db98c52d452f326fdf01217671a896e39b6aba22
   1#include "cache.h"
   2#include "pathspec.h"
   3#include "wt-status.h"
   4#include "object.h"
   5#include "dir.h"
   6#include "commit.h"
   7#include "diff.h"
   8#include "revision.h"
   9#include "diffcore.h"
  10#include "quote.h"
  11#include "run-command.h"
  12#include "argv-array.h"
  13#include "remote.h"
  14#include "refs.h"
  15#include "submodule.h"
  16#include "column.h"
  17#include "strbuf.h"
  18#include "utf8.h"
  19
  20static char cut_line[] =
  21"------------------------ >8 ------------------------\n";
  22
  23static char default_wt_status_colors[][COLOR_MAXLEN] = {
  24        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  25        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  26        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  27        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  28        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  29        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  30        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  31        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  32        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  33};
  34
  35static const char *color(int slot, struct wt_status *s)
  36{
  37        const char *c = "";
  38        if (want_color(s->use_color))
  39                c = s->color_palette[slot];
  40        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  41                c = s->color_palette[WT_STATUS_HEADER];
  42        return c;
  43}
  44
  45static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  46                const char *fmt, va_list ap, const char *trail)
  47{
  48        struct strbuf sb = STRBUF_INIT;
  49        struct strbuf linebuf = STRBUF_INIT;
  50        const char *line, *eol;
  51
  52        strbuf_vaddf(&sb, fmt, ap);
  53        if (!sb.len) {
  54                if (s->display_comment_prefix) {
  55                        strbuf_addch(&sb, comment_line_char);
  56                        if (!trail)
  57                                strbuf_addch(&sb, ' ');
  58                }
  59                color_print_strbuf(s->fp, color, &sb);
  60                if (trail)
  61                        fprintf(s->fp, "%s", trail);
  62                strbuf_release(&sb);
  63                return;
  64        }
  65        for (line = sb.buf; *line; line = eol + 1) {
  66                eol = strchr(line, '\n');
  67
  68                strbuf_reset(&linebuf);
  69                if (at_bol && s->display_comment_prefix) {
  70                        strbuf_addch(&linebuf, comment_line_char);
  71                        if (*line != '\n' && *line != '\t')
  72                                strbuf_addch(&linebuf, ' ');
  73                }
  74                if (eol)
  75                        strbuf_add(&linebuf, line, eol - line);
  76                else
  77                        strbuf_addstr(&linebuf, line);
  78                color_print_strbuf(s->fp, color, &linebuf);
  79                if (eol)
  80                        fprintf(s->fp, "\n");
  81                else
  82                        break;
  83                at_bol = 1;
  84        }
  85        if (trail)
  86                fprintf(s->fp, "%s", trail);
  87        strbuf_release(&linebuf);
  88        strbuf_release(&sb);
  89}
  90
  91void status_printf_ln(struct wt_status *s, const char *color,
  92                        const char *fmt, ...)
  93{
  94        va_list ap;
  95
  96        va_start(ap, fmt);
  97        status_vprintf(s, 1, color, fmt, ap, "\n");
  98        va_end(ap);
  99}
 100
 101void status_printf(struct wt_status *s, const char *color,
 102                        const char *fmt, ...)
 103{
 104        va_list ap;
 105
 106        va_start(ap, fmt);
 107        status_vprintf(s, 1, color, fmt, ap, NULL);
 108        va_end(ap);
 109}
 110
 111static void status_printf_more(struct wt_status *s, const char *color,
 112                               const char *fmt, ...)
 113{
 114        va_list ap;
 115
 116        va_start(ap, fmt);
 117        status_vprintf(s, 0, color, fmt, ap, NULL);
 118        va_end(ap);
 119}
 120
 121void wt_status_prepare(struct wt_status *s)
 122{
 123        unsigned char sha1[20];
 124
 125        memset(s, 0, sizeof(*s));
 126        memcpy(s->color_palette, default_wt_status_colors,
 127               sizeof(default_wt_status_colors));
 128        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 129        s->use_color = -1;
 130        s->relative_paths = 1;
 131        s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 132        s->reference = "HEAD";
 133        s->fp = stdout;
 134        s->index_file = get_index_file();
 135        s->change.strdup_strings = 1;
 136        s->untracked.strdup_strings = 1;
 137        s->ignored.strdup_strings = 1;
 138        s->show_branch = -1;  /* unspecified */
 139        s->display_comment_prefix = 0;
 140}
 141
 142static void wt_status_print_unmerged_header(struct wt_status *s)
 143{
 144        int i;
 145        int del_mod_conflict = 0;
 146        int both_deleted = 0;
 147        int not_deleted = 0;
 148        const char *c = color(WT_STATUS_HEADER, s);
 149
 150        status_printf_ln(s, c, _("Unmerged paths:"));
 151
 152        for (i = 0; i < s->change.nr; i++) {
 153                struct string_list_item *it = &(s->change.items[i]);
 154                struct wt_status_change_data *d = it->util;
 155
 156                switch (d->stagemask) {
 157                case 0:
 158                        break;
 159                case 1:
 160                        both_deleted = 1;
 161                        break;
 162                case 3:
 163                case 5:
 164                        del_mod_conflict = 1;
 165                        break;
 166                default:
 167                        not_deleted = 1;
 168                        break;
 169                }
 170        }
 171
 172        if (!s->hints)
 173                return;
 174        if (s->whence != FROM_COMMIT)
 175                ;
 176        else if (!s->is_initial)
 177                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 178        else
 179                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 180
