wt-status.con commit Merge branch 'ds/include-exclude' (9755f70)
   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#include "sequencer.h"
  21
  22#define AB_DELAY_WARNING_IN_MS (2 * 1000)
  23
  24static const char cut_line[] =
  25"------------------------ >8 ------------------------\n";
  26
  27static char default_wt_status_colors[][COLOR_MAXLEN] = {
  28        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  29        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  30        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  31        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  32        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  33        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  34        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  35        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  36        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  37};
  38
  39static const char *color(int slot, struct wt_status *s)
  40{
  41        const char *c = "";
  42        if (want_color(s->use_color))
  43                c = s->color_palette[slot];
  44        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  45                c = s->color_palette[WT_STATUS_HEADER];
  46        return c;
  47}
  48
  49static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  50                const char *fmt, va_list ap, const char *trail)
  51{
  52        struct strbuf sb = STRBUF_INIT;
  53        struct strbuf linebuf = STRBUF_INIT;
  54        const char *line, *eol;
  55
  56        strbuf_vaddf(&sb, fmt, ap);
  57        if (!sb.len) {
  58                if (s->display_comment_prefix) {
  59                        strbuf_addch(&sb, comment_line_char);
  60                        if (!trail)
  61                                strbuf_addch(&sb, ' ');
  62                }
  63                color_print_strbuf(s->fp, color, &sb);
  64                if (trail)
  65                        fprintf(s->fp, "%s", trail);
  66                strbuf_release(&sb);
  67                return;
  68        }
  69        for (line = sb.buf; *line; line = eol + 1) {
  70                eol = strchr(line, '\n');
  71
  72                strbuf_reset(&linebuf);
  73                if (at_bol && s->display_comment_prefix) {
  74                        strbuf_addch(&linebuf, comment_line_char);
  75                        if (*line != '\n' && *line != '\t')
  76                                strbuf_addch(&linebuf, ' ');
  77                }
  78                if (eol)
  79                        strbuf_add(&linebuf, line, eol - line);
  80                else
  81                        strbuf_addstr(&linebuf, line);
  82                color_print_strbuf(s->fp, color, &linebuf);
  83                if (eol)
  84                        fprintf(s->fp, "\n");
  85                else
  86                        break;
  87                at_bol = 1;
  88        }
  89        if (trail)
  90                fprintf(s->fp, "%s", trail);
  91        strbuf_release(&linebuf);
  92        strbuf_release(&sb);
  93}
  94
  95void status_printf_ln(struct wt_status *s, const char *color,
  96                        const char *fmt, ...)
  97{
  98        va_list ap;
  99
 100        va_start(ap, fmt);
 101        status_vprintf(s, 1, color, fmt, ap, "\n");
 102        va_end(ap);
 103}
 104
 105void status_printf(struct wt_status *s, const char *color,
 106                        const char *fmt, ...)
 107{
 108        va_list ap;
 109
 110        va_start(ap, fmt);
 111        status_vprintf(s, 1, color, fmt, ap, NULL);
 112        va_end(ap);
 113}
 114
 115static void status_printf_more(struct wt_status *s, const char *color,
 116                               const char *fmt, ...)
 117{
 118        va_list ap;
 119
 120        va_start(ap, fmt);
 121        status_vprintf(s, 0, color, fmt, ap, NULL);
 122        va_end(ap);
 123}
 124
 125void wt_status_prepare(struct repository *r, struct wt_status *s)
 126{
 127        memset(s, 0, sizeof(*s));
 128        s->repo = r;
 129        memcpy(s->color_palette, default_wt_status_colors,
 130               sizeof(default_wt_status_colors));
 131        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 132        s->use_color = -1;
 133        s->relative_paths = 1;
 134        s->branch = resolve_refdup("HEAD", 0, NULL, NULL);
 135        s->reference = "HEAD";
 136        s->fp = stdout;
 137        s->index_file = get_index_file();
 138        s->change.strdup_strings = 1;
 139        s->untracked.strdup_strings = 1;
 140        s->ignored.strdup_strings = 1;
 141        s->show_branch = -1;  /* unspecified */
 142        s->show_stash = 0;
 143        s->ahead_behind_flags = AHEAD_BEHIND_UNSPECIFIED;
 144        s->display_comment_prefix = 0;
 145        s->detect_rename = -1;
 146        s->rename_score = -1;
 147        s->rename_limit = -1;
 148}
 149
 150static void wt_longstatus_print_unmerged_header(struct wt_status *s)
 151{
 152        int i;
 153        int del_mod_conflict = 0;
 154        int both_deleted = 0;
 155        int not_deleted = 0;
 156        const char *c = color(WT_STATUS_HEADER, s);
 157
 158        status_printf_ln(s, c, _("Unmerged paths:"));
 159
 160        for (i = 0; i < s->change.nr; i++) {
 161                struct string_list_item *it = &(s->change.items[i]);
 162                struct wt_status_change_data *d = it->util;
 163
 164                switch (d->stagemask) {
 165                case 0:
 166                        break;
 167                case 1:
 168                        both_deleted = 1;
 169                        break;
 170                case 3:
 171                case 5:
 172                        del_mod_conflict = 1;
 173                        break;
 174                default:
 175                        not_deleted = 1;
 176                        break;
 177                }
 178        }
 179
 180        if (!s->hints)
 181                return;
 182        if (s->whence != FROM_COMMIT)
 183                ;
 184        else if (!s->is_initial) {
 185                if (!strcmp(s->reference, "HEAD"))
 186                        status_printf_ln(s, c,
 187                                         _("  (use \"git restore --staged <file>...\" to unstage)"));
 188                else
 189                        status_printf_ln(s, c,
 190                                         _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
 191                                         s->reference);
 192        } else
 193                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 194
 195        if (!both_deleted) {
 196                if (!del_mod_conflict)
 197                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 198                else
 199                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 200        } else if (!del_mod_conflict && !not_deleted) {
 201                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 202        } else {
 203                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 204        }
 205}
 206
 207static void wt_longstatus_print_cached_header(struct wt_status *s)
 208{
 209        const char *c = color(WT_STATUS_HEADER, s);
 210
 211        status_printf_ln(s, c, _("Changes to be committed:"));
 212        if (!s->hints)
 213                return;
 214        if (s->whence != FROM_COMMIT)
 215                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 216        else if (!s->is_initial) {
 217                if (!strcmp(s->reference, "HEAD"))
 218                        status_printf_ln(s, c
 219                                         , _("  (use \"git restore --staged <file>...\" to unstage)"));
 220                else
 221                        status_printf_ln(s, c,
 222                                         _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
 223                                         s->reference);
 224        } else
 225                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 226}
 227
 228static void wt_longstatus_print_dirty_header(struct wt_status *s,
 229                                             int has_deleted,
 230                                             int has_dirty_submodules)
 231{
 232        const char *c = color(WT_STATUS_HEADER, s);
 233
 234        status_printf_ln(s, c, _("Changes not staged for commit:"));
 235        if (!s->hints)
 236                return;
 237        if (!has_deleted)
 238                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 239        else
 240                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 241        status_printf_ln(s, c, _("  (use \"git restore <file>...\" to discard changes in working directory)"));
 242        if (has_dirty_submodules)
 243                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 244}
 245
 246static void wt_longstatus_print_other_header(struct wt_status *s,
 247                                             const char *what,
 248                                             const char *how)
 249{
 250        const char *c = color(WT_STATUS_HEADER, s);
 251        status_printf_ln(s, c, "%s:", what);
 252        if (!s->hints)
 253                return;
 254        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 255}
 256
 257static void wt_longstatus_print_trailer(struct wt_status *s)
 258{
 259        status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 260}
 261
 262#define quote_path quote_path_relative
 263
 264static const char *wt_status_unmerged_status_string(int stagemask)
 265{
 266        switch (stagemask) {
 267        case 1:
 268                return _("both deleted:");
 269        case 2:
 270                return _("added by us:");
 271        case 3:
 272                return _("deleted by them:");
 273        case 4:
 274                return _("added by them:");
 275        case 5:
 276                return _("deleted by us:");
 277        case 6:
 278                return _("both added:");
 279        case 7:
 280                return _("both modified:");
 281        default:
 282                BUG("unhandled unmerged status %x", stagemask);
 283        }
 284}
 285
 286static const char *wt_status_diff_status_string(int status)
 287{
 288        switch (status) {
 289        case DIFF_STATUS_ADDED:
 290                return _("new file:");
 291        case DIFF_STATUS_COPIED:
 292                return _("copied:");
 293        case DIFF_STATUS_DELETED:
 294                return _("deleted:");
 295        case DIFF_STATUS_MODIFIED:
 296                return _("modified:");
 297        case DIFF_STATUS_RENAMED:
 298                return _("renamed:");
 299        case DIFF_STATUS_TYPE_CHANGED:
 300                return _("typechange:");
 301        case DIFF_STATUS_UNKNOWN:
 302                return _("unknown:");
 303        case DIFF_STATUS_UNMERGED:
 304                return _("unmerged:");
 305        default:
 306                return NULL;
 307        }
 308}
 309
 310static int maxwidth(const char *(*label)(int), int minval, int maxval)
 311{
 312        int result = 0, i;
 313
 314        for (i = minval; i <= maxval; i++) {
 315                const char *s = label(i);
 316                int len = s ? utf8_strwidth(s) : 0;
 317                if (len > result)
 318                        result = len;
 319        }
 320        return result;
 321}
 322
 323static void wt_longstatus_print_unmerged_data(struct wt_status *s,
 324                                              struct string_list_item *it)
 325{
 326        const char *c = color(WT_STATUS_UNMERGED, s);
 327        struct wt_status_change_data *d = it->util;
 328        struct strbuf onebuf = STRBUF_INIT;
 329        static char *padding;
 330        static int label_width;
 331        const char *one, *how;
 332        int len;
 333
 334        if (!padding) {
 335                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 336                label_width += strlen(" ");
 337                padding = xmallocz(label_width);
 338                memset(padding, ' ', label_width);
 339        }
 340
 341        one = quote_path(it->string, s->prefix, &onebuf);
 342        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 343
 344        how = wt_status_unmerged_status_string(d->stagemask);
 345        len = label_width - utf8_strwidth(how);
 346        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 347        strbuf_release(&onebuf);
 348}
 349
 350static void wt_longstatus_print_change_data(struct wt_status *s,
 351                                            int change_type,
 352                                            struct string_list_item *it)
 353{
 354        struct wt_status_change_data *d = it->util;
 355        const char *c = color(change_type, s);
 356        int status;
 357        char *one_name;
 358        char *two_name;
 359        const char *one, *two;
 360        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 361        struct strbuf extra = STRBUF_INIT;
 362        static char *padding;
 363        static int label_width;
 364        const char *what;
 365        int len;
 366
 367        if (!padding) {
 368                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 369                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 370                label_width += strlen(" ");
 371                padding = xmallocz(label_width);
 372                memset(padding, ' ', label_width);
 373        }
 374
 375        one_name = two_name = it->string;
 376        switch (change_type) {
 377        case WT_STATUS_UPDATED:
 378                status = d->index_status;
 379                break;
 380        case WT_STATUS_CHANGED:
 381                if (d->new_submodule_commits || d->dirty_submodule) {
 382                        strbuf_addstr(&extra, " (");
 383                        if (d->new_submodule_commits)
 384                                strbuf_addstr(&extra, _("new commits, "));
 385                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 386                                strbuf_addstr(&extra, _("modified content, "));
 387                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 388                                strbuf_addstr(&extra, _("untracked content, "));
 389                        strbuf_setlen(&extra, extra.len - 2);
 390                        strbuf_addch(&extra, ')');
 391                }
 392                status = d->worktree_status;
 393                break;
 394        default:
 395                BUG("unhandled change_type %d in wt_longstatus_print_change_data",
 396                    change_type);
 397        }
 398
 399        /*
 400         * Only pick up the rename it's relevant. If the rename is for
 401         * the changed section and we're printing the updated section,
 402         * ignore it.
