wt-status.con commit merge: remove drop_save() in favor of remove_merge_branch_state() (b643355)
   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 repository *r, struct wt_status *s)
 123{
 124        memset(s, 0, sizeof(*s));
 125        s->repo = r;
 126        memcpy(s->color_palette, default_wt_status_colors,
 127               sizeof(default_wt_status_colors));
 128        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 129        s->use_color = -1;
 130        s->relative_paths = 1;
 131        s->branch = resolve_refdup("HEAD", 0, NULL, NULL);
 132        s->reference = "HEAD";
 133        s->fp = stdout;
 134        s->index_file = get_index_file();
 135        s->change.strdup_strings = 1;
 136        s->untracked.strdup_strings = 1;
 137        s->ignored.strdup_strings = 1;
 138        s->show_branch = -1;  /* unspecified */
 139        s->show_stash = 0;
 140        s->ahead_behind_flags = AHEAD_BEHIND_UNSPECIFIED;
 141        s->display_comment_prefix = 0;
 142        s->detect_rename = -1;
 143        s->rename_score = -1;
 144        s->rename_limit = -1;
 145}
 146
 147static void wt_longstatus_print_unmerged_header(struct wt_status *s)
 148{
 149        int i;
 150        int del_mod_conflict = 0;
 151        int both_deleted = 0;
 152        int not_deleted = 0;
 153        const char *c = color(WT_STATUS_HEADER, s);
 154
 155        status_printf_ln(s, c, _("Unmerged paths:"));
 156
 157        for (i = 0; i < s->change.nr; i++) {
 158                struct string_list_item *it = &(s->change.items[i]);
 159                struct wt_status_change_data *d = it->util;
 160
 161                switch (d->stagemask) {
 162                case 0:
 163                        break;
 164                case 1:
 165                        both_deleted = 1;
 166                        break;
 167                case 3:
 168                case 5:
 169                        del_mod_conflict = 1;
 170                        break;
 171                default:
 172                        not_deleted = 1;
 173                        break;
 174                }
 175        }
 176
 177        if (!s->hints)
 178                return;
 179        if (s->whence != FROM_COMMIT)
 180                ;
 181        else if (!s->is_initial)
 182                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 183        else
 184                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 185
 186        if (!both_deleted) {
 187                if (!del_mod_conflict)
 188                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 189                else
 190                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 191        } else if (!del_mod_conflict && !not_deleted) {
 192                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 193        } else {
 194                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 195        }
 196        status_printf_ln(s, c, "%s", "");
 197}
 198
 199static void wt_longstatus_print_cached_header(struct wt_status *s)
 200{
 201        const char *c = color(WT_STATUS_HEADER, s);
 202
 203        status_printf_ln(s, c, _("Changes to be committed:"));
 204        if (!s->hints)
 205                return;
 206        if (s->whence != FROM_COMMIT)
 207                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 208        else if (!s->is_initial)
 209                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 210        else
 211                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 212        status_printf_ln(s, c, "%s", "");
 213}
 214
 215static void wt_longstatus_print_dirty_header(struct wt_status *s,
 216                                             int has_deleted,
 217                                             int has_dirty_submodules)
 218{
 219        const char *c = color(WT_STATUS_HEADER, s);
 220
 221        status_printf_ln(s, c, _("Changes not staged for commit:"));
 222        if (!s->hints)
 223                return;
 224        if (!has_deleted)
 225                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 226        else
 227                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 228        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 229        if (has_dirty_submodules)
 230                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 231        status_printf_ln(s, c, "%s", "");
 232}
 233
 234static void wt_longstatus_print_other_header(struct wt_status *s,
 235                                             const char *what,
 236                                             const char *how)
 237{
 238        const char *c = color(WT_STATUS_HEADER, s);
 239        status_printf_ln(s, c, "%s:", what);
 240        if (!s->hints)
 241                return;
 242        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 243        status_printf_ln(s, c, "%s", "");
 244}
 245
 246static void wt_longstatus_print_trailer(struct wt_status *s)
 247{
 248        status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 249}
 250
 251#define quote_path quote_path_relative
 252
 253static const char *wt_status_unmerged_status_string(int stagemask)
 254{
 255        switch (stagemask) {
 256        case 1:
 257                return _("both deleted:");
 258        case 2:
 259                return _("added by us:");
 260        case 3:
 261                return _("deleted by them:");
 262        case 4:
 263                return _("added by them:");
 264        case 5:
 265                return _("deleted by us:");
 266        case 6:
 267                return _("both added:");
 268        case 7:
 269                return _("both modified:");
 270        default:
 271                BUG("unhandled unmerged status %x", stagemask);
 272        }
 273}
 274
 275static const char *wt_status_diff_status_string(int status)
 276{
 277        switch (status) {
 278        case DIFF_STATUS_ADDED:
 279                return _("new file:");
 280        case DIFF_STATUS_COPIED:
 281                return _("copied:");
 282        case DIFF_STATUS_DELETED:
 283                return _("deleted:");
 284        case DIFF_STATUS_MODIFIED:
 285                return _("modified:");
 286        case DIFF_STATUS_RENAMED:
 287                return _("renamed:");
 288        case DIFF_STATUS_TYPE_CHANGED:
 289                return _("typechange:");
 290        case DIFF_STATUS_UNKNOWN:
 291                return _("unknown:");
 292        case DIFF_STATUS_UNMERGED:
 293                return _("unmerged:");
 294        default:
 295                return NULL;
 296        }
 297}
 298
 299static int maxwidth(const char *(*label)(int), int minval, int maxval)
 300{
 301        int result = 0, i;
 302
 303        for (i = minval; i <= maxval; i++) {
 304                const char *s = label(i);
 305                int len = s ? utf8_strwidth(s) : 0;
 306                if (len > result)
 307                        result = len;
 308        }
 309        return result;
 310}
 311
 312static void wt_longstatus_print_unmerged_data(struct wt_status *s,
 313                                              struct string_list_item *it)
 314{
 315        const char *c = color(WT_STATUS_UNMERGED, s);
 316        struct wt_status_change_data *d = it->util;
 317        struct strbuf onebuf = STRBUF_INIT;
 318        static char *padding;
 319        static int label_width;
 320        const char *one, *how;
 321        int len;
 322
 323        if (!padding) {
 324                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 325                label_width += strlen(" ");
 326                padding = xmallocz(label_width);
 327                memset(padding, ' ', label_width);
 328        }
 329
 330        one = quote_path(it->string, s->prefix, &onebuf);
 331        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 332
 333        how = wt_status_unmerged_status_string(d->stagemask);
 334        len = label_width - utf8_strwidth(how);
 335        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 336        strbuf_release(&onebuf);
 337}
 338
 339static void wt_longstatus_print_change_data(struct wt_status *s,
 340                                            int change_type,
 341                                            struct string_list_item *it)
 342{
 343        struct wt_status_change_data *d = it->util;
 344        const char *c = color(change_type, s);
 345        int status;
 346        char *one_name;
 347        char *two_name;
 348        const char *one, *two;
 349        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 350        struct strbuf extra = STRBUF_INIT;
 351        static char *padding;
 352        static int label_width;
 353        const char *what;
 354        int len;
 355
 356        if (!padding) {
 357                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 358                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 359                label_width += strlen(" ");
 360                padding = xmallocz(label_width);
 361                memset(padding, ' ', label_width);
 362        }
 363
 364        one_name = two_name = it->string;
 365        switch (change_type) {
 366        case WT_STATUS_UPDATED:
 367                status = d->index_status;
 368                break;
 369        case WT_STATUS_CHANGED:
 370                if (d->new_submodule_commits || d->dirty_submodule) {
 371                        strbuf_addstr(&extra, " (");
 372                        if (d->new_submodule_commits)
 373                                strbuf_addstr(&extra, _("new commits, "));
 374                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 375                                strbuf_addstr(&extra, _("modified content, "));
 376                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 377                                strbuf_addstr(&extra, _("untracked content, "));
 378                        strbuf_setlen(&extra, extra.len - 2);
 379                        strbuf_addch(&extra, ')');
 380                }
 381                status = d->worktree_status;
 382                break;
 383        default:
 384                BUG("unhandled change_type %d in wt_longstatus_print_change_data",
 385                    change_type);
 386        }
 387
 388        /*
 389         * Only pick up the rename it's relevant. If the rename is for
 390         * the changed section and we're printing the updated section,
 391         * ignore it.
