wt-status.con commit t/t2021-checkout-last: "checkout -" should work after a rebase finishes (89f2fea)
   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 "remote.h"
  12#include "refs.h"
  13#include "submodule.h"
  14#include "column.h"
  15#include "strbuf.h"
  16
  17static char default_wt_status_colors[][COLOR_MAXLEN] = {
  18        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  19        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  20        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  21        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  22        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  23        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  24        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  25        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  26        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  27};
  28
  29static const char *color(int slot, struct wt_status *s)
  30{
  31        const char *c = "";
  32        if (want_color(s->use_color))
  33                c = s->color_palette[slot];
  34        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  35                c = s->color_palette[WT_STATUS_HEADER];
  36        return c;
  37}
  38
  39static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  40                const char *fmt, va_list ap, const char *trail)
  41{
  42        struct strbuf sb = STRBUF_INIT;
  43        struct strbuf linebuf = STRBUF_INIT;
  44        const char *line, *eol;
  45
  46        strbuf_vaddf(&sb, fmt, ap);
  47        if (!sb.len) {
  48                strbuf_addch(&sb, comment_line_char);
  49                if (!trail)
  50                        strbuf_addch(&sb, ' ');
  51                color_print_strbuf(s->fp, color, &sb);
  52                if (trail)
  53                        fprintf(s->fp, "%s", trail);
  54                strbuf_release(&sb);
  55                return;
  56        }
  57        for (line = sb.buf; *line; line = eol + 1) {
  58                eol = strchr(line, '\n');
  59
  60                strbuf_reset(&linebuf);
  61                if (at_bol) {
  62                        strbuf_addch(&linebuf, comment_line_char);
  63                        if (*line != '\n' && *line != '\t')
  64                                strbuf_addch(&linebuf, ' ');
  65                }
  66                if (eol)
  67                        strbuf_add(&linebuf, line, eol - line);
  68                else
  69                        strbuf_addstr(&linebuf, line);
  70                color_print_strbuf(s->fp, color, &linebuf);
  71                if (eol)
  72                        fprintf(s->fp, "\n");
  73                else
  74                        break;
  75                at_bol = 1;
  76        }
  77        if (trail)
  78                fprintf(s->fp, "%s", trail);
  79        strbuf_release(&linebuf);
  80        strbuf_release(&sb);
  81}
  82
  83void status_printf_ln(struct wt_status *s, const char *color,
  84                        const char *fmt, ...)
  85{
  86        va_list ap;
  87
  88        va_start(ap, fmt);
  89        status_vprintf(s, 1, color, fmt, ap, "\n");
  90        va_end(ap);
  91}
  92
  93void status_printf(struct wt_status *s, const char *color,
  94                        const char *fmt, ...)
  95{
  96        va_list ap;
  97
  98        va_start(ap, fmt);
  99        status_vprintf(s, 1, color, fmt, ap, NULL);
 100        va_end(ap);
 101}
 102
 103static void status_printf_more(struct wt_status *s, const char *color,
 104                               const char *fmt, ...)
 105{
 106        va_list ap;
 107
 108        va_start(ap, fmt);
 109        status_vprintf(s, 0, color, fmt, ap, NULL);
 110        va_end(ap);
 111}
 112
 113void wt_status_prepare(struct wt_status *s)
 114{
 115        unsigned char sha1[20];
 116
 117        memset(s, 0, sizeof(*s));
 118        memcpy(s->color_palette, default_wt_status_colors,
 119               sizeof(default_wt_status_colors));
 120        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 121        s->use_color = -1;
 122        s->relative_paths = 1;
 123        s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 124        s->reference = "HEAD";
 125        s->fp = stdout;
 126        s->index_file = get_index_file();
 127        s->change.strdup_strings = 1;
 128        s->untracked.strdup_strings = 1;
 129        s->ignored.strdup_strings = 1;
 130}
 131
 132static void wt_status_print_unmerged_header(struct wt_status *s)
 133{
 134        int i;
 135        int del_mod_conflict = 0;
 136        int both_deleted = 0;
 137        int not_deleted = 0;
 138        const char *c = color(WT_STATUS_HEADER, s);
 139
 140        status_printf_ln(s, c, _("Unmerged paths:"));
 141
 142        for (i = 0; i < s->change.nr; i++) {
 143                struct string_list_item *it = &(s->change.items[i]);
 144                struct wt_status_change_data *d = it->util;
 145
 146                switch (d->stagemask) {
 147                case 0:
 148                        break;
 149                case 1:
 150                        both_deleted = 1;
 151                        break;
 152                case 3:
 153                case 5:
 154                        del_mod_conflict = 1;
 155                        break;
 156                default:
 157                        not_deleted = 1;
 158                        break;
 159                }
 160        }
 161
 162        if (!advice_status_hints)
 163                return;
 164        if (s->whence != FROM_COMMIT)
 165                ;
 166        else if (!s->is_initial)
 167                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 168        else
 169                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 170
 171        if (!both_deleted) {
 172                if (!del_mod_conflict)
 173                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 174                else
 175                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 176        } else if (!del_mod_conflict && !not_deleted) {
 177                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 178        } else {
 179                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 180        }
 181        status_printf_ln(s, c, "");
 182}
 183
 184static void wt_status_print_cached_header(struct wt_status *s)
 185{
 186        const char *c = color(WT_STATUS_HEADER, s);
 187
 188        status_printf_ln(s, c, _("Changes to be committed:"));
 189        if (!advice_status_hints)
 190                return;
 191        if (s->whence != FROM_COMMIT)
 192                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 193        else if (!s->is_initial)
 194                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 195        else
 196                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 197        status_printf_ln(s, c, "");
 198}
 199
 200static void wt_status_print_dirty_header(struct wt_status *s,
 201                                         int has_deleted,