 181        if (!both_deleted) {
 182                if (!del_mod_conflict)
 183                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 184                else
 185                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 186        } else if (!del_mod_conflict && !not_deleted) {
 187                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 188        } else {
 189                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 190        }
 191        status_printf_ln(s, c, "");
 192}
 193
 194static void wt_status_print_cached_header(struct wt_status *s)
 195{
 196        const char *c = color(WT_STATUS_HEADER, s);
 197
 198        status_printf_ln(s, c, _("Changes to be committed:"));
 199        if (!s->hints)
 200                return;
 201        if (s->whence != FROM_COMMIT)
 202                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 203        else if (!s->is_initial)
 204                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 205        else
 206                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 207        status_printf_ln(s, c, "");
 208}
 209
 210static void wt_status_print_dirty_header(struct wt_status *s,
 211                                         int has_deleted,
 212                                         int has_dirty_submodules)
 213{
 214        const char *c = color(WT_STATUS_HEADER, s);
 215
 216        status_printf_ln(s, c, _("Changes not staged for commit:"));
 217        if (!s->hints)
 218                return;
 219        if (!has_deleted)
 220                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 221        else
 222                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 223        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 224        if (has_dirty_submodules)
 225                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 226        status_printf_ln(s, c, "");
 227}
 228
 229static void wt_status_print_other_header(struct wt_status *s,
 230                                         const char *what,
 231                                         const char *how)
 232{
 233        const char *c = color(WT_STATUS_HEADER, s);
 234        status_printf_ln(s, c, "%s:", what);
 235        if (!s->hints)
 236                return;
 237        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 238        status_printf_ln(s, c, "");
 239}
 240
 241static void wt_status_print_trailer(struct wt_status *s)
 242{
 243        status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 244}
 245
 246#define quote_path quote_path_relative
 247
 248static void wt_status_print_unmerged_data(struct wt_status *s,
 249                                          struct string_list_item *it)
 250{
 251        const char *c = color(WT_STATUS_UNMERGED, s);
 252        struct wt_status_change_data *d = it->util;
 253        struct strbuf onebuf = STRBUF_INIT;
 254        const char *one, *how = _("bug");
 255
 256        one = quote_path(it->string, s->prefix, &onebuf);
 257        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 258        switch (d->stagemask) {
 259        case 1: how = _("both deleted:"); break;
 260        case 2: how = _("added by us:"); break;
 261        case 3: how = _("deleted by them:"); break;
 262        case 4: how = _("added by them:"); break;
 263        case 5: how = _("deleted by us:"); break;
 264        case 6: how = _("both added:"); break;
 265        case 7: how = _("both modified:"); break;
 266        }
 267        status_printf_more(s, c, "%-20s%s\n", how, one);
 268        strbuf_release(&onebuf);
 269}
 270
 271static const char *wt_status_diff_status_string(int status)
 272{
 273        switch (status) {
 274        case DIFF_STATUS_ADDED:
 275                return _("new file:");
 276        case DIFF_STATUS_COPIED:
 277                return _("copied:");
 278        case DIFF_STATUS_DELETED:
 279                return _("deleted:");
 280        case DIFF_STATUS_MODIFIED:
 281                return _("modified:");
 282        case DIFF_STATUS_RENAMED:
 283                return _("renamed:");
 284        case DIFF_STATUS_TYPE_CHANGED:
 285                return _("typechange:");
 286        case DIFF_STATUS_UNKNOWN:
 287                return _("unknown:");
 288        case DIFF_STATUS_UNMERGED:
 289                return _("unmerged:");
 290        default:
 291                return NULL;
 292        }
 293}
 294
 295static int maxwidth(const char *(*label)(int), int minval, int maxval)
 296{
 297        int result = 0, i;
 298
 299        for (i = minval; i <= maxval; i++) {
 300                const char *s = label(i);
 301                int len = s ? utf8_strwidth(s) : 0;
 302                if (len > result)
 303                        result = len;
 304        }
 305        return result;
 306}
 307
 308static void wt_status_print_change_data(struct wt_status *s,
 309                                        int change_type,
 310                                        struct string_list_item *it)
 311{
 312        struct wt_status_change_data *d = it->util;
 313        const char *c = color(change_type, s);
 314        int status;
 315        char *one_name;
 316        char *two_name;
 317        const char *one, *two;
 318        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 319        struct strbuf extra = STRBUF_INIT;
 320        static char *padding;
 321        static int label_width;
 322        const char *what;
 323        int len;
 324
 325        if (!padding) {
 326                /* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
 327                label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
 328                label_width += strlen(" ");
 329                padding = xmallocz(label_width);
 330                memset(padding, ' ', label_width);
 331        }
 332
 333        one_name = two_name = it->string;
 334        switch (change_type) {
 335        case WT_STATUS_UPDATED:
 336                status = d->index_status;
 337                if (d->head_path)
 338                        one_name = d->head_path;
 339                break;
 340        case WT_STATUS_CHANGED:
 341                if (d->new_submodule_commits || d->dirty_submodule) {
 342                        strbuf_addstr(&extra, " (");
 343                        if (d->new_submodule_commits)
