wt-status.con commit Merge branch 'jn/hooks-pre-rebase-sample-fix' into maint (309ff91)
   1#include "cache.h"
   2#include "wt-status.h"
   3#include "object.h"
   4#include "dir.h"
   5#include "commit.h"
   6#include "diff.h"
   7#include "revision.h"
   8#include "diffcore.h"
   9#include "quote.h"
  10#include "run-command.h"
  11#include "argv-array.h"
  12#include "remote.h"
  13#include "refs.h"
  14#include "submodule.h"
  15#include "column.h"
  16#include "strbuf.h"
  17#include "utf8.h"
  18#include "worktree.h"
  19#include "lockfile.h"
  20
  21static const char cut_line[] =
  22"------------------------ >8 ------------------------\n";
  23
  24static char default_wt_status_colors[][COLOR_MAXLEN] = {
  25        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  26        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  27        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  28        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  29        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  30        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  31        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  32        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  33        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  34};
  35
  36static const char *color(int slot, struct wt_status *s)
  37{
  38        const char *c = "";
  39        if (want_color(s->use_color))
  40                c = s->color_palette[slot];
  41        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  42                c = s->color_palette[WT_STATUS_HEADER];
  43        return c;
  44}
  45
  46static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  47                const char *fmt, va_list ap, const char *trail)
  48{
  49        struct strbuf sb = STRBUF_INIT;
  50        struct strbuf linebuf = STRBUF_INIT;
  51        const char *line, *eol;
  52
  53        strbuf_vaddf(&sb, fmt, ap);
  54        if (!sb.len) {
  55                if (s->display_comment_prefix) {
  56                        strbuf_addch(&sb, comment_line_char);
  57                        if (!trail)
  58                                strbuf_addch(&sb, ' ');
  59                }
  60                color_print_strbuf(s->fp, color, &sb);
  61                if (trail)
  62                        fprintf(s->fp, "%s", trail);
  63                strbuf_release(&sb);
  64                return;
  65        }
  66        for (line = sb.buf; *line; line = eol + 1) {
  67                eol = strchr(line, '\n');
  68
  69                strbuf_reset(&linebuf);
  70                if (at_bol && s->display_comment_prefix) {
  71                        strbuf_addch(&linebuf, comment_line_char);
  72                        if (*line != '\n' && *line != '\t')
  73                                strbuf_addch(&linebuf, ' ');
  74                }
  75                if (eol)
  76                        strbuf_add(&linebuf, line, eol - line);
  77                else
  78                        strbuf_addstr(&linebuf, line);
  79                color_print_strbuf(s->fp, color, &linebuf);
  80                if (eol)
  81                        fprintf(s->fp, "\n");
  82                else
  83                        break;
  84                at_bol = 1;
  85        }
  86        if (trail)
  87                fprintf(s->fp, "%s", trail);
  88        strbuf_release(&linebuf);
  89        strbuf_release(&sb);
  90}
  91
  92void status_printf_ln(struct wt_status *s, const char *color,
  93                        const char *fmt, ...)
  94{
  95        va_list ap;
  96
  97        va_start(ap, fmt);
  98        status_vprintf(s, 1, color, fmt, ap, "\n");
  99        va_end(ap);
 100}
 101
 102void status_printf(struct wt_status *s, const char *color,
 103                        const char *fmt, ...)
 104{
 105        va_list ap;
 106
 107        va_start(ap, fmt);
 108        status_vprintf(s, 1, color, fmt, ap, NULL);
 109        va_end(ap);
 110}
 111
 112static void status_printf_more(struct wt_status *s, const char *color,
 113                               const char *fmt, ...)
 114{
 115        va_list ap;
 116
 117        va_start(ap, fmt);
 118        status_vprintf(s, 0, color, fmt, ap, NULL);
 119        va_end(ap);
 120}
 121
 122void wt_status_prepare(struct wt_status *s)
 123{
 124        struct object_id oid;
 125
 126        memset(s, 0, sizeof(*s));
 127        memcpy(s->color_palette, default_wt_status_colors,
 128               sizeof(default_wt_status_colors));
 129        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 130        s->use_color = -1;
 131        s->relative_paths = 1;
 132        s->branch = resolve_refdup("HEAD", 0, oid.hash, NULL);
 133        s->reference = "HEAD";
 134        s->fp = stdout;
 135        s->index_file = get_index_file();
 136        s->change.strdup_strings = 1;
 137        s->untracked.strdup_strings = 1;
 138        s->ignored.strdup_strings = 1;
 139        s->show_branch = -1;  /* unspecified */
 140        s->display_comment_prefix = 0;
 141}
 142
 143static void wt_longstatus_print_unmerged_header(struct wt_status *s)
 144{
 145        int i;
 146        int del_mod_conflict = 0;
 147        int both_deleted = 0;
 148        int not_deleted = 0;
 149        const char *c = color(WT_STATUS_HEADER, s);
 150
 151        status_printf_ln(s, c, _("Unmerged paths:"));
 152
 153        for (i = 0; i < s->change.nr; i++) {
 154                struct string_list_item *it = &(s->change.items[i]);
 155                struct wt_status_change_data *d = it->util;
 156
 157                switch (d->stagemask) {
 158                case 0:
 159                        break;
 160                case 1:
 161                        both_deleted = 1;
 162                        break;
 163                case 3:
 164                case 5:
 165                        del_mod_conflict = 1;
 166                        break;
 167                default:
 168                        not_deleted = 1;
 169                        break;
 170                }
 171        }
 172
 173        if (!s->hints)
 174                return;
 175        if (s->whence != FROM_COMMIT)
 176                ;
 177        else if (!s->is_initial)
 178                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 179        else
 180                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 181
 182        if (!both_deleted) {
 183                if (!del_mod_conflict)
 184                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 185                else
 186                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 187        } else if (!del_mod_conflict && !not_deleted) {
 188                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 189        } else {
 190                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 191        }
 192        status_printf_ln(s, c, "%s", "");
 193}
 194
 195static void wt_longstatus_print_cached_header(struct wt_status *s)
 196{
 197        const char *c = color(WT_STATUS_HEADER, s);
 198
 199        status_printf_ln(s, c, _("Changes to be committed:"));
 200        if (!s->hints)
 201                return;
 202        if (s->whence != FROM_COMMIT)
 203                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 204        else if (!s->is_initial)
 205                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 206        else
 207                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 208        status_printf_ln(s, c, "%s", "");
 209}
 210
 211static void wt_longstatus_print_dirty_header(struct wt_status *s,
 212                                             int has_deleted,
 213                                             int has_dirty_submodules)
 214{
 215        const char *c = color(WT_STATUS_HEADER, s);
 216
 217        status_printf_ln(s, c, _("Changes not staged for commit:"));
 218        if (!s->hints)
 219                return;
 220        if (!has_deleted)
 221                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 222        else
 223                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 224        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 225        if (has_dirty_submodules)
 226                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 227        status_printf_ln(s, c, "%s", "");
 228}
 229
 230static void wt_longstatus_print_other_header(struct wt_status *s,
 231                                             const char *what,
 232                                             const char *how)
 233{
 234        const char *c = color(WT_STATUS_HEADER, s);
 235        status_printf_ln(s, c, "%s:", what);
 236        if (!s->hints)
 237                return;
 238        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 239        status_printf_ln(s, c, "%s", "");
 240}
 241
 242static void wt_longstatus_print_trailer(struct wt_status *s)
 243{
 244        status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 245}
 246
 247#define quote_path quote_path_relative
 248
 249static const char *wt_status_unmerged_status_string(int stagemask)
 250{
 251        switch (stagemask) {
 252        case 1:
 253                return _("both deleted:");
 254        case 2:
 255                return _("added by us:");
 256        case 3:
 257                return _("deleted by them:");
 258        case 4:
 259                return _("added by them:");
 260        case 5:
 261                return _("deleted by us:");
 262        case 6:
 263                return _("both added:");
 264        case 7:
 265                return _("both modified:");
 266        default:
 267                die("BUG: unhandled unmerged status %x", stagemask);
 268        }
 269}
 270
 271static const char *wt_status_diff_status_string(int status)
 272{
 273        switch (status) {
 274        case DIFF_STATUS_ADDED:
 275                return _("new file:");
 276        case DIFF_STATUS_COPIED:
 277                return _("copied:");
 278        case DIFF_STATUS_DELETED:
 279                return _("deleted:");
 280        case DIFF_STATUS_MODIFIED:
 281                return _("modified:");
 282        case DIFF_STATUS_RENAMED:
 283                return _("renamed:");
 284        case DIFF_STATUS_TYPE_CHANGED:
 285                return _("typechange:");
 286        case DIFF_STATUS_UNKNOWN:
 287                return _("unknown:");
 288        case DIFF_STATUS_UNMERGED:
 289                return _("unmerged:");
 290        default:
 291                return NULL;
 292        }
 293}
 294
 295static int maxwidth(const char *(*label)(int), int minval, int maxval)
 296{
 297        int result = 0, i;
 298
 299        for (i = minval; i <= maxval; i++) {
 300                const char *s = label(i);
 301                int len = s ? utf8_strwidth(s) : 0;
 302                if (len > result)
 303                        result = len;
 304        }
 305        return result;
 306}
 307
 308static void wt_longstatus_print_unmerged_data(struct wt_status *s,
 309                                              struct string_list_item *it)
 310{
 311        const char *c = color(WT_STATUS_UNMERGED, s);
 312        struct wt_status_change_data *d = it->util;
 313        struct strbuf onebuf = STRBUF_INIT;
 314        static char *padding;
 315        static int label_width;
 316        const char *one, *how;
 317        int len;
 318
 319        if (!padding) {
 320                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 321                label_width += strlen(" ");
 322                padding = xmallocz(label_width);
 323                memset(padding, ' ', label_width);
 324        }