 202                                         int has_dirty_submodules)
 203{
 204        const char *c = color(WT_STATUS_HEADER, s);
 205
 206        status_printf_ln(s, c, _("Changes not staged for commit:"));
 207        if (!advice_status_hints)
 208                return;
 209        if (!has_deleted)
 210                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 211        else
 212                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 213        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 214        if (has_dirty_submodules)
 215                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 216        status_printf_ln(s, c, "");
 217}
 218
 219static void wt_status_print_other_header(struct wt_status *s,
 220                                         const char *what,
 221                                         const char *how)
 222{
 223        const char *c = color(WT_STATUS_HEADER, s);
 224        status_printf_ln(s, c, "%s:", what);
 225        if (!advice_status_hints)
 226                return;
 227        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 228        status_printf_ln(s, c, "");
 229}
 230
 231static void wt_status_print_trailer(struct wt_status *s)
 232{
 233        status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 234}
 235
 236#define quote_path quote_path_relative
 237
 238static void wt_status_print_unmerged_data(struct wt_status *s,
 239                                          struct string_list_item *it)
 240{
 241        const char *c = color(WT_STATUS_UNMERGED, s);
 242        struct wt_status_change_data *d = it->util;
 243        struct strbuf onebuf = STRBUF_INIT;
 244        const char *one, *how = _("bug");
 245
 246        one = quote_path(it->string, -1, &onebuf, s->prefix);
 247        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 248        switch (d->stagemask) {
 249        case 1: how = _("both deleted:"); break;
 250        case 2: how = _("added by us:"); break;
 251        case 3: how = _("deleted by them:"); break;
 252        case 4: how = _("added by them:"); break;
 253        case 5: how = _("deleted by us:"); break;
 254        case 6: how = _("both added:"); break;
 255        case 7: how = _("both modified:"); break;
 256        }
 257        status_printf_more(s, c, "%-20s%s\n", how, one);
 258        strbuf_release(&onebuf);
 259}
 260
 261static void wt_status_print_change_data(struct wt_status *s,
 262                                        int change_type,
 263                                        struct string_list_item *it)
 264{
 265        struct wt_status_change_data *d = it->util;
 266        const char *c = color(change_type, s);
 267        int status;
 268        char *one_name;
 269        char *two_name;
 270        const char *one, *two;
 271        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 272        struct strbuf extra = STRBUF_INIT;
 273
 274        one_name = two_name = it->string;
 275        switch (change_type) {
 276        case WT_STATUS_UPDATED:
 277                status = d->index_status;
 278                if (d->head_path)
 279                        one_name = d->head_path;
 280                break;
 281        case WT_STATUS_CHANGED:
 282                if (d->new_submodule_commits || d->dirty_submodule) {
 283                        strbuf_addstr(&extra, " (");
 284                        if (d->new_submodule_commits)
 285                                strbuf_addf(&extra, _("new commits, "));
 286                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 287                                strbuf_addf(&extra, _("modified content, "));
 288                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 289                                strbuf_addf(&extra, _("untracked content, "));
 290                        strbuf_setlen(&extra, extra.len - 2);
 291                        strbuf_addch(&extra, ')');
 292                }
 293                status = d->worktree_status;
 294                break;
 295        default:
 296                die("BUG: unhandled change_type %d in wt_status_print_change_data",
 297                    change_type);
 298        }
 299
 300        one = quote_path(one_name, -1, &onebuf, s->prefix);
 301        two = quote_path(two_name, -1, &twobuf, s->prefix);
 302
 303        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 304        switch (status) {
 305        case DIFF_STATUS_ADDED:
 306                status_printf_more(s, c, _("new file:   %s"), one);
 307                break;
 308        case DIFF_STATUS_COPIED:
 309                status_printf_more(s, c, _("copied:     %s -> %s"), one, two);
 310                break;
 311        case DIFF_STATUS_DELETED:
 312                status_printf_more(s, c, _("deleted:    %s"), one);
 313                break;
 314        case DIFF_STATUS_MODIFIED:
 315                status_printf_more(s, c, _("modified:   %s"), one);
 316                break;
 317        case DIFF_STATUS_RENAMED:
 318                status_printf_more(s, c, _("renamed:    %s -> %s"), one, two);
 319                break;
 320        case DIFF_STATUS_TYPE_CHANGED:
 321                status_printf_more(s, c, _("typechange: %s"), one);
 322                break;
 323        case DIFF_STATUS_UNKNOWN:
 324                status_printf_more(s, c, _("unknown:    %s"), one);
 325                break;
 326        case DIFF_STATUS_UNMERGED:
 327                status_printf_more(s, c, _("unmerged:   %s"), one);
 328                break;
 329        default:
 330                die(_("bug: unhandled diff status %c"), status);
 331        }
 332        if (extra.len) {
 333                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 334                strbuf_release(&extra);
 335        }
 336        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 337        strbuf_release(&onebuf);
 338        strbuf_release(&twobuf);
 339}
 340
 341static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 342                                         struct diff_options *options,
 343                                         void *data)
 344{
 345        struct wt_status *s = data;
 346        int i;
 347
 348        if (!q->nr)
 349                return;
 350        s->workdir_dirty = 1;
 351        for (i = 0; i < q->nr; i++) {
 352                struct diff_filepair *p;
 353                struct string_list_item *it;
 354                struct wt_status_change_data *d;
 355
 356                p = q->queue[i];
 357                it = string_list_insert(&s->change, p->one->path);
 358                d = it->util;
 359                if (!d) {
 360                        d = xcalloc(1, sizeof(*d));
 361                        it->util = d;
 362                }
 363                if (!d->worktree_status)
 364                        d->worktree_status = p->status;
 365                d->dirty_submodule = p->two->dirty_submodule;
 366                if (S_ISGITLINK(p->two->mode))
 367                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 368        }
 369}
 370
 371static int unmerged_mask(const char *path)
 372{
 373        int pos, mask;
