wt-status.con commit mergetool: take the "-O" out of $orderfile (c1b0d3a)
   1#include "cache.h"
   2#include "wt-status.h"
   3#include "object.h"
   4#include "dir.h"
   5#include "commit.h"
   6#include "diff.h"
   7#include "revision.h"
   8#include "diffcore.h"
   9#include "quote.h"
  10#include "run-command.h"
  11#include "argv-array.h"
  12#include "remote.h"
  13#include "refs.h"
  14#include "submodule.h"
  15#include "column.h"
  16#include "strbuf.h"
  17#include "utf8.h"
  18#include "worktree.h"
  19#include "lockfile.h"
  20
  21static const char cut_line[] =
  22"------------------------ >8 ------------------------\n";
  23
  24static char default_wt_status_colors[][COLOR_MAXLEN] = {
  25        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  26        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  27        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  28        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  29        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  30        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  31        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  32        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  33        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  34};
  35
  36static const char *color(int slot, struct wt_status *s)
  37{
  38        const char *c = "";
  39        if (want_color(s->use_color))
  40                c = s->color_palette[slot];
  41        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  42                c = s->color_palette[WT_STATUS_HEADER];
  43        return c;
  44}
  45
  46static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  47                const char *fmt, va_list ap, const char *trail)
  48{
  49        struct strbuf sb = STRBUF_INIT;
  50        struct strbuf linebuf = STRBUF_INIT;
  51        const char *line, *eol;
  52
  53        strbuf_vaddf(&sb, fmt, ap);
  54        if (!sb.len) {
  55                if (s->display_comment_prefix) {
  56                        strbuf_addch(&sb, comment_line_char);
  57                        if (!trail)
  58                                strbuf_addch(&sb, ' ');
  59                }
  60                color_print_strbuf(s->fp, color, &sb);
  61                if (trail)
  62                        fprintf(s->fp, "%s", trail);
  63                strbuf_release(&sb);
  64                return;
  65        }
  66        for (line = sb.buf; *line; line = eol + 1) {
  67                eol = strchr(line, '\n');
  68
  69                strbuf_reset(&linebuf);
  70                if (at_bol && s->display_comment_prefix) {
  71                        strbuf_addch(&linebuf, comment_line_char);
  72                        if (*line != '\n' && *line != '\t')
  73                                strbuf_addch(&linebuf, ' ');
  74                }
  75                if (eol)
  76                        strbuf_add(&linebuf, line, eol - line);
  77                else
  78                        strbuf_addstr(&linebuf, line);
  79                color_print_strbuf(s->fp, color, &linebuf);
  80                if (eol)
  81                        fprintf(s->fp, "\n");
  82                else
  83                        break;
  84                at_bol = 1;
  85        }
  86        if (trail)
  87                fprintf(s->fp, "%s", trail);
  88        strbuf_release(&linebuf);
  89        strbuf_release(&sb);
  90}
  91
  92void status_printf_ln(struct wt_status *s, const char *color,
  93                        const char *fmt, ...)
  94{
  95        va_list ap;
  96
  97        va_start(ap, fmt);
  98        status_vprintf(s, 1, color, fmt, ap, "\n");
  99        va_end(ap);
 100}
 101
 102void status_printf(struct wt_status *s, const char *color,
 103                        const char *fmt, ...)
 104{
 105        va_list ap;
 106
 107        va_start(ap, fmt);
 108        status_vprintf(s, 1, color, fmt, ap, NULL);
 109        va_end(ap);
 110}
 111
 112static void status_printf_more(struct wt_status *s, const char *color,
 113                               const char *fmt, ...)
 114{
 115        va_list ap;
 116
 117        va_start(ap, fmt);
 118        status_vprintf(s, 0, color, fmt, ap, NULL);
 119        va_end(ap);
 120}
 121
 122void wt_status_prepare(struct wt_status *s)
 123{
 124        unsigned char sha1[20];
 125
 126        memset(s, 0, sizeof(*s));
 127        memcpy(s->color_palette, default_wt_status_colors,
 128               sizeof(default_wt_status_colors));
 129        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 130        s->use_color = -1;
 131        s->relative_paths = 1;
 132        s->branch = resolve_refdup("HEAD", 0, sha1, NULL);
 133        s->reference = "HEAD";
 134        s->fp = stdout;
 135        s->index_file = get_index_file();
 136        s->change.strdup_strings = 1;
 137        s->untracked.strdup_strings = 1;
 138        s->ignored.strdup_strings = 1;
 139        s->show_branch = -1;  /* unspecified */
 140        s->display_comment_prefix = 0;
 141}
 142
 143static void wt_longstatus_print_unmerged_header(struct wt_status *s)
 144{
 145        int i;
 146        int del_mod_conflict = 0;
 147        int both_deleted = 0;
 148        int not_deleted = 0;
 149        const char *c = color(WT_STATUS_HEADER, s);
 150
 151        status_printf_ln(s, c, _("Unmerged paths:"));
 152
 153        for (i = 0; i < s->change.nr; i++) {
 154                struct string_list_item *it = &(s->change.items[i]);
 155                struct wt_status_change_data *d = it->util;
 156
 157                switch (d->stagemask) {
 158                case 0:
 159                        break;
 160                case 1:
 161                        both_deleted = 1;
 162                        break;
 163                case 3:
 164                case 5:
 165                        del_mod_conflict = 1;
 166                        break;
 167                default:
 168                        not_deleted = 1;
 169                        break;
 170                }
 171        }
 172
 173        if (!s->hints)
 174                return;
 175        if (s->whence != FROM_COMMIT)
 176                ;
 177        else if (!s->is_initial)
 178                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 179        else
 180                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 181
 182        if (!both_deleted) {
 183                if (!del_mod_conflict)
 184                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 185                else
 186                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 187        } else if (!del_mod_conflict && !not_deleted) {
 188                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 189        } else {
 190                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 191        }
 192        status_printf_ln(s, c, "%s", "");
 193}
 194
 195static void wt_longstatus_print_cached_header(struct wt_status *s)
 196{
 197        const char *c = color(WT_STATUS_HEADER, s);
 198
 199        status_printf_ln(s, c, _("Changes to be committed:"));
 200        if (!s->hints)
 201                return;
 202        if (s->whence != FROM_COMMIT)
 203                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 204        else if (!s->is_initial)
 205                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 206        else
 207                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 208        status_printf_ln(s, c, "%s", "");
 209}
 210
 211static void wt_longstatus_print_dirty_header(struct wt_status *s,
 212                                             int has_deleted,
 213                                             int has_dirty_submodules)
 214{
 215        const char *c = color(WT_STATUS_HEADER, s);
 216
 217        status_printf_ln(s, c, _("Changes not staged for commit:"));
 218        if (!s->hints)
 219                return;
 220        if (!has_deleted)
 221                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 222        else
 223                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 224        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 225        if (has_dirty_submodules)
 226                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 227        status_printf_ln(s, c, "%s", "");
 228}
 229
 230static void wt_longstatus_print_other_header(struct wt_status *s,
 231                                             const char *what,
 232                                             const char *how)
 233{
 234        const char *c = color(WT_STATUS_HEADER, s);
 235        status_printf_ln(s, c, "%s:", what);
 236        if (!s->hints)
 237                return;
 238        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 239        status_printf_ln(s, c, "%s", "");
 240}
 241
 242static void wt_longstatus_print_trailer(struct wt_status *s)
 243{
 244        status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 245}
 246
 247#define quote_path quote_path_relative
 248
 249static const char *wt_status_unmerged_status_string(int stagemask)
 250{
 251        switch (stagemask) {
 252        case 1:
 253                return _("both deleted:");
 254        case 2:
 255                return _("added by us:");
 256        case 3:
 257                return _("deleted by them:");
 258        case 4:
 259                return _("added by them:");
 260        case 5:
 261                return _("deleted by us:");
 262        case 6:
 263                return _("both added:");
 264        case 7:
 265                return _("both modified:");
 266        default:
 267                die("BUG: unhandled unmerged status %x", stagemask);
 268        }
 269}
 270
 271static const char *wt_status_diff_status_string(int status)
 272{
 273        switch (status) {
 274        case DIFF_STATUS_ADDED:
 275                return _("new file:");
 276        case DIFF_STATUS_COPIED:
 277                return _("copied:");
 278        case DIFF_STATUS_DELETED:
 279                return _("deleted:");
 280        case DIFF_STATUS_MODIFIED:
 281                return _("modified:");
 282        case DIFF_STATUS_RENAMED:
 283                return _("renamed:");
 284        case DIFF_STATUS_TYPE_CHANGED:
 285                return _("typechange:");
 286        case DIFF_STATUS_UNKNOWN:
 287                return _("unknown:");
 288        case DIFF_STATUS_UNMERGED:
 289                return _("unmerged:");
 290        default:
 291                return NULL;
 292        }
 293}
 294
 295static int maxwidth(const char *(*label)(int), int minval, int maxval)
 296{
 297        int result = 0, i;
 298
 299        for (i = minval; i <= maxval; i++) {
 300                const char *s = label(i);
 301                int len = s ? utf8_strwidth(s) : 0;
 302                if (len > result)
 303                        result = len;
 304        }
 305        return result;
 306}
 307
 308static void wt_longstatus_print_unmerged_data(struct wt_status *s,
 309                                              struct string_list_item *it)
 310{
 311        const char *c = color(WT_STATUS_UNMERGED, s);
 312        struct wt_status_change_data *d = it->util;
 313        struct strbuf onebuf = STRBUF_INIT;
 314        static char *padding;
 315        static int label_width;
 316        const char *one, *how;
