wt-status.con commit am doc: add a pointer to relevant hooks (0e3d40c)
   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 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 void wt_status_print_unmerged_data(struct wt_status *s,
 249                                          struct string_list_item *it)
 250{
 251        const char *c = color(WT_STATUS_UNMERGED, s);
 252        struct wt_status_change_data *d = it->util;
 253        struct strbuf onebuf = STRBUF_INIT;
 254        const char *one, *how = _("bug");
 255
 256        one = quote_path(it->string, s->prefix, &onebuf);
 257        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 258        switch (d->stagemask) {
 259        case 1: how = _("both deleted:"); break;
 260        case 2: how = _("added by us:"); break;
 261        case 3: how = _("deleted by them:"); break;
 262        case 4: how = _("added by them:"); break;
 263        case 5: how = _("deleted by us:"); break;
 264        case 6: how = _("both added:"); break;
 265        case 7: how = _("both modified:"); break;
 266        }
 267        status_printf_more(s, c, "%-20s%s\n", how, one);
 268        strbuf_release(&onebuf);
 269}
 270
 271static const char *wt_status_diff_status_string(int status)
 272{
 273        switch (status) {
 274        case DIFF_STATUS_ADDED:
 275                return _("new file");
 276        case DIFF_STATUS_COPIED:
 277                return _("copied");
 278        case DIFF_STATUS_DELETED:
 279                return _("deleted");
 280        case DIFF_STATUS_MODIFIED:
 281                return _("modified");
 282        case DIFF_STATUS_RENAMED:
 283                return _("renamed");
 284        case DIFF_STATUS_TYPE_CHANGED:
 285                return _("typechange");
 286        case DIFF_STATUS_UNKNOWN:
 287                return _("unknown");
 288        case DIFF_STATUS_UNMERGED:
 289                return _("unmerged");
 290        default:
 291                return NULL;
 292        }
 293}
 294
 295static void wt_status_print_change_data(struct wt_status *s,
 296                                        int change_type,
 297                                        struct string_list_item *it)
 298{
 299        struct wt_status_change_data *d = it->util;
 300        const char *c = color(change_type, s);
 301        int status;
 302        char *one_name;
 303        char *two_name;
 304        const char *one, *two;
 305        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 306        struct strbuf extra = STRBUF_INIT;
 307        static char *padding;
 308        const char *what;
 309        int len;
 310
 311        if (!padding) {
 312                int width = 0;
 313                /* If DIFF_STATUS_* uses outside this range, we're in trouble */
 314                for (status = 'A'; status <= 'Z'; status++) {
 315                        what = wt_status_diff_status_string(status);
 316                        len = what ? strlen(what) : 0;
 317                        if (len > width)
 318                                width = len;
 319                }
 320                width += 2;     /* colon and a space */
 321                padding = xmallocz(width);
 322                memset(padding, ' ', width);
 323        }
 324
 325        one_name = two_name = it->string;
 326        switch (change_type) {
 327        case WT_STATUS_UPDATED:
 328                status = d->index_status;
 329                if (d->head_path)
 330                        one_name = d->head_path;
 331                break;
 332        case WT_STATUS_CHANGED:
 333                if (d->new_submodule_commits || d->dirty_submodule) {
 334                        strbuf_addstr(&extra, " (");
 335                        if (d->new_submodule_commits)
 336                                strbuf_addf(&extra, _("new commits, "));
 337                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 338                                strbuf_addf(&extra, _("modified content, "));
 339                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 340                                strbuf_addf(&extra, _("untracked content, "));
 341                        strbuf_setlen(&extra, extra.len - 2);
 342                        strbuf_addch(&extra, ')');
 343                }
 344                status = d->worktree_status;
 345                break;
 346        default:
 347                die("BUG: unhandled change_type %d in wt_status_print_change_data",
 348                    change_type);
 349        }
 350
 351        one = quote_path(one_name, s->prefix, &onebuf);
 352        two = quote_path(two_name, s->prefix, &twobuf);
 353
 354        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 355        what = wt_status_diff_status_string(status);
 356        if (!what)
 357                die(_("bug: unhandled diff status %c"), status);
 358        /* 1 for colon, which is not part of "what" */
 359        len = strlen(padding) - (utf8_strwidth(what) + 1);
 360        assert(len >= 0);
 361        if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 362                status_printf_more(s, c, "%s:%.*s%s -> %s",
 363                                   what, len, padding, one, two);
 364        else
 365                status_printf_more(s, c, "%s:%.*s%s",
 366                                   what, len, padding, one);
 367        if (extra.len) {
 368                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 369                strbuf_release(&extra);
 370        }
 371        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 372        strbuf_release(&onebuf);
 373        strbuf_release(&twobuf);
 374}
 375
 376static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 377                                         struct diff_options *options,
 378                                         void *data)
 379{
 380        struct wt_status *s = data;
 381        int i;
 382
 383        if (!q->nr)
 384                return;
 385        s->workdir_dirty = 1;
 386        for (i = 0; i < q->nr; i++) {
 387                struct diff_filepair *p;
 388                struct string_list_item *it;
 389                struct wt_status_change_data *d;
 390
 391                p = q->queue[i];
 392                it = string_list_insert(&s->change, p->one->path);
 393                d = it->util;
 394                if (!d) {
 395                        d = xcalloc(1, sizeof(*d));
 396                        it->util = d;
 397                }
 398                if (!d->worktree_status)
 399                        d->worktree_status = p->status;
 400                d->dirty_submodule = p->two->dirty_submodule;
 401                if (S_ISGITLINK(p->two->mode))
 402                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 403        }
 404}
 405
 406static int unmerged_mask(const char *path)
