wt-status.con commit t5520: test pulling an octopus into an unborn branch (7ad39a2)
   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", 0, sha1, 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, "%s", "");
 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, "%s", "");
 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, "%s", "");
 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, "%s", "");
 239}
 240
 241static void wt_status_print_trailer(struct wt_status *s)
 242{
 243        status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 244}
 245
 246#define quote_path quote_path_relative
 247
 248static const char *wt_status_unmerged_status_string(int stagemask)
 249{
 250        switch (stagemask) {
 251        case 1:
 252                return _("both deleted:");
 253        case 2:
 254                return _("added by us:");
 255        case 3:
 256                return _("deleted by them:");
 257        case 4:
 258                return _("added by them:");
 259        case 5:
 260                return _("deleted by us:");
 261        case 6:
 262                return _("both added:");
 263        case 7:
 264                return _("both modified:");
 265        default:
 266                die(_("bug: unhandled unmerged status %x"), stagemask);
 267        }
 268}
 269
 270static const char *wt_status_diff_status_string(int status)
 271{
 272        switch (status) {
 273        case DIFF_STATUS_ADDED:
 274                return _("new file:");
 275        case DIFF_STATUS_COPIED:
 276                return _("copied:");
 277        case DIFF_STATUS_DELETED:
 278                return _("deleted:");
 279        case DIFF_STATUS_MODIFIED:
 280                return _("modified:");
 281        case DIFF_STATUS_RENAMED:
 282                return _("renamed:");
 283        case DIFF_STATUS_TYPE_CHANGED:
 284                return _("typechange:");
 285        case DIFF_STATUS_UNKNOWN:
 286                return _("unknown:");
 287        case DIFF_STATUS_UNMERGED:
 288                return _("unmerged:");
 289        default:
 290                return NULL;
 291        }
 292}
 293
 294static int maxwidth(const char *(*label)(int), int minval, int maxval)
 295{
 296        int result = 0, i;
 297
 298        for (i = minval; i <= maxval; i++) {
 299                const char *s = label(i);
 300                int len = s ? utf8_strwidth(s) : 0;
 301                if (len > result)
 302                        result = len;
 303        }
 304        return result;
 305}
 306
 307static void wt_status_print_unmerged_data(struct wt_status *s,
 308                                          struct string_list_item *it)
 309{
 310        const char *c = color(WT_STATUS_UNMERGED, s);
 311        struct wt_status_change_data *d = it->util;
 312        struct strbuf onebuf = STRBUF_INIT;
 313        static char *padding;
 314        static int label_width;
 315        const char *one, *how;
 316        int len;
 317
 318        if (!padding) {
 319                label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
 320                label_width += strlen(" ");
 321                padding = xmallocz(label_width);
 322                memset(padding, ' ', label_width);
 323        }
 324
 325        one = quote_path(it->string, s->prefix, &onebuf);
 326        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 327
 328        how = wt_status_unmerged_status_string(d->stagemask);
 329        len = label_width - utf8_strwidth(how);
 330        status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
 331        strbuf_release(&onebuf);
 332}
 333
 334static void wt_status_print_change_data(struct wt_status *s,
 335                                        int change_type,
 336                                        struct string_list_item *it)
 337{
 338        struct wt_status_change_data *d = it->util;
 339        const char *c = color(change_type, s);
 340        int status;
 341        char *one_name;
 342        char *two_name;
 343        const char *one, *two;
 344        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 345        struct strbuf extra = STRBUF_INIT;
 346        static char *padding;
 347        static int label_width;
 348        const char *what;
 349        int len;
 350
 351        if (!padding) {
 352                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 353                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 354                label_width += strlen(" ");
 355                padding = xmallocz(label_width);
 356                memset(padding, ' ', label_width);
 357        }
 358
 359        one_name = two_name = it->string;
 360        switch (change_type) {
 361        case WT_STATUS_UPDATED:
 362                status = d->index_status;
 363                if (d->head_path)
 364                        one_name = d->head_path;
 365                break;
 366        case WT_STATUS_CHANGED:
 367                if (d->new_submodule_commits || d->dirty_submodule) {
 368                        strbuf_addstr(&extra, " (");
 369                        if (d->new_submodule_commits)
 370                                strbuf_addf(&extra, _("new commits, "));
 371                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 372                                strbuf_addf(&extra, _("modified content, "));
 373                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 374                                strbuf_addf(&extra, _("untracked content, "));
 375                        strbuf_setlen(&extra, extra.len - 2);
 376                        strbuf_addch(&extra, ')');
 377                }
 378                status = d->worktree_status;
 379                break;
 380        default:
 381                die("BUG: unhandled change_type %d in wt_status_print_change_data",
 382                    change_type);
 383        }
 384
 385        one = quote_path(one_name, s->prefix, &onebuf);
 386        two = quote_path(two_name, s->prefix, &twobuf);
 387
 388        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 389        what = wt_status_diff_status_string(status);
 390        if (!what)
 391                die(_("bug: unhandled diff status %c"), status);
 392        len = label_width - utf8_strwidth(what);
 393        assert(len >= 0);
 394        if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 395                status_printf_more(s, c, "%s%.*s%s -> %s",
 396                                   what, len, padding, one, two);
 397        else
 398                status_printf_more(s, c, "%s%.*s%s",
 399                                   what, len, padding, one);
 400        if (extra.len) {
 401                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 402                strbuf_release(&extra);
 403        }
 404        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 405        strbuf_release(&onebuf);
 406        strbuf_release(&twobuf);
 407}
 408