 317        int len;
 318
 319        if (!padding) {
 320                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 321                label_width += strlen(" ");
 322                padding = xmallocz(label_width);
 323                memset(padding, ' ', label_width);
 324        }
 325
 326        one = quote_path(it->string, s->prefix, &onebuf);
 327        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 328
 329        how = wt_status_unmerged_status_string(d->stagemask);
 330        len = label_width - utf8_strwidth(how);
 331        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 332        strbuf_release(&onebuf);
 333}
 334
 335static void wt_longstatus_print_change_data(struct wt_status *s,
 336                                            int change_type,
 337                                            struct string_list_item *it)
 338{
 339        struct wt_status_change_data *d = it->util;
 340        const char *c = color(change_type, s);
 341        int status;
 342        char *one_name;
 343        char *two_name;
 344        const char *one, *two;
 345        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 346        struct strbuf extra = STRBUF_INIT;
 347        static char *padding;
 348        static int label_width;
 349        const char *what;
 350        int len;
 351
 352        if (!padding) {
 353                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 354                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 355                label_width += strlen(" ");
 356                padding = xmallocz(label_width);
 357                memset(padding, ' ', label_width);
 358        }
 359
 360        one_name = two_name = it->string;
 361        switch (change_type) {
 362        case WT_STATUS_UPDATED:
 363                status = d->index_status;
 364                if (d->head_path)
 365                        one_name = d->head_path;
 366                break;
 367        case WT_STATUS_CHANGED:
 368                if (d->new_submodule_commits || d->dirty_submodule) {
 369                        strbuf_addstr(&extra, " (");
 370                        if (d->new_submodule_commits)
 371                                strbuf_addstr(&extra, _("new commits, "));
 372                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 373                                strbuf_addstr(&extra, _("modified content, "));
 374                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 375                                strbuf_addstr(&extra, _("untracked content, "));
 376                        strbuf_setlen(&extra, extra.len - 2);
 377                        strbuf_addch(&extra, ')');
 378                }
 379                status = d->worktree_status;
 380                break;
 381        default:
 382                die("BUG: unhandled change_type %d in wt_longstatus_print_change_data",
 383                    change_type);
 384        }
 385
 386        one = quote_path(one_name, s->prefix, &onebuf);
 387        two = quote_path(two_name, s->prefix, &twobuf);
 388
 389        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 390        what = wt_status_diff_status_string(status);
 391        if (!what)
 392                die("BUG: unhandled diff status %c", status);
 393        len = label_width - utf8_strwidth(what);
 394        assert(len >= 0);
 395        if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 396                status_printf_more(s, c, "%s%.*s%s -> %s",
 397                                   what, len, padding, one, two);
 398        else
 399                status_printf_more(s, c, "%s%.*s%s",
 400                                   what, len, padding, one);
 401        if (extra.len) {
 402                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 403                strbuf_release(&extra);
 404        }
 405        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 406        strbuf_release(&onebuf);
 407        strbuf_release(&twobuf);
 408}
 409
 410static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 411                                         struct diff_options *options,
 412                                         void *data)
 413{
 414        struct wt_status *s = data;
 415        int i;
 416
 417        if (!q->nr)
 418                return;
 419        s->workdir_dirty = 1;
 420        for (i = 0; i < q->nr; i++) {
 421                struct diff_filepair *p;
 422                struct string_list_item *it;
 423                struct wt_status_change_data *d;
 424
 425                p = q->queue[i];
 426                it = string_list_insert(&s->change, p->one->path);
 427                d = it->util;
 428                if (!d) {
 429                        d = xcalloc(1, sizeof(*d));
 430                        it->util = d;
 431                }
 432                if (!d->worktree_status)
 433                        d->worktree_status = p->status;
 434                d->dirty_submodule = p->two->dirty_submodule;
 435                if (S_ISGITLINK(p->two->mode))
 436                        d->new_submodule_commits = !!oidcmp(&p->one->oid,
 437                                                            &p->two->oid);
 438
 439                switch (p->status) {
 440                case DIFF_STATUS_ADDED:
 441                        d->mode_worktree = p->two->mode;
 442                        break;
 443
 444                case DIFF_STATUS_DELETED:
 445                        d->mode_index = p->one->mode;
 446                        oidcpy(&d->oid_index, &p->one->oid);
 447                        /* mode_worktree is zero for a delete. */
 448                        break;
 449
 450                case DIFF_STATUS_MODIFIED:
 451                case DIFF_STATUS_TYPE_CHANGED:
 452                case DIFF_STATUS_UNMERGED:
 453                        d->mode_index = p->one->mode;
 454                        d->mode_worktree = p->two->mode;
 455                        oidcpy(&d->oid_index, &p->one->oid);
 456                        break;
 457
 458                case DIFF_STATUS_UNKNOWN:
 459                        die("BUG: worktree status unknown???");
 460                        break;
 461                }
 462
 463        }
 464}
 465
 466static int unmerged_mask(const char *path)
 467{
 468        int pos, mask;
 469        const struct cache_entry *ce;
 470
 471        pos = cache_name_pos(path, strlen(path));
 472        if (0 <= pos)
 473                return 0;
 474
 475        mask = 0;
 476        pos = -pos-1;
 477        while (pos < active_nr) {
 478                ce = active_cache[pos++];
 479                if (strcmp(ce->name, path) || !ce_stage(ce))
 480                        break;
 481                mask |= (1 << (ce_stage(ce) - 1));
 482        }
 483        return mask;
 484}
 485
 486static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 487                                         struct diff_options *options,
 488                                         void *data)
 489{
 490        struct wt_status *s = data;
 491        int i;
 492
 493        for (i = 0; i < q->nr; i++) {
 494                struct diff_filepair *p;
 495                struct string_list_item *it;
 496                struct wt_status_change_data *d;
 497
 498                p = q->queue[i];
 499                it = string_list_insert(&s->change, p->two->path);
 500                d = it->util;
 501                if (!d) {
 502                        d = xcalloc(1, sizeof(*d));
 503                        it->util = d;
 504                }
 505                if (!d->index_status)
 506                        d->index_status = p->status;
 507                switch (p->status) {
 508                case DIFF_STATUS_ADDED:
 509                        /* Leave {mode,oid}_head zero for an add. */
 510                        d->mode_index = p->two->mode;
 511                        oidcpy(&d->oid_index, &p->two->oid);
 512                        break;
 513                case DIFF_STATUS_DELETED:
 514                        d->mode_head = p->one->mode;
 515                        oidcpy(&d->oid_head, &p->one->oid);
 516                        /* Leave {mode,oid}_index zero for a delete. */
 517                        break;
 518
 519                case DIFF_STATUS_COPIED:
 520                case DIFF_STATUS_RENAMED:
 521                        d->head_path = xstrdup(p->one->path);
 522                        d->score = p->score * 100 / MAX_SCORE;
 523                        /* fallthru */
 524                case DIFF_STATUS_MODIFIED:
 525                case DIFF_STATUS_TYPE_CHANGED:
 526                        d->mode_head = p->one->mode;
 527                        d->mode_index = p->two->mode;
 528                        oidcpy(&d->oid_head, &p->one->oid);
 529                        oidcpy(&d->oid_index, &p->two->oid);
 530                        break;
 531                case DIFF_STATUS_UNMERGED:
 532                        d->stagemask = unmerged_mask(p->two->path);
 533                        /*
 534                         * Don't bother setting {mode,oid}_{head,index} since the print
 535                         * code will output the stage values directly and not use the
 536                         * values in these fields.
 537                         */
 538                        break;
 539                }
 540        }
 541}
 542
 543static void wt_status_collect_changes_worktree(struct wt_status *s)
 544{
 545        struct rev_info rev;
 546
 547        init_revisions(&rev, NULL);
 548        setup_revisions(0, NULL, &rev, NULL);
 549        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 550        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 551        rev.diffopt.ita_invisible_in_index = 1;
 552        if (!s->show_untracked_files)
 553                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 554        if (s->ignore_submodule_arg) {
 555                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 556                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 557        }
 558        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 559        rev.diffopt.format_callback_data = s;
 560        copy_pathspec(&rev.prune_data, &s->pathspec);
 561        run_diff_files(&rev, 0);
 562}
 563
 564static void wt_status_collect_changes_index(struct wt_status *s)
 565{
 566        struct rev_info rev;
 567        struct setup_revision_opt opt;
 568
 569        init_revisions(&rev, NULL);
 570        memset(&opt, 0, sizeof(opt));
 571        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 572        setup_revisions(0, NULL, &rev, &opt);
 573
 574        DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 575        rev.diffopt.ita_invisible_in_index = 1;
 576        if (s->ignore_submodule_arg) {
 577                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 578        } else {
 579                /*
 580                 * Unless the user did explicitly request a submodule ignore
 581                 * mode by passing a command line option we do not ignore any
 582                 * changed submodule SHA-1s when comparing index and HEAD, no
 583                 * matter what is configured. Otherwise the user won't be
 584                 * shown any submodules she manually added (and which are
 585                 * staged to be committed), which would be really confusing.