 325
 326        one = quote_path(it->string, s->prefix, &onebuf);
 327        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 328
 329        how = wt_status_unmerged_status_string(d->stagemask);
 330        len = label_width - utf8_strwidth(how);
 331        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 332        strbuf_release(&onebuf);
 333}
 334
 335static void wt_longstatus_print_change_data(struct wt_status *s,
 336                                            int change_type,
 337                                            struct string_list_item *it)
 338{
 339        struct wt_status_change_data *d = it->util;
 340        const char *c = color(change_type, s);
 341        int status;
 342        char *one_name;
 343        char *two_name;
 344        const char *one, *two;
 345        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 346        struct strbuf extra = STRBUF_INIT;
 347        static char *padding;
 348        static int label_width;
 349        const char *what;
 350        int len;
 351
 352        if (!padding) {
 353                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 354                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 355                label_width += strlen(" ");
 356                padding = xmallocz(label_width);
 357                memset(padding, ' ', label_width);
 358        }
 359
 360        one_name = two_name = it->string;
 361        switch (change_type) {
 362        case WT_STATUS_UPDATED:
 363                status = d->index_status;
 364                if (d->head_path)
 365                        one_name = d->head_path;
 366                break;
 367        case WT_STATUS_CHANGED:
 368                if (d->new_submodule_commits || d->dirty_submodule) {
 369                        strbuf_addstr(&extra, " (");
 370                        if (d->new_submodule_commits)
 371                                strbuf_addstr(&extra, _("new commits, "));
 372                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 373                                strbuf_addstr(&extra, _("modified content, "));
 374                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 375                                strbuf_addstr(&extra, _("untracked content, "));
 376                        strbuf_setlen(&extra, extra.len - 2);
 377                        strbuf_addch(&extra, ')');
 378                }
 379                status = d->worktree_status;
 380                break;
 381        default:
 382                die("BUG: unhandled change_type %d in wt_longstatus_print_change_data",
 383                    change_type);
 384        }
 385
 386        one = quote_path(one_name, s->prefix, &onebuf);
 387        two = quote_path(two_name, s->prefix, &twobuf);
 388
 389        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 390        what = wt_status_diff_status_string(status);
 391        if (!what)
 392                die("BUG: unhandled diff status %c", status);
 393        len = label_width - utf8_strwidth(what);
 394        assert(len >= 0);
 395        if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 396                status_printf_more(s, c, "%s%.*s%s -> %s",
 397                                   what, len, padding, one, two);
 398        else
 399                status_printf_more(s, c, "%s%.*s%s",
 400                                   what, len, padding, one);
 401        if (extra.len) {
 402                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 403                strbuf_release(&extra);
 404        }
 405        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 406        strbuf_release(&onebuf);
 407        strbuf_release(&twobuf);
 408}
 409
 410static char short_submodule_status(struct wt_status_change_data *d) {
 411        if (d->new_submodule_commits)
 412                return 'M';
 413        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 414                return 'm';
 415        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 416                return '?';
 417        return d->worktree_status;
 418}
 419
 420static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 421                                         struct diff_options *options,
 422                                         void *data)
 423{
 424        struct wt_status *s = data;
 425        int i;
 426
 427        if (!q->nr)
 428                return;
 429        s->workdir_dirty = 1;
 430        for (i = 0; i < q->nr; i++) {
 431                struct diff_filepair *p;
 432                struct string_list_item *it;
 433                struct wt_status_change_data *d;
 434
 435                p = q->queue[i];
 436                it = string_list_insert(&s->change, p->one->path);
 437                d = it->util;
 438                if (!d) {
 439                        d = xcalloc(1, sizeof(*d));
 440                        it->util = d;
 441                }
 442                if (!d->worktree_status)
 443                        d->worktree_status = p->status;
 444                if (S_ISGITLINK(p->two->mode)) {
 445                        d->dirty_submodule = p->two->dirty_submodule;
 446                        d->new_submodule_commits = !!oidcmp(&p->one->oid,
 447                                                            &p->two->oid);
 448                        if (s->status_format == STATUS_FORMAT_SHORT)
 449                                d->worktree_status = short_submodule_status(d);
 450                }
 451
 452                switch (p->status) {
 453                case DIFF_STATUS_ADDED:
 454                        d->mode_worktree = p->two->mode;
 455                        break;
 456
 457                case DIFF_STATUS_DELETED:
 458                        d->mode_index = p->one->mode;
 459                        oidcpy(&d->oid_index, &p->one->oid);
 460                        /* mode_worktree is zero for a delete. */
 461                        break;
 462
 463                case DIFF_STATUS_MODIFIED:
 464                case DIFF_STATUS_TYPE_CHANGED:
 465                case DIFF_STATUS_UNMERGED:
 466                        d->mode_index = p->one->mode;
 467                        d->mode_worktree = p->two->mode;
 468                        oidcpy(&d->oid_index, &p->one->oid);
 469                        break;
 470
 471                case DIFF_STATUS_UNKNOWN:
 472                        die("BUG: worktree status unknown???");
 473                        break;
 474                }
 475
 476        }
 477}
 478
 479static int unmerged_mask(const char *path)
 480{
 481        int pos, mask;
 482        const struct cache_entry *ce;
 483
 484        pos = cache_name_pos(path, strlen(path));
 485        if (0 <= pos)
 486                return 0;
 487
 488        mask = 0;
 489        pos = -pos-1;
 490        while (pos < active_nr) {
 491                ce = active_cache[pos++];
 492                if (strcmp(ce->name, path) || !ce_stage(ce))
 493                        break;
 494                mask |= (1 << (ce_stage(ce) - 1));
 495        }
 496        return mask;
 497}
 498
 499static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 500                                         struct diff_options *options,
 501                                         void *data)
 502{
 503        struct wt_status *s = data;
 504        int i;
 505
 506        for (i = 0; i < q->nr; i++) {
 507                struct diff_filepair *p;
 508                struct string_list_item *it;
 509                struct wt_status_change_data *d;
 510
 511                p = q->queue[i];
 512                it = string_list_insert(&s->change, p->two->path);
 513                d = it->util;
 514                if (!d) {
 515                        d = xcalloc(1, sizeof(*d));
 516                        it->util = d;
 517                }
 518                if (!d->index_status)
 519                        d->index_status = p->status;
 520                switch (p->status) {
 521                case DIFF_STATUS_ADDED:
 522                        /* Leave {mode,oid}_head zero for an add. */
 523                        d->mode_index = p->two->mode;
 524                        oidcpy(&d->oid_index, &p->two->oid);
 525                        break;
 526                case DIFF_STATUS_DELETED:
 527                        d->mode_head = p->one->mode;
 528                        oidcpy(&d->oid_head, &p->one->oid);
 529                        /* Leave {mode,oid}_index zero for a delete. */
 530                        break;
 531
 532                case DIFF_STATUS_COPIED:
 533                case DIFF_STATUS_RENAMED:
 534                        d->head_path = xstrdup(p->one->path);
 535                        d->score = p->score * 100 / MAX_SCORE;
 536                        /* fallthru */
 537                case DIFF_STATUS_MODIFIED:
 538                case DIFF_STATUS_TYPE_CHANGED:
 539                        d->mode_head = p->one->mode;
 540                        d->mode_index = p->two->mode;
 541                        oidcpy(&d->oid_head, &p->one->oid);
 542                        oidcpy(&d->oid_index, &p->two->oid);
 543                        break;
 544                case DIFF_STATUS_UNMERGED:
 545                        d->stagemask = unmerged_mask(p->two->path);
 546                        /*
 547                         * Don't bother setting {mode,oid}_{head,index} since the print
 548                         * code will output the stage values directly and not use the
 549                         * values in these fields.
 550                         */
 551                        break;
 552                }
 553        }
 554}
 555
 556static void wt_status_collect_changes_worktree(struct wt_status *s)
 557{
 558        struct rev_info rev;
 559
 560        init_revisions(&rev, NULL);
 561        setup_revisions(0, NULL, &rev, NULL);
 562        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 563        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 564        rev.diffopt.ita_invisible_in_index = 1;
 565        if (!s->show_untracked_files)
 566                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 567        if (s->ignore_submodule_arg) {
 568                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 569                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 570        }
 571        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 572        rev.diffopt.format_callback_data = s;
 573        copy_pathspec(&rev.prune_data, &s->pathspec);
 574        run_diff_files(&rev, 0);
 575}
 576
 577static void wt_status_collect_changes_index(struct wt_status *s)
 578{
 579        struct rev_info rev;
 580        struct setup_revision_opt opt;
 581
 582        init_revisions(&rev, NULL);
 583        memset(&opt, 0, sizeof(opt));
 584        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 585        setup_revisions(0, NULL, &rev, &opt);
 586
 587        DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 588        rev.diffopt.ita_invisible_in_index = 1;
 589        if (s->ignore_submodule_arg) {
 590                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 591        } else {
 592                /*
 593                 * Unless the user did explicitly request a submodule ignore
 594                 * mode by passing a command line option we do not ignore any
 595                 * changed submodule SHA-1s when comparing index and HEAD, no
 596                 * matter what is configured. Otherwise the user won't be
 597                 * shown any submodules she manually added (and which are
 598                 * staged to be committed), which would be really confusing.
