wt-status.con commit help: make help_unknown_ref() NORETURN (80e3658)
   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            starts_with(line->buf, "label ") ||
1220            starts_with(line->buf, "l "))
1221                return;
1222
1223        split = strbuf_split_max(line, ' ', 3);
1224        if (split[0] && split[1]) {
1225                struct object_id oid;
1226
1227                /*
1228                 * strbuf_split_max left a space. Trim it and re-add
1229                 * it after abbreviation.
1230                 */
1231                strbuf_trim(split[1]);
1232                if (!get_oid(split[1]->buf, &oid)) {
1233                        strbuf_reset(split[1]);
1234                        strbuf_add_unique_abbrev(split[1], &oid,
1235                                                 DEFAULT_ABBREV);
1236                        strbuf_addch(split[1], ' ');
1237                        strbuf_reset(line);
1238                        for (i = 0; split[i]; i++)
1239                                strbuf_addbuf(line, split[i]);
1240                }
1241        }
1242        strbuf_list_free(split);
1243}
1244
1245static int read_rebase_todolist(const char *fname, struct string_list *lines)
1246{
1247        struct strbuf line = STRBUF_INIT;
1248        FILE *f = fopen(git_path("%s", fname), "r");
1249
1250        if (!f) {
1251                if (errno == ENOENT)
1252                        return -1;
1253                die_errno("Could not open file %s for reading",
1254                          git_path("%s", fname));
1255        }
1256        while (!strbuf_getline_lf(&line, f)) {
1257                if (line.len && line.buf[0] == comment_line_char)
1258                        continue;
1259                strbuf_trim(&line);
1260                if (!line.len)
1261                        continue;
1262                abbrev_sha1_in_line(&line);
1263                string_list_append(lines, line.buf);
1264        }
1265        fclose(f);
1266        strbuf_release(&line);
1267        return 0;
1268}
1269
1270static void show_rebase_information(struct wt_status *s,
1271                                    const char *color)
1272{
1273        if (s->state.rebase_interactive_in_progress) {
1274                int i;
1275                int nr_lines_to_show = 2;
1276
1277                struct string_list have_done = STRING_LIST_INIT_DUP;
1278                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1279
1280                read_rebase_todolist("rebase-merge/done", &have_done);
1281                if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1282                                         &yet_to_do))
1283                        status_printf_ln(s, color,
1284                                _("git-rebase-todo is missing."));
1285                if (have_done.nr == 0)
1286                        status_printf_ln(s, color, _("No commands done."));
1287                else {
1288                        status_printf_ln(s, color,
1289                                Q_("Last command done (%d command done):",
1290                                        "Last commands done (%d commands done):",
1291                                        have_done.nr),
1292                                have_done.nr);
1293                        for (i = (have_done.nr > nr_lines_to_show)
1294                                ? have_done.nr - nr_lines_to_show : 0;
1295                                i < have_done.nr;
1296                                i++)
1297                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1298                        if (have_done.nr > nr_lines_to_show && s->hints)
1299                                status_printf_ln(s, color,
1300                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1301                }
1302
1303                if (yet_to_do.nr == 0)
1304                        status_printf_ln(s, color,
1305                                         _("No commands remaining."));
1306                else {
1307                        status_printf_ln(s, color,
1308                                Q_("Next command to do (%d remaining command):",
1309                                        "Next commands to do (%d remaining commands):",
1310                                        yet_to_do.nr),
1311                                yet_to_do.nr);
1312                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1313                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1314                        if (s->hints)
1315                                status_printf_ln(s, color,
1316                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1317                }
1318                string_list_clear(&yet_to_do, 0);
1319                string_list_clear(&have_done, 0);
1320        }
1321}
1322
1323static void print_rebase_state(struct wt_status *s,
1324                               const char *color)
1325{
1326        if (s->state.branch)
1327                status_printf_ln(s, color,
1328                                 _("You are currently rebasing branch '%s' on '%s'."),
1329                                 s->state.branch,
1330                                 s->state.onto);
1331        else
1332                status_printf_ln(s, color,
1333                                 _("You are currently rebasing."));
1334}
1335
1336static void show_rebase_in_progress(struct wt_status *s,
1337                                    const char *color)
1338{
1339        struct stat st;
1340
1341        show_rebase_information(s, color);
1342        if (has_unmerged(s)) {
1343                print_rebase_state(s, color);
1344                if (s->hints) {
1345                        status_printf_ln(s, color,
1346                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1347                        status_printf_ln(s, color,
1348                                _("  (use \"git rebase --skip\" to skip this patch)"));
1349                        status_printf_ln(s, color,
1350                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1351                }
1352        } else if (s->state.rebase_in_progress ||
1353                   !stat(git_path_merge_msg(s->repo), &st)) {
1354                print_rebase_state(s, color);
1355                if (s->hints)
1356                        status_printf_ln(s, color,
1357                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1358        } else if (split_commit_in_progress(s)) {
1359                if (s->state.branch)
1360                        status_printf_ln(s, color,
1361                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1362                                         s->state.branch,
1363                                         s->state.onto);
1364                else
1365                        status_printf_ln(s, color,
