ed5db49502d9103a61f0ba0ba499d1d00c302a07
   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 "argv-array.h"
  13#include "remote.h"
  14#include "refs.h"
  15#include "submodule.h"
  16#include "column.h"
  17#include "strbuf.h"
  18#include "utf8.h"
  19
  20static const char cut_line[] =
  21"------------------------ >8 ------------------------\n";
  22
  23static char default_wt_status_colors[][COLOR_MAXLEN] = {
  24        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  25        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  26        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  27        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  28        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  29        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  30        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  31        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  32        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  33};
  34
  35static const char *color(int slot, struct wt_status *s)
  36{
  37        const char *c = "";
  38        if (want_color(s->use_color))
  39                c = s->color_palette[slot];
  40        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  41                c = s->color_palette[WT_STATUS_HEADER];
  42        return c;
  43}
  44
  45static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  46                const char *fmt, va_list ap, const char *trail)
  47{
  48        struct strbuf sb = STRBUF_INIT;
  49        struct strbuf linebuf = STRBUF_INIT;
  50        const char *line, *eol;
  51
  52        strbuf_vaddf(&sb, fmt, ap);
  53        if (!sb.len) {
  54                if (s->display_comment_prefix) {
  55                        strbuf_addch(&sb, comment_line_char);
  56                        if (!trail)
  57                                strbuf_addch(&sb, ' ');
  58                }
  59                color_print_strbuf(s->fp, color, &sb);
  60                if (trail)
  61                        fprintf(s->fp, "%s", trail);
  62                strbuf_release(&sb);
  63                return;
  64        }
  65        for (line = sb.buf; *line; line = eol + 1) {
  66                eol = strchr(line, '\n');
  67
  68                strbuf_reset(&linebuf);
  69                if (at_bol && s->display_comment_prefix) {
  70                        strbuf_addch(&linebuf, comment_line_char);
  71                        if (*line != '\n' && *line != '\t')
  72                                strbuf_addch(&linebuf, ' ');
  73                }
  74                if (eol)
  75                        strbuf_add(&linebuf, line, eol - line);
  76                else
  77                        strbuf_addstr(&linebuf, line);
  78                color_print_strbuf(s->fp, color, &linebuf);
  79                if (eol)
  80                        fprintf(s->fp, "\n");
  81                else
  82                        break;
  83                at_bol = 1;
  84        }
  85        if (trail)
  86                fprintf(s->fp, "%s", trail);
  87        strbuf_release(&linebuf);
  88        strbuf_release(&sb);
  89}
  90
  91void status_printf_ln(struct wt_status *s, const char *color,
  92                        const char *fmt, ...)
  93{
  94        va_list ap;
  95
  96        va_start(ap, fmt);
  97        status_vprintf(s, 1, color, fmt, ap, "\n");
  98        va_end(ap);
  99}
 100
 101void status_printf(struct wt_status *s, const char *color,
 102                        const char *fmt, ...)
 103{
 104        va_list ap;
 105
 106        va_start(ap, fmt);
 107        status_vprintf(s, 1, color, fmt, ap, NULL);
 108        va_end(ap);
 109}
 110
 111static void status_printf_more(struct wt_status *s, const char *color,
 112                               const char *fmt, ...)
 113{
 114        va_list ap;
 115
 116        va_start(ap, fmt);
 117        status_vprintf(s, 0, color, fmt, ap, NULL);
 118        va_end(ap);
 119}
 120
 121void wt_status_prepare(struct wt_status *s)
 122{
 123        unsigned char sha1[20];
 124
 125        memset(s, 0, sizeof(*s));
 126        memcpy(s->color_palette, default_wt_status_colors,
 127               sizeof(default_wt_status_colors));
 128        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 129        s->use_color = -1;
 130        s->relative_paths = 1;
 131        s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 132        s->reference = "HEAD";
 133        s->fp = stdout;
 134        s->index_file = get_index_file();
 135        s->change.strdup_strings = 1;
 136        s->untracked.strdup_strings = 1;
 137        s->ignored.strdup_strings = 1;
 138        s->show_branch = -1;  /* unspecified */
 139        s->display_comment_prefix = 0;
 140}
 141
 142static void wt_status_print_unmerged_header(struct wt_status *s)
 143{
 144        int i;
 145        int del_mod_conflict = 0;
 146        int both_deleted = 0;
 147        int not_deleted = 0;
 148        const char *c = color(WT_STATUS_HEADER, s);
 149
 150        status_printf_ln(s, c, _("Unmerged paths:"));
 151
 152        for (i = 0; i < s->change.nr; i++) {
 153                struct string_list_item *it = &(s->change.items[i]);
 154                struct wt_status_change_data *d = it->util;
 155
 156                switch (d->stagemask) {
 157                case 0:
 158                        break;
 159                case 1:
 160                        both_deleted = 1;
 161                        break;
 162                case 3:
 163                case 5:
 164                        del_mod_conflict = 1;
 165                        break;
 166                default:
 167                        not_deleted = 1;
 168                        break;
 169                }
 170        }
 171
 172        if (!s->hints)
 173                return;
 174        if (s->whence != FROM_COMMIT)
 175                ;
 176        else if (!s->is_initial)
 177                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 178        else
 179                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 180
 181        if (!both_deleted) {
 182                if (!del_mod_conflict)
 183                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 184                else
 185                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 186        } else if (!del_mod_conflict && !not_deleted) {
 187                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 188        } else {
 189                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 190        }
 191        status_printf_ln(s, c, "");
 192}
 193
 194static void wt_status_print_cached_header(struct wt_status *s)
 195{
 196        const char *c = color(WT_STATUS_HEADER, s);
 197
 198        status_printf_ln(s, c, _("Changes to be committed:"));
 199        if (!s->hints)
 200                return;
 201        if (s->whence != FROM_COMMIT)
 202                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 203        else if (!s->is_initial)
 204                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 205        else
 206                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 207        status_printf_ln(s, c, "");
 208}
 209
 210static void wt_status_print_dirty_header(struct wt_status *s,
 211                                         int has_deleted,
 212                                         int has_dirty_submodules)
 213{
 214        const char *c = color(WT_STATUS_HEADER, s);
 215
 216        status_printf_ln(s, c, _("Changes not staged for commit:"));
 217        if (!s->hints)
 218                return;
 219        if (!has_deleted)
 220                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 221        else
 222                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 223        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 224        if (has_dirty_submodules)
 225                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 226        status_printf_ln(s, c, "");
 227}
 228
 229static void wt_status_print_other_header(struct wt_status *s,
 230                                         const char *what,
 231                                         const char *how)
 232{
