wt-status.con commit tree-diff: remove the use of pathspec's raw[] in follow-rename codepath (61588cc)
   1#include "cache.h"
   2#include "pathspec.h"
   3#include "wt-status.h"
   4#include "object.h"
   5#include "dir.h"
   6#include "commit.h"
   7#include "diff.h"
   8#include "revision.h"
   9#include "diffcore.h"
  10#include "quote.h"
  11#include "run-command.h"
  12#include "remote.h"
  13#include "refs.h"
  14#include "submodule.h"
  15#include "column.h"
  16#include "strbuf.h"
  17
  18static char default_wt_status_colors[][COLOR_MAXLEN] = {
  19        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  20        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  21        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  22        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  23        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  24        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  25        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  26        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  27        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  28};
  29
  30static const char *color(int slot, struct wt_status *s)
  31{
  32        const char *c = "";
  33        if (want_color(s->use_color))
  34                c = s->color_palette[slot];
  35        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  36                c = s->color_palette[WT_STATUS_HEADER];
  37        return c;
  38}
  39
  40static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  41                const char *fmt, va_list ap, const char *trail)
  42{
  43        struct strbuf sb = STRBUF_INIT;
  44        struct strbuf linebuf = STRBUF_INIT;
  45        const char *line, *eol;
  46
  47        strbuf_vaddf(&sb, fmt, ap);
  48        if (!sb.len) {
  49                strbuf_addch(&sb, comment_line_char);
  50                if (!trail)
  51                        strbuf_addch(&sb, ' ');
  52                color_print_strbuf(s->fp, color, &sb);
  53                if (trail)
  54                        fprintf(s->fp, "%s", trail);
  55                strbuf_release(&sb);
  56                return;
  57        }
  58        for (line = sb.buf; *line; line = eol + 1) {
  59                eol = strchr(line, '\n');
  60
  61                strbuf_reset(&linebuf);
  62                if (at_bol) {
  63                        strbuf_addch(&linebuf, comment_line_char);
  64                        if (*line != '\n' && *line != '\t')
  65                                strbuf_addch(&linebuf, ' ');
  66                }
  67                if (eol)
  68                        strbuf_add(&linebuf, line, eol - line);
  69                else
  70                        strbuf_addstr(&linebuf, line);
  71                color_print_strbuf(s->fp, color, &linebuf);
  72                if (eol)
  73                        fprintf(s->fp, "\n");
  74                else
  75                        break;
  76                at_bol = 1;
  77        }
  78        if (trail)
  79                fprintf(s->fp, "%s", trail);
  80        strbuf_release(&linebuf);
  81        strbuf_release(&sb);
  82}
  83
  84void status_printf_ln(struct wt_status *s, const char *color,
  85                        const char *fmt, ...)
  86{
  87        va_list ap;
  88
  89        va_start(ap, fmt);
  90        status_vprintf(s, 1, color, fmt, ap, "\n");
  91        va_end(ap);
  92}
  93
  94void status_printf(struct wt_status *s, const char *color,
  95                        const char *fmt, ...)
  96{
  97        va_list ap;
  98
  99        va_start(ap, fmt);
 100        status_vprintf(s, 1, color, fmt, ap, NULL);
 101        va_end(ap);
 102}
 103
 104static void status_printf_more(struct wt_status *s, const char *color,
 105                               const char *fmt, ...)
 106{
 107        va_list ap;
 108
 109        va_start(ap, fmt);
 110        status_vprintf(s, 0, color, fmt, ap, NULL);
 111        va_end(ap);
 112}
 113
 114void wt_status_prepare(struct wt_status *s)
 115{
 116        unsigned char sha1[20];
 117
 118        memset(s, 0, sizeof(*s));
 119        memcpy(s->color_palette, default_wt_status_colors,
 120               sizeof(default_wt_status_colors));
 121        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 122        s->use_color = -1;
 123        s->relative_paths = 1;
 124        s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 125        s->reference = "HEAD";
 126        s->fp = stdout;
 127        s->index_file = get_index_file();
 128        s->change.strdup_strings = 1;
 129        s->untracked.strdup_strings = 1;
 130        s->ignored.strdup_strings = 1;
 131        s->show_branch = -1;  /* unspecified */
 132}
 133
 134static void wt_status_print_unmerged_header(struct wt_status *s)
 135{
 136        int i;
 137        int del_mod_conflict = 0;
 138        int both_deleted = 0;
 139        int not_deleted = 0;
 140        const char *c = color(WT_STATUS_HEADER, s);
 141
 142        status_printf_ln(s, c, _("Unmerged paths:"));
 143
 144        for (i = 0; i < s->change.nr; i++) {
 145                struct string_list_item *it = &(s->change.items[i]);
 146                struct wt_status_change_data *d = it->util;
 147
 148                switch (d->stagemask) {
 149                case 0:
 150                        break;
 151                case 1:
 152                        both_deleted = 1;
 153                        break;
 154                case 3:
 155                case 5:
 156                        del_mod_conflict = 1;
 157                        break;
 158                default:
 159                        not_deleted = 1;
 160                        break;
 161                }
 162        }
 163
 164        if (!advice_status_hints)
 165                return;
 166        if (s->whence != FROM_COMMIT)
 167                ;
 168        else if (!s->is_initial)
 169                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 170        else
 171                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 172
 173        if (!both_deleted) {
 174                if (!del_mod_conflict)
 175                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 176                else
 177                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 178        } else if (!del_mod_conflict && !not_deleted) {
 179                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 180        } else {
 181                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 182        }
 183        status_printf_ln(s, c, "");
 184}
 185
 186static void wt_status_print_cached_header(struct wt_status *s)
 187{
 188        const char *c = color(WT_STATUS_HEADER, s);
 189
 190        status_printf_ln(s, c, _("Changes to be committed:"));
 191        if (!advice_status_hints)
 192                return;
 193        if (s->whence != FROM_COMMIT)
