wt-status.con commit t5616: refactor packfile replacement (385d1bf)
   1#include "cache.h"
   2#include "wt-status.h"
   3#include "object.h"
   4#include "dir.h"
   5#include "commit.h"
   6#include "diff.h"
   7#include "revision.h"
   8#include "diffcore.h"
   9#include "quote.h"
  10#include "run-command.h"
  11#include "argv-array.h"
  12#include "remote.h"
  13#include "refs.h"
  14#include "submodule.h"
  15#include "column.h"
  16#include "strbuf.h"
  17#include "utf8.h"
  18#include "worktree.h"
  19#include "lockfile.h"
  20#include "sequencer.h"
  21
  22static const char cut_line[] =
  23"------------------------ >8 ------------------------\n";
  24
  25static char default_wt_status_colors[][COLOR_MAXLEN] = {
  26        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  27        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  28        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  29        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  30        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  31        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  32        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  33        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  34        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  35};
  36
  37static const char *color(int slot, struct wt_status *s)
  38{
  39        const char *c = "";
  40        if (want_color(s->use_color))
  41                c = s->color_palette[slot];
  42        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  43                c = s->color_palette[WT_STATUS_HEADER];
  44        return c;
  45}
  46
  47static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  48                const char *fmt, va_list ap, const char *trail)
  49{
  50        struct strbuf sb = STRBUF_INIT;
  51        struct strbuf linebuf = STRBUF_INIT;
  52        const char *line, *eol;
  53
  54        strbuf_vaddf(&sb, fmt, ap);
  55        if (!sb.len) {
  56                if (s->display_comment_prefix) {
  57                        strbuf_addch(&sb, comment_line_char);
  58                        if (!trail)
  59                                strbuf_addch(&sb, ' ');
  60                }
  61                color_print_strbuf(s->fp, color, &sb);
  62                if (trail)
  63                        fprintf(s->fp, "%s", trail);
  64                strbuf_release(&sb);
  65                return;
  66        }
  67        for (line = sb.buf; *line; line = eol + 1) {
  68                eol = strchr(line, '\n');
  69
  70                strbuf_reset(&linebuf);
  71                if (at_bol && s->display_comment_prefix) {
  72                        strbuf_addch(&linebuf, comment_line_char);
  73                        if (*line != '\n' && *line != '\t')
  74                                strbuf_addch(&linebuf, ' ');
  75                }
  76                if (eol)
  77                        strbuf_add(&linebuf, line, eol - line);
  78                else
  79                        strbuf_addstr(&linebuf, line);
  80                color_print_strbuf(s->fp, color, &linebuf);
  81                if (eol)
  82                        fprintf(s->fp, "\n");
  83                else
  84                        break;
  85                at_bol = 1;
  86        }
  87        if (trail)
  88                fprintf(s->fp, "%s", trail);
  89        strbuf_release(&linebuf);
  90        strbuf_release(&sb);
  91}
  92
  93void status_printf_ln(struct wt_status *s, const char *color,
  94                        const char *fmt, ...)
  95{
  96        va_list ap;
  97
  98        va_start(ap, fmt);
  99        status_vprintf(s, 1, color, fmt, ap, "\n");
 100        va_end(ap);
 101}
 102
 103void status_printf(struct wt_status *s, const char *color,
 104                        const char *fmt, ...)
 105{
 106        va_list ap;
 107
 108        va_start(ap, fmt);
 109        status_vprintf(s, 1, color, fmt, ap, NULL);
 110        va_end(ap);
 111}
 112
 113static void status_printf_more(struct wt_status *s, const char *color,
 114                               const char *fmt, ...)
 115{
 116        va_list ap;
 117
 118        va_start(ap, fmt);
 119        status_vprintf(s, 0, color, fmt, ap, NULL);
 120        va_end(ap);
 121}
 122
 123void wt_status_prepare(struct repository *r, struct wt_status *s)
 124{
 125        memset(s, 0, sizeof(*s));
 126        s->repo = r;
 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, NULL, 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->show_stash = 0;
 141        s->ahead_behind_flags = AHEAD_BEHIND_UNSPECIFIED;
 142        s->display_comment_prefix = 0;
 143        s->detect_rename = -1;
 144        s->rename_score = -1;
 145        s->rename_limit = -1;
 146}
 147
 148static void wt_longstatus_print_unmerged_header(struct wt_status *s)
 149{
 150        int i;
 151        int del_mod_conflict = 0;
 152        int both_deleted = 0;
 153        int not_deleted = 0;
 154        const char *c = color(WT_STATUS_HEADER, s);
 155
 156        status_printf_ln(s, c, _("Unmerged paths:"));
 157
 158        for (i = 0; i < s->change.nr; i++) {
 159                struct string_list_item *it = &(s->change.items[i]);
 160                struct wt_status_change_data *d = it->util;
 161
 162                switch (d->stagemask) {
 163                case 0:
 164                        break;
 165                case 1:
 166                        both_deleted = 1;
 167                        break;
 168                case 3:
 169                case 5:
 170                        del_mod_conflict = 1;
 171                        break;
 172                default:
 173                        not_deleted = 1;
 174                        break;
 175                }
 176        }
 177
 178        if (!s->hints)
 179                return;
 180        if (s->whence != FROM_COMMIT)
 181                ;
 182        else if (!s->is_initial)
 183                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 184        else
 185                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 186
 187        if (!both_deleted) {
 188                if (!del_mod_conflict)
 189                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 190                else
 191                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 192        } else if (!del_mod_conflict && !not_deleted) {
 193                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 194        } else {
 195                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 196        }
 197        status_printf_ln(s, c, "%s", "");
 198}
 199
 200static void wt_longstatus_print_cached_header(struct wt_status *s)
 201{
 202        const char *c = color(WT_STATUS_HEADER, s);
 203
 204        status_printf_ln(s, c, _("Changes to be committed:"));
 205        if (!s->hints)
 206                return;
 207        if (s->whence != FROM_COMMIT)
 208                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 209        else if (!s->is_initial)
 210                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 211        else
 212                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 213        status_printf_ln(s, c, "%s", "");
 214}
 215
 216static void wt_longstatus_print_dirty_header(struct wt_status *s,
 217                                             int has_deleted,
 218                                             int has_dirty_submodules)
 219{
 220        const char *c = color(WT_STATUS_HEADER, s);
 221
 222        status_printf_ln(s, c, _("Changes not staged for commit:"));
 223        if (!s->hints)
 224                return;
 225        if (!has_deleted)
 226                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 227        else
 228                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 229        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 230        if (has_dirty_submodules)
 231                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 232        status_printf_ln(s, c, "%s", "");
 233}
 234
 235static void wt_longstatus_print_other_header(struct wt_status *s,
 236                                             const char *what,
 237                                             const char *how)
 238{
 239        const char *c = color(WT_STATUS_HEADER, s);
 240        status_printf_ln(s, c, "%s:", what);
 241        if (!s->hints)
 242                return;
 243        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 244        status_printf_ln(s, c, "%s", "");
 245}
 246
 247static void wt_longstatus_print_trailer(struct wt_status *s)
 248{
 249        status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 250}
 251
 252#define quote_path quote_path_relative
 253
 254static const char *wt_status_unmerged_status_string(int stagemask)
 255{
 256        switch (stagemask) {
 257        case 1:
 258                return _("both deleted:");
 259        case 2:
 260                return _("added by us:");
 261        case 3:
 262                return _("deleted by them:");
 263        case 4:
 264                return _("added by them:");
 265        case 5:
 266                return _("deleted by us:");
 267        case 6:
 268                return _("both added:");
 269        case 7:
 270                return _("both modified:");
 271        default:
 272                BUG("unhandled unmerged status %x", stagemask);
 273        }
 274}
 275
 276static const char *wt_status_diff_status_string(int status)
 277{
 278        switch (status) {
 279        case DIFF_STATUS_ADDED:
 280                return _("new file:");
 281        case DIFF_STATUS_COPIED:
 282                return _("copied:");
 283        case DIFF_STATUS_DELETED:
 284                return _("deleted:");
 285        case DIFF_STATUS_MODIFIED:
 286                return _("modified:");
 287        case DIFF_STATUS_RENAMED:
 288                return _("renamed:");
 289        case DIFF_STATUS_TYPE_CHANGED:
 290                return _("typechange:");
 291        case DIFF_STATUS_UNKNOWN:
 292                return _("unknown:");
 293        case DIFF_STATUS_UNMERGED:
 294                return _("unmerged:");
 295        default:
 296                return NULL;
 297        }
 298}
 299
 300static int maxwidth(const char *(*label)(int), int minval, int maxval)
 301{
 302        int result = 0, i;
 303
 304        for (i = minval; i <= maxval; i++) {
 305                const char *s = label(i);
 306                int len = s ? utf8_strwidth(s) : 0;
 307                if (len > result)
 308                        result = len;
 309        }
 310        return result;
 311}
 312
 313static void wt_longstatus_print_unmerged_data(struct wt_status *s,
 314                                              struct string_list_item *it)
 315{
 316        const char *c = color(WT_STATUS_UNMERGED, s);
 317        struct wt_status_change_data *d = it->util;
 318        struct strbuf onebuf = STRBUF_INIT;
 319        static char *padding;
 320        static int label_width;
 321        const char *one, *how;
 322        int len;
 323
 324        if (!padding) {
 325                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 326                label_width += strlen(" ");
 327                padding = xmallocz(label_width);
 328                memset(padding, ' ', label_width);
 329        }
 330
 331        one = quote_path(it->string, s->prefix, &onebuf);
 332        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 333
 334        how = wt_status_unmerged_status_string(d->stagemask);
 335        len = label_width - utf8_strwidth(how);
 336        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 337        strbuf_release(&onebuf);
 338}
 339
 340static void wt_longstatus_print_change_data(struct wt_status *s,
 341                                            int change_type,
 342                                            struct string_list_item *it)
 343{
 344        struct wt_status_change_data *d = it->util;
 345        const char *c = color(change_type, s);
 346        int status;
 347        char *one_name;
 348        char *two_name;
 349        const char *one, *two;
 350        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 351        struct strbuf extra = STRBUF_INIT;
 352        static char *padding;
 353        static int label_width;
 354        const char *what;
 355        int len;
 356
 357        if (!padding) {
 358                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 359                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 360                label_width += strlen(" ");
 361                padding = xmallocz(label_width);
 362                memset(padding, ' ', label_width);
 363        }
 364
 365        one_name = two_name = it->string;
 366        switch (change_type) {
 367        case WT_STATUS_UPDATED:
 368                status = d->index_status;
 369                break;
 370        case WT_STATUS_CHANGED:
 371                if (d->new_submodule_commits || d->dirty_submodule) {
 372                        strbuf_addstr(&extra, " (");
 373                        if (d->new_submodule_commits)
 374                                strbuf_addstr(&extra, _("new commits, "));
 375                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 376                                strbuf_addstr(&extra, _("modified content, "));
 377                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 378                                strbuf_addstr(&extra, _("untracked content, "));
 379                        strbuf_setlen(&extra, extra.len - 2);
 380                        strbuf_addch(&extra, ')');
 381                }
 382                status = d->worktree_status;
 383                break;
 384        default:
 385                BUG("unhandled change_type %d in wt_longstatus_print_change_data",
 386                    change_type);
 387        }
 388
 389        /*
 390         * Only pick up the rename it's relevant. If the rename is for
 391         * the changed section and we're printing the updated section,
 392         * ignore it.