 403         */
 404        if (d->rename_status == status)
 405                one_name = d->rename_source;
 406
 407        one = quote_path(one_name, s->prefix, &onebuf);
 408        two = quote_path(two_name, s->prefix, &twobuf);
 409
 410        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 411        what = wt_status_diff_status_string(status);
 412        if (!what)
 413                BUG("unhandled diff status %c", status);
 414        len = label_width - utf8_strwidth(what);
 415        assert(len >= 0);
 416        if (one_name != two_name)
 417                status_printf_more(s, c, "%s%.*s%s -> %s",
 418                                   what, len, padding, one, two);
 419        else
 420                status_printf_more(s, c, "%s%.*s%s",
 421                                   what, len, padding, one);
 422        if (extra.len) {
 423                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 424                strbuf_release(&extra);
 425        }
 426        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 427        strbuf_release(&onebuf);
 428        strbuf_release(&twobuf);
 429}
 430
 431static char short_submodule_status(struct wt_status_change_data *d)
 432{
 433        if (d->new_submodule_commits)
 434                return 'M';
 435        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 436                return 'm';
 437        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 438                return '?';
 439        return d->worktree_status;
 440}
 441
 442static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 443                                         struct diff_options *options,
 444                                         void *data)
 445{
 446        struct wt_status *s = data;
 447        int i;
 448
 449        if (!q->nr)
 450                return;
 451        s->workdir_dirty = 1;
 452        for (i = 0; i < q->nr; i++) {
 453                struct diff_filepair *p;
 454                struct string_list_item *it;
 455                struct wt_status_change_data *d;
 456
 457                p = q->queue[i];
 458                it = string_list_insert(&s->change, p->two->path);
 459                d = it->util;
 460                if (!d) {
 461                        d = xcalloc(1, sizeof(*d));
 462                        it->util = d;
 463                }
 464                if (!d->worktree_status)
 465                        d->worktree_status = p->status;
 466                if (S_ISGITLINK(p->two->mode)) {
 467                        d->dirty_submodule = p->two->dirty_submodule;
 468                        d->new_submodule_commits = !oideq(&p->one->oid,
 469                                                          &p->two->oid);
 470                        if (s->status_format == STATUS_FORMAT_SHORT)
 471                                d->worktree_status = short_submodule_status(d);
 472                }
 473
 474                switch (p->status) {
 475                case DIFF_STATUS_ADDED:
 476                        d->mode_worktree = p->two->mode;
 477                        break;
 478
 479                case DIFF_STATUS_DELETED:
 480                        d->mode_index = p->one->mode;
 481                        oidcpy(&d->oid_index, &p->one->oid);
 482                        /* mode_worktree is zero for a delete. */
 483                        break;
 484
 485                case DIFF_STATUS_COPIED:
 486                case DIFF_STATUS_RENAMED:
 487                        if (d->rename_status)
 488                                BUG("multiple renames on the same target? how?");
 489                        d->rename_source = xstrdup(p->one->path);
 490                        d->rename_score = p->score * 100 / MAX_SCORE;
 491                        d->rename_status = p->status;
 492                        /* fallthru */
 493                case DIFF_STATUS_MODIFIED:
 494                case DIFF_STATUS_TYPE_CHANGED:
 495                case DIFF_STATUS_UNMERGED:
 496                        d->mode_index = p->one->mode;
 497                        d->mode_worktree = p->two->mode;
 498                        oidcpy(&d->oid_index, &p->one->oid);
 499                        break;
 500
 501                default:
 502                        BUG("unhandled diff-files status '%c'", p->status);
 503                        break;
 504                }
 505
 506        }
 507}
 508
 509static int unmerged_mask(struct index_state *istate, const char *path)
 510{
 511        int pos, mask;
 512        const struct cache_entry *ce;
 513
 514        pos = index_name_pos(istate, path, strlen(path));
 515        if (0 <= pos)
 516                return 0;
 517
 518        mask = 0;
 519        pos = -pos-1;
 520        while (pos < istate->cache_nr) {
 521                ce = istate->cache[pos++];
 522                if (strcmp(ce->name, path) || !ce_stage(ce))
 523                        break;
 524                mask |= (1 << (ce_stage(ce) - 1));
 525        }
 526        return mask;
 527}
 528
 529static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 530                                         struct diff_options *options,
 531                                         void *data)
 532{
 533        struct wt_status *s = data;
 534        int i;
 535
 536        for (i = 0; i < q->nr; i++) {
 537                struct diff_filepair *p;
 538                struct string_list_item *it;
 539                struct wt_status_change_data *d;
 540
 541                p = q->queue[i];
 542                it = string_list_insert(&s->change, p->two->path);
 543                d = it->util;
 544                if (!d) {
 545                        d = xcalloc(1, sizeof(*d));
 546                        it->util = d;
 547                }
 548                if (!d->index_status)
 549                        d->index_status = p->status;
 550                switch (p->status) {
 551                case DIFF_STATUS_ADDED:
 552                        /* Leave {mode,oid}_head zero for an add. */
 553                        d->mode_index = p->two->mode;
 554                        oidcpy(&d->oid_index, &p->two->oid);
 555                        s->committable = 1;
 556                        break;
 557                case DIFF_STATUS_DELETED:
 558                        d->mode_head = p->one->mode;
 559                        oidcpy(&d->oid_head, &p->one->oid);
 560                        s->committable = 1;
 561                        /* Leave {mode,oid}_index zero for a delete. */
 562                        break;
 563
 564                case DIFF_STATUS_COPIED:
 565                case DIFF_STATUS_RENAMED:
 566                        if (d->rename_status)
 567                                BUG("multiple renames on the same target? how?");
 568                        d->rename_source = xstrdup(p->one->path);
 569                        d->rename_score = p->score * 100 / MAX_SCORE;
 570                        d->rename_status = p->status;
 571                        /* fallthru */
 572                case DIFF_STATUS_MODIFIED:
 573                case DIFF_STATUS_TYPE_CHANGED:
 574                        d->mode_head = p->one->mode;
 575                        d->mode_index = p->two->mode;
 576                        oidcpy(&d->oid_head, &p->one->oid);
 577                        oidcpy(&d->oid_index, &p->two->oid);
 578                        s->committable = 1;
 579                        break;
 580                case DIFF_STATUS_UNMERGED:
 581                        d->stagemask = unmerged_mask(s->repo->index,
 582                                                     p->two->path);
 583                        /*
 584                         * Don't bother setting {mode,oid}_{head,index} since the print
 585                         * code will output the stage values directly and not use the
 586                         * values in these fields.
 587                         */
 588                        break;
 589
 590                default:
 591                        BUG("unhandled diff-index status '%c'", p->status);
 592                        break;
 593                }
 594        }
 595}
 596
 597static void wt_status_collect_changes_worktree(struct wt_status *s)
 598{
 599        struct rev_info rev;
 600
 601        repo_init_revisions(s->repo, &rev, NULL);
 602        setup_revisions(0, NULL, &rev, NULL);
 603        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 604        rev.diffopt.flags.dirty_submodules = 1;
 605        rev.diffopt.ita_invisible_in_index = 1;
 606        if (!s->show_untracked_files)
 607                rev.diffopt.flags.ignore_untracked_in_submodules = 1;
 608        if (s->ignore_submodule_arg) {
 609                rev.diffopt.flags.override_submodule_config = 1;
 610                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 611        }
 612        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 613        rev.diffopt.format_callback_data = s;
 614        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 615        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 616        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 617        copy_pathspec(&rev.prune_data, &s->pathspec);
 618        run_diff_files(&rev, 0);
 619}
 620
 621static void wt_status_collect_changes_index(struct wt_status *s)
 622{
 623        struct rev_info rev;
 624        struct setup_revision_opt opt;
 625
 626        repo_init_revisions(s->repo, &rev, NULL);
 627        memset(&opt, 0, sizeof(opt));
 628        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
 629        setup_revisions(0, NULL, &rev, &opt);
 630
 631        rev.diffopt.flags.override_submodule_config = 1;
 632        rev.diffopt.ita_invisible_in_index = 1;
 633        if (s->ignore_submodule_arg) {
 634                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 635        } else {
 636                /*
 637                 * Unless the user did explicitly request a submodule ignore
 638                 * mode by passing a command line option we do not ignore any
 639                 * changed submodule SHA-1s when comparing index and HEAD, no
 640                 * matter what is configured. Otherwise the user won't be
 641                 * shown any submodules she manually added (and which are
 642                 * staged to be committed), which would be really confusing.