1366                                         _("You are currently splitting a commit during a rebase."));
1367                if (s->hints)
1368                        status_printf_ln(s, color,
1369                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1370        } else {
1371                if (s->state.branch)
1372                        status_printf_ln(s, color,
1373                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1374                                         s->state.branch,
1375                                         s->state.onto);
1376                else
1377                        status_printf_ln(s, color,
1378                                         _("You are currently editing a commit during a rebase."));
1379                if (s->hints && !s->amend) {
1380                        status_printf_ln(s, color,
1381                                _("  (use \"git commit --amend\" to amend the current commit)"));
1382                        status_printf_ln(s, color,
1383                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1384                }
1385        }
1386        wt_longstatus_print_trailer(s);
1387}
1388
1389static void show_cherry_pick_in_progress(struct wt_status *s,
1390                                         const char *color)
1391{
1392        if (is_null_oid(&s->state.cherry_pick_head_oid))
1393                status_printf_ln(s, color,
1394                        _("Cherry-pick currently in progress."));
1395        else
1396                status_printf_ln(s, color,
1397                        _("You are currently cherry-picking commit %s."),
1398                        find_unique_abbrev(&s->state.cherry_pick_head_oid,
1399                                           DEFAULT_ABBREV));
1400
1401        if (s->hints) {
1402                if (has_unmerged(s))
1403                        status_printf_ln(s, color,
1404                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1405                else if (is_null_oid(&s->state.cherry_pick_head_oid))
1406                        status_printf_ln(s, color,
1407                                _("  (run \"git cherry-pick --continue\" to continue)"));
1408                else
1409                        status_printf_ln(s, color,
1410                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1411                status_printf_ln(s, color,
1412                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1413        }
1414        wt_longstatus_print_trailer(s);
1415}
1416
1417static void show_revert_in_progress(struct wt_status *s,
1418                                    const char *color)
1419{
1420        if (is_null_oid(&s->state.revert_head_oid))
1421                status_printf_ln(s, color,
1422                        _("Revert currently in progress."));
1423        else
1424                status_printf_ln(s, color,
1425                        _("You are currently reverting commit %s."),
1426                        find_unique_abbrev(&s->state.revert_head_oid,
1427                                           DEFAULT_ABBREV));
1428        if (s->hints) {
1429                if (has_unmerged(s))
1430                        status_printf_ln(s, color,
1431                                _("  (fix conflicts and run \"git revert --continue\")"));
1432                else if (is_null_oid(&s->state.revert_head_oid))
1433                        status_printf_ln(s, color,
1434                                _("  (run \"git revert --continue\" to continue)"));
1435                else
1436                        status_printf_ln(s, color,
1437                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1438                status_printf_ln(s, color,
1439                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1440        }
1441        wt_longstatus_print_trailer(s);
1442}
1443
1444static void show_bisect_in_progress(struct wt_status *s,
1445                                    const char *color)
1446{
1447        if (s->state.branch)
1448                status_printf_ln(s, color,
1449                                 _("You are currently bisecting, started from branch '%s'."),
1450                                 s->state.branch);
1451        else
1452                status_printf_ln(s, color,
1453                                 _("You are currently bisecting."));
1454        if (s->hints)
1455                status_printf_ln(s, color,
1456                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1457        wt_longstatus_print_trailer(s);
1458}
1459
1460/*
1461 * Extract branch information from rebase/bisect
1462 */
1463static char *get_branch(const struct worktree *wt, const char *path)
1464{
1465        struct strbuf sb = STRBUF_INIT;
1466        struct object_id oid;
1467        const char *branch_name;
1468
1469        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1470                goto got_nothing;
1471
1472        while (sb.len && sb.buf[sb.len - 1] == '\n')
1473                strbuf_setlen(&sb, sb.len - 1);
1474        if (!sb.len)
1475                goto got_nothing;
1476        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1477                strbuf_remove(&sb, 0, branch_name - sb.buf);
1478        else if (starts_with(sb.buf, "refs/"))
1479                ;
1480        else if (!get_oid_hex(sb.buf, &oid)) {
1481                strbuf_reset(&sb);
1482                strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1483        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1484                goto got_nothing;
1485        else                    /* bisect */
1486                ;
1487        return strbuf_detach(&sb, NULL);
1488
1489got_nothing:
1490        strbuf_release(&sb);
1491        return NULL;
1492}
1493
1494struct grab_1st_switch_cbdata {
1495        struct strbuf buf;
1496        struct object_id noid;
1497};
1498
1499static int grab_1st_switch(struct object_id *ooid, struct object_id *noid,
1500                           const char *email, timestamp_t timestamp, int tz,
1501                           const char *message, void *cb_data)
1502{
1503        struct grab_1st_switch_cbdata *cb = cb_data;
1504        const char *target = NULL, *end;
1505
1506        if (!skip_prefix(message, "checkout: moving from ", &message))
1507                return 0;
1508        target = strstr(message, " to ");
1509        if (!target)
1510                return 0;
1511        target += strlen(" to ");
1512        strbuf_reset(&cb->buf);
1513        oidcpy(&cb->noid, noid);
1514        end = strchrnul(target, '\n');
1515        strbuf_add(&cb->buf, target, end - target);
1516        if (!strcmp(cb->buf.buf, "HEAD")) {
1517                /* HEAD is relative. Resolve it to the right reflog entry. */
1518                strbuf_reset(&cb->buf);
1519                strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1520        }