 409static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 410                                         struct diff_options *options,
 411                                         void *data)
 412{
 413        struct wt_status *s = data;
 414        int i;
 415
 416        if (!q->nr)
 417                return;
 418        s->workdir_dirty = 1;
 419        for (i = 0; i < q->nr; i++) {
 420                struct diff_filepair *p;
 421                struct string_list_item *it;
 422                struct wt_status_change_data *d;
 423
 424                p = q->queue[i];
 425                it = string_list_insert(&s->change, p->one->path);
 426                d = it->util;
 427                if (!d) {
 428                        d = xcalloc(1, sizeof(*d));
 429                        it->util = d;
 430                }
 431                if (!d->worktree_status)
 432                        d->worktree_status = p->status;
 433                d->dirty_submodule = p->two->dirty_submodule;
 434                if (S_ISGITLINK(p->two->mode))
 435                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 436        }
 437}
 438
 439static int unmerged_mask(const char *path)
 440{
 441        int pos, mask;
 442        const struct cache_entry *ce;
 443
 444        pos = cache_name_pos(path, strlen(path));
 445        if (0 <= pos)
 446                return 0;
 447
 448        mask = 0;
 449        pos = -pos-1;
 450        while (pos < active_nr) {
 451                ce = active_cache[pos++];
 452                if (strcmp(ce->name, path) || !ce_stage(ce))
 453                        break;
 454                mask |= (1 << (ce_stage(ce) - 1));
 455        }
 456        return mask;
 457}
 458
 459static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 460                                         struct diff_options *options,
 461                                         void *data)
 462{
 463        struct wt_status *s = data;
 464        int i;
 465
 466        for (i = 0; i < q->nr; i++) {
 467                struct diff_filepair *p;
 468                struct string_list_item *it;
 469                struct wt_status_change_data *d;
 470
 471                p = q->queue[i];
 472                it = string_list_insert(&s->change, p->two->path);
 473                d = it->util;
 474                if (!d) {
 475                        d = xcalloc(1, sizeof(*d));
 476                        it->util = d;
 477                }
 478                if (!d->index_status)
 479                        d->index_status = p->status;
 480                switch (p->status) {
 481                case DIFF_STATUS_COPIED:
 482                case DIFF_STATUS_RENAMED:
 483                        d->head_path = xstrdup(p->one->path);
 484                        break;
 485                case DIFF_STATUS_UNMERGED:
 486                        d->stagemask = unmerged_mask(p->two->path);
 487                        break;
 488                }
 489        }
 490}
 491
 492static void wt_status_collect_changes_worktree(struct wt_status *s)
 493{
 494        struct rev_info rev;
 495
 496        init_revisions(&rev, NULL);
 497        setup_revisions(0, NULL, &rev, NULL);
 498        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 499        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 500        if (!s->show_untracked_files)
 501                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 502        if (s->ignore_submodule_arg) {
 503                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 504                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 505        }
 506        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 507        rev.diffopt.format_callback_data = s;
 508        copy_pathspec(&rev.prune_data, &s->pathspec);
 509        run_diff_files(&rev, 0);
 510}
 511
 512static void wt_status_collect_changes_index(struct wt_status *s)
 513{
 514        struct rev_info rev;
 515        struct setup_revision_opt opt;
 516
 517        init_revisions(&rev, NULL);
 518        memset(&opt, 0, sizeof(opt));
 519        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 520        setup_revisions(0, NULL, &rev, &opt);
 521
 522        DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 523        if (s->ignore_submodule_arg) {
 524                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 525        } else {
 526                /*
 527                 * Unless the user did explicitly request a submodule ignore
 528                 * mode by passing a command line option we do not ignore any
 529                 * changed submodule SHA-1s when comparing index and HEAD, no
 530                 * matter what is configured. Otherwise the user won't be
 531                 * shown any submodules she manually added (and which are
 532                 * staged to be committed), which would be really confusing.
 533                 */
 534                handle_ignore_submodules_arg(&rev.diffopt, "dirty");
 535        }
 536
 537        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 538        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 539        rev.diffopt.format_callback_data = s;
 540        rev.diffopt.detect_rename = 1;
 541        rev.diffopt.rename_limit = 200;
 542        rev.diffopt.break_opt = 0;
 543        copy_pathspec(&rev.prune_data, &s->pathspec);
 544        run_diff_index(&rev, 1);
 545}
 546
 547static void wt_status_collect_changes_initial(struct wt_status *s)
 548{
 549        int i;
 550
 551        for (i = 0; i < active_nr; i++) {
 552                struct string_list_item *it;
 553                struct wt_status_change_data *d;
 554                const struct cache_entry *ce = active_cache[i];
 555
 556                if (!ce_path_match(ce, &s->pathspec, NULL))
 557                        continue;
 558                it = string_list_insert(&s->change, ce->name);
 559                d = it->util;
 560                if (!d) {
 561                        d = xcalloc(1, sizeof(*d));
 562                        it->util = d;
 563                }
 564                if (ce_stage(ce)) {
 565                        d->index_status = DIFF_STATUS_UNMERGED;
 566                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 567                }
 568                else
 569                        d->index_status = DIFF_STATUS_ADDED;
 570        }
 571}
 572
 573static void wt_status_collect_untracked(struct wt_status *s)
 574{
 575        int i;
 576        struct dir_struct dir;
 577        uint64_t t_begin = getnanotime();
 578
 579        if (!s->show_untracked_files)
 580                return;
 581
 582        memset(&dir, 0, sizeof(dir));
 583        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 584                dir.flags |=
 585                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 586        if (s->show_ignored_files)
 587                dir.flags |= DIR_SHOW_IGNORED_TOO;
 588        setup_standard_excludes(&dir);
 589
 590        fill_directory(&dir, &s->pathspec);
 591