 393         */
 394        if (d->rename_status == status)
 395                one_name = d->rename_source;
 396
 397        one = quote_path(one_name, s->prefix, &onebuf);
 398        two = quote_path(two_name, s->prefix, &twobuf);
 399
 400        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 401        what = wt_status_diff_status_string(status);
 402        if (!what)
 403                BUG("unhandled diff status %c", status);
 404        len = label_width - utf8_strwidth(what);
 405        assert(len >= 0);
 406        if (one_name != two_name)
 407                status_printf_more(s, c, "%s%.*s%s -> %s",
 408                                   what, len, padding, one, two);
 409        else
 410                status_printf_more(s, c, "%s%.*s%s",
 411                                   what, len, padding, one);
 412        if (extra.len) {
 413                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 414                strbuf_release(&extra);
 415        }
 416        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 417        strbuf_release(&onebuf);
 418        strbuf_release(&twobuf);
 419}
 420
 421static char short_submodule_status(struct wt_status_change_data *d)
 422{
 423        if (d->new_submodule_commits)
 424                return 'M';
 425        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 426                return 'm';
 427        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 428                return '?';
 429        return d->worktree_status;
 430}
 431
 432static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 433                                         struct diff_options *options,
 434                                         void *data)
 435{
 436        struct wt_status *s = data;
 437        int i;
 438
 439        if (!q->nr)
 440                return;
 441        s->workdir_dirty = 1;
 442        for (i = 0; i < q->nr; i++) {
 443                struct diff_filepair *p;
 444                struct string_list_item *it;
 445                struct wt_status_change_data *d;
 446
 447                p = q->queue[i];
 448                it = string_list_insert(&s->change, p->two->path);
 449                d = it->util;
 450                if (!d) {
 451                        d = xcalloc(1, sizeof(*d));
 452                        it->util = d;
 453                }
 454                if (!d->worktree_status)
 455                        d->worktree_status = p->status;
 456                if (S_ISGITLINK(p->two->mode)) {
 457                        d->dirty_submodule = p->two->dirty_submodule;
 458                        d->new_submodule_commits = !oideq(&p->one->oid,
 459                                                          &p->two->oid);
 460                        if (s->status_format == STATUS_FORMAT_SHORT)
 461                                d->worktree_status = short_submodule_status(d);
 462                }
 463
 464                switch (p->status) {
 465                case DIFF_STATUS_ADDED:
 466                        d->mode_worktree = p->two->mode;
 467                        break;
 468
 469                case DIFF_STATUS_DELETED:
 470                        d->mode_index = p->one->mode;
 471                        oidcpy(&d->oid_index, &p->one->oid);
 472                        /* mode_worktree is zero for a delete. */
 473                        break;
 474
 475                case DIFF_STATUS_COPIED:
 476                case DIFF_STATUS_RENAMED:
 477                        if (d->rename_status)
 478                                BUG("multiple renames on the same target? how?");
 479                        d->rename_source = xstrdup(p->one->path);
 480                        d->rename_score = p->score * 100 / MAX_SCORE;
 481                        d->rename_status = p->status;
 482                        /* fallthru */
 483                case DIFF_STATUS_MODIFIED:
 484                case DIFF_STATUS_TYPE_CHANGED:
 485                case DIFF_STATUS_UNMERGED:
 486                        d->mode_index = p->one->mode;
 487                        d->mode_worktree = p->two->mode;
 488                        oidcpy(&d->oid_index, &p->one->oid);
 489                        break;
 490
 491                default:
 492                        BUG("unhandled diff-files status '%c'", p->status);
 493                        break;
 494                }
 495
 496        }
 497}
 498
 499static int unmerged_mask(struct index_state *istate, const char *path)
 500{
 501        int pos, mask;
 502        const struct cache_entry *ce;
 503
 504        pos = index_name_pos(istate, path, strlen(path));
 505        if (0 <= pos)
 506                return 0;
 507
 508        mask = 0;
 509        pos = -pos-1;
 510        while (pos < istate->cache_nr) {
 511                ce = istate->cache[pos++];
 512                if (strcmp(ce->name, path) || !ce_stage(ce))
 513                        break;
 514                mask |= (1 << (ce_stage(ce) - 1));
 515        }
 516        return mask;
 517}
 518
 519static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 520                                         struct diff_options *options,
 521                                         void *data)
 522{
 523        struct wt_status *s = data;
 524        int i;
 525
 526        for (i = 0; i < q->nr; i++) {
 527                struct diff_filepair *p;
 528                struct string_list_item *it;
 529                struct wt_status_change_data *d;
 530
 531                p = q->queue[i];
 532                it = string_list_insert(&s->change, p->two->path);
 533                d = it->util;
 534                if (!d) {
 535                        d = xcalloc(1, sizeof(*d));
 536                        it->util = d;
 537                }
 538                if (!d->index_status)
 539                        d->index_status = p->status;
 540                switch (p->status) {
 541                case DIFF_STATUS_ADDED:
 542                        /* Leave {mode,oid}_head zero for an add. */
 543                        d->mode_index = p->two->mode;
 544                        oidcpy(&d->oid_index, &p->two->oid);
 545                        s->committable = 1;
 546                        break;
 547                case DIFF_STATUS_DELETED:
 548                        d->mode_head = p->one->mode;
 549                        oidcpy(&d->oid_head, &p->one->oid);
 550                        s->committable = 1;
 551                        /* Leave {mode,oid}_index zero for a delete. */
 552                        break;
 553
 554                case DIFF_STATUS_COPIED:
 555                case DIFF_STATUS_RENAMED:
 556                        if (d->rename_status)
 557                                BUG("multiple renames on the same target? how?");
 558                        d->rename_source = xstrdup(p->one->path);
 559                        d->rename_score = p->score * 100 / MAX_SCORE;
 560                        d->rename_status = p->status;
 561                        /* fallthru */
 562                case DIFF_STATUS_MODIFIED:
 563                case DIFF_STATUS_TYPE_CHANGED:
 564                        d->mode_head = p->one->mode;
 565                        d->mode_index = p->two->mode;
 566                        oidcpy(&d->oid_head, &p->one->oid);
 567                        oidcpy(&d->oid_index, &p->two->oid);
 568                        s->committable = 1;
 569                        break;
 570                case DIFF_STATUS_UNMERGED:
 571                        d->stagemask = unmerged_mask(s->repo->index,
 572                                                     p->two->path);
 573                        /*
 574                         * Don't bother setting {mode,oid}_{head,index} since the print
 575                         * code will output the stage values directly and not use the
 576                         * values in these fields.
 577                         */
 578                        break;
 579
 580                default:
 581                        BUG("unhandled diff-index status '%c'", p->status);
 582                        break;
 583                }
 584        }
 585}
 586
 587static void wt_status_collect_changes_worktree(struct wt_status *s)
 588{
 589        struct rev_info rev;
 590
 591        repo_init_revisions(s->repo, &rev, NULL);
 592        setup_revisions(0, NULL, &rev, NULL);
 593        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 594        rev.diffopt.flags.dirty_submodules = 1;
 595        rev.diffopt.ita_invisible_in_index = 1;
 596        if (!s->show_untracked_files)
 597                rev.diffopt.flags.ignore_untracked_in_submodules = 1;
 598        if (s->ignore_submodule_arg) {
 599                rev.diffopt.flags.override_submodule_config = 1;
 600                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 601        }
 602        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 603        rev.diffopt.format_callback_data = s;
 604        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 605        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 606        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 607        copy_pathspec(&rev.prune_data, &s->pathspec);
 608        run_diff_files(&rev, 0);
 609}
 610
 611static void wt_status_collect_changes_index(struct wt_status *s)
 612{
 613        struct rev_info rev;
 614        struct setup_revision_opt opt;
 615
 616        repo_init_revisions(s->repo, &rev, NULL);
 617        memset(&opt, 0, sizeof(opt));
 618        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
 619        setup_revisions(0, NULL, &rev, &opt);
 620
 621        rev.diffopt.flags.override_submodule_config = 1;
 622        rev.diffopt.ita_invisible_in_index = 1;
 623        if (s->ignore_submodule_arg) {
 624                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 625        } else {
 626                /*
 627                 * Unless the user did explicitly request a submodule ignore
 628                 * mode by passing a command line option we do not ignore any
 629                 * changed submodule SHA-1s when comparing index and HEAD, no
 630                 * matter what is configured. Otherwise the user won't be
 631                 * shown any submodules she manually added (and which are
 632                 * staged to be committed), which would be really confusing.