 392         */
 393        if (d->rename_status == status)
 394                one_name = d->rename_source;
 395
 396        one = quote_path(one_name, s->prefix, &onebuf);
 397        two = quote_path(two_name, s->prefix, &twobuf);
 398
 399        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 400        what = wt_status_diff_status_string(status);
 401        if (!what)
 402                BUG("unhandled diff status %c", status);
 403        len = label_width - utf8_strwidth(what);
 404        assert(len >= 0);
 405        if (one_name != two_name)
 406                status_printf_more(s, c, "%s%.*s%s -> %s",
 407                                   what, len, padding, one, two);
 408        else
 409                status_printf_more(s, c, "%s%.*s%s",
 410                                   what, len, padding, one);
 411        if (extra.len) {
 412                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 413                strbuf_release(&extra);
 414        }
 415        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 416        strbuf_release(&onebuf);
 417        strbuf_release(&twobuf);
 418}
 419
 420static char short_submodule_status(struct wt_status_change_data *d)
 421{
 422        if (d->new_submodule_commits)
 423                return 'M';
 424        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 425                return 'm';
 426        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 427                return '?';
 428        return d->worktree_status;
 429}
 430
 431static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 432                                         struct diff_options *options,
 433                                         void *data)
 434{
 435        struct wt_status *s = data;
 436        int i;
 437
 438        if (!q->nr)
 439                return;
 440        s->workdir_dirty = 1;
 441        for (i = 0; i < q->nr; i++) {
 442                struct diff_filepair *p;
 443                struct string_list_item *it;
 444                struct wt_status_change_data *d;
 445
 446                p = q->queue[i];
 447                it = string_list_insert(&s->change, p->two->path);
 448                d = it->util;
 449                if (!d) {
 450                        d = xcalloc(1, sizeof(*d));
 451                        it->util = d;
 452                }
 453                if (!d->worktree_status)
 454                        d->worktree_status = p->status;
 455                if (S_ISGITLINK(p->two->mode)) {
 456                        d->dirty_submodule = p->two->dirty_submodule;
 457                        d->new_submodule_commits = !oideq(&p->one->oid,
 458                                                          &p->two->oid);
 459                        if (s->status_format == STATUS_FORMAT_SHORT)
 460                                d->worktree_status = short_submodule_status(d);
 461                }
 462
 463                switch (p->status) {
 464                case DIFF_STATUS_ADDED:
 465                        d->mode_worktree = p->two->mode;
 466                        break;
 467
 468                case DIFF_STATUS_DELETED:
 469                        d->mode_index = p->one->mode;
 470                        oidcpy(&d->oid_index, &p->one->oid);
 471                        /* mode_worktree is zero for a delete. */
 472                        break;
 473
 474                case DIFF_STATUS_COPIED:
 475                case DIFF_STATUS_RENAMED:
 476                        if (d->rename_status)
 477                                BUG("multiple renames on the same target? how?");
 478                        d->rename_source = xstrdup(p->one->path);
 479                        d->rename_score = p->score * 100 / MAX_SCORE;
 480                        d->rename_status = p->status;
 481                        /* fallthru */
 482                case DIFF_STATUS_MODIFIED:
 483                case DIFF_STATUS_TYPE_CHANGED:
 484                case DIFF_STATUS_UNMERGED:
 485                        d->mode_index = p->one->mode;
 486                        d->mode_worktree = p->two->mode;
 487                        oidcpy(&d->oid_index, &p->one->oid);
 488                        break;
 489
 490                default:
 491                        BUG("unhandled diff-files status '%c'", p->status);
 492                        break;
 493                }
 494
 495        }
 496}
 497
 498static int unmerged_mask(struct index_state *istate, const char *path)
 499{
 500        int pos, mask;
 501        const struct cache_entry *ce;
 502
 503        pos = index_name_pos(istate, path, strlen(path));
 504        if (0 <= pos)
 505                return 0;
 506
 507        mask = 0;
 508        pos = -pos-1;
 509        while (pos < istate->cache_nr) {
 510                ce = istate->cache[pos++];
 511                if (strcmp(ce->name, path) || !ce_stage(ce))
 512                        break;
 513                mask |= (1 << (ce_stage(ce) - 1));
 514        }
 515        return mask;
 516}
 517
 518static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 519                                         struct diff_options *options,
 520                                         void *data)
 521{
 522        struct wt_status *s = data;
 523        int i;
 524
 525        for (i = 0; i < q->nr; i++) {
 526                struct diff_filepair *p;
 527                struct string_list_item *it;
 528                struct wt_status_change_data *d;
 529
 530                p = q->queue[i];
 531                it = string_list_insert(&s->change, p->two->path);
 532                d = it->util;
 533                if (!d) {
 534                        d = xcalloc(1, sizeof(*d));
 535                        it->util = d;
 536                }
 537                if (!d->index_status)
 538                        d->index_status = p->status;
 539                switch (p->status) {
 540                case DIFF_STATUS_ADDED:
 541                        /* Leave {mode,oid}_head zero for an add. */
 542                        d->mode_index = p->two->mode;
 543                        oidcpy(&d->oid_index, &p->two->oid);
 544                        s->committable = 1;
 545                        break;
 546                case DIFF_STATUS_DELETED:
 547                        d->mode_head = p->one->mode;
 548                        oidcpy(&d->oid_head, &p->one->oid);
 549                        s->committable = 1;
 550                        /* Leave {mode,oid}_index zero for a delete. */
 551                        break;
 552
 553                case DIFF_STATUS_COPIED:
 554                case DIFF_STATUS_RENAMED:
 555                        if (d->rename_status)
 556                                BUG("multiple renames on the same target? how?");
 557                        d->rename_source = xstrdup(p->one->path);
 558                        d->rename_score = p->score * 100 / MAX_SCORE;
 559                        d->rename_status = p->status;
 560                        /* fallthru */
 561                case DIFF_STATUS_MODIFIED:
 562                case DIFF_STATUS_TYPE_CHANGED:
 563                        d->mode_head = p->one->mode;
 564                        d->mode_index = p->two->mode;
 565                        oidcpy(&d->oid_head, &p->one->oid);
 566                        oidcpy(&d->oid_index, &p->two->oid);
 567                        s->committable = 1;
 568                        break;
 569                case DIFF_STATUS_UNMERGED:
 570                        d->stagemask = unmerged_mask(s->repo->index,
 571                                                     p->two->path);
 572                        /*
 573                         * Don't bother setting {mode,oid}_{head,index} since the print
 574                         * code will output the stage values directly and not use the
 575                         * values in these fields.
 576                         */
 577                        break;
 578
 579                default:
 580                        BUG("unhandled diff-index status '%c'", p->status);
 581                        break;
 582                }
 583        }
 584}
 585
 586static void wt_status_collect_changes_worktree(struct wt_status *s)
 587{
 588        struct rev_info rev;
 589
 590        repo_init_revisions(s->repo, &rev, NULL);
 591        setup_revisions(0, NULL, &rev, NULL);
 592        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 593        rev.diffopt.flags.dirty_submodules = 1;
 594        rev.diffopt.ita_invisible_in_index = 1;
 595        if (!s->show_untracked_files)
 596                rev.diffopt.flags.ignore_untracked_in_submodules = 1;
 597        if (s->ignore_submodule_arg) {
 598                rev.diffopt.flags.override_submodule_config = 1;
 599                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 600        }
 601        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 602        rev.diffopt.format_callback_data = s;
 603        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 604        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 605        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 606        copy_pathspec(&rev.prune_data, &s->pathspec);
 607        run_diff_files(&rev, 0);
 608}
 609
 610static void wt_status_collect_changes_index(struct wt_status *s)
 611{
 612        struct rev_info rev;
 613        struct setup_revision_opt opt;
 614
 615        repo_init_revisions(s->repo, &rev, NULL);
 616        memset(&opt, 0, sizeof(opt));
 617        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
 618        setup_revisions(0, NULL, &rev, &opt);
 619
 620        rev.diffopt.flags.override_submodule_config = 1;
 621        rev.diffopt.ita_invisible_in_index = 1;
 622        if (s->ignore_submodule_arg) {
 623                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 624        } else {
 625                /*
 626                 * Unless the user did explicitly request a submodule ignore
 627                 * mode by passing a command line option we do not ignore any
 628                 * changed submodule SHA-1s when comparing index and HEAD, no
 629                 * matter what is configured. Otherwise the user won't be
 630                 * shown any submodules she manually added (and which are
 631                 * staged to be committed), which would be really confusing.
 632                 */
 633                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 634        }
 635
 636        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 637        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 638        rev.diffopt.format_callback_data = s;
 639        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 640        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 641        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 642        copy_pathspec(&rev.prune_data, &s->pathspec);
 643        run_diff_index(&rev, 1);
 644}
 645
 646static void wt_status_collect_changes_initial(struct wt_status *s)
 647{
 648        struct index_state *istate = s->repo->index;
 649        int i;
 650
 651        for (i = 0; i < istate->cache_nr; i++) {
 652                struct string_list_item *it;
 653                struct wt_status_change_data *d;
 654                const struct cache_entry *ce = istate->cache[i];
 655
 656                if (!ce_path_match(istate, ce, &s->pathspec, NULL))
 657                        continue;
 658                if (ce_intent_to_add(ce))
 659                        continue;
 660                it = string_list_insert(&s->change, ce->name);
 661                d = it->util;
 662                if (!d) {
 663                        d = xcalloc(1, sizeof(*d));
 664                        it->util = d;
 665                }
 666                if (ce_stage(ce)) {
 667                        d->index_status = DIFF_STATUS_UNMERGED;
 668                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 669                        /*
 670                         * Don't bother setting {mode,oid}_{head,index} since the print
 671                         * code will output the stage values directly and not use the
 672                         * values in these fields.
