wt-status.con commit lockfile: allow reopening a closed but still locked file (93dcaea)
   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        if (s->ignore_submodule_arg) {
 523                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 524                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 525        }
 526
 527        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 528        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 529        rev.diffopt.format_callback_data = s;
 530        rev.diffopt.detect_rename = 1;
 531        rev.diffopt.rename_limit = 200;
 532        rev.diffopt.break_opt = 0;
 533        copy_pathspec(&rev.prune_data, &s->pathspec);
 534        run_diff_index(&rev, 1);
 535}
 536
 537static void wt_status_collect_changes_initial(struct wt_status *s)
 538{
 539        int i;
 540
 541        for (i = 0; i < active_nr; i++) {
 542                struct string_list_item *it;
 543                struct wt_status_change_data *d;
 544                const struct cache_entry *ce = active_cache[i];
 545
 546                if (!ce_path_match(ce, &s->pathspec, NULL))
 547                        continue;
 548                it = string_list_insert(&s->change, ce->name);
 549                d = it->util;
 550                if (!d) {
 551                        d = xcalloc(1, sizeof(*d));
 552                        it->util = d;
 553                }
 554                if (ce_stage(ce)) {
 555                        d->index_status = DIFF_STATUS_UNMERGED;
 556                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 557                }
 558                else
 559                        d->index_status = DIFF_STATUS_ADDED;
 560        }
 561}
 562
 563static void wt_status_collect_untracked(struct wt_status *s)
 564{
 565        int i;
 566        struct dir_struct dir;
 567        struct timeval t_begin;
 568
 569        if (!s->show_untracked_files)
 570                return;
 571
 572        if (advice_status_u_option)
 573                gettimeofday(&t_begin, NULL);
 574
 575        memset(&dir, 0, sizeof(dir));
 576        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 577                dir.flags |=
 578                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 579        if (s->show_ignored_files)
 580                dir.flags |= DIR_SHOW_IGNORED_TOO;
 581        setup_standard_excludes(&dir);
 582
 583        fill_directory(&dir, &s->pathspec);
 584
 585        for (i = 0; i < dir.nr; i++) {
 586                struct dir_entry *ent = dir.entries[i];
 587                if (cache_name_is_other(ent->name, ent->len) &&
 588                    dir_path_match(ent, &s->pathspec, 0, NULL))
 589                        string_list_insert(&s->untracked, ent->name);
 590                free(ent);
 591        }
 592
 593        for (i = 0; i < dir.ignored_nr; i++) {
 594                struct dir_entry *ent = dir.ignored[i];
 595                if (cache_name_is_other(ent->name, ent->len) &&
 596                    dir_path_match(ent, &s->pathspec, 0, NULL))
 597                        string_list_insert(&s->ignored, ent->name);
 598                free(ent);
 599        }
 600
 601        free(dir.entries);
 602        free(dir.ignored);
 603        clear_directory(&dir);
 604
 605        if (advice_status_u_option) {
 606                struct timeval t_end;
 607                gettimeofday(&t_end, NULL);
 608                s->untracked_in_ms =
 609                        (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 610                        ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 611        }
 612}
 613
 614void wt_status_collect(struct wt_status *s)
 615{
 616        wt_status_collect_changes_worktree(s);
 617
 618        if (s->is_initial)
 619                wt_status_collect_changes_initial(s);
 620        else
 621                wt_status_collect_changes_index(s);
 622        wt_status_collect_untracked(s);
 623}
 624
 625static void wt_status_print_unmerged(struct wt_status *s)
 626{
 627        int shown_header = 0;
 628        int i;
 629
 630        for (i = 0; i < s->change.nr; i++) {
 631                struct wt_status_change_data *d;
 632                struct string_list_item *it;
 633                it = &(s->change.items[i]);
 634                d = it->util;
 635                if (!d->stagemask)
 636                        continue;
 637                if (!shown_header) {
 638                        wt_status_print_unmerged_header(s);
 639                        shown_header = 1;
 640                }
 641                wt_status_print_unmerged_data(s, it);
 642        }
 643        if (shown_header)
 644                wt_status_print_trailer(s);
 645
 646}
 647
 648static void wt_status_print_updated(struct wt_status *s)
 649{
 650        int shown_header = 0;
 651        int i;
 652
 653        for (i = 0; i < s->change.nr; i++) {
 654                struct wt_status_change_data *d;
 655                struct string_list_item *it;
 656                it = &(s->change.items[i]);
 657                d = it->util;
 658                if (!d->index_status ||
 659                    d->index_status == DIFF_STATUS_UNMERGED)
 660                        continue;
 661                if (!shown_header) {
 662                        wt_status_print_cached_header(s);
 663                        s->commitable = 1;
 664                        shown_header = 1;
 665                }
 666                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 667        }
 668        if (shown_header)
 669                wt_status_print_trailer(s);
