wt-status.con commit git-svn: allow --version to work anywhere (c0071ae)
   1#include "cache.h"
   2#include "wt-status.h"
   3#include "object.h"
   4#include "dir.h"
   5#include "commit.h"
   6#include "diff.h"
   7#include "revision.h"
   8#include "diffcore.h"
   9#include "quote.h"
  10#include "run-command.h"
  11#include "argv-array.h"
  12#include "remote.h"
  13#include "refs.h"
  14#include "submodule.h"
  15#include "column.h"
  16#include "strbuf.h"
  17#include "utf8.h"
  18#include "worktree.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        else
 589                dir.untracked = the_index.untracked;
 590        setup_standard_excludes(&dir);
 591
 592        fill_directory(&dir, &s->pathspec);
 593
 594        for (i = 0; i < dir.nr; i++) {
 595                struct dir_entry *ent = dir.entries[i];
 596                if (cache_name_is_other(ent->name, ent->len) &&
 597                    dir_path_match(ent, &s->pathspec, 0, NULL))
 598                        string_list_insert(&s->untracked, ent->name);
 599                free(ent);
 600        }
 601
 602        for (i = 0; i < dir.ignored_nr; i++) {
 603                struct dir_entry *ent = dir.ignored[i];
 604                if (cache_name_is_other(ent->name, ent->len) &&
 605                    dir_path_match(ent, &s->pathspec, 0, NULL))
 606                        string_list_insert(&s->ignored, ent->name);
 607                free(ent);
 608        }
 609
 610        free(dir.entries);
 611        free(dir.ignored);
 612        clear_directory(&dir);
 613
 614        if (advice_status_u_option)
 615                s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
 616}
 617
 618void wt_status_collect(struct wt_status *s)
 619{
 620        wt_status_collect_changes_worktree(s);
 621
 622        if (s->is_initial)
 623                wt_status_collect_changes_initial(s);
 624        else
 625                wt_status_collect_changes_index(s);
 626        wt_status_collect_untracked(s);
 627}
 628
 629static void wt_status_print_unmerged(struct wt_status *s)
 630{
 631        int shown_header = 0;
 632        int i;
 633
 634        for (i = 0; i < s->change.nr; i++) {
 635                struct wt_status_change_data *d;
 636                struct string_list_item *it;
 637                it = &(s->change.items[i]);
 638                d = it->util;
 639                if (!d->stagemask)
 640                        continue;
 641                if (!shown_header) {
 642                        wt_status_print_unmerged_header(s);
 643                        shown_header = 1;
 644                }
 645                wt_status_print_unmerged_data(s, it);
 646        }
 647        if (shown_header)
 648                wt_status_print_trailer(s);
 649
 650}
 651
 652static void wt_status_print_updated(struct wt_status *s)
 653{
 654        int shown_header = 0;
 655        int i;
 656
 657        for (i = 0; i < s->change.nr; i++) {
 658                struct wt_status_change_data *d;
 659                struct string_list_item *it;
 660                it = &(s->change.items[i]);
 661                d = it->util;
 662                if (!d->index_status ||
 663                    d->index_status == DIFF_STATUS_UNMERGED)
 664                        continue;
 665                if (!shown_header) {
 666                        wt_status_print_cached_header(s);
 667                        s->commitable = 1;
 668                        shown_header = 1;
 669                }
 670                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 671        }
 672        if (shown_header)
 673                wt_status_print_trailer(s);
 674}
 675
 676/*
 677 * -1 : has delete
 678 *  0 : no change
 679 *  1 : some change but no delete
 680 */
 681static int wt_status_check_worktree_changes(struct wt_status *s,
 682                                             int *dirty_submodules)
 683{
 684        int i;
 685        int changes = 0;
 686
 687        *dirty_submodules = 0;
 688
 689        for (i = 0; i < s->change.nr; i++) {
 690                struct wt_status_change_data *d;
 691                d = s->change.items[i].util;
 692                if (!d->worktree_status ||
 693                    d->worktree_status == DIFF_STATUS_UNMERGED)
 694                        continue;
 695                if (!changes)
 696                        changes = 1;
 697                if (d->dirty_submodule)
 698                        *dirty_submodules = 1;
 699                if (d->worktree_status == DIFF_STATUS_DELETED)
 700                        changes = -1;
 701        }
 702        return changes;
 703}
 704
 705static void wt_status_print_changed(struct wt_status *s)
 706{
 707        int i, dirty_submodules;
 708        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 709
 710        if (!worktree_changes)
 711                return;
 712
 713        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 714
 715        for (i = 0; i < s->change.nr; i++) {
 716                struct wt_status_change_data *d;
 717                struct string_list_item *it;
 718                it = &(s->change.items[i]);
 719                d = it->util;
 720                if (!d->worktree_status ||
 721                    d->worktree_status == DIFF_STATUS_UNMERGED)
 722                        continue;
 723                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 724        }
 725        wt_status_print_trailer(s);
 726}
 727
 728static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 729{
 730        struct child_process sm_summary = CHILD_PROCESS_INIT;