 233        const char *c = color(WT_STATUS_HEADER, s);
 234        status_printf_ln(s, c, "%s:", what);
 235        if (!s->hints)
 236                return;
 237        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 238        status_printf_ln(s, c, "");
 239}
 240
 241static void wt_status_print_trailer(struct wt_status *s)
 242{
 243        status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 244}
 245
 246#define quote_path quote_path_relative
 247
 248static const char *wt_status_unmerged_status_string(int stagemask)
 249{
 250        switch (stagemask) {
 251        case 1:
 252                return _("both deleted:");
 253        case 2:
 254                return _("added by us:");
 255        case 3:
 256                return _("deleted by them:");
 257        case 4:
 258                return _("added by them:");
 259        case 5:
 260                return _("deleted by us:");
 261        case 6:
 262                return _("both added:");
 263        case 7:
 264                return _("both modified:");
 265        default:
 266                die(_("bug: unhandled unmerged status %x"), stagemask);
 267        }
 268}
 269
 270static const char *wt_status_diff_status_string(int status)
 271{
 272        switch (status) {
 273        case DIFF_STATUS_ADDED:
 274                return _("new file:");
 275        case DIFF_STATUS_COPIED:
 276                return _("copied:");
 277        case DIFF_STATUS_DELETED:
 278                return _("deleted:");
 279        case DIFF_STATUS_MODIFIED:
 280                return _("modified:");
 281        case DIFF_STATUS_RENAMED:
 282                return _("renamed:");
 283        case DIFF_STATUS_TYPE_CHANGED:
 284                return _("typechange:");
 285        case DIFF_STATUS_UNKNOWN:
 286                return _("unknown:");
 287        case DIFF_STATUS_UNMERGED:
 288                return _("unmerged:");
 289        default:
 290                return NULL;
 291        }
 292}
 293
 294static int maxwidth(const char *(*label)(int), int minval, int maxval)
 295{
 296        int result = 0, i;
 297
 298        for (i = minval; i <= maxval; i++) {
 299                const char *s = label(i);
 300                int len = s ? utf8_strwidth(s) : 0;
 301                if (len > result)
 302                        result = len;
 303        }
 304        return result;
 305}
 306
 307static void wt_status_print_unmerged_data(struct wt_status *s,
 308                                          struct string_list_item *it)
 309{
 310        const char *c = color(WT_STATUS_UNMERGED, s);
 311        struct wt_status_change_data *d = it->util;
 312        struct strbuf onebuf = STRBUF_INIT;
 313        static char *padding;
 314        static int label_width;
 315        const char *one, *how;
 316        int len;
 317
 318        if (!padding) {
 319                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 320                label_width += strlen(" ");
 321                padding = xmallocz(label_width);
 322                memset(padding, ' ', label_width);
 323        }
 324
 325        one = quote_path(it->string, s->prefix, &onebuf);
 326        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 327
 328        how = wt_status_unmerged_status_string(d->stagemask);
 329        len = label_width - utf8_strwidth(how);
 330        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 331        strbuf_release(&onebuf);
 332}
 333
 334static void wt_status_print_change_data(struct wt_status *s,
 335                                        int change_type,
 336                                        struct string_list_item *it)
 337{
 338        struct wt_status_change_data *d = it->util;
 339        const char *c = color(change_type, s);
 340        int status;
 341        char *one_name;
 342        char *two_name;
 343        const char *one, *two;
 344        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 345        struct strbuf extra = STRBUF_INIT;
 346        static char *padding;
 347        static int label_width;
 348        const char *what;
 349        int len;
 350
 351        if (!padding) {
 352                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 353                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 354                label_width += strlen(" ");
 355                padding = xmallocz(label_width);
 356                memset(padding, ' ', label_width);
 357        }
 358
 359        one_name = two_name = it->string;
 360        switch (change_type) {
 361        case WT_STATUS_UPDATED:
 362                status = d->index_status;
 363                if (d->head_path)
 364                        one_name = d->head_path;
 365                break;
 366        case WT_STATUS_CHANGED:
 367                if (d->new_submodule_commits || d->dirty_submodule) {
 368                        strbuf_addstr(&extra, " (");
 369                        if (d->new_submodule_commits)
 370                                strbuf_addf(&extra, _("new commits, "));
 371                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 372                                strbuf_addf(&extra, _("modified content, "));
 373                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 374                                strbuf_addf(&extra, _("untracked content, "));
 375                        strbuf_setlen(&extra, extra.len - 2);
 376                        strbuf_addch(&extra, ')');
 377                }
 378                status = d->worktree_status;
 379                break;
 380        default:
 381                die("BUG: unhandled change_type %d in wt_status_print_change_data",
 382                    change_type);
 383        }
 384
 385        one = quote_path(one_name, s->prefix, &onebuf);
 386        two = quote_path(two_name, s->prefix, &twobuf);
 387
 388        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 389        what = wt_status_diff_status_string(status);
 390        if (!what)
 391                die(_("bug: unhandled diff status %c"), status);
 392        len = label_width - utf8_strwidth(what);
 393        assert(len >= 0);
 394        if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 395                status_printf_more(s, c, "%s%.*s%s -> %s",
 396                                   what, len, padding, one, two);
 397        else
 398                status_printf_more(s, c, "%s%.*s%s",
 399                                   what, len, padding, one);
 400        if (extra.len) {
 401                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 402                strbuf_release(&extra);
 403        }
 404        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 405        strbuf_release(&onebuf);
 406        strbuf_release(&twobuf);
 407}
 408
 409static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 410                                         struct diff_options *options,
 411                                         void *data)
 412{
 413        struct wt_status *s = data;
 414        int i;
 415
 416        if (!q->nr)
 417                return;
 418        s->workdir_dirty = 1;
 419        for (i = 0; i < q->nr; i++) {
 420                struct diff_filepair *p;
 421                struct string_list_item *it;
 422                struct wt_status_change_data *d;
 423
 424                p = q->queue[i];
 425                it = string_list_insert(&s->change, p->one->path);
 426                d = it->util;
 427                if (!d) {
 428                        d = xcalloc(1, sizeof(*d));
 429                        it->util = d;
 430                }
 431                if (!d->worktree_status)
 432                        d->worktree_status = p->status;
 433                d->dirty_submodule = p->two->dirty_submodule;
 434                if (S_ISGITLINK(p->two->mode))
 435                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 436        }
 437}
 438
 439static int unmerged_mask(const char *path)
 440{
 441        int pos, mask;
 442        const struct cache_entry *ce;
 443
 444        pos = cache_name_pos(path, strlen(path));
 445        if (0 <= pos)
 446                return 0;
 447
 448        mask = 0;
 449        pos = -pos-1;
 450        while (pos < active_nr) {
 451                ce = active_cache[pos++];