 592        for (i = 0; i < dir.nr; i++) {
 593                struct dir_entry *ent = dir.entries[i];
 594                if (cache_name_is_other(ent->name, ent->len) &&
 595                    dir_path_match(ent, &s->pathspec, 0, NULL))
 596                        string_list_insert(&s->untracked, ent->name);
 597                free(ent);
 598        }
 599
 600        for (i = 0; i < dir.ignored_nr; i++) {
 601                struct dir_entry *ent = dir.ignored[i];
 602                if (cache_name_is_other(ent->name, ent->len) &&
 603                    dir_path_match(ent, &s->pathspec, 0, NULL))
 604                        string_list_insert(&s->ignored, ent->name);
 605                free(ent);
 606        }
 607
 608        free(dir.entries);
 609        free(dir.ignored);
 610        clear_directory(&dir);
 611
 612        if (advice_status_u_option)
 613                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 614}
 615
 616void wt_status_collect(struct wt_status *s)
 617{
 618        wt_status_collect_changes_worktree(s);
 619
 620        if (s->is_initial)
 621                wt_status_collect_changes_initial(s);
 622        else
 623                wt_status_collect_changes_index(s);
 624        wt_status_collect_untracked(s);
 625}
 626
 627static void wt_status_print_unmerged(struct wt_status *s)
 628{
 629        int shown_header = 0;
 630        int i;
 631
 632        for (i = 0; i < s->change.nr; i++) {
 633                struct wt_status_change_data *d;
 634                struct string_list_item *it;
 635                it = &(s->change.items[i]);
 636                d = it->util;
 637                if (!d->stagemask)
 638                        continue;
 639                if (!shown_header) {
 640                        wt_status_print_unmerged_header(s);
 641                        shown_header = 1;
 642                }
 643                wt_status_print_unmerged_data(s, it);
 644        }
 645        if (shown_header)
 646                wt_status_print_trailer(s);
 647
 648}
 649
 650static void wt_status_print_updated(struct wt_status *s)
 651{
 652        int shown_header = 0;
 653        int i;
 654
 655        for (i = 0; i < s->change.nr; i++) {
 656                struct wt_status_change_data *d;
 657                struct string_list_item *it;
 658                it = &(s->change.items[i]);
 659                d = it->util;
 660                if (!d->index_status ||
 661                    d->index_status == DIFF_STATUS_UNMERGED)
 662                        continue;
 663                if (!shown_header) {
 664                        wt_status_print_cached_header(s);
 665                        s->commitable = 1;
 666                        shown_header = 1;
 667                }
 668                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 669        }
 670        if (shown_header)
 671                wt_status_print_trailer(s);
 672}
 673
 674/*
 675 * -1 : has delete
 676 *  0 : no change
 677 *  1 : some change but no delete
 678 */
 679static int wt_status_check_worktree_changes(struct wt_status *s,
 680                                             int *dirty_submodules)
 681{
 682        int i;
 683        int changes = 0;
 684
 685        *dirty_submodules = 0;
 686
 687        for (i = 0; i < s->change.nr; i++) {
 688                struct wt_status_change_data *d;
 689                d = s->change.items[i].util;
 690                if (!d->worktree_status ||
 691                    d->worktree_status == DIFF_STATUS_UNMERGED)
 692                        continue;
 693                if (!changes)
 694                        changes = 1;
 695                if (d->dirty_submodule)
 696                        *dirty_submodules = 1;
 697                if (d->worktree_status == DIFF_STATUS_DELETED)
 698                        changes = -1;
 699        }
 700        return changes;
 701}
 702
 703static void wt_status_print_changed(struct wt_status *s)
 704{
 705        int i, dirty_submodules;
 706        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 707
 708        if (!worktree_changes)
 709                return;
 710
 711        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 712
 713        for (i = 0; i < s->change.nr; i++) {
 714                struct wt_status_change_data *d;
 715                struct string_list_item *it;
 716                it = &(s->change.items[i]);
 717                d = it->util;
 718                if (!d->worktree_status ||
 719                    d->worktree_status == DIFF_STATUS_UNMERGED)
 720                        continue;
 721                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 722        }
 723        wt_status_print_trailer(s);
 724}
 725
 726static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 727{
 728        struct child_process sm_summary = CHILD_PROCESS_INIT;
 729        struct argv_array argv = ARGV_ARRAY_INIT;
 730        struct strbuf cmd_stdout = STRBUF_INIT;
 731        struct strbuf summary = STRBUF_INIT;
 732        char *summary_content;
 733        size_t len;
 734
 735        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 736                         s->index_file);
 737
 738        argv_array_push(&argv, "submodule");
 739        argv_array_push(&argv, "summary");
 740        argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 741        argv_array_push(&argv, "--for-status");
 742        argv_array_push(&argv, "--summary-limit");
 743        argv_array_pushf(&argv, "%d", s->submodule_summary);
 744        if (!uncommitted)
 745                argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 746
 747        sm_summary.argv = argv.argv;
 748        sm_summary.git_cmd = 1;
 749        sm_summary.no_stdin = 1;
 750        fflush(s->fp);
 751        sm_summary.out = -1;
 752
 753        run_command(&sm_summary);
 754        argv_array_clear(&argv);
 755
 756        len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 757
 758        /* prepend header, only if there's an actual output */
 759        if (len) {
 760                if (uncommitted)
 761                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 762                else
 763                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 764                strbuf_addstr(&summary, "\n\n");
 765        }
 766        strbuf_addbuf(&summary, &cmd_stdout);
 767        strbuf_release(&cmd_stdout);
 768
 769        if (s->display_comment_prefix) {
 770                summary_content = strbuf_detach(&summary, &len);
 771                strbuf_add_commented_lines(&summary, summary_content, len);
 772                free(summary_content);
 773        }
 774
 775        fputs(summary.buf, s->fp);
 776        strbuf_release(&summary);
 777}
 778
 779static void wt_status_print_other(struct wt_status *s,
 780                                  struct string_list *l,
 781                                  const char *what,
 782                                  const char *how)
 783{
 784        int i;