 673                         */
 674                        s->committable = 1;
 675                } else {
 676                        d->index_status = DIFF_STATUS_ADDED;
 677                        /* Leave {mode,oid}_head zero for adds. */
 678                        d->mode_index = ce->ce_mode;
 679                        oidcpy(&d->oid_index, &ce->oid);
 680                        s->committable = 1;
 681                }
 682        }
 683}
 684
 685static void wt_status_collect_untracked(struct wt_status *s)
 686{
 687        int i;
 688        struct dir_struct dir;
 689        uint64_t t_begin = getnanotime();
 690        struct index_state *istate = s->repo->index;
 691
 692        if (!s->show_untracked_files)
 693                return;
 694
 695        memset(&dir, 0, sizeof(dir));
 696        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 697                dir.flags |=
 698                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 699        if (s->show_ignored_mode) {
 700                dir.flags |= DIR_SHOW_IGNORED_TOO;
 701
 702                if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
 703                        dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
 704        } else {
 705                dir.untracked = istate->untracked;
 706        }
 707
 708        setup_standard_excludes(&dir);
 709
 710        fill_directory(&dir, istate, &s->pathspec);
 711
 712        for (i = 0; i < dir.nr; i++) {
 713                struct dir_entry *ent = dir.entries[i];
 714                if (index_name_is_other(istate, ent->name, ent->len) &&
 715                    dir_path_match(istate, ent, &s->pathspec, 0, NULL))
 716                        string_list_insert(&s->untracked, ent->name);
 717                free(ent);
 718        }
 719
 720        for (i = 0; i < dir.ignored_nr; i++) {
 721                struct dir_entry *ent = dir.ignored[i];
 722                if (index_name_is_other(istate, ent->name, ent->len) &&
 723                    dir_path_match(istate, ent, &s->pathspec, 0, NULL))
 724                        string_list_insert(&s->ignored, ent->name);
 725                free(ent);
 726        }
 727
 728        free(dir.entries);
 729        free(dir.ignored);
 730        clear_directory(&dir);
 731
 732        if (advice_status_u_option)
 733                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 734}
 735
 736static int has_unmerged(struct wt_status *s)
 737{
 738        int i;
 739
 740        for (i = 0; i < s->change.nr; i++) {
 741                struct wt_status_change_data *d;
 742                d = s->change.items[i].util;
 743                if (d->stagemask)
 744                        return 1;
 745        }
 746        return 0;
 747}
 748
 749void wt_status_collect(struct wt_status *s)
 750{
 751        wt_status_collect_changes_worktree(s);
 752        if (s->is_initial)
 753                wt_status_collect_changes_initial(s);
 754        else
 755                wt_status_collect_changes_index(s);
 756        wt_status_collect_untracked(s);
 757
 758        wt_status_get_state(s->repo, &s->state, s->branch && !strcmp(s->branch, "HEAD"));
 759        if (s->state.merge_in_progress && !has_unmerged(s))
 760                s->committable = 1;
 761}
 762
 763void wt_status_collect_free_buffers(struct wt_status *s)
 764{
 765        free(s->state.branch);
 766        free(s->state.onto);
 767        free(s->state.detached_from);
 768}
 769
 770static void wt_longstatus_print_unmerged(struct wt_status *s)
 771{
 772        int shown_header = 0;
 773        int i;
 774
 775        for (i = 0; i < s->change.nr; i++) {
 776                struct wt_status_change_data *d;
 777                struct string_list_item *it;
 778                it = &(s->change.items[i]);
 779                d = it->util;
 780                if (!d->stagemask)
 781                        continue;
 782                if (!shown_header) {
 783                        wt_longstatus_print_unmerged_header(s);
 784                        shown_header = 1;
 785                }
 786                wt_longstatus_print_unmerged_data(s, it);
 787        }
 788        if (shown_header)
 789                wt_longstatus_print_trailer(s);
 790
 791}
 792
 793static void wt_longstatus_print_updated(struct wt_status *s)
 794{
 795        int shown_header = 0;
 796        int i;
 797
 798        for (i = 0; i < s->change.nr; i++) {
 799                struct wt_status_change_data *d;
 800                struct string_list_item *it;
 801                it = &(s->change.items[i]);
 802                d = it->util;
 803                if (!d->index_status ||
 804                    d->index_status == DIFF_STATUS_UNMERGED)
 805                        continue;
 806                if (!shown_header) {
 807                        wt_longstatus_print_cached_header(s);
 808                        shown_header = 1;
 809                }
 810                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 811        }
 812        if (shown_header)
 813                wt_longstatus_print_trailer(s);
 814}
 815
 816/*
 817 * -1 : has delete
 818 *  0 : no change
 819 *  1 : some change but no delete
 820 */
 821static int wt_status_check_worktree_changes(struct wt_status *s,
 822                                             int *dirty_submodules)
 823{
 824        int i;
 825        int changes = 0;
 826
 827        *dirty_submodules = 0;
 828
 829        for (i = 0; i < s->change.nr; i++) {
 830                struct wt_status_change_data *d;
 831                d = s->change.items[i].util;
 832                if (!d->worktree_status ||
 833                    d->worktree_status == DIFF_STATUS_UNMERGED)
 834                        continue;
 835                if (!changes)
 836                        changes = 1;
 837                if (d->dirty_submodule)
 838                        *dirty_submodules = 1;
 839                if (d->worktree_status == DIFF_STATUS_DELETED)
 840                        changes = -1;
 841        }
 842        return changes;
 843}
 844
 845static void wt_longstatus_print_changed(struct wt_status *s)
 846{
 847        int i, dirty_submodules;
 848        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 849
 850        if (!worktree_changes)
 851                return;
 852
 853        wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 854
 855        for (i = 0; i < s->change.nr; i++) {
 856                struct wt_status_change_data *d;
 857                struct string_list_item *it;
 858                it = &(s->change.items[i]);
 859                d = it->util;
 860                if (!d->worktree_status ||
 861                    d->worktree_status == DIFF_STATUS_UNMERGED)
 862                        continue;
 863                wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 864        }
 865        wt_longstatus_print_trailer(s);
 866}
 867
 868static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
 869                            const char *email, timestamp_t timestamp, int tz,
 870                            const char *message, void *cb_data)
 871{
 872        int *c = cb_data;
 873        (*c)++;
 874        return 0;
 875}
 876
 877static void wt_longstatus_print_stash_summary(struct wt_status *s)
 878{
 879        int stash_count = 0;
 880
 881        for_each_reflog_ent("refs/stash", stash_count_refs, &stash_count);
 882        if (stash_count > 0)
 883                status_printf_ln(s, GIT_COLOR_NORMAL,
 884                                 Q_("Your stash currently has %d entry",
 885                                    "Your stash currently has %d entries", stash_count),
 886                                 stash_count);
 887}
 888
 889static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 890{
 891        struct child_process sm_summary = CHILD_PROCESS_INIT;
 892        struct strbuf cmd_stdout = STRBUF_INIT;
 893        struct strbuf summary = STRBUF_INIT;
 894        char *summary_content;
 895
 896        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 897                         s->index_file);
 898
 899        argv_array_push(&sm_summary.args, "submodule");
 900        argv_array_push(&sm_summary.args, "summary");
 901        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 902        argv_array_push(&sm_summary.args, "--for-status");
 903        argv_array_push(&sm_summary.args, "--summary-limit");
 904        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 905        if (!uncommitted)
 906                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 907
 908        sm_summary.git_cmd = 1;
 909        sm_summary.no_stdin = 1;
 910
 911        capture_command(&sm_summary, &cmd_stdout, 1024);
 912
 913        /* prepend header, only if there's an actual output */
 914        if (cmd_stdout.len) {
 915                if (uncommitted)
 916                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 917                else
 918                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 919                strbuf_addstr(&summary, "\n\n");
 920        }
 921        strbuf_addbuf(&summary, &cmd_stdout);
 922        strbuf_release(&cmd_stdout);
 923
 924        if (s->display_comment_prefix) {
 925                size_t len;
 926                summary_content = strbuf_detach(&summary, &len);
 927                strbuf_add_commented_lines(&summary, summary_content, len);
 928                free(summary_content);
 929        }
 930
 931        fputs(summary.buf, s->fp);
 932        strbuf_release(&summary);
 933}
 934
 935static void wt_longstatus_print_other(struct wt_status *s,
 936                                      struct string_list *l,
 937                                      const char *what,
 938                                      const char *how)
 939{
 940        int i;
 941        struct strbuf buf = STRBUF_INIT;
 942        static struct string_list output = STRING_LIST_INIT_DUP;
 943        struct column_options copts;
 944
 945        if (!l->nr)
 946                return;
 947
 948        wt_longstatus_print_other_header(s, what, how);
 949
 950        for (i = 0; i < l->nr; i++) {
 951                struct string_list_item *it;
 952                const char *path;
 953                it = &(l->items[i]);
 954                path = quote_path(it->string, s->prefix, &buf);
 955                if (column_active(s->colopts)) {
 956                        string_list_append(&output, path);
 957                        continue;
 958                }
 959                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 960                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 961                                   "%s\n", path);
 962        }
 963
 964        strbuf_release(&buf);
 965        if (!column_active(s->colopts))
 966                goto conclude;
 967
 968        strbuf_addf(&buf, "%s%s\t%s",
 969                    color(WT_STATUS_HEADER, s),
 970                    s->display_comment_prefix ? "#" : "",
 971                    color(WT_STATUS_UNTRACKED, s));
 972        memset(&copts, 0, sizeof(copts));
 973        copts.padding = 1;
 974        copts.indent = buf.buf;
 975        if (want_color(s->use_color))
 976                copts.nl = GIT_COLOR_RESET "\n";
 977        print_columns(&output, s->colopts, &copts);
 978        string_list_clear(&output, 0);
 979        strbuf_release(&buf);
 980conclude:
 981        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 982}
 983
 984size_t wt_status_locate_end(const char *s, size_t len)
 985{
 986        const char *p;
 987        struct strbuf pattern = STRBUF_INIT;
 988
 989        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
 990        if (starts_with(s, pattern.buf + 1))
 991                len = 0;
 992        else if ((p = strstr(s, pattern.buf)))
 993                len = p - s + 1;
 994        strbuf_release(&pattern);
 995        return len;
 996}
 997
 998void wt_status_add_cut_line(FILE *fp)
 999{
1000        const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
1001        struct strbuf buf = STRBUF_INIT;
1002
1003        fprintf(fp, "%c %s", comment_line_char, cut_line);
1004        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
1005        fputs(buf.buf, fp);
1006        strbuf_release(&buf);
1007}
1008
1009static void wt_longstatus_print_verbose(struct wt_status *s)
1010{
1011        struct rev_info rev;
1012        struct setup_revision_opt opt;
1013        int dirty_submodules;
1014        const char *c = color(WT_STATUS_HEADER, s);
1015
1016        repo_init_revisions(s->repo, &rev, NULL);
1017        rev.diffopt.flags.allow_textconv = 1;
1018        rev.diffopt.ita_invisible_in_index = 1;
1019
1020        memset(&opt, 0, sizeof(opt));
1021        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
1022        setup_revisions(0, NULL, &rev, &opt);
1023
1024        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
1025        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
1026        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
1027        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
1028        rev.diffopt.file = s->fp;
1029        rev.diffopt.close_file = 0;
1030        /*
1031         * If we're not going to stdout, then we definitely don't
1032         * want color, since we are going to the commit message
1033         * file (and even the "auto" setting won't work, since it
1034         * will have checked isatty on stdout). But we then do want
1035         * to insert the scissor line here to reliably remove the
1036         * diff before committing.