 452                if (strcmp(ce->name, path) || !ce_stage(ce))
 453                        break;
 454                mask |= (1 << (ce_stage(ce) - 1));
 455        }
 456        return mask;
 457}
 458
 459static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 460                                         struct diff_options *options,
 461                                         void *data)
 462{
 463        struct wt_status *s = data;
 464        int i;
 465
 466        for (i = 0; i < q->nr; i++) {
 467                struct diff_filepair *p;
 468                struct string_list_item *it;
 469                struct wt_status_change_data *d;
 470
 471                p = q->queue[i];
 472                it = string_list_insert(&s->change, p->two->path);
 473                d = it->util;
 474                if (!d) {
 475                        d = xcalloc(1, sizeof(*d));
 476                        it->util = d;
 477                }
 478                if (!d->index_status)
 479                        d->index_status = p->status;
 480                switch (p->status) {
 481                case DIFF_STATUS_COPIED:
 482                case DIFF_STATUS_RENAMED:
 483                        d->head_path = xstrdup(p->one->path);
 484                        break;
 485                case DIFF_STATUS_UNMERGED:
 486                        d->stagemask = unmerged_mask(p->two->path);
 487                        break;
 488                }
 489        }
 490}
 491
 492static void wt_status_collect_changes_worktree(struct wt_status *s)
 493{
 494        struct rev_info rev;
 495
 496        init_revisions(&rev, NULL);
 497        setup_revisions(0, NULL, &rev, NULL);
 498        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 499        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 500        if (!s->show_untracked_files)
 501                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 502        if (s->ignore_submodule_arg) {
 503                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 504                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 505        }
 506        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 507        rev.diffopt.format_callback_data = s;
 508        copy_pathspec(&rev.prune_data, &s->pathspec);
 509        run_diff_files(&rev, 0);
 510}
 511
 512static void wt_status_collect_changes_index(struct wt_status *s)
 513{
 514        struct rev_info rev;
 515        struct setup_revision_opt opt;
 516
 517        init_revisions(&rev, NULL);
 518        memset(&opt, 0, sizeof(opt));
 519        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 520        setup_revisions(0, NULL, &rev, &opt);
 521
 522        DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 523        if (s->ignore_submodule_arg) {
 524                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 525        } else {
 526                /*
 527                 * Unless the user did explicitly request a submodule ignore
 528                 * mode by passing a command line option we do not ignore any
 529                 * changed submodule SHA-1s when comparing index and HEAD, no
 530                 * matter what is configured. Otherwise the user won't be
 531                 * shown any submodules she manually added (and which are
 532                 * staged to be committed), which would be really confusing.
 533                 */
 534                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 535        }
 536
 537        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 538        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 539        rev.diffopt.format_callback_data = s;
 540        rev.diffopt.detect_rename = 1;
 541        rev.diffopt.rename_limit = 200;
 542        rev.diffopt.break_opt = 0;
 543        copy_pathspec(&rev.prune_data, &s->pathspec);
 544        run_diff_index(&rev, 1);
 545}
 546
 547static void wt_status_collect_changes_initial(struct wt_status *s)
 548{
 549        int i;
 550
 551        for (i = 0; i < active_nr; i++) {
 552                struct string_list_item *it;
 553                struct wt_status_change_data *d;
 554                const struct cache_entry *ce = active_cache[i];
 555
 556                if (!ce_path_match(ce, &s->pathspec, NULL))
 557                        continue;
 558                it = string_list_insert(&s->change, ce->name);
 559                d = it->util;
 560                if (!d) {
 561                        d = xcalloc(1, sizeof(*d));
 562                        it->util = d;
 563                }
 564                if (ce_stage(ce)) {
 565                        d->index_status = DIFF_STATUS_UNMERGED;
 566                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 567                }
 568                else
 569                        d->index_status = DIFF_STATUS_ADDED;
 570        }
 571}
 572
 573static void wt_status_collect_untracked(struct wt_status *s)
 574{
 575        int i;
 576        struct dir_struct dir;
 577        struct timeval t_begin;
 578
 579        if (!s->show_untracked_files)
 580                return;
 581
 582        if (advice_status_u_option)
 583                gettimeofday(&t_begin, NULL);
 584
 585        memset(&dir, 0, sizeof(dir));
 586        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 587                dir.flags |=
 588                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 589        if (s->show_ignored_files)
 590                dir.flags |= DIR_SHOW_IGNORED_TOO;
 591        setup_standard_excludes(&dir);
 592
 593        fill_directory(&dir, &s->pathspec);
 594
 595        for (i = 0; i < dir.nr; i++) {
 596                struct dir_entry *ent = dir.entries[i];
 597                if (cache_name_is_other(ent->name, ent->len) &&
 598                    dir_path_match(ent, &s->pathspec, 0, NULL))
 599                        string_list_insert(&s->untracked, ent->name);
 600                free(ent);
 601        }
 602
 603        for (i = 0; i < dir.ignored_nr; i++) {
 604                struct dir_entry *ent = dir.ignored[i];
 605                if (cache_name_is_other(ent->name, ent->len) &&
 606                    dir_path_match(ent, &s->pathspec, 0, NULL))
 607                        string_list_insert(&s->ignored, ent->name);
 608                free(ent);
 609        }
 610
 611        free(dir.entries);
 612        free(dir.ignored);
 613        clear_directory(&dir);
 614
 615        if (advice_status_u_option) {
 616                struct timeval t_end;
 617                gettimeofday(&t_end, NULL);
 618                s->untracked_in_ms =
 619                        (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 620                        ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 621        }
 622}
 623
 624void wt_status_collect(struct wt_status *s)
 625{
 626        wt_status_collect_changes_worktree(s);
 627
 628        if (s->is_initial)
 629                wt_status_collect_changes_initial(s);
 630        else
 631                wt_status_collect_changes_index(s);
 632        wt_status_collect_untracked(s);
 633}
 634
 635static void wt_status_print_unmerged(struct wt_status *s)
 636{
 637        int shown_header = 0;
 638        int i;
 639
 640        for (i = 0; i < s->change.nr; i++) {
 641                struct wt_status_change_data *d;
 642                struct string_list_item *it;
 643                it = &(s->change.items[i]);
 644                d = it->util;
 645                if (!d->stagemask)
 646                        continue;
 647                if (!shown_header) {
 648                        wt_status_print_unmerged_header(s);
 649                        shown_header = 1;
 650                }
 651                wt_status_print_unmerged_data(s, it);
 652        }
 653        if (shown_header)
 654                wt_status_print_trailer(s);
 655
 656}
 657
 658static void wt_status_print_updated(struct wt_status *s)
 659{
 660        int shown_header = 0;
 661        int i;
 662
 663        for (i = 0; i < s->change.nr; i++) {
 664                struct wt_status_change_data *d;
 665                struct string_list_item *it;
 666                it = &(s->change.items[i]);
 667                d = it->util;