 643                 */
 644                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 645        }
 646
 647        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 648        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 649        rev.diffopt.format_callback_data = s;
 650        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 651        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 652        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 653        copy_pathspec(&rev.prune_data, &s->pathspec);
 654        run_diff_index(&rev, 1);
 655}
 656
 657static void wt_status_collect_changes_initial(struct wt_status *s)
 658{
 659        struct index_state *istate = s->repo->index;
 660        int i;
 661
 662        for (i = 0; i < istate->cache_nr; i++) {
 663                struct string_list_item *it;
 664                struct wt_status_change_data *d;
 665                const struct cache_entry *ce = istate->cache[i];
 666
 667                if (!ce_path_match(istate, ce, &s->pathspec, NULL))
 668                        continue;
 669                if (ce_intent_to_add(ce))
 670                        continue;
 671                it = string_list_insert(&s->change, ce->name);
 672                d = it->util;
 673                if (!d) {
 674                        d = xcalloc(1, sizeof(*d));
 675                        it->util = d;
 676                }
 677                if (ce_stage(ce)) {
 678                        d->index_status = DIFF_STATUS_UNMERGED;
 679                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 680                        /*
 681                         * Don't bother setting {mode,oid}_{head,index} since the print
 682                         * code will output the stage values directly and not use the
 683                         * values in these fields.
 684                         */
 685                        s->committable = 1;
 686                } else {
 687                        d->index_status = DIFF_STATUS_ADDED;
 688                        /* Leave {mode,oid}_head zero for adds. */
 689                        d->mode_index = ce->ce_mode;
 690                        oidcpy(&d->oid_index, &ce->oid);
 691                        s->committable = 1;
 692                }
 693        }
 694}
 695
 696static void wt_status_collect_untracked(struct wt_status *s)
 697{
 698        int i;
 699        struct dir_struct dir;
 700        uint64_t t_begin = getnanotime();
 701        struct index_state *istate = s->repo->index;
 702
 703        if (!s->show_untracked_files)
 704                return;
 705
 706        memset(&dir, 0, sizeof(dir));
 707        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 708                dir.flags |=
 709                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 710        if (s->show_ignored_mode) {
 711                dir.flags |= DIR_SHOW_IGNORED_TOO;
 712
 713                if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
 714                        dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
 715        } else {
 716                dir.untracked = istate->untracked;
 717        }
 718
 719        setup_standard_excludes(&dir);
 720
 721        fill_directory(&dir, istate, &s->pathspec);
 722
 723        for (i = 0; i < dir.nr; i++) {
 724                struct dir_entry *ent = dir.entries[i];
 725                if (index_name_is_other(istate, ent->name, ent->len) &&
 726                    dir_path_match(istate, ent, &s->pathspec, 0, NULL))
 727                        string_list_insert(&s->untracked, ent->name);
 728                free(ent);
 729        }
 730
 731        for (i = 0; i < dir.ignored_nr; i++) {
 732                struct dir_entry *ent = dir.ignored[i];
 733                if (index_name_is_other(istate, ent->name, ent->len) &&
 734                    dir_path_match(istate, ent, &s->pathspec, 0, NULL))
 735                        string_list_insert(&s->ignored, ent->name);
 736                free(ent);
 737        }
 738
 739        free(dir.entries);
 740        free(dir.ignored);
 741        clear_directory(&dir);
 742
 743        if (advice_status_u_option)
 744                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 745}
 746
 747static int has_unmerged(struct wt_status *s)
 748{
 749        int i;
 750
 751        for (i = 0; i < s->change.nr; i++) {
 752                struct wt_status_change_data *d;
 753                d = s->change.items[i].util;
 754                if (d->stagemask)
 755                        return 1;
 756        }
 757        return 0;
 758}
 759
 760void wt_status_collect(struct wt_status *s)
 761{
 762        trace2_region_enter("status", "worktrees", s->repo);
 763        wt_status_collect_changes_worktree(s);
 764        trace2_region_leave("status", "worktrees", s->repo);
 765
 766        if (s->is_initial) {
 767                trace2_region_enter("status", "initial", s->repo);
 768                wt_status_collect_changes_initial(s);
 769                trace2_region_leave("status", "initial", s->repo);
 770        } else {
 771                trace2_region_enter("status", "index", s->repo);
 772                wt_status_collect_changes_index(s);
 773                trace2_region_leave("status", "index", s->repo);
 774        }
 775
 776        trace2_region_enter("status", "untracked", s->repo);
 777        wt_status_collect_untracked(s);
 778        trace2_region_leave("status", "untracked", s->repo);
 779
 780        wt_status_get_state(s->repo, &s->state, s->branch && !strcmp(s->branch, "HEAD"));
 781        if (s->state.merge_in_progress && !has_unmerged(s))
 782                s->committable = 1;
 783}
 784
 785void wt_status_collect_free_buffers(struct wt_status *s)
 786{
 787        free(s->state.branch);
 788        free(s->state.onto);
 789        free(s->state.detached_from);
 790}
 791
 792static void wt_longstatus_print_unmerged(struct wt_status *s)
 793{
 794        int shown_header = 0;
 795        int i;
 796
 797        for (i = 0; i < s->change.nr; i++) {
 798                struct wt_status_change_data *d;
 799                struct string_list_item *it;
 800                it = &(s->change.items[i]);
 801                d = it->util;
 802                if (!d->stagemask)
 803                        continue;
 804                if (!shown_header) {
 805                        wt_longstatus_print_unmerged_header(s);
 806                        shown_header = 1;
 807                }
 808                wt_longstatus_print_unmerged_data(s, it);
 809        }
 810        if (shown_header)
 811                wt_longstatus_print_trailer(s);
 812
 813}
 814
 815static void wt_longstatus_print_updated(struct wt_status *s)
 816{
 817        int shown_header = 0;
 818        int i;
 819
 820        for (i = 0; i < s->change.nr; i++) {
 821                struct wt_status_change_data *d;
 822                struct string_list_item *it;
 823                it = &(s->change.items[i]);
 824                d = it->util;
 825                if (!d->index_status ||
 826                    d->index_status == DIFF_STATUS_UNMERGED)
 827                        continue;
 828                if (!shown_header) {
 829                        wt_longstatus_print_cached_header(s);
 830                        shown_header = 1;
 831                }
 832                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 833        }
 834        if (shown_header)
 835                wt_longstatus_print_trailer(s);
 836}
 837
 838/*
 839 * -1 : has delete
 840 *  0 : no change
 841 *  1 : some change but no delete
 842 */
 843static int wt_status_check_worktree_changes(struct wt_status *s,
 844                                             int *dirty_submodules)
 845{
 846        int i;
 847        int changes = 0;
 848
 849        *dirty_submodules = 0;
 850
 851        for (i = 0; i < s->change.nr; i++) {
 852                struct wt_status_change_data *d;
 853                d = s->change.items[i].util;
 854                if (!d->worktree_status ||
 855                    d->worktree_status == DIFF_STATUS_UNMERGED)
 856                        continue;
 857                if (!changes)
 858                        changes = 1;
 859                if (d->dirty_submodule)
 860                        *dirty_submodules = 1;
 861                if (d->worktree_status == DIFF_STATUS_DELETED)
 862                        changes = -1;
 863        }
 864        return changes;
 865}
 866
 867static void wt_longstatus_print_changed(struct wt_status *s)
 868{
 869        int i, dirty_submodules;
 870        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 871
 872        if (!worktree_changes)
 873                return;
 874
 875        wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 876
 877        for (i = 0; i < s->change.nr; i++) {
 878                struct wt_status_change_data *d;
 879                struct string_list_item *it;
 880                it = &(s->change.items[i]);
 881                d = it->util;
 882                if (!d->worktree_status ||
 883                    d->worktree_status == DIFF_STATUS_UNMERGED)
 884                        continue;
 885                wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 886        }
 887        wt_longstatus_print_trailer(s);
 888}
 889
 890static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
 891                            const char *email, timestamp_t timestamp, int tz,
 892                            const char *message, void *cb_data)
 893{
 894        int *c = cb_data;
 895        (*c)++;
 896        return 0;
 897}
 898
 899static void wt_longstatus_print_stash_summary(struct wt_status *s)
 900{
 901        int stash_count = 0;
 902
 903        for_each_reflog_ent("refs/stash", stash_count_refs, &stash_count);
 904        if (stash_count > 0)
 905                status_printf_ln(s, GIT_COLOR_NORMAL,
 906                                 Q_("Your stash currently has %d entry",
 907                                    "Your stash currently has %d entries", stash_count),
 908                                 stash_count);
 909}
 910
 911static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 912{
 913        struct child_process sm_summary = CHILD_PROCESS_INIT;
 914        struct strbuf cmd_stdout = STRBUF_INIT;
 915        struct strbuf summary = STRBUF_INIT;
 916        char *summary_content;
 917
 918        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 919                         s->index_file);
 920
 921        argv_array_push(&sm_summary.args, "submodule");
 922        argv_array_push(&sm_summary.args, "summary");
 923        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 924        argv_array_push(&sm_summary.args, "--for-status");
 925        argv_array_push(&sm_summary.args, "--summary-limit");
 926        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 927        if (!uncommitted)
 928                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 929
 930        sm_summary.git_cmd = 1;
 931        sm_summary.no_stdin = 1;
 932
 933        capture_command(&sm_summary, &cmd_stdout, 1024);
 934
 935        /* prepend header, only if there's an actual output */
 936        if (cmd_stdout.len) {
 937                if (uncommitted)
 938                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 939                else
 940                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 941                strbuf_addstr(&summary, "\n\n");
 942        }
 943        strbuf_addbuf(&summary, &cmd_stdout);
 944        strbuf_release(&cmd_stdout);
 945
 946        if (s->display_comment_prefix) {
 947                size_t len;
 948                summary_content = strbuf_detach(&summary, &len);
 949                strbuf_add_commented_lines(&summary, summary_content, len);
 950                free(summary_content);
 951        }
 952