 670}
 671
 672/*
 673 * -1 : has delete
 674 *  0 : no change
 675 *  1 : some change but no delete
 676 */
 677static int wt_status_check_worktree_changes(struct wt_status *s,
 678                                             int *dirty_submodules)
 679{
 680        int i;
 681        int changes = 0;
 682
 683        *dirty_submodules = 0;
 684
 685        for (i = 0; i < s->change.nr; i++) {
 686                struct wt_status_change_data *d;
 687                d = s->change.items[i].util;
 688                if (!d->worktree_status ||
 689                    d->worktree_status == DIFF_STATUS_UNMERGED)
 690                        continue;
 691                if (!changes)
 692                        changes = 1;
 693                if (d->dirty_submodule)
 694                        *dirty_submodules = 1;
 695                if (d->worktree_status == DIFF_STATUS_DELETED)
 696                        changes = -1;
 697        }
 698        return changes;
 699}
 700
 701static void wt_status_print_changed(struct wt_status *s)
 702{
 703        int i, dirty_submodules;
 704        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 705
 706        if (!worktree_changes)
 707                return;
 708
 709        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 710
 711        for (i = 0; i < s->change.nr; i++) {
 712                struct wt_status_change_data *d;
 713                struct string_list_item *it;
 714                it = &(s->change.items[i]);
 715                d = it->util;
 716                if (!d->worktree_status ||
 717                    d->worktree_status == DIFF_STATUS_UNMERGED)
 718                        continue;
 719                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 720        }
 721        wt_status_print_trailer(s);
 722}
 723
 724static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 725{
 726        struct child_process sm_summary;
 727        char summary_limit[64];
 728        char index[PATH_MAX];
 729        const char *env[] = { NULL, NULL };
 730        struct argv_array argv = ARGV_ARRAY_INIT;
 731        struct strbuf cmd_stdout = STRBUF_INIT;
 732        struct strbuf summary = STRBUF_INIT;
 733        char *summary_content;
 734        size_t len;
 735
 736        sprintf(summary_limit, "%d", s->submodule_summary);
 737        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 738
 739        env[0] = index;
 740        argv_array_push(&argv, "submodule");
 741        argv_array_push(&argv, "summary");
 742        argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 743        argv_array_push(&argv, "--for-status");
 744        argv_array_push(&argv, "--summary-limit");
 745        argv_array_push(&argv, summary_limit);
 746        if (!uncommitted)
 747                argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 748
 749        memset(&sm_summary, 0, sizeof(sm_summary));
 750        sm_summary.argv = argv.argv;
 751        sm_summary.env = env;
 752        sm_summary.git_cmd = 1;
 753        sm_summary.no_stdin = 1;
 754        fflush(s->fp);
 755        sm_summary.out = -1;
 756
 757        run_command(&sm_summary);
 758        argv_array_clear(&argv);
 759
 760        len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 761
 762        /* prepend header, only if there's an actual output */
 763        if (len) {
 764                if (uncommitted)
 765                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 766                else
 767                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 768                strbuf_addstr(&summary, "\n\n");
 769        }
 770        strbuf_addbuf(&summary, &cmd_stdout);
 771        strbuf_release(&cmd_stdout);
 772
 773        if (s->display_comment_prefix) {
 774                summary_content = strbuf_detach(&summary, &len);
 775                strbuf_add_commented_lines(&summary, summary_content, len);
 776                free(summary_content);
 777        }
 778
 779        fputs(summary.buf, s->fp);
 780        strbuf_release(&summary);
 781}
 782
 783static void wt_status_print_other(struct wt_status *s,
 784                                  struct string_list *l,
 785                                  const char *what,
 786                                  const char *how)
 787{
 788        int i;
 789        struct strbuf buf = STRBUF_INIT;
 790        static struct string_list output = STRING_LIST_INIT_DUP;
 791        struct column_options copts;
 792
 793        if (!l->nr)
 794                return;
 795
 796        wt_status_print_other_header(s, what, how);
 797
 798        for (i = 0; i < l->nr; i++) {
 799                struct string_list_item *it;
 800                const char *path;
 801                it = &(l->items[i]);
 802                path = quote_path(it->string, s->prefix, &buf);
 803                if (column_active(s->colopts)) {
 804                        string_list_append(&output, path);
 805                        continue;
 806                }
 807                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 808                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 809                                   "%s\n", path);
 810        }
 811
 812        strbuf_release(&buf);
 813        if (!column_active(s->colopts))
 814                goto conclude;
 815
 816        strbuf_addf(&buf, "%s%s\t%s",
 817                    color(WT_STATUS_HEADER, s),
 818                    s->display_comment_prefix ? "#" : "",
 819                    color(WT_STATUS_UNTRACKED, s));
 820        memset(&copts, 0, sizeof(copts));
 821        copts.padding = 1;