 731        struct strbuf cmd_stdout = STRBUF_INIT;
 732        struct strbuf summary = STRBUF_INIT;
 733        char *summary_content;
 734
 735        argv_array_pushf(&sm_summary.env_array, "GIT_INDEX_FILE=%s",
 736                         s->index_file);
 737
 738        argv_array_push(&sm_summary.args, "submodule");
 739        argv_array_push(&sm_summary.args, "summary");
 740        argv_array_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
 741        argv_array_push(&sm_summary.args, "--for-status");
 742        argv_array_push(&sm_summary.args, "--summary-limit");
 743        argv_array_pushf(&sm_summary.args, "%d", s->submodule_summary);
 744        if (!uncommitted)
 745                argv_array_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
 746
 747        sm_summary.git_cmd = 1;
 748        sm_summary.no_stdin = 1;
 749
 750        capture_command(&sm_summary, &cmd_stdout, 1024);
 751
 752        /* prepend header, only if there's an actual output */
 753        if (cmd_stdout.len) {
 754                if (uncommitted)
 755                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 756                else
 757                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 758                strbuf_addstr(&summary, "\n\n");
 759        }
 760        strbuf_addbuf(&summary, &cmd_stdout);
 761        strbuf_release(&cmd_stdout);
 762
 763        if (s->display_comment_prefix) {
 764                size_t len;
 765                summary_content = strbuf_detach(&summary, &len);
 766                strbuf_add_commented_lines(&summary, summary_content, len);
 767                free(summary_content);
 768        }
 769
 770        fputs(summary.buf, s->fp);
 771        strbuf_release(&summary);
 772}
 773
 774static void wt_status_print_other(struct wt_status *s,
 775                                  struct string_list *l,
 776                                  const char *what,
 777                                  const char *how)
 778{
 779        int i;
 780        struct strbuf buf = STRBUF_INIT;
 781        static struct string_list output = STRING_LIST_INIT_DUP;
 782        struct column_options copts;
 783
 784        if (!l->nr)
 785                return;
 786
 787        wt_status_print_other_header(s, what, how);
 788
 789        for (i = 0; i < l->nr; i++) {
 790                struct string_list_item *it;
 791                const char *path;
 792                it = &(l->items[i]);
 793                path = quote_path(it->string, s->prefix, &buf);
 794                if (column_active(s->colopts)) {
 795                        string_list_append(&output, path);
 796                        continue;
 797                }
 798                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 799                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 800                                   "%s\n", path);
 801        }
 802
 803        strbuf_release(&buf);
 804        if (!column_active(s->colopts))
 805                goto conclude;
 806
 807        strbuf_addf(&buf, "%s%s\t%s",
 808                    color(WT_STATUS_HEADER, s),
 809                    s->display_comment_prefix ? "#" : "",
 810                    color(WT_STATUS_UNTRACKED, s));
 811        memset(&copts, 0, sizeof(copts));
 812        copts.padding = 1;
 813        copts.indent = buf.buf;
 814        if (want_color(s->use_color))
 815                copts.nl = GIT_COLOR_RESET "\n";
 816        print_columns(&output, s->colopts, &copts);
 817        string_list_clear(&output, 0);
 818        strbuf_release(&buf);
 819conclude:
 820        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 821}
 822
 823void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 824{
 825        const char *p;
 826        struct strbuf pattern = STRBUF_INIT;
 827
 828        strbuf_addf(&pattern, "\n%c %s", comment_line_char, cut_line);
 829        if (starts_with(buf->buf, pattern.buf + 1))
 830                strbuf_setlen(buf, 0);
 831        else if ((p = strstr(buf->buf, pattern.buf)))
 832                strbuf_setlen(buf, p - buf->buf + 1);
 833        strbuf_release(&pattern);
 834}
 835
 836void wt_status_add_cut_line(FILE *fp)
 837{
 838        const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 839        struct strbuf buf = STRBUF_INIT;
 840
 841        fprintf(fp, "%c %s", comment_line_char, cut_line);
 842        strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 843        fputs(buf.buf, fp);
 844        strbuf_release(&buf);
 845}
 846
 847static void wt_status_print_verbose(struct wt_status *s)
 848{
 849        struct rev_info rev;
 850        struct setup_revision_opt opt;
 851        int dirty_submodules;
 852        const char *c = color(WT_STATUS_HEADER, s);
 853
 854        init_revisions(&rev, NULL);
 855        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 856
 857        memset(&opt, 0, sizeof(opt));
 858        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 859        setup_revisions(0, NULL, &rev, &opt);
 860
 861        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 862        rev.diffopt.detect_rename = 1;
 863        rev.diffopt.file = s->fp;
 864        rev.diffopt.close_file = 0;
 865        /*
 866         * If we're not going to stdout, then we definitely don't
 867         * want color, since we are going to the commit message
 868         * file (and even the "auto" setting won't work, since it
 869         * will have checked isatty on stdout). But we then do want
 870         * to insert the scissor line here to reliably remove the
 871         * diff before committing.