1037         */
1038        if (s->fp != stdout) {
1039                rev.diffopt.use_color = 0;
1040                wt_status_add_cut_line(s->fp);
1041        }
1042        if (s->verbose > 1 && s->committable) {
1043                /* print_updated() printed a header, so do we */
1044                if (s->fp != stdout)
1045                        wt_longstatus_print_trailer(s);
1046                status_printf_ln(s, c, _("Changes to be committed:"));
1047                rev.diffopt.a_prefix = "c/";
1048                rev.diffopt.b_prefix = "i/";
1049        } /* else use prefix as per user config */
1050        run_diff_index(&rev, 1);
1051        if (s->verbose > 1 &&
1052            wt_status_check_worktree_changes(s, &dirty_submodules)) {
1053                status_printf_ln(s, c,
1054                        "--------------------------------------------------");
1055                status_printf_ln(s, c, _("Changes not staged for commit:"));
1056                setup_work_tree();
1057                rev.diffopt.a_prefix = "i/";
1058                rev.diffopt.b_prefix = "w/";
1059                run_diff_files(&rev, 0);
1060        }
1061}
1062
1063static void wt_longstatus_print_tracking(struct wt_status *s)
1064{
1065        struct strbuf sb = STRBUF_INIT;
1066        const char *cp, *ep, *branch_name;
1067        struct branch *branch;
1068        char comment_line_string[3];
1069        int i;
1070
1071        assert(s->branch && !s->is_initial);
1072        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
1073                return;
1074        branch = branch_get(branch_name);
1075        if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
1076                return;
1077
1078        i = 0;
1079        if (s->display_comment_prefix) {
1080                comment_line_string[i++] = comment_line_char;
1081                comment_line_string[i++] = ' ';
1082        }
1083        comment_line_string[i] = '\0';
1084
1085        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
1086                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1087                                 "%s%.*s", comment_line_string,
1088                                 (int)(ep - cp), cp);
1089        if (s->display_comment_prefix)
1090                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
1091                                 comment_line_char);
1092        else
1093                fputs("\n", s->fp);
1094        strbuf_release(&sb);
1095}
1096
1097static void show_merge_in_progress(struct wt_status *s,
1098                                   const char *color)
1099{
1100        if (has_unmerged(s)) {
1101                status_printf_ln(s, color, _("You have unmerged paths."));
1102                if (s->hints) {
1103                        status_printf_ln(s, color,
1104                                         _("  (fix conflicts and run \"git commit\")"));
1105                        status_printf_ln(s, color,
1106                                         _("  (use \"git merge --abort\" to abort the merge)"));
1107                }
1108        } else {
1109                status_printf_ln(s, color,
1110                        _("All conflicts fixed but you are still merging."));
1111                if (s->hints)
1112                        status_printf_ln(s, color,
1113                                _("  (use \"git commit\" to conclude merge)"));
1114        }
1115        wt_longstatus_print_trailer(s);
1116}
1117
1118static void show_am_in_progress(struct wt_status *s,
1119                                const char *color)
1120{
1121        status_printf_ln(s, color,
1122                _("You are in the middle of an am session."));
1123        if (s->state.am_empty_patch)
1124                status_printf_ln(s, color,
1125                        _("The current patch is empty."));
1126        if (s->hints) {
1127                if (!s->state.am_empty_patch)
1128                        status_printf_ln(s, color,
1129                                _("  (fix conflicts and then run \"git am --continue\")"));
1130                status_printf_ln(s, color,
1131                        _("  (use \"git am --skip\" to skip this patch)"));
1132                status_printf_ln(s, color,
1133                        _("  (use \"git am --abort\" to restore the original branch)"));
1134        }
1135        wt_longstatus_print_trailer(s);
1136}
1137
1138static char *read_line_from_git_path(const char *filename)
1139{
1140        struct strbuf buf = STRBUF_INIT;
1141        FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
1142
1143        if (!fp) {
1144                strbuf_release(&buf);
1145                return NULL;
1146        }
1147        strbuf_getline_lf(&buf, fp);
1148        if (!fclose(fp)) {
1149                return strbuf_detach(&buf, NULL);
1150        } else {
1151                strbuf_release(&buf);
1152                return NULL;
1153        }
1154}
1155
1156static int split_commit_in_progress(struct wt_status *s)
1157{
1158        int split_in_progress = 0;
1159        char *head, *orig_head, *rebase_amend, *rebase_orig_head;
1160
1161        if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1162            !s->branch || strcmp(s->branch, "HEAD"))
1163                return 0;
1164
1165        head = read_line_from_git_path("HEAD");
1166        orig_head = read_line_from_git_path("ORIG_HEAD");
1167        rebase_amend = read_line_from_git_path("rebase-merge/amend");
1168        rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1169
1170        if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
1171                ; /* fall through, no split in progress */
1172        else if (!strcmp(rebase_amend, rebase_orig_head))
1173                split_in_progress = !!strcmp(head, rebase_amend);
1174        else if (strcmp(orig_head, rebase_orig_head))
1175                split_in_progress = 1;
1176
1177        free(head);
1178        free(orig_head);
1179        free(rebase_amend);
1180        free(rebase_orig_head);
1181
1182        return split_in_progress;
1183}
1184
1185/*
1186 * Turn
1187 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1188 * into
1189 * "pick d6a2f03 some message"
1190 *
1191 * The function assumes that the line does not contain useless spaces
1192 * before or after the command.
1193 */
1194static void abbrev_sha1_in_line(struct strbuf *line)
1195{
1196        struct strbuf **split;
1197        int i;
1198
1199        if (starts_with(line->buf, "exec ") ||
1200            starts_with(line->buf, "x "))
1201                return;
1202
1203        split = strbuf_split_max(line, ' ', 3);
1204        if (split[0] && split[1]) {
1205                struct object_id oid;
1206
1207                /*
1208                 * strbuf_split_max left a space. Trim it and re-add
1209                 * it after abbreviation.