 599                 */
 600                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 601        }
 602
 603        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 604        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 605        rev.diffopt.format_callback_data = s;
 606        rev.diffopt.detect_rename = 1;
 607        rev.diffopt.rename_limit = 200;
 608        rev.diffopt.break_opt = 0;
 609        copy_pathspec(&rev.prune_data, &s->pathspec);
 610        run_diff_index(&rev, 1);
 611}
 612
 613static void wt_status_collect_changes_initial(struct wt_status *s)
 614{
 615        int i;
 616
 617        for (i = 0; i < active_nr; i++) {
 618                struct string_list_item *it;
 619                struct wt_status_change_data *d;
 620                const struct cache_entry *ce = active_cache[i];
 621
 622                if (!ce_path_match(ce, &s->pathspec, NULL))
 623                        continue;
 624                if (ce_intent_to_add(ce))
 625                        continue;
 626                it = string_list_insert(&s->change, ce->name);
 627                d = it->util;
 628                if (!d) {
 629                        d = xcalloc(1, sizeof(*d));
 630                        it->util = d;
 631                }
 632                if (ce_stage(ce)) {
 633                        d->index_status = DIFF_STATUS_UNMERGED;
 634                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 635                        /*
 636                         * Don't bother setting {mode,oid}_{head,index} since the print
 637                         * code will output the stage values directly and not use the
 638                         * values in these fields.
 639                         */
 640                } else {
 641                        d->index_status = DIFF_STATUS_ADDED;
 642                        /* Leave {mode,oid}_head zero for adds. */
 643                        d->mode_index = ce->ce_mode;
 644                        oidcpy(&d->oid_index, &ce->oid);
 645                }
 646        }
 647}
 648
 649static void wt_status_collect_untracked(struct wt_status *s)
 650{
 651        int i;
 652        struct dir_struct dir;
 653        uint64_t t_begin = getnanotime();
 654
 655        if (!s->show_untracked_files)
 656                return;
 657
 658        memset(&dir, 0, sizeof(dir));
 659        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 660                dir.flags |=
 661                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 662        if (s->show_ignored_files)
 663                dir.flags |= DIR_SHOW_IGNORED_TOO;
 664        else
 665                dir.untracked = the_index.untracked;
 666        setup_standard_excludes(&dir);
 667
 668        fill_directory(&dir, &s->pathspec);
 669
 670        for (i = 0; i < dir.nr; i++) {
 671                struct dir_entry *ent = dir.entries[i];
 672                if (cache_name_is_other(ent->name, ent->len) &&
 673                    dir_path_match(ent, &s->pathspec, 0, NULL))
 674                        string_list_insert(&s->untracked, ent->name);
 675                free(ent);
 676        }
 677
 678        for (i = 0; i < dir.ignored_nr; i++) {
 679                struct dir_entry *ent = dir.ignored[i];
 680                if (cache_name_is_other(ent->name, ent->len) &&
 681                    dir_path_match(ent, &s->pathspec, 0, NULL))
 682                        string_list_insert(&s->ignored, ent->name);
 683                free(ent);
 684        }
 685
 686        free(dir.entries);
 687        free(dir.ignored);
 688        clear_directory(&dir);
 689
 690        if (advice_status_u_option)
 691                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 692}
 693
 694void wt_status_collect(struct wt_status *s)
 695{
 696        wt_status_collect_changes_worktree(s);
 697
 698        if (s->is_initial)
 699                wt_status_collect_changes_initial(s);
 700        else
 701                wt_status_collect_changes_index(s);
 702        wt_status_collect_untracked(s);
 703}
 704
 705static void wt_longstatus_print_unmerged(struct wt_status *s)
 706{
 707        int shown_header = 0;
 708        int i;
 709
 710        for (i = 0; i < s->change.nr; i++) {
 711                struct wt_status_change_data *d;
 712                struct string_list_item *it;
 713                it = &(s->change.items[i]);
 714                d = it->util;
 715                if (!d->stagemask)
 716                        continue;
 717                if (!shown_header) {
 718                        wt_longstatus_print_unmerged_header(s);
 719                        shown_header = 1;
 720                }
 721                wt_longstatus_print_unmerged_data(s, it);
 722        }
 723        if (shown_header)
 724                wt_longstatus_print_trailer(s);
 725
 726}
 727
 728static void wt_longstatus_print_updated(struct wt_status *s)
 729{
 730        int shown_header = 0;
 731        int i;
 732
 733        for (i = 0; i < s->change.nr; i++) {
 734                struct wt_status_change_data *d;
 735                struct string_list_item *it;
 736                it = &(s->change.items[i]);
 737                d = it->util;
 738                if (!d->index_status ||
 739                    d->index_status == DIFF_STATUS_UNMERGED)
 740                        continue;
 741                if (!shown_header) {
 742                        wt_longstatus_print_cached_header(s);
 743                        s->commitable = 1;
 744                        shown_header = 1;
 745                }
 746                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 747        }
 748        if (shown_header)
 749                wt_longstatus_print_trailer(s);
 750}
 751
 752/*
 753 * -1 : has delete
 754 *  0 : no change
 755 *  1 : some change but no delete
 756 */
 757static int wt_status_check_worktree_changes(struct wt_status *s,
 758                                             int *dirty_submodules)
 759{
 760        int i;
 761        int changes = 0;
 762
 763        *dirty_submodules = 0;
 764
 765        for (i = 0; i < s->change.nr; i++) {
 766                struct wt_status_change_data *d;
 767                d = s->change.items[i].util;
 768                if (!d->worktree_status ||
 769                    d->worktree_status == DIFF_STATUS_UNMERGED)
 770                        continue;
 771                if (!changes)
 772                        changes = 1;
 773                if (d->dirty_submodule)
 774                        *dirty_submodules = 1;
 775                if (d->worktree_status == DIFF_STATUS_DELETED)
 776                        changes = -1;
 777        }
 778        return changes;
 779}
 780
 781static void wt_longstatus_print_changed(struct wt_status *s)
 782{
 783        int i, dirty_submodules;
 784        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 785
 786        if (!worktree_changes)
 787                return;
 788
 789        wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 790
 791        for (i = 0; i < s->change.nr; i++) {
 792                struct wt_status_change_data *d;
 793                struct string_list_item *it;
 794                it = &(s->change.items[i]);
 795                d = it->util;
 796                if (!d->worktree_status ||
 797                    d->worktree_status == DIFF_STATUS_UNMERGED)
 798                        continue;
 799                wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 800        }
 801        wt_longstatus_print_trailer(s);
 802}
 803
 804static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 805{
 806        struct child_process sm_summary = CHILD_PROCESS_INIT;
 807        struct strbuf cmd_stdout = STRBUF_INIT;
 808        struct strbuf summary = STRBUF_INIT;
 809        char *summary_content;
 810
 811        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 812                         s->index_file);
 813
 814        argv_array_push(&sm_summary.args, "submodule");
 815        argv_array_push(&sm_summary.args, "summary");
 816        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 817        argv_array_push(&sm_summary.args, "--for-status");
 818        argv_array_push(&sm_summary.args, "--summary-limit");
 819        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 820        if (!uncommitted)
 821                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 822
 823        sm_summary.git_cmd = 1;
 824        sm_summary.no_stdin = 1;
 825
 826        capture_command(&sm_summary, &cmd_stdout, 1024);
 827
 828        /* prepend header, only if there's an actual output */
 829        if (cmd_stdout.len) {
 830                if (uncommitted)
 831                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 832                else
 833                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 834                strbuf_addstr(&summary, "\n\n");
 835        }
 836        strbuf_addbuf(&summary, &cmd_stdout);
 837        strbuf_release(&cmd_stdout);
 838
 839        if (s->display_comment_prefix) {
 840                size_t len;
 841                summary_content = strbuf_detach(&summary, &len);
 842                strbuf_add_commented_lines(&summary, summary_content, len);
 843                free(summary_content);
 844        }
 845
 846        fputs(summary.buf, s->fp);
 847        strbuf_release(&summary);
 848}
 849
 850static void wt_longstatus_print_other(struct wt_status *s,
 851                                      struct string_list *l,
 852                                      const char *what,
 853                                      const char *how)
 854{
 855        int i;
 856        struct strbuf buf = STRBUF_INIT;
 857        static struct string_list output = STRING_LIST_INIT_DUP;
 858        struct column_options copts;
 859
 860        if (!l->nr)
 861                return;
 862
 863        wt_longstatus_print_other_header(s, what, how);
 864
 865        for (i = 0; i < l->nr; i++) {
 866                struct string_list_item *it;
 867                const char *path;
 868                it = &(l->items[i]);
 869                path = quote_path(it->string, s->prefix, &buf);
 870                if (column_active(s->colopts)) {
 871                        string_list_append(&output, path);
 872                        continue;
 873                }
 874                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 875                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 876                                   "%s\n", path);
 877        }
 878
 879        strbuf_release(&buf);
 880        if (!column_active(s->colopts))
 881                goto conclude;
 882
 883        strbuf_addf(&buf, "%s%s\t%s",
 884                    color(WT_STATUS_HEADER, s),
 885                    s->display_comment_prefix ? "#" : "",
 886                    color(WT_STATUS_UNTRACKED, s));
 887        memset(&copts, 0, sizeof(copts));
 888        copts.padding = 1;
 889        copts.indent = buf.buf;
 890        if (want_color(s->use_color))
 891                copts.nl = GIT_COLOR_RESET "\n";
 892        print_columns(&output, s->colopts, &copts);
 893        string_list_clear(&output, 0);
 894        strbuf_release(&buf);
 895conclude:
 896        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 897}
 898
 899size_t wt_status_locate_end(const char *s, size_t len)
 900{
 901        const char *p;
 902        struct strbuf pattern = STRBUF_INIT;
 903
 904        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
 905        if (starts_with(s, pattern.buf + 1))
 906                len = 0;
 907        else if ((p = strstr(s, pattern.buf)))
 908                len = p - s + 1;
 909        strbuf_release(&pattern);
 910        return len;
 911}
 912
 913void wt_status_add_cut_line(FILE *fp)
 914{
 915        const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 916        struct strbuf buf = STRBUF_INIT;
 917
 918        fprintf(fp, "%c %s", comment_line_char, cut_line);
 919        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 920        fputs(buf.buf, fp);
 921        strbuf_release(&buf);
 922}
 923
 924static void wt_longstatus_print_verbose(struct wt_status *s)
 925{
 926        struct rev_info rev;
 927        struct setup_revision_opt opt;
 928        int dirty_submodules;
 929        const char *c = color(WT_STATUS_HEADER, s);
 930
 931        init_revisions(&rev, NULL);
 932        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 933        rev.diffopt.ita_invisible_in_index = 1;
 934
 935        memset(&opt, 0, sizeof(opt));
 936        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 937        setup_revisions(0, NULL, &rev, &opt);
 938
 939        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 940        rev.diffopt.detect_rename = 1;
 941        rev.diffopt.file = s->fp;
 942        rev.diffopt.close_file = 0;
 943        /*
 944         * If we're not going to stdout, then we definitely don't
 945         * want color, since we are going to the commit message
 946         * file (and even the "auto" setting won't work, since it
 947         * will have checked isatty on stdout). But we then do want
 948         * to insert the scissor line here to reliably remove the
 949         * diff before committing.