 586                 */
 587                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 588        }
 589
 590        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 591        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 592        rev.diffopt.format_callback_data = s;
 593        rev.diffopt.detect_rename = 1;
 594        rev.diffopt.rename_limit = 200;
 595        rev.diffopt.break_opt = 0;
 596        copy_pathspec(&rev.prune_data, &s->pathspec);
 597        run_diff_index(&rev, 1);
 598}
 599
 600static void wt_status_collect_changes_initial(struct wt_status *s)
 601{
 602        int i;
 603
 604        for (i = 0; i < active_nr; i++) {
 605                struct string_list_item *it;
 606                struct wt_status_change_data *d;
 607                const struct cache_entry *ce = active_cache[i];
 608
 609                if (!ce_path_match(ce, &s->pathspec, NULL))
 610                        continue;
 611                if (ce_intent_to_add(ce))
 612                        continue;
 613                it = string_list_insert(&s->change, ce->name);
 614                d = it->util;
 615                if (!d) {
 616                        d = xcalloc(1, sizeof(*d));
 617                        it->util = d;
 618                }
 619                if (ce_stage(ce)) {
 620                        d->index_status = DIFF_STATUS_UNMERGED;
 621                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 622                        /*
 623                         * Don't bother setting {mode,oid}_{head,index} since the print
 624                         * code will output the stage values directly and not use the
 625                         * values in these fields.
 626                         */
 627                } else {
 628                        d->index_status = DIFF_STATUS_ADDED;
 629                        /* Leave {mode,oid}_head zero for adds. */
 630                        d->mode_index = ce->ce_mode;
 631                        hashcpy(d->oid_index.hash, ce->oid.hash);
 632                }
 633        }
 634}
 635
 636static void wt_status_collect_untracked(struct wt_status *s)
 637{
 638        int i;
 639        struct dir_struct dir;
 640        uint64_t t_begin = getnanotime();
 641
 642        if (!s->show_untracked_files)
 643                return;
 644
 645        memset(&dir, 0, sizeof(dir));
 646        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 647                dir.flags |=
 648                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 649        if (s->show_ignored_files)
 650                dir.flags |= DIR_SHOW_IGNORED_TOO;
 651        else
 652                dir.untracked = the_index.untracked;
 653        setup_standard_excludes(&dir);
 654
 655        fill_directory(&dir, &s->pathspec);
 656
 657        for (i = 0; i < dir.nr; i++) {
 658                struct dir_entry *ent = dir.entries[i];
 659                if (cache_name_is_other(ent->name, ent->len) &&
 660                    dir_path_match(ent, &s->pathspec, 0, NULL))
 661                        string_list_insert(&s->untracked, ent->name);
 662                free(ent);
 663        }
 664
 665        for (i = 0; i < dir.ignored_nr; i++) {
 666                struct dir_entry *ent = dir.ignored[i];
 667                if (cache_name_is_other(ent->name, ent->len) &&
 668                    dir_path_match(ent, &s->pathspec, 0, NULL))
 669                        string_list_insert(&s->ignored, ent->name);
 670                free(ent);
 671        }
 672
 673        free(dir.entries);
 674        free(dir.ignored);
 675        clear_directory(&dir);
 676
 677        if (advice_status_u_option)
 678                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 679}
 680
 681void wt_status_collect(struct wt_status *s)
 682{
 683        wt_status_collect_changes_worktree(s);
 684
 685        if (s->is_initial)
 686                wt_status_collect_changes_initial(s);
 687        else
 688                wt_status_collect_changes_index(s);
 689        wt_status_collect_untracked(s);
 690}
 691
 692static void wt_longstatus_print_unmerged(struct wt_status *s)
 693{
 694        int shown_header = 0;
 695        int i;
 696
 697        for (i = 0; i < s->change.nr; i++) {
 698                struct wt_status_change_data *d;
 699                struct string_list_item *it;
 700                it = &(s->change.items[i]);
 701                d = it->util;
 702                if (!d->stagemask)
 703                        continue;
 704                if (!shown_header) {
 705                        wt_longstatus_print_unmerged_header(s);
 706                        shown_header = 1;
 707                }
 708                wt_longstatus_print_unmerged_data(s, it);
 709        }
 710        if (shown_header)
 711                wt_longstatus_print_trailer(s);
 712
 713}
 714
 715static void wt_longstatus_print_updated(struct wt_status *s)
 716{
 717        int shown_header = 0;
 718        int i;
 719
 720        for (i = 0; i < s->change.nr; i++) {
 721                struct wt_status_change_data *d;
 722                struct string_list_item *it;
 723                it = &(s->change.items[i]);
 724                d = it->util;
 725                if (!d->index_status ||
 726                    d->index_status == DIFF_STATUS_UNMERGED)
 727                        continue;
 728                if (!shown_header) {
 729                        wt_longstatus_print_cached_header(s);
 730                        s->commitable = 1;
 731                        shown_header = 1;
 732                }
 733                wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
 734        }
 735        if (shown_header)
 736                wt_longstatus_print_trailer(s);
 737}
 738
 739/*
 740 * -1 : has delete
 741 *  0 : no change
 742 *  1 : some change but no delete
 743 */
 744static int wt_status_check_worktree_changes(struct wt_status *s,
 745                                             int *dirty_submodules)
 746{
 747        int i;
 748        int changes = 0;
 749
 750        *dirty_submodules = 0;
 751
 752        for (i = 0; i < s->change.nr; i++) {
 753                struct wt_status_change_data *d;
 754                d = s->change.items[i].util;
 755                if (!d->worktree_status ||
 756                    d->worktree_status == DIFF_STATUS_UNMERGED)
 757                        continue;
 758                if (!changes)
 759                        changes = 1;
 760                if (d->dirty_submodule)
 761                        *dirty_submodules = 1;
 762                if (d->worktree_status == DIFF_STATUS_DELETED)
 763                        changes = -1;
 764        }
 765        return changes;
 766}
 767
 768static void wt_longstatus_print_changed(struct wt_status *s)
 769{
 770        int i, dirty_submodules;
 771        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 772
 773        if (!worktree_changes)
 774                return;
 775
 776        wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 777
 778        for (i = 0; i < s->change.nr; i++) {
 779                struct wt_status_change_data *d;
 780                struct string_list_item *it;
 781                it = &(s->change.items[i]);
 782                d = it->util;
 783                if (!d->worktree_status ||
 784                    d->worktree_status == DIFF_STATUS_UNMERGED)
 785                        continue;
 786                wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
 787        }
 788        wt_longstatus_print_trailer(s);
 789}
 790
 791static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
 792{
 793        struct child_process sm_summary = CHILD_PROCESS_INIT;
 794        struct strbuf cmd_stdout = STRBUF_INIT;
 795        struct strbuf summary = STRBUF_INIT;
 796        char *summary_content;
 797
 798        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 799                         s->index_file);
 800
 801        argv_array_push(&sm_summary.args, "submodule");
 802        argv_array_push(&sm_summary.args, "summary");
 803        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 804        argv_array_push(&sm_summary.args, "--for-status");
 805        argv_array_push(&sm_summary.args, "--summary-limit");
 806        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 807        if (!uncommitted)
 808                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 809
 810        sm_summary.git_cmd = 1;
 811        sm_summary.no_stdin = 1;
 812
 813        capture_command(&sm_summary, &cmd_stdout, 1024);
 814
 815        /* prepend header, only if there's an actual output */
 816        if (cmd_stdout.len) {
 817                if (uncommitted)
 818                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 819                else
 820                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 821                strbuf_addstr(&summary, "\n\n");
 822        }
 823        strbuf_addbuf(&summary, &cmd_stdout);
 824        strbuf_release(&cmd_stdout);
 825
 826        if (s->display_comment_prefix) {
 827                size_t len;
 828                summary_content = strbuf_detach(&summary, &len);
 829                strbuf_add_commented_lines(&summary, summary_content, len);
 830                free(summary_content);
 831        }
 832
 833        fputs(summary.buf, s->fp);
 834        strbuf_release(&summary);
 835}
 836
 837static void wt_longstatus_print_other(struct wt_status *s,
 838                                      struct string_list *l,
 839                                      const char *what,
 840                                      const char *how)
 841{
 842        int i;
 843        struct strbuf buf = STRBUF_INIT;
 844        static struct string_list output = STRING_LIST_INIT_DUP;
 845        struct column_options copts;
 846
 847        if (!l->nr)
 848                return;
 849
 850        wt_longstatus_print_other_header(s, what, how);
 851
 852        for (i = 0; i < l->nr; i++) {
 853                struct string_list_item *it;
 854                const char *path;
 855                it = &(l->items[i]);
 856                path = quote_path(it->string, s->prefix, &buf);
 857                if (column_active(s->colopts)) {
 858                        string_list_append(&output, path);
 859                        continue;
 860                }
 861                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 862                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 863                                   "%s\n", path);
 864        }
 865
 866        strbuf_release(&buf);
 867        if (!column_active(s->colopts))
 868                goto conclude;
 869
 870        strbuf_addf(&buf, "%s%s\t%s",
 871                    color(WT_STATUS_HEADER, s),
 872                    s->display_comment_prefix ? "#" : "",
 873                    color(WT_STATUS_UNTRACKED, s));
 874        memset(&copts, 0, sizeof(copts));
 875        copts.padding = 1;
 876        copts.indent = buf.buf;
 877        if (want_color(s->use_color))
 878                copts.nl = GIT_COLOR_RESET "\n";
 879        print_columns(&output, s->colopts, &copts);
 880        string_list_clear(&output, 0);
 881        strbuf_release(&buf);
 882conclude:
 883        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 884}
 885
 886void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 887{
 888        const char *p;
 889        struct strbuf pattern = STRBUF_INIT;
 890
 891        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
 892        if (starts_with(buf->buf, pattern.buf + 1))
 893                strbuf_setlen(buf, 0);
 894        else if ((p = strstr(buf->buf, pattern.buf)))
 895                strbuf_setlen(buf, p - buf->buf + 1);
 896        strbuf_release(&pattern);
 897}
 898
 899void wt_status_add_cut_line(FILE *fp)
 900{
 901        const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 902        struct strbuf buf = STRBUF_INIT;
 903
 904        fprintf(fp, "%c %s", comment_line_char, cut_line);
 905        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 906        fputs(buf.buf, fp);
 907        strbuf_release(&buf);
 908}
 909
 910static void wt_longstatus_print_verbose(struct wt_status *s)
 911{
 912        struct rev_info rev;
 913        struct setup_revision_opt opt;
 914        int dirty_submodules;
 915        const char *c = color(WT_STATUS_HEADER, s);
 916
 917        init_revisions(&rev, NULL);
 918        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 919        rev.diffopt.ita_invisible_in_index = 1;
 920
 921        memset(&opt, 0, sizeof(opt));
 922        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 923        setup_revisions(0, NULL, &rev, &opt);
 924
 925        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 926        rev.diffopt.detect_rename = 1;
 927        rev.diffopt.file = s->fp;
 928        rev.diffopt.close_file = 0;
 929        /*
 930         * If we're not going to stdout, then we definitely don't
 931         * want color, since we are going to the commit message
 932         * file (and even the "auto" setting won't work, since it
 933         * will have checked isatty on stdout). But we then do want
 934         * to insert the scissor line here to reliably remove the
 935         * diff before committing.