1210                 */
1211                strbuf_trim(split[1]);
1212                if (!get_oid(split[1]->buf, &oid)) {
1213                        strbuf_reset(split[1]);
1214                        strbuf_add_unique_abbrev(split[1], &oid,
1215                                                 DEFAULT_ABBREV);
1216                        strbuf_addch(split[1], ' ');
1217                        strbuf_reset(line);
1218                        for (i = 0; split[i]; i++)
1219                                strbuf_addbuf(line, split[i]);
1220                }
1221        }
1222        strbuf_list_free(split);
1223}
1224
1225static int read_rebase_todolist(const char *fname, struct string_list *lines)
1226{
1227        struct strbuf line = STRBUF_INIT;
1228        FILE *f = fopen(git_path("%s", fname), "r");
1229
1230        if (!f) {
1231                if (errno == ENOENT)
1232                        return -1;
1233                die_errno("Could not open file %s for reading",
1234                          git_path("%s", fname));
1235        }
1236        while (!strbuf_getline_lf(&line, f)) {
1237                if (line.len && line.buf[0] == comment_line_char)
1238                        continue;
1239                strbuf_trim(&line);
1240                if (!line.len)
1241                        continue;
1242                abbrev_sha1_in_line(&line);
1243                string_list_append(lines, line.buf);
1244        }
1245        fclose(f);
1246        strbuf_release(&line);
1247        return 0;
1248}
1249
1250static void show_rebase_information(struct wt_status *s,
1251                                    const char *color)
1252{
1253        if (s->state.rebase_interactive_in_progress) {
1254                int i;
1255                int nr_lines_to_show = 2;
1256
1257                struct string_list have_done = STRING_LIST_INIT_DUP;
1258                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1259
1260                read_rebase_todolist("rebase-merge/done", &have_done);
1261                if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1262                                         &yet_to_do))
1263                        status_printf_ln(s, color,
1264                                _("git-rebase-todo is missing."));
1265                if (have_done.nr == 0)
1266                        status_printf_ln(s, color, _("No commands done."));
1267                else {
1268                        status_printf_ln(s, color,
1269                                Q_("Last command done (%d command done):",
1270                                        "Last commands done (%d commands done):",
1271                                        have_done.nr),
1272                                have_done.nr);
1273                        for (i = (have_done.nr > nr_lines_to_show)
1274                                ? have_done.nr - nr_lines_to_show : 0;
1275                                i < have_done.nr;
1276                                i++)
1277                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1278                        if (have_done.nr > nr_lines_to_show && s->hints)
1279                                status_printf_ln(s, color,
1280                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1281                }
1282
1283                if (yet_to_do.nr == 0)
1284                        status_printf_ln(s, color,
1285                                         _("No commands remaining."));
1286                else {
1287                        status_printf_ln(s, color,
1288                                Q_("Next command to do (%d remaining command):",
1289                                        "Next commands to do (%d remaining commands):",
1290                                        yet_to_do.nr),
1291                                yet_to_do.nr);
1292                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1293                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1294                        if (s->hints)
1295                                status_printf_ln(s, color,
1296                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1297                }
1298                string_list_clear(&yet_to_do, 0);
1299                string_list_clear(&have_done, 0);
1300        }
1301}
1302
1303static void print_rebase_state(struct wt_status *s,
1304                               const char *color)
1305{
1306        if (s->state.branch)
1307                status_printf_ln(s, color,
1308                                 _("You are currently rebasing branch '%s' on '%s'."),
1309                                 s->state.branch,
1310                                 s->state.onto);
1311        else
1312                status_printf_ln(s, color,
1313                                 _("You are currently rebasing."));
1314}
1315
1316static void show_rebase_in_progress(struct wt_status *s,
1317                                    const char *color)
1318{
1319        struct stat st;
1320
1321        show_rebase_information(s, color);
1322        if (has_unmerged(s)) {
1323                print_rebase_state(s, color);
1324                if (s->hints) {
1325                        status_printf_ln(s, color,
1326                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1327                        status_printf_ln(s, color,
1328                                _("  (use \"git rebase --skip\" to skip this patch)"));
1329                        status_printf_ln(s, color,
1330                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1331                }
1332        } else if (s->state.rebase_in_progress ||
1333                   !stat(git_path_merge_msg(s->repo), &st)) {
1334                print_rebase_state(s, color);
1335                if (s->hints)
1336                        status_printf_ln(s, color,
1337                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1338        } else if (split_commit_in_progress(s)) {
1339                if (s->state.branch)
1340                        status_printf_ln(s, color,
1341                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1342                                         s->state.branch,
1343                                         s->state.onto);
1344                else
1345                        status_printf_ln(s, color,
1346                                         _("You are currently splitting a commit during a rebase."));
1347                if (s->hints)
1348                        status_printf_ln(s, color,
1349                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1350        } else {
1351                if (s->state.branch)
1352                        status_printf_ln(s, color,
1353                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1354                                         s->state.branch,
1355                                         s->state.onto);
1356                else
1357                        status_printf_ln(s, color,
1358                                         _("You are currently editing a commit during a rebase."));
1359                if (s->hints && !s->amend) {
1360                        status_printf_ln(s, color,
1361                                _("  (use \"git commit --amend\" to amend the current commit)"));
1362                        status_printf_ln(s, color,
1363                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1364                }
1365        }
1366        wt_longstatus_print_trailer(s);
1367}
1368
1369static void show_cherry_pick_in_progress(struct wt_status *s,
1370                                         const char *color)
1371{
1372        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1373                        find_unique_abbrev(&s->state.cherry_pick_head_oid, DEFAULT_ABBREV));
1374        if (s->hints) {
1375                if (has_unmerged(s))
1376                        status_printf_ln(s, color,
1377                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1378                else
1379                        status_printf_ln(s, color,
1380                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1381                status_printf_ln(s, color,
1382                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1383        }
1384        wt_longstatus_print_trailer(s);
1385}
1386
1387static void show_revert_in_progress(struct wt_status *s,
1388                                    const char *color)
1389{
1390        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1391                         find_unique_abbrev(&s->state.revert_head_oid, DEFAULT_ABBREV));
1392        if (s->hints) {
1393                if (has_unmerged(s))
1394                        status_printf_ln(s, color,
1395                                _("  (fix conflicts and run \"git revert --continue\")"));
1396                else
1397                        status_printf_ln(s, color,
1398                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1399                status_printf_ln(s, color,
1400                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1401        }
1402        wt_longstatus_print_trailer(s);
1403}
1404
1405static void show_bisect_in_progress(struct wt_status *s,
1406                                    const char *color)
1407{
1408        if (s->state.branch)
1409                status_printf_ln(s, color,
1410                                 _("You are currently bisecting, started from branch '%s'."),
1411                                 s->state.branch);
1412        else
1413                status_printf_ln(s, color,
1414                                 _("You are currently bisecting."));
1415        if (s->hints)
1416                status_printf_ln(s, color,
1417                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1418        wt_longstatus_print_trailer(s);
1419}
1420
1421/*
1422 * Extract branch information from rebase/bisect
1423 */
1424static char *get_branch(const struct worktree *wt, const char *path)
1425{
1426        struct strbuf sb = STRBUF_INIT;
1427        struct object_id oid;
1428        const char *branch_name;
1429
1430        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1431                goto got_nothing;
1432
1433        while (sb.len && sb.buf[sb.len - 1] == '\n')
1434                strbuf_setlen(&sb, sb.len - 1);
1435        if (!sb.len)
1436                goto got_nothing;
1437        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1438                strbuf_remove(&sb, 0, branch_name - sb.buf);
1439        else if (starts_with(sb.buf, "refs/"))
1440                ;
1441        else if (!get_oid_hex(sb.buf, &oid)) {
1442                strbuf_reset(&sb);
1443                strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1444        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1445                goto got_nothing;
1446        else                    /* bisect */
1447                ;
1448        return strbuf_detach(&sb, NULL);
1449
1450got_nothing:
1451        strbuf_release(&sb);
1452        return NULL;
1453}
1454
1455struct grab_1st_switch_cbdata {
1456        struct strbuf buf;
1457        struct object_id noid;
1458};
1459
1460static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1461                           const char *email, timestamp_t timestamp, int tz,
1462                           const char *message, void *cb_data)
1463{
1464        struct grab_1st_switch_cbdata *cb = cb_data;
1465        const char *target = NULL, *end;
1466
1467        if (!skip_prefix(message, "checkout: moving from ", &message))
1468                return 0;
1469        target = strstr(message, " to ");
1470        if (!target)
1471                return 0;
1472        target += strlen(" to ");
1473        strbuf_reset(&cb->buf);
1474        oidcpy(&cb->noid, noid);
1475        end = strchrnul(target, '\n');
1476        strbuf_add(&cb->buf, target, end - target);
1477        if (!strcmp(cb->buf.buf, "HEAD")) {
1478                /* HEAD is relative. Resolve it to the right reflog entry. */
1479                strbuf_reset(&cb->buf);
1480                strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1481        }
1482        return 1;
1483}
1484
1485static void wt_status_get_detached_from(struct repository *r,
1486                                        struct wt_status_state *state)
1487{
1488        struct grab_1st_switch_cbdata cb;
1489        struct commit *commit;
1490        struct object_id oid;
1491        char *ref = NULL;
1492
1493        strbuf_init(&cb.buf, 0);
1494        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1495                strbuf_release(&cb.buf);
1496                return;
1497        }
1498
1499        if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
1500            /* sha1 is a commit? match without further lookup */
1501            (oideq(&cb.noid, &oid) ||
1502             /* perhaps sha1 is a tag, try to dereference to a commit */
1503             ((commit = lookup_commit_reference_gently(r, &oid, 1)) != NULL &&
1504              oideq(&cb.noid, &commit->object.oid)))) {
1505                const char *from = ref;
1506                if (!skip_prefix(from, "refs/tags/", &from))
1507                        skip_prefix(from, "refs/remotes/", &from);
1508                state->detached_from = xstrdup(from);
1509        } else
1510                state->detached_from =
1511                        xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
1512        oidcpy(&state->detached_oid, &cb.noid);
1513        state->detached_at = !get_oid("HEAD", &oid) &&
1514                             oideq(&oid, &state->detached_oid);
1515
1516        free(ref);
1517        strbuf_release(&cb.buf);
1518}
1519
1520int wt_status_check_rebase(const struct worktree *wt,
1521                           struct wt_status_state *state)
1522{
1523        struct stat st;
1524
1525        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1526                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1527                        state->am_in_progress = 1;
1528                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1529                                state->am_empty_patch = 1;
1530                } else {
1531                        state->rebase_in_progress = 1;
1532                        state->branch = get_branch(wt, "rebase-apply/head-name");
1533                        state->onto = get_branch(wt, "rebase-apply/onto");
1534                }
1535        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1536                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1537                        state->rebase_interactive_in_progress = 1;
1538                else
1539                        state->rebase_in_progress = 1;
1540                state->branch = get_branch(wt, "rebase-merge/head-name");
1541                state->onto = get_branch(wt, "rebase-merge/onto");
1542        } else
1543                return 0;
1544        return 1;
1545}
1546
1547int wt_status_check_bisect(const struct worktree *wt,
1548                           struct wt_status_state *state)
1549{
1550        struct stat st;
1551
1552        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1553                state->bisect_in_progress = 1;
1554                state->branch = get_branch(wt, "BISECT_START");
1555                return 1;
1556        }
1557        return 0;
1558}
1559
1560void wt_status_get_state(struct repository *r,
1561                         struct wt_status_state *state,
1562                         int get_detached_from)
1563{