1521        return 1;
1522}
1523
1524static void wt_status_get_detached_from(struct repository *r,
1525                                        struct wt_status_state *state)
1526{
1527        struct grab_1st_switch_cbdata cb;
1528        struct commit *commit;
1529        struct object_id oid;
1530        char *ref = NULL;
1531
1532        strbuf_init(&cb.buf, 0);
1533        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1534                strbuf_release(&cb.buf);
1535                return;
1536        }
1537
1538        if (dwim_ref(cb.buf.buf, cb.buf.len, &oid, &ref) == 1 &&
1539            /* sha1 is a commit? match without further lookup */
1540            (oideq(&cb.noid, &oid) ||
1541             /* perhaps sha1 is a tag, try to dereference to a commit */
1542             ((commit = lookup_commit_reference_gently(r, &oid, 1)) != NULL &&
1543              oideq(&cb.noid, &commit->object.oid)))) {
1544                const char *from = ref;
1545                if (!skip_prefix(from, "refs/tags/", &from))
1546                        skip_prefix(from, "refs/remotes/", &from);
1547                state->detached_from = xstrdup(from);
1548        } else
1549                state->detached_from =
1550                        xstrdup(find_unique_abbrev(&cb.noid, DEFAULT_ABBREV));
1551        oidcpy(&state->detached_oid, &cb.noid);
1552        state->detached_at = !get_oid("HEAD", &oid) &&
1553                             oideq(&oid, &state->detached_oid);
1554
1555        free(ref);
1556        strbuf_release(&cb.buf);
1557}
1558
1559int wt_status_check_rebase(const struct worktree *wt,
1560                           struct wt_status_state *state)
1561{
1562        struct stat st;
1563
1564        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1565                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1566                        state->am_in_progress = 1;
1567                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1568                                state->am_empty_patch = 1;
1569                } else {
1570                        state->rebase_in_progress = 1;
1571                        state->branch = get_branch(wt, "rebase-apply/head-name");
1572                        state->onto = get_branch(wt, "rebase-apply/onto");
1573                }
1574        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1575                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1576                        state->rebase_interactive_in_progress = 1;
1577                else
1578                        state->rebase_in_progress = 1;
1579                state->branch = get_branch(wt, "rebase-merge/head-name");
1580                state->onto = get_branch(wt, "rebase-merge/onto");
1581        } else
1582                return 0;
1583        return 1;
1584}
1585
1586int wt_status_check_bisect(const struct worktree *wt,
1587                           struct wt_status_state *state)
1588{
1589        struct stat st;
1590
1591        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1592                state->bisect_in_progress = 1;
1593                state->branch = get_branch(wt, "BISECT_START");
1594                return 1;
1595        }
1596        return 0;
1597}
1598
1599void wt_status_get_state(struct repository *r,
1600                         struct wt_status_state *state,
1601                         int get_detached_from)
1602{
1603        struct stat st;
1604        struct object_id oid;
1605        enum replay_action action;
1606
1607        if (!stat(git_path_merge_head(r), &st)) {
1608                wt_status_check_rebase(NULL, state);
1609                state->merge_in_progress = 1;
1610        } else if (wt_status_check_rebase(NULL, state)) {
1611                ;               /* all set */
1612        } else if (!stat(git_path_cherry_pick_head(r), &st) &&
1613                        !get_oid("CHERRY_PICK_HEAD", &oid)) {
1614                state->cherry_pick_in_progress = 1;
1615                oidcpy(&state->cherry_pick_head_oid, &oid);
1616        }
1617        wt_status_check_bisect(NULL, state);
1618        if (!stat(git_path_revert_head(r), &st) &&
1619            !get_oid("REVERT_HEAD", &oid)) {
1620                state->revert_in_progress = 1;
1621                oidcpy(&state->revert_head_oid, &oid);
1622        }
1623        if (!sequencer_get_last_command(r, &action)) {
1624                if (action == REPLAY_PICK) {
1625                        state->cherry_pick_in_progress = 1;
1626                        oidcpy(&state->cherry_pick_head_oid, &null_oid);
1627                } else {
1628                        state->revert_in_progress = 1;
1629                        oidcpy(&state->revert_head_oid, &null_oid);
1630                }
1631        }
1632        if (get_detached_from)
1633                wt_status_get_detached_from(r, state);
1634}
1635
1636static void wt_longstatus_print_state(struct wt_status *s)
1637{
1638        const char *state_color = color(WT_STATUS_HEADER, s);
1639        struct wt_status_state *state = &s->state;
1640
1641        if (state->merge_in_progress) {
1642                if (state->rebase_interactive_in_progress) {
1643                        show_rebase_information(s, state_color);
1644                        fputs("\n", s->fp);
1645                }
1646                show_merge_in_progress(s, state_color);
1647        } else if (state->am_in_progress)
1648                show_am_in_progress(s, state_color);
1649        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1650                show_rebase_in_progress(s, state_color);
1651        else if (state->cherry_pick_in_progress)
1652                show_cherry_pick_in_progress(s, state_color);
1653        else if (state->revert_in_progress)
1654                show_revert_in_progress(s, state_color);
1655        if (state->bisect_in_progress)
1656                show_bisect_in_progress(s, state_color);
1657}
1658
1659static void wt_longstatus_print(struct wt_status *s)
1660{
1661        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1662        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1663
1664        if (s->branch) {
1665                const char *on_what = _("On branch ");
1666                const char *branch_name = s->branch;
1667                if (!strcmp(branch_name, "HEAD")) {
1668                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1669                        if (s->state.rebase_in_progress ||
1670                            s->state.rebase_interactive_in_progress) {
1671                                if (s->state.rebase_interactive_in_progress)
1672                                        on_what = _("interactive rebase in progress; onto ");
1673                                else
1674                                        on_what = _("rebase in progress; onto ");
1675                                branch_name = s->state.onto;