 344                                strbuf_addf(&extra, _("new commits, "));
 345                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 346                                strbuf_addf(&extra, _("modified content, "));
 347                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 348                                strbuf_addf(&extra, _("untracked content, "));
 349                        strbuf_setlen(&extra, extra.len - 2);
 350                        strbuf_addch(&extra, ')');
 351                }
 352                status = d->worktree_status;
 353                break;
 354        default:
 355                die("BUG: unhandled change_type %d in wt_status_print_change_data",
 356                    change_type);
 357        }
 358
 359        one = quote_path(one_name, s->prefix, &onebuf);
 360        two = quote_path(two_name, s->prefix, &twobuf);
 361
 362        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 363        what = wt_status_diff_status_string(status);
 364        if (!what)
 365                die(_("bug: unhandled diff status %c"), status);
 366        len = label_width - utf8_strwidth(what);
 367        assert(len >= 0);
 368        if (status == DIFF_STATUS_COPIED || status == DIFF_STATUS_RENAMED)
 369                status_printf_more(s, c, "%s%.*s%s -> %s",
 370                                   what, len, padding, one, two);
 371        else
 372                status_printf_more(s, c, "%s%.*s%s",
 373                                   what, len, padding, one);
 374        if (extra.len) {
 375                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 376                strbuf_release(&extra);
 377        }
 378        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 379        strbuf_release(&onebuf);
 380        strbuf_release(&twobuf);
 381}
 382
 383static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 384                                         struct diff_options *options,
 385                                         void *data)
 386{
 387        struct wt_status *s = data;
 388        int i;
 389
 390        if (!q->nr)
 391                return;
 392        s->workdir_dirty = 1;
 393        for (i = 0; i < q->nr; i++) {
 394                struct diff_filepair *p;
 395                struct string_list_item *it;
 396                struct wt_status_change_data *d;
 397
 398                p = q->queue[i];
 399                it = string_list_insert(&s->change, p->one->path);
 400                d = it->util;
 401                if (!d) {
 402                        d = xcalloc(1, sizeof(*d));
 403                        it->util = d;
 404                }
 405                if (!d->worktree_status)
 406                        d->worktree_status = p->status;
 407                d->dirty_submodule = p->two->dirty_submodule;
 408                if (S_ISGITLINK(p->two->mode))
 409                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 410        }
 411}
 412
 413static int unmerged_mask(const char *path)
 414{
 415        int pos, mask;
 416        const struct cache_entry *ce;
 417
 418        pos = cache_name_pos(path, strlen(path));
 419        if (0 <= pos)
 420                return 0;
 421
 422        mask = 0;
 423        pos = -pos-1;
 424        while (pos < active_nr) {
 425                ce = active_cache[pos++];
 426                if (strcmp(ce->name, path) || !ce_stage(ce))
 427                        break;
 428                mask |= (1 << (ce_stage(ce) - 1));
 429        }
 430        return mask;
 431}
 432
 433static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 434                                         struct diff_options *options,
 435                                         void *data)
 436{
 437        struct wt_status *s = data;
 438        int i;
 439
 440        for (i = 0; i < q->nr; i++) {
 441                struct diff_filepair *p;
 442                struct string_list_item *it;
 443                struct wt_status_change_data *d;
 444
 445                p = q->queue[i];
 446                it = string_list_insert(&s->change, p->two->path);
 447                d = it->util;
 448                if (!d) {
 449                        d = xcalloc(1, sizeof(*d));
 450                        it->util = d;
 451                }
 452                if (!d->index_status)
 453                        d->index_status = p->status;
 454                switch (p->status) {
 455                case DIFF_STATUS_COPIED:
 456                case DIFF_STATUS_RENAMED:
 457                        d->head_path = xstrdup(p->one->path);
 458                        break;
 459                case DIFF_STATUS_UNMERGED:
 460                        d->stagemask = unmerged_mask(p->two->path);
 461                        break;
 462                }
 463        }
 464}
 465
 466static void wt_status_collect_changes_worktree(struct wt_status *s)
 467{
 468        struct rev_info rev;
 469
 470        init_revisions(&rev, NULL);
 471        setup_revisions(0, NULL, &rev, NULL);
 472        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 473        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 474        if (!s->show_untracked_files)
 475                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 476        if (s->ignore_submodule_arg) {
 477                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 478                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 479        }
 480        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 481        rev.diffopt.format_callback_data = s;
 482        copy_pathspec(&rev.prune_data, &s->pathspec);
 483        run_diff_files(&rev, 0);
 484}
 485
 486static void wt_status_collect_changes_index(struct wt_status *s)
 487{
 488        struct rev_info rev;
 489        struct setup_revision_opt opt;
 490
 491        init_revisions(&rev, NULL);
 492        memset(&opt, 0, sizeof(opt));
 493        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 494        setup_revisions(0, NULL, &rev, &opt);
 495
 496        if (s->ignore_submodule_arg) {
 497                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 498                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 499        }
 500