 872         */
 873        if (s->fp != stdout) {
 874                rev.diffopt.use_color = 0;
 875                wt_status_add_cut_line(s->fp);
 876        }
 877        if (s->verbose > 1 && s->commitable) {
 878                /* print_updated() printed a header, so do we */
 879                if (s->fp != stdout)
 880                        wt_status_print_trailer(s);
 881                status_printf_ln(s, c, _("Changes to be committed:"));
 882                rev.diffopt.a_prefix = "c/";
 883                rev.diffopt.b_prefix = "i/";
 884        } /* else use prefix as per user config */
 885        run_diff_index(&rev, 1);
 886        if (s->verbose > 1 &&
 887            wt_status_check_worktree_changes(s, &dirty_submodules)) {
 888                status_printf_ln(s, c,
 889                        "--------------------------------------------------");
 890                status_printf_ln(s, c, _("Changes not staged for commit:"));
 891                setup_work_tree();
 892                rev.diffopt.a_prefix = "i/";
 893                rev.diffopt.b_prefix = "w/";
 894                run_diff_files(&rev, 0);
 895        }
 896}
 897
 898static void wt_status_print_tracking(struct wt_status *s)
 899{
 900        struct strbuf sb = STRBUF_INIT;
 901        const char *cp, *ep, *branch_name;
 902        struct branch *branch;
 903        char comment_line_string[3];
 904        int i;
 905
 906        assert(s->branch && !s->is_initial);
 907        if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
 908                return;
 909        branch = branch_get(branch_name);
 910        if (!format_tracking_info(branch, &sb))
 911                return;
 912
 913        i = 0;
 914        if (s->display_comment_prefix) {
 915                comment_line_string[i++] = comment_line_char;
 916                comment_line_string[i++] = ' ';
 917        }
 918        comment_line_string[i] = '\0';
 919
 920        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 921                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 922                                 "%s%.*s", comment_line_string,
 923                                 (int)(ep - cp), cp);
 924        if (s->display_comment_prefix)
 925                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 926                                 comment_line_char);
 927        else
 928                fputs("", s->fp);
 929}
 930
 931static int has_unmerged(struct wt_status *s)
 932{
 933        int i;
 934
 935        for (i = 0; i < s->change.nr; i++) {
 936                struct wt_status_change_data *d;
 937                d = s->change.items[i].util;
 938                if (d->stagemask)
 939                        return 1;
 940        }
 941        return 0;
 942}
 943
 944static void show_merge_in_progress(struct wt_status *s,
 945                                struct wt_status_state *state,
 946                                const char *color)
 947{
 948        if (has_unmerged(s)) {
 949                status_printf_ln(s, color, _("You have unmerged paths."));
 950                if (s->hints)
 951                        status_printf_ln(s, color,
 952                                _("  (fix conflicts and run \"git commit\")"));
 953        } else {
 954                s-> commitable = 1;
 955                status_printf_ln(s, color,
 956                        _("All conflicts fixed but you are still merging."));
 957                if (s->hints)
 958                        status_printf_ln(s, color,
 959                                _("  (use \"git commit\" to conclude merge)"));
 960        }
 961        wt_status_print_trailer(s);
 962}
 963
 964static void show_am_in_progress(struct wt_status *s,
 965                                struct wt_status_state *state,
 966                                const char *color)
 967{
 968        status_printf_ln(s, color,
 969                _("You are in the middle of an am session."));
 970        if (state->am_empty_patch)
 971                status_printf_ln(s, color,
 972                        _("The current patch is empty."));
 973        if (s->hints) {
 974                if (!state->am_empty_patch)
 975                        status_printf_ln(s, color,
 976                                _("  (fix conflicts and then run \"git am --continue\")"));
 977                status_printf_ln(s, color,
 978                        _("  (use \"git am --skip\" to skip this patch)"));
 979                status_printf_ln(s, color,
 980                        _("  (use \"git am --abort\" to restore the original branch)"));
 981        }
 982        wt_status_print_trailer(s);
 983}
 984
 985static char *read_line_from_git_path(const char *filename)
 986{
 987        struct strbuf buf = STRBUF_INIT;
 988        FILE *fp = fopen(git_path("%s", filename), "r");
 989        if (!fp) {
 990                strbuf_release(&buf);
 991                return NULL;
 992        }
 993        strbuf_getline_lf(&buf, fp);
 994        if (!fclose(fp)) {
 995                return strbuf_detach(&buf, NULL);
 996        } else {
 997                strbuf_release(&buf);
 998                return NULL;
 999        }
1000}
1001
1002static int split_commit_in_progress(struct wt_status *s)
1003{
1004        int split_in_progress = 0;
1005        char *head = read_line_from_git_path("HEAD");
1006        char *orig_head = read_line_from_git_path("ORIG_HEAD");
1007        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
1008        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1009
1010        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
1011            !s->branch || strcmp(s->branch, "HEAD"))
1012                return split_in_progress;
1013
1014        if (!strcmp(rebase_amend, rebase_orig_head)) {
1015                if (strcmp(head, rebase_amend))
1016                        split_in_progress = 1;
1017        } else if (strcmp(orig_head, rebase_orig_head)) {
1018                split_in_progress = 1;
1019        }
1020
1021        if (!s->amend && !s->nowarn && !s->workdir_dirty)
1022                split_in_progress = 0;
1023
1024        free(head);
1025        free(orig_head);
1026        free(rebase_amend);
1027        free(rebase_orig_head);
1028        return split_in_progress;
1029}
1030
1031/*
1032 * Turn
1033 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1034 * into
1035 * "pick d6a2f03 some message"
1036 *
1037 * The function assumes that the line does not contain useless spaces
1038 * before or after the command.