1564        struct stat st;
1565        struct object_id oid;
1566
1567        if (!stat(git_path_merge_head(r), &st)) {
1568                wt_status_check_rebase(NULL, state);
1569                state->merge_in_progress = 1;
1570        } else if (wt_status_check_rebase(NULL, state)) {
1571                ;               /* all set */
1572        } else if (!stat(git_path_cherry_pick_head(r), &st) &&
1573                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
1574                state->cherry_pick_in_progress = 1;
1575                oidcpy(&state->cherry_pick_head_oid, &oid);
1576        }
1577        wt_status_check_bisect(NULL, state);
1578        if (!stat(git_path_revert_head(r), &st) &&
1579            !get_oid("REVERT_HEAD", &oid)) {
1580                state->revert_in_progress = 1;
1581                oidcpy(&state->revert_head_oid, &oid);
1582        }
1583
1584        if (get_detached_from)
1585                wt_status_get_detached_from(r, state);
1586}
1587
1588static void wt_longstatus_print_state(struct wt_status *s)
1589{
1590        const char *state_color = color(WT_STATUS_HEADER, s);
1591        struct wt_status_state *state = &s->state;
1592
1593        if (state->merge_in_progress) {
1594                if (state->rebase_interactive_in_progress) {
1595                        show_rebase_information(s, state_color);
1596                        fputs("\n", s->fp);
1597                }
1598                show_merge_in_progress(s, state_color);
1599        } else if (state->am_in_progress)
1600                show_am_in_progress(s, state_color);
1601        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1602                show_rebase_in_progress(s, state_color);
1603        else if (state->cherry_pick_in_progress)
1604                show_cherry_pick_in_progress(s, state_color);
1605        else if (state->revert_in_progress)
1606                show_revert_in_progress(s, state_color);
1607        if (state->bisect_in_progress)
1608                show_bisect_in_progress(s, state_color);
1609}
1610
1611static void wt_longstatus_print(struct wt_status *s)
1612{
1613        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1614        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1615
1616        if (s->branch) {
1617                const char *on_what = _("On branch ");
1618                const char *branch_name = s->branch;
1619                if (!strcmp(branch_name, "HEAD")) {
1620                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1621                        if (s->state.rebase_in_progress ||
1622                            s->state.rebase_interactive_in_progress) {
1623                                if (s->state.rebase_interactive_in_progress)
1624                                        on_what = _("interactive rebase in progress; onto ");
1625                                else
1626                                        on_what = _("rebase in progress; onto ");
1627                                branch_name = s->state.onto;
1628                        } else if (s->state.detached_from) {
1629                                branch_name = s->state.detached_from;
1630                                if (s->state.detached_at)
1631                                        on_what = _("HEAD detached at ");
1632                                else
1633                                        on_what = _("HEAD detached from ");
1634                        } else {
1635                                branch_name = "";
1636                                on_what = _("Not currently on any branch.");
1637                        }
1638                } else
1639                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1640                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1641                status_printf_more(s, branch_status_color, "%s", on_what);
1642                status_printf_more(s, branch_color, "%s\n", branch_name);
1643                if (!s->is_initial)
1644                        wt_longstatus_print_tracking(s);
1645        }
1646
1647        wt_longstatus_print_state(s);
1648
1649        if (s->is_initial) {
1650                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1651                status_printf_ln(s, color(WT_STATUS_HEADER, s),
1652                                 s->commit_template
1653                                 ? _("Initial commit")
1654                                 : _("No commits yet"));
1655                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1656        }
1657
1658        wt_longstatus_print_updated(s);
1659        wt_longstatus_print_unmerged(s);
1660        wt_longstatus_print_changed(s);
1661        if (s->submodule_summary &&
1662            (!s->ignore_submodule_arg ||
1663             strcmp(s->ignore_submodule_arg, "all"))) {
1664                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1665                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1666        }
1667        if (s->show_untracked_files) {
1668                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1669                if (s->show_ignored_mode)
1670                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1671                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1672                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1673                        status_printf_ln(s, GIT_COLOR_NORMAL,
1674                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1675                                           "may speed it up, but you have to be careful not to forget to add\n"
1676                                           "new files yourself (see 'git help status')."),
1677                                         s->untracked_in_ms / 1000.0);
1678                }
1679        } else if (s->committable)
1680                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1681                        s->hints
1682                        ? _(" (use -u option to show untracked files)") : "");
1683
1684        if (s->verbose)
1685                wt_longstatus_print_verbose(s);
1686        if (!s->committable) {
1687                if (s->amend)
1688                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1689                else if (s->nowarn)
1690                        ; /* nothing */
1691                else if (s->workdir_dirty) {
1692                        if (s->hints)
1693                                printf(_("no changes added to commit "
1694                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1695                        else
1696                                printf(_("no changes added to commit\n"));
1697                } else if (s->untracked.nr) {
1698                        if (s->hints)
1699                                printf(_("nothing added to commit but untracked files "
1700                                         "present (use \"git add\" to track)\n"));
1701                        else
1702                                printf(_("nothing added to commit but untracked files present\n"));
1703                } else if (s->is_initial) {
1704                        if (s->hints)
1705                                printf(_("nothing to commit (create/copy files "
1706                                         "and use \"git add\" to track)\n"));
1707                        else
1708                                printf(_("nothing to commit\n"));
1709                } else if (!s->show_untracked_files) {
1710                        if (s->hints)
1711                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1712                        else
1713                                printf(_("nothing to commit\n"));
1714                } else
1715                        printf(_("nothing to commit, working tree clean\n"));
1716        }
1717        if(s->show_stash)
1718                wt_longstatus_print_stash_summary(s);
1719}
1720
1721static void wt_shortstatus_unmerged(struct string_list_item *it,
1722                           struct wt_status *s)
1723{
1724        struct wt_status_change_data *d = it->util;
1725        const char *how = "??";
1726
1727        switch (d->stagemask) {
1728        case 1: how = "DD"; break; /* both deleted */
1729        case 2: how = "AU"; break; /* added by us */
1730        case 3: how = "UD"; break; /* deleted by them */
1731        case 4: how = "UA"; break; /* added by them */
1732        case 5: how = "DU"; break; /* deleted by us */
1733        case 6: how = "AA"; break; /* both added */
1734        case 7: how = "UU"; break; /* both modified */
1735        }
1736        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1737        if (s->null_termination) {
1738                fprintf(stdout, " %s%c", it->string, 0);
1739        } else {
1740                struct strbuf onebuf = STRBUF_INIT;
1741                const char *one;
1742                one = quote_path(it->string, s->prefix, &onebuf);
1743                printf(" %s\n", one);
1744                strbuf_release(&onebuf);
1745        }
1746}
1747
1748static void wt_shortstatus_status(struct string_list_item *it,
1749                         struct wt_status *s)
1750{
1751        struct wt_status_change_data *d = it->util;
1752
1753        if (d->index_status)
1754                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1755        else
1756                putchar(' ');
1757        if (d->worktree_status)
1758                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1759        else
1760                putchar(' ');
1761        putchar(' ');
1762        if (s->null_termination) {
1763                fprintf(stdout, "%s%c", it->string, 0);
1764                if (d->rename_source)
1765                        fprintf(stdout, "%s%c", d->rename_source, 0);
1766        } else {
1767                struct strbuf onebuf = STRBUF_INIT;
1768                const char *one;
1769
1770                if (d->rename_source) {
1771                        one = quote_path(d->rename_source, s->prefix, &onebuf);
1772                        if (*one != '"' && strchr(one, ' ') != NULL) {
1773                                putchar('"');
1774                                strbuf_addch(&onebuf, '"');
1775                                one = onebuf.buf;
1776                        }
1777                        printf("%s -> ", one);
1778                        strbuf_release(&onebuf);
1779                }
1780                one = quote_path(it->string, s->prefix, &onebuf);
1781                if (*one != '"' && strchr(one, ' ') != NULL) {
1782                        putchar('"');
1783                        strbuf_addch(&onebuf, '"');
1784                        one = onebuf.buf;
1785                }
1786                printf("%s\n", one);
1787                strbuf_release(&onebuf);
1788        }
1789}
1790
1791static void wt_shortstatus_other(struct string_list_item *it,
1792                                 struct wt_status *s, const char *sign)
1793{
1794        if (s->null_termination) {
1795                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1796        } else {
1797                struct strbuf onebuf = STRBUF_INIT;
1798                const char *one;
1799                one = quote_path(it->string, s->prefix, &onebuf);
1800                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1801                printf(" %s\n", one);
1802                strbuf_release(&onebuf);
1803        }
1804}
1805
1806static void wt_shortstatus_print_tracking(struct wt_status *s)
1807{
1808        struct branch *branch;
1809        const char *header_color = color(WT_STATUS_HEADER, s);
1810        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1811        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1812
1813        const char *base;
1814        char *short_base;
1815        const char *branch_name;
1816        int num_ours, num_theirs, sti;
1817        int upstream_is_gone = 0;
1818
1819        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1820
1821        if (!s->branch)
1822                return;
1823        branch_name = s->branch;
1824
1825#define LABEL(string) (s->no_gettext ? (string) : _(string))
1826
1827        if (s->is_initial)
1828                color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
1829
1830        if (!strcmp(s->branch, "HEAD")) {
1831                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1832                              LABEL(N_("HEAD (no branch)")));
1833                goto conclude;
1834        }
1835
1836        skip_prefix(branch_name, "refs/heads/", &branch_name);
1837
1838        branch = branch_get(branch_name);
1839
1840        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1841
1842        sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
1843                                 s->ahead_behind_flags);
1844        if (sti < 0) {
1845                if (!base)
1846                        goto conclude;
1847
1848                upstream_is_gone = 1;
1849        }
1850
1851        short_base = shorten_unambiguous_ref(base, 0);
1852        color_fprintf(s->fp, header_color, "...");
1853        color_fprintf(s->fp, branch_color_remote, "%s", short_base);
1854        free(short_base);
1855
1856        if (!upstream_is_gone && !sti)
1857                goto conclude;
1858
1859        color_fprintf(s->fp, header_color, " [");
1860        if (upstream_is_gone) {
1861                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1862        } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
1863                color_fprintf(s->fp, header_color, LABEL(N_("different")));
1864        } else if (!num_ours) {
1865                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1866                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1867        } else if (!num_theirs) {
1868                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1869                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1870        } else {
1871                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1872                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1873                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1874                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1875        }
1876
1877        color_fprintf(s->fp, header_color, "]");
1878 conclude:
1879        fputc(s->null_termination ? '\0' : '\n', s->fp);
1880}
1881
1882static void wt_shortstatus_print(struct wt_status *s)
1883{
1884        struct string_list_item *it;
1885
1886        if (s->show_branch)
1887                wt_shortstatus_print_tracking(s);
1888
1889        for_each_string_list_item(it, &s->change) {
1890                struct wt_status_change_data *d = it->util;
1891
1892                if (d->stagemask)
1893                        wt_shortstatus_unmerged(it, s);
1894                else
1895                        wt_shortstatus_status(it, s);
1896        }
1897        for_each_string_list_item(it, &s->untracked)
1898                wt_shortstatus_other(it, s, "??");
1899
1900        for_each_string_list_item(it, &s->ignored)
1901                wt_shortstatus_other(it, s, "!!");
1902}
1903
1904static void wt_porcelain_print(struct wt_status *s)
1905{
1906        s->use_color = 0;
1907        s->relative_paths = 0;
1908        s->prefix = NULL;
1909        s->no_gettext = 1;
1910        wt_shortstatus_print(s);
1911}
1912
1913/*
1914 * Print branch information for porcelain v2 output.  These lines
1915 * are printed when the '--branch' parameter is given.