 501        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 502        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 503        rev.diffopt.format_callback_data = s;
 504        rev.diffopt.detect_rename = 1;
 505        rev.diffopt.rename_limit = 200;
 506        rev.diffopt.break_opt = 0;
 507        copy_pathspec(&rev.prune_data, &s->pathspec);
 508        run_diff_index(&rev, 1);
 509}
 510
 511static void wt_status_collect_changes_initial(struct wt_status *s)
 512{
 513        int i;
 514
 515        for (i = 0; i < active_nr; i++) {
 516                struct string_list_item *it;
 517                struct wt_status_change_data *d;
 518                const struct cache_entry *ce = active_cache[i];
 519
 520                if (!ce_path_match(ce, &s->pathspec))
 521                        continue;
 522                it = string_list_insert(&s->change, ce->name);
 523                d = it->util;
 524                if (!d) {
 525                        d = xcalloc(1, sizeof(*d));
 526                        it->util = d;
 527                }
 528                if (ce_stage(ce)) {
 529                        d->index_status = DIFF_STATUS_UNMERGED;
 530                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 531                }
 532                else
 533                        d->index_status = DIFF_STATUS_ADDED;
 534        }
 535}
 536
 537static void wt_status_collect_untracked(struct wt_status *s)
 538{
 539        int i;
 540        struct dir_struct dir;
 541        struct timeval t_begin;
 542
 543        if (!s->show_untracked_files)
 544                return;
 545
 546        if (advice_status_u_option)
 547                gettimeofday(&t_begin, NULL);
 548
 549        memset(&dir, 0, sizeof(dir));
 550        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 551                dir.flags |=
 552                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 553        if (s->show_ignored_files)
 554                dir.flags |= DIR_SHOW_IGNORED_TOO;
 555        setup_standard_excludes(&dir);
 556
 557        fill_directory(&dir, &s->pathspec);
 558
 559        for (i = 0; i < dir.nr; i++) {
 560                struct dir_entry *ent = dir.entries[i];
 561                if (cache_name_is_other(ent->name, ent->len) &&
 562                    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 563                        string_list_insert(&s->untracked, ent->name);
 564                free(ent);
 565        }
 566
 567        for (i = 0; i < dir.ignored_nr; i++) {
 568                struct dir_entry *ent = dir.ignored[i];
 569                if (cache_name_is_other(ent->name, ent->len) &&
 570                    match_pathspec_depth(&s->pathspec, ent->name, ent->len, 0, NULL))
 571                        string_list_insert(&s->ignored, ent->name);
 572                free(ent);
 573        }
 574
 575        free(dir.entries);
 576        free(dir.ignored);
 577        clear_directory(&dir);
 578
 579        if (advice_status_u_option) {
 580                struct timeval t_end;
 581                gettimeofday(&t_end, NULL);
 582                s->untracked_in_ms =
 583                        (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 584                        ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 585        }
 586}
 587
 588void wt_status_collect(struct wt_status *s)
 589{
 590        wt_status_collect_changes_worktree(s);
 591
 592        if (s->is_initial)
 593                wt_status_collect_changes_initial(s);
 594        else
 595                wt_status_collect_changes_index(s);
 596        wt_status_collect_untracked(s);
 597}
 598
 599static void wt_status_print_unmerged(struct wt_status *s)
 600{
 601        int shown_header = 0;
 602        int i;
 603
 604        for (i = 0; i < s->change.nr; i++) {
 605                struct wt_status_change_data *d;
 606                struct string_list_item *it;
 607                it = &(s->change.items[i]);
 608                d = it->util;
 609                if (!d->stagemask)
 610                        continue;
 611                if (!shown_header) {
 612                        wt_status_print_unmerged_header(s);
 613                        shown_header = 1;
 614                }
 615                wt_status_print_unmerged_data(s, it);
 616        }
 617        if (shown_header)
 618                wt_status_print_trailer(s);
 619
 620}
 621
 622static void wt_status_print_updated(struct wt_status *s)
 623{
 624        int shown_header = 0;
 625        int i;
 626
 627        for (i = 0; i < s->change.nr; i++) {
 628                struct wt_status_change_data *d;
 629                struct string_list_item *it;
 630                it = &(s->change.items[i]);
 631                d = it->util;
 632                if (!d->index_status ||
 633                    d->index_status == DIFF_STATUS_UNMERGED)
 634                        continue;
 635                if (!shown_header) {
 636                        wt_status_print_cached_header(s);
 637                        s->commitable = 1;
 638                        shown_header = 1;
 639                }
 640                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 641        }
 642        if (shown_header)
 643                wt_status_print_trailer(s);
 644}
 645
 646/*
 647 * -1 : has delete
 648 *  0 : no change
 649 *  1 : some change but no delete
 650 */
 651static int wt_status_check_worktree_changes(struct wt_status *s,
 652                                             int *dirty_submodules)
 653{
 654        int i;
 655        int changes = 0;
 656
 657        *dirty_submodules = 0;
 658
 659        for (i = 0; i < s->change.nr; i++) {
 660                struct wt_status_change_data *d;
 661                d = s->change.items[i].util;
 662                if (!d->worktree_status ||
 663                    d->worktree_status == DIFF_STATUS_UNMERGED)
 664                        continue;
 665                if (!changes)
 666                        changes = 1;
 667                if (d->dirty_submodule)
 668                        *dirty_submodules = 1;
 669                if (d->worktree_status == DIFF_STATUS_DELETED)
 670                        changes = -1;
 671        }
 672        return changes;
 673}
 674
 675static void wt_status_print_changed(struct wt_status *s)
 676{
 677        int i, dirty_submodules;
