2033        if (!d->index_status) {
2034                /*
2035                 * This entry is unchanged in the index (relative to the head).
2036                 * Therefore, the collect_updated_cb was never called for this
2037                 * entry (during the head-vs-index scan) and so the head column
2038                 * fields were never set.
2039                 *
2040                 * We must have data for the index column (from the
2041                 * index-vs-worktree scan (otherwise, this entry should not be
2042                 * in the list of changes)).
2043                 *
2044                 * Copy index column fields to the head column, so that our
2045                 * output looks complete.
2046                 */
2047                assert(d->mode_head == 0);
2048                d->mode_head = d->mode_index;
2049                oidcpy(&d->oid_head, &d->oid_index);
2050        }
2051
2052        if (!d->worktree_status) {
2053                /*
2054                 * This entry is unchanged in the worktree (relative to the index).
2055                 * Therefore, the collect_changed_cb was never called for this entry
2056                 * (during the index-vs-worktree scan) and so the worktree column
2057                 * fields were never set.
2058                 *
2059                 * We must have data for the index column (from the head-vs-index
2060                 * scan).
2061                 *
2062                 * Copy the index column fields to the worktree column so that
2063                 * our output looks complete.
2064                 *
2065                 * Note that we only have a mode field in the worktree column
2066                 * because the scan code tries really hard to not have to compute it.
2067                 */
2068                assert(d->mode_worktree == 0);
2069                d->mode_worktree = d->mode_index;
2070        }
2071}
2072
2073/*
2074 * Print porcelain v2 info for tracked entries with changes.
2075 */
2076static void wt_porcelain_v2_print_changed_entry(
2077        struct string_list_item *it,
2078        struct wt_status *s)
2079{
2080        struct wt_status_change_data *d = it->util;
2081        struct strbuf buf = STRBUF_INIT;
2082        struct strbuf buf_from = STRBUF_INIT;
2083        const char *path = NULL;
2084        const char *path_from = NULL;
2085        char key[3];
2086        char submodule_token[5];
2087        char sep_char, eol_char;
2088
2089        wt_porcelain_v2_fix_up_changed(it, s);
2090        wt_porcelain_v2_submodule_state(d, submodule_token);
2091
2092        key[0] = d->index_status ? d->index_status : '.';
2093        key[1] = d->worktree_status ? d->worktree_status : '.';
2094        key[2] = 0;
2095
2096        if (s->null_termination) {
2097                /*
2098                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2099                 * A single NUL character separates them.
2100                 */
2101                sep_char = '\0';
2102                eol_char = '\0';
2103                path = it->string;
2104                path_from = d->rename_source;
2105        } else {
2106                /*
2107                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2108                 * The source path is only present when necessary.
2109                 * A single TAB separates them (because paths can contain spaces
2110                 * which are not escaped and C-quoting does escape TAB characters).
2111                 */
2112                sep_char = '\t';
2113                eol_char = '\n';
2114                path = quote_path(it->string, s->prefix, &buf);
2115                if (d->rename_source)
2116                        path_from = quote_path(d->rename_source, s->prefix, &buf_from);
2117        }
2118
2119        if (path_from)
2120                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2121                                key, submodule_token,
2122                                d->mode_head, d->mode_index, d->mode_worktree,
2123                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2124                                d->rename_status, d->rename_score,
2125                                path, sep_char, path_from, eol_char);
2126        else
2127                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2128                                key, submodule_token,
2129                                d->mode_head, d->mode_index, d->mode_worktree,
2130                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2131                                path, eol_char);
2132
2133        strbuf_release(&buf);
2134        strbuf_release(&buf_from);
2135}
2136
2137/*
2138 * Print porcelain v2 status info for unmerged entries.