 374        struct cache_entry *ce;
 375
 376        pos = cache_name_pos(path, strlen(path));
 377        if (0 <= pos)
 378                return 0;
 379
 380        mask = 0;
 381        pos = -pos-1;
 382        while (pos < active_nr) {
 383                ce = active_cache[pos++];
 384                if (strcmp(ce->name, path) || !ce_stage(ce))
 385                        break;
 386                mask |= (1 << (ce_stage(ce) - 1));
 387        }
 388        return mask;
 389}
 390
 391static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 392                                         struct diff_options *options,
 393                                         void *data)
 394{
 395        struct wt_status *s = data;
 396        int i;
 397
 398        for (i = 0; i < q->nr; i++) {
 399                struct diff_filepair *p;
 400                struct string_list_item *it;
 401                struct wt_status_change_data *d;
 402
 403                p = q->queue[i];
 404                it = string_list_insert(&s->change, p->two->path);
 405                d = it->util;
 406                if (!d) {
 407                        d = xcalloc(1, sizeof(*d));
 408                        it->util = d;
 409                }
 410                if (!d->index_status)
 411                        d->index_status = p->status;
 412                switch (p->status) {
 413                case DIFF_STATUS_COPIED:
 414                case DIFF_STATUS_RENAMED:
 415                        d->head_path = xstrdup(p->one->path);
 416                        break;
 417                case DIFF_STATUS_UNMERGED:
 418                        d->stagemask = unmerged_mask(p->two->path);
 419                        break;
 420                }
 421        }
 422}
 423
 424static void wt_status_collect_changes_worktree(struct wt_status *s)
 425{
 426        struct rev_info rev;
 427
 428        init_revisions(&rev, NULL);
 429        setup_revisions(0, NULL, &rev, NULL);
 430        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 431        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 432        if (!s->show_untracked_files)
 433                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 434        if (s->ignore_submodule_arg) {
 435                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 436                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 437        }
 438        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 439        rev.diffopt.format_callback_data = s;
 440        init_pathspec(&rev.prune_data, s->pathspec);
 441        run_diff_files(&rev, 0);
 442}
 443
 444static void wt_status_collect_changes_index(struct wt_status *s)
 445{
 446        struct rev_info rev;
 447        struct setup_revision_opt opt;
 448
 449        init_revisions(&rev, NULL);
 450        memset(&opt, 0, sizeof(opt));
 451        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 452        setup_revisions(0, NULL, &rev, &opt);
 453
 454        if (s->ignore_submodule_arg) {
 455                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 456                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 457        }
 458
 459        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 460        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 461        rev.diffopt.format_callback_data = s;
 462        rev.diffopt.detect_rename = 1;
 463        rev.diffopt.rename_limit = 200;
 464        rev.diffopt.break_opt = 0;
 465        init_pathspec(&rev.prune_data, s->pathspec);
 466        run_diff_index(&rev, 1);
 467}
 468
 469static void wt_status_collect_changes_initial(struct wt_status *s)
 470{
 471        struct pathspec pathspec;
 472        int i;
 473
 474        init_pathspec(&pathspec, s->pathspec);
 475        for (i = 0; i < active_nr; i++) {
 476                struct string_list_item *it;
 477                struct wt_status_change_data *d;
 478                struct cache_entry *ce = active_cache[i];
 479
 480                if (!ce_path_match(ce, &pathspec))
 481                        continue;
 482                it = string_list_insert(&s->change, ce->name);
 483                d = it->util;
 484                if (!d) {
 485                        d = xcalloc(1, sizeof(*d));
 486                        it->util = d;
 487                }
 488                if (ce_stage(ce)) {
 489                        d->index_status = DIFF_STATUS_UNMERGED;
 490                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 491                }
 492                else
 493                        d->index_status = DIFF_STATUS_ADDED;
 494        }
 495        free_pathspec(&pathspec);
 496}
 497
 498static void wt_status_collect_untracked(struct wt_status *s)
 499{
 500        int i;
 501        struct dir_struct dir;
 502        struct timeval t_begin;
 503
 504        if (!s->show_untracked_files)
 505                return;
 506
 507        if (advice_status_u_option)
 508                gettimeofday(&t_begin, NULL);
 509
 510        memset(&dir, 0, sizeof(dir));
 511        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 512                dir.flags |=
 513                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 514        if (s->show_ignored_files)
 515                dir.flags |= DIR_SHOW_IGNORED_TOO;
 516        setup_standard_excludes(&dir);
 517
 518        fill_directory(&dir, s->pathspec);
 519
 520        for (i = 0; i < dir.nr; i++) {
 521                struct dir_entry *ent = dir.entries[i];
 522                if (cache_name_is_other(ent->name, ent->len) &&
 523                    match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 524                        string_list_insert(&s->untracked, ent->name);
 525                free(ent);
 526        }
 527
 528        for (i = 0; i < dir.ignored_nr; i++) {
 529                struct dir_entry *ent = dir.ignored[i];
 530                if (cache_name_is_other(ent->name, ent->len) &&
 531                    match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 532                        string_list_insert(&s->ignored, ent->name);
 533                free(ent);
 534        }
 535
 536        free(dir.entries);
 537        free(dir.ignored);
 538        clear_directory(&dir);
 539
 540        if (advice_status_u_option) {
 541                struct timeval t_end;
 542                gettimeofday(&t_end, NULL);
 543                s->untracked_in_ms =
 544                        (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 545                        ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 546        }
 547}
 548
 549void wt_status_collect(struct wt_status *s)
 550{
 551        wt_status_collect_changes_worktree(s);
 552
 553        if (s->is_initial)
 554                wt_status_collect_changes_initial(s);
 555        else
 556                wt_status_collect_changes_index(s);
 557        wt_status_collect_untracked(s);
 558}
 559
 560static void wt_status_print_unmerged(struct wt_status *s)
 561{
 562        int shown_header = 0;
 563        int i;
 564
 565        for (i = 0; i < s->change.nr; i++) {