 407{
 408        int pos, mask;
 409        const struct cache_entry *ce;
 410
 411        pos = cache_name_pos(path, strlen(path));
 412        if (0 <= pos)
 413                return 0;
 414
 415        mask = 0;
 416        pos = -pos-1;
 417        while (pos < active_nr) {
 418                ce = active_cache[pos++];
 419                if (strcmp(ce->name, path) || !ce_stage(ce))
 420                        break;
 421                mask |= (1 << (ce_stage(ce) - 1));
 422        }
 423        return mask;
 424}
 425
 426static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 427                                         struct diff_options *options,
 428                                         void *data)
 429{
 430        struct wt_status *s = data;
 431        int i;
 432
 433        for (i = 0; i < q->nr; i++) {
 434                struct diff_filepair *p;
 435                struct string_list_item *it;
 436                struct wt_status_change_data *d;
 437
 438                p = q->queue[i];
 439                it = string_list_insert(&s->change, p->two->path);
 440                d = it->util;
 441                if (!d) {
 442                        d = xcalloc(1, sizeof(*d));
 443                        it->util = d;
 444                }
 445                if (!d->index_status)
 446                        d->index_status = p->status;
 447                switch (p->status) {
 448                case DIFF_STATUS_COPIED:
 449                case DIFF_STATUS_RENAMED:
 450                        d->head_path = xstrdup(p->one->path);
 451                        break;
 452                case DIFF_STATUS_UNMERGED:
 453                        d->stagemask = unmerged_mask(p->two->path);
 454                        break;
 455                }
 456        }
 457}
 458
 459static void wt_status_collect_changes_worktree(struct wt_status *s)
 460{
 461        struct rev_info rev;
 462
 463        init_revisions(&rev, NULL);
 464        setup_revisions(0, NULL, &rev, NULL);
 465        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 466        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 467        if (!s->show_untracked_files)
 468                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 469        if (s->ignore_submodule_arg) {
 470                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 471                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 472        }
 473        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 474        rev.diffopt.format_callback_data = s;
 475        copy_pathspec(&rev.prune_data, &s->pathspec);
 476        run_diff_files(&rev, 0);
 477}
 478
 479static void wt_status_collect_changes_index(struct wt_status *s)
 480{
 481        struct rev_info rev;
 482        struct setup_revision_opt opt;
 483
 484        init_revisions(&rev, NULL);
 485        memset(&opt, 0, sizeof(opt));
 486        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 487        setup_revisions(0, NULL, &rev, &opt);
 488
 489        if (s->ignore_submodule_arg) {
 490                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 491                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 492        }
 493
 494        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 495        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 496        rev.diffopt.format_callback_data = s;
 497        rev.diffopt.detect_rename = 1;
 498        rev.diffopt.rename_limit = 200;
 499        rev.diffopt.break_opt = 0;
 500        copy_pathspec(&rev.prune_data, &s->pathspec);
 501        run_diff_index(&rev, 1);
 502}
 503
 504static void wt_status_collect_changes_initial(struct wt_status *s)
 505{
 506        int i;
 507
 508        for (i = 0; i < active_nr; i++) {
 509                struct string_list_item *it;
 510                struct wt_status_change_data *d;
 511                const struct cache_entry *ce = active_cache[i];
 512
 513                if (!ce_path_match(ce, &s->pathspec))
 514                        continue;
 515                it = string_list_insert(&s->change, ce->name);
 516                d = it->util;
 517                if (!d) {
 518                        d = xcalloc(1, sizeof(*d));
 519                        it->util = d;
 520                }
 521                if (ce_stage(ce)) {
 522                        d->index_status = DIFF_STATUS_UNMERGED;
 523                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 524                }
 525                else
 526                        d->index_status = DIFF_STATUS_ADDED;
 527        }
 528}
 529
 530static void wt_status_collect_untracked(struct wt_status *s)
 531{
 532        int i;
 533        struct dir_struct dir;
 534        struct timeval t_begin;
 535
 536        if (!s->show_untracked_files)
 537                return;
 538
 539        if (advice_status_u_option)
 540                gettimeofday(&t_begin, NULL);
 541
 542        memset(&dir, 0, sizeof(dir));
 543        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 544                dir.flags |=
 545                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 546        if (s->show_ignored_files)
 547                dir.flags |= DIR_SHOW_IGNORED_TOO;
 548        setup_standard_excludes(&dir);
 549
 550        fill_directory(&dir, &s->pathspec);
 551
 552        for (i = 0; i < dir.nr; i++) {
 553                struct dir_entry *ent = dir.entries[i];
 554                if (cache_name_is_other(ent->name, ent->len) &&
 555                    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 556                        string_list_insert(&s->untracked, ent->name);
 557                free(ent);
 558        }
 559
 560        for (i = 0; i < dir.ignored_nr; i++) {
 561                struct dir_entry *ent = dir.ignored[i];
 562                if (cache_name_is_other(ent->name, ent->len) &&
 563                    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 564                        string_list_insert(&s->ignored, ent->name);
 565                free(ent);
 566        }
 567
 568        free(dir.entries);
 569        free(dir.ignored);
 570        clear_directory(&dir);
 571
 572        if (advice_status_u_option) {
 573                struct timeval t_end;
 574                gettimeofday(&t_end, NULL);
 575                s->untracked_in_ms =
 576                        (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 577                        ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 578        }
 579}
 580
 581void wt_status_collect(struct wt_status *s)
 582{
 583        wt_status_collect_changes_worktree(s);
 584
 585        if (s->is_initial)
 586                wt_status_collect_changes_initial(s);
 587        else
 588                wt_status_collect_changes_index(s);