 678        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 679
 680        if (!worktree_changes)
 681                return;
 682
 683        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 684
 685        for (i = 0; i < s->change.nr; i++) {
 686                struct wt_status_change_data *d;
 687                struct string_list_item *it;
 688                it = &(s->change.items[i]);
 689                d = it->util;
 690                if (!d->worktree_status ||
 691                    d->worktree_status == DIFF_STATUS_UNMERGED)
 692                        continue;
 693                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 694        }
 695        wt_status_print_trailer(s);
 696}
 697
 698static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 699{
 700        struct child_process sm_summary;
 701        char summary_limit[64];
 702        char index[PATH_MAX];
 703        const char *env[] = { NULL, NULL };
 704        struct argv_array argv = ARGV_ARRAY_INIT;
 705        struct strbuf cmd_stdout = STRBUF_INIT;
 706        struct strbuf summary = STRBUF_INIT;
 707        char *summary_content;
 708        size_t len;
 709
 710        sprintf(summary_limit, "%d", s->submodule_summary);
 711        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 712
 713        env[0] = index;
 714        argv_array_push(&argv, "submodule");
 715        argv_array_push(&argv, "summary");
 716        argv_array_push(&argv, uncommitted ? "--files" : "--cached");
 717        argv_array_push(&argv, "--for-status");
 718        argv_array_push(&argv, "--summary-limit");
 719        argv_array_push(&argv, summary_limit);
 720        if (!uncommitted)
 721                argv_array_push(&argv, s->amend ? "HEAD^" : "HEAD");
 722
 723        memset(&sm_summary, 0, sizeof(sm_summary));
 724        sm_summary.argv = argv.argv;
 725        sm_summary.env = env;
 726        sm_summary.git_cmd = 1;
 727        sm_summary.no_stdin = 1;
 728        fflush(s->fp);
 729        sm_summary.out = -1;
 730
 731        run_command(&sm_summary);
 732        argv_array_clear(&argv);
 733
 734        len = strbuf_read(&cmd_stdout, sm_summary.out, 1024);
 735
 736        /* prepend header, only if there's an actual output */
 737        if (len) {
 738                if (uncommitted)
 739                        strbuf_addstr(&summary, _("Submodules changed but not updated:"));
 740                else
 741                        strbuf_addstr(&summary, _("Submodule changes to be committed:"));
 742                strbuf_addstr(&summary, "\n\n");
 743        }
 744        strbuf_addbuf(&summary, &cmd_stdout);
 745        strbuf_release(&cmd_stdout);
 746
 747        if (s->display_comment_prefix) {
 748                summary_content = strbuf_detach(&summary, &len);
 749                strbuf_add_commented_lines(&summary, summary_content, len);
 750                free(summary_content);
 751        }
 752
 753        fputs(summary.buf, s->fp);
 754        strbuf_release(&summary);
 755}
 756
 757static void wt_status_print_other(struct wt_status *s,
 758                                  struct string_list *l,
 759                                  const char *what,
 760                                  const char *how)
 761{
 762        int i;
 763        struct strbuf buf = STRBUF_INIT;
 764        static struct string_list output = STRING_LIST_INIT_DUP;
 765        struct column_options copts;
 766
 767        if (!l->nr)
 768                return;
 769
 770        wt_status_print_other_header(s, what, how);
 771
 772        for (i = 0; i < l->nr; i++) {
 773                struct string_list_item *it;
 774                const char *path;
 775                it = &(l->items[i]);
 776                path = quote_path(it->string, s->prefix, &buf);
 777                if (column_active(s->colopts)) {
 778                        string_list_append(&output, path);
 779                        continue;
 780                }
 781                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 782                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 783                                   "%s\n", path);
 784        }
 785
 786        strbuf_release(&buf);
 787        if (!column_active(s->colopts))
 788                goto conclude;
 789
 790        strbuf_addf(&buf, "%s%s\t%s",
 791                    color(WT_STATUS_HEADER, s),
 792                    s->display_comment_prefix ? "#" : "",
 793                    color(WT_STATUS_UNTRACKED, s));
 794        memset(&copts, 0, sizeof(copts));
 795        copts.padding = 1;
 796        copts.indent = buf.buf;
 797        if (want_color(s->use_color))
 798                copts.nl = GIT_COLOR_RESET "\n";
 799        print_columns(&output, s->colopts, &copts);
 800        string_list_clear(&output, 0);
 801        strbuf_release(&buf);
 802conclude:
 803        status_printf_ln(s, GIT_COLOR_NORMAL, "");
 804}
 805
 806void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
 807{
 808        const char *p;
 809        struct strbuf pattern = STRBUF_INIT;
 810
 811        strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line);
 812        p = strstr(buf->buf, pattern.buf);
 813        if (p && (p == buf->buf || p[-1] == '\n'))
 814                strbuf_setlen(buf, p - buf->buf);
 815        strbuf_release(&pattern);
 816}
 817
 818static void wt_status_print_verbose(struct wt_status *s)
 819{
 820        struct rev_info rev;
 821        struct setup_revision_opt opt;
 822
 823        init_revisions(&rev, NULL);
 824        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 825
 826        memset(&opt, 0, sizeof(opt));
 827        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 828        setup_revisions(0, NULL, &rev, &opt);
 829
 830        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 831        rev.diffopt.detect_rename = 1;
 832        rev.diffopt.file = s->fp;
 833        rev.diffopt.close_file = 0;
 834        /*
 835         * If we're not going to stdout, then we definitely don't
 836         * want color, since we are going to the commit message
 837         * file (and even the "auto" setting won't work, since it
 838         * will have checked isatty on stdout). But we then do want
 839         * to insert the scissor line here to reliably remove the
 840         * diff before committing.