 633                 */
 634                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 635        }
 636
 637        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 638        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 639        rev.diffopt.format_callback_data = s;
 640        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
 641        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
 642        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
 643        copy_pathspec(&rev.prune_data, &s->pathspec);
 644        run_diff_index(&rev, 1);
 645}
 646
 647static void wt_status_collect_changes_initial(struct wt_status *s)
 648{
 649        struct index_state *istate = s->repo->index;
 650        int i;
 651
 652        for (i = 0; i < istate->cache_nr; i++) {
 653                struct string_list_item *it;
 654                struct wt_status_change_data *d;
 655                const struct cache_entry *ce = istate->cache[i];
 656
 657                if (!ce_path_match(istate, ce, &s->pathspec, NULL))
 658                        continue;
 659                if (ce_intent_to_add(ce))
 660                        continue;
 661                it = string_list_insert(&s->change, ce->name);
 662                d = it->util;
 663                if (!d) {
 664                        d = xcalloc(1, sizeof(*d));
 665                        it->util = d;
 666                }
 667                if (ce_stage(ce)) {
 668                        d->index_status = DIFF_STATUS_UNMERGED;
 669                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 670                        /*
 671                         * Don't bother setting {mode,oid}_{head,index} since the print
 672                         * code will output the stage values directly and not use the
 673                         * values in these fields.
 674                         */
 675                        s->committable = 1;
 676                } else {
 677                        d->index_status = DIFF_STATUS_ADDED;
 678                        /* Leave {mode,oid}_head zero for adds. */
 679                        d->mode_index = ce->ce_mode;
 680                        oidcpy(&d->oid_index, &ce->oid);
 681                        s->committable = 1;
 682                }
 683        }
 684}
 685
 686static void wt_status_collect_untracked(struct wt_status *s)
 687{
 688        int i;
 689        struct dir_struct dir;
 690        uint64_t t_begin = getnanotime();
 691        struct index_state *istate = s->repo->index;
 692
 693        if (!s->show_untracked_files)
 694                return;
 695
 696        memset(&dir, 0, sizeof(dir));
 697        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 698                dir.flags |=
 699                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 700        if (s->show_ignored_mode) {
 701                dir.flags |= DIR_SHOW_IGNORED_TOO;
 702
 703                if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
 704                        dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
 705        } else {
 706                dir.untracked = istate->untracked;
 707        }
 708
 709        setup_standard_excludes(&dir);
 710
 711        fill_directory(&dir, istate, &s->pathspec);
 712
 713        for (i = 0; i < dir.nr; i++) {
 714                struct dir_entry *ent = dir.entries[i];
 715                if (index_name_is_other(istate, ent->name, ent->len) &&
 716                    dir_path_match(istate, ent, &s->pathspec, 0, NULL))
 717                        string_list_insert(&s->untracked, ent->name);
 718                free(ent);
 719        }
 720
 721        for (i = 0; i < dir.ignored_nr; i++) {
 722                struct dir_entry *ent = dir.ignored[i];
 723                if (index_name_is_other(istate, ent->name, ent->len) &&
 724                    dir_path_match(istate, ent, &s->pathspec, 0, NULL))
 725                        string_list_insert(&s->ignored, ent->name);
 726                free(ent);
 727        }
 728
 729        free(dir.entries);
 730        free(dir.ignored);
 731        clear_directory(&dir);
 732
 733        if (advice_status_u_option)
 734                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 735}
 736
 737static int has_unmerged(struct wt_status *s)
 738{
 739        int i;
 740
 741        for (i = 0; i < s->change.nr; i++) {
 742                struct wt_status_change_data *d;
 743                d = s->change.items[i].util;
 744                if (d->stagemask)
 745                        return 1;
 746        }
 747        return 0;
 748}
 749
 750void wt_status_collect(struct wt_status *s)
 751{
 752        trace2_region_enter("status", "worktrees", s->repo);
 753        wt_status_collect_changes_worktree(s);
 754        trace2_region_leave("status", "worktrees", s->repo);
 755
 756        if (s->is_initial) {
 757                trace2_region_enter("status", "initial", s->repo);
 758                wt_status_collect_changes_initial(s);
 759                trace2_region_leave("status", "initial", s->repo);
 760        } else {
 761                trace2_region_enter("status", "index", s->repo);
 762                wt_status_collect_changes_index(s);
 763                trace2_region_leave("status", "index", s->repo);
 764        }
 765
 766        trace2_region_enter("status", "untracked", s->repo);
 767        wt_status_collect_untracked(s);
 768        trace2_region_leave("status", "untracked", s->repo);
 769
 770        wt_status_get_state(s->repo, &s->state, s->branch && !strcmp(s->branch, "HEAD"));
 771        if (s->state.merge_in_progress && !has_unmerged(s))
 772                s->committable = 1;
 773}
 774
 775void wt_status_collect_free_buffers(struct wt_status *s)
 776{
 777        free(s->state.branch);
 778        free(s->state.onto);
 779        free(s->state.detached_from);
 780}
 781
 782static void wt_longstatus_print_unmerged(struct wt_status *s)
 783{
 784        int shown_header = 0;
 785        int i;
 786
 787        for (i = 0; i < s->change.nr; i++) {
 788                struct wt_status_change_data *d;
 789                struct string_list_item *it;
 790                it = &(s->change.items[i]);
 791                d = it->util;
 792                if (!d->stagemask)
 793                        continue;
 794                if (!shown_header) {
 795                        wt_longstatus_print_unmerged_header(s);
 796                        shown_header = 1;
 797                }
 798                wt_longstatus_print_unmerged_data(s, it);
 799        }
 800        if (shown_header)
 801                wt_longstatus_print_trailer(s);
 802
 803}
 804
 805static void wt_longstatus_print_updated(struct wt_status *s)
 806{
 807        int shown_header = 0;
 808        int i;
 809
 810        for (i = 0; i < s->change.nr; i++) {
 811                struct wt_status_change_data *d;
 812                struct string_list_item *it;
 813                it = &(s->change.items[i]);
 814                d = it->util;
 815                if (!d->index_status ||
 816                    d->index_status == DIFF_STATUS_UNMERGED)
 817                        continue;
 818                if (!shown_header) {
 819                        wt_longstatus_print_cached_header(s);
 820                        shown_header = 1;
 821                }
 822                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 823        }
 824        if (shown_header)
 825                wt_longstatus_print_trailer(s);
 826}
 827
 828/*
 829 * -1 : has delete
 830 *  0 : no change
 831 *  1 : some change but no delete
 832 */
 833static int wt_status_check_worktree_changes(struct wt_status *s,
 834                                             int *dirty_submodules)
 835{
 836        int i;
 837        int changes = 0;
 838
 839        *dirty_submodules = 0;
 840
 841        for (i = 0; i < s->change.nr; i++) {
 842                struct wt_status_change_data *d;
 843                d = s->change.items[i].util;
 844                if (!d->worktree_status ||
 845                    d->worktree_status == DIFF_STATUS_UNMERGED)
 846                        continue;
 847                if (!changes)
 848                        changes = 1;
 849                if (d->dirty_submodule)
 850                        *dirty_submodules = 1;
 851                if (d->worktree_status == DIFF_STATUS_DELETED)
 852                        changes = -1;
 853        }
 854        return changes;
 855}
 856
 857static void wt_longstatus_print_changed(struct wt_status *s)
 858{
 859        int i, dirty_submodules;
 860        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 861
 862        if (!worktree_changes)
 863                return;
 864
 865        wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 866
 867        for (i = 0; i < s->change.nr; i++) {
 868                struct wt_status_change_data *d;
 869                struct string_list_item *it;
 870                it = &(s->change.items[i]);
 871                d = it->util;
 872                if (!d->worktree_status ||
 873                    d->worktree_status == DIFF_STATUS_UNMERGED)
 874                        continue;
 875                wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 876        }
 877        wt_longstatus_print_trailer(s);
 878}
 879
 880static int stash_count_refs(struct object_id *ooid, struct object_id *noid,
 881                            const char *email, timestamp_t timestamp, int tz,
 882                            const char *message, void *cb_data)
 883{
 884        int *c = cb_data;
 885        (*c)++;
 886        return 0;
 887}
 888
 889static void wt_longstatus_print_stash_summary(struct wt_status *s)
 890{
 891        int stash_count = 0;
 892
 893        for_each_reflog_ent("refs/stash", stash_count_refs, &stash_count);
 894        if (stash_count > 0)
 895                status_printf_ln(s, GIT_COLOR_NORMAL,
 896                                 Q_("Your stash currently has %d entry",
 897                                    "Your stash currently has %d entries", stash_count),
 898                                 stash_count);
 899}
 900
 901static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 902{
 903        struct child_process sm_summary = CHILD_PROCESS_INIT;
 904        struct strbuf cmd_stdout = STRBUF_INIT;
 905        struct strbuf summary = STRBUF_INIT;
 906        char *summary_content;
 907
 908        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 909                         s->index_file);
 910
 911        argv_array_push(&sm_summary.args, "submodule");
 912        argv_array_push(&sm_summary.args, "summary");
 913        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 914        argv_array_push(&sm_summary.args, "--for-status");
 915        argv_array_push(&sm_summary.args, "--summary-limit");
 916        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 917        if (!uncommitted)
 918                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 919
 920        sm_summary.git_cmd = 1;
 921        sm_summary.no_stdin = 1;
 922
 923        capture_command(&sm_summary, &cmd_stdout, 1024);
 924
 925        /* prepend header, only if there's an actual output */
 926        if (cmd_stdout.len) {
 927                if (uncommitted)
 928                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 929                else
 930                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 931                strbuf_addstr(&summary, "\n\n");