 589        wt_status_collect_untracked(s);
 590}
 591
 592static void wt_status_print_unmerged(struct wt_status *s)
 593{
 594        int shown_header = 0;
 595        int i;
 596
 597        for (i = 0; i < s->change.nr; i++) {
 598                struct wt_status_change_data *d;
 599                struct string_list_item *it;
 600                it = &(s->change.items[i]);
 601                d = it->util;
 602                if (!d->stagemask)
 603                        continue;
 604                if (!shown_header) {
 605                        wt_status_print_unmerged_header(s);
 606                        shown_header = 1;
 607                }
 608                wt_status_print_unmerged_data(s, it);
 609        }
 610        if (shown_header)
 611                wt_status_print_trailer(s);
 612
 613}
 614
 615static void wt_status_print_updated(struct wt_status *s)
 616{
 617        int shown_header = 0;
 618        int i;
 619
 620        for (i = 0; i < s->change.nr; i++) {
 621                struct wt_status_change_data *d;
 622                struct string_list_item *it;
 623                it = &(s->change.items[i]);
 624                d = it->util;
 625                if (!d->index_status ||
 626                    d->index_status == DIFF_STATUS_UNMERGED)
 627                        continue;
 628                if (!shown_header) {
 629                        wt_status_print_cached_header(s);
 630                        s->commitable = 1;
 631                        shown_header = 1;
 632                }
 633                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 634        }
 635        if (shown_header)
 636                wt_status_print_trailer(s);
 637}
 638
 639/*
 640 * -1 : has delete
 641 *  0 : no change
 642 *  1 : some change but no delete
 643 */
 644static int wt_status_check_worktree_changes(struct wt_status *s,
 645                                             int *dirty_submodules)
 646{
 647        int i;
 648        int changes = 0;
 649
 650        *dirty_submodules = 0;
 651
 652        for (i = 0; i < s->change.nr; i++) {
 653                struct wt_status_change_data *d;
 654                d = s->change.items[i].util;
 655                if (!d->worktree_status ||
 656                    d->worktree_status == DIFF_STATUS_UNMERGED)
 657                        continue;
 658                if (!changes)
 659                        changes = 1;
 660                if (d->dirty_submodule)
 661                        *dirty_submodules = 1;
 662                if (d->worktree_status == DIFF_STATUS_DELETED)
 663                        changes = -1;
 664        }
 665        return changes;
 666}
 667
 668static void wt_status_print_changed(struct wt_status *s)
 669{
 670        int i, dirty_submodules;
 671        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 672
 673        if (!worktree_changes)
 674                return;
 675
 676        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 677
 678        for (i = 0; i < s->change.nr; i++) {
 679                struct wt_status_change_data *d;
 680                struct string_list_item *it;
 681                it = &(s->change.items[i]);
 682                d = it->util;
 683                if (!d->worktree_status ||
 684                    d->worktree_status == DIFF_STATUS_UNMERGED)
 685                        continue;
 686                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 687        }
 688        wt_status_print_trailer(s);
 689}
 690
 691static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 692{
 693        struct child_process sm_summary;
 694        char summary_limit[64];
 695        char index[PATH_MAX];
 696        const char *env[] = { NULL, NULL };
 697        struct argv_array argv = ARGV_ARRAY_INIT;
 698        struct strbuf cmd_stdout = STRBUF_INIT;
 699        struct strbuf summary = STRBUF_INIT;
 700        char *summary_content;
 701        size_t len;
 702
 703        sprintf(summary_limit, "%d", s->submodule_summary);
 704        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 705
 706        env[0] = index;
 707        argv_array_push(&argv, "submodule");
 708        argv_array_push(&argv, "summary");
 709        argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 710        argv_array_push(&argv, "--for-status");
 711        argv_array_push(&argv, "--summary-limit");
 712        argv_array_push(&argv, summary_limit);
 713        if (!uncommitted)
 714                argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 715
 716        memset(&sm_summary, 0, sizeof(sm_summary));
 717        sm_summary.argv = argv.argv;
 718        sm_summary.env = env;
 719        sm_summary.git_cmd = 1;
 720        sm_summary.no_stdin = 1;
 721        fflush(s->fp);
 722        sm_summary.out = -1;
 723
 724        run_command(&sm_summary);
 725        argv_array_clear(&argv);
 726
 727        len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 728
 729        /* prepend header, only if there's an actual output */
 730        if (len) {
 731                if (uncommitted)
 732                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 733                else
 734                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 735                strbuf_addstr(&summary, "\n\n");
 736        }
 737        strbuf_addbuf(&summary, &cmd_stdout);
 738        strbuf_release(&cmd_stdout);
 739
 740        if (s->display_comment_prefix) {
 741                summary_content = strbuf_detach(&summary, &len);
 742                strbuf_add_commented_lines(&summary, summary_content, len);
 743                free(summary_content);
 744        }
 745
 746        fputs(summary.buf, s->fp);
 747        strbuf_release(&summary);
 748}
 749
 750static void wt_status_print_other(struct wt_status *s,
 751                                  struct string_list *l,
 752                                  const char *what,
 753                                  const char *how)
 754{
 755        int i;
 756        struct strbuf buf = STRBUF_INIT;
 757        static struct string_list output = STRING_LIST_INIT_DUP;
 758        struct column_options copts;
 759
 760        if (!l->nr)
 761                return;
 762
 763        wt_status_print_other_header(s, what, how);
 764
 765        for (i = 0; i < l->nr; i++) {
 766                struct string_list_item *it;
 767                const char *path;
 768                it = &(l->items[i]);
 769                path = quote_path(it->string, s->prefix, &buf);
 770                if (column_active(s->colopts)) {
 771                        string_list_append(&output, path);
 772                        continue;
 773                }
 774                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 775                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 776                                   "%s\n", path);