 785        struct strbuf buf = STRBUF_INIT;
 786        static struct string_list output = STRING_LIST_INIT_DUP;
 787        struct column_options copts;
 788
 789        if (!l->nr)
 790                return;
 791
 792        wt_status_print_other_header(s, what, how);
 793
 794        for (i = 0; i < l->nr; i++) {
 795                struct string_list_item *it;
 796                const char *path;
 797                it = &(l->items[i]);
 798                path = quote_path(it->string, s->prefix, &buf);
 799                if (column_active(s->colopts)) {
 800                        string_list_append(&output, path);
 801                        continue;
 802                }
 803                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 804                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 805                                   "%s\n", path);
 806        }
 807
 808        strbuf_release(&buf);
 809        if (!column_active(s->colopts))
 810                goto conclude;
 811
 812        strbuf_addf(&buf, "%s%s\t%s",
 813                    color(WT_STATUS_HEADER, s),
 814                    s->display_comment_prefix ? "#" : "",
 815                    color(WT_STATUS_UNTRACKED, s));
 816        memset(&copts, 0, sizeof(copts));
 817        copts.padding = 1;
 818        copts.indent = buf.buf;
 819        if (want_color(s->use_color))
 820                copts.nl = GIT_COLOR_RESET "\n";
 821        print_columns(&output, s->colopts, &copts);
 822        string_list_clear(&output, 0);
 823        strbuf_release(&buf);
 824conclude:
 825        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 826}
 827
 828void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 829{
 830        const char *p;
 831        struct strbuf pattern = STRBUF_INIT;
 832
 833        strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
 834        p = strstr(buf->buf, pattern.buf);
 835        if (p && (p == buf->buf || p[-1] == '\n'))
 836                strbuf_setlen(buf, p - buf->buf);
 837        strbuf_release(&pattern);
 838}
 839
 840void wt_status_add_cut_line(FILE *fp)
 841{
 842        const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 843        struct strbuf buf = STRBUF_INIT;
 844
 845        fprintf(fp, "%c %s", comment_line_char, cut_line);
 846        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 847        fputs(buf.buf, fp);
 848        strbuf_release(&buf);
 849}
 850
 851static void wt_status_print_verbose(struct wt_status *s)
 852{
 853        struct rev_info rev;
 854        struct setup_revision_opt opt;
 855
 856        init_revisions(&rev, NULL);
 857        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 858
 859        memset(&opt, 0, sizeof(opt));
 860        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 861        setup_revisions(0, NULL, &rev, &opt);
 862
 863        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 864        rev.diffopt.detect_rename = 1;
 865        rev.diffopt.file = s->fp;
 866        rev.diffopt.close_file = 0;
 867        /*
 868         * If we're not going to stdout, then we definitely don't
 869         * want color, since we are going to the commit message
 870         * file (and even the "auto" setting won't work, since it
 871         * will have checked isatty on stdout). But we then do want
 872         * to insert the scissor line here to reliably remove the
 873         * diff before committing.
 874         */
 875        if (s->fp != stdout) {
 876                rev.diffopt.use_color = 0;
 877                wt_status_add_cut_line(s->fp);
 878        }
 879        run_diff_index(&rev, 1);
 880}
 881
 882static void wt_status_print_tracking(struct wt_status *s)
 883{
 884        struct strbuf sb = STRBUF_INIT;
 885        const char *cp, *ep;
 886        struct branch *branch;
 887        char comment_line_string[3];
 888        int i;
 889
 890        assert(s->branch && !s->is_initial);
 891        if (!starts_with(s->branch, "refs/heads/"))
 892                return;
 893        branch = branch_get(s->branch + 11);
 894        if (!format_tracking_info(branch, &sb))
 895                return;
 896
 897        i = 0;
 898        if (s->display_comment_prefix) {
 899                comment_line_string[i++] = comment_line_char;
 900                comment_line_string[i++] = ' ';
 901        }
 902        comment_line_string[i] = '\0';
 903
 904        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 905                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 906                                 "%s%.*s", comment_line_string,
 907                                 (int)(ep - cp), cp);
 908        if (s->display_comment_prefix)
 909                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 910                                 comment_line_char);
 911        else
 912                fputs("", s->fp);
 913}
 914
 915static int has_unmerged(struct wt_status *s)
 916{
 917        int i;
 918
 919        for (i = 0; i < s->change.nr; i++) {
 920                struct wt_status_change_data *d;
 921                d = s->change.items[i].util;
 922                if (d->stagemask)
 923                        return 1;
 924        }
 925        return 0;
 926}
 927
 928static void show_merge_in_progress(struct wt_status *s,
 929                                struct wt_status_state *state,
 930                                const char *color)
 931{
 932        if (has_unmerged(s)) {
 933                status_printf_ln(s, color, _("You have unmerged paths."));
 934                if (s->hints)
 935                        status_printf_ln(s, color,
 936                                _("  (fix conflicts and run \"git commit\")"));
 937        } else {
 938                status_printf_ln(s, color,
 939                        _("All conflicts fixed but you are still merging."));
 940                if (s->hints)
 941                        status_printf_ln(s, color,
 942                                _("  (use \"git commit\" to conclude merge)"));
 943        }
 944        wt_status_print_trailer(s);
 945}
 946
 947static void show_am_in_progress(struct wt_status *s,
 948                                struct wt_status_state *state,
 949                                const char *color)
 950{
 951        status_printf_ln(s, color,
 952                _("You are in the middle of an am session."));
 953        if (state->am_empty_patch)
 954                status_printf_ln(s, color,
 955                        _("The current patch is empty."));
 956        if (s->hints) {
 957                if (!state->am_empty_patch)
 958                        status_printf_ln(s, color,
 959                                _("  (fix conflicts and then run \"git am --continue\")"));
 960                status_printf_ln(s, color,
 961                        _("  (use \"git am --skip\" to skip this patch)"));
 962                status_printf_ln(s, color,
 963                        _("  (use \"git am --abort\" to restore the original branch)"));