 822        copts.indent = buf.buf;
 823        if (want_color(s->use_color))
 824                copts.nl = GIT_COLOR_RESET "\n";
 825        print_columns(&output, s->colopts, &copts);
 826        string_list_clear(&output, 0);
 827        strbuf_release(&buf);
 828conclude:
 829        status_printf_ln(s, GIT_COLOR_NORMAL, "");
 830}
 831
 832void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 833{
 834        const char *p;
 835        struct strbuf pattern = STRBUF_INIT;
 836
 837        strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
 838        p = strstr(buf->buf, pattern.buf);
 839        if (p && (p == buf->buf || p[-1] == '\n'))
 840                strbuf_setlen(buf, p - buf->buf);
 841        strbuf_release(&pattern);
 842}
 843
 844void wt_status_add_cut_line(FILE *fp)
 845{
 846        const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 847        struct strbuf buf = STRBUF_INIT;
 848
 849        fprintf(fp, "%c %s", comment_line_char, cut_line);
 850        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 851        fputs(buf.buf, fp);
 852        strbuf_release(&buf);
 853}
 854
 855static void wt_status_print_verbose(struct wt_status *s)
 856{
 857        struct rev_info rev;
 858        struct setup_revision_opt opt;
 859
 860        init_revisions(&rev, NULL);
 861        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 862
 863        memset(&opt, 0, sizeof(opt));
 864        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 865        setup_revisions(0, NULL, &rev, &opt);
 866
 867        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 868        rev.diffopt.detect_rename = 1;
 869        rev.diffopt.file = s->fp;
 870        rev.diffopt.close_file = 0;
 871        /*
 872         * If we're not going to stdout, then we definitely don't
 873         * want color, since we are going to the commit message
 874         * file (and even the "auto" setting won't work, since it
 875         * will have checked isatty on stdout). But we then do want
 876         * to insert the scissor line here to reliably remove the
 877         * diff before committing.
 878         */
 879        if (s->fp != stdout) {
 880                rev.diffopt.use_color = 0;
 881                wt_status_add_cut_line(s->fp);
 882        }
 883        run_diff_index(&rev, 1);
 884}
 885
 886static void wt_status_print_tracking(struct wt_status *s)
 887{
 888        struct strbuf sb = STRBUF_INIT;
 889        const char *cp, *ep;
 890        struct branch *branch;
 891        char comment_line_string[3];
 892        int i;
 893
 894        assert(s->branch && !s->is_initial);
 895        if (!starts_with(s->branch, "refs/heads/"))
 896                return;
 897        branch = branch_get(s->branch + 11);
 898        if (!format_tracking_info(branch, &sb))
 899                return;
 900
 901        i = 0;
 902        if (s->display_comment_prefix) {
 903                comment_line_string[i++] = comment_line_char;
 904                comment_line_string[i++] = ' ';
 905        }
 906        comment_line_string[i] = '\0';
 907
 908        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 909                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 910                                 "%s%.*s", comment_line_string,
 911                                 (int)(ep - cp), cp);
 912        if (s->display_comment_prefix)
 913                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 914                                 comment_line_char);
 915        else
 916                fprintf_ln(s->fp, "");
 917}
 918
 919static int has_unmerged(struct wt_status *s)
 920{
 921        int i;
 922
 923        for (i = 0; i < s->change.nr; i++) {
 924                struct wt_status_change_data *d;
 925                d = s->change.items[i].util;
 926                if (d->stagemask)
 927                        return 1;
 928        }
 929        return 0;
 930}
 931
 932static void show_merge_in_progress(struct wt_status *s,
 933                                struct wt_status_state *state,
 934                                const char *color)
 935{
 936        if (has_unmerged(s)) {
 937                status_printf_ln(s, color, _("You have unmerged paths."));
 938                if (s->hints)
 939                        status_printf_ln(s, color,
 940                                _("  (fix conflicts and run \"git commit\")"));
 941        } else {
 942                status_printf_ln(s, color,
 943                        _("All conflicts fixed but you are still merging."));
 944                if (s->hints)
 945                        status_printf_ln(s, color,
 946                                _("  (use \"git commit\" to conclude merge)"));
 947        }
 948        wt_status_print_trailer(s);
 949}
 950
 951static void show_am_in_progress(struct wt_status *s,
 952                                struct wt_status_state *state,
 953                                const char *color)
 954{
 955        status_printf_ln(s, color,
 956                _("You are in the middle of an am session."));
 957        if (state->am_empty_patch)
 958                status_printf_ln(s, color,
 959                        _("The current patch is empty."));
 960        if (s->hints) {
 961                if (!state->am_empty_patch)
 962                        status_printf_ln(s, color,
 963                                _("  (fix conflicts and then run \"git am --continue\")"));
 964                status_printf_ln(s, color,
 965                        _("  (use \"git am --skip\" to skip this patch)"));
 966                status_printf_ln(s, color,