1916 *
1917 *    # branch.oid <commit><eol>
1918 *    # branch.head <head><eol>
1919 *   [# branch.upstream <upstream><eol>
1920 *   [# branch.ab +<ahead> -<behind><eol>]]
1921 *
1922 *      <commit> ::= the current commit hash or the the literal
1923 *                   "(initial)" to indicate an initialized repo
1924 *                   with no commits.
1925 *
1926 *        <head> ::= <branch_name> the current branch name or
1927 *                   "(detached)" literal when detached head or
1928 *                   "(unknown)" when something is wrong.
1929 *
1930 *    <upstream> ::= the upstream branch name, when set.
1931 *
1932 *       <ahead> ::= integer ahead value or '?'.
1933 *
1934 *      <behind> ::= integer behind value or '?'.
1935 *
1936 * The end-of-line is defined by the -z flag.
1937 *
1938 *                 <eol> ::= NUL when -z,
1939 *                           LF when NOT -z.
1940 *
1941 * When an upstream is set and present, the 'branch.ab' line will
1942 * be printed with the ahead/behind counts for the branch and the
1943 * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
1944 * are different, '?' will be substituted for the actual count.
1945 */
1946static void wt_porcelain_v2_print_tracking(struct wt_status *s)
1947{
1948        struct branch *branch;
1949        const char *base;
1950        const char *branch_name;
1951        int ab_info, nr_ahead, nr_behind;
1952        char eol = s->null_termination ? '\0' : '\n';
1953
1954        fprintf(s->fp, "# branch.oid %s%c",
1955                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
1956                        eol);
1957
1958        if (!s->branch)
1959                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
1960        else {
1961                if (!strcmp(s->branch, "HEAD")) {
1962                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
1963
1964                        if (s->state.rebase_in_progress ||
1965                            s->state.rebase_interactive_in_progress)
1966                                branch_name = s->state.onto;
1967                        else if (s->state.detached_from)
1968                                branch_name = s->state.detached_from;
1969                        else
1970                                branch_name = "";
1971                } else {
1972                        branch_name = NULL;
1973                        skip_prefix(s->branch, "refs/heads/", &branch_name);
1974
1975                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
1976                }
1977
1978                /* Lookup stats on the upstream tracking branch, if set. */
1979                branch = branch_get(branch_name);
1980                base = NULL;
1981                ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
1982                                             &base, s->ahead_behind_flags);
1983                if (base) {
1984                        base = shorten_unambiguous_ref(base, 0);
1985                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
1986                        free((char *)base);
1987
1988                        if (ab_info > 0) {
1989                                /* different */
1990                                if (nr_ahead || nr_behind)
1991                                        fprintf(s->fp, "# branch.ab +%d -%d%c",
1992                                                nr_ahead, nr_behind, eol);
1993                                else
1994                                        fprintf(s->fp, "# branch.ab +? -?%c",
1995                                                eol);
1996                        } else if (!ab_info) {
1997                                /* same */
1998                                fprintf(s->fp, "# branch.ab +0 -0%c", eol);
1999                        }
2000                }
2001        }
2002}
2003
2004/*
2005 * Convert various submodule status values into a
2006 * fixed-length string of characters in the buffer provided.
2007 */
2008static void wt_porcelain_v2_submodule_state(
2009        struct wt_status_change_data *d,
2010        char sub[5])
2011{
2012        if (S_ISGITLINK(d->mode_head) ||
2013                S_ISGITLINK(d->mode_index) ||
2014                S_ISGITLINK(d->mode_worktree)) {
2015                sub[0] = 'S';
2016                sub[1] = d->new_submodule_commits ? 'C' : '.';
2017                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2018                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2019        } else {
2020                sub[0] = 'N';
2021                sub[1] = '.';
2022                sub[2] = '.';
2023                sub[3] = '.';
2024        }
2025        sub[4] = 0;
2026}
2027
2028/*
2029 * Fix-up changed entries before we print them.
2030 */
2031static void wt_porcelain_v2_fix_up_changed(
2032        struct string_list_item *it,
2033        struct wt_status *s)
2034{
2035        struct wt_status_change_data *d = it->util;
2036
2037        if (!d->index_status) {
2038                /*
2039                 * This entry is unchanged in the index (relative to the head).
2040                 * Therefore, the collect_updated_cb was never called for this
2041                 * entry (during the head-vs-index scan) and so the head column
2042                 * fields were never set.
2043                 *
2044                 * We must have data for the index column (from the
2045                 * index-vs-worktree scan (otherwise, this entry should not be
2046                 * in the list of changes)).
2047                 *
2048                 * Copy index column fields to the head column, so that our
2049                 * output looks complete.
2050                 */
2051                assert(d->mode_head == 0);
2052                d->mode_head = d->mode_index;
2053                oidcpy(&d->oid_head, &d->oid_index);
2054        }
2055
2056        if (!d->worktree_status) {
2057                /*
2058                 * This entry is unchanged in the worktree (relative to the index).
2059                 * Therefore, the collect_changed_cb was never called for this entry
2060                 * (during the index-vs-worktree scan) and so the worktree column
2061                 * fields were never set.
2062                 *
2063                 * We must have data for the index column (from the head-vs-index
2064                 * scan).
2065                 *
2066                 * Copy the index column fields to the worktree column so that
2067                 * our output looks complete.
2068                 *
2069                 * Note that we only have a mode field in the worktree column
2070                 * because the scan code tries really hard to not have to compute it.
2071                 */
2072                assert(d->mode_worktree == 0);
2073                d->mode_worktree = d->mode_index;
2074        }
2075}
2076
2077/*
2078 * Print porcelain v2 info for tracked entries with changes.
2079 */
2080static void wt_porcelain_v2_print_changed_entry(
2081        struct string_list_item *it,
2082        struct wt_status *s)
2083{
2084        struct wt_status_change_data *d = it->util;
2085        struct strbuf buf = STRBUF_INIT;
2086        struct strbuf buf_from = STRBUF_INIT;
2087        const char *path = NULL;
2088        const char *path_from = NULL;
2089        char key[3];
2090        char submodule_token[5];
2091        char sep_char, eol_char;
2092
2093        wt_porcelain_v2_fix_up_changed(it, s);
2094        wt_porcelain_v2_submodule_state(d, submodule_token);
2095
2096        key[0] = d->index_status ? d->index_status : '.';
2097        key[1] = d->worktree_status ? d->worktree_status : '.';
2098        key[2] = 0;
2099
2100        if (s->null_termination) {
2101                /*
2102                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2103                 * A single NUL character separates them.
2104                 */
2105                sep_char = '\0';
2106                eol_char = '\0';
2107                path = it->string;
2108                path_from = d->rename_source;
2109        } else {
2110                /*
2111                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2112                 * The source path is only present when necessary.
2113                 * A single TAB separates them (because paths can contain spaces
2114                 * which are not escaped and C-quoting does escape TAB characters).
2115                 */
2116                sep_char = '\t';
2117                eol_char = '\n';
2118                path = quote_path(it->string, s->prefix, &buf);
2119                if (d->rename_source)
2120                        path_from = quote_path(d->rename_source, s->prefix, &buf_from);
2121        }
2122
2123        if (path_from)
2124                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2125                                key, submodule_token,
2126                                d->mode_head, d->mode_index, d->mode_worktree,
2127                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2128                                d->rename_status, d->rename_score,
2129                                path, sep_char, path_from, eol_char);
2130        else
2131                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2132                                key, submodule_token,
2133                                d->mode_head, d->mode_index, d->mode_worktree,
2134                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2135                                path, eol_char);
2136
2137        strbuf_release(&buf);
2138        strbuf_release(&buf_from);
2139}
2140
2141/*
2142 * Print porcelain v2 status info for unmerged entries.