 936         */
 937        if (s->fp != stdout) {
 938                rev.diffopt.use_color = 0;
 939                wt_status_add_cut_line(s->fp);
 940        }
 941        if (s->verbose > 1 && s->commitable) {
 942                /* print_updated() printed a header, so do we */
 943                if (s->fp != stdout)
 944                        wt_longstatus_print_trailer(s);
 945                status_printf_ln(s, c, _("Changes to be committed:"));
 946                rev.diffopt.a_prefix = "c/";
 947                rev.diffopt.b_prefix = "i/";
 948        } /* else use prefix as per user config */
 949        run_diff_index(&rev, 1);
 950        if (s->verbose > 1 &&
 951            wt_status_check_worktree_changes(s, &dirty_submodules)) {
 952                status_printf_ln(s, c,
 953                        "--------------------------------------------------");
 954                status_printf_ln(s, c, _("Changes not staged for commit:"));
 955                setup_work_tree();
 956                rev.diffopt.a_prefix = "i/";
 957                rev.diffopt.b_prefix = "w/";
 958                run_diff_files(&rev, 0);
 959        }
 960}
 961
 962static void wt_longstatus_print_tracking(struct wt_status *s)
 963{
 964        struct strbuf sb = STRBUF_INIT;
 965        const char *cp, *ep, *branch_name;
 966        struct branch *branch;
 967        char comment_line_string[3];
 968        int i;
 969
 970        assert(s->branch && !s->is_initial);
 971        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
 972                return;
 973        branch = branch_get(branch_name);
 974        if (!format_tracking_info(branch, &sb))
 975                return;
 976
 977        i = 0;
 978        if (s->display_comment_prefix) {
 979                comment_line_string[i++] = comment_line_char;
 980                comment_line_string[i++] = ' ';
 981        }
 982        comment_line_string[i] = '\0';
 983
 984        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 985                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 986                                 "%s%.*s", comment_line_string,
 987                                 (int)(ep - cp), cp);
 988        if (s->display_comment_prefix)
 989                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 990                                 comment_line_char);
 991        else
 992                fputs("", s->fp);
 993}
 994
 995static int has_unmerged(struct wt_status *s)
 996{
 997        int i;
 998
 999        for (i = 0; i < s->change.nr; i++) {
1000                struct wt_status_change_data *d;
1001                d = s->change.items[i].util;
1002                if (d->stagemask)
1003                        return 1;
1004        }
1005        return 0;
1006}
1007
1008static void show_merge_in_progress(struct wt_status *s,
1009                                struct wt_status_state *state,
1010                                const char *color)
1011{
1012        if (has_unmerged(s)) {
1013                status_printf_ln(s, color, _("You have unmerged paths."));
1014                if (s->hints) {
1015                        status_printf_ln(s, color,
1016                                         _("  (fix conflicts and run \"git commit\")"));
1017                        status_printf_ln(s, color,
1018                                         _("  (use \"git merge --abort\" to abort the merge)"));
1019                }
1020        } else {
1021                s-> commitable = 1;
1022                status_printf_ln(s, color,
1023                        _("All conflicts fixed but you are still merging."));
1024                if (s->hints)
1025                        status_printf_ln(s, color,
1026                                _("  (use \"git commit\" to conclude merge)"));
1027        }
1028        wt_longstatus_print_trailer(s);
1029}
1030
1031static void show_am_in_progress(struct wt_status *s,
1032                                struct wt_status_state *state,
1033                                const char *color)
1034{
1035        status_printf_ln(s, color,
1036                _("You are in the middle of an am session."));
1037        if (state->am_empty_patch)
1038                status_printf_ln(s, color,
1039                        _("The current patch is empty."));
1040        if (s->hints) {
1041                if (!state->am_empty_patch)
1042                        status_printf_ln(s, color,
1043                                _("  (fix conflicts and then run \"git am --continue\")"));
1044                status_printf_ln(s, color,
1045                        _("  (use \"git am --skip\" to skip this patch)"));
1046                status_printf_ln(s, color,
1047                        _("  (use \"git am --abort\" to restore the original branch)"));
1048        }
1049        wt_longstatus_print_trailer(s);
1050}
1051
1052static char *read_line_from_git_path(const char *filename)
1053{
1054        struct strbuf buf = STRBUF_INIT;
1055        FILE *fp = fopen(git_path("%s", filename), "r");
1056        if (!fp) {
1057                strbuf_release(&buf);
1058                return NULL;
1059        }
1060        strbuf_getline_lf(&buf, fp);
1061        if (!fclose(fp)) {
1062                return strbuf_detach(&buf, NULL);
1063        } else {
1064                strbuf_release(&buf);
1065                return NULL;
1066        }
1067}
1068
1069static int split_commit_in_progress(struct wt_status *s)
1070{
1071        int split_in_progress = 0;
1072        char *head = read_line_from_git_path("HEAD");
1073        char *orig_head = read_line_from_git_path("ORIG_HEAD");
1074        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
1075        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1076
1077        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
1078            !s->branch || strcmp(s->branch, "HEAD"))
1079                return split_in_progress;
1080
1081        if (!strcmp(rebase_amend, rebase_orig_head)) {
1082                if (strcmp(head, rebase_amend))
1083                        split_in_progress = 1;
1084        } else if (strcmp(orig_head, rebase_orig_head)) {
1085                split_in_progress = 1;
1086        }
1087
1088        if (!s->amend && !s->nowarn && !s->workdir_dirty)
1089                split_in_progress = 0;
1090
1091        free(head);
1092        free(orig_head);
1093        free(rebase_amend);
1094        free(rebase_orig_head);
1095        return split_in_progress;
1096}
1097
1098/*
1099 * Turn
1100 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1101 * into
1102 * "pick d6a2f03 some message"
1103 *
1104 * The function assumes that the line does not contain useless spaces
1105 * before or after the command.
1106 */
1107static void abbrev_sha1_in_line(struct strbuf *line)
1108{
1109        struct strbuf **split;
1110        int i;
1111
1112        if (starts_with(line->buf, "exec ") ||
1113            starts_with(line->buf, "x "))
1114                return;
1115
1116        split = strbuf_split_max(line, ' ', 3);
1117        if (split[0] && split[1]) {
1118                unsigned char sha1[20];
1119
1120                /*
1121                 * strbuf_split_max left a space. Trim it and re-add
1122                 * it after abbreviation.