1039 */
1040static void abbrev_sha1_in_line(struct strbuf *line)
1041{
1042        struct strbuf **split;
1043        int i;
1044
1045        if (starts_with(line->buf, "exec ") ||
1046            starts_with(line->buf, "x "))
1047                return;
1048
1049        split = strbuf_split_max(line, ' ', 3);
1050        if (split[0] && split[1]) {
1051                unsigned char sha1[20];
1052                const char *abbrev;
1053
1054                /*
1055                 * strbuf_split_max left a space. Trim it and re-add
1056                 * it after abbreviation.
1057                 */
1058                strbuf_trim(split[1]);
1059                if (!get_sha1(split[1]->buf, sha1)) {
1060                        abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1061                        strbuf_reset(split[1]);
1062                        strbuf_addf(split[1], "%s ", abbrev);
1063                        strbuf_reset(line);
1064                        for (i = 0; split[i]; i++)
1065                                strbuf_addf(line, "%s", split[i]->buf);
1066                }
1067        }
1068        strbuf_list_free(split);
1069}
1070
1071static void read_rebase_todolist(const char *fname, struct string_list *lines)
1072{
1073        struct strbuf line = STRBUF_INIT;
1074        FILE *f = fopen(git_path("%s", fname), "r");
1075
1076        if (!f)
1077                die_errno("Could not open file %s for reading",
1078                          git_path("%s", fname));
1079        while (!strbuf_getline_lf(&line, f)) {
1080                if (line.len && line.buf[0] == comment_line_char)
1081                        continue;
1082                strbuf_trim(&line);
1083                if (!line.len)
1084                        continue;
1085                abbrev_sha1_in_line(&line);
1086                string_list_append(lines, line.buf);
1087        }
1088}
1089
1090static void show_rebase_information(struct wt_status *s,
1091                                        struct wt_status_state *state,
1092                                        const char *color)
1093{
1094        if (state->rebase_interactive_in_progress) {
1095                int i;
1096                int nr_lines_to_show = 2;
1097
1098                struct string_list have_done = STRING_LIST_INIT_DUP;
1099                struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1100
1101                read_rebase_todolist("rebase-merge/done", &have_done);
1102                read_rebase_todolist("rebase-merge/git-rebase-todo", &yet_to_do);
1103
1104                if (have_done.nr == 0)
1105                        status_printf_ln(s, color, _("No commands done."));
1106                else {
1107                        status_printf_ln(s, color,
1108                                Q_("Last command done (%d command done):",
1109                                        "Last commands done (%d commands done):",
1110                                        have_done.nr),
1111                                have_done.nr);
1112                        for (i = (have_done.nr > nr_lines_to_show)
1113                                ? have_done.nr - nr_lines_to_show : 0;
1114                                i < have_done.nr;
1115                                i++)
1116                                status_printf_ln(s, color, "   %s", have_done.items[i].string);
1117                        if (have_done.nr > nr_lines_to_show && s->hints)
1118                                status_printf_ln(s, color,
1119                                        _("  (see more in file %s)"), git_path("rebase-merge/done"));
1120                }
1121
1122                if (yet_to_do.nr == 0)
1123                        status_printf_ln(s, color,
1124                                         _("No commands remaining."));
1125                else {
1126                        status_printf_ln(s, color,
1127                                Q_("Next command to do (%d remaining command):",
1128                                        "Next commands to do (%d remaining commands):",
1129                                        yet_to_do.nr),
1130                                yet_to_do.nr);
1131                        for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1132                                status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1133                        if (s->hints)
1134                                status_printf_ln(s, color,
1135                                        _("  (use \"git rebase --edit-todo\" to view and edit)"));
1136                }
1137                string_list_clear(&yet_to_do, 0);
1138                string_list_clear(&have_done, 0);
1139        }
1140}
1141
1142static void print_rebase_state(struct wt_status *s,
1143                                struct wt_status_state *state,
1144                                const char *color)
1145{
1146        if (state->branch)
1147                status_printf_ln(s, color,
1148                                 _("You are currently rebasing branch '%s' on '%s'."),
1149                                 state->branch,
1150                                 state->onto);
1151        else
1152                status_printf_ln(s, color,
1153                                 _("You are currently rebasing."));
1154}
1155
1156static void show_rebase_in_progress(struct wt_status *s,
1157                                struct wt_status_state *state,
1158                                const char *color)
1159{
1160        struct stat st;
1161
1162        show_rebase_information(s, state, color);
1163        if (has_unmerged(s)) {
1164                print_rebase_state(s, state, color);
1165                if (s->hints) {
1166                        status_printf_ln(s, color,
1167                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1168                        status_printf_ln(s, color,
1169                                _("  (use \"git rebase --skip\" to skip this patch)"));
1170                        status_printf_ln(s, color,
1171                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1172                }
1173        } else if (state->rebase_in_progress || !stat(git_path_merge_msg(), &st)) {
1174                print_rebase_state(s, state, color);
1175                if (s->hints)