 777        }
 778
 779        strbuf_release(&buf);
 780        if (!column_active(s->colopts))
 781                goto conclude;
 782
 783        strbuf_addf(&buf, "%s%s\t%s",
 784                    color(WT_STATUS_HEADER, s),
 785                    s->display_comment_prefix ? "#" : "",
 786                    color(WT_STATUS_UNTRACKED, s));
 787        memset(&copts, 0, sizeof(copts));
 788        copts.padding = 1;
 789        copts.indent = buf.buf;
 790        if (want_color(s->use_color))
 791                copts.nl = GIT_COLOR_RESET "\n";
 792        print_columns(&output, s->colopts, &copts);
 793        string_list_clear(&output, 0);
 794        strbuf_release(&buf);
 795conclude:
 796        status_printf_ln(s, GIT_COLOR_NORMAL, "");
 797}
 798
 799void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 800{
 801        const char *p;
 802        struct strbuf pattern = STRBUF_INIT;
 803
 804        strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
 805        p = strstr(buf->buf, pattern.buf);
 806        if (p && (p == buf->buf || p[-1] == '\n'))
 807                strbuf_setlen(buf, p - buf->buf);
 808        strbuf_release(&pattern);
 809}
 810
 811static void wt_status_print_verbose(struct wt_status *s)
 812{
 813        struct rev_info rev;
 814        struct setup_revision_opt opt;
 815
 816        init_revisions(&rev, NULL);
 817        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 818
 819        memset(&opt, 0, sizeof(opt));
 820        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 821        setup_revisions(0, NULL, &rev, &opt);
 822
 823        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 824        rev.diffopt.detect_rename = 1;
 825        rev.diffopt.file = s->fp;
 826        rev.diffopt.close_file = 0;
 827        /*
 828         * If we're not going to stdout, then we definitely don't
 829         * want color, since we are going to the commit message
 830         * file (and even the "auto" setting won't work, since it
 831         * will have checked isatty on stdout). But we then do want
 832         * to insert the scissor line here to reliably remove the
 833         * diff before committing.
 834         */
 835        if (s->fp != stdout) {
 836                const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 837                struct strbuf buf = STRBUF_INIT;
 838
 839                rev.diffopt.use_color = 0;
 840                fprintf(s->fp, "%c %s", comment_line_char, cut_line);
 841                strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 842                fputs(buf.buf, s->fp);
 843                strbuf_release(&buf);
 844        }
 845        run_diff_index(&rev, 1);
 846}
 847
 848static void wt_status_print_tracking(struct wt_status *s)
 849{
 850        struct strbuf sb = STRBUF_INIT;
 851        const char *cp, *ep;
 852        struct branch *branch;
 853        char comment_line_string[3];
 854        int i;
 855
 856        assert(s->branch && !s->is_initial);
 857        if (!starts_with(s->branch, "refs/heads/"))
 858                return;
 859        branch = branch_get(s->branch + 11);
 860        if (!format_tracking_info(branch, &sb))
 861                return;
 862
 863        i = 0;
 864        if (s->display_comment_prefix) {
 865                comment_line_string[i++] = comment_line_char;
 866                comment_line_string[i++] = ' ';
 867        }
 868        comment_line_string[i] = '\0';
 869
 870        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 871                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 872                                 "%s%.*s", comment_line_string,
 873                                 (int)(ep - cp), cp);
 874        if (s->display_comment_prefix)
 875                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 876                                 comment_line_char);
 877        else
 878                fprintf_ln(s->fp, "");
 879}
 880
 881static int has_unmerged(struct wt_status *s)
 882{
 883        int i;
 884
 885        for (i = 0; i < s->change.nr; i++) {
 886                struct wt_status_change_data *d;
 887                d = s->change.items[i].util;
 888                if (d->stagemask)
 889                        return 1;
 890        }
 891        return 0;
 892}
 893
 894static void show_merge_in_progress(struct wt_status *s,
 895                                struct wt_status_state *state,
 896                                const char *color)
 897{
 898        if (has_unmerged(s)) {
 899                status_printf_ln(s, color, _("You have unmerged paths."));
 900                if (s->hints)
 901                        status_printf_ln(s, color,
 902                                _("  (fix conflicts and run \"git commit\")"));
 903        } else {
 904                status_printf_ln(s, color,
 905                        _("All conflicts fixed but you are still merging."));
 906                if (s->hints)
 907                        status_printf_ln(s, color,
 908                                _("  (use \"git commit\" to conclude merge)"));
 909        }
 910        wt_status_print_trailer(s);
 911}
 912
 913static void show_am_in_progress(struct wt_status *s,
 914                                struct wt_status_state *state,
 915                                const char *color)
 916{
 917        status_printf_ln(s, color,
 918                _("You are in the middle of an am session."));
 919        if (state->am_empty_patch)
 920                status_printf_ln(s, color,
 921                        _("The current patch is empty."));
 922        if (s->hints) {
 923                if (!state->am_empty_patch)
 924                        status_printf_ln(s, color,
 925                                _("  (fix conflicts and then run \"git am --continue\")"));
 926                status_printf_ln(s, color,
 927                        _("  (use \"git am --skip\" to skip this patch)"));
 928                status_printf_ln(s, color,
 929                        _("  (use \"git am --abort\" to restore the original branch)"));
 930        }
 931        wt_status_print_trailer(s);
 932}
 933
 934static char *read_line_from_git_path(const char *filename)
 935{
 936        struct strbuf buf = STRBUF_INIT;
 937        FILE *fp = fopen(git_path("%s", filename), "r");
 938        if (!fp) {
 939                strbuf_release(&buf);
 940                return NULL;
 941        }
 942        strbuf_getline(&buf, fp, '\n');
 943        if (!fclose(fp)) {
 944                return strbuf_detach(&buf, NULL);
 945        } else {
 946                strbuf_release(&buf);
 947                return NULL;
 948        }
 949}
 950
 951static int split_commit_in_progress(struct wt_status *s)