 967                        _("  (use \"git am --abort\" to restore the original branch)"));
 968        }
 969        wt_status_print_trailer(s);
 970}
 971
 972static char *read_line_from_git_path(const char *filename)
 973{
 974        struct strbuf buf = STRBUF_INIT;
 975        FILE *fp = fopen(git_path("%s", filename), "r");
 976        if (!fp) {
 977                strbuf_release(&buf);
 978                return NULL;
 979        }
 980        strbuf_getline(&buf, fp, '\n');
 981        if (!fclose(fp)) {
 982                return strbuf_detach(&buf, NULL);
 983        } else {
 984                strbuf_release(&buf);
 985                return NULL;
 986        }
 987}
 988
 989static int split_commit_in_progress(struct wt_status *s)
 990{
 991        int split_in_progress = 0;
 992        char *head = read_line_from_git_path("HEAD");
 993        char *orig_head = read_line_from_git_path("ORIG_HEAD");
 994        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 995        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 996
 997        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 998            !s->branch || strcmp(s->branch, "HEAD"))
 999                return split_in_progress;
1000
1001        if (!strcmp(rebase_amend, rebase_orig_head)) {
1002                if (strcmp(head, rebase_amend))
1003                        split_in_progress = 1;
1004        } else if (strcmp(orig_head, rebase_orig_head)) {
1005                split_in_progress = 1;
1006        }
1007
1008        if (!s->amend && !s->nowarn && !s->workdir_dirty)
1009                split_in_progress = 0;
1010
1011        free(head);
1012        free(orig_head);
1013        free(rebase_amend);
1014        free(rebase_orig_head);
1015        return split_in_progress;
1016}
1017
1018static void show_rebase_in_progress(struct wt_status *s,
1019                                struct wt_status_state *state,
1020                                const char *color)
1021{
1022        struct stat st;
1023
1024        if (has_unmerged(s)) {
1025                if (state->branch)
1026                        status_printf_ln(s, color,
1027                                         _("You are currently rebasing branch '%s' on '%s'."),
1028                                         state->branch,
1029                                         state->onto);
1030                else
1031                        status_printf_ln(s, color,
1032                                         _("You are currently rebasing."));
1033                if (s->hints) {
1034                        status_printf_ln(s, color,
1035                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1036                        status_printf_ln(s, color,
1037                                _("  (use \"git rebase --skip\" to skip this patch)"));
1038                        status_printf_ln(s, color,
1039                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1040                }
1041        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
1042                if (state->branch)
1043                        status_printf_ln(s, color,
1044                                         _("You are currently rebasing branch '%s' on '%s'."),
1045                                         state->branch,
1046                                         state->onto);
1047                else
1048                        status_printf_ln(s, color,
1049                                         _("You are currently rebasing."));
1050                if (s->hints)
1051                        status_printf_ln(s, color,
1052                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1053        } else if (split_commit_in_progress(s)) {
1054                if (state->branch)
1055                        status_printf_ln(s, color,
1056                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1057                                         state->branch,
1058                                         state->onto);
1059                else
1060                        status_printf_ln(s, color,
1061                                         _("You are currently splitting a commit during a rebase."));
1062                if (s->hints)
1063                        status_printf_ln(s, color,
1064                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1065        } else {
1066                if (state->branch)
1067                        status_printf_ln(s, color,
1068                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1069                                         state->branch,
1070                                         state->onto);
1071                else
1072                        status_printf_ln(s, color,
1073                                         _("You are currently editing a commit during a rebase."));
1074                if (s->hints && !s->amend) {
1075                        status_printf_ln(s, color,
1076                                _("  (use \"git commit --amend\" to amend the current commit)"));
1077                        status_printf_ln(s, color,
1078                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1079                }
1080        }
1081        wt_status_print_trailer(s);
1082}
1083
1084static void show_cherry_pick_in_progress(struct wt_status *s,
1085                                        struct wt_status_state *state,
1086                                        const char *color)
1087{
1088        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1089                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1090        if (s->hints) {