 668                if (!d->index_status ||
 669                    d->index_status == DIFF_STATUS_UNMERGED)
 670                        continue;
 671                if (!shown_header) {
 672                        wt_status_print_cached_header(s);
 673                        s->commitable = 1;
 674                        shown_header = 1;
 675                }
 676                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 677        }
 678        if (shown_header)
 679                wt_status_print_trailer(s);
 680}
 681
 682/*
 683 * -1 : has delete
 684 *  0 : no change
 685 *  1 : some change but no delete
 686 */
 687static int wt_status_check_worktree_changes(struct wt_status *s,
 688                                             int *dirty_submodules)
 689{
 690        int i;
 691        int changes = 0;
 692
 693        *dirty_submodules = 0;
 694
 695        for (i = 0; i < s->change.nr; i++) {
 696                struct wt_status_change_data *d;
 697                d = s->change.items[i].util;
 698                if (!d->worktree_status ||
 699                    d->worktree_status == DIFF_STATUS_UNMERGED)
 700                        continue;
 701                if (!changes)
 702                        changes = 1;
 703                if (d->dirty_submodule)
 704                        *dirty_submodules = 1;
 705                if (d->worktree_status == DIFF_STATUS_DELETED)
 706                        changes = -1;
 707        }
 708        return changes;
 709}
 710
 711static void wt_status_print_changed(struct wt_status *s)
 712{
 713        int i, dirty_submodules;
 714        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 715
 716        if (!worktree_changes)
 717                return;
 718
 719        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 720
 721        for (i = 0; i < s->change.nr; i++) {
 722                struct wt_status_change_data *d;
 723                struct string_list_item *it;
 724                it = &(s->change.items[i]);
 725                d = it->util;
 726                if (!d->worktree_status ||
 727                    d->worktree_status == DIFF_STATUS_UNMERGED)
 728                        continue;
 729                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 730        }
 731        wt_status_print_trailer(s);
 732}
 733
 734static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 735{
 736        struct child_process sm_summary;
 737        char summary_limit[64];
 738        struct argv_array env = ARGV_ARRAY_INIT;
 739        struct argv_array argv = ARGV_ARRAY_INIT;
 740        struct strbuf cmd_stdout = STRBUF_INIT;
 741        struct strbuf summary = STRBUF_INIT;
 742        char *summary_content;
 743        size_t len;
 744
 745        sprintf(summary_limit, "%d", s->submodule_summary);
 746        argv_array_pushf(&env, "GIT_INDEX_FILE=%s", s->index_file);
 747
 748        argv_array_push(&argv, "submodule");
 749        argv_array_push(&argv, "summary");
 750        argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 751        argv_array_push(&argv, "--for-status");
 752        argv_array_push(&argv, "--summary-limit");
 753        argv_array_push(&argv, summary_limit);
 754        if (!uncommitted)
 755                argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 756
 757        memset(&sm_summary, 0, sizeof(sm_summary));
 758        sm_summary.argv = argv.argv;
 759        sm_summary.env = env.argv;
 760        sm_summary.git_cmd = 1;
 761        sm_summary.no_stdin = 1;
 762        fflush(s->fp);
 763        sm_summary.out = -1;
 764
 765        run_command(&sm_summary);
 766        argv_array_clear(&env);
 767        argv_array_clear(&argv);
 768
 769        len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 770
 771        /* prepend header, only if there's an actual output */
 772        if (len) {
 773                if (uncommitted)
 774                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 775                else
 776                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 777                strbuf_addstr(&summary, "\n\n");
 778        }
 779        strbuf_addbuf(&summary, &cmd_stdout);
 780        strbuf_release(&cmd_stdout);
 781
 782        if (s->display_comment_prefix) {
 783                summary_content = strbuf_detach(&summary, &len);
 784                strbuf_add_commented_lines(&summary, summary_content, len);
 785                free(summary_content);
 786        }
 787
 788        fputs(summary.buf, s->fp);
 789        strbuf_release(&summary);
 790}
 791
 792static void wt_status_print_other(struct wt_status *s,
 793                                  struct string_list *l,
 794                                  const char *what,
 795                                  const char *how)
 796{
 797        int i;
 798        struct strbuf buf = STRBUF_INIT;
 799        static struct string_list output = STRING_LIST_INIT_DUP;
 800        struct column_options copts;
 801
 802        if (!l->nr)
 803                return;
 804
 805        wt_status_print_other_header(s, what, how);
 806
 807        for (i = 0; i < l->nr; i++) {
 808                struct string_list_item *it;
 809                const char *path;
 810                it = &(l->items[i]);
 811                path = quote_path(it->string, s->prefix, &buf);
 812                if (column_active(s->colopts)) {
 813                        string_list_append(&output, path);
 814                        continue;
 815                }
 816                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 817                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 818                                   "%s\n", path);
 819        }
 820
 821        strbuf_release(&buf);
 822        if (!column_active(s->colopts))
 823                goto conclude;
 824
 825        strbuf_addf(&buf, "%s%s\t%s",
 826                    color(WT_STATUS_HEADER, s),
 827                    s->display_comment_prefix ? "#" : "",
 828                    color(WT_STATUS_UNTRACKED, s));
 829        memset(&copts, 0, sizeof(copts));
 830        copts.padding = 1;
 831        copts.indent = buf.buf;
 832        if (want_color(s->use_color))
 833                copts.nl = GIT_COLOR_RESET "\n";
 834        print_columns(&output, s->colopts, &copts);
 835        string_list_clear(&output, 0);
 836        strbuf_release(&buf);
 837conclude:
 838        status_printf_ln(s, GIT_COLOR_NORMAL, "");
 839}
 840
 841void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 842{
 843        const char *p;
 844        struct strbuf pattern = STRBUF_INIT;
 845
 846        strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
 847        p = strstr(buf->buf, pattern.buf);
 848        if (p && (p == buf->buf || p[-1] == '\n'))
 849                strbuf_setlen(buf, p - buf->buf);
 850        strbuf_release(&pattern);
 851}
 852
 853void wt_status_add_cut_line(FILE *fp)
 854{
 855        const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 856        struct strbuf buf = STRBUF_INIT;
 857
 858        fprintf(fp, "%c %s", comment_line_char, cut_line);
 859        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 860        fputs(buf.buf, fp);
 861        strbuf_release(&buf);
 862}
 863
 864static void wt_status_print_verbose(struct wt_status *s)
 865{
 866        struct rev_info rev;
 867        struct setup_revision_opt opt;
 868
 869        init_revisions(&rev, NULL);
 870        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 871
 872        memset(&opt, 0, sizeof(opt));
 873        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 874        setup_revisions(0, NULL, &rev, &opt);
 875
 876        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 877        rev.diffopt.detect_rename = 1;
 878        rev.diffopt.file = s->fp;
 879        rev.diffopt.close_file = 0;
 880        /*
 881         * If we're not going to stdout, then we definitely don't
 882         * want color, since we are going to the commit message
 883         * file (and even the "auto" setting won't work, since it
 884         * will have checked isatty on stdout). But we then do want
 885         * to insert the scissor line here to reliably remove the
 886         * diff before committing.