 194                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 195        else if (!s->is_initial)
 196                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 197        else
 198                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 199        status_printf_ln(s, c, "");
 200}
 201
 202static void wt_status_print_dirty_header(struct wt_status *s,
 203                                         int has_deleted,
 204                                         int has_dirty_submodules)
 205{
 206        const char *c = color(WT_STATUS_HEADER, s);
 207
 208        status_printf_ln(s, c, _("Changes not staged for commit:"));
 209        if (!advice_status_hints)
 210                return;
 211        if (!has_deleted)
 212                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 213        else
 214                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 215        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 216        if (has_dirty_submodules)
 217                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 218        status_printf_ln(s, c, "");
 219}
 220
 221static void wt_status_print_other_header(struct wt_status *s,
 222                                         const char *what,
 223                                         const char *how)
 224{
 225        const char *c = color(WT_STATUS_HEADER, s);
 226        status_printf_ln(s, c, "%s:", what);
 227        if (!advice_status_hints)
 228                return;
 229        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 230        status_printf_ln(s, c, "");
 231}
 232
 233static void wt_status_print_trailer(struct wt_status *s)
 234{
 235        status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 236}
 237
 238#define quote_path quote_path_relative
 239
 240static void wt_status_print_unmerged_data(struct wt_status *s,
 241                                          struct string_list_item *it)
 242{
 243        const char *c = color(WT_STATUS_UNMERGED, s);
 244        struct wt_status_change_data *d = it->util;
 245        struct strbuf onebuf = STRBUF_INIT;
 246        const char *one, *how = _("bug");
 247
 248        one = quote_path(it->string, -1, &onebuf, s->prefix);
 249        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 250        switch (d->stagemask) {
 251        case 1: how = _("both deleted:"); break;
 252        case 2: how = _("added by us:"); break;
 253        case 3: how = _("deleted by them:"); break;
 254        case 4: how = _("added by them:"); break;
 255        case 5: how = _("deleted by us:"); break;
 256        case 6: how = _("both added:"); break;
 257        case 7: how = _("both modified:"); break;
 258        }
 259        status_printf_more(s, c, "%-20s%s\n", how, one);
 260        strbuf_release(&onebuf);
 261}
 262
 263static void wt_status_print_change_data(struct wt_status *s,
 264                                        int change_type,
 265                                        struct string_list_item *it)
 266{
 267        struct wt_status_change_data *d = it->util;
 268        const char *c = color(change_type, s);
 269        int status;
 270        char *one_name;
 271        char *two_name;
 272        const char *one, *two;
 273        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 274        struct strbuf extra = STRBUF_INIT;
 275
 276        one_name = two_name = it->string;
 277        switch (change_type) {
 278        case WT_STATUS_UPDATED:
 279                status = d->index_status;
 280                if (d->head_path)
 281                        one_name = d->head_path;
 282                break;
 283        case WT_STATUS_CHANGED:
 284                if (d->new_submodule_commits || d->dirty_submodule) {
 285                        strbuf_addstr(&extra, " (");
 286                        if (d->new_submodule_commits)
 287                                strbuf_addf(&extra, _("new commits, "));
 288                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 289                                strbuf_addf(&extra, _("modified content, "));
 290                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 291                                strbuf_addf(&extra, _("untracked content, "));
 292                        strbuf_setlen(&extra, extra.len - 2);
 293                        strbuf_addch(&extra, ')');
 294                }
 295                status = d->worktree_status;
 296                break;
 297        default:
 298                die("BUG: unhandled change_type %d in wt_status_print_change_data",
 299                    change_type);
 300        }
 301
 302        one = quote_path(one_name, -1, &onebuf, s->prefix);
 303        two = quote_path(two_name, -1, &twobuf, s->prefix);
 304
 305        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 306        switch (status) {
 307        case DIFF_STATUS_ADDED:
 308                status_printf_more(s, c, _("new file:   %s"), one);
 309                break;
 310        case DIFF_STATUS_COPIED:
 311                status_printf_more(s, c, _("copied:     %s -> %s"), one, two);
 312                break;
 313        case DIFF_STATUS_DELETED:
 314                status_printf_more(s, c, _("deleted:    %s"), one);
 315                break;
 316        case DIFF_STATUS_MODIFIED:
 317                status_printf_more(s, c, _("modified:   %s"), one);
 318                break;
 319        case DIFF_STATUS_RENAMED:
 320                status_printf_more(s, c, _("renamed:    %s -> %s"), one, two);
 321                break;
 322        case DIFF_STATUS_TYPE_CHANGED:
 323                status_printf_more(s, c, _("typechange: %s"), one);
 324                break;
 325        case DIFF_STATUS_UNKNOWN:
 326                status_printf_more(s, c, _("unknown:    %s"), one);
 327                break;
 328        case DIFF_STATUS_UNMERGED:
 329                status_printf_more(s, c, _("unmerged:   %s"), one);
 330                break;
 331        default:
 332                die(_("bug: unhandled diff status %c"), status);
 333        }
 334        if (extra.len) {
 335                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 336                strbuf_release(&extra);
 337        }
 338        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 339        strbuf_release(&onebuf);
 340        strbuf_release(&twobuf);
 341}
 342
 343static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 344                                         struct diff_options *options,
 345                                         void *data)
 346{
 347        struct wt_status *s = data;
 348        int i;
 349
 350        if (!q->nr)
 351                return;
 352        s->workdir_dirty = 1;
 353        for (i = 0; i < q->nr; i++) {
 354                struct diff_filepair *p;
 355                struct string_list_item *it;
 356                struct wt_status_change_data *d;
 357
 358                p = q->queue[i];
 359                it = string_list_insert(&s->change, p->one->path);