1091                if (has_unmerged(s))
1092                        status_printf_ln(s, color,
1093                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1094                else
1095                        status_printf_ln(s, color,
1096                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1097                status_printf_ln(s, color,
1098                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1099        }
1100        wt_status_print_trailer(s);
1101}
1102
1103static void show_revert_in_progress(struct wt_status *s,
1104                                        struct wt_status_state *state,
1105                                        const char *color)
1106{
1107        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1108                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1109        if (s->hints) {
1110                if (has_unmerged(s))
1111                        status_printf_ln(s, color,
1112                                _("  (fix conflicts and run \"git revert --continue\")"));
1113                else
1114                        status_printf_ln(s, color,
1115                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1116                status_printf_ln(s, color,
1117                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1118        }
1119        wt_status_print_trailer(s);
1120}
1121
1122static void show_bisect_in_progress(struct wt_status *s,
1123                                struct wt_status_state *state,
1124                                const char *color)
1125{
1126        if (state->branch)
1127                status_printf_ln(s, color,
1128                                 _("You are currently bisecting, started from branch '%s'."),
1129                                 state->branch);
1130        else
1131                status_printf_ln(s, color,
1132                                 _("You are currently bisecting."));
1133        if (s->hints)
1134                status_printf_ln(s, color,
1135                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1136        wt_status_print_trailer(s);
1137}
1138
1139/*
1140 * Extract branch information from rebase/bisect
1141 */
1142static char *read_and_strip_branch(const char *path)
1143{
1144        struct strbuf sb = STRBUF_INIT;
1145        unsigned char sha1[20];
1146
1147        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1148                goto got_nothing;
1149
1150        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1151                strbuf_setlen(&sb, sb.len - 1);
1152        if (!sb.len)
1153                goto got_nothing;
1154        if (starts_with(sb.buf, "refs/heads/"))
1155                strbuf_remove(&sb,0, strlen("refs/heads/"));
1156        else if (starts_with(sb.buf, "refs/"))
1157                ;
1158        else if (!get_sha1_hex(sb.buf, sha1)) {
1159                const char *abbrev;
1160                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1161                strbuf_reset(&sb);
1162                strbuf_addstr(&sb, abbrev);
1163        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1164                goto got_nothing;
1165        else                    /* bisect */
1166                ;
1167        return strbuf_detach(&sb, NULL);
1168
1169got_nothing:
1170        strbuf_release(&sb);
1171        return NULL;
1172}
1173
1174struct grab_1st_switch_cbdata {
1175        struct strbuf buf;
1176        unsigned char nsha1[20];
1177};
1178
1179static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1180                           const char *email, unsigned long timestamp, int tz,
1181                           const char *message, void *cb_data)
1182{
1183        struct grab_1st_switch_cbdata *cb = cb_data;
1184        const char *target = NULL, *end;
1185
1186        if (!starts_with(message, "checkout: moving from "))
1187                return 0;
1188        message += strlen("checkout: moving from ");
1189        target = strstr(message, " to ");
1190        if (!target)
1191                return 0;
1192        target += strlen(" to ");
1193        strbuf_reset(&cb->buf);
1194        hashcpy(cb->nsha1, nsha1);
1195        for (end = target; *end && *end != '\n'; end++)
1196                ;
1197        strbuf_add(&cb->buf, target, end - target);
1198        return 1;
1199}
1200
1201static void wt_status_get_detached_from(struct wt_status_state *state)
1202{
1203        struct grab_1st_switch_cbdata cb;
1204        struct commit *commit;
1205        unsigned char sha1[20];
1206        char *ref = NULL;
1207
1208        strbuf_init(&cb.buf, 0);
1209        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1210                strbuf_release(&cb.buf);
1211                return;
1212        }
1213
1214        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1215            /* sha1 is a commit? match without further lookup */
1216            (!hashcmp(cb.nsha1, sha1) ||
1217             /* perhaps sha1 is a tag, try to dereference to a commit */
1218             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1219              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1220                int ofs;
1221                if (starts_with(ref, "refs/tags/"))
1222                        ofs = strlen("refs/tags/");
1223                else if (starts_with(ref, "refs/remotes/"))
1224                        ofs = strlen("refs/remotes/");
1225                else
1226                        ofs = 0;
1227                state->detached_from = xstrdup(ref + ofs);
1228        } else
1229                state->detached_from =