 887         */
 888        if (s->fp != stdout) {
 889                rev.diffopt.use_color = 0;
 890                wt_status_add_cut_line(s->fp);
 891        }
 892        run_diff_index(&rev, 1);
 893}
 894
 895static void wt_status_print_tracking(struct wt_status *s)
 896{
 897        struct strbuf sb = STRBUF_INIT;
 898        const char *cp, *ep;
 899        struct branch *branch;
 900        char comment_line_string[3];
 901        int i;
 902
 903        assert(s->branch && !s->is_initial);
 904        if (!starts_with(s->branch, "refs/heads/"))
 905                return;
 906        branch = branch_get(s->branch + 11);
 907        if (!format_tracking_info(branch, &sb))
 908                return;
 909
 910        i = 0;
 911        if (s->display_comment_prefix) {
 912                comment_line_string[i++] = comment_line_char;
 913                comment_line_string[i++] = ' ';
 914        }
 915        comment_line_string[i] = '\0';
 916
 917        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 918                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 919                                 "%s%.*s", comment_line_string,
 920                                 (int)(ep - cp), cp);
 921        if (s->display_comment_prefix)
 922                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 923                                 comment_line_char);
 924        else
 925                fprintf_ln(s->fp, "");
 926}
 927
 928static int has_unmerged(struct wt_status *s)
 929{
 930        int i;
 931
 932        for (i = 0; i < s->change.nr; i++) {
 933                struct wt_status_change_data *d;
 934                d = s->change.items[i].util;
 935                if (d->stagemask)
 936                        return 1;
 937        }
 938        return 0;
 939}
 940
 941static void show_merge_in_progress(struct wt_status *s,
 942                                struct wt_status_state *state,
 943                                const char *color)
 944{
 945        if (has_unmerged(s)) {
 946                status_printf_ln(s, color, _("You have unmerged paths."));
 947                if (s->hints)
 948                        status_printf_ln(s, color,
 949                                _("  (fix conflicts and run \"git commit\")"));
 950        } else {
 951                status_printf_ln(s, color,
 952                        _("All conflicts fixed but you are still merging."));
 953                if (s->hints)
 954                        status_printf_ln(s, color,
 955                                _("  (use \"git commit\" to conclude merge)"));
 956        }
 957        wt_status_print_trailer(s);
 958}
 959
 960static void show_am_in_progress(struct wt_status *s,
 961                                struct wt_status_state *state,
 962                                const char *color)
 963{
 964        status_printf_ln(s, color,
 965                _("You are in the middle of an am session."));
 966        if (state->am_empty_patch)
 967                status_printf_ln(s, color,
 968                        _("The current patch is empty."));
 969        if (s->hints) {
 970                if (!state->am_empty_patch)
 971                        status_printf_ln(s, color,
 972                                _("  (fix conflicts and then run \"git am --continue\")"));
 973                status_printf_ln(s, color,
 974                        _("  (use \"git am --skip\" to skip this patch)"));
 975                status_printf_ln(s, color,
 976                        _("  (use \"git am --abort\" to restore the original branch)"));
 977        }
 978        wt_status_print_trailer(s);
 979}
 980
 981static char *read_line_from_git_path(const char *filename)
 982{
 983        struct strbuf buf = STRBUF_INIT;
 984        FILE *fp = fopen(git_path("%s", filename), "r");
 985        if (!fp) {
 986                strbuf_release(&buf);
 987                return NULL;
 988        }
 989        strbuf_getline(&buf, fp, '\n');
 990        if (!fclose(fp)) {
 991                return strbuf_detach(&buf, NULL);
 992        } else {
 993                strbuf_release(&buf);
 994                return NULL;
 995        }
 996}
 997
 998static int split_commit_in_progress(struct wt_status *s)
 999{
1000        int split_in_progress = 0;
1001        char *head = read_line_from_git_path("HEAD");
1002        char *orig_head = read_line_from_git_path("ORIG_HEAD");
1003        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
1004        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1005
1006        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
1007            !s->branch || strcmp(s->branch, "HEAD"))
1008                return split_in_progress;
1009
1010        if (!strcmp(rebase_amend, rebase_orig_head)) {
1011                if (strcmp(head, rebase_amend))
1012                        split_in_progress = 1;
1013        } else if (strcmp(orig_head, rebase_orig_head)) {
1014                split_in_progress = 1;
1015        }
1016
1017        if (!s->amend && !s->nowarn && !s->workdir_dirty)
1018                split_in_progress = 0;
1019
1020        free(head);
1021        free(orig_head);
1022        free(rebase_amend);
1023        free(rebase_orig_head);
1024        return split_in_progress;
1025}
1026
1027static void show_rebase_in_progress(struct wt_status *s,
1028                                struct wt_status_state *state,
1029                                const char *color)
1030{
1031        struct stat st;
1032
1033        if (has_unmerged(s)) {
1034                if (state->branch)
1035                        status_printf_ln(s, color,
1036                                         _("You are currently rebasing branch '%s' on '%s'."),
1037                                         state->branch,
1038                                         state->onto);
1039                else
1040                        status_printf_ln(s, color,
1041                                         _("You are currently rebasing."));
1042                if (s->hints) {
1043                        status_printf_ln(s, color,
1044                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1045                        status_printf_ln(s, color,
1046                                _("  (use \"git rebase --skip\" to skip this patch)"));
1047                        status_printf_ln(s, color,
1048                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1049                }
1050        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
1051                if (state->branch)
1052                        status_printf_ln(s, color,
1053                                         _("You are currently rebasing branch '%s' on '%s'."),
1054                                         state->branch,
1055                                         state->onto);
1056                else
1057                        status_printf_ln(s, color,
1058                                         _("You are currently rebasing."));
1059                if (s->hints)
1060                        status_printf_ln(s, color,
1061                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1062        } else if (split_commit_in_progress(s)) {
1063                if (state->branch)
1064                        status_printf_ln(s, color,
1065                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1066                                         state->branch,
1067                                         state->onto);
1068                else
1069                        status_printf_ln(s, color,
1070                                         _("You are currently splitting a commit during a rebase."));
1071                if (s->hints)
1072                        status_printf_ln(s, color,
1073                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1074        } else {
1075                if (state->branch)