1676                        } else if (s->state.detached_from) {
1677                                branch_name = s->state.detached_from;
1678                                if (s->state.detached_at)
1679                                        on_what = _("HEAD detached at ");
1680                                else
1681                                        on_what = _("HEAD detached from ");
1682                        } else {
1683                                branch_name = "";
1684                                on_what = _("Not currently on any branch.");
1685                        }
1686                } else
1687                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1688                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1689                status_printf_more(s, branch_status_color, "%s", on_what);
1690                status_printf_more(s, branch_color, "%s\n", branch_name);
1691                if (!s->is_initial)
1692                        wt_longstatus_print_tracking(s);
1693        }
1694
1695        wt_longstatus_print_state(s);
1696
1697        if (s->is_initial) {
1698                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1699                status_printf_ln(s, color(WT_STATUS_HEADER, s),
1700                                 s->commit_template
1701                                 ? _("Initial commit")
1702                                 : _("No commits yet"));
1703                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1704        }
1705
1706        wt_longstatus_print_updated(s);
1707        wt_longstatus_print_unmerged(s);
1708        wt_longstatus_print_changed(s);
1709        if (s->submodule_summary &&
1710            (!s->ignore_submodule_arg ||
1711             strcmp(s->ignore_submodule_arg, "all"))) {
1712                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1713                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1714        }
1715        if (s->show_untracked_files) {
1716                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1717                if (s->show_ignored_mode)
1718                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1719                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1720                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1721                        status_printf_ln(s, GIT_COLOR_NORMAL,
1722                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1723                                           "may speed it up, but you have to be careful not to forget to add\n"
1724                                           "new files yourself (see 'git help status')."),
1725                                         s->untracked_in_ms / 1000.0);
1726                }
1727        } else if (s->committable)
1728                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1729                        s->hints
1730                        ? _(" (use -u option to show untracked files)") : "");
1731
1732        if (s->verbose)
1733                wt_longstatus_print_verbose(s);
1734        if (!s->committable) {
1735                if (s->amend)
1736                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1737                else if (s->nowarn)
1738                        ; /* nothing */
1739                else if (s->workdir_dirty) {
1740                        if (s->hints)
1741                                printf(_("no changes added to commit "
1742                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1743                        else
1744                                printf(_("no changes added to commit\n"));
1745                } else if (s->untracked.nr) {
1746                        if (s->hints)
1747                                printf(_("nothing added to commit but untracked files "
1748                                         "present (use \"git add\" to track)\n"));
1749                        else
1750                                printf(_("nothing added to commit but untracked files present\n"));
1751                } else if (s->is_initial) {
1752                        if (s->hints)
1753                                printf(_("nothing to commit (create/copy files "
1754                                         "and use \"git add\" to track)\n"));
1755                        else
1756                                printf(_("nothing to commit\n"));
1757                } else if (!s->show_untracked_files) {
1758                        if (s->hints)
1759                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1760                        else
1761                                printf(_("nothing to commit\n"));
1762                } else
1763                        printf(_("nothing to commit, working tree clean\n"));
1764        }
1765        if(s->show_stash)
1766                wt_longstatus_print_stash_summary(s);
1767}
1768
1769static void wt_shortstatus_unmerged(struct string_list_item *it,
1770                           struct wt_status *s)
1771{
1772        struct wt_status_change_data *d = it->util;
1773        const char *how = "??";
1774
1775        switch (d->stagemask) {
1776        case 1: how = "DD"; break; /* both deleted */
1777        case 2: how = "AU"; break; /* added by us */
1778        case 3: how = "UD"; break; /* deleted by them */
1779        case 4: how = "UA"; break; /* added by them */
1780        case 5: how = "DU"; break; /* deleted by us */
1781        case 6: how = "AA"; break; /* both added */
1782        case 7: how = "UU"; break; /* both modified */
1783        }
1784        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1785        if (s->null_termination) {
1786                fprintf(stdout, " %s%c", it->string, 0);
1787        } else {
1788                struct strbuf onebuf = STRBUF_INIT;
1789                const char *one;
1790                one = quote_path(it->string, s->prefix, &onebuf);
1791                printf(" %s\n", one);
1792                strbuf_release(&onebuf);
1793        }
1794}
1795
1796static void wt_shortstatus_status(struct string_list_item *it,
1797                         struct wt_status *s)
1798{
1799        struct wt_status_change_data *d = it->util;
1800
1801        if (d->index_status)
1802                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1803        else
1804                putchar(' ');
1805        if (d->worktree_status)
1806                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1807        else
1808                putchar(' ');
1809        putchar(' ');
1810        if (s->null_termination) {
1811                fprintf(stdout, "%s%c", it->string, 0);
1812                if (d->rename_source)
1813                        fprintf(stdout, "%s%c", d->rename_source, 0);
1814        } else {
1815                struct strbuf onebuf = STRBUF_INIT;