 952{
 953        int split_in_progress = 0;
 954        char *head = read_line_from_git_path("HEAD");
 955        char *orig_head = read_line_from_git_path("ORIG_HEAD");
 956        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 957        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 958
 959        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 960            !s->branch || strcmp(s->branch, "HEAD"))
 961                return split_in_progress;
 962
 963        if (!strcmp(rebase_amend, rebase_orig_head)) {
 964                if (strcmp(head, rebase_amend))
 965                        split_in_progress = 1;
 966        } else if (strcmp(orig_head, rebase_orig_head)) {
 967                split_in_progress = 1;
 968        }
 969
 970        if (!s->amend && !s->nowarn && !s->workdir_dirty)
 971                split_in_progress = 0;
 972
 973        free(head);
 974        free(orig_head);
 975        free(rebase_amend);
 976        free(rebase_orig_head);
 977        return split_in_progress;
 978}
 979
 980static void show_rebase_in_progress(struct wt_status *s,
 981                                struct wt_status_state *state,
 982                                const char *color)
 983{
 984        struct stat st;
 985
 986        if (has_unmerged(s)) {
 987                if (state->branch)
 988                        status_printf_ln(s, color,
 989                                         _("You are currently rebasing branch '%s' on '%s'."),
 990                                         state->branch,
 991                                         state->onto);
 992                else
 993                        status_printf_ln(s, color,
 994                                         _("You are currently rebasing."));
 995                if (s->hints) {
 996                        status_printf_ln(s, color,
 997                                _("  (fix conflicts and then run \"git rebase --continue\")"));
 998                        status_printf_ln(s, color,
 999                                _("  (use \"git rebase --skip\" to skip this patch)"));
1000                        status_printf_ln(s, color,
1001                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1002                }
1003        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
1004                if (state->branch)
1005                        status_printf_ln(s, color,
1006                                         _("You are currently rebasing branch '%s' on '%s'."),
1007                                         state->branch,
1008                                         state->onto);
1009                else
1010                        status_printf_ln(s, color,
1011                                         _("You are currently rebasing."));
1012                if (s->hints)
1013                        status_printf_ln(s, color,
1014                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1015        } else if (split_commit_in_progress(s)) {
1016                if (state->branch)
1017                        status_printf_ln(s, color,
1018                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1019                                         state->branch,
1020                                         state->onto);
1021                else
1022                        status_printf_ln(s, color,
1023                                         _("You are currently splitting a commit during a rebase."));
1024                if (s->hints)
1025                        status_printf_ln(s, color,
1026                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1027        } else {
1028                if (state->branch)
1029                        status_printf_ln(s, color,
1030                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1031                                         state->branch,
1032                                         state->onto);
1033                else
1034                        status_printf_ln(s, color,
1035                                         _("You are currently editing a commit during a rebase."));
1036                if (s->hints && !s->amend) {
1037                        status_printf_ln(s, color,
1038                                _("  (use \"git commit --amend\" to amend the current commit)"));
1039                        status_printf_ln(s, color,
1040                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1041                }
1042        }
1043        wt_status_print_trailer(s);
1044}
1045
1046static void show_cherry_pick_in_progress(struct wt_status *s,
1047                                        struct wt_status_state *state,
1048                                        const char *color)
1049{
1050        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1051                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1052        if (s->hints) {
1053                if (has_unmerged(s))
1054                        status_printf_ln(s, color,
1055                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1056                else
1057                        status_printf_ln(s, color,
1058                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1059                status_printf_ln(s, color,
1060                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1061        }
1062        wt_status_print_trailer(s);
1063}
1064
1065static void show_revert_in_progress(struct wt_status *s,
1066                                        struct wt_status_state *state,
1067                                        const char *color)
1068{
1069        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1070                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1071        if (s->hints) {
1072                if (has_unmerged(s))
1073                        status_printf_ln(s, color,
1074                                _("  (fix conflicts and run \"git revert --continue\")"));
1075                else
1076                        status_printf_ln(s, color,
1077                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1078                status_printf_ln(s, color,
1079                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1080        }
1081        wt_status_print_trailer(s);
1082}
1083
1084static void show_bisect_in_progress(struct wt_status *s,
1085                                struct wt_status_state *state,
1086                                const char *color)
1087{
1088        if (state->branch)
1089                status_printf_ln(s, color,
1090                                 _("You are currently bisecting, started from branch '%s'."),
1091                                 state->branch);
1092        else
1093                status_printf_ln(s, color,
1094                                 _("You are currently bisecting."));