 953        fputs(summary.buf, s->fp);
 954        strbuf_release(&summary);
 955}
 956
 957static void wt_longstatus_print_other(struct wt_status *s,
 958                                      struct string_list *l,
 959                                      const char *what,
 960                                      const char *how)
 961{
 962        int i;
 963        struct strbuf buf = STRBUF_INIT;
 964        static struct string_list output = STRING_LIST_INIT_DUP;
 965        struct column_options copts;
 966
 967        if (!l->nr)
 968                return;
 969
 970        wt_longstatus_print_other_header(s, what, how);
 971
 972        for (i = 0; i < l->nr; i++) {
 973                struct string_list_item *it;
 974                const char *path;
 975                it = &(l->items[i]);
 976                path = quote_path(it->string, s->prefix, &buf);
 977                if (column_active(s->colopts)) {
 978                        string_list_append(&output, path);
 979                        continue;
 980                }
 981                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 982                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 983                                   "%s\n", path);
 984        }
 985
 986        strbuf_release(&buf);
 987        if (!column_active(s->colopts))
 988                goto conclude;
 989
 990        strbuf_addf(&buf, "%s%s\t%s",
 991                    color(WT_STATUS_HEADER, s),
 992                    s->display_comment_prefix ? "#" : "",
 993                    color(WT_STATUS_UNTRACKED, s));
 994        memset(&copts, 0, sizeof(copts));
 995        copts.padding = 1;
 996        copts.indent = buf.buf;
 997        if (want_color(s->use_color))
 998                copts.nl = GIT_COLOR_RESET "\n";
 999        print_columns(&output, s->colopts, &copts);
1000        string_list_clear(&output, 0);
1001        strbuf_release(&buf);
1002conclude:
1003        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1004}
1005
1006size_t wt_status_locate_end(const char *s, size_t len)
1007{
1008        const char *p;
1009        struct strbuf pattern = STRBUF_INIT;
1010
1011        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
1012        if (starts_with(s, pattern.buf + 1))
1013                len = 0;
1014        else if ((p = strstr(s, pattern.buf)))
1015                len = p - s + 1;
1016        strbuf_release(&pattern);
1017        return len;
1018}
1019
1020void wt_status_append_cut_line(struct strbuf *buf)
1021{
1022        const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
1023
1024        strbuf_commented_addf(buf, "%s", cut_line);
1025        strbuf_add_commented_lines(buf, explanation, strlen(explanation));
1026}
1027
1028void wt_status_add_cut_line(FILE *fp)
1029{
1030        struct strbuf buf = STRBUF_INIT;
1031
1032        wt_status_append_cut_line(&buf);
1033        fputs(buf.buf, fp);
1034        strbuf_release(&buf);
1035}
1036
1037static void wt_longstatus_print_verbose(struct wt_status *s)
1038{
1039        struct rev_info rev;
1040        struct setup_revision_opt opt;
1041        int dirty_submodules;
1042        const char *c = color(WT_STATUS_HEADER, s);
1043
1044        repo_init_revisions(s->repo, &rev, NULL);
1045        rev.diffopt.flags.allow_textconv = 1;
1046        rev.diffopt.ita_invisible_in_index = 1;
1047
1048        memset(&opt, 0, sizeof(opt));
1049        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
1050        setup_revisions(0, NULL, &rev, &opt);
1051
1052        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
1053        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
1054        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
1055        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
1056        rev.diffopt.file = s->fp;
1057        rev.diffopt.close_file = 0;
1058        /*
1059         * If we're not going to stdout, then we definitely don't
1060         * want color, since we are going to the commit message
1061         * file (and even the "auto" setting won't work, since it
1062         * will have checked isatty on stdout). But we then do want
1063         * to insert the scissor line here to reliably remove the
1064         * diff before committing.
1065         */
1066        if (s->fp != stdout) {
1067                rev.diffopt.use_color = 0;
1068                wt_status_add_cut_line(s->fp);
1069        }
1070        if (s->verbose > 1 && s->committable) {
1071                /* print_updated() printed a header, so do we */
1072                if (s->fp != stdout)
1073                        wt_longstatus_print_trailer(s);
1074                status_printf_ln(s, c, _("Changes to be committed:"));
1075                rev.diffopt.a_prefix = "c/";
1076                rev.diffopt.b_prefix = "i/";
1077        } /* else use prefix as per user config */
1078        run_diff_index(&rev, 1);
1079        if (s->verbose > 1 &&
1080            wt_status_check_worktree_changes(s, &dirty_submodules)) {
1081                status_printf_ln(s, c,
1082                        "--------------------------------------------------");
1083                status_printf_ln(s, c, _("Changes not staged for commit:"));
1084                setup_work_tree();
1085                rev.diffopt.a_prefix = "i/";
1086                rev.diffopt.b_prefix = "w/";
1087                run_diff_files(&rev, 0);
1088        }
1089}
1090
1091static void wt_longstatus_print_tracking(struct wt_status *s)
1092{
1093        struct strbuf sb = STRBUF_INIT;
1094        const char *cp, *ep, *branch_name;
1095        struct branch *branch;
1096        char comment_line_string[3];
1097        int i;
1098        uint64_t t_begin = 0;
1099
1100        assert(s->branch && !s->is_initial);
1101        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
1102                return;
1103        branch = branch_get(branch_name);
1104
1105        t_begin = getnanotime();
1106
1107        if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
1108                return;
1109
1110        if (advice_status_ahead_behind_warning &&
1111            s->ahead_behind_flags == AHEAD_BEHIND_FULL) {
1112                uint64_t t_delta_in_ms = (getnanotime() - t_begin) / 1000000;
1113                if (t_delta_in_ms > AB_DELAY_WARNING_IN_MS) {
1114                        strbuf_addf(&sb, _("\n"
1115                                           "It took %.2f seconds to compute the branch ahead/behind values.\n"
1116                                           "You can use '--no-ahead-behind' to avoid this.\n"),
1117                                    t_delta_in_ms / 1000.0);
1118                }
1119        }
1120
1121        i = 0;
1122        if (s->display_comment_prefix) {
1123                comment_line_string[i++] = comment_line_char;
1124                comment_line_string[i++] = ' ';
1125        }
1126        comment_line_string[i] = '\0';
1127
1128        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
1129                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1130                                 "%s%.*s", comment_line_string,
1131                                 (int)(ep - cp), cp);
1132        if (s->display_comment_prefix)
1133                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
1134                                 comment_line_char);
1135        else
1136                fputs("\n", s->fp);
1137        strbuf_release(&sb);
1138}
1139
1140static void show_merge_in_progress(struct wt_status *s,
1141                                   const char *color)
1142{
1143        if (has_unmerged(s)) {
1144                status_printf_ln(s, color, _("You have unmerged paths."));
1145                if (s->hints) {
1146                        status_printf_ln(s, color,
1147                                         _("  (fix conflicts and run \"git commit\")"));
1148                        status_printf_ln(s, color,
1149                                         _("  (use \"git merge --abort\" to abort the merge)"));
1150                }
1151        } else {
1152                status_printf_ln(s, color,
1153                        _("All conflicts fixed but you are still merging."));
1154                if (s->hints)
1155                        status_printf_ln(s, color,
1156                                _("  (use \"git commit\" to conclude merge)"));
1157        }
1158        wt_longstatus_print_trailer(s);
1159}
1160
1161static void show_am_in_progress(struct wt_status *s,
1162                                const char *color)
1163{
1164        status_printf_ln(s, color,
1165                _("You are in the middle of an am session."));
1166        if (s->state.am_empty_patch)
1167                status_printf_ln(s, color,
1168                        _("The current patch is empty."));
1169        if (s->hints) {
1170                if (!s->state.am_empty_patch)
1171                        status_printf_ln(s, color,
1172                                _("  (fix conflicts and then run \"git am --continue\")"));
1173                status_printf_ln(s, color,
1174                        _("  (use \"git am --skip\" to skip this patch)"));
1175                status_printf_ln(s, color,
1176                        _("  (use \"git am --abort\" to restore the original branch)"));
1177        }
1178        wt_longstatus_print_trailer(s);
1179}
1180
1181static char *read_line_from_git_path(const char *filename)
1182{
1183        struct strbuf buf = STRBUF_INIT;
1184        FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
1185
1186        if (!fp) {
1187                strbuf_release(&buf);
1188                return NULL;
1189        }
1190        strbuf_getline_lf(&buf, fp);
1191        if (!fclose(fp)) {
1192                return strbuf_detach(&buf, NULL);
1193        } else {
1194                strbuf_release(&buf);
1195                return NULL;
1196        }
1197}
1198
1199static int split_commit_in_progress(struct wt_status *s)
1200{
1201        int split_in_progress = 0;
1202        char *head, *orig_head, *rebase_amend, *rebase_orig_head;
1203
1204        if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1205            !s->branch || strcmp(s->branch, "HEAD"))
1206                return 0;
1207
1208        head = read_line_from_git_path("HEAD");
1209        orig_head = read_line_from_git_path("ORIG_HEAD");
1210        rebase_amend = read_line_from_git_path("rebase-merge/amend");
1211        rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1212
1213        if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
1214                ; /* fall through, no split in progress */
1215        else if (!strcmp(rebase_amend, rebase_orig_head))
1216                split_in_progress = !!strcmp(head, rebase_amend);
1217        else if (strcmp(orig_head, rebase_orig_head))
1218                split_in_progress = 1;
1219
1220        free(head);
1221        free(orig_head);
1222        free(rebase_amend);
1223        free(rebase_orig_head);
1224
1225        return split_in_progress;
1226}
1227
1228/*
1229 * Turn
1230 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1231 * into
1232 * "pick d6a2f03 some message"
1233 *
1234 * The function assumes that the line does not contain useless spaces
1235 * before or after the command.
1236 */
1237static void abbrev_sha1_in_line(struct strbuf *line)
1238{
1239        struct strbuf **split;
1240        int i;
1241
1242        if (starts_with(line->buf, "exec ") ||
1243            starts_with(line->buf, "x ") ||
1244            starts_with(line->buf, "label ") ||
1245            starts_with(line->buf, "l "))
1246                return;
1247
1248        split = strbuf_split_max(line, ' ', 3);
1249        if (split[0] && split[1]) {
1250                struct object_id oid;
1251
1252                /*
1253                 * strbuf_split_max left a space. Trim it and re-add
1254                 * it after abbreviation.