1123                 */
1124                strbuf_trim(split[1]);
1125                if (!get_sha1(split[1]->buf, sha1)) {
1126                        strbuf_reset(split[1]);
1127                        strbuf_add_unique_abbrev(split[1], sha1,
1128                                                 DEFAULT_ABBREV);
1129                        strbuf_addch(split[1], ' ');
1130                        strbuf_reset(line);
1131                        for (i = 0; split[i]; i++)
1132                                strbuf_addbuf(line, split[i]);
1133                }
1134        }
1135        strbuf_list_free(split);
1136}
1137
1138static void read_rebase_todolist(const char *fname, struct string_list *lines)
1139{
1140        struct strbuf line = STRBUF_INIT;
1141        FILE *f = fopen(git_path("%s", fname), "r");
1142
1143        if (!f)
1144                die_errno("Could not open file %s for reading",
1145                          git_path("%s", fname));
1146        while (!strbuf_getline_lf(&line, f)) {
1147                if (line.len && line.buf[0] == comment_line_char)
1148                        continue;
1149                strbuf_trim(&line);
1150                if (!line.len)
1151                        continue;
1152                abbrev_sha1_in_line(&line);
1153                string_list_append(lines, line.buf);
1154        }
1155}
1156
1157static void show_rebase_information(struct wt_status *s,
1158                                        struct wt_status_state *state,
1159                                        const char *color)
1160{
1161        if (state->rebase_interactive_in_progress) {
1162                int i;
1163                int nr_lines_to_show = 2;
1164
1165                struct string_list have_done = STRING_LIST_INIT_DUP;
1166                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1167
1168                read_rebase_todolist("rebase-merge/done", &have_done);
1169                read_rebase_todolist("rebase-merge/git-rebase-todo", &yet_to_do);
1170
1171                if (have_done.nr == 0)
1172                        status_printf_ln(s, color, _("No commands done."));
1173                else {
1174                        status_printf_ln(s, color,
1175                                Q_("Last command done (%d command done):",
1176                                        "Last commands done (%d commands done):",
1177                                        have_done.nr),
1178                                have_done.nr);
1179                        for (i = (have_done.nr > nr_lines_to_show)
1180                                ? have_done.nr - nr_lines_to_show : 0;
1181                                i < have_done.nr;
1182                                i++)
1183                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1184                        if (have_done.nr > nr_lines_to_show && s->hints)
1185                                status_printf_ln(s, color,
1186                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1187                }
1188
1189                if (yet_to_do.nr == 0)
1190                        status_printf_ln(s, color,
1191                                         _("No commands remaining."));
1192                else {
1193                        status_printf_ln(s, color,
1194                                Q_("Next command to do (%d remaining command):",
1195                                        "Next commands to do (%d remaining commands):",
1196                                        yet_to_do.nr),
1197                                yet_to_do.nr);
1198                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1199                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1200                        if (s->hints)
1201                                status_printf_ln(s, color,
1202                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1203                }
1204                string_list_clear(&yet_to_do, 0);
1205                string_list_clear(&have_done, 0);
1206        }
1207}
1208
1209static void print_rebase_state(struct wt_status *s,
1210                                struct wt_status_state *state,
1211                                const char *color)
1212{
1213        if (state->branch)
1214                status_printf_ln(s, color,
1215                                 _("You are currently rebasing branch '%s' on '%s'."),
1216                                 state->branch,
1217                                 state->onto);
1218        else
1219                status_printf_ln(s, color,
1220                                 _("You are currently rebasing."));
1221}
1222
1223static void show_rebase_in_progress(struct wt_status *s,
1224                                struct wt_status_state *state,
1225                                const char *color)
1226{
1227        struct stat st;
1228
1229        show_rebase_information(s, state, color);
1230        if (has_unmerged(s)) {
1231                print_rebase_state(s, state, color);
1232                if (s->hints) {
1233                        status_printf_ln(s, color,
1234                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1235                        status_printf_ln(s, color,
1236                                _("  (use \"git rebase --skip\" to skip this patch)"));
1237                        status_printf_ln(s, color,
1238                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1239                }
1240        } else if (state->rebase_in_progress || !stat(git_path_merge_msg(), &st)) {
1241                print_rebase_state(s, state, color);
1242                if (s->hints)
1243                        status_printf_ln(s, color,
1244                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1245        } else if (split_commit_in_progress(s)) {
1246                if (state->branch)
1247                        status_printf_ln(s, color,
1248                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1249                                         state->branch,
1250                                         state->onto);
1251                else
1252                        status_printf_ln(s, color,
1253                                         _("You are currently splitting a commit during a rebase."));
1254                if (s->hints)
1255                        status_printf_ln(s, color,
1256                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1257        } else {
1258                if (state->branch)
1259                        status_printf_ln(s, color,
1260                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1261                                         state->branch,
1262                                         state->onto);
1263                else
1264                        status_printf_ln(s, color,
1265                                         _("You are currently editing a commit during a rebase."));
1266                if (s->hints && !s->amend) {
1267                        status_printf_ln(s, color,
1268                                _("  (use \"git commit --amend\" to amend the current commit)"));
1269                        status_printf_ln(s, color,
1270                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1271                }
1272        }
1273        wt_longstatus_print_trailer(s);
1274}
1275
1276static void show_cherry_pick_in_progress(struct wt_status *s,
1277                                        struct wt_status_state *state,
1278                                        const char *color)
1279{
1280        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1281                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1282        if (s->hints) {
1283                if (has_unmerged(s))
1284                        status_printf_ln(s, color,
1285                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1286                else
1287                        status_printf_ln(s, color,
1288                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1289                status_printf_ln(s, color,
1290                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1291        }
1292        wt_longstatus_print_trailer(s);
1293}
1294
1295static void show_revert_in_progress(struct wt_status *s,
1296                                        struct wt_status_state *state,
1297                                        const char *color)
1298{
1299        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1300                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1301        if (s->hints) {
1302                if (has_unmerged(s))
1303                        status_printf_ln(s, color,
1304                                _("  (fix conflicts and run \"git revert --continue\")"));
1305                else
1306                        status_printf_ln(s, color,
1307                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1308                status_printf_ln(s, color,
1309                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1310        }
1311        wt_longstatus_print_trailer(s);
1312}
1313
1314static void show_bisect_in_progress(struct wt_status *s,
1315                                struct wt_status_state *state,
1316                                const char *color)
1317{
1318        if (state->branch)
1319                status_printf_ln(s, color,
1320                                 _("You are currently bisecting, started from branch '%s'."),
1321                                 state->branch);
1322        else
1323                status_printf_ln(s, color,
1324                                 _("You are currently bisecting."));
1325        if (s->hints)
1326                status_printf_ln(s, color,
1327                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1328        wt_longstatus_print_trailer(s);
1329}
1330
1331/*
1332 * Extract branch information from rebase/bisect
1333 */
1334static char *get_branch(const struct worktree *wt, const char *path)
1335{
1336        struct strbuf sb = STRBUF_INIT;
1337        unsigned char sha1[20];
1338        const char *branch_name;
1339
1340        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1341                goto got_nothing;
1342
1343        while (sb.len && sb.buf[sb.len - 1] == '\n')
1344                strbuf_setlen(&sb, sb.len - 1);
1345        if (!sb.len)
1346                goto got_nothing;
1347        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1348                strbuf_remove(&sb, 0, branch_name - sb.buf);
1349        else if (starts_with(sb.buf, "refs/"))
1350                ;
1351        else if (!get_sha1_hex(sb.buf, sha1)) {
1352                strbuf_reset(&sb);
1353                strbuf_add_unique_abbrev(&sb, sha1, DEFAULT_ABBREV);
1354        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1355                goto got_nothing;
1356        else                    /* bisect */
1357                ;
1358        return strbuf_detach(&sb, NULL);
1359
1360got_nothing:
1361        strbuf_release(&sb);
1362        return NULL;
1363}
1364
1365struct grab_1st_switch_cbdata {
1366        struct strbuf buf;
1367        unsigned char nsha1[20];
1368};
1369
1370static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1371                           const char *email, unsigned long timestamp, int tz,
1372                           const char *message, void *cb_data)
1373{
1374        struct grab_1st_switch_cbdata *cb = cb_data;
1375        const char *target = NULL, *end;
1376
1377        if (!skip_prefix(message, "checkout: moving from ", &message))
1378                return 0;
1379        target = strstr(message, " to ");
1380        if (!target)
1381                return 0;
1382        target += strlen(" to ");
1383        strbuf_reset(&cb->buf);
1384        hashcpy(cb->nsha1, nsha1);
1385        end = strchrnul(target, '\n');
1386        strbuf_add(&cb->buf, target, end - target);
1387        if (!strcmp(cb->buf.buf, "HEAD")) {
1388                /* HEAD is relative. Resolve it to the right reflog entry. */
1389                strbuf_reset(&cb->buf);
1390                strbuf_add_unique_abbrev(&cb->buf, nsha1, DEFAULT_ABBREV);
1391        }
1392        return 1;
1393}
1394
1395static void wt_status_get_detached_from(struct wt_status_state *state)
1396{
1397        struct grab_1st_switch_cbdata cb;
1398        struct commit *commit;
1399        unsigned char sha1[20];
1400        char *ref = NULL;
1401
1402        strbuf_init(&cb.buf, 0);
1403        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1404                strbuf_release(&cb.buf);
1405                return;
1406        }
1407
1408        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1409            /* sha1 is a commit? match without further lookup */
1410            (!hashcmp(cb.nsha1, sha1) ||
1411             /* perhaps sha1 is a tag, try to dereference to a commit */
1412             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1413              !hashcmp(cb.nsha1, commit->object.oid.hash)))) {
1414                const char *from = ref;
1415                if (!skip_prefix(from, "refs/tags/", &from))
1416                        skip_prefix(from, "refs/remotes/", &from);
1417                state->detached_from = xstrdup(from);
1418        } else
1419                state->detached_from =
1420                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1421        hashcpy(state->detached_sha1, cb.nsha1);
1422        state->detached_at = !get_sha1("HEAD", sha1) &&
1423                             !hashcmp(sha1, state->detached_sha1);
1424
1425        free(ref);
1426        strbuf_release(&cb.buf);
1427}
1428
1429int wt_status_check_rebase(const struct worktree *wt,
1430                           struct wt_status_state *state)
1431{
1432        struct stat st;
1433
1434        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1435                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1436                        state->am_in_progress = 1;
1437                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1438                                state->am_empty_patch = 1;
1439                } else {
1440                        state->rebase_in_progress = 1;
1441                        state->branch = get_branch(wt, "rebase-apply/head-name");
1442                        state->onto = get_branch(wt, "rebase-apply/onto");
1443                }
1444        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1445                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1446                        state->rebase_interactive_in_progress = 1;
1447                else
1448                        state->rebase_in_progress = 1;
1449                state->branch = get_branch(wt, "rebase-merge/head-name");
1450                state->onto = get_branch(wt, "rebase-merge/onto");
1451        } else
1452                return 0;
1453        return 1;
1454}
1455
1456int wt_status_check_bisect(const struct worktree *wt,
1457                           struct wt_status_state *state)
1458{
1459        struct stat st;
1460
1461        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1462                state->bisect_in_progress = 1;
1463                state->branch = get_branch(wt, "BISECT_START");
1464                return 1;
1465        }
1466        return 0;
1467}
1468
1469void wt_status_get_state(struct wt_status_state *state,
1470                         int get_detached_from)