 566                struct wt_status_change_data *d;
 567                struct string_list_item *it;
 568                it = &(s->change.items[i]);
 569                d = it->util;
 570                if (!d->stagemask)
 571                        continue;
 572                if (!shown_header) {
 573                        wt_status_print_unmerged_header(s);
 574                        shown_header = 1;
 575                }
 576                wt_status_print_unmerged_data(s, it);
 577        }
 578        if (shown_header)
 579                wt_status_print_trailer(s);
 580
 581}
 582
 583static void wt_status_print_updated(struct wt_status *s)
 584{
 585        int shown_header = 0;
 586        int i;
 587
 588        for (i = 0; i < s->change.nr; i++) {
 589                struct wt_status_change_data *d;
 590                struct string_list_item *it;
 591                it = &(s->change.items[i]);
 592                d = it->util;
 593                if (!d->index_status ||
 594                    d->index_status == DIFF_STATUS_UNMERGED)
 595                        continue;
 596                if (!shown_header) {
 597                        wt_status_print_cached_header(s);
 598                        s->commitable = 1;
 599                        shown_header = 1;
 600                }
 601                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 602        }
 603        if (shown_header)
 604                wt_status_print_trailer(s);
 605}
 606
 607/*
 608 * -1 : has delete
 609 *  0 : no change
 610 *  1 : some change but no delete
 611 */
 612static int wt_status_check_worktree_changes(struct wt_status *s,
 613                                             int *dirty_submodules)
 614{
 615        int i;
 616        int changes = 0;
 617
 618        *dirty_submodules = 0;
 619
 620        for (i = 0; i < s->change.nr; i++) {
 621                struct wt_status_change_data *d;
 622                d = s->change.items[i].util;
 623                if (!d->worktree_status ||
 624                    d->worktree_status == DIFF_STATUS_UNMERGED)
 625                        continue;
 626                if (!changes)
 627                        changes = 1;
 628                if (d->dirty_submodule)
 629                        *dirty_submodules = 1;
 630                if (d->worktree_status == DIFF_STATUS_DELETED)
 631                        changes = -1;
 632        }
 633        return changes;
 634}
 635
 636static void wt_status_print_changed(struct wt_status *s)
 637{
 638        int i, dirty_submodules;
 639        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 640
 641        if (!worktree_changes)
 642                return;
 643
 644        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 645
 646        for (i = 0; i < s->change.nr; i++) {
 647                struct wt_status_change_data *d;
 648                struct string_list_item *it;
 649                it = &(s->change.items[i]);
 650                d = it->util;
 651                if (!d->worktree_status ||
 652                    d->worktree_status == DIFF_STATUS_UNMERGED)
 653                        continue;
 654                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 655        }
 656        wt_status_print_trailer(s);
 657}
 658
 659static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 660{
 661        struct child_process sm_summary;
 662        char summary_limit[64];
 663        char index[PATH_MAX];
 664        const char *env[] = { NULL, NULL };
 665        const char *argv[8];
 666
 667        env[0] =        index;
 668        argv[0] =       "submodule";
 669        argv[1] =       "summary";
 670        argv[2] =       uncommitted ? "--files" : "--cached";
 671        argv[3] =       "--for-status";
 672        argv[4] =       "--summary-limit";
 673        argv[5] =       summary_limit;
 674        argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 675        argv[7] =       NULL;
 676
 677        sprintf(summary_limit, "%d", s->submodule_summary);
 678        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 679
 680        memset(&sm_summary, 0, sizeof(sm_summary));
 681        sm_summary.argv = argv;
 682        sm_summary.env = env;
 683        sm_summary.git_cmd = 1;
 684        sm_summary.no_stdin = 1;
 685        fflush(s->fp);
 686        sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 687        run_command(&sm_summary);
 688}
 689
 690static void wt_status_print_other(struct wt_status *s,
 691                                  struct string_list *l,
 692                                  const char *what,
 693                                  const char *how)
 694{
 695        int i;
 696        struct strbuf buf = STRBUF_INIT;
 697        static struct string_list output = STRING_LIST_INIT_DUP;
 698        struct column_options copts;
 699
 700        if (!l->nr)
 701                return;
 702
 703        wt_status_print_other_header(s, what, how);
 704
 705        for (i = 0; i < l->nr; i++) {
 706                struct string_list_item *it;
 707                const char *path;
 708                it = &(l->items[i]);
 709                path = quote_path(it->string, strlen(it->string),
 710                                  &buf, s->prefix);
 711                if (column_active(s->colopts)) {
 712                        string_list_append(&output, path);
 713                        continue;
 714                }
 715                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 716                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 717                                   "%s\n", path);
 718        }
 719
 720        strbuf_release(&buf);
 721        if (!column_active(s->colopts))
 722                return;
 723
 724        strbuf_addf(&buf, "%s#\t%s",
 725                    color(WT_STATUS_HEADER, s),
 726                    color(WT_STATUS_UNTRACKED, s));
 727        memset(&copts, 0, sizeof(copts));
 728        copts.padding = 1;
 729        copts.indent = buf.buf;
 730        if (want_color(s->use_color))
 731                copts.nl = GIT_COLOR_RESET "\n";
 732        print_columns(&output, s->colopts, &copts);
 733        string_list_clear(&output, 0);
 734        strbuf_release(&buf);
 735}
 736
 737static void wt_status_print_verbose(struct wt_status *s)
 738{
 739        struct rev_info rev;
 740        struct setup_revision_opt opt;
 741
 742        init_revisions(&rev, NULL);
 743        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 744
 745        memset(&opt, 0, sizeof(opt));
 746        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 747        setup_revisions(0, NULL, &rev, &opt);
 748
 749        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 750        rev.diffopt.detect_rename = 1;
 751        rev.diffopt.file = s->fp;
 752        rev.diffopt.close_file = 0;
 753        /*
 754         * If we're not going to stdout, then we definitely don't
 755         * want color, since we are going to the commit message
 756         * file (and even the "auto" setting won't work, since it
 757         * will have checked isatty on stdout).