 932        }
 933        strbuf_addbuf(&summary, &cmd_stdout);
 934        strbuf_release(&cmd_stdout);
 935
 936        if (s->display_comment_prefix) {
 937                size_t len;
 938                summary_content = strbuf_detach(&summary, &len);
 939                strbuf_add_commented_lines(&summary, summary_content, len);
 940                free(summary_content);
 941        }
 942
 943        fputs(summary.buf, s->fp);
 944        strbuf_release(&summary);
 945}
 946
 947static void wt_longstatus_print_other(struct wt_status *s,
 948                                      struct string_list *l,
 949                                      const char *what,
 950                                      const char *how)
 951{
 952        int i;
 953        struct strbuf buf = STRBUF_INIT;
 954        static struct string_list output = STRING_LIST_INIT_DUP;
 955        struct column_options copts;
 956
 957        if (!l->nr)
 958                return;
 959
 960        wt_longstatus_print_other_header(s, what, how);
 961
 962        for (i = 0; i < l->nr; i++) {
 963                struct string_list_item *it;
 964                const char *path;
 965                it = &(l->items[i]);
 966                path = quote_path(it->string, s->prefix, &buf);
 967                if (column_active(s->colopts)) {
 968                        string_list_append(&output, path);
 969                        continue;
 970                }
 971                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 972                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 973                                   "%s\n", path);
 974        }
 975
 976        strbuf_release(&buf);
 977        if (!column_active(s->colopts))
 978                goto conclude;
 979
 980        strbuf_addf(&buf, "%s%s\t%s",
 981                    color(WT_STATUS_HEADER, s),
 982                    s->display_comment_prefix ? "#" : "",
 983                    color(WT_STATUS_UNTRACKED, s));
 984        memset(&copts, 0, sizeof(copts));
 985        copts.padding = 1;
 986        copts.indent = buf.buf;
 987        if (want_color(s->use_color))
 988                copts.nl = GIT_COLOR_RESET "\n";
 989        print_columns(&output, s->colopts, &copts);
 990        string_list_clear(&output, 0);
 991        strbuf_release(&buf);
 992conclude:
 993        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 994}
 995
 996size_t wt_status_locate_end(const char *s, size_t len)
 997{
 998        const char *p;
 999        struct strbuf pattern = STRBUF_INIT;
1000
1001        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
1002        if (starts_with(s, pattern.buf + 1))
1003                len = 0;
1004        else if ((p = strstr(s, pattern.buf)))
1005                len = p - s + 1;
1006        strbuf_release(&pattern);
1007        return len;
1008}
1009
1010void wt_status_append_cut_line(struct strbuf *buf)
1011{
1012        const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
1013
1014        strbuf_commented_addf(buf, "%s", cut_line);
1015        strbuf_add_commented_lines(buf, explanation, strlen(explanation));
1016}
1017
1018void wt_status_add_cut_line(FILE *fp)
1019{
1020        struct strbuf buf = STRBUF_INIT;
1021
1022        wt_status_append_cut_line(&buf);
1023        fputs(buf.buf, fp);
1024        strbuf_release(&buf);
1025}
1026
1027static void wt_longstatus_print_verbose(struct wt_status *s)
1028{
1029        struct rev_info rev;
1030        struct setup_revision_opt opt;
1031        int dirty_submodules;
1032        const char *c = color(WT_STATUS_HEADER, s);
1033
1034        repo_init_revisions(s->repo, &rev, NULL);
1035        rev.diffopt.flags.allow_textconv = 1;
1036        rev.diffopt.ita_invisible_in_index = 1;
1037
1038        memset(&opt, 0, sizeof(opt));
1039        opt.def = s->is_initial ? empty_tree_oid_hex() : s->reference;
1040        setup_revisions(0, NULL, &rev, &opt);
1041
1042        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
1043        rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
1044        rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
1045        rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
1046        rev.diffopt.file = s->fp;
1047        rev.diffopt.close_file = 0;
1048        /*
1049         * If we're not going to stdout, then we definitely don't
1050         * want color, since we are going to the commit message
1051         * file (and even the "auto" setting won't work, since it
1052         * will have checked isatty on stdout). But we then do want
1053         * to insert the scissor line here to reliably remove the
1054         * diff before committing.
1055         */
1056        if (s->fp != stdout) {
1057                rev.diffopt.use_color = 0;
1058                wt_status_add_cut_line(s->fp);
1059        }
1060        if (s->verbose > 1 && s->committable) {
1061                /* print_updated() printed a header, so do we */
1062                if (s->fp != stdout)
1063                        wt_longstatus_print_trailer(s);
1064                status_printf_ln(s, c, _("Changes to be committed:"));
1065                rev.diffopt.a_prefix = "c/";
1066                rev.diffopt.b_prefix = "i/";
1067        } /* else use prefix as per user config */
1068        run_diff_index(&rev, 1);
1069        if (s->verbose > 1 &&
1070            wt_status_check_worktree_changes(s, &dirty_submodules)) {
1071                status_printf_ln(s, c,
1072                        "--------------------------------------------------");
1073                status_printf_ln(s, c, _("Changes not staged for commit:"));
1074                setup_work_tree();
1075                rev.diffopt.a_prefix = "i/";
1076                rev.diffopt.b_prefix = "w/";
1077                run_diff_files(&rev, 0);
1078        }
1079}
1080
1081static void wt_longstatus_print_tracking(struct wt_status *s)
1082{
1083        struct strbuf sb = STRBUF_INIT;
1084        const char *cp, *ep, *branch_name;
1085        struct branch *branch;
1086        char comment_line_string[3];
1087        int i;
1088
1089        assert(s->branch && !s->is_initial);
1090        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
1091                return;
1092        branch = branch_get(branch_name);
1093        if (!format_tracking_info(branch, &sb, s->ahead_behind_flags))
1094                return;
1095
1096        i = 0;
1097        if (s->display_comment_prefix) {
1098                comment_line_string[i++] = comment_line_char;
1099                comment_line_string[i++] = ' ';
1100        }
1101        comment_line_string[i] = '\0';
1102
1103        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
1104                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1105                                 "%s%.*s", comment_line_string,
1106                                 (int)(ep - cp), cp);
1107        if (s->display_comment_prefix)
1108                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
1109                                 comment_line_char);
1110        else
1111                fputs("\n", s->fp);
1112        strbuf_release(&sb);
1113}
1114
1115static void show_merge_in_progress(struct wt_status *s,
1116                                   const char *color)
1117{
1118        if (has_unmerged(s)) {
1119                status_printf_ln(s, color, _("You have unmerged paths."));
1120                if (s->hints) {
1121                        status_printf_ln(s, color,
1122                                         _("  (fix conflicts and run \"git commit\")"));
1123                        status_printf_ln(s, color,
1124                                         _("  (use \"git merge --abort\" to abort the merge)"));
1125                }
1126        } else {
1127                status_printf_ln(s, color,
1128                        _("All conflicts fixed but you are still merging."));
1129                if (s->hints)
1130                        status_printf_ln(s, color,
1131                                _("  (use \"git commit\" to conclude merge)"));
1132        }
1133        wt_longstatus_print_trailer(s);
1134}
1135
1136static void show_am_in_progress(struct wt_status *s,
1137                                const char *color)
1138{
1139        status_printf_ln(s, color,
1140                _("You are in the middle of an am session."));
1141        if (s->state.am_empty_patch)
1142                status_printf_ln(s, color,
1143                        _("The current patch is empty."));
1144        if (s->hints) {
1145                if (!s->state.am_empty_patch)
1146                        status_printf_ln(s, color,
1147                                _("  (fix conflicts and then run \"git am --continue\")"));
1148                status_printf_ln(s, color,
1149                        _("  (use \"git am --skip\" to skip this patch)"));
1150                status_printf_ln(s, color,
1151                        _("  (use \"git am --abort\" to restore the original branch)"));
1152        }
1153        wt_longstatus_print_trailer(s);
1154}
1155
1156static char *read_line_from_git_path(const char *filename)
1157{
1158        struct strbuf buf = STRBUF_INIT;
1159        FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
1160
1161        if (!fp) {
1162                strbuf_release(&buf);
1163                return NULL;
1164        }
1165        strbuf_getline_lf(&buf, fp);
1166        if (!fclose(fp)) {
1167                return strbuf_detach(&buf, NULL);
1168        } else {
1169                strbuf_release(&buf);
1170                return NULL;
1171        }
1172}
1173
1174static int split_commit_in_progress(struct wt_status *s)
1175{
1176        int split_in_progress = 0;
1177        char *head, *orig_head, *rebase_amend, *rebase_orig_head;
1178
1179        if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1180            !s->branch || strcmp(s->branch, "HEAD"))
1181                return 0;
1182
1183        head = read_line_from_git_path("HEAD");
1184        orig_head = read_line_from_git_path("ORIG_HEAD");
1185        rebase_amend = read_line_from_git_path("rebase-merge/amend");
1186        rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1187
1188        if (!head || !orig_head || !rebase_amend || !rebase_orig_head)
1189                ; /* fall through, no split in progress */
1190        else if (!strcmp(rebase_amend, rebase_orig_head))
1191                split_in_progress = !!strcmp(head, rebase_amend);
1192        else if (strcmp(orig_head, rebase_orig_head))
1193                split_in_progress = 1;
1194
1195        free(head);
1196        free(orig_head);
1197        free(rebase_amend);
1198        free(rebase_orig_head);
1199
1200        return split_in_progress;
1201}
1202
1203/*
1204 * Turn
1205 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1206 * into
1207 * "pick d6a2f03 some message"
1208 *
1209 * The function assumes that the line does not contain useless spaces
1210 * before or after the command.
1211 */
1212static void abbrev_sha1_in_line(struct strbuf *line)
1213{
1214        struct strbuf **split;
1215        int i;
1216
1217        if (starts_with(line->buf, "exec ") ||
1218            starts_with(line->buf, "x "))
1219                return;
1220
1221        split = strbuf_split_max(line, ' ', 3);
1222        if (split[0] && split[1]) {
1223                struct object_id oid;
1224
1225                /*
1226                 * strbuf_split_max left a space. Trim it and re-add
1227                 * it after abbreviation.