2139 */
2140static void wt_porcelain_v2_print_unmerged_entry(
2141        struct string_list_item *it,
2142        struct wt_status *s)
2143{
2144        struct wt_status_change_data *d = it->util;
2145        const struct cache_entry *ce;
2146        struct strbuf buf_index = STRBUF_INIT;
2147        const char *path_index = NULL;
2148        int pos, stage, sum;
2149        struct {
2150                int mode;
2151                struct object_id oid;
2152        } stages[3];
2153        char *key;
2154        char submodule_token[5];
2155        char unmerged_prefix = 'u';
2156        char eol_char = s->null_termination ? '\0' : '\n';
2157
2158        wt_porcelain_v2_submodule_state(d, submodule_token);
2159
2160        switch (d->stagemask) {
2161        case 1: key = "DD"; break; /* both deleted */
2162        case 2: key = "AU"; break; /* added by us */
2163        case 3: key = "UD"; break; /* deleted by them */
2164        case 4: key = "UA"; break; /* added by them */
2165        case 5: key = "DU"; break; /* deleted by us */
2166        case 6: key = "AA"; break; /* both added */
2167        case 7: key = "UU"; break; /* both modified */
2168        default:
2169                BUG("unhandled unmerged status %x", d->stagemask);
2170        }
2171
2172        /*
2173         * Disregard d.aux.porcelain_v2 data that we accumulated
2174         * for the head and index columns during the scans and
2175         * replace with the actual stage data.
2176         *
2177         * Note that this is a last-one-wins for each the individual
2178         * stage [123] columns in the event of multiple cache entries
2179         * for same stage.
2180         */
2181        memset(stages, 0, sizeof(stages));
2182        sum = 0;
2183        pos = cache_name_pos(it->string, strlen(it->string));
2184        assert(pos < 0);
2185        pos = -pos-1;
2186        while (pos < active_nr) {
2187                ce = active_cache[pos++];
2188                stage = ce_stage(ce);
2189                if (strcmp(ce->name, it->string) || !stage)
2190                        break;
2191                stages[stage - 1].mode = ce->ce_mode;
2192                oidcpy(&stages[stage - 1].oid, &ce->oid);
2193                sum |= (1 << (stage - 1));
2194        }
2195        if (sum != d->stagemask)
2196                BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2197
2198        if (s->null_termination)
2199                path_index = it->string;
2200        else
2201                path_index = quote_path(it->string, s->prefix, &buf_index);
2202
2203        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2204                        unmerged_prefix, key, submodule_token,
2205                        stages[0].mode, /* stage 1 */
2206                        stages[1].mode, /* stage 2 */
2207                        stages[2].mode, /* stage 3 */
2208                        d->mode_worktree,
2209                        oid_to_hex(&stages[0].oid), /* stage 1 */
2210                        oid_to_hex(&stages[1].oid), /* stage 2 */
2211                        oid_to_hex(&stages[2].oid), /* stage 3 */
2212                        path_index,
2213                        eol_char);
2214
2215        strbuf_release(&buf_index);
2216}
2217
2218/*
2219 * Print porcelain V2 status info for untracked and ignored entries.
2220 */
2221static void wt_porcelain_v2_print_other(
2222        struct string_list_item *it,
2223        struct wt_status *s,
2224        char prefix)
2225{
2226        struct strbuf buf = STRBUF_INIT;
2227        const char *path;
2228        char eol_char;
2229
2230        if (s->null_termination) {
2231                path = it->string;
2232                eol_char = '\0';
2233        } else {
2234                path = quote_path(it->string, s->prefix, &buf);
2235                eol_char = '\n';
2236        }
2237
2238        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2239
2240        strbuf_release(&buf);
2241}
2242
2243/*
2244 * Print porcelain V2 status.