 964        }
 965        wt_status_print_trailer(s);
 966}
 967
 968static char *read_line_from_git_path(const char *filename)
 969{
 970        struct strbuf buf = STRBUF_INIT;
 971        FILE *fp = fopen(git_path("%s", filename), "r");
 972        if (!fp) {
 973                strbuf_release(&buf);
 974                return NULL;
 975        }
 976        strbuf_getline(&buf, fp, '\n');
 977        if (!fclose(fp)) {
 978                return strbuf_detach(&buf, NULL);
 979        } else {
 980                strbuf_release(&buf);
 981                return NULL;
 982        }
 983}
 984
 985static int split_commit_in_progress(struct wt_status *s)
 986{
 987        int split_in_progress = 0;
 988        char *head = read_line_from_git_path("HEAD");
 989        char *orig_head = read_line_from_git_path("ORIG_HEAD");
 990        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 991        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 992
 993        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 994            !s->branch || strcmp(s->branch, "HEAD"))
 995                return split_in_progress;
 996
 997        if (!strcmp(rebase_amend, rebase_orig_head)) {
 998                if (strcmp(head, rebase_amend))
 999                        split_in_progress = 1;
1000        } else if (strcmp(orig_head, rebase_orig_head)) {
1001                split_in_progress = 1;
1002        }
1003
1004        if (!s->amend && !s->nowarn && !s->workdir_dirty)
1005                split_in_progress = 0;
1006
1007        free(head);
1008        free(orig_head);
1009        free(rebase_amend);
1010        free(rebase_orig_head);
1011        return split_in_progress;
1012}
1013
1014static void show_rebase_in_progress(struct wt_status *s,
1015                                struct wt_status_state *state,
1016                                const char *color)
1017{
1018        struct stat st;
1019
1020        if (has_unmerged(s)) {
1021                if (state->branch)
1022                        status_printf_ln(s, color,
1023                                         _("You are currently rebasing branch '%s' on '%s'."),
1024                                         state->branch,
1025                                         state->onto);
1026                else
1027                        status_printf_ln(s, color,
1028                                         _("You are currently rebasing."));
1029                if (s->hints) {
1030                        status_printf_ln(s, color,
1031                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1032                        status_printf_ln(s, color,
1033                                _("  (use \"git rebase --skip\" to skip this patch)"));
1034                        status_printf_ln(s, color,
1035                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1036                }
1037        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
1038                if (state->branch)
1039                        status_printf_ln(s, color,
1040                                         _("You are currently rebasing branch '%s' on '%s'."),
1041                                         state->branch,
1042                                         state->onto);
1043                else
1044                        status_printf_ln(s, color,
1045                                         _("You are currently rebasing."));
1046                if (s->hints)
1047                        status_printf_ln(s, color,
1048                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1049        } else if (split_commit_in_progress(s)) {
1050                if (state->branch)
1051                        status_printf_ln(s, color,
1052                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1053                                         state->branch,
1054                                         state->onto);
1055                else
1056                        status_printf_ln(s, color,
1057                                         _("You are currently splitting a commit during a rebase."));
1058                if (s->hints)
1059                        status_printf_ln(s, color,
1060                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1061        } else {
1062                if (state->branch)
1063                        status_printf_ln(s, color,
1064                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1065                                         state->branch,
1066                                         state->onto);
1067                else
1068                        status_printf_ln(s, color,
1069                                         _("You are currently editing a commit during a rebase."));
1070                if (s->hints && !s->amend) {
1071                        status_printf_ln(s, color,
1072                                _("  (use \"git commit --amend\" to amend the current commit)"));
1073                        status_printf_ln(s, color,
1074                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1075                }
1076        }
1077        wt_status_print_trailer(s);
1078}
1079
1080static void show_cherry_pick_in_progress(struct wt_status *s,
1081                                        struct wt_status_state *state,
1082                                        const char *color)
1083{
1084        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1085                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1086        if (s->hints) {
1087                if (has_unmerged(s))
1088                        status_printf_ln(s, color,
1089                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1090                else
1091                        status_printf_ln(s, color,
1092                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1093                status_printf_ln(s, color,
1094                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1095        }
1096        wt_status_print_trailer(s);
1097}
1098
1099static void show_revert_in_progress(struct wt_status *s,
1100                                        struct wt_status_state *state,
1101                                        const char *color)
1102{
1103        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1104                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1105        if (s->hints) {
1106                if (has_unmerged(s))
1107                        status_printf_ln(s, color,
1108                                _("  (fix conflicts and run \"git revert --continue\")"));
1109                else
1110                        status_printf_ln(s, color,
1111                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1112                status_printf_ln(s, color,
1113                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1114        }
1115        wt_status_print_trailer(s);
1116}
1117
1118static void show_bisect_in_progress(struct wt_status *s,