 758         */
 759        if (s->fp != stdout)
 760                rev.diffopt.use_color = 0;
 761        run_diff_index(&rev, 1);
 762}
 763
 764static void wt_status_print_tracking(struct wt_status *s)
 765{
 766        struct strbuf sb = STRBUF_INIT;
 767        const char *cp, *ep;
 768        struct branch *branch;
 769
 770        assert(s->branch && !s->is_initial);
 771        if (prefixcmp(s->branch, "refs/heads/"))
 772                return;
 773        branch = branch_get(s->branch + 11);
 774        if (!format_tracking_info(branch, &sb))
 775                return;
 776
 777        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 778                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 779                                 "%c %.*s", comment_line_char,
 780                                 (int)(ep - cp), cp);
 781        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 782                         comment_line_char);
 783}
 784
 785static int has_unmerged(struct wt_status *s)
 786{
 787        int i;
 788
 789        for (i = 0; i < s->change.nr; i++) {
 790                struct wt_status_change_data *d;
 791                d = s->change.items[i].util;
 792                if (d->stagemask)
 793                        return 1;
 794        }
 795        return 0;
 796}
 797
 798static void show_merge_in_progress(struct wt_status *s,
 799                                struct wt_status_state *state,
 800                                const char *color)
 801{
 802        if (has_unmerged(s)) {
 803                status_printf_ln(s, color, _("You have unmerged paths."));
 804                if (advice_status_hints)
 805                        status_printf_ln(s, color,
 806                                _("  (fix conflicts and run \"git commit\")"));
 807        } else {
 808                status_printf_ln(s, color,
 809                        _("All conflicts fixed but you are still merging."));
 810                if (advice_status_hints)
 811                        status_printf_ln(s, color,
 812                                _("  (use \"git commit\" to conclude merge)"));
 813        }
 814        wt_status_print_trailer(s);
 815}
 816
 817static void show_am_in_progress(struct wt_status *s,
 818                                struct wt_status_state *state,
 819                                const char *color)
 820{
 821        status_printf_ln(s, color,
 822                _("You are in the middle of an am session."));
 823        if (state->am_empty_patch)
 824                status_printf_ln(s, color,
 825                        _("The current patch is empty."));
 826        if (advice_status_hints) {
 827                if (!state->am_empty_patch)
 828                        status_printf_ln(s, color,
 829                                _("  (fix conflicts and then run \"git am --resolved\")"));
 830                status_printf_ln(s, color,
 831                        _("  (use \"git am --skip\" to skip this patch)"));
 832                status_printf_ln(s, color,
 833                        _("  (use \"git am --abort\" to restore the original branch)"));
 834        }
 835        wt_status_print_trailer(s);
 836}
 837
 838static char *read_line_from_git_path(const char *filename)
 839{
 840        struct strbuf buf = STRBUF_INIT;
 841        FILE *fp = fopen(git_path("%s", filename), "r");
 842        if (!fp) {
 843                strbuf_release(&buf);
 844                return NULL;
 845        }
 846        strbuf_getline(&buf, fp, '\n');
 847        if (!fclose(fp)) {
 848                return strbuf_detach(&buf, NULL);
 849        } else {
 850                strbuf_release(&buf);
 851                return NULL;
 852        }
 853}
 854
 855static int split_commit_in_progress(struct wt_status *s)
 856{
 857        int split_in_progress = 0;
 858        char *head = read_line_from_git_path("HEAD");
 859        char *orig_head = read_line_from_git_path("ORIG_HEAD");
 860        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 861        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 862
 863        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 864            !s->branch || strcmp(s->branch, "HEAD"))
 865                return split_in_progress;
 866
 867        if (!strcmp(rebase_amend, rebase_orig_head)) {
 868                if (strcmp(head, rebase_amend))
 869                        split_in_progress = 1;
 870        } else if (strcmp(orig_head, rebase_orig_head)) {
 871                split_in_progress = 1;
 872        }
 873
 874        if (!s->amend && !s->nowarn && !s->workdir_dirty)
 875                split_in_progress = 0;
 876
 877        free(head);
 878        free(orig_head);
 879        free(rebase_amend);
 880        free(rebase_orig_head);
 881        return split_in_progress;
 882}
 883
 884static void show_rebase_in_progress(struct wt_status *s,
 885                                struct wt_status_state *state,
 886                                const char *color)
 887{
 888        struct stat st;
 889
 890        if (has_unmerged(s)) {
 891                if (state->branch)
 892                        status_printf_ln(s, color,
 893                                         _("You are currently rebasing branch '%s' on '%s'."),
 894                                         state->branch,
 895                                         state->onto);
 896                else
 897                        status_printf_ln(s, color,
 898                                         _("You are currently rebasing."));
 899                if (advice_status_hints) {
 900                        status_printf_ln(s, color,
 901                                _("  (fix conflicts and then run \"git rebase --continue\")"));
 902                        status_printf_ln(s, color,
 903                                _("  (use \"git rebase --skip\" to skip this patch)"));
 904                        status_printf_ln(s, color,
 905                                _("  (use \"git rebase --abort\" to check out the original branch)"));
 906                }
 907        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
 908                if (state->branch)
 909                        status_printf_ln(s, color,
 910                                         _("You are currently rebasing branch '%s' on '%s'."),
 911                                         state->branch,
 912                                         state->onto);
 913                else
 914                        status_printf_ln(s, color,
 915                                         _("You are currently rebasing."));
 916                if (advice_status_hints)
 917                        status_printf_ln(s, color,
 918                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
 919        } else if (split_commit_in_progress(s)) {
 920                if (state->branch)
 921                        status_printf_ln(s, color,
 922                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
 923                                         state->branch,
 924                                         state->onto);
 925                else
 926                        status_printf_ln(s, color,
 927                                         _("You are currently splitting a commit during a rebase."));
 928                if (advice_status_hints)
 929                        status_printf_ln(s, color,
 930                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
 931        } else {
 932                if (state->branch)
 933                        status_printf_ln(s, color,