1230                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1231        hashcpy(state->detached_sha1, cb.nsha1);
1232
1233        free(ref);
1234        strbuf_release(&cb.buf);
1235}
1236
1237void wt_status_get_state(struct wt_status_state *state,
1238                         int get_detached_from)
1239{
1240        struct stat st;
1241        unsigned char sha1[20];
1242
1243        if (!stat(git_path("MERGE_HEAD"), &st)) {
1244                state->merge_in_progress = 1;
1245        } else if (!stat(git_path("rebase-apply"), &st)) {
1246                if (!stat(git_path("rebase-apply/applying"), &st)) {
1247                        state->am_in_progress = 1;
1248                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1249                                state->am_empty_patch = 1;
1250                } else {
1251                        state->rebase_in_progress = 1;
1252                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1253                        state->onto = read_and_strip_branch("rebase-apply/onto");
1254                }
1255        } else if (!stat(git_path("rebase-merge"), &st)) {
1256                if (!stat(git_path("rebase-merge/interactive"), &st))
1257                        state->rebase_interactive_in_progress = 1;
1258                else
1259                        state->rebase_in_progress = 1;
1260                state->branch = read_and_strip_branch("rebase-merge/head-name");
1261                state->onto = read_and_strip_branch("rebase-merge/onto");
1262        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1263                        !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1264                state->cherry_pick_in_progress = 1;
1265                hashcpy(state->cherry_pick_head_sha1, sha1);
1266        }
1267        if (!stat(git_path("BISECT_LOG"), &st)) {
1268                state->bisect_in_progress = 1;
1269                state->branch = read_and_strip_branch("BISECT_START");
1270        }
1271        if (!stat(git_path("REVERT_HEAD"), &st) &&
1272            !get_sha1("REVERT_HEAD", sha1)) {
1273                state->revert_in_progress = 1;
1274                hashcpy(state->revert_head_sha1, sha1);
1275        }
1276
1277        if (get_detached_from)
1278                wt_status_get_detached_from(state);
1279}
1280
1281static void wt_status_print_state(struct wt_status *s,
1282                                  struct wt_status_state *state)
1283{
1284        const char *state_color = color(WT_STATUS_HEADER, s);
1285        if (state->merge_in_progress)
1286                show_merge_in_progress(s, state, state_color);
1287        else if (state->am_in_progress)
1288                show_am_in_progress(s, state, state_color);
1289        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1290                show_rebase_in_progress(s, state, state_color);
1291        else if (state->cherry_pick_in_progress)
1292                show_cherry_pick_in_progress(s, state, state_color);
1293        else if (state->revert_in_progress)
1294                show_revert_in_progress(s, state, state_color);
1295        if (state->bisect_in_progress)
1296                show_bisect_in_progress(s, state, state_color);
1297}
1298
1299void wt_status_print(struct wt_status *s)
1300{
1301        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1302        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1303        struct wt_status_state state;
1304
1305        memset(&state, 0, sizeof(state));
1306        wt_status_get_state(&state,
1307                            s->branch && !strcmp(s->branch, "HEAD"));
1308
1309        if (s->branch) {
1310                const char *on_what = _("On branch ");
1311                const char *branch_name = s->branch;
1312                if (starts_with(branch_name, "refs/heads/"))
1313                        branch_name += 11;
1314                else if (!strcmp(branch_name, "HEAD")) {
1315                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1316                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1317                                on_what = _("rebase in progress; onto ");
1318                                branch_name = state.onto;
1319                        } else if (state.detached_from) {
1320                                unsigned char sha1[20];
1321                                branch_name = state.detached_from;
1322                                if (!get_sha1("HEAD", sha1) &&
1323                                    !hashcmp(sha1, state.detached_sha1))
1324                                        on_what = _("HEAD detached at ");
1325                                else
1326                                        on_what = _("HEAD detached from ");
1327                        } else {
1328                                branch_name = "";
1329                                on_what = _("Not currently on any branch.");
1330                        }
1331                }
1332                status_printf(s, color(WT_STATUS_HEADER, s), "");
1333                status_printf_more(s, branch_status_color, "%s", on_what);
1334                status_printf_more(s, branch_color, "%s\n", branch_name);
1335                if (!s->is_initial)
1336                        wt_status_print_tracking(s);
1337        }
1338
1339        wt_status_print_state(s, &state);
1340        free(state.branch);
1341        free(state.onto);
1342        free(state.detached_from);
1343
1344        if (s->is_initial) {
1345                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1346                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1347                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1348        }