1119                                struct wt_status_state *state,
1120                                const char *color)
1121{
1122        if (state->branch)
1123                status_printf_ln(s, color,
1124                                 _("You are currently bisecting, started from branch '%s'."),
1125                                 state->branch);
1126        else
1127                status_printf_ln(s, color,
1128                                 _("You are currently bisecting."));
1129        if (s->hints)
1130                status_printf_ln(s, color,
1131                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1132        wt_status_print_trailer(s);
1133}
1134
1135/*
1136 * Extract branch information from rebase/bisect
1137 */
1138static char *read_and_strip_branch(const char *path)
1139{
1140        struct strbuf sb = STRBUF_INIT;
1141        unsigned char sha1[20];
1142
1143        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1144                goto got_nothing;
1145
1146        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1147                strbuf_setlen(&sb, sb.len - 1);
1148        if (!sb.len)
1149                goto got_nothing;
1150        if (starts_with(sb.buf, "refs/heads/"))
1151                strbuf_remove(&sb,0, strlen("refs/heads/"));
1152        else if (starts_with(sb.buf, "refs/"))
1153                ;
1154        else if (!get_sha1_hex(sb.buf, sha1)) {
1155                const char *abbrev;
1156                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1157                strbuf_reset(&sb);
1158                strbuf_addstr(&sb, abbrev);
1159        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1160                goto got_nothing;
1161        else                    /* bisect */
1162                ;
1163        return strbuf_detach(&sb, NULL);
1164
1165got_nothing:
1166        strbuf_release(&sb);
1167        return NULL;
1168}
1169
1170struct grab_1st_switch_cbdata {
1171        struct strbuf buf;
1172        unsigned char nsha1[20];
1173};
1174
1175static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1176                           const char *email, unsigned long timestamp, int tz,
1177                           const char *message, void *cb_data)
1178{
1179        struct grab_1st_switch_cbdata *cb = cb_data;
1180        const char *target = NULL, *end;
1181
1182        if (!starts_with(message, "checkout: moving from "))
1183                return 0;
1184        message += strlen("checkout: moving from ");
1185        target = strstr(message, " to ");
1186        if (!target)
1187                return 0;
1188        target += strlen(" to ");
1189        strbuf_reset(&cb->buf);
1190        hashcpy(cb->nsha1, nsha1);
1191        for (end = target; *end && *end != '\n'; end++)
1192                ;
1193        strbuf_add(&cb->buf, target, end - target);
1194        return 1;
1195}
1196
1197static void wt_status_get_detached_from(struct wt_status_state *state)
1198{
1199        struct grab_1st_switch_cbdata cb;
1200        struct commit *commit;
1201        unsigned char sha1[20];
1202        char *ref = NULL;
1203
1204        strbuf_init(&cb.buf, 0);
1205        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1206                strbuf_release(&cb.buf);
1207                return;
1208        }
1209
1210        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1211            /* sha1 is a commit? match without further lookup */
1212            (!hashcmp(cb.nsha1, sha1) ||
1213             /* perhaps sha1 is a tag, try to dereference to a commit */
1214             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1215              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1216                int ofs;
1217                if (starts_with(ref, "refs/tags/"))
1218                        ofs = strlen("refs/tags/");
1219                else if (starts_with(ref, "refs/remotes/"))
1220                        ofs = strlen("refs/remotes/");
1221                else
1222                        ofs = 0;
1223                state->detached_from = xstrdup(ref + ofs);
1224        } else
1225                state->detached_from =
1226                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1227        hashcpy(state->detached_sha1, cb.nsha1);
1228
1229        free(ref);
1230        strbuf_release(&cb.buf);
1231}
1232
1233void wt_status_get_state(struct wt_status_state *state,
1234                         int get_detached_from)
1235{
1236        struct stat st;
1237        unsigned char sha1[20];
1238
1239        if (!stat(git_path("MERGE_HEAD"), &st)) {
1240                state->merge_in_progress = 1;
1241        } else if (!stat(git_path("rebase-apply"), &st)) {
1242                if (!stat(git_path("rebase-apply/applying"), &st)) {
1243                        state->am_in_progress = 1;
1244                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1245                                state->am_empty_patch = 1;
1246                } else {
1247                        state->rebase_in_progress = 1;
1248                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1249                        state->onto = read_and_strip_branch("rebase-apply/onto");
1250                }
1251        } else if (!stat(git_path("rebase-merge"), &st)) {
1252                if (!stat(git_path("rebase-merge/interactive"), &st))
1253                        state->rebase_interactive_in_progress = 1;
1254                else
1255                        state->rebase_in_progress = 1;
1256                state->branch = read_and_strip_branch("rebase-merge/head-name");
1257                state->onto = read_and_strip_branch("rebase-merge/onto");
1258        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1259                        !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1260                state->cherry_pick_in_progress = 1;
1261                hashcpy(state->cherry_pick_head_sha1, sha1);
1262        }
1263        if (!stat(git_path("BISECT_LOG"), &st)) {
1264                state->bisect_in_progress = 1;
1265                state->branch = read_and_strip_branch("BISECT_START");
1266        }
1267        if (!stat(git_path("REVERT_HEAD"), &st) &&
1268            !get_sha1("REVERT_HEAD", sha1)) {
1269                state->revert_in_progress = 1;
1270                hashcpy(state->revert_head_sha1, sha1);
1271        }
1272
1273        if (get_detached_from)
1274                wt_status_get_detached_from(state);
1275}
1276
1277static void wt_status_print_state(struct wt_status *s,
1278                                  struct wt_status_state *state)
1279{
1280        const char *state_color = color(WT_STATUS_HEADER, s);
1281        if (state->merge_in_progress)
1282                show_merge_in_progress(s, state, state_color);
1283        else if (state->am_in_progress)
1284                show_am_in_progress(s, state, state_color);
1285        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1286                show_rebase_in_progress(s, state, state_color);