1255                 */
1256                strbuf_trim(split[1]);
1257                if (!get_oid(split[1]->buf, &oid)) {
1258                        strbuf_reset(split[1]);
1259                        strbuf_add_unique_abbrev(split[1], &oid,
1260                                                 DEFAULT_ABBREV);
1261                        strbuf_addch(split[1], ' ');
1262                        strbuf_reset(line);
1263                        for (i = 0; split[i]; i++)
1264                                strbuf_addbuf(line, split[i]);
1265                }
1266        }
1267        strbuf_list_free(split);
1268}
1269
1270static int read_rebase_todolist(const char *fname, struct string_list *lines)
1271{
1272        struct strbuf line = STRBUF_INIT;
1273        FILE *f = fopen(git_path("%s", fname), "r");
1274
1275        if (!f) {
1276                if (errno == ENOENT)
1277                        return -1;
1278                die_errno("Could not open file %s for reading",
1279                          git_path("%s", fname));
1280        }
1281        while (!strbuf_getline_lf(&line, f)) {
1282                if (line.len && line.buf[0] == comment_line_char)
1283                        continue;
1284                strbuf_trim(&line);
1285                if (!line.len)
1286                        continue;
1287                abbrev_sha1_in_line(&line);
1288                string_list_append(lines, line.buf);
1289        }
1290        fclose(f);
1291        strbuf_release(&line);
1292        return 0;
1293}
1294
1295static void show_rebase_information(struct wt_status *s,
1296                                    const char *color)
1297{
1298        if (s->state.rebase_interactive_in_progress) {
1299                int i;
1300                int nr_lines_to_show = 2;
1301
1302                struct string_list have_done = STRING_LIST_INIT_DUP;
1303                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1304
1305                read_rebase_todolist("rebase-merge/done", &have_done);
1306                if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1307                                         &yet_to_do))
1308                        status_printf_ln(s, color,
1309                                _("git-rebase-todo is missing."));
1310                if (have_done.nr == 0)
1311                        status_printf_ln(s, color, _("No commands done."));
1312                else {
1313                        status_printf_ln(s, color,
1314                                Q_("Last command done (%d command done):",
1315                                        "Last commands done (%d commands done):",
1316                                        have_done.nr),
1317                                have_done.nr);
1318                        for (i = (have_done.nr > nr_lines_to_show)
1319                                ? have_done.nr - nr_lines_to_show : 0;
1320                                i < have_done.nr;
1321                                i++)
1322                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1323                        if (have_done.nr > nr_lines_to_show && s->hints)
1324                                status_printf_ln(s, color,
1325                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1326                }
1327
1328                if (yet_to_do.nr == 0)
1329                        status_printf_ln(s, color,
1330                                         _("No commands remaining."));
1331                else {
1332                        status_printf_ln(s, color,
1333                                Q_("Next command to do (%d remaining command):",
1334                                        "Next commands to do (%d remaining commands):",
1335                                        yet_to_do.nr),
1336                                yet_to_do.nr);
1337                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1338                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1339                        if (s->hints)
1340                                status_printf_ln(s, color,
1341                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1342                }
1343                string_list_clear(&yet_to_do, 0);
1344                string_list_clear(&have_done, 0);
1345        }
1346}
1347
1348static void print_rebase_state(struct wt_status *s,
1349                               const char *color)
1350{
1351        if (s->state.branch)
1352                status_printf_ln(s, color,
1353                                 _("You are currently 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 rebasing."));
1359}
1360
1361static void show_rebase_in_progress(struct wt_status *s,
1362                                    const char *color)
1363{
1364        struct stat st;
1365
1366        show_rebase_information(s, color);
1367        if (has_unmerged(s)) {
1368                print_rebase_state(s, color);
1369                if (s->hints) {
1370                        status_printf_ln(s, color,
1371                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1372                        status_printf_ln(s, color,
1373                                _("  (use \"git rebase --skip\" to skip this patch)"));
1374                        status_printf_ln(s, color,
1375                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1376                }
1377        } else if (s->state.rebase_in_progress ||
1378                   !stat(git_path_merge_msg(s->repo), &st)) {
1379                print_rebase_state(s, color);
1380                if (s->hints)
1381                        status_printf_ln(s, color,
1382                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1383        } else if (split_commit_in_progress(s)) {
1384                if (s->state.branch)
1385                        status_printf_ln(s, color,
1386                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1387                                         s->state.branch,
1388                                         s->state.onto);
1389                else
1390                        status_printf_ln(s, color,
1391                                         _("You are currently splitting a commit during a rebase."));
1392                if (s->hints)
1393                        status_printf_ln(s, color,
1394                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1395        } else {
1396                if (s->state.branch)
1397                        status_printf_ln(s, color,
1398                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1399                                         s->state.branch,
1400                                         s->state.onto);
1401                else
1402                        status_printf_ln(s, color,
1403                                         _("You are currently editing a commit during a rebase."));
1404                if (s->hints && !s->amend) {
1405                        status_printf_ln(s, color,
1406                                _("  (use \"git commit --amend\" to amend the current commit)"));
1407                        status_printf_ln(s, color,
1408                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1409                }
1410        }
1411        wt_longstatus_print_trailer(s);
1412}
1413
1414static void show_cherry_pick_in_progress(struct wt_status *s,
1415                                         const char *color)
1416{
1417        if (is_null_oid(&s->state.cherry_pick_head_oid))
1418                status_printf_ln(s, color,
1419                        _("Cherry-pick currently in progress."));
1420        else
1421                status_printf_ln(s, color,
1422                        _("You are currently cherry-picking commit %s."),
1423                        find_unique_abbrev(&s->state.cherry_pick_head_oid,
1424                                           DEFAULT_ABBREV));
1425
1426        if (s->hints) {
1427                if (has_unmerged(s))
1428                        status_printf_ln(s, color,
1429                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1430                else if (is_null_oid(&s->state.cherry_pick_head_oid))
1431                        status_printf_ln(s, color,
1432                                _("  (run \"git cherry-pick --continue\" to continue)"));
1433                else
1434                        status_printf_ln(s, color,
1435                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1436                status_printf_ln(s, color,
1437                        _("  (use \"git cherry-pick --skip\" to skip this patch)"));
1438                status_printf_ln(s, color,
1439                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1440        }
1441        wt_longstatus_print_trailer(s);
1442}
1443
1444static void show_revert_in_progress(struct wt_status *s,
1445                                    const char *color)
1446{
1447        if (is_null_oid(&s->state.revert_head_oid))
1448                status_printf_ln(s, color,
1449                        _("Revert currently in progress."));
1450        else
1451                status_printf_ln(s, color,
1452                        _("You are currently reverting commit %s."),
1453                        find_unique_abbrev(&s->state.revert_head_oid,
1454                                           DEFAULT_ABBREV));
1455        if (s->hints) {
1456                if (has_unmerged(s))
1457                        status_printf_ln(s, color,
1458                                _("  (fix conflicts and run \"git revert --continue\")"));
1459                else if (is_null_oid(&s->state.revert_head_oid))
1460                        status_printf_ln(s, color,
1461                                _("  (run \"git revert --continue\" to continue)"));
1462                else
1463                        status_printf_ln(s, color,
1464                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1465                status_printf_ln(s, color,
1466                        _("  (use \"git revert --skip\" to skip this patch)"));
1467                status_printf_ln(s, color,
1468                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1469        }
1470        wt_longstatus_print_trailer(s);
1471}
1472
1473static void show_bisect_in_progress(struct wt_status *s,
1474                                    const char *color)
1475{
1476        if (s->state.branch)
1477                status_printf_ln(s, color,
1478                                 _("You are currently bisecting, started from branch '%s'."),
1479                                 s->state.branch);
1480        else
1481                status_printf_ln(s, color,
1482                                 _("You are currently bisecting."));
1483        if (s->hints)
1484                status_printf_ln(s, color,
1485                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1486        wt_longstatus_print_trailer(s);
1487}
1488
1489/*
1490 * Extract branch information from rebase/bisect
1491 */
1492static char *get_branch(const struct worktree *wt, const char *path)
1493{
1494        struct strbuf sb = STRBUF_INIT;
1495        struct object_id oid;
1496        const char *branch_name;
1497
1498        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1499                goto got_nothing;
1500
1501        while (sb.len && sb.buf[sb.len - 1] == '\n')
1502                strbuf_setlen(&sb, sb.len - 1);
1503        if (!sb.len)
1504                goto got_nothing;
1505        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1506                strbuf_remove(&sb, 0, branch_name - sb.buf);
1507        else if (starts_with(sb.buf, "refs/"))
1508                ;
1509        else if (!get_oid_hex(sb.buf, &oid)) {
1510                strbuf_reset(&sb);
1511                strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1512        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1513                goto got_nothing;
1514        else                    /* bisect */
1515                ;
1516        return strbuf_detach(&sb, NULL);
1517
1518got_nothing:
1519        strbuf_release(&sb);
1520        return NULL;
1521}
1522
1523struct grab_1st_switch_cbdata {
1524        struct strbuf buf;
1525        struct object_id noid;
1526};
1527
1528static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1529                           const char *email, timestamp_t timestamp, int tz,
1530                           const char *message, void *cb_data)
1531{
1532        struct grab_1st_switch_cbdata *cb = cb_data;
1533        const char *target = NULL, *end;
1534
1535        if (!skip_prefix(message, "checkout: moving from ", &message))
1536                return 0;
1537        target = strstr(message, " to ");
1538        if (!target)
1539                return 0;
1540        target += strlen(" to ");
1541        strbuf_reset(&cb->buf);
1542        oidcpy(&cb->noid, noid);
1543        end = strchrnul(target, '\n');
1544        strbuf_add(&cb->buf, target, end - target);
1545        if (!strcmp(cb->buf.buf, "HEAD")) {
1546                /* HEAD is relative. Resolve it to the right reflog entry. */
1547                strbuf_reset(&cb->buf);
1548                strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1549        }
1550        return 1;
1551}
1552
1553static void wt_status_get_detached_from(struct repository *r,
1554                                        struct wt_status_state *state)
1555{
1556        struct grab_1st_switch_cbdata cb;
1557        struct commit *commit;
1558        struct object_id oid;
1559        char *ref = NULL;
1560
1561        strbuf_init(&cb.buf, 0);
1562        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1563                strbuf_release(&cb.buf);