1816                const char *one;
1817
1818                if (d->rename_source) {
1819                        one = quote_path(d->rename_source, s->prefix, &onebuf);
1820                        if (*one != '"' && strchr(one, ' ') != NULL) {
1821                                putchar('"');
1822                                strbuf_addch(&onebuf, '"');
1823                                one = onebuf.buf;
1824                        }
1825                        printf("%s -> ", one);
1826                        strbuf_release(&onebuf);
1827                }
1828                one = quote_path(it->string, s->prefix, &onebuf);
1829                if (*one != '"' && strchr(one, ' ') != NULL) {
1830                        putchar('"');
1831                        strbuf_addch(&onebuf, '"');
1832                        one = onebuf.buf;
1833                }
1834                printf("%s\n", one);
1835                strbuf_release(&onebuf);
1836        }
1837}
1838
1839static void wt_shortstatus_other(struct string_list_item *it,
1840                                 struct wt_status *s, const char *sign)
1841{
1842        if (s->null_termination) {
1843                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1844        } else {
1845                struct strbuf onebuf = STRBUF_INIT;
1846                const char *one;
1847                one = quote_path(it->string, s->prefix, &onebuf);
1848                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1849                printf(" %s\n", one);
1850                strbuf_release(&onebuf);
1851        }
1852}
1853
1854static void wt_shortstatus_print_tracking(struct wt_status *s)
1855{
1856        struct branch *branch;
1857        const char *header_color = color(WT_STATUS_HEADER, s);
1858        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1859        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1860
1861        const char *base;
1862        char *short_base;
1863        const char *branch_name;
1864        int num_ours, num_theirs, sti;
1865        int upstream_is_gone = 0;
1866
1867        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1868
1869        if (!s->branch)
1870                return;
1871        branch_name = s->branch;
1872
1873#define LABEL(string) (s->no_gettext ? (string) : _(string))
1874
1875        if (s->is_initial)
1876                color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
1877
1878        if (!strcmp(s->branch, "HEAD")) {
1879                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1880                              LABEL(N_("HEAD (no branch)")));
1881                goto conclude;
1882        }
1883
1884        skip_prefix(branch_name, "refs/heads/", &branch_name);
1885
1886        branch = branch_get(branch_name);
1887
1888        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1889
1890        sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
1891                                 0, s->ahead_behind_flags);
1892        if (sti < 0) {
1893                if (!base)
1894                        goto conclude;
1895
1896                upstream_is_gone = 1;
1897        }
1898
1899        short_base = shorten_unambiguous_ref(base, 0);
1900        color_fprintf(s->fp, header_color, "...");
1901        color_fprintf(s->fp, branch_color_remote, "%s", short_base);
1902        free(short_base);
1903
1904        if (!upstream_is_gone && !sti)
1905                goto conclude;
1906
1907        color_fprintf(s->fp, header_color, " [");
1908        if (upstream_is_gone) {
1909                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1910        } else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
1911                color_fprintf(s->fp, header_color, LABEL(N_("different")));
1912        } else if (!num_ours) {
1913                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1914                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1915        } else if (!num_theirs) {
1916                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1917                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1918        } else {
1919                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1920                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1921                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1922                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1923        }
1924
1925        color_fprintf(s->fp, header_color, "]");
1926 conclude:
1927        fputc(s->null_termination ? '\0' : '\n', s->fp);
1928}
1929
1930static void wt_shortstatus_print(struct wt_status *s)
1931{
1932        struct string_list_item *it;
1933
1934        if (s->show_branch)
1935                wt_shortstatus_print_tracking(s);
1936
1937        for_each_string_list_item(it, &s->change) {
1938                struct wt_status_change_data *d = it->util;
1939
1940                if (d->stagemask)
1941                        wt_shortstatus_unmerged(it, s);
1942                else
1943                        wt_shortstatus_status(it, s);
1944        }
1945        for_each_string_list_item(it, &s->untracked)
1946                wt_shortstatus_other(it, s, "??");
1947
1948        for_each_string_list_item(it, &s->ignored)
1949                wt_shortstatus_other(it, s, "!!");
1950}
1951
1952static void wt_porcelain_print(struct wt_status *s)
1953{
1954        s->use_color = 0;
1955        s->relative_paths = 0;
1956        s->prefix = NULL;
1957        s->no_gettext = 1;
1958        wt_shortstatus_print(s);
1959}
1960
1961/*
1962 * Print branch information for porcelain v2 output.  These lines
1963 * are printed when the '--branch' parameter is given.
1964 *
1965 *    # branch.oid <commit><eol>
1966 *    # branch.head <head><eol>
1967 *   [# branch.upstream <upstream><eol>
1968 *   [# branch.ab +<ahead> -<behind><eol>]]
1969 *
1970 *      <commit> ::= the current commit hash or the the literal
1971 *                   "(initial)" to indicate an initialized repo
1972 *                   with no commits.
1973 *
1974 *        <head> ::= <branch_name> the current branch name or
1975 *                   "(detached)" literal when detached head or
1976 *                   "(unknown)" when something is wrong.
1977 *
1978 *    <upstream> ::= the upstream branch name, when set.
1979 *
1980 *       <ahead> ::= integer ahead value or '?'.
1981 *
1982 *      <behind> ::= integer behind value or '?'.
1983 *
1984 * The end-of-line is defined by the -z flag.
1985 *
1986 *                 <eol> ::= NUL when -z,
1987 *                           LF when NOT -z.
1988 *
1989 * When an upstream is set and present, the 'branch.ab' line will
1990 * be printed with the ahead/behind counts for the branch and the
1991 * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
1992 * are different, '?' will be substituted for the actual count.