 950         */
 951        if (s->fp != stdout) {
 952                rev.diffopt.use_color = 0;
 953                wt_status_add_cut_line(s->fp);
 954        }
 955        if (s->verbose > 1 && s->commitable) {
 956                /* print_updated() printed a header, so do we */
 957                if (s->fp != stdout)
 958                        wt_longstatus_print_trailer(s);
 959                status_printf_ln(s, c, _("Changes to be committed:"));
 960                rev.diffopt.a_prefix = "c/";
 961                rev.diffopt.b_prefix = "i/";
 962        } /* else use prefix as per user config */
 963        run_diff_index(&rev, 1);
 964        if (s->verbose > 1 &&
 965            wt_status_check_worktree_changes(s, &dirty_submodules)) {
 966                status_printf_ln(s, c,
 967                        "--------------------------------------------------");
 968                status_printf_ln(s, c, _("Changes not staged for commit:"));
 969                setup_work_tree();
 970                rev.diffopt.a_prefix = "i/";
 971                rev.diffopt.b_prefix = "w/";
 972                run_diff_files(&rev, 0);
 973        }
 974}
 975
 976static void wt_longstatus_print_tracking(struct wt_status *s)
 977{
 978        struct strbuf sb = STRBUF_INIT;
 979        const char *cp, *ep, *branch_name;
 980        struct branch *branch;
 981        char comment_line_string[3];
 982        int i;
 983
 984        assert(s->branch && !s->is_initial);
 985        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
 986                return;
 987        branch = branch_get(branch_name);
 988        if (!format_tracking_info(branch, &sb))
 989                return;
 990
 991        i = 0;
 992        if (s->display_comment_prefix) {
 993                comment_line_string[i++] = comment_line_char;
 994                comment_line_string[i++] = ' ';
 995        }
 996        comment_line_string[i] = '\0';
 997
 998        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 999                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1000                                 "%s%.*s", comment_line_string,
1001                                 (int)(ep - cp), cp);
1002        if (s->display_comment_prefix)
1003                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
1004                                 comment_line_char);
1005        else
1006                fputs("", s->fp);
1007}
1008
1009static int has_unmerged(struct wt_status *s)
1010{
1011        int i;
1012
1013        for (i = 0; i < s->change.nr; i++) {
1014                struct wt_status_change_data *d;
1015                d = s->change.items[i].util;
1016                if (d->stagemask)
1017                        return 1;
1018        }
1019        return 0;
1020}
1021
1022static void show_merge_in_progress(struct wt_status *s,
1023                                struct wt_status_state *state,
1024                                const char *color)
1025{
1026        if (has_unmerged(s)) {
1027                status_printf_ln(s, color, _("You have unmerged paths."));
1028                if (s->hints) {
1029                        status_printf_ln(s, color,
1030                                         _("  (fix conflicts and run \"git commit\")"));
1031                        status_printf_ln(s, color,
1032                                         _("  (use \"git merge --abort\" to abort the merge)"));
1033                }
1034        } else {
1035                s-> commitable = 1;
1036                status_printf_ln(s, color,
1037                        _("All conflicts fixed but you are still merging."));
1038                if (s->hints)
1039                        status_printf_ln(s, color,
1040                                _("  (use \"git commit\" to conclude merge)"));
1041        }
1042        wt_longstatus_print_trailer(s);
1043}
1044
1045static void show_am_in_progress(struct wt_status *s,
1046                                struct wt_status_state *state,
1047                                const char *color)
1048{
1049        status_printf_ln(s, color,
1050                _("You are in the middle of an am session."));
1051        if (state->am_empty_patch)
1052                status_printf_ln(s, color,
1053                        _("The current patch is empty."));
1054        if (s->hints) {
1055                if (!state->am_empty_patch)
1056                        status_printf_ln(s, color,
1057                                _("  (fix conflicts and then run \"git am --continue\")"));
1058                status_printf_ln(s, color,
1059                        _("  (use \"git am --skip\" to skip this patch)"));
1060                status_printf_ln(s, color,
1061                        _("  (use \"git am --abort\" to restore the original branch)"));
1062        }
1063        wt_longstatus_print_trailer(s);
1064}
1065
1066static char *read_line_from_git_path(const char *filename)
1067{
1068        struct strbuf buf = STRBUF_INIT;
1069        FILE *fp = fopen(git_path("%s", filename), "r");
1070        if (!fp) {
1071                strbuf_release(&buf);
1072                return NULL;
1073        }
1074        strbuf_getline_lf(&buf, fp);
1075        if (!fclose(fp)) {
1076                return strbuf_detach(&buf, NULL);
1077        } else {
1078                strbuf_release(&buf);
1079                return NULL;
1080        }
1081}
1082
1083static int split_commit_in_progress(struct wt_status *s)
1084{
1085        int split_in_progress = 0;
1086        char *head, *orig_head, *rebase_amend, *rebase_orig_head;
1087
1088        if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1089            !s->branch || strcmp(s->branch, "HEAD"))
1090                return 0;
1091
1092        head = read_line_from_git_path("HEAD");
1093        orig_head = read_line_from_git_path("ORIG_HEAD");
1094        rebase_amend = read_line_from_git_path("rebase-merge/amend");
1095        rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1096
1097        if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
1098                ; /* fall through, no split in progress */
1099        else if (!strcmp(rebase_amend, rebase_orig_head))
1100                split_in_progress = !!strcmp(head, rebase_amend);
1101        else if (strcmp(orig_head, rebase_orig_head))
1102                split_in_progress = 1;
1103
1104        free(head);
1105        free(orig_head);
1106        free(rebase_amend);
1107        free(rebase_orig_head);
1108
1109        return split_in_progress;
1110}
1111
1112/*
1113 * Turn
1114 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1115 * into
1116 * "pick d6a2f03 some message"
1117 *
1118 * The function assumes that the line does not contain useless spaces
1119 * before or after the command.
1120 */
1121static void abbrev_sha1_in_line(struct strbuf *line)
1122{
1123        struct strbuf **split;
1124        int i;
1125
1126        if (starts_with(line->buf, "exec ") ||
1127            starts_with(line->buf, "x "))
1128                return;
1129
1130        split = strbuf_split_max(line, ' ', 3);
1131        if (split[0] && split[1]) {
1132                struct object_id oid;
1133
1134                /*
1135                 * strbuf_split_max left a space. Trim it and re-add
1136                 * it after abbreviation.