1471{
1472        struct stat st;
1473        unsigned char sha1[20];
1474
1475        if (!stat(git_path_merge_head(), &st)) {
1476                state->merge_in_progress = 1;
1477        } else if (wt_status_check_rebase(NULL, state)) {
1478                ;               /* all set */
1479        } else if (!stat(git_path_cherry_pick_head(), &st) &&
1480                        !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1481                state->cherry_pick_in_progress = 1;
1482                hashcpy(state->cherry_pick_head_sha1, sha1);
1483        }
1484        wt_status_check_bisect(NULL, state);
1485        if (!stat(git_path_revert_head(), &st) &&
1486            !get_sha1("REVERT_HEAD", sha1)) {
1487                state->revert_in_progress = 1;
1488                hashcpy(state->revert_head_sha1, sha1);
1489        }
1490
1491        if (get_detached_from)
1492                wt_status_get_detached_from(state);
1493}
1494
1495static void wt_longstatus_print_state(struct wt_status *s,
1496                                      struct wt_status_state *state)
1497{
1498        const char *state_color = color(WT_STATUS_HEADER, s);
1499        if (state->merge_in_progress)
1500                show_merge_in_progress(s, state, state_color);
1501        else if (state->am_in_progress)
1502                show_am_in_progress(s, state, state_color);
1503        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1504                show_rebase_in_progress(s, state, state_color);
1505        else if (state->cherry_pick_in_progress)
1506                show_cherry_pick_in_progress(s, state, state_color);
1507        else if (state->revert_in_progress)
1508                show_revert_in_progress(s, state, state_color);
1509        if (state->bisect_in_progress)
1510                show_bisect_in_progress(s, state, state_color);
1511}
1512
1513static void wt_longstatus_print(struct wt_status *s)
1514{
1515        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1516        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1517        struct wt_status_state state;
1518
1519        memset(&state, 0, sizeof(state));
1520        wt_status_get_state(&state,
1521                            s->branch && !strcmp(s->branch, "HEAD"));
1522
1523        if (s->branch) {
1524                const char *on_what = _("On branch ");
1525                const char *branch_name = s->branch;
1526                if (!strcmp(branch_name, "HEAD")) {
1527                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1528                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1529                                if (state.rebase_interactive_in_progress)
1530                                        on_what = _("interactive rebase in progress; onto ");
1531                                else
1532                                        on_what = _("rebase in progress; onto ");
1533                                branch_name = state.onto;
1534                        } else if (state.detached_from) {
1535                                branch_name = state.detached_from;
1536                                if (state.detached_at)
1537                                        on_what = _("HEAD detached at ");
1538                                else
1539                                        on_what = _("HEAD detached from ");
1540                        } else {
1541                                branch_name = "";
1542                                on_what = _("Not currently on any branch.");
1543                        }
1544                } else
1545                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1546                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1547                status_printf_more(s, branch_status_color, "%s", on_what);
1548                status_printf_more(s, branch_color, "%s\n", branch_name);
1549                if (!s->is_initial)
1550                        wt_longstatus_print_tracking(s);
1551        }
1552
1553        wt_longstatus_print_state(s, &state);
1554        free(state.branch);
1555        free(state.onto);
1556        free(state.detached_from);
1557
1558        if (s->is_initial) {
1559                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1560                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1561                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1562        }
1563
1564        wt_longstatus_print_updated(s);
1565        wt_longstatus_print_unmerged(s);
1566        wt_longstatus_print_changed(s);
1567        if (s->submodule_summary &&
1568            (!s->ignore_submodule_arg ||
1569             strcmp(s->ignore_submodule_arg, "all"))) {
1570                wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1571                wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1572        }
1573        if (s->show_untracked_files) {
1574                wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1575                if (s->show_ignored_files)
1576                        wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1577                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1578                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1579                        status_printf_ln(s, GIT_COLOR_NORMAL,
1580                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1581                                           "may speed it up, but you have to be careful not to forget to add\n"
1582                                           "new files yourself (see 'git help status')."),
1583                                         s->untracked_in_ms / 1000.0);
1584                }
1585        } else if (s->commitable)
1586                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1587                        s->hints
1588                        ? _(" (use -u option to show untracked files)") : "");
1589
1590        if (s->verbose)
1591                wt_longstatus_print_verbose(s);
1592        if (!s->commitable) {
1593                if (s->amend)
1594                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1595                else if (s->nowarn)
1596                        ; /* nothing */
1597                else if (s->workdir_dirty) {
1598                        if (s->hints)
1599                                printf(_("no changes added to commit "
1600                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1601                        else
1602                                printf(_("no changes added to commit\n"));
1603                } else if (s->untracked.nr) {
1604                        if (s->hints)
1605                                printf(_("nothing added to commit but untracked files "
1606                                         "present (use \"git add\" to track)\n"));
1607                        else
1608                                printf(_("nothing added to commit but untracked files present\n"));
1609                } else if (s->is_initial) {
1610                        if (s->hints)
1611                                printf(_("nothing to commit (create/copy files "
1612                                         "and use \"git add\" to track)\n"));
1613                        else
1614                                printf(_("nothing to commit\n"));
1615                } else if (!s->show_untracked_files) {
1616                        if (s->hints)
1617                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1618                        else
1619                                printf(_("nothing to commit\n"));
1620                } else
1621                        printf(_("nothing to commit, working tree clean\n"));
1622        }
1623}
1624
1625static void wt_shortstatus_unmerged(struct string_list_item *it,
1626                           struct wt_status *s)
1627{
1628        struct wt_status_change_data *d = it->util;
1629        const char *how = "??";
1630
1631        switch (d->stagemask) {
1632        case 1: how = "DD"; break; /* both deleted */
1633        case 2: how = "AU"; break; /* added by us */
1634        case 3: how = "UD"; break; /* deleted by them */
1635        case 4: how = "UA"; break; /* added by them */
1636        case 5: how = "DU"; break; /* deleted by us */
1637        case 6: how = "AA"; break; /* both added */
1638        case 7: how = "UU"; break; /* both modified */
1639        }
1640        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1641        if (s->null_termination) {
1642                fprintf(stdout, " %s%c", it->string, 0);
1643        } else {
1644                struct strbuf onebuf = STRBUF_INIT;
1645                const char *one;
1646                one = quote_path(it->string, s->prefix, &onebuf);
1647                printf(" %s\n", one);
1648                strbuf_release(&onebuf);
1649        }
1650}
1651
1652static void wt_shortstatus_status(struct string_list_item *it,
1653                         struct wt_status *s)
1654{
1655        struct wt_status_change_data *d = it->util;
1656
1657        if (d->index_status)
1658                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1659        else
1660                putchar(' ');
1661        if (d->worktree_status)
1662                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1663        else
1664                putchar(' ');
1665        putchar(' ');
1666        if (s->null_termination) {
1667                fprintf(stdout, "%s%c", it->string, 0);
1668                if (d->head_path)
1669                        fprintf(stdout, "%s%c", d->head_path, 0);
1670        } else {
1671                struct strbuf onebuf = STRBUF_INIT;
1672                const char *one;
1673                if (d->head_path) {
1674                        one = quote_path(d->head_path, s->prefix, &onebuf);
1675                        if (*one != '"' && strchr(one, ' ') != NULL) {
1676                                putchar('"');
1677                                strbuf_addch(&onebuf, '"');
1678                                one = onebuf.buf;
1679                        }
1680                        printf("%s -> ", one);
1681                        strbuf_release(&onebuf);
1682                }
1683                one = quote_path(it->string, s->prefix, &onebuf);
1684                if (*one != '"' && strchr(one, ' ') != NULL) {
1685                        putchar('"');
1686                        strbuf_addch(&onebuf, '"');
1687                        one = onebuf.buf;
1688                }
1689                printf("%s\n", one);
1690                strbuf_release(&onebuf);
1691        }
1692}
1693
1694static void wt_shortstatus_other(struct string_list_item *it,
1695                                 struct wt_status *s, const char *sign)
1696{
1697        if (s->null_termination) {
1698                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1699        } else {
1700                struct strbuf onebuf = STRBUF_INIT;
1701                const char *one;
1702                one = quote_path(it->string, s->prefix, &onebuf);
1703                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1704                printf(" %s\n", one);
1705                strbuf_release(&onebuf);
1706        }
1707}
1708
1709static void wt_shortstatus_print_tracking(struct wt_status *s)
1710{
1711        struct branch *branch;
1712        const char *header_color = color(WT_STATUS_HEADER, s);
1713        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1714        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1715
1716        const char *base;
1717        const char *branch_name;
1718        int num_ours, num_theirs;
1719        int upstream_is_gone = 0;
1720
1721        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1722
1723        if (!s->branch)
1724                return;
1725        branch_name = s->branch;
1726
1727        if (s->is_initial)
1728                color_fprintf(s->fp, header_color, _("Initial commit on "));
1729
1730        if (!strcmp(s->branch, "HEAD")) {
1731                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1732                              _("HEAD (no branch)"));
1733                goto conclude;
1734        }
1735
1736        skip_prefix(branch_name, "refs/heads/", &branch_name);
1737
1738        branch = branch_get(branch_name);
1739
1740        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1741
1742        if (stat_tracking_info(branch, &num_ours, &num_theirs, &base) < 0) {
1743                if (!base)
1744                        goto conclude;
1745
1746                upstream_is_gone = 1;
1747        }
1748
1749        base = shorten_unambiguous_ref(base, 0);
1750        color_fprintf(s->fp, header_color, "...");
1751        color_fprintf(s->fp, branch_color_remote, "%s", base);
1752        free((char *)base);
1753
1754        if (!upstream_is_gone && !num_ours && !num_theirs)
1755                goto conclude;
1756
1757#define LABEL(string) (s->no_gettext ? (string) : _(string))
1758
1759        color_fprintf(s->fp, header_color, " [");
1760        if (upstream_is_gone) {
1761                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1762        } else if (!num_ours) {
1763                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1764                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1765        } else if (!num_theirs) {
1766                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1767                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1768        } else {
1769                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1770                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1771                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1772                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1773        }
1774
1775        color_fprintf(s->fp, header_color, "]");
1776 conclude:
1777        fputc(s->null_termination ? '\0' : '\n', s->fp);
1778}
1779
1780static void wt_shortstatus_print(struct wt_status *s)
1781{
1782        int i;
1783
1784        if (s->show_branch)
1785                wt_shortstatus_print_tracking(s);
1786
1787        for (i = 0; i < s->change.nr; i++) {
1788                struct wt_status_change_data *d;
1789                struct string_list_item *it;
1790
1791                it = &(s->change.items[i]);
1792                d = it->util;
1793                if (d->stagemask)
1794                        wt_shortstatus_unmerged(it, s);
1795                else
1796                        wt_shortstatus_status(it, s);
1797        }
1798        for (i = 0; i < s->untracked.nr; i++) {
1799                struct string_list_item *it;
1800
1801                it = &(s->untracked.items[i]);
1802                wt_shortstatus_other(it, s, "??");
1803        }
1804        for (i = 0; i < s->ignored.nr; i++) {
1805                struct string_list_item *it;
1806
1807                it = &(s->ignored.items[i]);
1808                wt_shortstatus_other(it, s, "!!");
1809        }
1810}
1811
1812static void wt_porcelain_print(struct wt_status *s)
1813{
1814        s->use_color = 0;
1815        s->relative_paths = 0;
1816        s->prefix = NULL;
1817        s->no_gettext = 1;
1818        wt_shortstatus_print(s);
1819}
1820
1821/*
1822 * Print branch information for porcelain v2 output.  These lines
1823 * are printed when the '--branch' parameter is given.