1176                        status_printf_ln(s, color,
1177                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1178        } else if (split_commit_in_progress(s)) {
1179                if (state->branch)
1180                        status_printf_ln(s, color,
1181                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1182                                         state->branch,
1183                                         state->onto);
1184                else
1185                        status_printf_ln(s, color,
1186                                         _("You are currently splitting a commit during a rebase."));
1187                if (s->hints)
1188                        status_printf_ln(s, color,
1189                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1190        } else {
1191                if (state->branch)
1192                        status_printf_ln(s, color,
1193                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1194                                         state->branch,
1195                                         state->onto);
1196                else
1197                        status_printf_ln(s, color,
1198                                         _("You are currently editing a commit during a rebase."));
1199                if (s->hints && !s->amend) {
1200                        status_printf_ln(s, color,
1201                                _("  (use \"git commit --amend\" to amend the current commit)"));
1202                        status_printf_ln(s, color,
1203                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1204                }
1205        }
1206        wt_status_print_trailer(s);
1207}
1208
1209static void show_cherry_pick_in_progress(struct wt_status *s,
1210                                        struct wt_status_state *state,
1211                                        const char *color)
1212{
1213        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1214                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1215        if (s->hints) {
1216                if (has_unmerged(s))
1217                        status_printf_ln(s, color,
1218                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1219                else
1220                        status_printf_ln(s, color,
1221                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1222                status_printf_ln(s, color,
1223                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1224        }
1225        wt_status_print_trailer(s);
1226}
1227
1228static void show_revert_in_progress(struct wt_status *s,
1229                                        struct wt_status_state *state,
1230                                        const char *color)
1231{
1232        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1233                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1234        if (s->hints) {
1235                if (has_unmerged(s))
1236                        status_printf_ln(s, color,
1237                                _("  (fix conflicts and run \"git revert --continue\")"));
1238                else
1239                        status_printf_ln(s, color,
1240                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1241                status_printf_ln(s, color,
1242                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1243        }
1244        wt_status_print_trailer(s);
1245}
1246
1247static void show_bisect_in_progress(struct wt_status *s,
1248                                struct wt_status_state *state,
1249                                const char *color)
1250{
1251        if (state->branch)
1252                status_printf_ln(s, color,
1253                                 _("You are currently bisecting, started from branch '%s'."),
1254                                 state->branch);
1255        else
1256                status_printf_ln(s, color,
1257                                 _("You are currently bisecting."));
1258        if (s->hints)
1259                status_printf_ln(s, color,
1260                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1261        wt_status_print_trailer(s);
1262}
1263
1264/*
1265 * Extract branch information from rebase/bisect
1266 */
1267static char *get_branch(const struct worktree *wt, const char *path)
1268{
1269        struct strbuf sb = STRBUF_INIT;
1270        unsigned char sha1[20];
1271        const char *branch_name;
1272
1273        if (strbuf_read_file(&sb, worktree_git_path(wt, "%s", path), 0) <= 0)
1274                goto got_nothing;
1275
1276        while (sb.len && sb.buf[sb.len - 1] == '\n')
1277                strbuf_setlen(&sb, sb.len - 1);
1278        if (!sb.len)
1279                goto got_nothing;
1280        if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1281                strbuf_remove(&sb, 0, branch_name - sb.buf);
1282        else if (starts_with(sb.buf, "refs/"))
1283                ;
1284        else if (!get_sha1_hex(sb.buf, sha1)) {
1285                const char *abbrev;
1286                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1287                strbuf_reset(&sb);
1288                strbuf_addstr(&sb, abbrev);
1289        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1290                goto got_nothing;
1291        else                    /* bisect */
1292                ;
1293        return strbuf_detach(&sb, NULL);
1294
1295got_nothing:
1296        strbuf_release(&sb);
1297        return NULL;
1298}
1299
1300struct grab_1st_switch_cbdata {
1301        struct strbuf buf;
1302        unsigned char nsha1[20];
1303};
1304
1305static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1306                           const char *email, unsigned long timestamp, int tz,
1307                           const char *message, void *cb_data)
1308{
1309        struct grab_1st_switch_cbdata *cb = cb_data;
1310        const char *target = NULL, *end;
1311
1312        if (!skip_prefix(message, "checkout: moving from ", &message))
1313                return 0;
1314        target = strstr(message, " to ");
1315        if (!target)
1316                return 0;
1317        target += strlen(" to ");
1318        strbuf_reset(&cb->buf);
1319        hashcpy(cb->nsha1, nsha1);
1320        end = strchrnul(target, '\n');