1095        if (s->hints)
1096                status_printf_ln(s, color,
1097                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1098        wt_status_print_trailer(s);
1099}
1100
1101/*
1102 * Extract branch information from rebase/bisect
1103 */
1104static char *read_and_strip_branch(const char *path)
1105{
1106        struct strbuf sb = STRBUF_INIT;
1107        unsigned char sha1[20];
1108
1109        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1110                goto got_nothing;
1111
1112        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1113                strbuf_setlen(&sb, sb.len - 1);
1114        if (!sb.len)
1115                goto got_nothing;
1116        if (starts_with(sb.buf, "refs/heads/"))
1117                strbuf_remove(&sb,0, strlen("refs/heads/"));
1118        else if (starts_with(sb.buf, "refs/"))
1119                ;
1120        else if (!get_sha1_hex(sb.buf, sha1)) {
1121                const char *abbrev;
1122                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1123                strbuf_reset(&sb);
1124                strbuf_addstr(&sb, abbrev);
1125        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1126                goto got_nothing;
1127        else                    /* bisect */
1128                ;
1129        return strbuf_detach(&sb, NULL);
1130
1131got_nothing:
1132        strbuf_release(&sb);
1133        return NULL;
1134}
1135
1136struct grab_1st_switch_cbdata {
1137        struct strbuf buf;
1138        unsigned char nsha1[20];
1139};
1140
1141static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1142                           const char *email, unsigned long timestamp, int tz,
1143                           const char *message, void *cb_data)
1144{
1145        struct grab_1st_switch_cbdata *cb = cb_data;
1146        const char *target = NULL, *end;
1147
1148        if (!starts_with(message, "checkout: moving from "))
1149                return 0;
1150        message += strlen("checkout: moving from ");
1151        target = strstr(message, " to ");
1152        if (!target)
1153                return 0;
1154        target += strlen(" to ");
1155        strbuf_reset(&cb->buf);
1156        hashcpy(cb->nsha1, nsha1);
1157        for (end = target; *end && *end != '\n'; end++)
1158                ;
1159        strbuf_add(&cb->buf, target, end - target);
1160        return 1;
1161}
1162
1163static void wt_status_get_detached_from(struct wt_status_state *state)
1164{
1165        struct grab_1st_switch_cbdata cb;
1166        struct commit *commit;
1167        unsigned char sha1[20];
1168        char *ref = NULL;
1169
1170        strbuf_init(&cb.buf, 0);
1171        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1172                strbuf_release(&cb.buf);
1173                return;
1174        }
1175
1176        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1177            /* sha1 is a commit? match without further lookup */
1178            (!hashcmp(cb.nsha1, sha1) ||
1179             /* perhaps sha1 is a tag, try to dereference to a commit */
1180             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1181              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1182                int ofs;
1183                if (starts_with(ref, "refs/tags/"))
1184                        ofs = strlen("refs/tags/");
1185                else if (starts_with(ref, "refs/remotes/"))
1186                        ofs = strlen("refs/remotes/");
1187                else
1188                        ofs = 0;
1189                state->detached_from = xstrdup(ref + ofs);
1190        } else
1191                state->detached_from =
1192                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1193        hashcpy(state->detached_sha1, cb.nsha1);
1194
1195        free(ref);
1196        strbuf_release(&cb.buf);
1197}
1198
1199void wt_status_get_state(struct wt_status_state *state,
1200                         int get_detached_from)
1201{
1202        struct stat st;
1203        unsigned char sha1[20];
1204
1205        if (!stat(git_path("MERGE_HEAD"), &st)) {
1206                state->merge_in_progress = 1;
1207        } else if (!stat(git_path("rebase-apply"), &st)) {
1208                if (!stat(git_path("rebase-apply/applying"), &st)) {
1209                        state->am_in_progress = 1;
1210                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1211                                state->am_empty_patch = 1;
1212                } else {
1213                        state->rebase_in_progress = 1;
1214                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1215                        state->onto = read_and_strip_branch("rebase-apply/onto");
1216                }
1217        } else if (!stat(git_path("rebase-merge"), &st)) {
1218                if (!stat(git_path("rebase-merge/interactive"), &st))
1219                        state->rebase_interactive_in_progress = 1;
1220                else
1221                        state->rebase_in_progress = 1;
1222                state->branch = read_and_strip_branch("rebase-merge/head-name");
1223                state->onto = read_and_strip_branch("rebase-merge/onto");
1224        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1225                        !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1226                state->cherry_pick_in_progress = 1;
1227                hashcpy(state->cherry_pick_head_sha1, sha1);
1228        }
1229        if (!stat(git_path("BISECT_LOG"), &st)) {
1230                state->bisect_in_progress = 1;
1231                state->branch = read_and_strip_branch("BISECT_START");
1232        }
1233        if (!stat(git_path("REVERT_HEAD"), &st) &&
1234            !get_sha1("REVERT_HEAD", sha1)) {
1235                state->revert_in_progress = 1;
1236                hashcpy(state->revert_head_sha1, sha1);
1237        }
1238
1239        if (get_detached_from)
1240                wt_status_get_detached_from(state);
1241}
1242
1243static void wt_status_print_state(struct wt_status *s,
1244                                  struct wt_status_state *state)
1245{
1246        const char *state_color = color(WT_STATUS_HEADER, s);
1247        if (state->merge_in_progress)
1248                show_merge_in_progress(s, state, state_color);
1249        else if (state->am_in_progress)
1250                show_am_in_progress(s, state, state_color);
1251        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1252                show_rebase_in_progress(s, state, state_color);
1253        else if (state->cherry_pick_in_progress)
1254                show_cherry_pick_in_progress(s, state, state_color);
1255        else if (state->revert_in_progress)
1256                show_revert_in_progress(s, state, state_color);