1824 *
1825 *    # branch.oid <commit><eol>
1826 *    # branch.head <head><eol>
1827 *   [# branch.upstream <upstream><eol>
1828 *   [# branch.ab +<ahead> -<behind><eol>]]
1829 *
1830 *      <commit> ::= the current commit hash or the the literal
1831 *                   "(initial)" to indicate an initialized repo
1832 *                   with no commits.
1833 *
1834 *        <head> ::= <branch_name> the current branch name or
1835 *                   "(detached)" literal when detached head or
1836 *                   "(unknown)" when something is wrong.
1837 *
1838 *    <upstream> ::= the upstream branch name, when set.
1839 *
1840 *       <ahead> ::= integer ahead value, when upstream set
1841 *                   and the commit is present (not gone).
1842 *
1843 *      <behind> ::= integer behind value, when upstream set
1844 *                   and commit is present.
1845 *
1846 *
1847 * The end-of-line is defined by the -z flag.
1848 *
1849 *                 <eol> ::= NUL when -z,
1850 *                           LF when NOT -z.
1851 *
1852 */
1853static void wt_porcelain_v2_print_tracking(struct wt_status *s)
1854{
1855        struct branch *branch;
1856        const char *base;
1857        const char *branch_name;
1858        struct wt_status_state state;
1859        int ab_info, nr_ahead, nr_behind;
1860        char eol = s->null_termination ? '\0' : '\n';
1861
1862        memset(&state, 0, sizeof(state));
1863        wt_status_get_state(&state, s->branch && !strcmp(s->branch, "HEAD"));
1864
1865        fprintf(s->fp, "# branch.oid %s%c",
1866                        (s->is_initial ? "(initial)" : sha1_to_hex(s->sha1_commit)),
1867                        eol);
1868
1869        if (!s->branch)
1870                fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
1871        else {
1872                if (!strcmp(s->branch, "HEAD")) {
1873                        fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
1874
1875                        if (state.rebase_in_progress || state.rebase_interactive_in_progress)
1876                                branch_name = state.onto;
1877                        else if (state.detached_from)
1878                                branch_name = state.detached_from;
1879                        else
1880                                branch_name = "";
1881                } else {
1882                        branch_name = NULL;
1883                        skip_prefix(s->branch, "refs/heads/", &branch_name);
1884
1885                        fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
1886                }
1887
1888                /* Lookup stats on the upstream tracking branch, if set. */
1889                branch = branch_get(branch_name);
1890                base = NULL;
1891                ab_info = (stat_tracking_info(branch, &nr_ahead, &nr_behind, &base) == 0);
1892                if (base) {
1893                        base = shorten_unambiguous_ref(base, 0);
1894                        fprintf(s->fp, "# branch.upstream %s%c", base, eol);
1895                        free((char *)base);
1896
1897                        if (ab_info)
1898                                fprintf(s->fp, "# branch.ab +%d -%d%c", nr_ahead, nr_behind, eol);
1899                }
1900        }
1901
1902        free(state.branch);
1903        free(state.onto);
1904        free(state.detached_from);
1905}
1906
1907/*
1908 * Convert various submodule status values into a
1909 * fixed-length string of characters in the buffer provided.
1910 */
1911static void wt_porcelain_v2_submodule_state(
1912        struct wt_status_change_data *d,
1913        char sub[5])
1914{
1915        if (S_ISGITLINK(d->mode_head) ||
1916                S_ISGITLINK(d->mode_index) ||
1917                S_ISGITLINK(d->mode_worktree)) {
1918                sub[0] = 'S';
1919                sub[1] = d->new_submodule_commits ? 'C' : '.';
1920                sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
1921                sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
1922        } else {
1923                sub[0] = 'N';
1924                sub[1] = '.';
1925                sub[2] = '.';
1926                sub[3] = '.';
1927        }
1928        sub[4] = 0;
1929}
1930
1931/*
1932 * Fix-up changed entries before we print them.
1933 */
1934static void wt_porcelain_v2_fix_up_changed(
1935        struct string_list_item *it,
1936        struct wt_status *s)
1937{
1938        struct wt_status_change_data *d = it->util;
1939
1940        if (!d->index_status) {
1941                /*
1942                 * This entry is unchanged in the index (relative to the head).
1943                 * Therefore, the collect_updated_cb was never called for this
1944                 * entry (during the head-vs-index scan) and so the head column
1945                 * fields were never set.
1946                 *
1947                 * We must have data for the index column (from the
1948                 * index-vs-worktree scan (otherwise, this entry should not be
1949                 * in the list of changes)).
1950                 *
1951                 * Copy index column fields to the head column, so that our
1952                 * output looks complete.
1953                 */
1954                assert(d->mode_head == 0);
1955                d->mode_head = d->mode_index;
1956                oidcpy(&d->oid_head, &d->oid_index);
1957        }
1958
1959        if (!d->worktree_status) {
1960                /*
1961                 * This entry is unchanged in the worktree (relative to the index).
1962                 * Therefore, the collect_changed_cb was never called for this entry
1963                 * (during the index-vs-worktree scan) and so the worktree column
1964                 * fields were never set.
1965                 *
1966                 * We must have data for the index column (from the head-vs-index
1967                 * scan).
1968                 *
1969                 * Copy the index column fields to the worktree column so that
1970                 * our output looks complete.
1971                 *
1972                 * Note that we only have a mode field in the worktree column
1973                 * because the scan code tries really hard to not have to compute it.
1974                 */
1975                assert(d->mode_worktree == 0);
1976                d->mode_worktree = d->mode_index;
1977        }
1978}
1979
1980/*
1981 * Print porcelain v2 info for tracked entries with changes.
1982 */
1983static void wt_porcelain_v2_print_changed_entry(
1984        struct string_list_item *it,
1985        struct wt_status *s)
1986{
1987        struct wt_status_change_data *d = it->util;
1988        struct strbuf buf_index = STRBUF_INIT;
1989        struct strbuf buf_head = STRBUF_INIT;
1990        const char *path_index = NULL;
1991        const char *path_head = NULL;
1992        char key[3];
1993        char submodule_token[5];
1994        char sep_char, eol_char;
1995
1996        wt_porcelain_v2_fix_up_changed(it, s);
1997        wt_porcelain_v2_submodule_state(d, submodule_token);
1998
1999        key[0] = d->index_status ? d->index_status : '.';
2000        key[1] = d->worktree_status ? d->worktree_status : '.';
2001        key[2] = 0;
2002
2003        if (s->null_termination) {
2004                /*
2005                 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2006                 * A single NUL character separates them.
2007                 */
2008                sep_char = '\0';
2009                eol_char = '\0';
2010                path_index = it->string;
2011                path_head = d->head_path;
2012        } else {
2013                /*
2014                 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2015                 * The source path is only present when necessary.