1321        strbuf_add(&cb->buf, target, end - target);
1322        if (!strcmp(cb->buf.buf, "HEAD")) {
1323                /* HEAD is relative. Resolve it to the right reflog entry. */
1324                strbuf_reset(&cb->buf);
1325                strbuf_addstr(&cb->buf,
1326                              find_unique_abbrev(nsha1, DEFAULT_ABBREV));
1327        }
1328        return 1;
1329}
1330
1331static void wt_status_get_detached_from(struct wt_status_state *state)
1332{
1333        struct grab_1st_switch_cbdata cb;
1334        struct commit *commit;
1335        unsigned char sha1[20];
1336        char *ref = NULL;
1337
1338        strbuf_init(&cb.buf, 0);
1339        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1340                strbuf_release(&cb.buf);
1341                return;
1342        }
1343
1344        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1345            /* sha1 is a commit? match without further lookup */
1346            (!hashcmp(cb.nsha1, sha1) ||
1347             /* perhaps sha1 is a tag, try to dereference to a commit */
1348             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1349              !hashcmp(cb.nsha1, commit->object.oid.hash)))) {
1350                const char *from = ref;
1351                if (!skip_prefix(from, "refs/tags/", &from))
1352                        skip_prefix(from, "refs/remotes/", &from);
1353                state->detached_from = xstrdup(from);
1354        } else
1355                state->detached_from =
1356                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1357        hashcpy(state->detached_sha1, cb.nsha1);
1358        state->detached_at = !get_sha1("HEAD", sha1) &&
1359                             !hashcmp(sha1, state->detached_sha1);
1360
1361        free(ref);
1362        strbuf_release(&cb.buf);
1363}
1364
1365int wt_status_check_rebase(const struct worktree *wt,
1366                           struct wt_status_state *state)
1367{
1368        struct stat st;
1369
1370        if (!stat(worktree_git_path(wt, "rebase-apply"), &st)) {
1371                if (!stat(worktree_git_path(wt, "rebase-apply/applying"), &st)) {
1372                        state->am_in_progress = 1;
1373                        if (!stat(worktree_git_path(wt, "rebase-apply/patch"), &st) && !st.st_size)
1374                                state->am_empty_patch = 1;
1375                } else {
1376                        state->rebase_in_progress = 1;
1377                        state->branch = get_branch(wt, "rebase-apply/head-name");
1378                        state->onto = get_branch(wt, "rebase-apply/onto");
1379                }
1380        } else if (!stat(worktree_git_path(wt, "rebase-merge"), &st)) {
1381                if (!stat(worktree_git_path(wt, "rebase-merge/interactive"), &st))
1382                        state->rebase_interactive_in_progress = 1;
1383                else
1384                        state->rebase_in_progress = 1;
1385                state->branch = get_branch(wt, "rebase-merge/head-name");
1386                state->onto = get_branch(wt, "rebase-merge/onto");
1387        } else
1388                return 0;
1389        return 1;
1390}
1391
1392int wt_status_check_bisect(const struct worktree *wt,
1393                           struct wt_status_state *state)
1394{
1395        struct stat st;
1396
1397        if (!stat(worktree_git_path(wt, "BISECT_LOG"), &st)) {
1398                state->bisect_in_progress = 1;
1399                state->branch = get_branch(wt, "BISECT_START");
1400                return 1;
1401        }
1402        return 0;
1403}
1404
1405void wt_status_get_state(struct wt_status_state *state,
1406                         int get_detached_from)
1407{
1408        struct stat st;
1409        unsigned char sha1[20];
1410
1411        if (!stat(git_path_merge_head(), &st)) {
1412                state->merge_in_progress = 1;
1413        } else if (wt_status_check_rebase(NULL, state)) {
1414                ;               /* all set */
1415        } else if (!stat(git_path_cherry_pick_head(), &st) &&
1416                        !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1417                state->cherry_pick_in_progress = 1;
1418                hashcpy(state->cherry_pick_head_sha1, sha1);
1419        }
1420        wt_status_check_bisect(NULL, state);
1421        if (!stat(git_path_revert_head(), &st) &&
1422            !get_sha1("REVERT_HEAD", sha1)) {
1423                state->revert_in_progress = 1;
1424                hashcpy(state->revert_head_sha1, sha1);
1425        }
1426
1427        if (get_detached_from)
1428                wt_status_get_detached_from(state);
1429}
1430
1431static void wt_status_print_state(struct wt_status *s,
1432                                  struct wt_status_state *state)
1433{
1434        const char *state_color = color(WT_STATUS_HEADER, s);
1435        if (state->merge_in_progress)
1436                show_merge_in_progress(s, state, state_color);
1437        else if (state->am_in_progress)
1438                show_am_in_progress(s, state, state_color);
1439        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1440                show_rebase_in_progress(s, state, state_color);
1441        else if (state->cherry_pick_in_progress)
1442                show_cherry_pick_in_progress(s, state, state_color);
1443        else if (state->revert_in_progress)
1444                show_revert_in_progress(s, state, state_color);
1445        if (state->bisect_in_progress)
1446                show_bisect_in_progress(s, state, state_color);
1447}
1448
1449void wt_status_print(struct wt_status *s)
1450{
1451        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1452        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1453        struct wt_status_state state;
1454
1455        memset(&state, 0, sizeof(state));
1456        wt_status_get_state(&state,
1457                            s->branch && !strcmp(s->branch, "HEAD"));
1458
1459        if (s->branch) {
1460                const char *on_what = _("On branch ");
1461                const char *branch_name = s->branch;
1462                if (!strcmp(branch_name, "HEAD")) {
1463                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1464                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1465                                if (state.rebase_interactive_in_progress)