1137                 */
1138                strbuf_trim(split[1]);
1139                if (!get_oid(split[1]->buf, &oid)) {
1140                        strbuf_reset(split[1]);
1141                        strbuf_add_unique_abbrev(split[1], oid.hash,
1142                                                 DEFAULT_ABBREV);
1143                        strbuf_addch(split[1], ' ');
1144                        strbuf_reset(line);
1145                        for (i = 0; split[i]; i++)
1146                                strbuf_addbuf(line, split[i]);
1147                }
1148        }
1149        strbuf_list_free(split);
1150}
1151
1152static int read_rebase_todolist(const char *fname, struct string_list *lines)
1153{
1154        struct strbuf line = STRBUF_INIT;
1155        FILE *f = fopen(git_path("%s", fname), "r");
1156
1157        if (!f) {
1158                if (errno == ENOENT)
1159                        return -1;
1160                die_errno("Could not open file %s for reading",
1161                          git_path("%s", fname));
1162        }
1163        while (!strbuf_getline_lf(&line, f)) {
1164                if (line.len && line.buf[0] == comment_line_char)
1165                        continue;
1166                strbuf_trim(&line);
1167                if (!line.len)
1168                        continue;
1169                abbrev_sha1_in_line(&line);
1170                string_list_append(lines, line.buf);
1171        }
1172        fclose(f);
1173        return 0;
1174}
1175
1176static void show_rebase_information(struct wt_status *s,
1177                                        struct wt_status_state *state,
1178                                        const char *color)
1179{
1180        if (state->rebase_interactive_in_progress) {
1181                int i;
1182                int nr_lines_to_show = 2;
1183
1184                struct string_list have_done = STRING_LIST_INIT_DUP;
1185                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1186
1187                read_rebase_todolist("rebase-merge/done", &have_done);
1188                if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1189                                         &yet_to_do))
1190                        status_printf_ln(s, color,
1191                                _("git-rebase-todo is missing."));
1192                if (have_done.nr == 0)
1193                        status_printf_ln(s, color, _("No commands done."));
1194                else {
1195                        status_printf_ln(s, color,
1196                                Q_("Last command done (%d command done):",
1197                                        "Last commands done (%d commands done):",
1198                                        have_done.nr),
1199                                have_done.nr);
1200                        for (i = (have_done.nr > nr_lines_to_show)
1201                                ? have_done.nr - nr_lines_to_show : 0;
1202                                i < have_done.nr;
1203                                i++)
1204                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1205                        if (have_done.nr > nr_lines_to_show && s->hints)
1206                                status_printf_ln(s, color,
1207                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1208                }
1209
1210                if (yet_to_do.nr == 0)
1211                        status_printf_ln(s, color,
1212                                         _("No commands remaining."));
1213                else {
1214                        status_printf_ln(s, color,
1215                                Q_("Next command to do (%d remaining command):",
1216                                        "Next commands to do (%d remaining commands):",
1217                                        yet_to_do.nr),
1218                                yet_to_do.nr);
1219                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1220                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1221                        if (s->hints)
1222                                status_printf_ln(s, color,
1223                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1224                }
1225                string_list_clear(&yet_to_do, 0);
1226                string_list_clear(&have_done, 0);
1227        }
1228}
1229
1230static void print_rebase_state(struct wt_status *s,
1231                                struct wt_status_state *state,
1232                                const char *color)
1233{
1234        if (state->branch)
1235                status_printf_ln(s, color,
1236                                 _("You are currently rebasing branch '%s' on '%s'."),
1237                                 state->branch,
1238                                 state->onto);
1239        else
1240                status_printf_ln(s, color,
1241                                 _("You are currently rebasing."));
1242}
1243
1244static void show_rebase_in_progress(struct wt_status *s,
1245                                struct wt_status_state *state,
1246                                const char *color)
1247{
1248        struct stat st;
1249
1250        show_rebase_information(s, state, color);
1251        if (has_unmerged(s)) {
1252                print_rebase_state(s, state, color);
1253                if (s->hints) {
1254                        status_printf_ln(s, color,
1255                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1256                        status_printf_ln(s, color,
1257                                _("  (use \"git rebase --skip\" to skip this patch)"));
1258                        status_printf_ln(s, color,
1259                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1260                }
1261        } else if (state->rebase_in_progress || !stat(git_path_merge_msg(), &st)) {
1262                print_rebase_state(s, state, color);
1263                if (s->hints)
1264                        status_printf_ln(s, color,
1265                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1266        } else if (split_commit_in_progress(s)) {
1267                if (state->branch)
1268                        status_printf_ln(s, color,
1269                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1270                                         state->branch,
1271                                         state->onto);
1272                else
1273                        status_printf_ln(s, color,
1274                                         _("You are currently splitting a commit during a rebase."));
1275                if (s->hints)
1276                        status_printf_ln(s, color,
1277                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1278        } else {
1279                if (state->branch)
1280                        status_printf_ln(s, color,
1281                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1282                                         state->branch,
1283                                         state->onto);
1284                else
1285                        status_printf_ln(s, color,
1286                                         _("You are currently editing a commit during a rebase."));
1287                if (s->hints && !s->amend) {
1288                        status_printf_ln(s, color,
1289                                _("  (use \"git commit --amend\" to amend the current commit)"));
1290                        status_printf_ln(s, color,
1291                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1292                }
1293        }
1294        wt_longstatus_print_trailer(s);
1295}
1296
1297static void show_cherry_pick_in_progress(struct wt_status *s,
1298                                        struct wt_status_state *state,
1299                                        const char *color)
1300{
1301        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1302                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1303        if (s->hints) {
1304                if (has_unmerged(s))
1305                        status_printf_ln(s, color,
1306                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1307                else
1308                        status_printf_ln(s, color,
1309                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1310                status_printf_ln(s, color,
1311                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1312        }
1313        wt_longstatus_print_trailer(s);
1314}
1315
1316static void show_revert_in_progress(struct wt_status *s,
1317                                        struct wt_status_state *state,
1318                                        const char *color)
1319{
1320        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1321                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1322        if (s->hints) {
1323                if (has_unmerged(s))
1324                        status_printf_ln(s, color,
1325                                _("  (fix conflicts and run \"git revert --continue\")"));
1326                else
1327                        status_printf_ln(s, color,
1328                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1329                status_printf_ln(s, color,
1330                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1331        }
1332        wt_longstatus_print_trailer(s);
1333}
1334
1335static void show_bisect_in_progress(struct wt_status *s,
1336                                struct wt_status_state *state,
1337                                const char *color)
1338{
1339        if (state->branch)
1340                status_printf_ln(s, color,
1341                                 _("You are currently bisecting, started from branch '%s'."),
1342                                 state->branch);
1343        else
1344                status_printf_ln(s, color,
1345                                 _("You are currently bisecting."));
1346        if (s->hints)
1347                status_printf_ln(s, color,
1348                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1349        wt_longstatus_print_trailer(s);
1350}
1351
1352/*
1353 * Extract branch information from rebase/bisect
1354 */
1355static char *get_branch(const struct worktree *wt, const char *path)
1356{
1357        struct strbuf sb = STRBUF_INIT;
1358        struct object_id oid;
1359        const char *branch_name;
1360
1361        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1362                goto got_nothing;
1363
1364        while (sb.len && sb.buf[sb.len - 1] == '\n')
1365                strbuf_setlen(&sb, sb.len - 1);
1366        if (!sb.len)
1367                goto got_nothing;
1368        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1369                strbuf_remove(&sb, 0, branch_name - sb.buf);
1370        else if (starts_with(sb.buf, "refs/"))
1371                ;
1372        else if (!get_oid_hex(sb.buf, &oid)) {
1373                strbuf_reset(&sb);
1374                strbuf_add_unique_abbrev(&sb, oid.hash, DEFAULT_ABBREV);
1375        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1376                goto got_nothing;
1377        else                    /* bisect */
1378                ;
1379        return strbuf_detach(&sb, NULL);
1380
1381got_nothing:
1382        strbuf_release(&sb);
1383        return NULL;
1384}
1385
1386struct grab_1st_switch_cbdata {
1387        struct strbuf buf;
1388        struct object_id noid;
1389};
1390
1391static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1392                           const char *email, unsigned long timestamp, int tz,
1393                           const char *message, void *cb_data)
1394{
1395        struct grab_1st_switch_cbdata *cb = cb_data;
1396        const char *target = NULL, *end;
1397
1398        if (!skip_prefix(message, "checkout: moving from ", &message))
1399                return 0;
1400        target = strstr(message, " to ");
1401        if (!target)
1402                return 0;
1403        target += strlen(" to ");
1404        strbuf_reset(&cb->buf);
1405        oidcpy(&cb->noid, noid);
1406        end = strchrnul(target, '\n');
1407        strbuf_add(&cb->buf, target, end - target);
1408        if (!strcmp(cb->buf.buf, "HEAD")) {
1409                /* HEAD is relative. Resolve it to the right reflog entry. */
1410                strbuf_reset(&cb->buf);
1411                strbuf_add_unique_abbrev(&cb->buf, noid->hash, DEFAULT_ABBREV);
1412        }
1413        return 1;
1414}
1415
1416static void wt_status_get_detached_from(struct wt_status_state *state)
1417{
1418        struct grab_1st_switch_cbdata cb;
1419        struct commit *commit;
1420        struct object_id oid;
1421        char *ref = NULL;
1422
1423        strbuf_init(&cb.buf, 0);
1424        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1425                strbuf_release(&cb.buf);