2016                 * A single TAB separates them (because paths can contain spaces
2017                 * which are not escaped and C-quoting does escape TAB characters).
2018                 */
2019                sep_char = '\t';
2020                eol_char = '\n';
2021                path_index = quote_path(it->string, s->prefix, &buf_index);
2022                if (d->head_path)
2023                        path_head = quote_path(d->head_path, s->prefix, &buf_head);
2024        }
2025
2026        if (path_head)
2027                fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2028                                key, submodule_token,
2029                                d->mode_head, d->mode_index, d->mode_worktree,
2030                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2031                                key[0], d->score,
2032                                path_index, sep_char, path_head, eol_char);
2033        else
2034                fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2035                                key, submodule_token,
2036                                d->mode_head, d->mode_index, d->mode_worktree,
2037                                oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2038                                path_index, eol_char);
2039
2040        strbuf_release(&buf_index);
2041        strbuf_release(&buf_head);
2042}
2043
2044/*
2045 * Print porcelain v2 status info for unmerged entries.
2046 */
2047static void wt_porcelain_v2_print_unmerged_entry(
2048        struct string_list_item *it,
2049        struct wt_status *s)
2050{
2051        struct wt_status_change_data *d = it->util;
2052        const struct cache_entry *ce;
2053        struct strbuf buf_index = STRBUF_INIT;
2054        const char *path_index = NULL;
2055        int pos, stage, sum;
2056        struct {
2057                int mode;
2058                struct object_id oid;
2059        } stages[3];
2060        char *key;
2061        char submodule_token[5];
2062        char unmerged_prefix = 'u';
2063        char eol_char = s->null_termination ? '\0' : '\n';
2064
2065        wt_porcelain_v2_submodule_state(d, submodule_token);
2066
2067        switch (d->stagemask) {
2068        case 1: key = "DD"; break; /* both deleted */
2069        case 2: key = "AU"; break; /* added by us */
2070        case 3: key = "UD"; break; /* deleted by them */
2071        case 4: key = "UA"; break; /* added by them */
2072        case 5: key = "DU"; break; /* deleted by us */
2073        case 6: key = "AA"; break; /* both added */
2074        case 7: key = "UU"; break; /* both modified */
2075        default:
2076                die("BUG: unhandled unmerged status %x", d->stagemask);
2077        }
2078
2079        /*
2080         * Disregard d.aux.porcelain_v2 data that we accumulated
2081         * for the head and index columns during the scans and
2082         * replace with the actual stage data.
2083         *
2084         * Note that this is a last-one-wins for each the individual
2085         * stage [123] columns in the event of multiple cache entries
2086         * for same stage.
2087         */
2088        memset(stages, 0, sizeof(stages));
2089        sum = 0;
2090        pos = cache_name_pos(it->string, strlen(it->string));
2091        assert(pos < 0);
2092        pos = -pos-1;
2093        while (pos < active_nr) {
2094                ce = active_cache[pos++];
2095                stage = ce_stage(ce);
2096                if (strcmp(ce->name, it->string) || !stage)
2097                        break;
2098                stages[stage - 1].mode = ce->ce_mode;
2099                hashcpy(stages[stage - 1].oid.hash, ce->oid.hash);
2100                sum |= (1 << (stage - 1));
2101        }
2102        if (sum != d->stagemask)
2103                die("BUG: observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2104
2105        if (s->null_termination)
2106                path_index = it->string;
2107        else
2108                path_index = quote_path(it->string, s->prefix, &buf_index);
2109
2110        fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2111                        unmerged_prefix, key, submodule_token,
2112                        stages[0].mode, /* stage 1 */
2113                        stages[1].mode, /* stage 2 */
2114                        stages[2].mode, /* stage 3 */
2115                        d->mode_worktree,
2116                        oid_to_hex(&stages[0].oid), /* stage 1 */
2117                        oid_to_hex(&stages[1].oid), /* stage 2 */
2118                        oid_to_hex(&stages[2].oid), /* stage 3 */
2119                        path_index,
2120                        eol_char);
2121
2122        strbuf_release(&buf_index);
2123}
2124
2125/*
2126 * Print porcelain V2 status info for untracked and ignored entries.
2127 */
2128static void wt_porcelain_v2_print_other(
2129        struct string_list_item *it,
2130        struct wt_status *s,
2131        char prefix)
2132{
2133        struct strbuf buf = STRBUF_INIT;
2134        const char *path;
2135        char eol_char;
2136
2137        if (s->null_termination) {
2138                path = it->string;
2139                eol_char = '\0';
2140        } else {
2141                path = quote_path(it->string, s->prefix, &buf);
2142                eol_char = '\n';
2143        }
2144
2145        fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2146
2147        strbuf_release(&buf);
2148}
2149
2150/*
2151 * Print porcelain V2 status.
2152 *
2153 * [<v2_branch>]
2154 * [<v2_changed_items>]*
2155 * [<v2_unmerged_items>]*
2156 * [<v2_untracked_items>]*
2157 * [<v2_ignored_items>]*
2158 *
2159 */
2160static void wt_porcelain_v2_print(struct wt_status *s)
2161{
2162        struct wt_status_change_data *d;
2163        struct string_list_item *it;
2164        int i;
2165
2166        if (s->show_branch)
2167                wt_porcelain_v2_print_tracking(s);
2168
2169        for (i = 0; i < s->change.nr; i++) {
2170                it = &(s->change.items[i]);
2171                d = it->util;
2172                if (!d->stagemask)
2173                        wt_porcelain_v2_print_changed_entry(it, s);
2174        }
2175
2176        for (i = 0; i < s->change.nr; i++) {
2177                it = &(s->change.items[i]);
2178                d = it->util;
2179                if (d->stagemask)
2180                        wt_porcelain_v2_print_unmerged_entry(it, s);
2181        }
2182
2183        for (i = 0; i < s->untracked.nr; i++) {
2184                it = &(s->untracked.items[i]);
2185                wt_porcelain_v2_print_other(it, s, '?');
2186        }
2187
2188        for (i = 0; i < s->ignored.nr; i++) {
2189                it = &(s->ignored.items[i]);
2190                wt_porcelain_v2_print_other(it, s, '!');
2191        }
2192}
2193
2194void wt_status_print(struct wt_status *s)
2195{
2196        switch (s->status_format) {
2197        case STATUS_FORMAT_SHORT:
2198                wt_shortstatus_print(s);
2199                break;
2200        case STATUS_FORMAT_PORCELAIN:
2201                wt_porcelain_print(s);
2202                break;
2203        case STATUS_FORMAT_PORCELAIN_V2:
2204                wt_porcelain_v2_print(s);
2205                break;
2206        case STATUS_FORMAT_UNSPECIFIED:
2207                die("BUG: finalize_deferred_config() should have been called");
2208                break;
2209        case STATUS_FORMAT_NONE:
2210        case STATUS_FORMAT_LONG:
2211                wt_longstatus_print(s);
2212                break;
2213        }
2214}
2215
2216/**
2217 * Returns 1 if there are unstaged changes, 0 otherwise.
2218 */
2219int has_unstaged_changes(int ignore_submodules)
2220{
2221        struct rev_info rev_info;
2222        int result;
2223
2224        init_revisions(&rev_info, NULL);
2225        if (ignore_submodules)
2226                DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
2227        DIFF_OPT_SET(&rev_info.diffopt, QUICK);
2228        diff_setup_done(&rev_info.diffopt);
2229        result = run_diff_files(&rev_info, 0);
2230        return diff_result_code(&rev_info.diffopt, result);
2231}
2232
2233/**
2234 * Returns 1 if there are uncommitted changes, 0 otherwise.
2235 */
2236int has_uncommitted_changes(int ignore_submodules)
2237{
2238        struct rev_info rev_info;
2239        int result;
2240
2241        if (is_cache_unborn())
2242                return 0;
2243
2244        init_revisions(&rev_info, NULL);
2245        if (ignore_submodules)
2246                DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
2247        DIFF_OPT_SET(&rev_info.diffopt, QUICK);
2248        add_head_to_pending(&rev_info);
2249        diff_setup_done(&rev_info.diffopt);
2250        result = run_diff_index(&rev_info, 1);
2251        return diff_result_code(&rev_info.diffopt, result);
2252}
2253
2254/**
2255 * If the work tree has unstaged or uncommitted changes, dies with the
2256 * appropriate message.
2257 */
2258int require_clean_work_tree(const char *action, const char *hint, int ignore_submodules, int gently)
2259{
2260        struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
2261        int err = 0, fd;
2262
2263        fd = hold_locked_index(lock_file, 0);
2264        refresh_cache(REFRESH_QUIET);
2265        if (0 <= fd)
2266                update_index_if_able(&the_index, lock_file);
2267        rollback_lock_file(lock_file);
2268
2269        if (has_unstaged_changes(ignore_submodules)) {
2270                /* TRANSLATORS: the action is e.g. "pull with rebase" */
2271                error(_("cannot %s: You have unstaged changes."), _(action));
2272                err = 1;
2273        }
2274
2275        if (has_uncommitted_changes(ignore_submodules)) {
2276                if (err)
2277                        error(_("additionally, your index contains uncommitted changes."));
2278                else
2279                        error(_("cannot %s: Your index contains uncommitted changes."),
2280                              _(action));
2281                err = 1;
2282        }
2283
2284        if (err) {
2285                if (hint)
2286                        error("%s", hint);
2287                if (!gently)
2288                        exit(128);
2289        }
2290
2291        return err;
2292}