 841         */
 842        if (s->fp != stdout) {
 843                const char *explanation = _("Do not touch the line above.\nEverything below will be removed.");
 844                struct strbuf buf = STRBUF_INIT;
 845
 846                rev.diffopt.use_color = 0;
 847                fprintf(s->fp, "%c %s", comment_line_char, cut_line);
 848                strbuf_add_commented_lines(&buf, explanation, strlen(explanation));
 849                fputs(buf.buf, s->fp);
 850                strbuf_release(&buf);
 851        }
 852        run_diff_index(&rev, 1);
 853}
 854
 855static void wt_status_print_tracking(struct wt_status *s)
 856{
 857        struct strbuf sb = STRBUF_INIT;
 858        const char *cp, *ep;
 859        struct branch *branch;
 860        char comment_line_string[3];
 861        int i;
 862
 863        assert(s->branch && !s->is_initial);
 864        if (!starts_with(s->branch, "refs/heads/"))
 865                return;
 866        branch = branch_get(s->branch + 11);
 867        if (!format_tracking_info(branch, &sb))
 868                return;
 869
 870        i = 0;
 871        if (s->display_comment_prefix) {
 872                comment_line_string[i++] = comment_line_char;
 873                comment_line_string[i++] = ' ';
 874        }
 875        comment_line_string[i] = '\0';
 876
 877        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 878                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 879                                 "%s%.*s", comment_line_string,
 880                                 (int)(ep - cp), cp);
 881        if (s->display_comment_prefix)
 882                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 883                                 comment_line_char);
 884        else
 885                fprintf_ln(s->fp, "");
 886}
 887
 888static int has_unmerged(struct wt_status *s)
 889{
 890        int i;
 891
 892        for (i = 0; i < s->change.nr; i++) {
 893                struct wt_status_change_data *d;
 894                d = s->change.items[i].util;
 895                if (d->stagemask)
 896                        return 1;
 897        }
 898        return 0;
 899}
 900
 901static void show_merge_in_progress(struct wt_status *s,
 902                                struct wt_status_state *state,
 903                                const char *color)
 904{
 905        if (has_unmerged(s)) {
 906                status_printf_ln(s, color, _("You have unmerged paths."));
 907                if (s->hints)
 908                        status_printf_ln(s, color,
 909                                _("  (fix conflicts and run \"git commit\")"));
 910        } else {
 911                status_printf_ln(s, color,
 912                        _("All conflicts fixed but you are still merging."));
 913                if (s->hints)
 914                        status_printf_ln(s, color,
 915                                _("  (use \"git commit\" to conclude merge)"));
 916        }
 917        wt_status_print_trailer(s);
 918}
 919
 920static void show_am_in_progress(struct wt_status *s,
 921                                struct wt_status_state *state,
 922                                const char *color)
 923{
 924        status_printf_ln(s, color,
 925                _("You are in the middle of an am session."));
 926        if (state->am_empty_patch)
 927                status_printf_ln(s, color,
 928                        _("The current patch is empty."));
 929        if (s->hints) {
 930                if (!state->am_empty_patch)
 931                        status_printf_ln(s, color,
 932                                _("  (fix conflicts and then run \"git am --continue\")"));
 933                status_printf_ln(s, color,
 934                        _("  (use \"git am --skip\" to skip this patch)"));
 935                status_printf_ln(s, color,
 936                        _("  (use \"git am --abort\" to restore the original branch)"));
 937        }
 938        wt_status_print_trailer(s);
 939}
 940
 941static char *read_line_from_git_path(const char *filename)
 942{
 943        struct strbuf buf = STRBUF_INIT;
 944        FILE *fp = fopen(git_path("%s", filename), "r");
 945        if (!fp) {
 946                strbuf_release(&buf);
 947                return NULL;
 948        }
 949        strbuf_getline(&buf, fp, '\n');
 950        if (!fclose(fp)) {
 951                return strbuf_detach(&buf, NULL);
 952        } else {
 953                strbuf_release(&buf);
 954                return NULL;
 955        }
 956}
 957
 958static int split_commit_in_progress(struct wt_status *s)
 959{
 960        int split_in_progress = 0;
 961        char *head = read_line_from_git_path("HEAD");
 962        char *orig_head = read_line_from_git_path("ORIG_HEAD");
 963        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 964        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 965
 966        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 967            !s->branch || strcmp(s->branch, "HEAD"))
 968                return split_in_progress;
 969
 970        if (!strcmp(rebase_amend, rebase_orig_head)) {
 971                if (strcmp(head, rebase_amend))
 972                        split_in_progress = 1;
 973        } else if (strcmp(orig_head, rebase_orig_head)) {
 974                split_in_progress = 1;
 975        }
 976
 977        if (!s->amend && !s->nowarn && !s->workdir_dirty)
 978                split_in_progress = 0;
 979
 980        free(head);
 981        free(orig_head);
 982        free(rebase_amend);
 983        free(rebase_orig_head);
 984        return split_in_progress;
 985}
 986
 987static void show_rebase_in_progress(struct wt_status *s,
 988                                struct wt_status_state *state,
 989                                const char *color)
 990{
 991        struct stat st;
 992
 993        if (has_unmerged(s)) {
 994                if (state->branch)
 995                        status_printf_ln(s, color,
 996                                         _("You are currently rebasing branch '%s' on '%s'."),
 997                                         state->branch,
 998                                         state->onto);
 999                else
1000                        status_printf_ln(s, color,
1001                                         _("You are currently rebasing."));
1002                if (s->hints) {
1003                        status_printf_ln(s, color,
1004                                _("  (fix conflicts and then run \"git rebase --continue\")"));
1005                        status_printf_ln(s, color,
1006                                _("  (use \"git rebase --skip\" to skip this patch)"));
1007                        status_printf_ln(s, color,
1008                                _("  (use \"git rebase --abort\" to check out the original branch)"));
1009                }
1010        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
1011                if (state->branch)
1012                        status_printf_ln(s, color,
1013                                         _("You are currently rebasing branch '%s' on '%s'."),
1014                                         state->branch,
1015                                         state->onto);
1016                else
1017                        status_printf_ln(s, color,
1018                                         _("You are currently rebasing."));
1019                if (s->hints)
1020                        status_printf_ln(s, color,
1021                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