1993 */
1994static void wt_porcelain_v2_print_tracking(struct wt_status *s)
1995{
1996        struct branch *branch;
1997        const char *base;
1998        const char *branch_name;
1999        int ab_info, nr_ahead, nr_behind;
2000        char eol = s->null_termination ? '\0' : '\n';
2001
2002        fprintf(s->fp, "# branch.oid %s%c",
2003                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
2004                        eol);
2005
2006        if (!s->branch)
2007                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
2008        else {
2009                if (!strcmp(s->branch, "HEAD")) {
2010                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
2011
2012                        if (s->state.rebase_in_progress ||
2013                            s->state.rebase_interactive_in_progress)
2014                                branch_name = s->state.onto;
2015                        else if (s->state.detached_from)
2016                                branch_name = s->state.detached_from;
2017                        else
2018                                branch_name = "";
2019                } else {
2020                        branch_name = NULL;
2021                        skip_prefix(s->branch, "refs/heads/", &branch_name);
2022
2023                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
2024                }
2025
2026                /* Lookup stats on the upstream tracking branch, if set. */
2027                branch = branch_get(branch_name);
2028                base = NULL;
2029                ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
2030                                             &base, 0, s->ahead_behind_flags);
2031                if (base) {
2032                        base = shorten_unambiguous_ref(base, 0);
2033                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
2034                        free((char *)base);
2035
2036                        if (ab_info > 0) {
2037                                /* different */
2038                                if (nr_ahead || nr_behind)
2039                                        fprintf(s->fp, "# branch.ab +%d -%d%c",
2040                                                nr_ahead, nr_behind, eol);
2041                                else
2042                                        fprintf(s->fp, "# branch.ab +? -?%c",
2043                                                eol);
2044                        } else if (!ab_info) {
2045                                /* same */
2046                                fprintf(s->fp, "# branch.ab +0 -0%c", eol);
2047                        }
2048                }
2049        }
2050}
2051
2052/*
2053 * Convert various submodule status values into a
2054 * fixed-length string of characters in the buffer provided.
2055 */
2056static void wt_porcelain_v2_submodule_state(
2057        struct wt_status_change_data *d,
2058        char sub[5])
2059{
2060        if (S_ISGITLINK(d->mode_head) ||
2061                S_ISGITLINK(d->mode_index) ||
2062                S_ISGITLINK(d->mode_worktree)) {
2063                sub[0] = 'S';
2064                sub[1] = d->new_submodule_commits ? 'C' : '.';
2065                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2066                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2067        } else {
2068                sub[0] = 'N';
2069                sub[1] = '.';
2070                sub[2] = '.';
2071                sub[3] = '.';
2072        }
2073        sub[4] = 0;
2074}
2075
2076/*
2077 * Fix-up changed entries before we print them.
2078 */
2079static void wt_porcelain_v2_fix_up_changed(
2080        struct string_list_item *it,
2081        struct wt_status *s)
2082{
2083        struct wt_status_change_data *d = it->util;
2084
2085        if (!d->index_status) {
2086                /*
2087                 * This entry is unchanged in the index (relative to the head).
2088                 * Therefore, the collect_updated_cb was never called for this
2089                 * entry (during the head-vs-index scan) and so the head column
2090                 * fields were never set.
2091                 *
2092                 * We must have data for the index column (from the
2093                 * index-vs-worktree scan (otherwise, this entry should not be
2094                 * in the list of changes)).
2095                 *
2096                 * Copy index column fields to the head column, so that our
2097                 * output looks complete.
2098                 */
2099                assert(d->mode_head == 0);
2100                d->mode_head = d->mode_index;
2101                oidcpy(&d->oid_head, &d->oid_index);
2102        }
2103
2104        if (!d->worktree_status) {
2105                /*
2106                 * This entry is unchanged in the worktree (relative to the index).
2107                 * Therefore, the collect_changed_cb was never called for this entry
2108                 * (during the index-vs-worktree scan) and so the worktree column
2109                 * fields were never set.
2110                 *
2111                 * We must have data for the index column (from the head-vs-index
2112                 * scan).
2113                 *
2114                 * Copy the index column fields to the worktree column so that
2115                 * our output looks complete.
2116                 *
2117                 * Note that we only have a mode field in the worktree column
2118                 * because the scan code tries really hard to not have to compute it.
2119                 */
2120                assert(d->mode_worktree == 0);
2121                d->mode_worktree = d->mode_index;
2122        }
2123}
2124
2125/*
2126 * Print porcelain v2 info for tracked entries with changes.
2127 */
2128static void wt_porcelain_v2_print_changed_entry(
2129        struct string_list_item *it,
2130        struct wt_status *s)
2131{
2132        struct wt_status_change_data *d = it->util;
2133        struct strbuf buf = STRBUF_INIT;
2134        struct strbuf buf_from = STRBUF_INIT;
2135        const char *path = NULL;
2136        const char *path_from = NULL;
2137        char key[3];
2138        char submodule_token[5];
2139        char sep_char, eol_char;
2140
2141        wt_porcelain_v2_fix_up_changed(it, s);
2142        wt_porcelain_v2_submodule_state(d, submodule_token);
2143
2144        key[0] = d->index_status ? d->index_status : '.';
2145        key[1] = d->worktree_status ? d->worktree_status : '.';
2146        key[2] = 0;
2147
2148        if (s->null_termination) {
2149                /*
2150                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2151                 * A single NUL character separates them.