1564                return;
1565        }
1566
1567        if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
1568            /* sha1 is a commit? match without further lookup */
1569            (oideq(&cb.noid, &oid) ||
1570             /* perhaps sha1 is a tag, try to dereference to a commit */
1571             ((commit = lookup_commit_reference_gently(r, &oid, 1)) != NULL &&
1572              oideq(&cb.noid, &commit->object.oid)))) {
1573                const char *from = ref;
1574                if (!skip_prefix(from, "refs/tags/", &from))
1575                        skip_prefix(from, "refs/remotes/", &from);
1576                state->detached_from = xstrdup(from);
1577        } else
1578                state->detached_from =
1579                        xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
1580        oidcpy(&state->detached_oid, &cb.noid);
1581        state->detached_at = !get_oid("HEAD", &oid) &&
1582                             oideq(&oid, &state->detached_oid);
1583
1584        free(ref);
1585        strbuf_release(&cb.buf);
1586}
1587
1588int wt_status_check_rebase(const struct worktree *wt,
1589                           struct wt_status_state *state)
1590{
1591        struct stat st;
1592
1593        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1594                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1595                        state->am_in_progress = 1;
1596                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1597                                state->am_empty_patch = 1;
1598                } else {
1599                        state->rebase_in_progress = 1;
1600                        state->branch = get_branch(wt, "rebase-apply/head-name");
1601                        state->onto = get_branch(wt, "rebase-apply/onto");
1602                }
1603        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1604                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1605                        state->rebase_interactive_in_progress = 1;
1606                else
1607                        state->rebase_in_progress = 1;
1608                state->branch = get_branch(wt, "rebase-merge/head-name");
1609                state->onto = get_branch(wt, "rebase-merge/onto");
1610        } else
1611                return 0;
1612        return 1;
1613}
1614
1615int wt_status_check_bisect(const struct worktree *wt,
1616                           struct wt_status_state *state)
1617{
1618        struct stat st;
1619
1620        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1621                state->bisect_in_progress = 1;
1622                state->branch = get_branch(wt, "BISECT_START");
1623                return 1;
1624        }
1625        return 0;
1626}
1627
1628void wt_status_get_state(struct repository *r,
1629                         struct wt_status_state *state,
1630                         int get_detached_from)
1631{
1632        struct stat st;
1633        struct object_id oid;
1634        enum replay_action action;
1635
1636        if (!stat(git_path_merge_head(r), &st)) {
1637                wt_status_check_rebase(NULL, state);
1638                state->merge_in_progress = 1;
1639        } else if (wt_status_check_rebase(NULL, state)) {
1640                ;               /* all set */
1641        } else if (!stat(git_path_cherry_pick_head(r), &st) &&
1642                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
1643                state->cherry_pick_in_progress = 1;
1644                oidcpy(&state->cherry_pick_head_oid, &oid);
1645        }
1646        wt_status_check_bisect(NULL, state);
1647        if (!stat(git_path_revert_head(r), &st) &&
1648            !get_oid("REVERT_HEAD", &oid)) {
1649                state->revert_in_progress = 1;
1650                oidcpy(&state->revert_head_oid, &oid);
1651        }
1652        if (!sequencer_get_last_command(r, &action)) {
1653                if (action == REPLAY_PICK) {
1654                        state->cherry_pick_in_progress = 1;
1655                        oidcpy(&state->cherry_pick_head_oid, &null_oid);
1656                } else {
1657                        state->revert_in_progress = 1;
1658                        oidcpy(&state->revert_head_oid, &null_oid);
1659                }
1660        }
1661        if (get_detached_from)
1662                wt_status_get_detached_from(r, state);
1663}
1664
1665static void wt_longstatus_print_state(struct wt_status *s)
1666{
1667        const char *state_color = color(WT_STATUS_HEADER, s);
1668        struct wt_status_state *state = &s->state;
1669
1670        if (state->merge_in_progress) {
1671                if (state->rebase_interactive_in_progress) {
1672                        show_rebase_information(s, state_color);
1673                        fputs("\n", s->fp);
1674                }
1675                show_merge_in_progress(s, state_color);
1676        } else if (state->am_in_progress)
1677                show_am_in_progress(s, state_color);
1678        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1679                show_rebase_in_progress(s, state_color);
1680        else if (state->cherry_pick_in_progress)
1681                show_cherry_pick_in_progress(s, state_color);
1682        else if (state->revert_in_progress)
1683                show_revert_in_progress(s, state_color);
1684        if (state->bisect_in_progress)
1685                show_bisect_in_progress(s, state_color);
1686}
1687
1688static void wt_longstatus_print(struct wt_status *s)
1689{
1690        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1691        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1692
1693        if (s->branch) {
1694                const char *on_what = _("On branch ");
1695                const char *branch_name = s->branch;
1696                if (!strcmp(branch_name, "HEAD")) {
1697                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1698                        if (s->state.rebase_in_progress ||
1699                            s->state.rebase_interactive_in_progress) {
1700                                if (s->state.rebase_interactive_in_progress)
1701                                        on_what = _("interactive rebase in progress; onto ");
1702                                else
1703                                        on_what = _("rebase in progress; onto ");
1704                                branch_name = s->state.onto;
1705                        } else if (s->state.detached_from) {
1706                                branch_name = s->state.detached_from;
1707                                if (s->state.detached_at)
1708                                        on_what = HEAD_DETACHED_AT;
1709                                else
1710                                        on_what = HEAD_DETACHED_FROM;
1711                        } else {
1712                                branch_name = "";
1713                                on_what = _("Not currently on any branch.");
1714                        }
1715                } else
1716                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1717                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1718                status_printf_more(s, branch_status_color, "%s", on_what);
1719                status_printf_more(s, branch_color, "%s\n", branch_name);
1720                if (!s->is_initial)
1721                        wt_longstatus_print_tracking(s);
1722        }
1723
1724        wt_longstatus_print_state(s);
1725
1726        if (s->is_initial) {
1727                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1728                status_printf_ln(s, color(WT_STATUS_HEADER, s),
1729                                 s->commit_template
1730                                 ? _("Initial commit")
1731                                 : _("No commits yet"));
1732                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1733        }
1734
1735        wt_longstatus_print_updated(s);
1736        wt_longstatus_print_unmerged(s);
1737        wt_longstatus_print_changed(s);
1738        if (s->submodule_summary &&
1739            (!s->ignore_submodule_arg ||
1740             strcmp(s->ignore_submodule_arg, "all"))) {
1741                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1742                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1743        }
1744        if (s->show_untracked_files) {
1745                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1746                if (s->show_ignored_mode)
1747                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1748                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1749                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1750                        status_printf_ln(s, GIT_COLOR_NORMAL,
1751                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1752                                           "may speed it up, but you have to be careful not to forget to add\n"
1753                                           "new files yourself (see 'git help status')."),
1754                                         s->untracked_in_ms / 1000.0);
1755                }
1756        } else if (s->committable)
1757                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1758                        s->hints
1759                        ? _(" (use -u option to show untracked files)") : "");
1760
1761        if (s->verbose)
1762                wt_longstatus_print_verbose(s);
1763        if (!s->committable) {
1764                if (s->amend)
1765                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1766                else if (s->nowarn)
1767                        ; /* nothing */
1768                else if (s->workdir_dirty) {
1769                        if (s->hints)
1770                                printf(_("no changes added to commit "
1771                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1772                        else
1773                                printf(_("no changes added to commit\n"));
1774                } else if (s->untracked.nr) {
1775                        if (s->hints)
1776                                printf(_("nothing added to commit but untracked files "
1777                                         "present (use \"git add\" to track)\n"));
1778                        else
1779                                printf(_("nothing added to commit but untracked files present\n"));
1780                } else if (s->is_initial) {
1781                        if (s->hints)
1782                                printf(_("nothing to commit (create/copy files "
1783                                         "and use \"git add\" to track)\n"));
1784                        else
1785                                printf(_("nothing to commit\n"));
1786                } else if (!s->show_untracked_files) {
1787                        if (s->hints)
1788                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1789                        else
1790                                printf(_("nothing to commit\n"));
1791                } else
1792                        printf(_("nothing to commit, working tree clean\n"));
1793        }
1794        if(s->show_stash)
1795                wt_longstatus_print_stash_summary(s);
1796}
1797
1798static void wt_shortstatus_unmerged(struct string_list_item *it,
1799                           struct wt_status *s)
1800{
1801        struct wt_status_change_data *d = it->util;
1802        const char *how = "??";
1803
1804        switch (d->stagemask) {
1805        case 1: how = "DD"; break; /* both deleted */
1806        case 2: how = "AU"; break; /* added by us */
1807        case 3: how = "UD"; break; /* deleted by them */
1808        case 4: how = "UA"; break; /* added by them */
1809        case 5: how = "DU"; break; /* deleted by us */
1810        case 6: how = "AA"; break; /* both added */
1811        case 7: how = "UU"; break; /* both modified */
1812        }
1813        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1814        if (s->null_termination) {
1815                fprintf(stdout, " %s%c", it->string, 0);
1816        } else {
1817                struct strbuf onebuf = STRBUF_INIT;
1818                const char *one;
1819                one = quote_path(it->string, s->prefix, &onebuf);
1820                printf(" %s\n", one);
1821                strbuf_release(&onebuf);
1822        }
1823}
1824
1825static void wt_shortstatus_status(struct string_list_item *it,
1826                         struct wt_status *s)
1827{
1828        struct wt_status_change_data *d = it->util;
1829
1830        if (d->index_status)
1831                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1832        else
1833                putchar(' ');
1834        if (d->worktree_status)
1835                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1836        else
1837                putchar(' ');
1838        putchar(' ');
1839        if (s->null_termination) {
1840                fprintf(stdout, "%s%c", it->string, 0);
1841                if (d->rename_source)
1842                        fprintf(stdout, "%s%c", d->rename_source, 0);
1843        } else {
1844                struct strbuf onebuf = STRBUF_INIT;
1845                const char *one;
1846
1847                if (d->rename_source) {
1848                        one = quote_path(d->rename_source, s->prefix, &onebuf);
1849                        if (*one != '"' && strchr(one, ' ') != NULL) {
1850                                putchar('"');
1851                                strbuf_addch(&onebuf, '"');
1852                                one = onebuf.buf;