1076                        status_printf_ln(s, color,
1077                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1078                                         state->branch,
1079                                         state->onto);
1080                else
1081                        status_printf_ln(s, color,
1082                                         _("You are currently editing a commit during a rebase."));
1083                if (s->hints && !s->amend) {
1084                        status_printf_ln(s, color,
1085                                _("  (use \"git commit --amend\" to amend the current commit)"));
1086                        status_printf_ln(s, color,
1087                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1088                }
1089        }
1090        wt_status_print_trailer(s);
1091}
1092
1093static void show_cherry_pick_in_progress(struct wt_status *s,
1094                                        struct wt_status_state *state,
1095                                        const char *color)
1096{
1097        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1098                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1099        if (s->hints) {
1100                if (has_unmerged(s))
1101                        status_printf_ln(s, color,
1102                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1103                else
1104                        status_printf_ln(s, color,
1105                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1106                status_printf_ln(s, color,
1107                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1108        }
1109        wt_status_print_trailer(s);
1110}
1111
1112static void show_revert_in_progress(struct wt_status *s,
1113                                        struct wt_status_state *state,
1114                                        const char *color)
1115{
1116        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1117                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1118        if (s->hints) {
1119                if (has_unmerged(s))
1120                        status_printf_ln(s, color,
1121                                _("  (fix conflicts and run \"git revert --continue\")"));
1122                else
1123                        status_printf_ln(s, color,
1124                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1125                status_printf_ln(s, color,
1126                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1127        }
1128        wt_status_print_trailer(s);
1129}
1130
1131static void show_bisect_in_progress(struct wt_status *s,
1132                                struct wt_status_state *state,
1133                                const char *color)
1134{
1135        if (state->branch)
1136                status_printf_ln(s, color,
1137                                 _("You are currently bisecting, started from branch '%s'."),
1138                                 state->branch);
1139        else
1140                status_printf_ln(s, color,
1141                                 _("You are currently bisecting."));
1142        if (s->hints)
1143                status_printf_ln(s, color,
1144                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1145        wt_status_print_trailer(s);
1146}
1147
1148/*
1149 * Extract branch information from rebase/bisect
1150 */
1151static char *read_and_strip_branch(const char *path)
1152{
1153        struct strbuf sb = STRBUF_INIT;
1154        unsigned char sha1[20];
1155
1156        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1157                goto got_nothing;
1158
1159        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1160                strbuf_setlen(&sb, sb.len - 1);
1161        if (!sb.len)
1162                goto got_nothing;
1163        if (starts_with(sb.buf, "refs/heads/"))
1164                strbuf_remove(&sb,0, strlen("refs/heads/"));
1165        else if (starts_with(sb.buf, "refs/"))
1166                ;
1167        else if (!get_sha1_hex(sb.buf, sha1)) {
1168                const char *abbrev;
1169                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1170                strbuf_reset(&sb);
1171                strbuf_addstr(&sb, abbrev);
1172        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1173                goto got_nothing;
1174        else                    /* bisect */
1175                ;
1176        return strbuf_detach(&sb, NULL);
1177
1178got_nothing:
1179        strbuf_release(&sb);
1180        return NULL;
1181}
1182
1183struct grab_1st_switch_cbdata {
1184        struct strbuf buf;
1185        unsigned char nsha1[20];
1186};
1187
1188static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1189                           const char *email, unsigned long timestamp, int tz,
1190                           const char *message, void *cb_data)
1191{
1192        struct grab_1st_switch_cbdata *cb = cb_data;
1193        const char *target = NULL, *end;
1194
1195        if (!starts_with(message, "checkout: moving from "))
1196                return 0;
1197        message += strlen("checkout: moving from ");
1198        target = strstr(message, " to ");
1199        if (!target)
1200                return 0;
1201        target += strlen(" to ");
1202        strbuf_reset(&cb->buf);
1203        hashcpy(cb->nsha1, nsha1);
1204        for (end = target; *end && *end != '\n'; end++)
1205                ;
1206        strbuf_add(&cb->buf, target, end - target);
1207        return 1;
1208}
1209
1210static void wt_status_get_detached_from(struct wt_status_state *state)
1211{
1212        struct grab_1st_switch_cbdata cb;
1213        struct commit *commit;
1214        unsigned char sha1[20];
1215        char *ref = NULL;
1216
1217        strbuf_init(&cb.buf, 0);
1218        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1219                strbuf_release(&cb.buf);
1220                return;
1221        }
1222
1223        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1224            /* sha1 is a commit? match without further lookup */
1225            (!hashcmp(cb.nsha1, sha1) ||
1226             /* perhaps sha1 is a tag, try to dereference to a commit */
1227             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1228              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1229                int ofs;
1230                if (starts_with(ref, "refs/tags/"))
1231                        ofs = strlen("refs/tags/");
1232                else if (starts_with(ref, "refs/remotes/"))
1233                        ofs = strlen("refs/remotes/");
1234                else
1235                        ofs = 0;
1236                state->detached_from = xstrdup(ref + ofs);
1237        } else
1238                state->detached_from =
1239                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1240        hashcpy(state->detached_sha1, cb.nsha1);
1241
1242        free(ref);
1243        strbuf_release(&cb.buf);
1244}
1245
1246void wt_status_get_state(struct wt_status_state *state,
1247                         int get_detached_from)
1248{
1249        struct stat st;
1250        unsigned char sha1[20];
1251
1252        if (!stat(git_path("MERGE_HEAD"), &st)) {
1253                state->merge_in_progress = 1;
1254        } else if (!stat(git_path("rebase-apply"), &st)) {
1255                if (!stat(git_path("rebase-apply/applying"), &st)) {
1256                        state->am_in_progress = 1;
1257                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1258                                state->am_empty_patch = 1;
1259                } else {
1260                        state->rebase_in_progress = 1;
1261                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1262                        state->onto = read_and_strip_branch("rebase-apply/onto");
1263                }