 934                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
 935                                         state->branch,
 936                                         state->onto);
 937                else
 938                        status_printf_ln(s, color,
 939                                         _("You are currently editing a commit during a rebase."));
 940                if (advice_status_hints && !s->amend) {
 941                        status_printf_ln(s, color,
 942                                _("  (use \"git commit --amend\" to amend the current commit)"));
 943                        status_printf_ln(s, color,
 944                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
 945                }
 946        }
 947        wt_status_print_trailer(s);
 948}
 949
 950static void show_cherry_pick_in_progress(struct wt_status *s,
 951                                        struct wt_status_state *state,
 952                                        const char *color)
 953{
 954        status_printf_ln(s, color, _("You are currently cherry-picking."));
 955        if (advice_status_hints) {
 956                if (has_unmerged(s))
 957                        status_printf_ln(s, color,
 958                                _("  (fix conflicts and run \"git commit\")"));
 959                else
 960                        status_printf_ln(s, color,
 961                                _("  (all conflicts fixed: run \"git commit\")"));
 962        }
 963        wt_status_print_trailer(s);
 964}
 965
 966static void show_revert_in_progress(struct wt_status *s,
 967                                        struct wt_status_state *state,
 968                                        const char *color)
 969{
 970        status_printf_ln(s, color, _("You are currently reverting commit %s."),
 971                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
 972        if (advice_status_hints) {
 973                if (has_unmerged(s))
 974                        status_printf_ln(s, color,
 975                                _("  (fix conflicts and run \"git revert --continue\")"));
 976                else
 977                        status_printf_ln(s, color,
 978                                _("  (all conflicts fixed: run \"git revert --continue\")"));
 979                status_printf_ln(s, color,
 980                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
 981        }
 982        wt_status_print_trailer(s);
 983}
 984
 985static void show_bisect_in_progress(struct wt_status *s,
 986                                struct wt_status_state *state,
 987                                const char *color)
 988{
 989        if (state->branch)
 990                status_printf_ln(s, color,
 991                                 _("You are currently bisecting, started from branch '%s'."),
 992                                 state->branch);
 993        else
 994                status_printf_ln(s, color,
 995                                 _("You are currently bisecting."));
 996        if (advice_status_hints)
 997                status_printf_ln(s, color,
 998                        _("  (use \"git bisect reset\" to get back to the original branch)"));
 999        wt_status_print_trailer(s);
1000}
1001
1002/*
1003 * Extract branch information from rebase/bisect
1004 */
1005static char *read_and_strip_branch(const char *path)
1006{
1007        struct strbuf sb = STRBUF_INIT;
1008        unsigned char sha1[20];
1009
1010        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1011                goto got_nothing;
1012
1013        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1014                strbuf_setlen(&sb, sb.len - 1);
1015        if (!sb.len)
1016                goto got_nothing;
1017        if (!prefixcmp(sb.buf, "refs/heads/"))
1018                strbuf_remove(&sb,0, strlen("refs/heads/"));
1019        else if (!prefixcmp(sb.buf, "refs/"))
1020                ;
1021        else if (!get_sha1_hex(sb.buf, sha1)) {
1022                const char *abbrev;
1023                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1024                strbuf_reset(&sb);
1025                strbuf_addstr(&sb, abbrev);
1026        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1027                goto got_nothing;
1028        else                    /* bisect */
1029                ;
1030        return strbuf_detach(&sb, NULL);
1031
1032got_nothing:
1033        strbuf_release(&sb);
1034        return NULL;
1035}
1036
1037struct grab_1st_switch_cbdata {
1038        struct strbuf buf;
1039        unsigned char nsha1[20];
1040};
1041
1042static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1043                           const char *email, unsigned long timestamp, int tz,
1044                           const char *message, void *cb_data)
1045{
1046        struct grab_1st_switch_cbdata *cb = cb_data;
1047        const char *target = NULL, *end;
1048
1049        if (prefixcmp(message, "checkout: moving from "))
1050                return 0;
1051        message += strlen("checkout: moving from ");
1052        target = strstr(message, " to ");
1053        if (!target)
1054                return 0;
1055        target += strlen(" to ");
1056        strbuf_reset(&cb->buf);
1057        hashcpy(cb->nsha1, nsha1);
1058        for (end = target; *end && *end != '\n'; end++)
1059                ;
1060        strbuf_add(&cb->buf, target, end - target);
1061        return 1;
1062}
1063
1064static void wt_status_get_detached_from(struct wt_status_state *state)
1065{
1066        struct grab_1st_switch_cbdata cb;
1067        struct commit *commit;
1068        unsigned char sha1[20];
1069        char *ref = NULL;
1070
1071        strbuf_init(&cb.buf, 0);
1072        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1073                strbuf_release(&cb.buf);
1074                return;
1075        }
1076
1077        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1078            /* sha1 is a commit? match without further lookup */
1079            (!hashcmp(cb.nsha1, sha1) ||
1080             /* perhaps sha1 is a tag, try to dereference to a commit */
1081             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1082              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1083                int ofs;
1084                if (!prefixcmp(ref, "refs/tags/"))
1085                        ofs = strlen("refs/tags/");
1086                else if (!prefixcmp(ref, "refs/remotes/"))
1087                        ofs = strlen("refs/remotes/");
1088                else
1089                        ofs = 0;
1090                state->detached_from = xstrdup(ref + ofs);
1091        } else
1092                state->detached_from =
1093                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1094        hashcpy(state->detached_sha1, cb.nsha1);
1095
1096        free(ref);
1097        strbuf_release(&cb.buf);
1098}
1099
1100void wt_status_get_state(struct wt_status_state *state,
1101                         int get_detached_from)
1102{
1103        struct stat st;
1104        unsigned char sha1[20];
1105
1106        if (!stat(git_path("MERGE_HEAD"), &st)) {
1107                state->merge_in_progress = 1;
1108        } else if (!stat(git_path("rebase-apply"), &st)) {
1109                if (!stat(git_path("rebase-apply/applying"), &st)) {
1110                        state->am_in_progress = 1;
1111                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1112                                state->am_empty_patch = 1;