1349
1350        wt_status_print_updated(s);
1351        wt_status_print_unmerged(s);
1352        wt_status_print_changed(s);
1353        if (s->submodule_summary &&
1354            (!s->ignore_submodule_arg ||
1355             strcmp(s->ignore_submodule_arg, "all"))) {
1356                wt_status_print_submodule_summary(s, 0);  /* staged */
1357                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1358        }
1359        if (s->show_untracked_files) {
1360                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1361                if (s->show_ignored_files)
1362                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1363                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1364                        status_printf_ln(s, GIT_COLOR_NORMAL, "");
1365                        status_printf_ln(s, GIT_COLOR_NORMAL,
1366                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1367                                           "may speed it up, but you have to be careful not to forget to add\n"
1368                                           "new files yourself (see 'git help status')."),
1369                                         s->untracked_in_ms / 1000.0);
1370                }
1371        } else if (s->commitable)
1372                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1373                        s->hints
1374                        ? _(" (use -u option to show untracked files)") : "");
1375
1376        if (s->verbose)
1377                wt_status_print_verbose(s);
1378        if (!s->commitable) {
1379                if (s->amend)
1380                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1381                else if (s->nowarn)
1382                        ; /* nothing */
1383                else if (s->workdir_dirty) {
1384                        if (s->hints)
1385                                printf(_("no changes added to commit "
1386                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1387                        else
1388                                printf(_("no changes added to commit\n"));
1389                } else if (s->untracked.nr) {
1390                        if (s->hints)
1391                                printf(_("nothing added to commit but untracked files "
1392                                         "present (use \"git add\" to track)\n"));
1393                        else
1394                                printf(_("nothing added to commit but untracked files present\n"));
1395                } else if (s->is_initial) {
1396                        if (s->hints)
1397                                printf(_("nothing to commit (create/copy files "
1398                                         "and use \"git add\" to track)\n"));
1399                        else
1400                                printf(_("nothing to commit\n"));
1401                } else if (!s->show_untracked_files) {
1402                        if (s->hints)
1403                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1404                        else
1405                                printf(_("nothing to commit\n"));
1406                } else
1407                        printf(_("nothing to commit, working directory clean\n"));
1408        }
1409}
1410
1411static void wt_shortstatus_unmerged(struct string_list_item *it,
1412                           struct wt_status *s)
1413{
1414        struct wt_status_change_data *d = it->util;
1415        const char *how = "??";
1416
1417        switch (d->stagemask) {
1418        case 1: how = "DD"; break; /* both deleted */
1419        case 2: how = "AU"; break; /* added by us */
1420        case 3: how = "UD"; break; /* deleted by them */
1421        case 4: how = "UA"; break; /* added by them */
1422        case 5: how = "DU"; break; /* deleted by us */
1423        case 6: how = "AA"; break; /* both added */
1424        case 7: how = "UU"; break; /* both modified */
1425        }
1426        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1427        if (s->null_termination) {
1428                fprintf(stdout, " %s%c", it->string, 0);
1429        } else {
1430                struct strbuf onebuf = STRBUF_INIT;
1431                const char *one;
1432                one = quote_path(it->string, s->prefix, &onebuf);
1433                printf(" %s\n", one);
1434                strbuf_release(&onebuf);
1435        }
1436}
1437
1438static void wt_shortstatus_status(struct string_list_item *it,
1439                         struct wt_status *s)
1440{
1441        struct wt_status_change_data *d = it->util;
1442
1443        if (d->index_status)
1444                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1445        else
1446                putchar(' ');
1447        if (d->worktree_status)
1448                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1449        else
1450                putchar(' ');
1451        putchar(' ');
1452        if (s->null_termination) {
1453                fprintf(stdout, "%s%c", it->string, 0);
1454                if (d->head_path)
1455                        fprintf(stdout, "%s%c", d->head_path, 0);
1456        } else {
1457                struct strbuf onebuf = STRBUF_INIT;
1458                const char *one;
1459                if (d->head_path) {
1460                        one = quote_path(d->head_path, s->prefix, &onebuf);
1461                        if (*one != '"' && strchr(one, ' ') != NULL) {
1462                                putchar('"');