1287        else if (state->cherry_pick_in_progress)
1288                show_cherry_pick_in_progress(s, state, state_color);
1289        else if (state->revert_in_progress)
1290                show_revert_in_progress(s, state, state_color);
1291        if (state->bisect_in_progress)
1292                show_bisect_in_progress(s, state, state_color);
1293}
1294
1295void wt_status_print(struct wt_status *s)
1296{
1297        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1298        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1299        struct wt_status_state state;
1300
1301        memset(&state, 0, sizeof(state));
1302        wt_status_get_state(&state,
1303                            s->branch && !strcmp(s->branch, "HEAD"));
1304
1305        if (s->branch) {
1306                const char *on_what = _("On branch ");
1307                const char *branch_name = s->branch;
1308                if (starts_with(branch_name, "refs/heads/"))
1309                        branch_name += 11;
1310                else if (!strcmp(branch_name, "HEAD")) {
1311                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1312                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1313                                on_what = _("rebase in progress; onto ");
1314                                branch_name = state.onto;
1315                        } else if (state.detached_from) {
1316                                unsigned char sha1[20];
1317                                branch_name = state.detached_from;
1318                                if (!get_sha1("HEAD", sha1) &&
1319                                    !hashcmp(sha1, state.detached_sha1))
1320                                        on_what = _("HEAD detached at ");
1321                                else
1322                                        on_what = _("HEAD detached from ");
1323                        } else {
1324                                branch_name = "";
1325                                on_what = _("Not currently on any branch.");
1326                        }
1327                }
1328                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1329                status_printf_more(s, branch_status_color, "%s", on_what);
1330                status_printf_more(s, branch_color, "%s\n", branch_name);
1331                if (!s->is_initial)
1332                        wt_status_print_tracking(s);
1333        }
1334
1335        wt_status_print_state(s, &state);
1336        free(state.branch);
1337        free(state.onto);
1338        free(state.detached_from);
1339
1340        if (s->is_initial) {
1341                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1342                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1343                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1344        }
1345
1346        wt_status_print_updated(s);
1347        wt_status_print_unmerged(s);
1348        wt_status_print_changed(s);
1349        if (s->submodule_summary &&
1350            (!s->ignore_submodule_arg ||
1351             strcmp(s->ignore_submodule_arg, "all"))) {
1352                wt_status_print_submodule_summary(s, 0);  /* staged */
1353                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1354        }
1355        if (s->show_untracked_files) {
1356                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1357                if (s->show_ignored_files)
1358                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1359                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1360                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1361                        status_printf_ln(s, GIT_COLOR_NORMAL,
1362                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1363                                           "may speed it up, but you have to be careful not to forget to add\n"
1364                                           "new files yourself (see 'git help status')."),
1365                                         s->untracked_in_ms / 1000.0);
1366                }
1367        } else if (s->commitable)
1368                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1369                        s->hints
1370                        ? _(" (use -u option to show untracked files)") : "");
1371
1372        if (s->verbose)
1373                wt_status_print_verbose(s);
1374        if (!s->commitable) {
1375                if (s->amend)
1376                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1377                else if (s->nowarn)
1378                        ; /* nothing */
1379                else if (s->workdir_dirty) {
1380                        if (s->hints)
1381                                printf(_("no changes added to commit "
1382                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1383                        else
1384                                printf(_("no changes added to commit\n"));
1385                } else if (s->untracked.nr) {
1386                        if (s->hints)
1387                                printf(_("nothing added to commit but untracked files "
1388                                         "present (use \"git add\" to track)\n"));
1389                        else
1390                                printf(_("nothing added to commit but untracked files present\n"));
1391                } else if (s->is_initial) {
1392                        if (s->hints)
1393                                printf(_("nothing to commit (create/copy files "
1394                                         "and use \"git add\" to track)\n"));
1395                        else
1396                                printf(_("nothing to commit\n"));
1397                } else if (!s->show_untracked_files) {
1398                        if (s->hints)
1399                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1400                        else
1401                                printf(_("nothing to commit\n"));
1402                } else
1403                        printf(_("nothing to commit, working directory clean\n"));
1404        }
1405}
1406
1407static void wt_shortstatus_unmerged(struct string_list_item *it,
1408                           struct wt_status *s)
1409{
1410        struct wt_status_change_data *d = it->util;
1411        const char *how = "??";
1412
1413        switch (d->stagemask) {
1414        case 1: how = "DD"; break; /* both deleted */
1415        case 2: how = "AU"; break; /* added by us */
1416        case 3: how = "UD"; break; /* deleted by them */
1417        case 4: how = "UA"; break; /* added by them */
1418        case 5: how = "DU"; break; /* deleted by us */
1419        case 6: how = "AA"; break; /* both added */
1420        case 7: how = "UU"; break; /* both modified */
1421        }
1422        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1423        if (s->null_termination) {
1424                fprintf(stdout, " %s%c", it->string, 0);