1228                 */
1229                strbuf_trim(split[1]);
1230                if (!get_oid(split[1]->buf, &oid)) {
1231                        strbuf_reset(split[1]);
1232                        strbuf_add_unique_abbrev(split[1], &oid,
1233                                                 DEFAULT_ABBREV);
1234                        strbuf_addch(split[1], ' ');
1235                        strbuf_reset(line);
1236                        for (i = 0; split[i]; i++)
1237                                strbuf_addbuf(line, split[i]);
1238                }
1239        }
1240        strbuf_list_free(split);
1241}
1242
1243static int read_rebase_todolist(const char *fname, struct string_list *lines)
1244{
1245        struct strbuf line = STRBUF_INIT;
1246        FILE *f = fopen(git_path("%s", fname), "r");
1247
1248        if (!f) {
1249                if (errno == ENOENT)
1250                        return -1;
1251                die_errno("Could not open file %s for reading",
1252                          git_path("%s", fname));
1253        }
1254        while (!strbuf_getline_lf(&line, f)) {
1255                if (line.len && line.buf[0] == comment_line_char)
1256                        continue;
1257                strbuf_trim(&line);
1258                if (!line.len)
1259                        continue;
1260                abbrev_sha1_in_line(&line);
1261                string_list_append(lines, line.buf);
1262        }
1263        fclose(f);
1264        strbuf_release(&line);
1265        return 0;
1266}
1267
1268static void show_rebase_information(struct wt_status *s,
1269                                    const char *color)
1270{
1271        if (s->state.rebase_interactive_in_progress) {
1272                int i;
1273                int nr_lines_to_show = 2;
1274
1275                struct string_list have_done = STRING_LIST_INIT_DUP;
1276                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1277
1278                read_rebase_todolist("rebase-merge/done", &have_done);
1279                if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1280                                         &yet_to_do))
1281                        status_printf_ln(s, color,
1282                                _("git-rebase-todo is missing."));
1283                if (have_done.nr == 0)
1284                        status_printf_ln(s, color, _("No commands done."));
1285                else {
1286                        status_printf_ln(s, color,
1287                                Q_("Last command done (%d command done):",
1288                                        "Last commands done (%d commands done):",
1289                                        have_done.nr),
1290                                have_done.nr);
1291                        for (i = (have_done.nr > nr_lines_to_show)
1292                                ? have_done.nr - nr_lines_to_show : 0;
1293                                i < have_done.nr;
1294                                i++)
1295                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1296                        if (have_done.nr > nr_lines_to_show && s->hints)
1297                                status_printf_ln(s, color,
1298                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1299                }
1300
1301                if (yet_to_do.nr == 0)
1302                        status_printf_ln(s, color,
1303                                         _("No commands remaining."));
1304                else {
1305                        status_printf_ln(s, color,
1306                                Q_("Next command to do (%d remaining command):",
1307                                        "Next commands to do (%d remaining commands):",
1308                                        yet_to_do.nr),
1309                                yet_to_do.nr);
1310                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1311                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1312                        if (s->hints)
1313                                status_printf_ln(s, color,
1314                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1315                }
1316                string_list_clear(&yet_to_do, 0);
1317                string_list_clear(&have_done, 0);
1318        }
1319}
1320
1321static void print_rebase_state(struct wt_status *s,
1322                               const char *color)
1323{
1324        if (s->state.branch)
1325                status_printf_ln(s, color,
1326                                 _("You are currently rebasing branch '%s' on '%s'."),
1327                                 s->state.branch,
1328                                 s->state.onto);
1329        else
1330                status_printf_ln(s, color,
1331                                 _("You are currently rebasing."));
1332}
1333
1334static void show_rebase_in_progress(struct wt_status *s,
1335                                    const char *color)
1336{
1337        struct stat st;
1338
1339        show_rebase_information(s, color);
1340        if (has_unmerged(s)) {
1341                print_rebase_state(s, color);
1342                if (s->hints) {
1343                        status_printf_ln(s, color,
1344                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1345                        status_printf_ln(s, color,
1346                                _("  (use \"git rebase --skip\" to skip this patch)"));
1347                        status_printf_ln(s, color,
1348                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1349                }
1350        } else if (s->state.rebase_in_progress ||
1351                   !stat(git_path_merge_msg(s->repo), &st)) {
1352                print_rebase_state(s, color);
1353                if (s->hints)
1354                        status_printf_ln(s, color,
1355                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1356        } else if (split_commit_in_progress(s)) {
1357                if (s->state.branch)
1358                        status_printf_ln(s, color,
1359                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1360                                         s->state.branch,
1361                                         s->state.onto);
1362                else
1363                        status_printf_ln(s, color,
1364                                         _("You are currently splitting a commit during a rebase."));
1365                if (s->hints)
1366                        status_printf_ln(s, color,
1367                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1368        } else {
1369                if (s->state.branch)
1370                        status_printf_ln(s, color,
1371                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1372                                         s->state.branch,
1373                                         s->state.onto);
1374                else
1375                        status_printf_ln(s, color,
1376                                         _("You are currently editing a commit during a rebase."));
1377                if (s->hints && !s->amend) {
1378                        status_printf_ln(s, color,
1379                                _("  (use \"git commit --amend\" to amend the current commit)"));
1380                        status_printf_ln(s, color,
1381                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1382                }
1383        }
1384        wt_longstatus_print_trailer(s);
1385}
1386
1387static void show_cherry_pick_in_progress(struct wt_status *s,
1388                                         const char *color)
1389{
1390        if (is_null_oid(&s->state.cherry_pick_head_oid))
1391                status_printf_ln(s, color,
1392                        _("Cherry-pick currently in progress."));
1393        else
1394                status_printf_ln(s, color,
1395                        _("You are currently cherry-picking commit %s."),
1396                        find_unique_abbrev(&s->state.cherry_pick_head_oid,
1397                                           DEFAULT_ABBREV));
1398
1399        if (s->hints) {
1400                if (has_unmerged(s))
1401                        status_printf_ln(s, color,
1402                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1403                else if (is_null_oid(&s->state.cherry_pick_head_oid))
1404                        status_printf_ln(s, color,
1405                                _("  (run \"git cherry-pick --continue\" to continue)"));
1406                else
1407                        status_printf_ln(s, color,
1408                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1409                status_printf_ln(s, color,
1410                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1411        }
1412        wt_longstatus_print_trailer(s);
1413}
1414
1415static void show_revert_in_progress(struct wt_status *s,
1416                                    const char *color)
1417{
1418        if (is_null_oid(&s->state.revert_head_oid))
1419                status_printf_ln(s, color,
1420                        _("Revert currently in progress."));
1421        else
1422                status_printf_ln(s, color,
1423                        _("You are currently reverting commit %s."),
1424                        find_unique_abbrev(&s->state.revert_head_oid,
1425                                           DEFAULT_ABBREV));
1426        if (s->hints) {
1427                if (has_unmerged(s))
1428                        status_printf_ln(s, color,
1429                                _("  (fix conflicts and run \"git revert --continue\")"));
1430                else if (is_null_oid(&s->state.revert_head_oid))
1431                        status_printf_ln(s, color,
1432                                _("  (run \"git revert --continue\" to continue)"));
1433                else
1434                        status_printf_ln(s, color,
1435                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1436                status_printf_ln(s, color,
1437                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1438        }
1439        wt_longstatus_print_trailer(s);
1440}
1441
1442static void show_bisect_in_progress(struct wt_status *s,
1443                                    const char *color)
1444{
1445        if (s->state.branch)
1446                status_printf_ln(s, color,
1447                                 _("You are currently bisecting, started from branch '%s'."),
1448                                 s->state.branch);
1449        else
1450                status_printf_ln(s, color,
1451                                 _("You are currently bisecting."));
1452        if (s->hints)
1453                status_printf_ln(s, color,
1454                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1455        wt_longstatus_print_trailer(s);
1456}
1457
1458/*
1459 * Extract branch information from rebase/bisect
1460 */
1461static char *get_branch(const struct worktree *wt, const char *path)
1462{
1463        struct strbuf sb = STRBUF_INIT;
1464        struct object_id oid;
1465        const char *branch_name;
1466
1467        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1468                goto got_nothing;
1469
1470        while (sb.len && sb.buf[sb.len - 1] == '\n')
1471                strbuf_setlen(&sb, sb.len - 1);
1472        if (!sb.len)
1473                goto got_nothing;
1474        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1475                strbuf_remove(&sb, 0, branch_name - sb.buf);
1476        else if (starts_with(sb.buf, "refs/"))
1477                ;
1478        else if (!get_oid_hex(sb.buf, &oid)) {
1479                strbuf_reset(&sb);
1480                strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1481        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1482                goto got_nothing;
1483        else                    /* bisect */
1484                ;
1485        return strbuf_detach(&sb, NULL);
1486
1487got_nothing:
1488        strbuf_release(&sb);
1489        return NULL;
1490}
1491
1492struct grab_1st_switch_cbdata {
1493        struct strbuf buf;
1494        struct object_id noid;
1495};
1496
1497static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1498                           const char *email, timestamp_t timestamp, int tz,
1499                           const char *message, void *cb_data)
1500{
1501        struct grab_1st_switch_cbdata *cb = cb_data;
1502        const char *target = NULL, *end;
1503
1504        if (!skip_prefix(message, "checkout: moving from ", &message))
1505                return 0;
1506        target = strstr(message, " to ");
1507        if (!target)
1508                return 0;
1509        target += strlen(" to ");
1510        strbuf_reset(&cb->buf);
1511        oidcpy(&cb->noid, noid);
1512        end = strchrnul(target, '\n');
1513        strbuf_add(&cb->buf, target, end - target);
1514        if (!strcmp(cb->buf.buf, "HEAD")) {
1515                /* HEAD is relative. Resolve it to the right reflog entry. */
1516                strbuf_reset(&cb->buf);
1517                strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1518        }
1519        return 1;
1520}
1521
1522static void wt_status_get_detached_from(struct repository *r,
1523                                        struct wt_status_state *state)
1524{
1525        struct grab_1st_switch_cbdata cb;
1526        struct commit *commit;
1527        struct object_id oid;
1528        char *ref = NULL;
1529
1530        strbuf_init(&cb.buf, 0);
1531        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1532                strbuf_release(&cb.buf);
1533                return;