 360                d = it->util;
 361                if (!d) {
 362                        d = xcalloc(1, sizeof(*d));
 363                        it->util = d;
 364                }
 365                if (!d->worktree_status)
 366                        d->worktree_status = p->status;
 367                d->dirty_submodule = p->two->dirty_submodule;
 368                if (S_ISGITLINK(p->two->mode))
 369                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 370        }
 371}
 372
 373static int unmerged_mask(const char *path)
 374{
 375        int pos, mask;
 376        struct cache_entry *ce;
 377
 378        pos = cache_name_pos(path, strlen(path));
 379        if (0 <= pos)
 380                return 0;
 381
 382        mask = 0;
 383        pos = -pos-1;
 384        while (pos < active_nr) {
 385                ce = active_cache[pos++];
 386                if (strcmp(ce->name, path) || !ce_stage(ce))
 387                        break;
 388                mask |= (1 << (ce_stage(ce) - 1));
 389        }
 390        return mask;
 391}
 392
 393static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 394                                         struct diff_options *options,
 395                                         void *data)
 396{
 397        struct wt_status *s = data;
 398        int i;
 399
 400        for (i = 0; i < q->nr; i++) {
 401                struct diff_filepair *p;
 402                struct string_list_item *it;
 403                struct wt_status_change_data *d;
 404
 405                p = q->queue[i];
 406                it = string_list_insert(&s->change, p->two->path);
 407                d = it->util;
 408                if (!d) {
 409                        d = xcalloc(1, sizeof(*d));
 410                        it->util = d;
 411                }
 412                if (!d->index_status)
 413                        d->index_status = p->status;
 414                switch (p->status) {
 415                case DIFF_STATUS_COPIED:
 416                case DIFF_STATUS_RENAMED:
 417                        d->head_path = xstrdup(p->one->path);
 418                        break;
 419                case DIFF_STATUS_UNMERGED:
 420                        d->stagemask = unmerged_mask(p->two->path);
 421                        break;
 422                }
 423        }
 424}
 425
 426static void wt_status_collect_changes_worktree(struct wt_status *s)
 427{
 428        struct rev_info rev;
 429
 430        init_revisions(&rev, NULL);
 431        setup_revisions(0, NULL, &rev, NULL);
 432        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 433        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 434        if (!s->show_untracked_files)
 435                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 436        if (s->ignore_submodule_arg) {
 437                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 438                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 439        }
 440        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 441        rev.diffopt.format_callback_data = s;
 442        copy_pathspec(&rev.prune_data, &s->pathspec);
 443        run_diff_files(&rev, 0);
 444}
 445
 446static void wt_status_collect_changes_index(struct wt_status *s)
 447{
 448        struct rev_info rev;
 449        struct setup_revision_opt opt;
 450
 451        init_revisions(&rev, NULL);
 452        memset(&opt, 0, sizeof(opt));
 453        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 454        setup_revisions(0, NULL, &rev, &opt);
 455
 456        if (s->ignore_submodule_arg) {
 457                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 458                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 459        }
 460
 461        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 462        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 463        rev.diffopt.format_callback_data = s;
 464        rev.diffopt.detect_rename = 1;
 465        rev.diffopt.rename_limit = 200;
 466        rev.diffopt.break_opt = 0;
 467        copy_pathspec(&rev.prune_data, &s->pathspec);
 468        run_diff_index(&rev, 1);
 469}
 470
 471static void wt_status_collect_changes_initial(struct wt_status *s)
 472{
 473        int i;
 474
 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, &s->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}
 496
 497static void wt_status_collect_untracked(struct wt_status *s)
 498{
 499        int i;
 500        struct dir_struct dir;
 501        struct timeval t_begin;
 502
 503        if (!s->show_untracked_files)
 504                return;
 505
 506        if (advice_status_u_option)
 507                gettimeofday(&t_begin, NULL);
 508
 509        memset(&dir, 0, sizeof(dir));
 510        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 511                dir.flags |=
 512                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 513        if (s->show_ignored_files)
 514                dir.flags |= DIR_SHOW_IGNORED_TOO;
 515        setup_standard_excludes(&dir);
 516
 517        fill_directory(&dir, &s->pathspec);
 518
 519        for (i = 0; i < dir.nr; i++) {
 520                struct dir_entry *ent = dir.entries[i];
 521                if (cache_name_is_other(ent->name, ent->len) &&
 522                    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 523                        string_list_insert(&s->untracked, ent->name);
 524                free(ent);
 525        }
 526
 527        for (i = 0; i < dir.ignored_nr; i++) {
 528                struct dir_entry *ent = dir.ignored[i];
 529                if (cache_name_is_other(ent->name, ent->len) &&
 530                    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 531                        string_list_insert(&s->ignored, ent->name);
 532                free(ent);
 533        }
 534
 535        free(dir.entries);
 536        free(dir.ignored);
 537        clear_directory(&dir);
 538
 539        if (advice_status_u_option) {
 540                struct timeval t_end;
 541                gettimeofday(&t_end, NULL);
 542                s->untracked_in_ms =
 543                        (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 544                        ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 545        }
 546}
 547
 548void wt_status_collect(struct wt_status *s)
 549{
 550        wt_status_collect_changes_worktree(s);
 551
 552        if (s->is_initial)
 553                wt_status_collect_changes_initial(s);
 554        else
 555                wt_status_collect_changes_index(s);
 556        wt_status_collect_untracked(s);
 557}
 558
 559static void wt_status_print_unmerged(struct wt_status *s)
 560{
 561        int shown_header = 0;
 562        int i;
 563
 564        for (i = 0; i < s->change.nr; i++) {
 565                struct wt_status_change_data *d;
 566                struct string_list_item *it;
 567                it = &(s->change.items[i]);