1257        if (state->bisect_in_progress)
1258                show_bisect_in_progress(s, state, state_color);
1259}
1260
1261void wt_status_print(struct wt_status *s)
1262{
1263        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1264        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1265        struct wt_status_state state;
1266
1267        memset(&state, 0, sizeof(state));
1268        wt_status_get_state(&state,
1269                            s->branch && !strcmp(s->branch, "HEAD"));
1270
1271        if (s->branch) {
1272                const char *on_what = _("On branch ");
1273                const char *branch_name = s->branch;
1274                if (starts_with(branch_name, "refs/heads/"))
1275                        branch_name += 11;
1276                else if (!strcmp(branch_name, "HEAD")) {
1277                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1278                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1279                                on_what = _("rebase in progress; onto ");
1280                                branch_name = state.onto;
1281                        } else if (state.detached_from) {
1282                                unsigned char sha1[20];
1283                                branch_name = state.detached_from;
1284                                if (!get_sha1("HEAD", sha1) &&
1285                                    !hashcmp(sha1, state.detached_sha1))
1286                                        on_what = _("HEAD detached at ");
1287                                else
1288                                        on_what = _("HEAD detached from ");
1289                        } else {
1290                                branch_name = "";
1291                                on_what = _("Not currently on any branch.");
1292                        }
1293                }
1294                status_printf(s, color(WT_STATUS_HEADER, s), "");
1295                status_printf_more(s, branch_status_color, "%s", on_what);
1296                status_printf_more(s, branch_color, "%s\n", branch_name);
1297                if (!s->is_initial)
1298                        wt_status_print_tracking(s);
1299        }
1300
1301        wt_status_print_state(s, &state);
1302        free(state.branch);
1303        free(state.onto);
1304        free(state.detached_from);
1305
1306        if (s->is_initial) {
1307                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1308                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1309                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1310        }
1311
1312        wt_status_print_updated(s);
1313        wt_status_print_unmerged(s);
1314        wt_status_print_changed(s);
1315        if (s->submodule_summary &&
1316            (!s->ignore_submodule_arg ||
1317             strcmp(s->ignore_submodule_arg, "all"))) {
1318                wt_status_print_submodule_summary(s, 0);  /* staged */
1319                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1320        }
1321        if (s->show_untracked_files) {
1322                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1323                if (s->show_ignored_files)
1324                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1325                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1326                        status_printf_ln(s, GIT_COLOR_NORMAL, "");
1327                        status_printf_ln(s, GIT_COLOR_NORMAL,
1328                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1329                                           "may speed it up, but you have to be careful not to forget to add\n"
1330                                           "new files yourself (see 'git help status')."),
1331                                         s->untracked_in_ms / 1000.0);
1332                }
1333        } else if (s->commitable)
1334                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1335                        s->hints
1336                        ? _(" (use -u option to show untracked files)") : "");
1337
1338        if (s->verbose)
1339                wt_status_print_verbose(s);
1340        if (!s->commitable) {
1341                if (s->amend)
1342                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1343                else if (s->nowarn)
1344                        ; /* nothing */
1345                else if (s->workdir_dirty) {
1346                        if (s->hints)
1347                                printf(_("no changes added to commit "
1348                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1349                        else
1350                                printf(_("no changes added to commit\n"));
1351                } else if (s->untracked.nr) {
1352                        if (s->hints)
1353                                printf(_("nothing added to commit but untracked files "
1354                                         "present (use \"git add\" to track)\n"));
1355                        else
1356                                printf(_("nothing added to commit but untracked files present\n"));
1357                } else if (s->is_initial) {
1358                        if (s->hints)
1359                                printf(_("nothing to commit (create/copy files "
1360                                         "and use \"git add\" to track)\n"));
1361                        else
1362                                printf(_("nothing to commit\n"));
1363                } else if (!s->show_untracked_files) {
1364                        if (s->hints)
1365                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1366                        else
1367                                printf(_("nothing to commit\n"));
1368                } else
1369                        printf(_("nothing to commit, working directory clean\n"));
1370        }
1371}
1372
1373static void wt_shortstatus_unmerged(struct string_list_item *it,
1374                           struct wt_status *s)
1375{
1376        struct wt_status_change_data *d = it->util;
1377        const char *how = "??";
1378
1379        switch (d->stagemask) {
1380        case 1: how = "DD"; break; /* both deleted */
1381        case 2: how = "AU"; break; /* added by us */
1382        case 3: how = "UD"; break; /* deleted by them */
1383        case 4: how = "UA"; break; /* added by them */
1384        case 5: how = "DU"; break; /* deleted by us */
1385        case 6: how = "AA"; break; /* both added */
1386        case 7: how = "UU"; break; /* both modified */
1387        }
1388        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1389        if (s->null_termination) {
1390                fprintf(stdout, " %s%c", it->string, 0);
1391        } else {
1392                struct strbuf onebuf = STRBUF_INIT;