1534        }
1535
1536        if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
1537            /* sha1 is a commit? match without further lookup */
1538            (oideq(&cb.noid, &oid) ||
1539             /* perhaps sha1 is a tag, try to dereference to a commit */
1540             ((commit = lookup_commit_reference_gently(r, &oid, 1)) != NULL &&
1541              oideq(&cb.noid, &commit->object.oid)))) {
1542                const char *from = ref;
1543                if (!skip_prefix(from, "refs/tags/", &from))
1544                        skip_prefix(from, "refs/remotes/", &from);
1545                state->detached_from = xstrdup(from);
1546        } else
1547                state->detached_from =
1548                        xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
1549        oidcpy(&state->detached_oid, &cb.noid);
1550        state->detached_at = !get_oid("HEAD", &oid) &&
1551                             oideq(&oid, &state->detached_oid);
1552
1553        free(ref);
1554        strbuf_release(&cb.buf);
1555}
1556
1557int wt_status_check_rebase(const struct worktree *wt,
1558                           struct wt_status_state *state)
1559{
1560        struct stat st;
1561
1562        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1563                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1564                        state->am_in_progress = 1;
1565                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1566                                state->am_empty_patch = 1;
1567                } else {
1568                        state->rebase_in_progress = 1;
1569                        state->branch = get_branch(wt, "rebase-apply/head-name");
1570                        state->onto = get_branch(wt, "rebase-apply/onto");
1571                }
1572        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1573                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1574                        state->rebase_interactive_in_progress = 1;
1575                else
1576                        state->rebase_in_progress = 1;
1577                state->branch = get_branch(wt, "rebase-merge/head-name");
1578                state->onto = get_branch(wt, "rebase-merge/onto");
1579        } else
1580                return 0;
1581        return 1;
1582}
1583
1584int wt_status_check_bisect(const struct worktree *wt,
1585                           struct wt_status_state *state)
1586{
1587        struct stat st;
1588
1589        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1590                state->bisect_in_progress = 1;
1591                state->branch = get_branch(wt, "BISECT_START");
1592                return 1;
1593        }
1594        return 0;
1595}
1596
1597void wt_status_get_state(struct repository *r,
1598                         struct wt_status_state *state,
1599                         int get_detached_from)
1600{
1601        struct stat st;
1602        struct object_id oid;
1603        enum replay_action action;
1604
1605        if (!stat(git_path_merge_head(r), &st)) {
1606                wt_status_check_rebase(NULL, state);
1607                state->merge_in_progress = 1;
1608        } else if (wt_status_check_rebase(NULL, state)) {
1609                ;               /* all set */
1610        } else if (!stat(git_path_cherry_pick_head(r), &st) &&
1611                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
1612                state->cherry_pick_in_progress = 1;
1613                oidcpy(&state->cherry_pick_head_oid, &oid);
1614        }
1615        wt_status_check_bisect(NULL, state);
1616        if (!stat(git_path_revert_head(r), &st) &&
1617            !get_oid("REVERT_HEAD", &oid)) {
1618                state->revert_in_progress = 1;
1619                oidcpy(&state->revert_head_oid, &oid);
1620        }
1621        if (!sequencer_get_last_command(r, &action)) {
1622                if (action == REPLAY_PICK) {
1623                        state->cherry_pick_in_progress = 1;
1624                        oidcpy(&state->cherry_pick_head_oid, &null_oid);
1625                } else {
1626                        state->revert_in_progress = 1;
1627                        oidcpy(&state->revert_head_oid, &null_oid);
1628                }
1629        }
1630        if (get_detached_from)
1631                wt_status_get_detached_from(r, state);
1632}
1633
1634static void wt_longstatus_print_state(struct wt_status *s)
1635{
1636        const char *state_color = color(WT_STATUS_HEADER, s);
1637        struct wt_status_state *state = &s->state;
1638
1639        if (state->merge_in_progress) {
1640                if (state->rebase_interactive_in_progress) {
1641                        show_rebase_information(s, state_color);
1642                        fputs("\n", s->fp);
1643                }
1644                show_merge_in_progress(s, state_color);
1645        } else if (state->am_in_progress)
1646                show_am_in_progress(s, state_color);
1647        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1648                show_rebase_in_progress(s, state_color);
1649        else if (state->cherry_pick_in_progress)
1650                show_cherry_pick_in_progress(s, state_color);
1651        else if (state->revert_in_progress)
1652                show_revert_in_progress(s, state_color);
1653        if (state->bisect_in_progress)
1654                show_bisect_in_progress(s, state_color);
1655}
1656
1657static void wt_longstatus_print(struct wt_status *s)
1658{
1659        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1660        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1661
1662        if (s->branch) {
1663                const char *on_what = _("On branch ");
1664                const char *branch_name = s->branch;
1665                if (!strcmp(branch_name, "HEAD")) {
1666                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1667                        if (s->state.rebase_in_progress ||
1668                            s->state.rebase_interactive_in_progress) {
1669                                if (s->state.rebase_interactive_in_progress)
1670                                        on_what = _("interactive rebase in progress; onto ");
1671                                else
1672                                        on_what = _("rebase in progress; onto ");
1673                                branch_name = s->state.onto;
1674                        } else if (s->state.detached_from) {
1675                                branch_name = s->state.detached_from;
1676                                if (s->state.detached_at)
1677                                        on_what = _("HEAD detached at ");
1678                                else
1679                                        on_what = _("HEAD detached from ");
1680                        } else {
1681                                branch_name = "";
1682                                on_what = _("Not currently on any branch.");
1683                        }
1684                } else
1685                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1686                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1687                status_printf_more(s, branch_status_color, "%s", on_what);
1688                status_printf_more(s, branch_color, "%s\n", branch_name);
1689                if (!s->is_initial)
1690                        wt_longstatus_print_tracking(s);
1691        }
1692
1693        wt_longstatus_print_state(s);
1694
1695        if (s->is_initial) {
1696                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1697                status_printf_ln(s, color(WT_STATUS_HEADER, s),
1698                                 s->commit_template
1699                                 ? _("Initial commit")
1700                                 : _("No commits yet"));
1701                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1702        }
1703
1704        wt_longstatus_print_updated(s);
1705        wt_longstatus_print_unmerged(s);
1706        wt_longstatus_print_changed(s);
1707        if (s->submodule_summary &&
1708            (!s->ignore_submodule_arg ||
1709             strcmp(s->ignore_submodule_arg, "all"))) {
1710                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1711                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1712        }
1713        if (s->show_untracked_files) {
1714                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1715                if (s->show_ignored_mode)
1716                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1717                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1718                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1719                        status_printf_ln(s, GIT_COLOR_NORMAL,
1720                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1721                                           "may speed it up, but you have to be careful not to forget to add\n"
1722                                           "new files yourself (see 'git help status')."),
1723                                         s->untracked_in_ms / 1000.0);
1724                }
1725        } else if (s->committable)
1726                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1727                        s->hints
1728                        ? _(" (use -u option to show untracked files)") : "");
1729
1730        if (s->verbose)
1731                wt_longstatus_print_verbose(s);
1732        if (!s->committable) {
1733                if (s->amend)
1734                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1735                else if (s->nowarn)
1736                        ; /* nothing */
1737                else if (s->workdir_dirty) {
1738                        if (s->hints)
1739                                printf(_("no changes added to commit "
1740                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1741                        else
1742                                printf(_("no changes added to commit\n"));
1743                } else if (s->untracked.nr) {
1744                        if (s->hints)
1745                                printf(_("nothing added to commit but untracked files "
1746                                         "present (use \"git add\" to track)\n"));
1747                        else
1748                                printf(_("nothing added to commit but untracked files present\n"));
1749                } else if (s->is_initial) {
1750                        if (s->hints)
1751                                printf(_("nothing to commit (create/copy files "
1752                                         "and use \"git add\" to track)\n"));
1753                        else
1754                                printf(_("nothing to commit\n"));
1755                } else if (!s->show_untracked_files) {
1756                        if (s->hints)
1757                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1758                        else
1759                                printf(_("nothing to commit\n"));
1760                } else
1761                        printf(_("nothing to commit, working tree clean\n"));
1762        }
1763        if(s->show_stash)
1764                wt_longstatus_print_stash_summary(s);
1765}
1766
1767static void wt_shortstatus_unmerged(struct string_list_item *it,
1768                           struct wt_status *s)
1769{
1770        struct wt_status_change_data *d = it->util;
1771        const char *how = "??";
1772
1773        switch (d->stagemask) {
1774        case 1: how = "DD"; break; /* both deleted */
1775        case 2: how = "AU"; break; /* added by us */
1776        case 3: how = "UD"; break; /* deleted by them */
1777        case 4: how = "UA"; break; /* added by them */
1778        case 5: how = "DU"; break; /* deleted by us */
1779        case 6: how = "AA"; break; /* both added */
1780        case 7: how = "UU"; break; /* both modified */
1781        }
1782        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1783        if (s->null_termination) {
1784                fprintf(stdout, " %s%c", it->string, 0);
1785        } else {
1786                struct strbuf onebuf = STRBUF_INIT;
1787                const char *one;
1788                one = quote_path(it->string, s->prefix, &onebuf);
1789                printf(" %s\n", one);
1790                strbuf_release(&onebuf);
1791        }
1792}
1793
1794static void wt_shortstatus_status(struct string_list_item *it,
1795                         struct wt_status *s)
1796{
1797        struct wt_status_change_data *d = it->util;
1798
1799        if (d->index_status)
1800                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1801        else
1802                putchar(' ');
1803        if (d->worktree_status)
1804                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1805        else
1806                putchar(' ');
1807        putchar(' ');
1808        if (s->null_termination) {
1809                fprintf(stdout, "%s%c", it->string, 0);
1810                if (d->rename_source)
1811                        fprintf(stdout, "%s%c", d->rename_source, 0);
1812        } else {
1813                struct strbuf onebuf = STRBUF_INIT;
1814                const char *one;
1815
1816                if (d->rename_source) {
1817                        one = quote_path(d->rename_source, s->prefix, &onebuf);
1818                        if (*one != '"' && strchr(one, ' ') != NULL) {
1819                                putchar('"');
1820                                strbuf_addch(&onebuf, '"');
1821                                one = onebuf.buf;
1822                        }