2152                 */
2153                sep_char = '\0';
2154                eol_char = '\0';
2155                path = it->string;
2156                path_from = d->rename_source;
2157        } else {
2158                /*
2159                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2160                 * The source path is only present when necessary.
2161                 * A single TAB separates them (because paths can contain spaces
2162                 * which are not escaped and C-quoting does escape TAB characters).
2163                 */
2164                sep_char = '\t';
2165                eol_char = '\n';
2166                path = quote_path(it->string, s->prefix, &buf);
2167                if (d->rename_source)
2168                        path_from = quote_path(d->rename_source, s->prefix, &buf_from);
2169        }
2170
2171        if (path_from)
2172                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2173                                key, submodule_token,
2174                                d->mode_head, d->mode_index, d->mode_worktree,
2175                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2176                                d->rename_status, d->rename_score,
2177                                path, sep_char, path_from, eol_char);
2178        else
2179                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2180                                key, submodule_token,
2181                                d->mode_head, d->mode_index, d->mode_worktree,
2182                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2183                                path, eol_char);
2184
2185        strbuf_release(&buf);
2186        strbuf_release(&buf_from);
2187}
2188
2189/*
2190 * Print porcelain v2 status info for unmerged entries.
2191 */
2192static void wt_porcelain_v2_print_unmerged_entry(
2193        struct string_list_item *it,
2194        struct wt_status *s)
2195{
2196        struct wt_status_change_data *d = it->util;
2197        struct index_state *istate = s->repo->index;
2198        const struct cache_entry *ce;
2199        struct strbuf buf_index = STRBUF_INIT;
2200        const char *path_index = NULL;
2201        int pos, stage, sum;
2202        struct {
2203                int mode;
2204                struct object_id oid;
2205        } stages[3];
2206        char *key;
2207        char submodule_token[5];
2208        char unmerged_prefix = 'u';
2209        char eol_char = s->null_termination ? '\0' : '\n';
2210
2211        wt_porcelain_v2_submodule_state(d, submodule_token);
2212
2213        switch (d->stagemask) {
2214        case 1: key = "DD"; break; /* both deleted */
2215        case 2: key = "AU"; break; /* added by us */
2216        case 3: key = "UD"; break; /* deleted by them */
2217        case 4: key = "UA"; break; /* added by them */
2218        case 5: key = "DU"; break; /* deleted by us */
2219        case 6: key = "AA"; break; /* both added */
2220        case 7: key = "UU"; break; /* both modified */
2221        default:
2222                BUG("unhandled unmerged status %x", d->stagemask);
2223        }
2224
2225        /*
2226         * Disregard d.aux.porcelain_v2 data that we accumulated
2227         * for the head and index columns during the scans and
2228         * replace with the actual stage data.
2229         *
2230         * Note that this is a last-one-wins for each the individual
2231         * stage [123] columns in the event of multiple cache entries
2232         * for same stage.
2233         */
2234        memset(stages, 0, sizeof(stages));
2235        sum = 0;
2236        pos = index_name_pos(istate, it->string, strlen(it->string));
2237        assert(pos < 0);
2238        pos = -pos-1;
2239        while (pos < istate->cache_nr) {
2240                ce = istate->cache[pos++];
2241                stage = ce_stage(ce);
2242                if (strcmp(ce->name, it->string) || !stage)
2243                        break;
2244                stages[stage - 1].mode = ce->ce_mode;
2245                oidcpy(&stages[stage - 1].oid, &ce->oid);
2246                sum |= (1 << (stage - 1));
2247        }
2248        if (sum != d->stagemask)
2249                BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2250
2251        if (s->null_termination)
2252                path_index = it->string;
2253        else
2254                path_index = quote_path(it->string, s->prefix, &buf_index);
2255
2256        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2257                        unmerged_prefix, key, submodule_token,
2258                        stages[0].mode, /* stage 1 */
2259                        stages[1].mode, /* stage 2 */
2260                        stages[2].mode, /* stage 3 */
2261                        d->mode_worktree,
2262                        oid_to_hex(&stages[0].oid), /* stage 1 */
2263                        oid_to_hex(&stages[1].oid), /* stage 2 */
2264                        oid_to_hex(&stages[2].oid), /* stage 3 */
2265                        path_index,
2266                        eol_char);
2267
2268        strbuf_release(&buf_index);
2269}
2270
2271/*
2272 * Print porcelain V2 status info for untracked and ignored entries.
2273 */
2274static void wt_porcelain_v2_print_other(
2275        struct string_list_item *it,
2276        struct wt_status *s,
2277        char prefix)
2278{
2279        struct strbuf buf = STRBUF_INIT;
2280        const char *path;
2281        char eol_char;
2282
2283        if (s->null_termination) {
2284                path = it->string;
2285                eol_char = '\0';
2286        } else {
2287                path = quote_path(it->string, s->prefix, &buf);
2288                eol_char = '\n';
2289        }
2290
2291        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2292
2293        strbuf_release(&buf);
2294}
2295
2296/*
2297 * Print porcelain V2 status.