1466                                        on_what = _("interactive rebase in progress; onto ");
1467                                else
1468                                        on_what = _("rebase in progress; onto ");
1469                                branch_name = state.onto;
1470                        } else if (state.detached_from) {
1471                                branch_name = state.detached_from;
1472                                if (state.detached_at)
1473                                        on_what = _("HEAD detached at ");
1474                                else
1475                                        on_what = _("HEAD detached from ");
1476                        } else {
1477                                branch_name = "";
1478                                on_what = _("Not currently on any branch.");
1479                        }
1480                } else
1481                        skip_prefix(branch_name, "refs/heads/", &branch_name);
1482                status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1483                status_printf_more(s, branch_status_color, "%s", on_what);
1484                status_printf_more(s, branch_color, "%s\n", branch_name);
1485                if (!s->is_initial)
1486                        wt_status_print_tracking(s);
1487        }
1488
1489        wt_status_print_state(s, &state);
1490        free(state.branch);
1491        free(state.onto);
1492        free(state.detached_from);
1493
1494        if (s->is_initial) {
1495                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1496                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1497                status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1498        }
1499
1500        wt_status_print_updated(s);
1501        wt_status_print_unmerged(s);
1502        wt_status_print_changed(s);
1503        if (s->submodule_summary &&
1504            (!s->ignore_submodule_arg ||
1505             strcmp(s->ignore_submodule_arg, "all"))) {
1506                wt_status_print_submodule_summary(s, 0);  /* staged */
1507                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1508        }
1509        if (s->show_untracked_files) {
1510                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1511                if (s->show_ignored_files)
1512                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1513                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1514                        status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1515                        status_printf_ln(s, GIT_COLOR_NORMAL,
1516                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1517                                           "may speed it up, but you have to be careful not to forget to add\n"
1518                                           "new files yourself (see 'git help status')."),
1519                                         s->untracked_in_ms / 1000.0);
1520                }
1521        } else if (s->commitable)
1522                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1523                        s->hints
1524                        ? _(" (use -u option to show untracked files)") : "");
1525
1526        if (s->verbose)
1527                wt_status_print_verbose(s);
1528        if (!s->commitable) {
1529                if (s->amend)
1530                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1531                else if (s->nowarn)
1532                        ; /* nothing */
1533                else if (s->workdir_dirty) {
1534                        if (s->hints)
1535                                printf(_("no changes added to commit "
1536                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1537                        else
1538                                printf(_("no changes added to commit\n"));
1539                } else if (s->untracked.nr) {
1540                        if (s->hints)
1541                                printf(_("nothing added to commit but untracked files "
1542                                         "present (use \"git add\" to track)\n"));
1543                        else
1544                                printf(_("nothing added to commit but untracked files present\n"));
1545                } else if (s->is_initial) {
1546                        if (s->hints)
1547                                printf(_("nothing to commit (create/copy files "
1548                                         "and use \"git add\" to track)\n"));
1549                        else
1550                                printf(_("nothing to commit\n"));
1551                } else if (!s->show_untracked_files) {
1552                        if (s->hints)
1553                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1554                        else
1555                                printf(_("nothing to commit\n"));
1556                } else
1557                        printf(_("nothing to commit, working tree clean\n"));
1558        }
1559}
1560
1561static void wt_shortstatus_unmerged(struct string_list_item *it,
1562                           struct wt_status *s)
1563{
1564        struct wt_status_change_data *d = it->util;
1565        const char *how = "??";
1566
1567        switch (d->stagemask) {
1568        case 1: how = "DD"; break; /* both deleted */
1569        case 2: how = "AU"; break; /* added by us */
1570        case 3: how = "UD"; break; /* deleted by them */
1571        case 4: how = "UA"; break; /* added by them */
1572        case 5: how = "DU"; break; /* deleted by us */
1573        case 6: how = "AA"; break; /* both added */
1574        case 7: how = "UU"; break; /* both modified */
1575        }
1576        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1577        if (s->null_termination) {
1578                fprintf(stdout, " %s%c", it->string, 0);
1579        } else {
1580                struct strbuf onebuf = STRBUF_INIT;
1581                const char *one;
1582                one = quote_path(it->string, s->prefix, &onebuf);
1583                printf(" %s\n", one);
1584                strbuf_release(&onebuf);
1585        }
1586}
1587
1588static void wt_shortstatus_status(struct string_list_item *it,
1589                         struct wt_status *s)