1853                        }
1854                        printf("%s -> ", one);
1855                        strbuf_release(&onebuf);
1856                }
1857                one = quote_path(it->string, s->prefix, &onebuf);
1858                if (*one != '"' && strchr(one, ' ') != NULL) {
1859                        putchar('"');
1860                        strbuf_addch(&onebuf, '"');
1861                        one = onebuf.buf;
1862                }
1863                printf("%s\n", one);
1864                strbuf_release(&onebuf);
1865        }
1866}
1867
1868static void wt_shortstatus_other(struct string_list_item *it,
1869                                 struct wt_status *s, const char *sign)
1870{
1871        if (s->null_termination) {
1872                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1873        } else {
1874                struct strbuf onebuf = STRBUF_INIT;
1875                const char *one;
1876                one = quote_path(it->string, s->prefix, &onebuf);
1877                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1878                printf(" %s\n", one);
1879                strbuf_release(&onebuf);
1880        }
1881}
1882
1883static void wt_shortstatus_print_tracking(struct wt_status *s)
1884{
1885        struct branch *branch;
1886        const char *header_color = color(WT_STATUS_HEADER, s);
1887        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1888        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1889
1890        const char *base;
1891        char *short_base;
1892        const char *branch_name;
1893        int num_ours, num_theirs, sti;
1894        int upstream_is_gone = 0;
1895
1896        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1897
1898        if (!s->branch)
1899                return;
1900        branch_name = s->branch;
1901
1902#define LABEL(string) (s->no_gettext ? (string) : _(string))
1903
1904        if (s->is_initial)
1905                color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
1906
1907        if (!strcmp(s->branch, "HEAD")) {
1908                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1909                              LABEL(N_("HEAD (no branch)")));
1910                goto conclude;
1911        }
1912
1913        skip_prefix(branch_name, "refs/heads/", &branch_name);
1914
1915        branch = branch_get(branch_name);
1916
1917        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1918
1919        sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
1920                                 0, s->ahead_behind_flags);
1921        if (sti < 0) {
1922                if (!base)
1923                        goto conclude;
1924
1925                upstream_is_gone = 1;
1926        }
1927
1928        short_base = shorten_unambiguous_ref(base, 0);
1929        color_fprintf(s->fp, header_color, "...");
1930        color_fprintf(s->fp, branch_color_remote, "%s", short_base);
1931        free(short_base);
1932
1933        if (!upstream_is_gone && !sti)
1934                goto conclude;
1935
1936        color_fprintf(s->fp, header_color, " [");
1937        if (upstream_is_gone) {
1938                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1939        } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
1940                color_fprintf(s->fp, header_color, LABEL(N_("different")));
1941        } else if (!num_ours) {
1942                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1943                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1944        } else if (!num_theirs) {
1945                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1946                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1947        } else {
1948                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1949                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1950                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1951                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1952        }
1953
1954        color_fprintf(s->fp, header_color, "]");
1955 conclude:
1956        fputc(s->null_termination ? '\0' : '\n', s->fp);
1957}
1958
1959static void wt_shortstatus_print(struct wt_status *s)
1960{
1961        struct string_list_item *it;
1962
1963        if (s->show_branch)
1964                wt_shortstatus_print_tracking(s);
1965
1966        for_each_string_list_item(it, &s->change) {
1967                struct wt_status_change_data *d = it->util;
1968
1969                if (d->stagemask)
1970                        wt_shortstatus_unmerged(it, s);
1971                else
1972                        wt_shortstatus_status(it, s);
1973        }
1974        for_each_string_list_item(it, &s->untracked)
1975                wt_shortstatus_other(it, s, "??");
1976
1977        for_each_string_list_item(it, &s->ignored)
1978                wt_shortstatus_other(it, s, "!!");
1979}
1980
1981static void wt_porcelain_print(struct wt_status *s)
1982{
1983        s->use_color = 0;
1984        s->relative_paths = 0;
1985        s->prefix = NULL;
1986        s->no_gettext = 1;
1987        wt_shortstatus_print(s);
1988}
1989
1990/*
1991 * Print branch information for porcelain v2 output.  These lines
1992 * are printed when the '--branch' parameter is given.
1993 *
1994 *    # branch.oid <commit><eol>
1995 *    # branch.head <head><eol>
1996 *   [# branch.upstream <upstream><eol>
1997 *   [# branch.ab +<ahead> -<behind><eol>]]
1998 *
1999 *      <commit> ::= the current commit hash or the the literal
2000 *                   "(initial)" to indicate an initialized repo
2001 *                   with no commits.
2002 *
2003 *        <head> ::= <branch_name> the current branch name or
2004 *                   "(detached)" literal when detached head or
2005 *                   "(unknown)" when something is wrong.
2006 *
2007 *    <upstream> ::= the upstream branch name, when set.
2008 *
2009 *       <ahead> ::= integer ahead value or '?'.
2010 *
2011 *      <behind> ::= integer behind value or '?'.
2012 *
2013 * The end-of-line is defined by the -z flag.
2014 *
2015 *                 <eol> ::= NUL when -z,
2016 *                           LF when NOT -z.
2017 *
2018 * When an upstream is set and present, the 'branch.ab' line will
2019 * be printed with the ahead/behind counts for the branch and the
2020 * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
2021 * are different, '?' will be substituted for the actual count.
2022 */
2023static void wt_porcelain_v2_print_tracking(struct wt_status *s)
2024{
2025        struct branch *branch;
2026        const char *base;
2027        const char *branch_name;
2028        int ab_info, nr_ahead, nr_behind;
2029        char eol = s->null_termination ? '\0' : '\n';
2030
2031        fprintf(s->fp, "# branch.oid %s%c",
2032                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
2033                        eol);
2034
2035        if (!s->branch)
2036                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
2037        else {
2038                if (!strcmp(s->branch, "HEAD")) {
2039                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
2040
2041                        if (s->state.rebase_in_progress ||
2042                            s->state.rebase_interactive_in_progress)
2043                                branch_name = s->state.onto;
2044                        else if (s->state.detached_from)
2045                                branch_name = s->state.detached_from;
2046                        else
2047                                branch_name = "";
2048                } else {
2049                        branch_name = NULL;
2050                        skip_prefix(s->branch, "refs/heads/", &branch_name);
2051
2052                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
2053                }
2054
2055                /* Lookup stats on the upstream tracking branch, if set. */
2056                branch = branch_get(branch_name);
2057                base = NULL;
2058                ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
2059                                             &base, 0, s->ahead_behind_flags);
2060                if (base) {
2061                        base = shorten_unambiguous_ref(base, 0);
2062                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
2063                        free((char *)base);
2064
2065                        if (ab_info > 0) {
2066                                /* different */
2067                                if (nr_ahead || nr_behind)
2068                                        fprintf(s->fp, "# branch.ab +%d -%d%c",
2069                                                nr_ahead, nr_behind, eol);
2070                                else
2071                                        fprintf(s->fp, "# branch.ab +? -?%c",
2072                                                eol);
2073                        } else if (!ab_info) {
2074                                /* same */
2075                                fprintf(s->fp, "# branch.ab +0 -0%c", eol);
2076                        }
2077                }
2078        }
2079}
2080
2081/*
2082 * Convert various submodule status values into a
2083 * fixed-length string of characters in the buffer provided.
2084 */
2085static void wt_porcelain_v2_submodule_state(
2086        struct wt_status_change_data *d,
2087        char sub[5])
2088{
2089        if (S_ISGITLINK(d->mode_head) ||
2090                S_ISGITLINK(d->mode_index) ||
2091                S_ISGITLINK(d->mode_worktree)) {
2092                sub[0] = 'S';
2093                sub[1] = d->new_submodule_commits ? 'C' : '.';
2094                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2095                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2096        } else {
2097                sub[0] = 'N';
2098                sub[1] = '.';
2099                sub[2] = '.';
2100                sub[3] = '.';
2101        }
2102        sub[4] = 0;
2103}
2104
2105/*
2106 * Fix-up changed entries before we print them.
2107 */
2108static void wt_porcelain_v2_fix_up_changed(struct string_list_item *it)
2109{
2110        struct wt_status_change_data *d = it->util;
2111
2112        if (!d->index_status) {
2113                /*
2114                 * This entry is unchanged in the index (relative to the head).
2115                 * Therefore, the collect_updated_cb was never called for this
2116                 * entry (during the head-vs-index scan) and so the head column
2117                 * fields were never set.
2118                 *
2119                 * We must have data for the index column (from the
2120                 * index-vs-worktree scan (otherwise, this entry should not be
2121                 * in the list of changes)).
2122                 *
2123                 * Copy index column fields to the head column, so that our
2124                 * output looks complete.
2125                 */
2126                assert(d->mode_head == 0);
2127                d->mode_head = d->mode_index;
2128                oidcpy(&d->oid_head, &d->oid_index);
2129        }
2130
2131        if (!d->worktree_status) {
2132                /*
2133                 * This entry is unchanged in the worktree (relative to the index).
2134                 * Therefore, the collect_changed_cb was never called for this entry
2135                 * (during the index-vs-worktree scan) and so the worktree column
2136                 * fields were never set.
2137                 *
2138                 * We must have data for the index column (from the head-vs-index
2139                 * scan).
2140                 *
2141                 * Copy the index column fields to the worktree column so that
2142                 * our output looks complete.
2143                 *
2144                 * Note that we only have a mode field in the worktree column
2145                 * because the scan code tries really hard to not have to compute it.
2146                 */
2147                assert(d->mode_worktree == 0);
2148                d->mode_worktree = d->mode_index;
2149        }
2150}
2151
2152/*
2153 * Print porcelain v2 info for tracked entries with changes.
2154 */
2155static void wt_porcelain_v2_print_changed_entry(
2156        struct string_list_item *it,
2157        struct wt_status *s)
2158{
2159        struct wt_status_change_data *d = it->util;
2160        struct strbuf buf = STRBUF_INIT;
2161        struct strbuf buf_from = STRBUF_INIT;
2162        const char *path = NULL;
2163        const char *path_from = NULL;
2164        char key[3];
2165        char submodule_token[5];
2166        char sep_char, eol_char;
2167
2168        wt_porcelain_v2_fix_up_changed(it);
2169        wt_porcelain_v2_submodule_state(d, submodule_token);
2170
2171        key[0] = d->index_status ? d->index_status : '.';
2172        key[1] = d->worktree_status ? d->worktree_status : '.';
2173        key[2] = 0;
2174
2175        if (s->null_termination) {
2176                /*
2177                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2178                 * A single NUL character separates them.
2179                 */
2180                sep_char = '\0';
2181                eol_char = '\0';
2182                path = it->string;
2183                path_from = d->rename_source;
2184        } else {
2185                /*
2186                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2187                 * The source path is only present when necessary.
2188                 * A single TAB separates them (because paths can contain spaces
2189                 * which are not escaped and C-quoting does escape TAB characters).