1113                } else {
1114                        state->rebase_in_progress = 1;
1115                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1116                        state->onto = read_and_strip_branch("rebase-apply/onto");
1117                }
1118        } else if (!stat(git_path("rebase-merge"), &st)) {
1119                if (!stat(git_path("rebase-merge/interactive"), &st))
1120                        state->rebase_interactive_in_progress = 1;
1121                else
1122                        state->rebase_in_progress = 1;
1123                state->branch = read_and_strip_branch("rebase-merge/head-name");
1124                state->onto = read_and_strip_branch("rebase-merge/onto");
1125        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st)) {
1126                state->cherry_pick_in_progress = 1;
1127        }
1128        if (!stat(git_path("BISECT_LOG"), &st)) {
1129                state->bisect_in_progress = 1;
1130                state->branch = read_and_strip_branch("BISECT_START");
1131        }
1132        if (!stat(git_path("REVERT_HEAD"), &st) &&
1133            !get_sha1("REVERT_HEAD", sha1)) {
1134                state->revert_in_progress = 1;
1135                hashcpy(state->revert_head_sha1, sha1);
1136        }
1137
1138        if (get_detached_from)
1139                wt_status_get_detached_from(state);
1140}
1141
1142static void wt_status_print_state(struct wt_status *s,
1143                                  struct wt_status_state *state)
1144{
1145        const char *state_color = color(WT_STATUS_HEADER, s);
1146        if (state->merge_in_progress)
1147                show_merge_in_progress(s, state, state_color);
1148        else if (state->am_in_progress)
1149                show_am_in_progress(s, state, state_color);
1150        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1151                show_rebase_in_progress(s, state, state_color);
1152        else if (state->cherry_pick_in_progress)
1153                show_cherry_pick_in_progress(s, state, state_color);
1154        else if (state->revert_in_progress)
1155                show_revert_in_progress(s, state, state_color);
1156        if (state->bisect_in_progress)
1157                show_bisect_in_progress(s, state, state_color);
1158}
1159
1160void wt_status_print(struct wt_status *s)
1161{
1162        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1163        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1164        struct wt_status_state state;
1165
1166        memset(&state, 0, sizeof(state));
1167        wt_status_get_state(&state,
1168                            s->branch && !strcmp(s->branch, "HEAD"));
1169
1170        if (s->branch) {
1171                const char *on_what = _("On branch ");
1172                const char *branch_name = s->branch;
1173                if (!prefixcmp(branch_name, "refs/heads/"))
1174                        branch_name += 11;
1175                else if (!strcmp(branch_name, "HEAD")) {
1176                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1177                        if (state.detached_from) {
1178                                unsigned char sha1[20];
1179                                branch_name = state.detached_from;
1180                                if (!get_sha1("HEAD", sha1) &&
1181                                    !hashcmp(sha1, state.detached_sha1))
1182                                        on_what = _("HEAD detached at ");
1183                                else
1184                                        on_what = _("HEAD detached from ");
1185                        } else {
1186                                branch_name = "";
1187                                on_what = _("Not currently on any branch.");
1188                        }
1189                }
1190                status_printf(s, color(WT_STATUS_HEADER, s), "");
1191                status_printf_more(s, branch_status_color, "%s", on_what);
1192                status_printf_more(s, branch_color, "%s\n", branch_name);
1193                if (!s->is_initial)
1194                        wt_status_print_tracking(s);
1195        }
1196
1197        wt_status_print_state(s, &state);
1198        free(state.branch);
1199        free(state.onto);
1200        free(state.detached_from);
1201
1202        if (s->is_initial) {
1203                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1204                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1205                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1206        }
1207
1208        wt_status_print_updated(s);
1209        wt_status_print_unmerged(s);
1210        wt_status_print_changed(s);
1211        if (s->submodule_summary &&
1212            (!s->ignore_submodule_arg ||
1213             strcmp(s->ignore_submodule_arg, "all"))) {
1214                wt_status_print_submodule_summary(s, 0);  /* staged */
1215                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1216        }
1217        if (s->show_untracked_files) {
1218                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1219                if (s->show_ignored_files)
1220                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1221                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1222                        status_printf_ln(s, GIT_COLOR_NORMAL, "");
1223                        status_printf_ln(s, GIT_COLOR_NORMAL,
1224                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1225                                           "may speed it up, but you have to be careful not to forget to add\n"
1226                                           "new files yourself (see 'git help status')."),
1227                                         s->untracked_in_ms / 1000.0);
1228                }
1229        } else if (s->commitable)
1230                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1231                        advice_status_hints
1232                        ? _(" (use -u option to show untracked files)") : "");
1233
1234        if (s->verbose)
1235                wt_status_print_verbose(s);
1236        if (!s->commitable) {
1237                if (s->amend)
1238                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1239                else if (s->nowarn)
1240                        ; /* nothing */
1241                else if (s->workdir_dirty) {
1242                        if (advice_status_hints)
1243                                printf(_("no changes added to commit "
1244                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1245                        else
1246                                printf(_("no changes added to commit\n"));
1247                } else if (s->untracked.nr) {
1248                        if (advice_status_hints)
1249                                printf(_("nothing added to commit but untracked files "
1250                                         "present (use \"git add\" to track)\n"));
1251                        else
1252                                printf(_("nothing added to commit but untracked files present\n"));
1253                } else if (s->is_initial) {
1254                        if (advice_status_hints)
1255                                printf(_("nothing to commit (create/copy files "
1256                                         "and use \"git add\" to track)\n"));
1257                        else
1258                                printf(_("nothing to commit\n"));
1259                } else if (!s->show_untracked_files) {