2143 */
2144static void wt_porcelain_v2_print_unmerged_entry(
2145        struct string_list_item *it,
2146        struct wt_status *s)
2147{
2148        struct wt_status_change_data *d = it->util;
2149        struct index_state *istate = s->repo->index;
2150        const struct cache_entry *ce;
2151        struct strbuf buf_index = STRBUF_INIT;
2152        const char *path_index = NULL;
2153        int pos, stage, sum;
2154        struct {
2155                int mode;
2156                struct object_id oid;
2157        } stages[3];
2158        char *key;
2159        char submodule_token[5];
2160        char unmerged_prefix = 'u';
2161        char eol_char = s->null_termination ? '\0' : '\n';
2162
2163        wt_porcelain_v2_submodule_state(d, submodule_token);
2164
2165        switch (d->stagemask) {
2166        case 1: key = "DD"; break; /* both deleted */
2167        case 2: key = "AU"; break; /* added by us */
2168        case 3: key = "UD"; break; /* deleted by them */
2169        case 4: key = "UA"; break; /* added by them */
2170        case 5: key = "DU"; break; /* deleted by us */
2171        case 6: key = "AA"; break; /* both added */
2172        case 7: key = "UU"; break; /* both modified */
2173        default:
2174                BUG("unhandled unmerged status %x", d->stagemask);
2175        }
2176
2177        /*
2178         * Disregard d.aux.porcelain_v2 data that we accumulated
2179         * for the head and index columns during the scans and
2180         * replace with the actual stage data.
2181         *
2182         * Note that this is a last-one-wins for each the individual
2183         * stage [123] columns in the event of multiple cache entries
2184         * for same stage.
2185         */
2186        memset(stages, 0, sizeof(stages));
2187        sum = 0;
2188        pos = index_name_pos(istate, it->string, strlen(it->string));
2189        assert(pos < 0);
2190        pos = -pos-1;
2191        while (pos < istate->cache_nr) {
2192                ce = istate->cache[pos++];
2193                stage = ce_stage(ce);
2194                if (strcmp(ce->name, it->string) || !stage)
2195                        break;
2196                stages[stage - 1].mode = ce->ce_mode;
2197                oidcpy(&stages[stage - 1].oid, &ce->oid);
2198                sum |= (1 << (stage - 1));
2199        }
2200        if (sum != d->stagemask)
2201                BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2202
2203        if (s->null_termination)
2204                path_index = it->string;
2205        else
2206                path_index = quote_path(it->string, s->prefix, &buf_index);
2207
2208        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2209                        unmerged_prefix, key, submodule_token,
2210                        stages[0].mode, /* stage 1 */
2211                        stages[1].mode, /* stage 2 */
2212                        stages[2].mode, /* stage 3 */
2213                        d->mode_worktree,
2214                        oid_to_hex(&stages[0].oid), /* stage 1 */
2215                        oid_to_hex(&stages[1].oid), /* stage 2 */
2216                        oid_to_hex(&stages[2].oid), /* stage 3 */
2217                        path_index,
2218                        eol_char);
2219
2220        strbuf_release(&buf_index);
2221}
2222
2223/*
2224 * Print porcelain V2 status info for untracked and ignored entries.
2225 */
2226static void wt_porcelain_v2_print_other(
2227        struct string_list_item *it,
2228        struct wt_status *s,
2229        char prefix)
2230{
2231        struct strbuf buf = STRBUF_INIT;
2232        const char *path;
2233        char eol_char;
2234
2235        if (s->null_termination) {
2236                path = it->string;
2237                eol_char = '\0';
2238        } else {
2239                path = quote_path(it->string, s->prefix, &buf);
2240                eol_char = '\n';
2241        }
2242
2243        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2244
2245        strbuf_release(&buf);
2246}
2247
2248/*
2249 * Print porcelain V2 status.
2250 *
2251 * [<v2_branch>]
2252 * [<v2_changed_items>]*
2253 * [<v2_unmerged_items>]*
2254 * [<v2_untracked_items>]*
2255 * [<v2_ignored_items>]*
2256 *
2257 */
2258static void wt_porcelain_v2_print(struct wt_status *s)
2259{
2260        struct wt_status_change_data *d;
2261        struct string_list_item *it;
2262        int i;
2263
2264        if (s->show_branch)
2265                wt_porcelain_v2_print_tracking(s);
2266
2267        for (i = 0; i < s->change.nr; i++) {
2268                it = &(s->change.items[i]);
2269                d = it->util;
2270                if (!d->stagemask)
2271                        wt_porcelain_v2_print_changed_entry(it, s);
2272        }
2273
2274        for (i = 0; i < s->change.nr; i++) {
2275                it = &(s->change.items[i]);
2276                d = it->util;
2277                if (d->stagemask)
2278                        wt_porcelain_v2_print_unmerged_entry(it, s);
2279        }
2280
2281        for (i = 0; i < s->untracked.nr; i++) {
2282                it = &(s->untracked.items[i]);
2283                wt_porcelain_v2_print_other(it, s, '?');
2284        }
2285
2286        for (i = 0; i < s->ignored.nr; i++) {
2287                it = &(s->ignored.items[i]);
2288                wt_porcelain_v2_print_other(it, s, '!');
2289        }
2290}
2291
2292void wt_status_print(struct wt_status *s)
2293{
2294        switch (s->status_format) {
2295        case STATUS_FORMAT_SHORT:
2296                wt_shortstatus_print(s);
2297                break;
2298        case STATUS_FORMAT_PORCELAIN:
2299                wt_porcelain_print(s);
2300                break;
2301        case STATUS_FORMAT_PORCELAIN_V2:
2302                wt_porcelain_v2_print(s);
2303                break;
2304        case STATUS_FORMAT_UNSPECIFIED:
2305                BUG("finalize_deferred_config() should have been called");
2306                break;
2307        case STATUS_FORMAT_NONE:
2308        case STATUS_FORMAT_LONG:
2309                wt_longstatus_print(s);
2310                break;
2311        }
2312}
2313
2314/**
2315 * Returns 1 if there are unstaged changes, 0 otherwise.
2316 */
2317int has_unstaged_changes(struct repository *r, int ignore_submodules)
2318{
2319        struct rev_info rev_info;
2320        int result;
2321
2322        repo_init_revisions(r, &rev_info, NULL);
2323        if (ignore_submodules) {
2324                rev_info.diffopt.flags.ignore_submodules = 1;
2325                rev_info.diffopt.flags.override_submodule_config = 1;
2326        }
2327        rev_info.diffopt.flags.quick = 1;
2328        diff_setup_done(&rev_info.diffopt);
2329        result = run_diff_files(&rev_info, 0);
2330        return diff_result_code(&rev_info.diffopt, result);
2331}
2332
2333/**
2334 * Returns 1 if there are uncommitted changes, 0 otherwise.
2335 */
2336int has_uncommitted_changes(struct repository *r,
2337                            int ignore_submodules)
2338{
2339        struct rev_info rev_info;
2340        int result;
2341
2342        if (is_index_unborn(r->index))
2343                return 0;
2344
2345        repo_init_revisions(r, &rev_info, NULL);
2346        if (ignore_submodules)
2347                rev_info.diffopt.flags.ignore_submodules = 1;
2348        rev_info.diffopt.flags.quick = 1;
2349
2350        add_head_to_pending(&rev_info);
2351        if (!rev_info.pending.nr) {
2352                /*
2353                 * We have no head (or it's corrupt); use the empty tree,
2354                 * which will complain if the index is non-empty.
2355                 */
2356                struct tree *tree = lookup_tree(r, the_hash_algo->empty_tree);
2357                add_pending_object(&rev_info, &tree->object, "");
2358        }
2359
2360        diff_setup_done(&rev_info.diffopt);
2361        result = run_diff_index(&rev_info, 1);
2362        return diff_result_code(&rev_info.diffopt, result);
2363}
2364
2365/**
2366 * If the work tree has unstaged or uncommitted changes, dies with the
2367 * appropriate message.
2368 */
2369int require_clean_work_tree(struct repository *r,
2370                            const char *action,
2371                            const char *hint,
2372                            int ignore_submodules,
2373                            int gently)
2374{
2375        struct lock_file lock_file = LOCK_INIT;
2376        int err = 0, fd;
2377
2378        fd = repo_hold_locked_index(r, &lock_file, 0);
2379        refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
2380        if (0 <= fd)
2381                repo_update_index_if_able(r, &lock_file);
2382        rollback_lock_file(&lock_file);
2383
2384        if (has_unstaged_changes(r, ignore_submodules)) {
2385                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2386                error(_("cannot %s: You have unstaged changes."), _(action));
2387                err = 1;
2388        }
2389
2390        if (has_uncommitted_changes(r, ignore_submodules)) {
2391                if (err)
2392                        error(_("additionally, your index contains uncommitted changes."));
2393                else
2394                        error(_("cannot %s: Your index contains uncommitted changes."),
2395                              _(action));
2396                err = 1;
2397        }
2398
2399        if (err) {
2400                if (hint)
2401                        error("%s", hint);
2402                if (!gently)
2403                        exit(128);
2404        }
2405
2406        return err;
2407}