1426                return;
1427        }
1428
1429        if (dwim_ref(cb.buf.buf, cb.buf.len, oid.hash, &ref) == 1 &&
1430            /* sha1 is a commit? match without further lookup */
1431            (!oidcmp(&cb.noid, &oid) ||
1432             /* perhaps sha1 is a tag, try to dereference to a commit */
1433             ((commit = lookup_commit_reference_gently(oid.hash, 1)) != NULL &&
1434              !oidcmp(&cb.noid, &commit->object.oid)))) {
1435                const char *from = ref;
1436                if (!skip_prefix(from, "refs/tags/", &from))
1437                        skip_prefix(from, "refs/remotes/", &from);
1438                state->detached_from = xstrdup(from);
1439        } else
1440                state->detached_from =
1441                        xstrdup(find_unique_abbrev(cb.noid.hash, DEFAULT_ABBREV));
1442        hashcpy(state->detached_sha1, cb.noid.hash);
1443        state->detached_at = !get_oid("HEAD", &oid) &&
1444                             !hashcmp(oid.hash, state->detached_sha1);
1445
1446        free(ref);
1447        strbuf_release(&cb.buf);
1448}
1449
1450int wt_status_check_rebase(const struct worktree *wt,
1451                           struct wt_status_state *state)
1452{
1453        struct stat st;
1454
1455        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1456                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1457                        state->am_in_progress = 1;
1458                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1459                                state->am_empty_patch = 1;
1460                } else {
1461                        state->rebase_in_progress = 1;
1462                        state->branch = get_branch(wt, "rebase-apply/head-name");
1463                        state->onto = get_branch(wt, "rebase-apply/onto");
1464                }
1465        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1466                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1467                        state->rebase_interactive_in_progress = 1;
1468                else
1469                        state->rebase_in_progress = 1;
1470                state->branch = get_branch(wt, "rebase-merge/head-name");
1471                state->onto = get_branch(wt, "rebase-merge/onto");
1472        } else
1473                return 0;
1474        return 1;
1475}
1476
1477int wt_status_check_bisect(const struct worktree *wt,
1478                           struct wt_status_state *state)
1479{
1480        struct stat st;
1481
1482        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1483                state->bisect_in_progress = 1;
1484                state->branch = get_branch(wt, "BISECT_START");
1485                return 1;
1486        }
1487        return 0;
1488}
1489
1490void wt_status_get_state(struct wt_status_state *state,
1491                         int get_detached_from)
1492{
1493        struct stat st;
1494        struct object_id oid;
1495
1496        if (!stat(git_path_merge_head(), &st)) {
1497                state->merge_in_progress = 1;
1498        } else if (wt_status_check_rebase(NULL, state)) {
1499                ;               /* all set */
1500        } else if (!stat(git_path_cherry_pick_head(), &st) &&
1501                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
1502                state->cherry_pick_in_progress = 1;
1503                hashcpy(state->cherry_pick_head_sha1, oid.hash);
1504        }
1505        wt_status_check_bisect(NULL, state);
1506        if (!stat(git_path_revert_head(), &st) &&
1507            !get_oid("REVERT_HEAD", &oid)) {
1508                state->revert_in_progress = 1;
1509                hashcpy(state->revert_head_sha1, oid.hash);
1510        }
1511
1512        if (get_detached_from)
1513                wt_status_get_detached_from(state);
1514}
1515
1516static void wt_longstatus_print_state(struct wt_status *s,
1517                                      struct wt_status_state *state)
1518{
1519        const char *state_color = color(WT_STATUS_HEADER, s);
1520        if (state->merge_in_progress)
1521                show_merge_in_progress(s, state, state_color);
1522        else if (state->am_in_progress)
1523                show_am_in_progress(s, state, state_color);
1524        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1525                show_rebase_in_progress(s, state, state_color);
1526        else if (state->cherry_pick_in_progress)
1527                show_cherry_pick_in_progress(s, state, state_color);
1528        else if (state->revert_in_progress)
1529                show_revert_in_progress(s, state, state_color);
1530        if (state->bisect_in_progress)
1531                show_bisect_in_progress(s, state, state_color);
1532}
1533
1534static void wt_longstatus_print(struct wt_status *s)
1535{
1536        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1537        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1538        struct wt_status_state state;
1539
1540        memset(&state, 0, sizeof(state));
1541        wt_status_get_state(&state,
1542                            s->branch && !strcmp(s->branch, "HEAD"));
1543
1544        if (s->branch) {
1545                const char *on_what = _("On branch ");
1546                const char *branch_name = s->branch;
1547                if (!strcmp(branch_name, "HEAD")) {
1548                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1549                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1550                                if (state.rebase_interactive_in_progress)
1551                                        on_what = _("interactive rebase in progress; onto ");
1552                                else
1553                                        on_what = _("rebase in progress; onto ");
1554                                branch_name = state.onto;
1555                        } else if (state.detached_from) {
1556                                branch_name = state.detached_from;
1557                                if (state.detached_at)
1558                                        on_what = _("HEAD detached at ");
1559                                else
1560                                        on_what = _("HEAD detached from ");
1561                        } else {
1562                                branch_name = "";
1563                                on_what = _("Not currently on any branch.");
1564                        }
1565                } else
1566                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1567                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1568                status_printf_more(s, branch_status_color, "%s", on_what);
1569                status_printf_more(s, branch_color, "%s\n", branch_name);
1570                if (!s->is_initial)
1571                        wt_longstatus_print_tracking(s);
1572        }
1573
1574        wt_longstatus_print_state(s, &state);
1575        free(state.branch);
1576        free(state.onto);
1577        free(state.detached_from);
1578
1579        if (s->is_initial) {
1580                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1581                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1582                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1583        }
1584
1585        wt_longstatus_print_updated(s);
1586        wt_longstatus_print_unmerged(s);
1587        wt_longstatus_print_changed(s);
1588        if (s->submodule_summary &&
1589            (!s->ignore_submodule_arg ||
1590             strcmp(s->ignore_submodule_arg, "all"))) {
1591                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1592                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1593        }
1594        if (s->show_untracked_files) {
1595                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1596                if (s->show_ignored_files)
1597                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1598                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1599                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1600                        status_printf_ln(s, GIT_COLOR_NORMAL,
1601                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1602                                           "may speed it up, but you have to be careful not to forget to add\n"
1603                                           "new files yourself (see 'git help status')."),
1604                                         s->untracked_in_ms / 1000.0);
1605                }
1606        } else if (s->commitable)
1607                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1608                        s->hints
1609                        ? _(" (use -u option to show untracked files)") : "");
1610
1611        if (s->verbose)
1612                wt_longstatus_print_verbose(s);
1613        if (!s->commitable) {
1614                if (s->amend)
1615                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1616                else if (s->nowarn)
1617                        ; /* nothing */
1618                else if (s->workdir_dirty) {
1619                        if (s->hints)
1620                                printf(_("no changes added to commit "
1621                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1622                        else
1623                                printf(_("no changes added to commit\n"));
1624                } else if (s->untracked.nr) {
1625                        if (s->hints)
1626                                printf(_("nothing added to commit but untracked files "
1627                                         "present (use \"git add\" to track)\n"));
1628                        else
1629                                printf(_("nothing added to commit but untracked files present\n"));
1630                } else if (s->is_initial) {
1631                        if (s->hints)
1632                                printf(_("nothing to commit (create/copy files "
1633                                         "and use \"git add\" to track)\n"));
1634                        else
1635                                printf(_("nothing to commit\n"));
1636                } else if (!s->show_untracked_files) {
1637                        if (s->hints)
1638                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1639                        else
1640                                printf(_("nothing to commit\n"));
1641                } else
1642                        printf(_("nothing to commit, working tree clean\n"));
1643        }
1644}
1645
1646static void wt_shortstatus_unmerged(struct string_list_item *it,
1647                           struct wt_status *s)
1648{
1649        struct wt_status_change_data *d = it->util;
1650        const char *how = "??";
1651
1652        switch (d->stagemask) {
1653        case 1: how = "DD"; break; /* both deleted */
1654        case 2: how = "AU"; break; /* added by us */
1655        case 3: how = "UD"; break; /* deleted by them */
1656        case 4: how = "UA"; break; /* added by them */
1657        case 5: how = "DU"; break; /* deleted by us */
1658        case 6: how = "AA"; break; /* both added */
1659        case 7: how = "UU"; break; /* both modified */
1660        }
1661        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1662        if (s->null_termination) {
1663                fprintf(stdout, " %s%c", it->string, 0);
1664        } else {
1665                struct strbuf onebuf = STRBUF_INIT;
1666                const char *one;
1667                one = quote_path(it->string, s->prefix, &onebuf);
1668                printf(" %s\n", one);
1669                strbuf_release(&onebuf);
1670        }
1671}
1672
1673static void wt_shortstatus_status(struct string_list_item *it,
1674                         struct wt_status *s)
1675{
1676        struct wt_status_change_data *d = it->util;
1677
1678        if (d->index_status)
1679                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1680        else
1681                putchar(' ');
1682        if (d->worktree_status)
1683                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1684        else
1685                putchar(' ');
1686        putchar(' ');
1687        if (s->null_termination) {
1688                fprintf(stdout, "%s%c", it->string, 0);
1689                if (d->head_path)
1690                        fprintf(stdout, "%s%c", d->head_path, 0);
1691        } else {
1692                struct strbuf onebuf = STRBUF_INIT;
1693                const char *one;
1694                if (d->head_path) {
1695                        one = quote_path(d->head_path, s->prefix, &onebuf);
1696                        if (*one != '"' && strchr(one, ' ') != NULL) {
1697                                putchar('"');
1698                                strbuf_addch(&onebuf, '"');