1022        } else if (split_commit_in_progress(s)) {
1023                if (state->branch)
1024                        status_printf_ln(s, color,
1025                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1026                                         state->branch,
1027                                         state->onto);
1028                else
1029                        status_printf_ln(s, color,
1030                                         _("You are currently splitting a commit during a rebase."));
1031                if (s->hints)
1032                        status_printf_ln(s, color,
1033                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
1034        } else {
1035                if (state->branch)
1036                        status_printf_ln(s, color,
1037                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1038                                         state->branch,
1039                                         state->onto);
1040                else
1041                        status_printf_ln(s, color,
1042                                         _("You are currently editing a commit during a rebase."));
1043                if (s->hints && !s->amend) {
1044                        status_printf_ln(s, color,
1045                                _("  (use \"git commit --amend\" to amend the current commit)"));
1046                        status_printf_ln(s, color,
1047                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1048                }
1049        }
1050        wt_status_print_trailer(s);
1051}
1052
1053static void show_cherry_pick_in_progress(struct wt_status *s,
1054                                        struct wt_status_state *state,
1055                                        const char *color)
1056{
1057        status_printf_ln(s, color, _("You are currently cherry-picking commit %s."),
1058                        find_unique_abbrev(state->cherry_pick_head_sha1, DEFAULT_ABBREV));
1059        if (s->hints) {
1060                if (has_unmerged(s))
1061                        status_printf_ln(s, color,
1062                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
1063                else
1064                        status_printf_ln(s, color,
1065                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1066                status_printf_ln(s, color,
1067                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1068        }
1069        wt_status_print_trailer(s);
1070}
1071
1072static void show_revert_in_progress(struct wt_status *s,
1073                                        struct wt_status_state *state,
1074                                        const char *color)
1075{
1076        status_printf_ln(s, color, _("You are currently reverting commit %s."),
1077                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
1078        if (s->hints) {
1079                if (has_unmerged(s))
1080                        status_printf_ln(s, color,
1081                                _("  (fix conflicts and run \"git revert --continue\")"));
1082                else
1083                        status_printf_ln(s, color,
1084                                _("  (all conflicts fixed: run \"git revert --continue\")"));
1085                status_printf_ln(s, color,
1086                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
1087        }
1088        wt_status_print_trailer(s);
1089}
1090
1091static void show_bisect_in_progress(struct wt_status *s,
1092                                struct wt_status_state *state,
1093                                const char *color)
1094{
1095        if (state->branch)
1096                status_printf_ln(s, color,
1097                                 _("You are currently bisecting, started from branch '%s'."),
1098                                 state->branch);
1099        else
1100                status_printf_ln(s, color,
1101                                 _("You are currently bisecting."));
1102        if (s->hints)
1103                status_printf_ln(s, color,
1104                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1105        wt_status_print_trailer(s);
1106}
1107
1108/*
1109 * Extract branch information from rebase/bisect
1110 */
1111static char *read_and_strip_branch(const char *path)
1112{
1113        struct strbuf sb = STRBUF_INIT;
1114        unsigned char sha1[20];
1115
1116        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1117                goto got_nothing;
1118
1119        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1120                strbuf_setlen(&sb, sb.len - 1);
1121        if (!sb.len)
1122                goto got_nothing;
1123        if (starts_with(sb.buf, "refs/heads/"))
1124                strbuf_remove(&sb,0, strlen("refs/heads/"));
1125        else if (starts_with(sb.buf, "refs/"))
1126                ;
1127        else if (!get_sha1_hex(sb.buf, sha1)) {
1128                const char *abbrev;
1129                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1130                strbuf_reset(&sb);
1131                strbuf_addstr(&sb, abbrev);
1132        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1133                goto got_nothing;
1134        else                    /* bisect */
1135                ;
1136        return strbuf_detach(&sb, NULL);
1137
1138got_nothing:
1139        strbuf_release(&sb);
1140        return NULL;
1141}
1142
1143struct grab_1st_switch_cbdata {
1144        struct strbuf buf;
1145        unsigned char nsha1[20];
1146};
1147
1148static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1149                           const char *email, unsigned long timestamp, int tz,
1150                           const char *message, void *cb_data)
1151{
1152        struct grab_1st_switch_cbdata *cb = cb_data;
1153        const char *target = NULL, *end;
1154
1155        if (!starts_with(message, "checkout: moving from "))
1156                return 0;
1157        message += strlen("checkout: moving from ");
1158        target = strstr(message, " to ");
1159        if (!target)
1160                return 0;
1161        target += strlen(" to ");
1162        strbuf_reset(&cb->buf);
1163        hashcpy(cb->nsha1, nsha1);
1164        for (end = target; *end && *end != '\n'; end++)
1165                ;
1166        strbuf_add(&cb->buf, target, end - target);
1167        return 1;
1168}
1169
1170static void wt_status_get_detached_from(struct wt_status_state *state)
1171{
1172        struct grab_1st_switch_cbdata cb;
1173        struct commit *commit;
1174        unsigned char sha1[20];
1175        char *ref = NULL;
1176
1177        strbuf_init(&cb.buf, 0);
1178        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1179                strbuf_release(&cb.buf);
1180                return;
1181        }
1182
1183        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1184            /* sha1 is a commit? match without further lookup */
1185            (!hashcmp(cb.nsha1, sha1) ||
1186             /* perhaps sha1 is a tag, try to dereference to a commit */
1187             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1188              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1189                int ofs;
1190                if (starts_with(ref, "refs/tags/"))
1191                        ofs = strlen("refs/tags/");
1192                else if (starts_with(ref, "refs/remotes/"))
1193                        ofs = strlen("refs/remotes/");
1194                else
1195                        ofs = 0;