2190                 */
2191                sep_char = '\t';
2192                eol_char = '\n';
2193                path = quote_path(it->string, s->prefix, &buf);
2194                if (d->rename_source)
2195                        path_from = quote_path(d->rename_source, s->prefix, &buf_from);
2196        }
2197
2198        if (path_from)
2199                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2200                                key, submodule_token,
2201                                d->mode_head, d->mode_index, d->mode_worktree,
2202                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2203                                d->rename_status, d->rename_score,
2204                                path, sep_char, path_from, eol_char);
2205        else
2206                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2207                                key, submodule_token,
2208                                d->mode_head, d->mode_index, d->mode_worktree,
2209                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2210                                path, eol_char);
2211
2212        strbuf_release(&buf);
2213        strbuf_release(&buf_from);
2214}
2215
2216/*
2217 * Print porcelain v2 status info for unmerged entries.
2218 */
2219static void wt_porcelain_v2_print_unmerged_entry(
2220        struct string_list_item *it,
2221        struct wt_status *s)
2222{
2223        struct wt_status_change_data *d = it->util;
2224        struct index_state *istate = s->repo->index;
2225        const struct cache_entry *ce;
2226        struct strbuf buf_index = STRBUF_INIT;
2227        const char *path_index = NULL;
2228        int pos, stage, sum;
2229        struct {
2230                int mode;
2231                struct object_id oid;
2232        } stages[3];
2233        char *key;
2234        char submodule_token[5];
2235        char unmerged_prefix = 'u';
2236        char eol_char = s->null_termination ? '\0' : '\n';
2237
2238        wt_porcelain_v2_submodule_state(d, submodule_token);
2239
2240        switch (d->stagemask) {
2241        case 1: key = "DD"; break; /* both deleted */
2242        case 2: key = "AU"; break; /* added by us */
2243        case 3: key = "UD"; break; /* deleted by them */
2244        case 4: key = "UA"; break; /* added by them */
2245        case 5: key = "DU"; break; /* deleted by us */
2246        case 6: key = "AA"; break; /* both added */
2247        case 7: key = "UU"; break; /* both modified */
2248        default:
2249                BUG("unhandled unmerged status %x", d->stagemask);
2250        }
2251
2252        /*
2253         * Disregard d.aux.porcelain_v2 data that we accumulated
2254         * for the head and index columns during the scans and
2255         * replace with the actual stage data.
2256         *
2257         * Note that this is a last-one-wins for each the individual
2258         * stage [123] columns in the event of multiple cache entries
2259         * for same stage.
2260         */
2261        memset(stages, 0, sizeof(stages));
2262        sum = 0;
2263        pos = index_name_pos(istate, it->string, strlen(it->string));
2264        assert(pos < 0);
2265        pos = -pos-1;
2266        while (pos < istate->cache_nr) {
2267                ce = istate->cache[pos++];
2268                stage = ce_stage(ce);
2269                if (strcmp(ce->name, it->string) || !stage)
2270                        break;
2271                stages[stage - 1].mode = ce->ce_mode;
2272                oidcpy(&stages[stage - 1].oid, &ce->oid);
2273                sum |= (1 << (stage - 1));
2274        }
2275        if (sum != d->stagemask)
2276                BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2277
2278        if (s->null_termination)
2279                path_index = it->string;
2280        else
2281                path_index = quote_path(it->string, s->prefix, &buf_index);
2282
2283        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2284                        unmerged_prefix, key, submodule_token,
2285                        stages[0].mode, /* stage 1 */
2286                        stages[1].mode, /* stage 2 */
2287                        stages[2].mode, /* stage 3 */
2288                        d->mode_worktree,
2289                        oid_to_hex(&stages[0].oid), /* stage 1 */
2290                        oid_to_hex(&stages[1].oid), /* stage 2 */
2291                        oid_to_hex(&stages[2].oid), /* stage 3 */
2292                        path_index,
2293                        eol_char);
2294
2295        strbuf_release(&buf_index);
2296}
2297
2298/*
2299 * Print porcelain V2 status info for untracked and ignored entries.
2300 */
2301static void wt_porcelain_v2_print_other(
2302        struct string_list_item *it,
2303        struct wt_status *s,
2304        char prefix)
2305{
2306        struct strbuf buf = STRBUF_INIT;
2307        const char *path;
2308        char eol_char;
2309
2310        if (s->null_termination) {
2311                path = it->string;
2312                eol_char = '\0';
2313        } else {
2314                path = quote_path(it->string, s->prefix, &buf);
2315                eol_char = '\n';
2316        }
2317
2318        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2319
2320        strbuf_release(&buf);
2321}
2322
2323/*
2324 * Print porcelain V2 status.
2325 *
2326 * [<v2_branch>]
2327 * [<v2_changed_items>]*
2328 * [<v2_unmerged_items>]*
2329 * [<v2_untracked_items>]*
2330 * [<v2_ignored_items>]*
2331 *
2332 */
2333static void wt_porcelain_v2_print(struct wt_status *s)
2334{
2335        struct wt_status_change_data *d;
2336        struct string_list_item *it;
2337        int i;
2338
2339        if (s->show_branch)
2340                wt_porcelain_v2_print_tracking(s);
2341
2342        for (i = 0; i < s->change.nr; i++) {
2343                it = &(s->change.items[i]);
2344                d = it->util;
2345                if (!d->stagemask)
2346                        wt_porcelain_v2_print_changed_entry(it, s);
2347        }
2348
2349        for (i = 0; i < s->change.nr; i++) {
2350                it = &(s->change.items[i]);
2351                d = it->util;
2352                if (d->stagemask)
2353                        wt_porcelain_v2_print_unmerged_entry(it, s);
2354        }
2355
2356        for (i = 0; i < s->untracked.nr; i++) {
2357                it = &(s->untracked.items[i]);
2358                wt_porcelain_v2_print_other(it, s, '?');
2359        }
2360
2361        for (i = 0; i < s->ignored.nr; i++) {
2362                it = &(s->ignored.items[i]);
2363                wt_porcelain_v2_print_other(it, s, '!');
2364        }
2365}
2366
2367void wt_status_print(struct wt_status *s)
2368{
2369        trace2_data_intmax("status", s->repo, "count/changed", s->change.nr);
2370        trace2_data_intmax("status", s->repo, "count/untracked",
2371                           s->untracked.nr);
2372        trace2_data_intmax("status", s->repo, "count/ignored", s->ignored.nr);
2373
2374        trace2_region_enter("status", "print", s->repo);
2375
2376        switch (s->status_format) {
2377        case STATUS_FORMAT_SHORT:
2378                wt_shortstatus_print(s);
2379                break;
2380        case STATUS_FORMAT_PORCELAIN:
2381                wt_porcelain_print(s);
2382                break;
2383        case STATUS_FORMAT_PORCELAIN_V2:
2384                wt_porcelain_v2_print(s);
2385                break;
2386        case STATUS_FORMAT_UNSPECIFIED:
2387                BUG("finalize_deferred_config() should have been called");
2388                break;
2389        case STATUS_FORMAT_NONE:
2390        case STATUS_FORMAT_LONG:
2391                wt_longstatus_print(s);
2392                break;
2393        }
2394
2395        trace2_region_leave("status", "print", s->repo);
2396}
2397
2398/**
2399 * Returns 1 if there are unstaged changes, 0 otherwise.
2400 */
2401int has_unstaged_changes(struct repository *r, int ignore_submodules)
2402{
2403        struct rev_info rev_info;
2404        int result;
2405
2406        repo_init_revisions(r, &rev_info, NULL);
2407        if (ignore_submodules) {
2408                rev_info.diffopt.flags.ignore_submodules = 1;
2409                rev_info.diffopt.flags.override_submodule_config = 1;
2410        }
2411        rev_info.diffopt.flags.quick = 1;
2412        diff_setup_done(&rev_info.diffopt);
2413        result = run_diff_files(&rev_info, 0);
2414        return diff_result_code(&rev_info.diffopt, result);
2415}
2416
2417/**
2418 * Returns 1 if there are uncommitted changes, 0 otherwise.
2419 */
2420int has_uncommitted_changes(struct repository *r,
2421                            int ignore_submodules)
2422{
2423        struct rev_info rev_info;
2424        int result;
2425
2426        if (is_index_unborn(r->index))
2427                return 0;
2428
2429        repo_init_revisions(r, &rev_info, NULL);
2430        if (ignore_submodules)
2431                rev_info.diffopt.flags.ignore_submodules = 1;
2432        rev_info.diffopt.flags.quick = 1;
2433
2434        add_head_to_pending(&rev_info);
2435        if (!rev_info.pending.nr) {
2436                /*
2437                 * We have no head (or it's corrupt); use the empty tree,
2438                 * which will complain if the index is non-empty.
2439                 */
2440                struct tree *tree = lookup_tree(r, the_hash_algo->empty_tree);
2441                add_pending_object(&rev_info, &tree->object, "");
2442        }
2443
2444        diff_setup_done(&rev_info.diffopt);
2445        result = run_diff_index(&rev_info, 1);
2446        return diff_result_code(&rev_info.diffopt, result);
2447}
2448
2449/**
2450 * If the work tree has unstaged or uncommitted changes, dies with the
2451 * appropriate message.
2452 */
2453int require_clean_work_tree(struct repository *r,
2454                            const char *action,
2455                            const char *hint,
2456                            int ignore_submodules,
2457                            int gently)
2458{
2459        struct lock_file lock_file = LOCK_INIT;
2460        int err = 0, fd;
2461
2462        fd = repo_hold_locked_index(r, &lock_file, 0);
2463        refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
2464        if (0 <= fd)
2465                repo_update_index_if_able(r, &lock_file);
2466        rollback_lock_file(&lock_file);
2467
2468        if (has_unstaged_changes(r, ignore_submodules)) {
2469                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2470                error(_("cannot %s: You have unstaged changes."), _(action));
2471                err = 1;
2472        }
2473
2474        if (has_uncommitted_changes(r, ignore_submodules)) {
2475                if (err)
2476                        error(_("additionally, your index contains uncommitted changes."));
2477                else
2478                        error(_("cannot %s: Your index contains uncommitted changes."),
2479                              _(action));
2480                err = 1;
2481        }
2482
2483        if (err) {
2484                if (hint)
2485                        error("%s", hint);
2486                if (!gently)
2487                        exit(128);
2488        }
2489
2490        return err;
2491}