1823                        printf("%s -> ", one);
1824                        strbuf_release(&onebuf);
1825                }
1826                one = quote_path(it->string, s->prefix, &onebuf);
1827                if (*one != '"' && strchr(one, ' ') != NULL) {
1828                        putchar('"');
1829                        strbuf_addch(&onebuf, '"');
1830                        one = onebuf.buf;
1831                }
1832                printf("%s\n", one);
1833                strbuf_release(&onebuf);
1834        }
1835}
1836
1837static void wt_shortstatus_other(struct string_list_item *it,
1838                                 struct wt_status *s, const char *sign)
1839{
1840        if (s->null_termination) {
1841                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1842        } else {
1843                struct strbuf onebuf = STRBUF_INIT;
1844                const char *one;
1845                one = quote_path(it->string, s->prefix, &onebuf);
1846                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1847                printf(" %s\n", one);
1848                strbuf_release(&onebuf);
1849        }
1850}
1851
1852static void wt_shortstatus_print_tracking(struct wt_status *s)
1853{
1854        struct branch *branch;
1855        const char *header_color = color(WT_STATUS_HEADER, s);
1856        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1857        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1858
1859        const char *base;
1860        char *short_base;
1861        const char *branch_name;
1862        int num_ours, num_theirs, sti;
1863        int upstream_is_gone = 0;
1864
1865        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1866
1867        if (!s->branch)
1868                return;
1869        branch_name = s->branch;
1870
1871#define LABEL(string) (s->no_gettext ? (string) : _(string))
1872
1873        if (s->is_initial)
1874                color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
1875
1876        if (!strcmp(s->branch, "HEAD")) {
1877                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1878                              LABEL(N_("HEAD (no branch)")));
1879                goto conclude;
1880        }
1881
1882        skip_prefix(branch_name, "refs/heads/", &branch_name);
1883
1884        branch = branch_get(branch_name);
1885
1886        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1887
1888        sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
1889                                 0, s->ahead_behind_flags);
1890        if (sti < 0) {
1891                if (!base)
1892                        goto conclude;
1893
1894                upstream_is_gone = 1;
1895        }
1896
1897        short_base = shorten_unambiguous_ref(base, 0);
1898        color_fprintf(s->fp, header_color, "...");
1899        color_fprintf(s->fp, branch_color_remote, "%s", short_base);
1900        free(short_base);
1901
1902        if (!upstream_is_gone && !sti)
1903                goto conclude;
1904
1905        color_fprintf(s->fp, header_color, " [");
1906        if (upstream_is_gone) {
1907                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1908        } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
1909                color_fprintf(s->fp, header_color, LABEL(N_("different")));
1910        } else if (!num_ours) {
1911                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1912                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1913        } else if (!num_theirs) {
1914                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1915                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1916        } else {
1917                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1918                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1919                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1920                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1921        }
1922
1923        color_fprintf(s->fp, header_color, "]");
1924 conclude:
1925        fputc(s->null_termination ? '\0' : '\n', s->fp);
1926}
1927
1928static void wt_shortstatus_print(struct wt_status *s)
1929{
1930        struct string_list_item *it;
1931
1932        if (s->show_branch)
1933                wt_shortstatus_print_tracking(s);
1934
1935        for_each_string_list_item(it, &s->change) {
1936                struct wt_status_change_data *d = it->util;
1937
1938                if (d->stagemask)
1939                        wt_shortstatus_unmerged(it, s);
1940                else
1941                        wt_shortstatus_status(it, s);
1942        }
1943        for_each_string_list_item(it, &s->untracked)
1944                wt_shortstatus_other(it, s, "??");
1945
1946        for_each_string_list_item(it, &s->ignored)
1947                wt_shortstatus_other(it, s, "!!");
1948}
1949
1950static void wt_porcelain_print(struct wt_status *s)
1951{
1952        s->use_color = 0;
1953        s->relative_paths = 0;
1954        s->prefix = NULL;
1955        s->no_gettext = 1;
1956        wt_shortstatus_print(s);
1957}
1958
1959/*
1960 * Print branch information for porcelain v2 output.  These lines
1961 * are printed when the '--branch' parameter is given.
1962 *
1963 *    # branch.oid <commit><eol>
1964 *    # branch.head <head><eol>
1965 *   [# branch.upstream <upstream><eol>
1966 *   [# branch.ab +<ahead> -<behind><eol>]]
1967 *
1968 *      <commit> ::= the current commit hash or the the literal
1969 *                   "(initial)" to indicate an initialized repo
1970 *                   with no commits.
1971 *
1972 *        <head> ::= <branch_name> the current branch name or
1973 *                   "(detached)" literal when detached head or
1974 *                   "(unknown)" when something is wrong.
1975 *
1976 *    <upstream> ::= the upstream branch name, when set.
1977 *
1978 *       <ahead> ::= integer ahead value or '?'.
1979 *
1980 *      <behind> ::= integer behind value or '?'.
1981 *
1982 * The end-of-line is defined by the -z flag.
1983 *
1984 *                 <eol> ::= NUL when -z,
1985 *                           LF when NOT -z.
1986 *
1987 * When an upstream is set and present, the 'branch.ab' line will
1988 * be printed with the ahead/behind counts for the branch and the
1989 * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
1990 * are different, '?' will be substituted for the actual count.
1991 */
1992static void wt_porcelain_v2_print_tracking(struct wt_status *s)
1993{
1994        struct branch *branch;
1995        const char *base;
1996        const char *branch_name;
1997        int ab_info, nr_ahead, nr_behind;
1998        char eol = s->null_termination ? '\0' : '\n';
1999
2000        fprintf(s->fp, "# branch.oid %s%c",
2001                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
2002                        eol);
2003
2004        if (!s->branch)
2005                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
2006        else {
2007                if (!strcmp(s->branch, "HEAD")) {
2008                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
2009
2010                        if (s->state.rebase_in_progress ||
2011                            s->state.rebase_interactive_in_progress)
2012                                branch_name = s->state.onto;
2013                        else if (s->state.detached_from)
2014                                branch_name = s->state.detached_from;
2015                        else
2016                                branch_name = "";
2017                } else {
2018                        branch_name = NULL;
2019                        skip_prefix(s->branch, "refs/heads/", &branch_name);
2020
2021                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
2022                }
2023
2024                /* Lookup stats on the upstream tracking branch, if set. */
2025                branch = branch_get(branch_name);
2026                base = NULL;
2027                ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
2028                                             &base, 0, s->ahead_behind_flags);
2029                if (base) {
2030                        base = shorten_unambiguous_ref(base, 0);
2031                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
2032                        free((char *)base);
2033
2034                        if (ab_info > 0) {
2035                                /* different */
2036                                if (nr_ahead || nr_behind)
2037                                        fprintf(s->fp, "# branch.ab +%d -%d%c",
2038                                                nr_ahead, nr_behind, eol);
2039                                else
2040                                        fprintf(s->fp, "# branch.ab +? -?%c",
2041                                                eol);
2042                        } else if (!ab_info) {
2043                                /* same */
2044                                fprintf(s->fp, "# branch.ab +0 -0%c", eol);
2045                        }
2046                }
2047        }
2048}
2049
2050/*
2051 * Convert various submodule status values into a
2052 * fixed-length string of characters in the buffer provided.
2053 */
2054static void wt_porcelain_v2_submodule_state(
2055        struct wt_status_change_data *d,
2056        char sub[5])
2057{
2058        if (S_ISGITLINK(d->mode_head) ||
2059                S_ISGITLINK(d->mode_index) ||
2060                S_ISGITLINK(d->mode_worktree)) {
2061                sub[0] = 'S';
2062                sub[1] = d->new_submodule_commits ? 'C' : '.';
2063                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2064                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2065        } else {
2066                sub[0] = 'N';
2067                sub[1] = '.';
2068                sub[2] = '.';
2069                sub[3] = '.';
2070        }
2071        sub[4] = 0;
2072}
2073
2074/*
2075 * Fix-up changed entries before we print them.
2076 */
2077static void wt_porcelain_v2_fix_up_changed(
2078        struct string_list_item *it,
2079        struct wt_status *s)
2080{
2081        struct wt_status_change_data *d = it->util;
2082
2083        if (!d->index_status) {
2084                /*
2085                 * This entry is unchanged in the index (relative to the head).
2086                 * Therefore, the collect_updated_cb was never called for this
2087                 * entry (during the head-vs-index scan) and so the head column
2088                 * fields were never set.
2089                 *
2090                 * We must have data for the index column (from the
2091                 * index-vs-worktree scan (otherwise, this entry should not be
2092                 * in the list of changes)).
2093                 *
2094                 * Copy index column fields to the head column, so that our
2095                 * output looks complete.
2096                 */
2097                assert(d->mode_head == 0);
2098                d->mode_head = d->mode_index;
2099                oidcpy(&d->oid_head, &d->oid_index);
2100        }
2101
2102        if (!d->worktree_status) {
2103                /*
2104                 * This entry is unchanged in the worktree (relative to the index).
2105                 * Therefore, the collect_changed_cb was never called for this entry
2106                 * (during the index-vs-worktree scan) and so the worktree column
2107                 * fields were never set.
2108                 *
2109                 * We must have data for the index column (from the head-vs-index
2110                 * scan).
2111                 *
2112                 * Copy the index column fields to the worktree column so that
2113                 * our output looks complete.
2114                 *
2115                 * Note that we only have a mode field in the worktree column
2116                 * because the scan code tries really hard to not have to compute it.
2117                 */
2118                assert(d->mode_worktree == 0);
2119                d->mode_worktree = d->mode_index;
2120        }
2121}
2122
2123/*
2124 * Print porcelain v2 info for tracked entries with changes.
2125 */
2126static void wt_porcelain_v2_print_changed_entry(
2127        struct string_list_item *it,
2128        struct wt_status *s)
2129{
2130        struct wt_status_change_data *d = it->util;
2131        struct strbuf buf = STRBUF_INIT;
2132        struct strbuf buf_from = STRBUF_INIT;
2133        const char *path = NULL;
2134        const char *path_from = NULL;
2135        char key[3];
2136        char submodule_token[5];
2137        char sep_char, eol_char;
2138
2139        wt_porcelain_v2_fix_up_changed(it, s);
2140        wt_porcelain_v2_submodule_state(d, submodule_token);
2141
2142        key[0] = d->index_status ? d->index_status : '.';
2143        key[1] = d->worktree_status ? d->worktree_status : '.';
2144        key[2] = 0;
2145
2146        if (s->null_termination) {
2147                /*
2148                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2149                 * A single NUL character separates them.
2150                 */
2151                sep_char = '\0';
2152                eol_char = '\0';
2153                path = it->string;
2154                path_from = d->rename_source;
2155        } else {
2156                /*
2157                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2158                 * The source path is only present when necessary.
2159                 * A single TAB separates them (because paths can contain spaces
2160                 * which are not escaped and C-quoting does escape TAB characters).