 568                d = it->util;
 569                if (!d->stagemask)
 570                        continue;
 571                if (!shown_header) {
 572                        wt_status_print_unmerged_header(s);
 573                        shown_header = 1;
 574                }
 575                wt_status_print_unmerged_data(s, it);
 576        }
 577        if (shown_header)
 578                wt_status_print_trailer(s);
 579
 580}
 581
 582static void wt_status_print_updated(struct wt_status *s)
 583{
 584        int shown_header = 0;
 585        int i;
 586
 587        for (i = 0; i < s->change.nr; i++) {
 588                struct wt_status_change_data *d;
 589                struct string_list_item *it;
 590                it = &(s->change.items[i]);
 591                d = it->util;
 592                if (!d->index_status ||
 593                    d->index_status == DIFF_STATUS_UNMERGED)
 594                        continue;
 595                if (!shown_header) {
 596                        wt_status_print_cached_header(s);
 597                        s->commitable = 1;
 598                        shown_header = 1;
 599                }
 600                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 601        }
 602        if (shown_header)
 603                wt_status_print_trailer(s);
 604}
 605
 606/*
 607 * -1 : has delete
 608 *  0 : no change
 609 *  1 : some change but no delete
 610 */
 611static int wt_status_check_worktree_changes(struct wt_status *s,
 612                                             int *dirty_submodules)
 613{
 614        int i;
 615        int changes = 0;
 616
 617        *dirty_submodules = 0;
 618
 619        for (i = 0; i < s->change.nr; i++) {
 620                struct wt_status_change_data *d;
 621                d = s->change.items[i].util;
 622                if (!d->worktree_status ||
 623                    d->worktree_status == DIFF_STATUS_UNMERGED)
 624                        continue;
 625                if (!changes)
 626                        changes = 1;
 627                if (d->dirty_submodule)
 628                        *dirty_submodules = 1;
 629                if (d->worktree_status == DIFF_STATUS_DELETED)
 630                        changes = -1;
 631        }
 632        return changes;
 633}
 634
 635static void wt_status_print_changed(struct wt_status *s)
 636{
 637        int i, dirty_submodules;
 638        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 639
 640        if (!worktree_changes)
 641                return;
 642
 643        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 644
 645        for (i = 0; i < s->change.nr; i++) {
 646                struct wt_status_change_data *d;
 647                struct string_list_item *it;
 648                it = &(s->change.items[i]);
 649                d = it->util;
 650                if (!d->worktree_status ||
 651                    d->worktree_status == DIFF_STATUS_UNMERGED)
 652                        continue;
 653                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 654        }
 655        wt_status_print_trailer(s);
 656}
 657
 658static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 659{
 660        struct child_process sm_summary;
 661        char summary_limit[64];
 662        char index[PATH_MAX];
 663        const char *env[] = { NULL, NULL };
 664        const char *argv[8];
 665
 666        env[0] =        index;
 667        argv[0] =       "submodule";
 668        argv[1] =       "summary";
 669        argv[2] =       uncommitted ? "--files" : "--cached";
 670        argv[3] =       "--for-status";
 671        argv[4] =       "--summary-limit";
 672        argv[5] =       summary_limit;
 673        argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 674        argv[7] =       NULL;
 675
 676        sprintf(summary_limit, "%d", s->submodule_summary);
 677        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 678
 679        memset(&sm_summary, 0, sizeof(sm_summary));
 680        sm_summary.argv = argv;
 681        sm_summary.env = env;
 682        sm_summary.git_cmd = 1;
 683        sm_summary.no_stdin = 1;
 684        fflush(s->fp);
 685        sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 686        run_command(&sm_summary);
 687}
 688
 689static void wt_status_print_other(struct wt_status *s,
 690                                  struct string_list *l,
 691                                  const char *what,
 692                                  const char *how)
 693{
 694        int i;
 695        struct strbuf buf = STRBUF_INIT;
 696        static struct string_list output = STRING_LIST_INIT_DUP;
 697        struct column_options copts;
 698
 699        if (!l->nr)
 700                return;
 701
 702        wt_status_print_other_header(s, what, how);
 703
 704        for (i = 0; i < l->nr; i++) {
 705                struct string_list_item *it;
 706                const char *path;
 707                it = &(l->items[i]);
 708                path = quote_path(it->string, strlen(it->string),
 709                                  &buf, s->prefix);
 710                if (column_active(s->colopts)) {
 711                        string_list_append(&output, path);
 712                        continue;
 713                }
 714                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 715                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 716                                   "%s\n", path);
 717        }
 718
 719        strbuf_release(&buf);
 720        if (!column_active(s->colopts))
 721                return;
 722
 723        strbuf_addf(&buf, "%s#\t%s",
 724                    color(WT_STATUS_HEADER, s),
 725                    color(WT_STATUS_UNTRACKED, s));
 726        memset(&copts, 0, sizeof(copts));
 727        copts.padding = 1;
 728        copts.indent = buf.buf;
 729        if (want_color(s->use_color))
 730                copts.nl = GIT_COLOR_RESET "\n";
 731        print_columns(&output, s->colopts, &copts);
 732        string_list_clear(&output, 0);
 733        strbuf_release(&buf);
 734}
 735
 736static void wt_status_print_verbose(struct wt_status *s)
 737{
 738        struct rev_info rev;
 739        struct setup_revision_opt opt;
 740
 741        init_revisions(&rev, NULL);
 742        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 743
 744        memset(&opt, 0, sizeof(opt));
 745        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 746        setup_revisions(0, NULL, &rev, &opt);
 747
 748        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 749        rev.diffopt.detect_rename = 1;
 750        rev.diffopt.file = s->fp;
 751        rev.diffopt.close_file = 0;
 752        /*
 753         * If we're not going to stdout, then we definitely don't
 754         * want color, since we are going to the commit message
 755         * file (and even the "auto" setting won't work, since it
 756         * will have checked isatty on stdout).