1264        } else if (!stat(git_path("rebase-merge"), &st)) {
1265                if (!stat(git_path("rebase-merge/interactive"), &st))
1266                        state->rebase_interactive_in_progress = 1;
1267                else
1268                        state->rebase_in_progress = 1;
1269                state->branch = read_and_strip_branch("rebase-merge/head-name");
1270                state->onto = read_and_strip_branch("rebase-merge/onto");
1271        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1272                        !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1273                state->cherry_pick_in_progress = 1;
1274                hashcpy(state->cherry_pick_head_sha1, sha1);
1275        }
1276        if (!stat(git_path("BISECT_LOG"), &st)) {
1277                state->bisect_in_progress = 1;
1278                state->branch = read_and_strip_branch("BISECT_START");
1279        }
1280        if (!stat(git_path("REVERT_HEAD"), &st) &&
1281            !get_sha1("REVERT_HEAD", sha1)) {
1282                state->revert_in_progress = 1;
1283                hashcpy(state->revert_head_sha1, sha1);
1284        }
1285
1286        if (get_detached_from)
1287                wt_status_get_detached_from(state);
1288}
1289
1290static void wt_status_print_state(struct wt_status *s,
1291                                  struct wt_status_state *state)
1292{
1293        const char *state_color = color(WT_STATUS_HEADER, s);
1294        if (state->merge_in_progress)
1295                show_merge_in_progress(s, state, state_color);
1296        else if (state->am_in_progress)
1297                show_am_in_progress(s, state, state_color);
1298        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1299                show_rebase_in_progress(s, state, state_color);
1300        else if (state->cherry_pick_in_progress)
1301                show_cherry_pick_in_progress(s, state, state_color);
1302        else if (state->revert_in_progress)
1303                show_revert_in_progress(s, state, state_color);
1304        if (state->bisect_in_progress)
1305                show_bisect_in_progress(s, state, state_color);
1306}
1307
1308void wt_status_print(struct wt_status *s)
1309{
1310        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1311        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1312        struct wt_status_state state;
1313
1314        memset(&state, 0, sizeof(state));
1315        wt_status_get_state(&state,
1316                            s->branch && !strcmp(s->branch, "HEAD"));
1317
1318        if (s->branch) {
1319                const char *on_what = _("On branch ");
1320                const char *branch_name = s->branch;
1321                if (starts_with(branch_name, "refs/heads/"))
1322                        branch_name += 11;
1323                else if (!strcmp(branch_name, "HEAD")) {
1324                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1325                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1326                                on_what = _("rebase in progress; onto ");
1327                                branch_name = state.onto;
1328                        } else if (state.detached_from) {
1329                                unsigned char sha1[20];
1330                                branch_name = state.detached_from;
1331                                if (!get_sha1("HEAD", sha1) &&
1332                                    !hashcmp(sha1, state.detached_sha1))
1333                                        on_what = _("HEAD detached at ");
1334                                else
1335                                        on_what = _("HEAD detached from ");
1336                        } else {
1337                                branch_name = "";
1338                                on_what = _("Not currently on any branch.");
1339                        }
1340                }
1341                status_printf(s, color(WT_STATUS_HEADER, s), "");
1342                status_printf_more(s, branch_status_color, "%s", on_what);
1343                status_printf_more(s, branch_color, "%s\n", branch_name);
1344                if (!s->is_initial)
1345                        wt_status_print_tracking(s);
1346        }
1347
1348        wt_status_print_state(s, &state);
1349        free(state.branch);
1350        free(state.onto);
1351        free(state.detached_from);
1352
1353        if (s->is_initial) {
1354                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1355                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1356                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1357        }
1358
1359        wt_status_print_updated(s);
1360        wt_status_print_unmerged(s);
1361        wt_status_print_changed(s);
1362        if (s->submodule_summary &&
1363            (!s->ignore_submodule_arg ||
1364             strcmp(s->ignore_submodule_arg, "all"))) {
1365                wt_status_print_submodule_summary(s, 0);  /* staged */
1366                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1367        }
1368        if (s->show_untracked_files) {
1369                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1370                if (s->show_ignored_files)
1371                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1372                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1373                        status_printf_ln(s, GIT_COLOR_NORMAL, "");
1374                        status_printf_ln(s, GIT_COLOR_NORMAL,
1375                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1376                                           "may speed it up, but you have to be careful not to forget to add\n"
1377                                           "new files yourself (see 'git help status')."),
1378                                         s->untracked_in_ms / 1000.0);
1379                }
1380        } else if (s->commitable)
1381                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1382                        s->hints
1383                        ? _(" (use -u option to show untracked files)") : "");
1384
1385        if (s->verbose)
1386                wt_status_print_verbose(s);
1387        if (!s->commitable) {
1388                if (s->amend)
1389                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1390                else if (s->nowarn)
1391                        ; /* nothing */
1392                else if (s->workdir_dirty) {
1393                        if (s->hints)
1394                                printf(_("no changes added to commit "
1395                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1396                        else
1397                                printf(_("no changes added to commit\n"));
1398                } else if (s->untracked.nr) {
1399                        if (s->hints)
1400                                printf(_("nothing added to commit but untracked files "
1401                                         "present (use \"git add\" to track)\n"));
1402                        else
1403                                printf(_("nothing added to commit but untracked files present\n"));
1404                } else if (s->is_initial) {
1405                        if (s->hints)
1406                                printf(_("nothing to commit (create/copy files "
1407                                         "and use \"git add\" to track)\n"));
1408                        else
1409                                printf(_("nothing to commit\n"));
1410                } else if (!s->show_untracked_files) {
1411                        if (s->hints)
1412                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1413                        else
1414                                printf(_("nothing to commit\n"));
1415                } else
1416                        printf(_("nothing to commit, working directory clean\n"));