1699                                one = onebuf.buf;
1700                        }
1701                        printf("%s -> ", one);
1702                        strbuf_release(&onebuf);
1703                }
1704                one = quote_path(it->string, s->prefix, &onebuf);
1705                if (*one != '"' && strchr(one, ' ') != NULL) {
1706                        putchar('"');
1707                        strbuf_addch(&onebuf, '"');
1708                        one = onebuf.buf;
1709                }
1710                printf("%s\n", one);
1711                strbuf_release(&onebuf);
1712        }
1713}
1714
1715static void wt_shortstatus_other(struct string_list_item *it,
1716                                 struct wt_status *s, const char *sign)
1717{
1718        if (s->null_termination) {
1719                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1720        } else {
1721                struct strbuf onebuf = STRBUF_INIT;
1722                const char *one;
1723                one = quote_path(it->string, s->prefix, &onebuf);
1724                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1725                printf(" %s\n", one);
1726                strbuf_release(&onebuf);
1727        }
1728}
1729
1730static void wt_shortstatus_print_tracking(struct wt_status *s)
1731{
1732        struct branch *branch;
1733        const char *header_color = color(WT_STATUS_HEADER, s);
1734        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1735        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1736
1737        const char *base;
1738        const char *branch_name;
1739        int num_ours, num_theirs;
1740        int upstream_is_gone = 0;
1741
1742        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1743
1744        if (!s->branch)
1745                return;
1746        branch_name = s->branch;
1747
1748#define LABEL(string) (s->no_gettext ? (string) : _(string))
1749
1750        if (s->is_initial)
1751                color_fprintf(s->fp, header_color, LABEL(N_("Initial commit on ")));
1752
1753        if (!strcmp(s->branch, "HEAD")) {
1754                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1755                              LABEL(N_("HEAD (no branch)")));
1756                goto conclude;
1757        }
1758
1759        skip_prefix(branch_name, "refs/heads/", &branch_name);
1760
1761        branch = branch_get(branch_name);
1762
1763        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1764
1765        if (stat_tracking_info(branch, &num_ours, &num_theirs, &base) < 0) {
1766                if (!base)
1767                        goto conclude;
1768
1769                upstream_is_gone = 1;
1770        }
1771
1772        base = shorten_unambiguous_ref(base, 0);
1773        color_fprintf(s->fp, header_color, "...");
1774        color_fprintf(s->fp, branch_color_remote, "%s", base);
1775        free((char *)base);
1776
1777        if (!upstream_is_gone && !num_ours && !num_theirs)
1778                goto conclude;
1779
1780        color_fprintf(s->fp, header_color, " [");
1781        if (upstream_is_gone) {
1782                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1783        } else if (!num_ours) {
1784                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1785                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1786        } else if (!num_theirs) {
1787                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1788                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1789        } else {
1790                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1791                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1792                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1793                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1794        }
1795
1796        color_fprintf(s->fp, header_color, "]");
1797 conclude:
1798        fputc(s->null_termination ? '\0' : '\n', s->fp);
1799}
1800
1801static void wt_shortstatus_print(struct wt_status *s)
1802{
1803        struct string_list_item *it;
1804
1805        if (s->show_branch)
1806                wt_shortstatus_print_tracking(s);
1807
1808        for_each_string_list_item(it, &s->change) {
1809                struct wt_status_change_data *d = it->util;
1810
1811                if (d->stagemask)
1812                        wt_shortstatus_unmerged(it, s);
1813                else
1814                        wt_shortstatus_status(it, s);
1815        }
1816        for_each_string_list_item(it, &s->untracked)
1817                wt_shortstatus_other(it, s, "??");
1818
1819        for_each_string_list_item(it, &s->ignored)
1820                wt_shortstatus_other(it, s, "!!");
1821}
1822
1823static void wt_porcelain_print(struct wt_status *s)
1824{
1825        s->use_color = 0;
1826        s->relative_paths = 0;
1827        s->prefix = NULL;
1828        s->no_gettext = 1;
1829        wt_shortstatus_print(s);
1830}
1831
1832/*
1833 * Print branch information for porcelain v2 output.  These lines
1834 * are printed when the '--branch' parameter is given.
1835 *
1836 *    # branch.oid <commit><eol>
1837 *    # branch.head <head><eol>
1838 *   [# branch.upstream <upstream><eol>
1839 *   [# branch.ab +<ahead> -<behind><eol>]]
1840 *
1841 *      <commit> ::= the current commit hash or the the literal
1842 *                   "(initial)" to indicate an initialized repo
1843 *                   with no commits.
1844 *
1845 *        <head> ::= <branch_name> the current branch name or
1846 *                   "(detached)" literal when detached head or
1847 *                   "(unknown)" when something is wrong.
1848 *
1849 *    <upstream> ::= the upstream branch name, when set.
1850 *
1851 *       <ahead> ::= integer ahead value, when upstream set
1852 *                   and the commit is present (not gone).
1853 *
1854 *      <behind> ::= integer behind value, when upstream set
1855 *                   and commit is present.
1856 *
1857 *
1858 * The end-of-line is defined by the -z flag.
1859 *
1860 *                 <eol> ::= NUL when -z,
1861 *                           LF when NOT -z.
1862 *
1863 */
1864static void wt_porcelain_v2_print_tracking(struct wt_status *s)
1865{
1866        struct branch *branch;
1867        const char *base;
1868        const char *branch_name;
1869        struct wt_status_state state;
1870        int ab_info, nr_ahead, nr_behind;
1871        char eol = s->null_termination ? '\0' : '\n';
1872
1873        memset(&state, 0, sizeof(state));
1874        wt_status_get_state(&state, s->branch && !strcmp(s->branch, "HEAD"));
1875
1876        fprintf(s->fp, "# branch.oid %s%c",
1877                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
1878                        eol);
1879
1880        if (!s->branch)
1881                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
1882        else {
1883                if (!strcmp(s->branch, "HEAD")) {
1884                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
1885
1886                        if (state.rebase_in_progress || state.rebase_interactive_in_progress)
1887                                branch_name = state.onto;
1888                        else if (state.detached_from)
1889                                branch_name = state.detached_from;
1890                        else
1891                                branch_name = "";
1892                } else {
1893                        branch_name = NULL;
1894                        skip_prefix(s->branch, "refs/heads/", &branch_name);
1895
1896                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
1897                }
1898
1899                /* Lookup stats on the upstream tracking branch, if set. */
1900                branch = branch_get(branch_name);
1901                base = NULL;
1902                ab_info = (stat_tracking_info(branch, &nr_ahead, &nr_behind, &base) == 0);
1903                if (base) {
1904                        base = shorten_unambiguous_ref(base, 0);
1905                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
1906                        free((char *)base);
1907
1908                        if (ab_info)
1909                                fprintf(s->fp, "# branch.ab +%d -%d%c", nr_ahead, nr_behind, eol);
1910                }
1911        }
1912
1913        free(state.branch);
1914        free(state.onto);
1915        free(state.detached_from);
1916}
1917
1918/*
1919 * Convert various submodule status values into a
1920 * fixed-length string of characters in the buffer provided.
1921 */
1922static void wt_porcelain_v2_submodule_state(
1923        struct wt_status_change_data *d,
1924        char sub[5])
1925{
1926        if (S_ISGITLINK(d->mode_head) ||
1927                S_ISGITLINK(d->mode_index) ||
1928                S_ISGITLINK(d->mode_worktree)) {
1929                sub[0] = 'S';
1930                sub[1] = d->new_submodule_commits ? 'C' : '.';
1931                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
1932                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
1933        } else {
1934                sub[0] = 'N';
1935                sub[1] = '.';
1936                sub[2] = '.';
1937                sub[3] = '.';
1938        }
1939        sub[4] = 0;
1940}
1941
1942/*
1943 * Fix-up changed entries before we print them.
1944 */
1945static void wt_porcelain_v2_fix_up_changed(
1946        struct string_list_item *it,
1947        struct wt_status *s)
1948{
1949        struct wt_status_change_data *d = it->util;
1950
1951        if (!d->index_status) {
1952                /*
1953                 * This entry is unchanged in the index (relative to the head).
1954                 * Therefore, the collect_updated_cb was never called for this
1955                 * entry (during the head-vs-index scan) and so the head column
1956                 * fields were never set.
1957                 *
1958                 * We must have data for the index column (from the
1959                 * index-vs-worktree scan (otherwise, this entry should not be
1960                 * in the list of changes)).
1961                 *
1962                 * Copy index column fields to the head column, so that our
1963                 * output looks complete.
1964                 */
1965                assert(d->mode_head == 0);
1966                d->mode_head = d->mode_index;
1967                oidcpy(&d->oid_head, &d->oid_index);
1968        }
1969
1970        if (!d->worktree_status) {
1971                /*
1972                 * This entry is unchanged in the worktree (relative to the index).
1973                 * Therefore, the collect_changed_cb was never called for this entry
1974                 * (during the index-vs-worktree scan) and so the worktree column
1975                 * fields were never set.
1976                 *
1977                 * We must have data for the index column (from the head-vs-index
1978                 * scan).
1979                 *
1980                 * Copy the index column fields to the worktree column so that
1981                 * our output looks complete.
1982                 *
1983                 * Note that we only have a mode field in the worktree column
1984                 * because the scan code tries really hard to not have to compute it.
1985                 */
1986                assert(d->mode_worktree == 0);
1987                d->mode_worktree = d->mode_index;
1988        }
1989}
1990
1991/*
1992 * Print porcelain v2 info for tracked entries with changes.
1993 */
1994static void wt_porcelain_v2_print_changed_entry(
1995        struct string_list_item *it,
1996        struct wt_status *s)
1997{
1998        struct wt_status_change_data *d = it->util;
1999        struct strbuf buf_index = STRBUF_INIT;
2000        struct strbuf buf_head = STRBUF_INIT;
2001        const char *path_index = NULL;
2002        const char *path_head = NULL;
2003        char key[3];
2004        char submodule_token[5];
2005        char sep_char, eol_char;
2006
2007        wt_porcelain_v2_fix_up_changed(it, s);
2008        wt_porcelain_v2_submodule_state(d, submodule_token);
2009
2010        key[0] = d->index_status ? d->index_status : '.';
2011        key[1] = d->worktree_status ? d->worktree_status : '.';
2012        key[2] = 0;
2013
2014        if (s->null_termination) {
2015                /*
2016                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2017                 * A single NUL character separates them.
2018                 */
2019                sep_char = '\0';
2020                eol_char = '\0';
2021                path_index = it->string;
2022                path_head = d->head_path;
2023        } else {
2024                /*
2025                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2026                 * The source path is only present when necessary.