 757         */
 758        if (s->fp != stdout)
 759                rev.diffopt.use_color = 0;
 760        run_diff_index(&rev, 1);
 761}
 762
 763static void wt_status_print_tracking(struct wt_status *s)
 764{
 765        struct strbuf sb = STRBUF_INIT;
 766        const char *cp, *ep;
 767        struct branch *branch;
 768
 769        assert(s->branch && !s->is_initial);
 770        if (prefixcmp(s->branch, "refs/heads/"))
 771                return;
 772        branch = branch_get(s->branch + 11);
 773        if (!format_tracking_info(branch, &sb))
 774                return;
 775
 776        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 777                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 778                                 "%c %.*s", comment_line_char,
 779                                 (int)(ep - cp), cp);
 780        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 781                         comment_line_char);
 782}
 783
 784static int has_unmerged(struct wt_status *s)
 785{
 786        int i;
 787
 788        for (i = 0; i < s->change.nr; i++) {
 789                struct wt_status_change_data *d;
 790                d = s->change.items[i].util;
 791                if (d->stagemask)
 792                        return 1;
 793        }
 794        return 0;
 795}
 796
 797static void show_merge_in_progress(struct wt_status *s,
 798                                struct wt_status_state *state,
 799                                const char *color)
 800{
 801        if (has_unmerged(s)) {
 802                status_printf_ln(s, color, _("You have unmerged paths."));
 803                if (advice_status_hints)
 804                        status_printf_ln(s, color,
 805                                _("  (fix conflicts and run \"git commit\")"));
 806        } else {
 807                status_printf_ln(s, color,
 808                        _("All conflicts fixed but you are still merging."));
 809                if (advice_status_hints)
 810                        status_printf_ln(s, color,
 811                                _("  (use \"git commit\" to conclude merge)"));
 812        }
 813        wt_status_print_trailer(s);
 814}
 815
 816static void show_am_in_progress(struct wt_status *s,
 817                                struct wt_status_state *state,
 818                                const char *color)
 819{
 820        status_printf_ln(s, color,
 821                _("You are in the middle of an am session."));
 822        if (state->am_empty_patch)
 823                status_printf_ln(s, color,
 824                        _("The current patch is empty."));
 825        if (advice_status_hints) {
 826                if (!state->am_empty_patch)
 827                        status_printf_ln(s, color,
 828                                _("  (fix conflicts and then run \"git am --continue\")"));
 829                status_printf_ln(s, color,
 830                        _("  (use \"git am --skip\" to skip this patch)"));
 831                status_printf_ln(s, color,
 832                        _("  (use \"git am --abort\" to restore the original branch)"));
 833        }
 834        wt_status_print_trailer(s);
 835}
 836
 837static char *read_line_from_git_path(const char *filename)
 838{
 839        struct strbuf buf = STRBUF_INIT;
 840        FILE *fp = fopen(git_path("%s", filename), "r");
 841        if (!fp) {
 842                strbuf_release(&buf);
 843                return NULL;
 844        }
 845        strbuf_getline(&buf, fp, '\n');
 846        if (!fclose(fp)) {
 847                return strbuf_detach(&buf, NULL);
 848        } else {
 849                strbuf_release(&buf);
 850                return NULL;
 851        }
 852}
 853
 854static int split_commit_in_progress(struct wt_status *s)
 855{
 856        int split_in_progress = 0;
 857        char *head = read_line_from_git_path("HEAD");
 858        char *orig_head = read_line_from_git_path("ORIG_HEAD");
 859        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 860        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 861
 862        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 863            !s->branch || strcmp(s->branch, "HEAD"))
 864                return split_in_progress;
 865
 866        if (!strcmp(rebase_amend, rebase_orig_head)) {
 867                if (strcmp(head, rebase_amend))
 868                        split_in_progress = 1;
 869        } else if (strcmp(orig_head, rebase_orig_head)) {
 870                split_in_progress = 1;
 871        }
 872
 873        if (!s->amend && !s->nowarn && !s->workdir_dirty)
 874                split_in_progress = 0;
 875
 876        free(head);
 877        free(orig_head);
 878        free(rebase_amend);
 879        free(rebase_orig_head);
 880        return split_in_progress;
 881}
 882
 883static void show_rebase_in_progress(struct wt_status *s,
 884                                struct wt_status_state *state,
 885                                const char *color)
 886{
 887        struct stat st;
 888
 889        if (has_unmerged(s)) {
 890                if (state->branch)
 891                        status_printf_ln(s, color,
 892                                         _("You are currently rebasing branch '%s' on '%s'."),
 893                                         state->branch,
 894                                         state->onto);
 895                else
 896                        status_printf_ln(s, color,
 897                                         _("You are currently rebasing."));
 898                if (advice_status_hints) {
 899                        status_printf_ln(s, color,
 900                                _("  (fix conflicts and then run \"git rebase --continue\")"));
 901                        status_printf_ln(s, color,
 902                                _("  (use \"git rebase --skip\" to skip this patch)"));
 903                        status_printf_ln(s, color,
 904                                _("  (use \"git rebase --abort\" to check out the original branch)"));
 905                }
 906        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
 907                if (state->branch)
 908                        status_printf_ln(s, color,
 909                                         _("You are currently rebasing branch '%s' on '%s'."),
 910                                         state->branch,
 911                                         state->onto);
 912                else
 913                        status_printf_ln(s, color,
 914                                         _("You are currently rebasing."));
 915                if (advice_status_hints)
 916                        status_printf_ln(s, color,
 917                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
 918        } else if (split_commit_in_progress(s)) {
 919                if (state->branch)
 920                        status_printf_ln(s, color,
 921                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
 922                                         state->branch,
 923                                         state->onto);
 924                else
 925                        status_printf_ln(s, color,
 926                                         _("You are currently splitting a commit during a rebase."));
 927                if (advice_status_hints)
 928                        status_printf_ln(s, color,
 929                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
 930        } else {
 931                if (state->branch)
 932                        status_printf_ln(s, color,
 933                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