1393                const char *one;
1394                one = quote_path(it->string, s->prefix, &onebuf);
1395                printf(" %s\n", one);
1396                strbuf_release(&onebuf);
1397        }
1398}
1399
1400static void wt_shortstatus_status(struct string_list_item *it,
1401                         struct wt_status *s)
1402{
1403        struct wt_status_change_data *d = it->util;
1404
1405        if (d->index_status)
1406                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1407        else
1408                putchar(' ');
1409        if (d->worktree_status)
1410                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1411        else
1412                putchar(' ');
1413        putchar(' ');
1414        if (s->null_termination) {
1415                fprintf(stdout, "%s%c", it->string, 0);
1416                if (d->head_path)
1417                        fprintf(stdout, "%s%c", d->head_path, 0);
1418        } else {
1419                struct strbuf onebuf = STRBUF_INIT;
1420                const char *one;
1421                if (d->head_path) {
1422                        one = quote_path(d->head_path, s->prefix, &onebuf);
1423                        if (*one != '"' && strchr(one, ' ') != NULL) {
1424                                putchar('"');
1425                                strbuf_addch(&onebuf, '"');
1426                                one = onebuf.buf;
1427                        }
1428                        printf("%s -> ", one);
1429                        strbuf_release(&onebuf);
1430                }
1431                one = quote_path(it->string, s->prefix, &onebuf);
1432                if (*one != '"' && strchr(one, ' ') != NULL) {
1433                        putchar('"');
1434                        strbuf_addch(&onebuf, '"');
1435                        one = onebuf.buf;
1436                }
1437                printf("%s\n", one);
1438                strbuf_release(&onebuf);
1439        }
1440}
1441
1442static void wt_shortstatus_other(struct string_list_item *it,
1443                                 struct wt_status *s, const char *sign)
1444{
1445        if (s->null_termination) {
1446                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1447        } else {
1448                struct strbuf onebuf = STRBUF_INIT;
1449                const char *one;
1450                one = quote_path(it->string, s->prefix, &onebuf);
1451                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1452                printf(" %s\n", one);
1453                strbuf_release(&onebuf);
1454        }
1455}
1456
1457static void wt_shortstatus_print_tracking(struct wt_status *s)
1458{
1459        struct branch *branch;
1460        const char *header_color = color(WT_STATUS_HEADER, s);
1461        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1462        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1463
1464        const char *base;
1465        const char *branch_name;
1466        int num_ours, num_theirs;
1467        int upstream_is_gone = 0;
1468
1469        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1470
1471        if (!s->branch)
1472                return;
1473        branch_name = s->branch;
1474
1475        if (starts_with(branch_name, "refs/heads/"))
1476                branch_name += 11;
1477        else if (!strcmp(branch_name, "HEAD")) {
1478                branch_name = _("HEAD (no branch)");
1479                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1480        }
1481
1482        branch = branch_get(s->branch + 11);
1483        if (s->is_initial)
1484                color_fprintf(s->fp, header_color, _("Initial commit on "));
1485
1486        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1487
1488        switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1489        case 0:
1490                /* no base */
1491                fputc(s->null_termination ? '\0' : '\n', s->fp);
1492                return;
1493        case -1:
1494                /* with "gone" base */
1495                upstream_is_gone = 1;
1496                break;
1497        default:
1498                /* with base */
1499                break;
1500        }
1501
1502        base = branch->merge[0]->dst;
1503        base = shorten_unambiguous_ref(base, 0);
1504        color_fprintf(s->fp, header_color, "...");
1505        color_fprintf(s->fp, branch_color_remote, "%s", base);
1506
1507        if (!upstream_is_gone && !num_ours && !num_theirs) {
1508                fputc(s->null_termination ? '\0' : '\n', s->fp);
1509                return;
1510        }
1511
1512        color_fprintf(s->fp, header_color, " [");
1513        if (upstream_is_gone) {
1514                color_fprintf(s->fp, header_color, _("gone"));
1515        } else if (!num_ours) {
1516                color_fprintf(s->fp, header_color, _("behind "));
1517                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1518        } else if (!num_theirs) {
1519                color_fprintf(s->fp, header_color, _("ahead "));
1520                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1521        } else {
1522                color_fprintf(s->fp, header_color, _("ahead "));
1523                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1524                color_fprintf(s->fp, header_color, _(", behind "));
1525                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1526        }
1527
1528        color_fprintf(s->fp, header_color, "]");
1529        fputc(s->null_termination ? '\0' : '\n', s->fp);
1530}
1531
1532void wt_shortstatus_print(struct wt_status *s)
1533{
1534        int i;
1535
1536        if (s->show_branch)
1537                wt_shortstatus_print_tracking(s);
1538
1539        for (i = 0; i < s->change.nr; i++) {
1540                struct wt_status_change_data *d;
1541                struct string_list_item *it;
1542
1543                it = &(s->change.items[i]);
1544                d = it->util;
1545                if (d->stagemask)
1546                        wt_shortstatus_unmerged(it, s);
1547                else
1548                        wt_shortstatus_status(it, s);
1549        }
1550        for (i = 0; i < s->untracked.nr; i++) {
1551                struct string_list_item *it;
1552
1553                it = &(s->untracked.items[i]);
1554                wt_shortstatus_other(it, s, "??");
1555        }
1556        for (i = 0; i < s->ignored.nr; i++) {
1557                struct string_list_item *it;
1558
1559                it = &(s->ignored.items[i]);
1560                wt_shortstatus_other(it, s, "!!");
1561        }
1562}
1563
1564void wt_porcelain_print(struct wt_status *s)
1565{
1566        s->use_color = 0;
1567        s->relative_paths = 0;
1568        s->prefix = NULL;
1569        wt_shortstatus_print(s);
1570}