1425        } else {
1426                struct strbuf onebuf = STRBUF_INIT;
1427                const char *one;
1428                one = quote_path(it->string, s->prefix, &onebuf);
1429                printf(" %s\n", one);
1430                strbuf_release(&onebuf);
1431        }
1432}
1433
1434static void wt_shortstatus_status(struct string_list_item *it,
1435                         struct wt_status *s)
1436{
1437        struct wt_status_change_data *d = it->util;
1438
1439        if (d->index_status)
1440                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1441        else
1442                putchar(' ');
1443        if (d->worktree_status)
1444                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1445        else
1446                putchar(' ');
1447        putchar(' ');
1448        if (s->null_termination) {
1449                fprintf(stdout, "%s%c", it->string, 0);
1450                if (d->head_path)
1451                        fprintf(stdout, "%s%c", d->head_path, 0);
1452        } else {
1453                struct strbuf onebuf = STRBUF_INIT;
1454                const char *one;
1455                if (d->head_path) {
1456                        one = quote_path(d->head_path, s->prefix, &onebuf);
1457                        if (*one != '"' && strchr(one, ' ') != NULL) {
1458                                putchar('"');
1459                                strbuf_addch(&onebuf, '"');
1460                                one = onebuf.buf;
1461                        }
1462                        printf("%s -> ", one);
1463                        strbuf_release(&onebuf);
1464                }
1465                one = quote_path(it->string, s->prefix, &onebuf);
1466                if (*one != '"' && strchr(one, ' ') != NULL) {
1467                        putchar('"');
1468                        strbuf_addch(&onebuf, '"');
1469                        one = onebuf.buf;
1470                }
1471                printf("%s\n", one);
1472                strbuf_release(&onebuf);
1473        }
1474}
1475
1476static void wt_shortstatus_other(struct string_list_item *it,
1477                                 struct wt_status *s, const char *sign)
1478{
1479        if (s->null_termination) {
1480                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1481        } else {
1482                struct strbuf onebuf = STRBUF_INIT;
1483                const char *one;
1484                one = quote_path(it->string, s->prefix, &onebuf);
1485                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1486                printf(" %s\n", one);
1487                strbuf_release(&onebuf);
1488        }
1489}
1490
1491static void wt_shortstatus_print_tracking(struct wt_status *s)
1492{
1493        struct branch *branch;
1494        const char *header_color = color(WT_STATUS_HEADER, s);
1495        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1496        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1497
1498        const char *base;
1499        const char *branch_name;
1500        int num_ours, num_theirs;
1501        int upstream_is_gone = 0;
1502
1503        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1504
1505        if (!s->branch)
1506                return;
1507        branch_name = s->branch;
1508
1509        if (starts_with(branch_name, "refs/heads/"))
1510                branch_name += 11;
1511        else if (!strcmp(branch_name, "HEAD")) {
1512                branch_name = _("HEAD (no branch)");
1513                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1514        }
1515
1516        branch = branch_get(s->branch + 11);
1517        if (s->is_initial)
1518                color_fprintf(s->fp, header_color, _("Initial commit on "));
1519
1520        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1521
1522        switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1523        case 0:
1524                /* no base */
1525                fputc(s->null_termination ? '\0' : '\n', s->fp);
1526                return;
1527        case -1:
1528                /* with "gone" base */
1529                upstream_is_gone = 1;
1530                break;
1531        default:
1532                /* with base */
1533                break;
1534        }
1535
1536        base = branch->merge[0]->dst;
1537        base = shorten_unambiguous_ref(base, 0);
1538        color_fprintf(s->fp, header_color, "...");
1539        color_fprintf(s->fp, branch_color_remote, "%s", base);
1540
1541        if (!upstream_is_gone && !num_ours && !num_theirs) {
1542                fputc(s->null_termination ? '\0' : '\n', s->fp);
1543                return;
1544        }
1545
1546#define LABEL(string) (s->no_gettext ? (string) : _(string))
1547
1548        color_fprintf(s->fp, header_color, " [");
1549        if (upstream_is_gone) {
1550                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1551        } else if (!num_ours) {
1552                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1553                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1554        } else if (!num_theirs) {
1555                color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1556                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1557        } else {
1558                color_fprintf(s->fp, header_color, LABEL(N_(("ahead "))));
1559                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1560                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1561                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1562        }
1563
1564        color_fprintf(s->fp, header_color, "]");
1565        fputc(s->null_termination ? '\0' : '\n', s->fp);
1566}
1567
1568void wt_shortstatus_print(struct wt_status *s)
1569{
1570        int i;
1571
1572        if (s->show_branch)
1573                wt_shortstatus_print_tracking(s);
1574
1575        for (i = 0; i < s->change.nr; i++) {
1576                struct wt_status_change_data *d;
1577                struct string_list_item *it;
1578
1579                it = &(s->change.items[i]);
1580                d = it->util;
1581                if (d->stagemask)
1582                        wt_shortstatus_unmerged(it, s);
1583                else
1584                        wt_shortstatus_status(it, s);
1585        }
1586        for (i = 0; i < s->untracked.nr; i++) {
1587                struct string_list_item *it;
1588
1589                it = &(s->untracked.items[i]);
1590                wt_shortstatus_other(it, s, "??");
1591        }
1592        for (i = 0; i < s->ignored.nr; i++) {
1593                struct string_list_item *it;
1594
1595                it = &(s->ignored.items[i]);
1596                wt_shortstatus_other(it, s, "!!");
1597        }
1598}
1599
1600void wt_porcelain_print(struct wt_status *s)
1601{
1602        s->use_color = 0;
1603        s->relative_paths = 0;
1604        s->prefix = NULL;
1605        s->no_gettext = 1;
1606        wt_shortstatus_print(s);
1607}