 934                                         state->branch,
 935                                         state->onto);
 936                else
 937                        status_printf_ln(s, color,
 938                                         _("You are currently editing a commit during a rebase."));
 939                if (advice_status_hints && !s->amend) {
 940                        status_printf_ln(s, color,
 941                                _("  (use \"git commit --amend\" to amend the current commit)"));
 942                        status_printf_ln(s, color,
 943                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
 944                }
 945        }
 946        wt_status_print_trailer(s);
 947}
 948
 949static void show_cherry_pick_in_progress(struct wt_status *s,
 950                                        struct wt_status_state *state,
 951                                        const char *color)
 952{
 953        status_printf_ln(s, color, _("You are currently cherry-picking."));
 954        if (advice_status_hints) {
 955                if (has_unmerged(s))
 956                        status_printf_ln(s, color,
 957                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
 958                else
 959                        status_printf_ln(s, color,
 960                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
 961                status_printf_ln(s, color,
 962                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
 963        }
 964        wt_status_print_trailer(s);
 965}
 966
 967static void show_revert_in_progress(struct wt_status *s,
 968                                        struct wt_status_state *state,
 969                                        const char *color)
 970{
 971        status_printf_ln(s, color, _("You are currently reverting commit %s."),
 972                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
 973        if (advice_status_hints) {
 974                if (has_unmerged(s))
 975                        status_printf_ln(s, color,
 976                                _("  (fix conflicts and run \"git revert --continue\")"));
 977                else
 978                        status_printf_ln(s, color,
 979                                _("  (all conflicts fixed: run \"git revert --continue\")"));
 980                status_printf_ln(s, color,
 981                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
 982        }
 983        wt_status_print_trailer(s);
 984}
 985
 986static void show_bisect_in_progress(struct wt_status *s,
 987                                struct wt_status_state *state,
 988                                const char *color)
 989{
 990        if (state->branch)
 991                status_printf_ln(s, color,
 992                                 _("You are currently bisecting, started from branch '%s'."),
 993                                 state->branch);
 994        else
 995                status_printf_ln(s, color,
 996                                 _("You are currently bisecting."));
 997        if (advice_status_hints)
 998                status_printf_ln(s, color,
 999                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1000        wt_status_print_trailer(s);
1001}
1002
1003/*
1004 * Extract branch information from rebase/bisect
1005 */
1006static char *read_and_strip_branch(const char *path)
1007{
1008        struct strbuf sb = STRBUF_INIT;
1009        unsigned char sha1[20];
1010
1011        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1012                goto got_nothing;
1013
1014        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1015                strbuf_setlen(&sb, sb.len - 1);
1016        if (!sb.len)
1017                goto got_nothing;
1018        if (!prefixcmp(sb.buf, "refs/heads/"))
1019                strbuf_remove(&sb,0, strlen("refs/heads/"));
1020        else if (!prefixcmp(sb.buf, "refs/"))
1021                ;
1022        else if (!get_sha1_hex(sb.buf, sha1)) {
1023                const char *abbrev;
1024                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1025                strbuf_reset(&sb);
1026                strbuf_addstr(&sb, abbrev);
1027        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1028                goto got_nothing;
1029        else                    /* bisect */
1030                ;
1031        return strbuf_detach(&sb, NULL);
1032
1033got_nothing:
1034        strbuf_release(&sb);
1035        return NULL;
1036}
1037
1038struct grab_1st_switch_cbdata {
1039        struct strbuf buf;
1040        unsigned char nsha1[20];
1041};
1042
1043static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1044                           const char *email, unsigned long timestamp, int tz,
1045                           const char *message, void *cb_data)
1046{
1047        struct grab_1st_switch_cbdata *cb = cb_data;
1048        const char *target = NULL, *end;
1049
1050        if (prefixcmp(message, "checkout: moving from "))
1051                return 0;
1052        message += strlen("checkout: moving from ");
1053        target = strstr(message, " to ");
1054        if (!target)
1055                return 0;
1056        target += strlen(" to ");
1057        strbuf_reset(&cb->buf);
1058        hashcpy(cb->nsha1, nsha1);
1059        for (end = target; *end && *end != '\n'; end++)
1060                ;
1061        strbuf_add(&cb->buf, target, end - target);
1062        return 1;
1063}
1064
1065static void wt_status_get_detached_from(struct wt_status_state *state)
1066{
1067        struct grab_1st_switch_cbdata cb;
1068        struct commit *commit;
1069        unsigned char sha1[20];
1070        char *ref = NULL;
1071
1072        strbuf_init(&cb.buf, 0);
1073        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1074                strbuf_release(&cb.buf);
1075                return;
1076        }
1077
1078        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1079            /* sha1 is a commit? match without further lookup */
1080            (!hashcmp(cb.nsha1, sha1) ||
1081             /* perhaps sha1 is a tag, try to dereference to a commit */
1082             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1083              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1084                int ofs;
1085                if (!prefixcmp(ref, "refs/tags/"))
1086                        ofs = strlen("refs/tags/");
1087                else if (!prefixcmp(ref, "refs/remotes/"))
1088                        ofs = strlen("refs/remotes/");
1089                else
1090                        ofs = 0;
1091                state->detached_from = xstrdup(ref + ofs);
1092        } else
1093                state->detached_from =
1094                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1095        hashcpy(state->detached_sha1, cb.nsha1);
1096
1097        free(ref);
1098        strbuf_release(&cb.buf);
1099}
1100
1101void wt_status_get_state(struct wt_status_state *state,
1102                         int get_detached_from)
1103{
1104        struct stat st;
1105        unsigned char sha1[20];
1106
1107        if (!stat(git_path("MERGE_HEAD"), &st)) {
1108                state->merge_in_progress = 1;
1109        } else if (!stat(git_path("rebase-apply"), &st)) {
1110                if (!stat(git_path("rebase-apply/applying"), &st)) {
1111                        state->am_in_progress = 1;
1112                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1113                                state->am_empty_patch = 1;
1114                } else {
1115                        state->rebase_in_progress = 1;