1463                                strbuf_addch(&onebuf, '"');
1464                                one = onebuf.buf;
1465                        }
1466                        printf("%s -> ", one);
1467                        strbuf_release(&onebuf);
1468                }
1469                one = quote_path(it->string, s->prefix, &onebuf);
1470                if (*one != '"' && strchr(one, ' ') != NULL) {
1471                        putchar('"');
1472                        strbuf_addch(&onebuf, '"');
1473                        one = onebuf.buf;
1474                }
1475                printf("%s\n", one);
1476                strbuf_release(&onebuf);
1477        }
1478}
1479
1480static void wt_shortstatus_other(struct string_list_item *it,
1481                                 struct wt_status *s, const char *sign)
1482{
1483        if (s->null_termination) {
1484                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1485        } else {
1486                struct strbuf onebuf = STRBUF_INIT;
1487                const char *one;
1488                one = quote_path(it->string, s->prefix, &onebuf);
1489                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1490                printf(" %s\n", one);
1491                strbuf_release(&onebuf);
1492        }
1493}
1494
1495static void wt_shortstatus_print_tracking(struct wt_status *s)
1496{
1497        struct branch *branch;
1498        const char *header_color = color(WT_STATUS_HEADER, s);
1499        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1500        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1501
1502        const char *base;
1503        const char *branch_name;
1504        int num_ours, num_theirs;
1505        int upstream_is_gone = 0;
1506
1507        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1508
1509        if (!s->branch)
1510                return;
1511        branch_name = s->branch;
1512
1513        if (starts_with(branch_name, "refs/heads/"))
1514                branch_name += 11;
1515        else if (!strcmp(branch_name, "HEAD")) {
1516                branch_name = _("HEAD (no branch)");
1517                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1518        }
1519
1520        branch = branch_get(s->branch + 11);
1521        if (s->is_initial)
1522                color_fprintf(s->fp, header_color, _("Initial commit on "));
1523
1524        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1525
1526        switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1527        case 0:
1528                /* no base */
1529                fputc(s->null_termination ? '\0' : '\n', s->fp);
1530                return;
1531        case -1:
1532                /* with "gone" base */
1533                upstream_is_gone = 1;
1534                break;
1535        default:
1536                /* with base */
1537                break;
1538        }
1539
1540        base = branch->merge[0]->dst;
1541        base = shorten_unambiguous_ref(base, 0);
1542        color_fprintf(s->fp, header_color, "...");
1543        color_fprintf(s->fp, branch_color_remote, "%s", base);
1544
1545        if (!upstream_is_gone && !num_ours && !num_theirs) {
1546                fputc(s->null_termination ? '\0' : '\n', s->fp);
1547                return;
1548        }
1549
1550#define LABEL(string) (s->no_gettext ? (string) : _(string))
1551
1552        color_fprintf(s->fp, header_color, " [");
1553        if (upstream_is_gone) {
1554                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1555        } else if (!num_ours) {
1556                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1557                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1558        } else if (!num_theirs) {
1559                color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1560                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1561        } else {
1562                color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1563                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1564                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1565                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1566        }
1567
1568        color_fprintf(s->fp, header_color, "]");
1569        fputc(s->null_termination ? '\0' : '\n', s->fp);
1570}
1571
1572void wt_shortstatus_print(struct wt_status *s)
1573{
1574        int i;
1575
1576        if (s->show_branch)
1577                wt_shortstatus_print_tracking(s);
1578
1579        for (i = 0; i < s->change.nr; i++) {
1580                struct wt_status_change_data *d;
1581                struct string_list_item *it;
1582
1583                it = &(s->change.items[i]);
1584                d = it->util;
1585                if (d->stagemask)
1586                        wt_shortstatus_unmerged(it, s);
1587                else
1588                        wt_shortstatus_status(it, s);
1589        }
1590        for (i = 0; i < s->untracked.nr; i++) {
1591                struct string_list_item *it;
1592
1593                it = &(s->untracked.items[i]);
1594                wt_shortstatus_other(it, s, "??");
1595        }
1596        for (i = 0; i < s->ignored.nr; i++) {
1597                struct string_list_item *it;
1598
1599                it = &(s->ignored.items[i]);
1600                wt_shortstatus_other(it, s, "!!");
1601        }
1602}
1603
1604void wt_porcelain_print(struct wt_status *s)
1605{
1606        s->use_color = 0;
1607        s->relative_paths = 0;
1608        s->prefix = NULL;
1609        s->no_gettext = 1;
1610        wt_shortstatus_print(s);
1611}