2161                 */
2162                sep_char = '\t';
2163                eol_char = '\n';
2164                path = quote_path(it->string, s->prefix, &buf);
2165                if (d->rename_source)
2166                        path_from = quote_path(d->rename_source, s->prefix, &buf_from);
2167        }
2168
2169        if (path_from)
2170                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2171                                key, submodule_token,
2172                                d->mode_head, d->mode_index, d->mode_worktree,
2173                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2174                                d->rename_status, d->rename_score,
2175                                path, sep_char, path_from, eol_char);
2176        else
2177                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2178                                key, submodule_token,
2179                                d->mode_head, d->mode_index, d->mode_worktree,
2180                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2181                                path, eol_char);
2182
2183        strbuf_release(&buf);
2184        strbuf_release(&buf_from);
2185}
2186
2187/*
2188 * Print porcelain v2 status info for unmerged entries.
2189 */
2190static void wt_porcelain_v2_print_unmerged_entry(
2191        struct string_list_item *it,
2192        struct wt_status *s)
2193{
2194        struct wt_status_change_data *d = it->util;
2195        struct index_state *istate = s->repo->index;
2196        const struct cache_entry *ce;
2197        struct strbuf buf_index = STRBUF_INIT;
2198        const char *path_index = NULL;
2199        int pos, stage, sum;
2200        struct {
2201                int mode;
2202                struct object_id oid;
2203        } stages[3];
2204        char *key;
2205        char submodule_token[5];
2206        char unmerged_prefix = 'u';
2207        char eol_char = s->null_termination ? '\0' : '\n';
2208
2209        wt_porcelain_v2_submodule_state(d, submodule_token);
2210
2211        switch (d->stagemask) {
2212        case 1: key = "DD"; break; /* both deleted */
2213        case 2: key = "AU"; break; /* added by us */
2214        case 3: key = "UD"; break; /* deleted by them */
2215        case 4: key = "UA"; break; /* added by them */
2216        case 5: key = "DU"; break; /* deleted by us */
2217        case 6: key = "AA"; break; /* both added */
2218        case 7: key = "UU"; break; /* both modified */
2219        default:
2220                BUG("unhandled unmerged status %x", d->stagemask);
2221        }
2222
2223        /*
2224         * Disregard d.aux.porcelain_v2 data that we accumulated
2225         * for the head and index columns during the scans and
2226         * replace with the actual stage data.
2227         *
2228         * Note that this is a last-one-wins for each the individual
2229         * stage [123] columns in the event of multiple cache entries
2230         * for same stage.
2231         */
2232        memset(stages, 0, sizeof(stages));
2233        sum = 0;
2234        pos = index_name_pos(istate, it->string, strlen(it->string));
2235        assert(pos < 0);
2236        pos = -pos-1;
2237        while (pos < istate->cache_nr) {
2238                ce = istate->cache[pos++];
2239                stage = ce_stage(ce);
2240                if (strcmp(ce->name, it->string) || !stage)
2241                        break;
2242                stages[stage - 1].mode = ce->ce_mode;
2243                oidcpy(&stages[stage - 1].oid, &ce->oid);
2244                sum |= (1 << (stage - 1));
2245        }
2246        if (sum != d->stagemask)
2247                BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2248
2249        if (s->null_termination)
2250                path_index = it->string;
2251        else
2252                path_index = quote_path(it->string, s->prefix, &buf_index);
2253
2254        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2255                        unmerged_prefix, key, submodule_token,
2256                        stages[0].mode, /* stage 1 */
2257                        stages[1].mode, /* stage 2 */
2258                        stages[2].mode, /* stage 3 */
2259                        d->mode_worktree,
2260                        oid_to_hex(&stages[0].oid), /* stage 1 */
2261                        oid_to_hex(&stages[1].oid), /* stage 2 */
2262                        oid_to_hex(&stages[2].oid), /* stage 3 */
2263                        path_index,
2264                        eol_char);
2265
2266        strbuf_release(&buf_index);
2267}
2268
2269/*
2270 * Print porcelain V2 status info for untracked and ignored entries.
2271 */
2272static void wt_porcelain_v2_print_other(
2273        struct string_list_item *it,
2274        struct wt_status *s,
2275        char prefix)
2276{
2277        struct strbuf buf = STRBUF_INIT;
2278        const char *path;
2279        char eol_char;
2280
2281        if (s->null_termination) {
2282                path = it->string;
2283                eol_char = '\0';
2284        } else {
2285                path = quote_path(it->string, s->prefix, &buf);
2286                eol_char = '\n';
2287        }
2288
2289        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2290
2291        strbuf_release(&buf);
2292}
2293
2294/*
2295 * Print porcelain V2 status.
2296 *
2297 * [<v2_branch>]
2298 * [<v2_changed_items>]*
2299 * [<v2_unmerged_items>]*
2300 * [<v2_untracked_items>]*
2301 * [<v2_ignored_items>]*
2302 *
2303 */
2304static void wt_porcelain_v2_print(struct wt_status *s)
2305{
2306        struct wt_status_change_data *d;
2307        struct string_list_item *it;
2308        int i;
2309
2310        if (s->show_branch)
2311                wt_porcelain_v2_print_tracking(s);
2312
2313        for (i = 0; i < s->change.nr; i++) {
2314                it = &(s->change.items[i]);
2315                d = it->util;
2316                if (!d->stagemask)
2317                        wt_porcelain_v2_print_changed_entry(it, s);
2318        }
2319
2320        for (i = 0; i < s->change.nr; i++) {
2321                it = &(s->change.items[i]);
2322                d = it->util;
2323                if (d->stagemask)
2324                        wt_porcelain_v2_print_unmerged_entry(it, s);
2325        }
2326
2327        for (i = 0; i < s->untracked.nr; i++) {
2328                it = &(s->untracked.items[i]);
2329                wt_porcelain_v2_print_other(it, s, '?');
2330        }
2331
2332        for (i = 0; i < s->ignored.nr; i++) {
2333                it = &(s->ignored.items[i]);
2334                wt_porcelain_v2_print_other(it, s, '!');
2335        }
2336}
2337
2338void wt_status_print(struct wt_status *s)
2339{
2340        trace2_data_intmax("status", s->repo, "count/changed", s->change.nr);
2341        trace2_data_intmax("status", s->repo, "count/untracked",
2342                           s->untracked.nr);
2343        trace2_data_intmax("status", s->repo, "count/ignored", s->ignored.nr);
2344
2345        trace2_region_enter("status", "print", s->repo);
2346
2347        switch (s->status_format) {
2348        case STATUS_FORMAT_SHORT:
2349                wt_shortstatus_print(s);
2350                break;
2351        case STATUS_FORMAT_PORCELAIN:
2352                wt_porcelain_print(s);
2353                break;
2354        case STATUS_FORMAT_PORCELAIN_V2:
2355                wt_porcelain_v2_print(s);
2356                break;
2357        case STATUS_FORMAT_UNSPECIFIED:
2358                BUG("finalize_deferred_config() should have been called");
2359                break;
2360        case STATUS_FORMAT_NONE:
2361        case STATUS_FORMAT_LONG:
2362                wt_longstatus_print(s);
2363                break;
2364        }
2365
2366        trace2_region_leave("status", "print", s->repo);
2367}
2368
2369/**
2370 * Returns 1 if there are unstaged changes, 0 otherwise.
2371 */
2372int has_unstaged_changes(struct repository *r, int ignore_submodules)
2373{
2374        struct rev_info rev_info;
2375        int result;
2376
2377        repo_init_revisions(r, &rev_info, NULL);
2378        if (ignore_submodules) {
2379                rev_info.diffopt.flags.ignore_submodules = 1;
2380                rev_info.diffopt.flags.override_submodule_config = 1;
2381        }
2382        rev_info.diffopt.flags.quick = 1;
2383        diff_setup_done(&rev_info.diffopt);
2384        result = run_diff_files(&rev_info, 0);
2385        return diff_result_code(&rev_info.diffopt, result);
2386}
2387
2388/**
2389 * Returns 1 if there are uncommitted changes, 0 otherwise.
2390 */
2391int has_uncommitted_changes(struct repository *r,
2392                            int ignore_submodules)
2393{
2394        struct rev_info rev_info;
2395        int result;
2396
2397        if (is_index_unborn(r->index))
2398                return 0;
2399
2400        repo_init_revisions(r, &rev_info, NULL);
2401        if (ignore_submodules)
2402                rev_info.diffopt.flags.ignore_submodules = 1;
2403        rev_info.diffopt.flags.quick = 1;
2404
2405        add_head_to_pending(&rev_info);
2406        if (!rev_info.pending.nr) {
2407                /*
2408                 * We have no head (or it's corrupt); use the empty tree,
2409                 * which will complain if the index is non-empty.
2410                 */
2411                struct tree *tree = lookup_tree(r, the_hash_algo->empty_tree);
2412                add_pending_object(&rev_info, &tree->object, "");
2413        }
2414
2415        diff_setup_done(&rev_info.diffopt);
2416        result = run_diff_index(&rev_info, 1);
2417        return diff_result_code(&rev_info.diffopt, result);
2418}
2419
2420/**
2421 * If the work tree has unstaged or uncommitted changes, dies with the
2422 * appropriate message.
2423 */
2424int require_clean_work_tree(struct repository *r,
2425                            const char *action,
2426                            const char *hint,
2427                            int ignore_submodules,
2428                            int gently)
2429{
2430        struct lock_file lock_file = LOCK_INIT;
2431        int err = 0, fd;
2432
2433        fd = repo_hold_locked_index(r, &lock_file, 0);
2434        refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
2435        if (0 <= fd)
2436                repo_update_index_if_able(r, &lock_file);
2437        rollback_lock_file(&lock_file);
2438
2439        if (has_unstaged_changes(r, ignore_submodules)) {
2440                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2441                error(_("cannot %s: You have unstaged changes."), _(action));
2442                err = 1;
2443        }
2444
2445        if (has_uncommitted_changes(r, ignore_submodules)) {
2446                if (err)
2447                        error(_("additionally, your index contains uncommitted changes."));
2448                else
2449                        error(_("cannot %s: Your index contains uncommitted changes."),
2450                              _(action));
2451                err = 1;
2452        }
2453
2454        if (err) {
2455                if (hint)
2456                        error("%s", hint);
2457                if (!gently)
2458                        exit(128);
2459        }
2460
2461        return err;
2462}