2027                 * A single TAB separates them (because paths can contain spaces
2028                 * which are not escaped and C-quoting does escape TAB characters).
2029                 */
2030                sep_char = '\t';
2031                eol_char = '\n';
2032                path_index = quote_path(it->string, s->prefix, &buf_index);
2033                if (d->head_path)
2034                        path_head = quote_path(d->head_path, s->prefix, &buf_head);
2035        }
2036
2037        if (path_head)
2038                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2039                                key, submodule_token,
2040                                d->mode_head, d->mode_index, d->mode_worktree,
2041                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2042                                key[0], d->score,
2043                                path_index, sep_char, path_head, eol_char);
2044        else
2045                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2046                                key, submodule_token,
2047                                d->mode_head, d->mode_index, d->mode_worktree,
2048                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2049                                path_index, eol_char);
2050
2051        strbuf_release(&buf_index);
2052        strbuf_release(&buf_head);
2053}
2054
2055/*
2056 * Print porcelain v2 status info for unmerged entries.
2057 */
2058static void wt_porcelain_v2_print_unmerged_entry(
2059        struct string_list_item *it,
2060        struct wt_status *s)
2061{
2062        struct wt_status_change_data *d = it->util;
2063        const struct cache_entry *ce;
2064        struct strbuf buf_index = STRBUF_INIT;
2065        const char *path_index = NULL;
2066        int pos, stage, sum;
2067        struct {
2068                int mode;
2069                struct object_id oid;
2070        } stages[3];
2071        char *key;
2072        char submodule_token[5];
2073        char unmerged_prefix = 'u';
2074        char eol_char = s->null_termination ? '\0' : '\n';
2075
2076        wt_porcelain_v2_submodule_state(d, submodule_token);
2077
2078        switch (d->stagemask) {
2079        case 1: key = "DD"; break; /* both deleted */
2080        case 2: key = "AU"; break; /* added by us */
2081        case 3: key = "UD"; break; /* deleted by them */
2082        case 4: key = "UA"; break; /* added by them */
2083        case 5: key = "DU"; break; /* deleted by us */
2084        case 6: key = "AA"; break; /* both added */
2085        case 7: key = "UU"; break; /* both modified */
2086        default:
2087                die("BUG: unhandled unmerged status %x", d->stagemask);
2088        }
2089
2090        /*
2091         * Disregard d.aux.porcelain_v2 data that we accumulated
2092         * for the head and index columns during the scans and
2093         * replace with the actual stage data.
2094         *
2095         * Note that this is a last-one-wins for each the individual
2096         * stage [123] columns in the event of multiple cache entries
2097         * for same stage.
2098         */
2099        memset(stages, 0, sizeof(stages));
2100        sum = 0;
2101        pos = cache_name_pos(it->string, strlen(it->string));
2102        assert(pos < 0);
2103        pos = -pos-1;
2104        while (pos < active_nr) {
2105                ce = active_cache[pos++];
2106                stage = ce_stage(ce);
2107                if (strcmp(ce->name, it->string) || !stage)
2108                        break;
2109                stages[stage - 1].mode = ce->ce_mode;
2110                oidcpy(&stages[stage - 1].oid, &ce->oid);
2111                sum |= (1 << (stage - 1));
2112        }
2113        if (sum != d->stagemask)
2114                die("BUG: observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2115
2116        if (s->null_termination)
2117                path_index = it->string;
2118        else
2119                path_index = quote_path(it->string, s->prefix, &buf_index);
2120
2121        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2122                        unmerged_prefix, key, submodule_token,
2123                        stages[0].mode, /* stage 1 */
2124                        stages[1].mode, /* stage 2 */
2125                        stages[2].mode, /* stage 3 */
2126                        d->mode_worktree,
2127                        oid_to_hex(&stages[0].oid), /* stage 1 */
2128                        oid_to_hex(&stages[1].oid), /* stage 2 */
2129                        oid_to_hex(&stages[2].oid), /* stage 3 */
2130                        path_index,
2131                        eol_char);
2132
2133        strbuf_release(&buf_index);
2134}
2135
2136/*
2137 * Print porcelain V2 status info for untracked and ignored entries.
2138 */
2139static void wt_porcelain_v2_print_other(
2140        struct string_list_item *it,
2141        struct wt_status *s,
2142        char prefix)
2143{
2144        struct strbuf buf = STRBUF_INIT;
2145        const char *path;
2146        char eol_char;
2147
2148        if (s->null_termination) {
2149                path = it->string;
2150                eol_char = '\0';
2151        } else {
2152                path = quote_path(it->string, s->prefix, &buf);
2153                eol_char = '\n';
2154        }
2155
2156        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2157
2158        strbuf_release(&buf);
2159}
2160
2161/*
2162 * Print porcelain V2 status.
2163 *
2164 * [<v2_branch>]
2165 * [<v2_changed_items>]*
2166 * [<v2_unmerged_items>]*
2167 * [<v2_untracked_items>]*
2168 * [<v2_ignored_items>]*
2169 *
2170 */
2171static void wt_porcelain_v2_print(struct wt_status *s)
2172{
2173        struct wt_status_change_data *d;
2174        struct string_list_item *it;
2175        int i;
2176
2177        if (s->show_branch)
2178                wt_porcelain_v2_print_tracking(s);
2179
2180        for (i = 0; i < s->change.nr; i++) {
2181                it = &(s->change.items[i]);
2182                d = it->util;
2183                if (!d->stagemask)
2184                        wt_porcelain_v2_print_changed_entry(it, s);
2185        }
2186
2187        for (i = 0; i < s->change.nr; i++) {
2188                it = &(s->change.items[i]);
2189                d = it->util;
2190                if (d->stagemask)
2191                        wt_porcelain_v2_print_unmerged_entry(it, s);
2192        }
2193
2194        for (i = 0; i < s->untracked.nr; i++) {
2195                it = &(s->untracked.items[i]);
2196                wt_porcelain_v2_print_other(it, s, '?');
2197        }
2198
2199        for (i = 0; i < s->ignored.nr; i++) {
2200                it = &(s->ignored.items[i]);
2201                wt_porcelain_v2_print_other(it, s, '!');
2202        }
2203}
2204
2205void wt_status_print(struct wt_status *s)
2206{
2207        switch (s->status_format) {
2208        case STATUS_FORMAT_SHORT:
2209                wt_shortstatus_print(s);
2210                break;
2211        case STATUS_FORMAT_PORCELAIN:
2212                wt_porcelain_print(s);
2213                break;
2214        case STATUS_FORMAT_PORCELAIN_V2:
2215                wt_porcelain_v2_print(s);
2216                break;
2217        case STATUS_FORMAT_UNSPECIFIED:
2218                die("BUG: finalize_deferred_config() should have been called");
2219                break;
2220        case STATUS_FORMAT_NONE:
2221        case STATUS_FORMAT_LONG:
2222                wt_longstatus_print(s);
2223                break;
2224        }
2225}
2226
2227/**
2228 * Returns 1 if there are unstaged changes, 0 otherwise.
2229 */
2230int has_unstaged_changes(int ignore_submodules)
2231{
2232        struct rev_info rev_info;
2233        int result;
2234
2235        init_revisions(&rev_info, NULL);
2236        if (ignore_submodules)
2237                DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
2238        DIFF_OPT_SET(&rev_info.diffopt, QUICK);
2239        diff_setup_done(&rev_info.diffopt);
2240        result = run_diff_files(&rev_info, 0);
2241        return diff_result_code(&rev_info.diffopt, result);
2242}
2243
2244/**
2245 * Returns 1 if there are uncommitted changes, 0 otherwise.
2246 */
2247int has_uncommitted_changes(int ignore_submodules)
2248{
2249        struct rev_info rev_info;
2250        int result;
2251
2252        if (is_cache_unborn())
2253                return 0;
2254
2255        init_revisions(&rev_info, NULL);
2256        if (ignore_submodules)
2257                DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
2258        DIFF_OPT_SET(&rev_info.diffopt, QUICK);
2259        add_head_to_pending(&rev_info);
2260        diff_setup_done(&rev_info.diffopt);
2261        result = run_diff_index(&rev_info, 1);
2262        return diff_result_code(&rev_info.diffopt, result);
2263}
2264
2265/**
2266 * If the work tree has unstaged or uncommitted changes, dies with the
2267 * appropriate message.
2268 */
2269int require_clean_work_tree(const char *action, const char *hint, int ignore_submodules, int gently)
2270{
2271        struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
2272        int err = 0, fd;
2273
2274        fd = hold_locked_index(lock_file, 0);
2275        refresh_cache(REFRESH_QUIET);
2276        if (0 <= fd)
2277                update_index_if_able(&the_index, lock_file);
2278        rollback_lock_file(lock_file);
2279
2280        if (has_unstaged_changes(ignore_submodules)) {
2281                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2282                error(_("cannot %s: You have unstaged changes."), _(action));
2283                err = 1;
2284        }
2285
2286        if (has_uncommitted_changes(ignore_submodules)) {
2287                if (err)
2288                        error(_("additionally, your index contains uncommitted changes."));
2289                else
2290                        error(_("cannot %s: Your index contains uncommitted changes."),
2291                              _(action));
2292                err = 1;
2293        }
2294
2295        if (err) {
2296                if (hint)
2297                        error("%s", hint);
2298                if (!gently)
2299                        exit(128);
2300        }
2301
2302        return err;
2303}