2245 *
2246 * [<v2_branch>]
2247 * [<v2_changed_items>]*
2248 * [<v2_unmerged_items>]*
2249 * [<v2_untracked_items>]*
2250 * [<v2_ignored_items>]*
2251 *
2252 */
2253static void wt_porcelain_v2_print(struct wt_status *s)
2254{
2255        struct wt_status_change_data *d;
2256        struct string_list_item *it;
2257        int i;
2258
2259        if (s->show_branch)
2260                wt_porcelain_v2_print_tracking(s);
2261
2262        for (i = 0; i < s->change.nr; i++) {
2263                it = &(s->change.items[i]);
2264                d = it->util;
2265                if (!d->stagemask)
2266                        wt_porcelain_v2_print_changed_entry(it, s);
2267        }
2268
2269        for (i = 0; i < s->change.nr; i++) {
2270                it = &(s->change.items[i]);
2271                d = it->util;
2272                if (d->stagemask)
2273                        wt_porcelain_v2_print_unmerged_entry(it, s);
2274        }
2275
2276        for (i = 0; i < s->untracked.nr; i++) {
2277                it = &(s->untracked.items[i]);
2278                wt_porcelain_v2_print_other(it, s, '?');
2279        }
2280
2281        for (i = 0; i < s->ignored.nr; i++) {
2282                it = &(s->ignored.items[i]);
2283                wt_porcelain_v2_print_other(it, s, '!');
2284        }
2285}
2286
2287void wt_status_print(struct wt_status *s)
2288{
2289        switch (s->status_format) {
2290        case STATUS_FORMAT_SHORT:
2291                wt_shortstatus_print(s);
2292                break;
2293        case STATUS_FORMAT_PORCELAIN:
2294                wt_porcelain_print(s);
2295                break;
2296        case STATUS_FORMAT_PORCELAIN_V2:
2297                wt_porcelain_v2_print(s);
2298                break;
2299        case STATUS_FORMAT_UNSPECIFIED:
2300                BUG("finalize_deferred_config() should have been called");
2301                break;
2302        case STATUS_FORMAT_NONE:
2303        case STATUS_FORMAT_LONG:
2304                wt_longstatus_print(s);
2305                break;
2306        }
2307}
2308
2309/**
2310 * Returns 1 if there are unstaged changes, 0 otherwise.
2311 */
2312int has_unstaged_changes(int ignore_submodules)
2313{
2314        struct rev_info rev_info;
2315        int result;
2316
2317        init_revisions(&rev_info, NULL);
2318        if (ignore_submodules) {
2319                rev_info.diffopt.flags.ignore_submodules = 1;
2320                rev_info.diffopt.flags.override_submodule_config = 1;
2321        }
2322        rev_info.diffopt.flags.quick = 1;
2323        diff_setup_done(&rev_info.diffopt);
2324        result = run_diff_files(&rev_info, 0);
2325        return diff_result_code(&rev_info.diffopt, result);
2326}
2327
2328/**
2329 * Returns 1 if there are uncommitted changes, 0 otherwise.
2330 */
2331int has_uncommitted_changes(int ignore_submodules)
2332{
2333        struct rev_info rev_info;
2334        int result;
2335
2336        if (is_cache_unborn())
2337                return 0;
2338
2339        init_revisions(&rev_info, NULL);
2340        if (ignore_submodules)
2341                rev_info.diffopt.flags.ignore_submodules = 1;
2342        rev_info.diffopt.flags.quick = 1;
2343        add_head_to_pending(&rev_info);
2344        diff_setup_done(&rev_info.diffopt);
2345        result = run_diff_index(&rev_info, 1);
2346        return diff_result_code(&rev_info.diffopt, result);
2347}
2348
2349/**
2350 * If the work tree has unstaged or uncommitted changes, dies with the
2351 * appropriate message.
2352 */
2353int require_clean_work_tree(const char *action, const char *hint, int ignore_submodules, int gently)
2354{
2355        struct lock_file lock_file = LOCK_INIT;
2356        int err = 0, fd;
2357
2358        fd = hold_locked_index(&lock_file, 0);
2359        refresh_cache(REFRESH_QUIET);
2360        if (0 <= fd)
2361                update_index_if_able(&the_index, &lock_file);
2362        rollback_lock_file(&lock_file);
2363
2364        if (has_unstaged_changes(ignore_submodules)) {
2365                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2366                error(_("cannot %s: You have unstaged changes."), _(action));
2367                err = 1;
2368        }
2369
2370        if (has_uncommitted_changes(ignore_submodules)) {
2371                if (err)
2372                        error(_("additionally, your index contains uncommitted changes."));
2373                else
2374                        error(_("cannot %s: Your index contains uncommitted changes."),
2375                              _(action));
2376                err = 1;
2377        }
2378
2379        if (err) {
2380                if (hint)
2381                        error("%s", hint);
2382                if (!gently)
2383                        exit(128);
2384        }
2385
2386        return err;
2387}