1116                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1117                        state->onto = read_and_strip_branch("rebase-apply/onto");
1118                }
1119        } else if (!stat(git_path("rebase-merge"), &st)) {
1120                if (!stat(git_path("rebase-merge/interactive"), &st))
1121                        state->rebase_interactive_in_progress = 1;
1122                else
1123                        state->rebase_in_progress = 1;
1124                state->branch = read_and_strip_branch("rebase-merge/head-name");
1125                state->onto = read_and_strip_branch("rebase-merge/onto");
1126        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st)) {
1127                state->cherry_pick_in_progress = 1;
1128        }
1129        if (!stat(git_path("BISECT_LOG"), &st)) {
1130                state->bisect_in_progress = 1;
1131                state->branch = read_and_strip_branch("BISECT_START");
1132        }
1133        if (!stat(git_path("REVERT_HEAD"), &st) &&
1134            !get_sha1("REVERT_HEAD", sha1)) {
1135                state->revert_in_progress = 1;
1136                hashcpy(state->revert_head_sha1, sha1);
1137        }
1138
1139        if (get_detached_from)
1140                wt_status_get_detached_from(state);
1141}
1142
1143static void wt_status_print_state(struct wt_status *s,
1144                                  struct wt_status_state *state)
1145{
1146        const char *state_color = color(WT_STATUS_HEADER, s);
1147        if (state->merge_in_progress)
1148                show_merge_in_progress(s, state, state_color);
1149        else if (state->am_in_progress)
1150                show_am_in_progress(s, state, state_color);
1151        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1152                show_rebase_in_progress(s, state, state_color);
1153        else if (state->cherry_pick_in_progress)
1154                show_cherry_pick_in_progress(s, state, state_color);
1155        else if (state->revert_in_progress)
1156                show_revert_in_progress(s, state, state_color);
1157        if (state->bisect_in_progress)
1158                show_bisect_in_progress(s, state, state_color);
1159}
1160
1161void wt_status_print(struct wt_status *s)
1162{
1163        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1164        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1165        struct wt_status_state state;
1166
1167        memset(&state, 0, sizeof(state));
1168        wt_status_get_state(&state,
1169                            s->branch && !strcmp(s->branch, "HEAD"));
1170
1171        if (s->branch) {
1172                const char *on_what = _("On branch ");
1173                const char *branch_name = s->branch;
1174                if (!prefixcmp(branch_name, "refs/heads/"))
1175                        branch_name += 11;
1176                else if (!strcmp(branch_name, "HEAD")) {
1177                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1178                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1179                                on_what = _("rebase in progress; onto ");
1180                                branch_name = state.onto;
1181                        } else if (state.detached_from) {
1182                                unsigned char sha1[20];
1183                                branch_name = state.detached_from;
1184                                if (!get_sha1("HEAD", sha1) &&
1185                                    !hashcmp(sha1, state.detached_sha1))
1186                                        on_what = _("HEAD detached at ");
1187                                else
1188                                        on_what = _("HEAD detached from ");
1189                        } else {
1190                                branch_name = "";
1191                                on_what = _("Not currently on any branch.");
1192                        }
1193                }
1194                status_printf(s, color(WT_STATUS_HEADER, s), "");
1195                status_printf_more(s, branch_status_color, "%s", on_what);
1196                status_printf_more(s, branch_color, "%s\n", branch_name);
1197                if (!s->is_initial)
1198                        wt_status_print_tracking(s);
1199        }
1200
1201        wt_status_print_state(s, &state);
1202        free(state.branch);
1203        free(state.onto);
1204        free(state.detached_from);
1205
1206        if (s->is_initial) {
1207                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1208                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1209                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1210        }
1211
1212        wt_status_print_updated(s);
1213        wt_status_print_unmerged(s);
1214        wt_status_print_changed(s);
1215        if (s->submodule_summary &&
1216            (!s->ignore_submodule_arg ||
1217             strcmp(s->ignore_submodule_arg, "all"))) {
1218                wt_status_print_submodule_summary(s, 0);  /* staged */
1219                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1220        }
1221        if (s->show_untracked_files) {
1222                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1223                if (s->show_ignored_files)
1224                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1225                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1226                        status_printf_ln(s, GIT_COLOR_NORMAL, "");
1227                        status_printf_ln(s, GIT_COLOR_NORMAL,
1228                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1229                                           "may speed it up, but you have to be careful not to forget to add\n"
1230                                           "new files yourself (see 'git help status')."),
1231                                         s->untracked_in_ms / 1000.0);
1232                }
1233        } else if (s->commitable)
1234                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1235                        advice_status_hints
1236                        ? _(" (use -u option to show untracked files)") : "");
1237
1238        if (s->verbose)
1239                wt_status_print_verbose(s);
1240        if (!s->commitable) {
1241                if (s->amend)
1242                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1243                else if (s->nowarn)
1244                        ; /* nothing */
1245                else if (s->workdir_dirty) {
1246                        if (advice_status_hints)
1247                                printf(_("no changes added to commit "
1248                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1249                        else
1250                                printf(_("no changes added to commit\n"));
1251                } else if (s->untracked.nr) {
1252                        if (advice_status_hints)
1253                                printf(_("nothing added to commit but untracked files "
1254                                         "present (use \"git add\" to track)\n"));
1255                        else
1256                                printf(_("nothing added to commit but untracked files present\n"));
1257                } else if (s->is_initial) {
1258                        if (advice_status_hints)
1259                                printf(_("nothing to commit (create/copy files "
1260                                         "and use \"git add\" to track)\n"));
1261                        else
1262                                printf(_("nothing to commit\n"));