1590{
1591        struct wt_status_change_data *d = it->util;
1592
1593        if (d->index_status)
1594                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1595        else
1596                putchar(' ');
1597        if (d->worktree_status)
1598                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1599        else
1600                putchar(' ');
1601        putchar(' ');
1602        if (s->null_termination) {
1603                fprintf(stdout, "%s%c", it->string, 0);
1604                if (d->head_path)
1605                        fprintf(stdout, "%s%c", d->head_path, 0);
1606        } else {
1607                struct strbuf onebuf = STRBUF_INIT;
1608                const char *one;
1609                if (d->head_path) {
1610                        one = quote_path(d->head_path, s->prefix, &onebuf);
1611                        if (*one != '"' && strchr(one, ' ') != NULL) {
1612                                putchar('"');
1613                                strbuf_addch(&onebuf, '"');
1614                                one = onebuf.buf;
1615                        }
1616                        printf("%s -> ", one);
1617                        strbuf_release(&onebuf);
1618                }
1619                one = quote_path(it->string, s->prefix, &onebuf);
1620                if (*one != '"' && strchr(one, ' ') != NULL) {
1621                        putchar('"');
1622                        strbuf_addch(&onebuf, '"');
1623                        one = onebuf.buf;
1624                }
1625                printf("%s\n", one);
1626                strbuf_release(&onebuf);
1627        }
1628}
1629
1630static void wt_shortstatus_other(struct string_list_item *it,
1631                                 struct wt_status *s, const char *sign)
1632{
1633        if (s->null_termination) {
1634                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1635        } else {
1636                struct strbuf onebuf = STRBUF_INIT;
1637                const char *one;
1638                one = quote_path(it->string, s->prefix, &onebuf);
1639                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1640                printf(" %s\n", one);
1641                strbuf_release(&onebuf);
1642        }
1643}
1644
1645static void wt_shortstatus_print_tracking(struct wt_status *s)
1646{
1647        struct branch *branch;
1648        const char *header_color = color(WT_STATUS_HEADER, s);
1649        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1650        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1651
1652        const char *base;
1653        const char *branch_name;
1654        int num_ours, num_theirs;
1655        int upstream_is_gone = 0;
1656
1657        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1658
1659        if (!s->branch)
1660                return;
1661        branch_name = s->branch;
1662
1663        if (s->is_initial)
1664                color_fprintf(s->fp, header_color, _("Initial commit on "));
1665
1666        if (!strcmp(s->branch, "HEAD")) {
1667                color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
1668                              _("HEAD (no branch)"));
1669                goto conclude;
1670        }
1671
1672        skip_prefix(branch_name, "refs/heads/", &branch_name);
1673
1674        branch = branch_get(branch_name);
1675
1676        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1677
1678        if (stat_tracking_info(branch, &num_ours, &num_theirs, &base) < 0) {
1679                if (!base)
1680                        goto conclude;
1681
1682                upstream_is_gone = 1;
1683        }
1684
1685        base = shorten_unambiguous_ref(base, 0);
1686        color_fprintf(s->fp, header_color, "...");
1687        color_fprintf(s->fp, branch_color_remote, "%s", base);
1688        free((char *)base);
1689
1690        if (!upstream_is_gone && !num_ours && !num_theirs)
1691                goto conclude;
1692
1693#define LABEL(string) (s->no_gettext ? (string) : _(string))
1694
1695        color_fprintf(s->fp, header_color, " [");
1696        if (upstream_is_gone) {
1697                color_fprintf(s->fp, header_color, LABEL(N_("gone")));
1698        } else if (!num_ours) {
1699                color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
1700                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1701        } else if (!num_theirs) {
1702                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1703                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1704        } else {
1705                color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
1706                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1707                color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
1708                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1709        }
1710
1711        color_fprintf(s->fp, header_color, "]");
1712 conclude:
1713        fputc(s->null_termination ? '\0' : '\n', s->fp);
1714}
1715
1716void wt_shortstatus_print(struct wt_status *s)
1717{
1718        int i;
1719
1720        if (s->show_branch)
1721                wt_shortstatus_print_tracking(s);
1722
1723        for (i = 0; i < s->change.nr; i++) {
1724                struct wt_status_change_data *d;
1725                struct string_list_item *it;
1726
1727                it = &(s->change.items[i]);
1728                d = it->util;
1729                if (d->stagemask)
1730                        wt_shortstatus_unmerged(it, s);
1731                else
1732                        wt_shortstatus_status(it, s);
1733        }
1734        for (i = 0; i < s->untracked.nr; i++) {
1735                struct string_list_item *it;
1736
1737                it = &(s->untracked.items[i]);
1738                wt_shortstatus_other(it, s, "??");
1739        }
1740        for (i = 0; i < s->ignored.nr; i++) {
1741                struct string_list_item *it;
1742
1743                it = &(s->ignored.items[i]);
1744                wt_shortstatus_other(it, s, "!!");
1745        }
1746}
1747
1748void wt_porcelain_print(struct wt_status *s)
1749{
1750        s->use_color = 0;
1751        s->relative_paths = 0;
1752        s->prefix = NULL;
1753        s->no_gettext = 1;
1754        wt_shortstatus_print(s);
1755}