2298 *
2299 * [<v2_branch>]
2300 * [<v2_changed_items>]*
2301 * [<v2_unmerged_items>]*
2302 * [<v2_untracked_items>]*
2303 * [<v2_ignored_items>]*
2304 *
2305 */
2306static void wt_porcelain_v2_print(struct wt_status *s)
2307{
2308        struct wt_status_change_data *d;
2309        struct string_list_item *it;
2310        int i;
2311
2312        if (s->show_branch)
2313                wt_porcelain_v2_print_tracking(s);
2314
2315        for (i = 0; i < s->change.nr; i++) {
2316                it = &(s->change.items[i]);
2317                d = it->util;
2318                if (!d->stagemask)
2319                        wt_porcelain_v2_print_changed_entry(it, s);
2320        }
2321
2322        for (i = 0; i < s->change.nr; i++) {
2323                it = &(s->change.items[i]);
2324                d = it->util;
2325                if (d->stagemask)
2326                        wt_porcelain_v2_print_unmerged_entry(it, s);
2327        }
2328
2329        for (i = 0; i < s->untracked.nr; i++) {
2330                it = &(s->untracked.items[i]);
2331                wt_porcelain_v2_print_other(it, s, '?');
2332        }
2333
2334        for (i = 0; i < s->ignored.nr; i++) {
2335                it = &(s->ignored.items[i]);
2336                wt_porcelain_v2_print_other(it, s, '!');
2337        }
2338}
2339
2340void wt_status_print(struct wt_status *s)
2341{
2342        trace2_data_intmax("status", s->repo, "count/changed", s->change.nr);
2343        trace2_data_intmax("status", s->repo, "count/untracked",
2344                           s->untracked.nr);
2345        trace2_data_intmax("status", s->repo, "count/ignored", s->ignored.nr);
2346
2347        trace2_region_enter("status", "print", s->repo);
2348
2349        switch (s->status_format) {
2350        case STATUS_FORMAT_SHORT:
2351                wt_shortstatus_print(s);
2352                break;
2353        case STATUS_FORMAT_PORCELAIN:
2354                wt_porcelain_print(s);
2355                break;
2356        case STATUS_FORMAT_PORCELAIN_V2:
2357                wt_porcelain_v2_print(s);
2358                break;
2359        case STATUS_FORMAT_UNSPECIFIED:
2360                BUG("finalize_deferred_config() should have been called");
2361                break;
2362        case STATUS_FORMAT_NONE:
2363        case STATUS_FORMAT_LONG:
2364                wt_longstatus_print(s);
2365                break;
2366        }
2367
2368        trace2_region_leave("status", "print", s->repo);
2369}
2370
2371/**
2372 * Returns 1 if there are unstaged changes, 0 otherwise.
2373 */
2374int has_unstaged_changes(struct repository *r, int ignore_submodules)
2375{
2376        struct rev_info rev_info;
2377        int result;
2378
2379        repo_init_revisions(r, &rev_info, NULL);
2380        if (ignore_submodules) {
2381                rev_info.diffopt.flags.ignore_submodules = 1;
2382                rev_info.diffopt.flags.override_submodule_config = 1;
2383        }
2384        rev_info.diffopt.flags.quick = 1;
2385        diff_setup_done(&rev_info.diffopt);
2386        result = run_diff_files(&rev_info, 0);
2387        return diff_result_code(&rev_info.diffopt, result);
2388}
2389
2390/**
2391 * Returns 1 if there are uncommitted changes, 0 otherwise.
2392 */
2393int has_uncommitted_changes(struct repository *r,
2394                            int ignore_submodules)
2395{
2396        struct rev_info rev_info;
2397        int result;
2398
2399        if (is_index_unborn(r->index))
2400                return 0;
2401
2402        repo_init_revisions(r, &rev_info, NULL);
2403        if (ignore_submodules)
2404                rev_info.diffopt.flags.ignore_submodules = 1;
2405        rev_info.diffopt.flags.quick = 1;
2406
2407        add_head_to_pending(&rev_info);
2408        if (!rev_info.pending.nr) {
2409                /*
2410                 * We have no head (or it's corrupt); use the empty tree,
2411                 * which will complain if the index is non-empty.
2412                 */
2413                struct tree *tree = lookup_tree(r, the_hash_algo->empty_tree);
2414                add_pending_object(&rev_info, &tree->object, "");
2415        }
2416
2417        diff_setup_done(&rev_info.diffopt);
2418        result = run_diff_index(&rev_info, 1);
2419        return diff_result_code(&rev_info.diffopt, result);
2420}
2421
2422/**
2423 * If the work tree has unstaged or uncommitted changes, dies with the
2424 * appropriate message.
2425 */
2426int require_clean_work_tree(struct repository *r,
2427                            const char *action,
2428                            const char *hint,
2429                            int ignore_submodules,
2430                            int gently)
2431{
2432        struct lock_file lock_file = LOCK_INIT;
2433        int err = 0, fd;
2434
2435        fd = repo_hold_locked_index(r, &lock_file, 0);
2436        refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
2437        if (0 <= fd)
2438                repo_update_index_if_able(r, &lock_file);
2439        rollback_lock_file(&lock_file);
2440
2441        if (has_unstaged_changes(r, ignore_submodules)) {
2442                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2443                error(_("cannot %s: You have unstaged changes."), _(action));
2444                err = 1;
2445        }
2446
2447        if (has_uncommitted_changes(r, ignore_submodules)) {
2448                if (err)
2449                        error(_("additionally, your index contains uncommitted changes."));
2450                else
2451                        error(_("cannot %s: Your index contains uncommitted changes."),
2452                              _(action));
2453                err = 1;
2454        }
2455
2456        if (err) {
2457                if (hint)
2458                        error("%s", hint);
2459                if (!gently)
2460                        exit(128);
2461        }
2462
2463        return err;
2464}