1263                } else if (!s->show_untracked_files) {
1264                        if (advice_status_hints)
1265                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1266                        else
1267                                printf(_("nothing to commit\n"));
1268                } else
1269                        printf(_("nothing to commit, working directory clean\n"));
1270        }
1271}
1272
1273static void wt_shortstatus_unmerged(struct string_list_item *it,
1274                           struct wt_status *s)
1275{
1276        struct wt_status_change_data *d = it->util;
1277        const char *how = "??";
1278
1279        switch (d->stagemask) {
1280        case 1: how = "DD"; break; /* both deleted */
1281        case 2: how = "AU"; break; /* added by us */
1282        case 3: how = "UD"; break; /* deleted by them */
1283        case 4: how = "UA"; break; /* added by them */
1284        case 5: how = "DU"; break; /* deleted by us */
1285        case 6: how = "AA"; break; /* both added */
1286        case 7: how = "UU"; break; /* both modified */
1287        }
1288        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1289        if (s->null_termination) {
1290                fprintf(stdout, " %s%c", it->string, 0);
1291        } else {
1292                struct strbuf onebuf = STRBUF_INIT;
1293                const char *one;
1294                one = quote_path(it->string, -1, &onebuf, s->prefix);
1295                printf(" %s\n", one);
1296                strbuf_release(&onebuf);
1297        }
1298}
1299
1300static void wt_shortstatus_status(struct string_list_item *it,
1301                         struct wt_status *s)
1302{
1303        struct wt_status_change_data *d = it->util;
1304
1305        if (d->index_status)
1306                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1307        else
1308                putchar(' ');
1309        if (d->worktree_status)
1310                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1311        else
1312                putchar(' ');
1313        putchar(' ');
1314        if (s->null_termination) {
1315                fprintf(stdout, "%s%c", it->string, 0);
1316                if (d->head_path)
1317                        fprintf(stdout, "%s%c", d->head_path, 0);
1318        } else {
1319                struct strbuf onebuf = STRBUF_INIT;
1320                const char *one;
1321                if (d->head_path) {
1322                        one = quote_path(d->head_path, -1, &onebuf, s->prefix);
1323                        if (*one != '"' && strchr(one, ' ') != NULL) {
1324                                putchar('"');
1325                                strbuf_addch(&onebuf, '"');
1326                                one = onebuf.buf;
1327                        }
1328                        printf("%s -> ", one);
1329                        strbuf_release(&onebuf);
1330                }
1331                one = quote_path(it->string, -1, &onebuf, s->prefix);
1332                if (*one != '"' && strchr(one, ' ') != NULL) {
1333                        putchar('"');
1334                        strbuf_addch(&onebuf, '"');
1335                        one = onebuf.buf;
1336                }
1337                printf("%s\n", one);
1338                strbuf_release(&onebuf);
1339        }
1340}
1341
1342static void wt_shortstatus_other(struct string_list_item *it,
1343                                 struct wt_status *s, const char *sign)
1344{
1345        if (s->null_termination) {
1346                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1347        } else {
1348                struct strbuf onebuf = STRBUF_INIT;
1349                const char *one;
1350                one = quote_path(it->string, -1, &onebuf, s->prefix);
1351                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1352                printf(" %s\n", one);
1353                strbuf_release(&onebuf);
1354        }
1355}
1356
1357static void wt_shortstatus_print_tracking(struct wt_status *s)
1358{
1359        struct branch *branch;
1360        const char *header_color = color(WT_STATUS_HEADER, s);
1361        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1362        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1363
1364        const char *base;
1365        const char *branch_name;
1366        int num_ours, num_theirs;
1367
1368        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1369
1370        if (!s->branch)
1371                return;
1372        branch_name = s->branch;
1373
1374        if (!prefixcmp(branch_name, "refs/heads/"))
1375                branch_name += 11;
1376        else if (!strcmp(branch_name, "HEAD")) {
1377                branch_name = _("HEAD (no branch)");
1378                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1379        }
1380
1381        branch = branch_get(s->branch + 11);
1382        if (s->is_initial)
1383                color_fprintf(s->fp, header_color, _("Initial commit on "));
1384        if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
1385                color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1386                fputc(s->null_termination ? '\0' : '\n', s->fp);
1387                return;
1388        }
1389
1390        base = branch->merge[0]->dst;
1391        base = shorten_unambiguous_ref(base, 0);
1392        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1393        color_fprintf(s->fp, header_color, "...");
1394        color_fprintf(s->fp, branch_color_remote, "%s", base);
1395
1396        color_fprintf(s->fp, header_color, " [");
1397        if (!num_ours) {
1398                color_fprintf(s->fp, header_color, _("behind "));
1399                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1400        } else if (!num_theirs) {
1401                color_fprintf(s->fp, header_color, _("ahead "));
1402                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1403        } else {
1404                color_fprintf(s->fp, header_color, _("ahead "));
1405                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1406                color_fprintf(s->fp, header_color, _(", behind "));
1407                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1408        }
1409
1410        color_fprintf(s->fp, header_color, "]");
1411        fputc(s->null_termination ? '\0' : '\n', s->fp);
1412}
1413
1414void wt_shortstatus_print(struct wt_status *s)
1415{
1416        int i;
1417
1418        if (s->show_branch)
1419                wt_shortstatus_print_tracking(s);
1420
1421        for (i = 0; i < s->change.nr; i++) {
1422                struct wt_status_change_data *d;
1423                struct string_list_item *it;
1424
1425                it = &(s->change.items[i]);
1426                d = it->util;
1427                if (d->stagemask)
1428                        wt_shortstatus_unmerged(it, s);
1429                else
1430                        wt_shortstatus_status(it, s);
1431        }
1432        for (i = 0; i < s->untracked.nr; i++) {
1433                struct string_list_item *it;
1434
1435                it = &(s->untracked.items[i]);
1436                wt_shortstatus_other(it, s, "??");
1437        }
1438        for (i = 0; i < s->ignored.nr; i++) {
1439                struct string_list_item *it;
1440
1441                it = &(s->ignored.items[i]);
1442                wt_shortstatus_other(it, s, "!!");
1443        }
1444}
1445
1446void wt_porcelain_print(struct wt_status *s)
1447{
1448        s->use_color = 0;
1449        s->relative_paths = 0;
1450        s->prefix = NULL;
1451        wt_shortstatus_print(s);
1452}