1260                        if (advice_status_hints)
1261                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1262                        else
1263                                printf(_("nothing to commit\n"));
1264                } else
1265                        printf(_("nothing to commit, working directory clean\n"));
1266        }
1267}
1268
1269static void wt_shortstatus_unmerged(struct string_list_item *it,
1270                           struct wt_status *s)
1271{
1272        struct wt_status_change_data *d = it->util;
1273        const char *how = "??";
1274
1275        switch (d->stagemask) {
1276        case 1: how = "DD"; break; /* both deleted */
1277        case 2: how = "AU"; break; /* added by us */
1278        case 3: how = "UD"; break; /* deleted by them */
1279        case 4: how = "UA"; break; /* added by them */
1280        case 5: how = "DU"; break; /* deleted by us */
1281        case 6: how = "AA"; break; /* both added */
1282        case 7: how = "UU"; break; /* both modified */
1283        }
1284        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1285        if (s->null_termination) {
1286                fprintf(stdout, " %s%c", it->string, 0);
1287        } else {
1288                struct strbuf onebuf = STRBUF_INIT;
1289                const char *one;
1290                one = quote_path(it->string, -1, &onebuf, s->prefix);
1291                printf(" %s\n", one);
1292                strbuf_release(&onebuf);
1293        }
1294}
1295
1296static void wt_shortstatus_status(struct string_list_item *it,
1297                         struct wt_status *s)
1298{
1299        struct wt_status_change_data *d = it->util;
1300
1301        if (d->index_status)
1302                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1303        else
1304                putchar(' ');
1305        if (d->worktree_status)
1306                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1307        else
1308                putchar(' ');
1309        putchar(' ');
1310        if (s->null_termination) {
1311                fprintf(stdout, "%s%c", it->string, 0);
1312                if (d->head_path)
1313                        fprintf(stdout, "%s%c", d->head_path, 0);
1314        } else {
1315                struct strbuf onebuf = STRBUF_INIT;
1316                const char *one;
1317                if (d->head_path) {
1318                        one = quote_path(d->head_path, -1, &onebuf, s->prefix);
1319                        if (*one != '"' && strchr(one, ' ') != NULL) {
1320                                putchar('"');
1321                                strbuf_addch(&onebuf, '"');
1322                                one = onebuf.buf;
1323                        }
1324                        printf("%s -> ", one);
1325                        strbuf_release(&onebuf);
1326                }
1327                one = quote_path(it->string, -1, &onebuf, s->prefix);
1328                if (*one != '"' && strchr(one, ' ') != NULL) {
1329                        putchar('"');
1330                        strbuf_addch(&onebuf, '"');
1331                        one = onebuf.buf;
1332                }
1333                printf("%s\n", one);
1334                strbuf_release(&onebuf);
1335        }
1336}
1337
1338static void wt_shortstatus_other(struct string_list_item *it,
1339                                 struct wt_status *s, const char *sign)
1340{
1341        if (s->null_termination) {
1342                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1343        } else {
1344                struct strbuf onebuf = STRBUF_INIT;
1345                const char *one;
1346                one = quote_path(it->string, -1, &onebuf, s->prefix);
1347                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1348                printf(" %s\n", one);
1349                strbuf_release(&onebuf);
1350        }
1351}
1352
1353static void wt_shortstatus_print_tracking(struct wt_status *s)
1354{
1355        struct branch *branch;
1356        const char *header_color = color(WT_STATUS_HEADER, s);
1357        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1358        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1359
1360        const char *base;
1361        const char *branch_name;
1362        int num_ours, num_theirs;
1363
1364        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1365
1366        if (!s->branch)
1367                return;
1368        branch_name = s->branch;
1369
1370        if (!prefixcmp(branch_name, "refs/heads/"))
1371                branch_name += 11;
1372        else if (!strcmp(branch_name, "HEAD")) {
1373                branch_name = _("HEAD (no branch)");
1374                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1375        }
1376
1377        branch = branch_get(s->branch + 11);
1378        if (s->is_initial)
1379                color_fprintf(s->fp, header_color, _("Initial commit on "));
1380        if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
1381                color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1382                fputc(s->null_termination ? '\0' : '\n', s->fp);
1383                return;
1384        }
1385
1386        base = branch->merge[0]->dst;
1387        base = shorten_unambiguous_ref(base, 0);
1388        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1389        color_fprintf(s->fp, header_color, "...");
1390        color_fprintf(s->fp, branch_color_remote, "%s", base);
1391
1392        color_fprintf(s->fp, header_color, " [");
1393        if (!num_ours) {
1394                color_fprintf(s->fp, header_color, _("behind "));
1395                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1396        } else if (!num_theirs) {
1397                color_fprintf(s->fp, header_color, _("ahead "));
1398                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1399        } else {
1400                color_fprintf(s->fp, header_color, _("ahead "));
1401                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1402                color_fprintf(s->fp, header_color, _(", behind "));
1403                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1404        }
1405
1406        color_fprintf(s->fp, header_color, "]");
1407        fputc(s->null_termination ? '\0' : '\n', s->fp);
1408}
1409
1410void wt_shortstatus_print(struct wt_status *s)
1411{
1412        int i;
1413
1414        if (s->show_branch)
1415                wt_shortstatus_print_tracking(s);
1416
1417        for (i = 0; i < s->change.nr; i++) {
1418                struct wt_status_change_data *d;
1419                struct string_list_item *it;
1420
1421                it = &(s->change.items[i]);
1422                d = it->util;
1423                if (d->stagemask)
1424                        wt_shortstatus_unmerged(it, s);
1425                else
1426                        wt_shortstatus_status(it, s);
1427        }
1428        for (i = 0; i < s->untracked.nr; i++) {
1429                struct string_list_item *it;
1430
1431                it = &(s->untracked.items[i]);
1432                wt_shortstatus_other(it, s, "??");
1433        }
1434        for (i = 0; i < s->ignored.nr; i++) {
1435                struct string_list_item *it;
1436
1437                it = &(s->ignored.items[i]);
1438                wt_shortstatus_other(it, s, "!!");
1439        }
1440}
1441
1442void wt_porcelain_print(struct wt_status *s)
1443{
1444        s->use_color = 0;
1445        s->relative_paths = 0;
1446        s->prefix = NULL;
1447        wt_shortstatus_print(s);
1448}