1417        }
1418}
1419
1420static void wt_shortstatus_unmerged(struct string_list_item *it,
1421                           struct wt_status *s)
1422{
1423        struct wt_status_change_data *d = it->util;
1424        const char *how = "??";
1425
1426        switch (d->stagemask) {
1427        case 1: how = "DD"; break; /* both deleted */
1428        case 2: how = "AU"; break; /* added by us */
1429        case 3: how = "UD"; break; /* deleted by them */
1430        case 4: how = "UA"; break; /* added by them */
1431        case 5: how = "DU"; break; /* deleted by us */
1432        case 6: how = "AA"; break; /* both added */
1433        case 7: how = "UU"; break; /* both modified */
1434        }
1435        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1436        if (s->null_termination) {
1437                fprintf(stdout, " %s%c", it->string, 0);
1438        } else {
1439                struct strbuf onebuf = STRBUF_INIT;
1440                const char *one;
1441                one = quote_path(it->string, s->prefix, &onebuf);
1442                printf(" %s\n", one);
1443                strbuf_release(&onebuf);
1444        }
1445}
1446
1447static void wt_shortstatus_status(struct string_list_item *it,
1448                         struct wt_status *s)
1449{
1450        struct wt_status_change_data *d = it->util;
1451
1452        if (d->index_status)
1453                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1454        else
1455                putchar(' ');
1456        if (d->worktree_status)
1457                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1458        else
1459                putchar(' ');
1460        putchar(' ');
1461        if (s->null_termination) {
1462                fprintf(stdout, "%s%c", it->string, 0);
1463                if (d->head_path)
1464                        fprintf(stdout, "%s%c", d->head_path, 0);
1465        } else {
1466                struct strbuf onebuf = STRBUF_INIT;
1467                const char *one;
1468                if (d->head_path) {
1469                        one = quote_path(d->head_path, s->prefix, &onebuf);
1470                        if (*one != '"' && strchr(one, ' ') != NULL) {
1471                                putchar('"');
1472                                strbuf_addch(&onebuf, '"');
1473                                one = onebuf.buf;
1474                        }
1475                        printf("%s -> ", one);
1476                        strbuf_release(&onebuf);
1477                }
1478                one = quote_path(it->string, s->prefix, &onebuf);
1479                if (*one != '"' && strchr(one, ' ') != NULL) {
1480                        putchar('"');
1481                        strbuf_addch(&onebuf, '"');
1482                        one = onebuf.buf;
1483                }
1484                printf("%s\n", one);
1485                strbuf_release(&onebuf);
1486        }
1487}
1488
1489static void wt_shortstatus_other(struct string_list_item *it,
1490                                 struct wt_status *s, const char *sign)
1491{
1492        if (s->null_termination) {
1493                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1494        } else {
1495                struct strbuf onebuf = STRBUF_INIT;
1496                const char *one;
1497                one = quote_path(it->string, s->prefix, &onebuf);
1498                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1499                printf(" %s\n", one);
1500                strbuf_release(&onebuf);
1501        }
1502}
1503
1504static void wt_shortstatus_print_tracking(struct wt_status *s)
1505{
1506        struct branch *branch;
1507        const char *header_color = color(WT_STATUS_HEADER, s);
1508        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1509        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1510
1511        const char *base;
1512        const char *branch_name;
1513        int num_ours, num_theirs;
1514        int upstream_is_gone = 0;
1515
1516        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1517
1518        if (!s->branch)
1519                return;
1520        branch_name = s->branch;
1521
1522        if (starts_with(branch_name, "refs/heads/"))
1523                branch_name += 11;
1524        else if (!strcmp(branch_name, "HEAD")) {
1525                branch_name = _("HEAD (no branch)");
1526                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1527        }
1528
1529        branch = branch_get(s->branch + 11);
1530        if (s->is_initial)
1531                color_fprintf(s->fp, header_color, _("Initial commit on "));
1532
1533        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1534
1535        switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1536        case 0:
1537                /* no base */
1538                fputc(s->null_termination ? '\0' : '\n', s->fp);
1539                return;
1540        case -1:
1541                /* with "gone" base */
1542                upstream_is_gone = 1;
1543                break;
1544        default:
1545                /* with base */
1546                break;
1547        }
1548
1549        base = branch->merge[0]->dst;
1550        base = shorten_unambiguous_ref(base, 0);
1551        color_fprintf(s->fp, header_color, "...");
1552        color_fprintf(s->fp, branch_color_remote, "%s", base);
1553
1554        if (!upstream_is_gone && !num_ours && !num_theirs) {
1555                fputc(s->null_termination ? '\0' : '\n', s->fp);
1556                return;
1557        }
1558
1559#define LABEL(string) (s->no_gettext ? (string) : _(string))
1560
1561        color_fprintf(s->fp, header_color, " [");
1562        if (upstream_is_gone) {
1563                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1564        } else if (!num_ours) {
1565                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1566                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1567        } else if (!num_theirs) {
1568                color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1569                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1570        } else {
1571                color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1572                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1573                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1574                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1575        }
1576
1577        color_fprintf(s->fp, header_color, "]");
1578        fputc(s->null_termination ? '\0' : '\n', s->fp);
1579}
1580
1581void wt_shortstatus_print(struct wt_status *s)
1582{
1583        int i;
1584
1585        if (s->show_branch)
1586                wt_shortstatus_print_tracking(s);
1587
1588        for (i = 0; i < s->change.nr; i++) {
1589                struct wt_status_change_data *d;
1590                struct string_list_item *it;
1591
1592                it = &(s->change.items[i]);
1593                d = it->util;
1594                if (d->stagemask)
1595                        wt_shortstatus_unmerged(it, s);
1596                else
1597                        wt_shortstatus_status(it, s);
1598        }
1599        for (i = 0; i < s->untracked.nr; i++) {
1600                struct string_list_item *it;
1601
1602                it = &(s->untracked.items[i]);
1603                wt_shortstatus_other(it, s, "??");
1604        }
1605        for (i = 0; i < s->ignored.nr; i++) {
1606                struct string_list_item *it;
1607
1608                it = &(s->ignored.items[i]);
1609                wt_shortstatus_other(it, s, "!!");
1610        }
1611}
1612
1613void wt_porcelain_print(struct wt_status *s)
1614{
1615        s->use_color = 0;
1616        s->relative_paths = 0;
1617        s->prefix = NULL;
1618        s->no_gettext = 1;
1619        wt_shortstatus_print(s);
1620}