1196                state->detached_from = xstrdup(ref + ofs);
1197        } else
1198                state->detached_from =
1199                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1200        hashcpy(state->detached_sha1, cb.nsha1);
1201
1202        free(ref);
1203        strbuf_release(&cb.buf);
1204}
1205
1206void wt_status_get_state(struct wt_status_state *state,
1207                         int get_detached_from)
1208{
1209        struct stat st;
1210        unsigned char sha1[20];
1211
1212        if (!stat(git_path("MERGE_HEAD"), &st)) {
1213                state->merge_in_progress = 1;
1214        } else if (!stat(git_path("rebase-apply"), &st)) {
1215                if (!stat(git_path("rebase-apply/applying"), &st)) {
1216                        state->am_in_progress = 1;
1217                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1218                                state->am_empty_patch = 1;
1219                } else {
1220                        state->rebase_in_progress = 1;
1221                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1222                        state->onto = read_and_strip_branch("rebase-apply/onto");
1223                }
1224        } else if (!stat(git_path("rebase-merge"), &st)) {
1225                if (!stat(git_path("rebase-merge/interactive"), &st))
1226                        state->rebase_interactive_in_progress = 1;
1227                else
1228                        state->rebase_in_progress = 1;
1229                state->branch = read_and_strip_branch("rebase-merge/head-name");
1230                state->onto = read_and_strip_branch("rebase-merge/onto");
1231        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st) &&
1232                        !get_sha1("CHERRY_PICK_HEAD", sha1)) {
1233                state->cherry_pick_in_progress = 1;
1234                hashcpy(state->cherry_pick_head_sha1, sha1);
1235        }
1236        if (!stat(git_path("BISECT_LOG"), &st)) {
1237                state->bisect_in_progress = 1;
1238                state->branch = read_and_strip_branch("BISECT_START");
1239        }
1240        if (!stat(git_path("REVERT_HEAD"), &st) &&
1241            !get_sha1("REVERT_HEAD", sha1)) {
1242                state->revert_in_progress = 1;
1243                hashcpy(state->revert_head_sha1, sha1);
1244        }
1245
1246        if (get_detached_from)
1247                wt_status_get_detached_from(state);
1248}
1249
1250static void wt_status_print_state(struct wt_status *s,
1251                                  struct wt_status_state *state)
1252{
1253        const char *state_color = color(WT_STATUS_HEADER, s);
1254        if (state->merge_in_progress)
1255                show_merge_in_progress(s, state, state_color);
1256        else if (state->am_in_progress)
1257                show_am_in_progress(s, state, state_color);
1258        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1259                show_rebase_in_progress(s, state, state_color);
1260        else if (state->cherry_pick_in_progress)
1261                show_cherry_pick_in_progress(s, state, state_color);
1262        else if (state->revert_in_progress)
1263                show_revert_in_progress(s, state, state_color);
1264        if (state->bisect_in_progress)
1265                show_bisect_in_progress(s, state, state_color);
1266}
1267
1268void wt_status_print(struct wt_status *s)
1269{
1270        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1271        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1272        struct wt_status_state state;
1273
1274        memset(&state, 0, sizeof(state));
1275        wt_status_get_state(&state,
1276                            s->branch && !strcmp(s->branch, "HEAD"));
1277
1278        if (s->branch) {
1279                const char *on_what = _("On branch ");
1280                const char *branch_name = s->branch;
1281                if (starts_with(branch_name, "refs/heads/"))
1282                        branch_name += 11;
1283                else if (!strcmp(branch_name, "HEAD")) {
1284                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1285                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1286                                on_what = _("rebase in progress; onto ");
1287                                branch_name = state.onto;
1288                        } else if (state.detached_from) {
1289                                unsigned char sha1[20];
1290                                branch_name = state.detached_from;
1291                                if (!get_sha1("HEAD", sha1) &&
1292                                    !hashcmp(sha1, state.detached_sha1))
1293                                        on_what = _("HEAD detached at ");
1294                                else
1295                                        on_what = _("HEAD detached from ");
1296                        } else {
1297                                branch_name = "";
1298                                on_what = _("Not currently on any branch.");
1299                        }
1300                }
1301                status_printf(s, color(WT_STATUS_HEADER, s), "");
1302                status_printf_more(s, branch_status_color, "%s", on_what);
1303                status_printf_more(s, branch_color, "%s\n", branch_name);
1304                if (!s->is_initial)
1305                        wt_status_print_tracking(s);
1306        }
1307
1308        wt_status_print_state(s, &state);
1309        free(state.branch);
1310        free(state.onto);
1311        free(state.detached_from);
1312
1313        if (s->is_initial) {
1314                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1315                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1316                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1317        }
1318
1319        wt_status_print_updated(s);
1320        wt_status_print_unmerged(s);
1321        wt_status_print_changed(s);
1322        if (s->submodule_summary &&
1323            (!s->ignore_submodule_arg ||
1324             strcmp(s->ignore_submodule_arg, "all"))) {
1325                wt_status_print_submodule_summary(s, 0);  /* staged */
1326                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1327        }
1328        if (s->show_untracked_files) {
1329                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1330                if (s->show_ignored_files)
1331                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1332                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1333                        status_printf_ln(s, GIT_COLOR_NORMAL, "");
1334                        status_printf_ln(s, GIT_COLOR_NORMAL,
1335                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1336                                           "may speed it up, but you have to be careful not to forget to add\n"
1337                                           "new files yourself (see 'git help status')."),
1338                                         s->untracked_in_ms / 1000.0);
1339                }
1340        } else if (s->commitable)
1341                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1342                        s->hints
1343                        ? _(" (use -u option to show untracked files)") : "");
1344
1345        if (s->verbose)
1346                wt_status_print_verbose(s);
1347        if (!s->commitable) {
1348                if (s->amend)
1349                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1350                else if (s->nowarn)
1351                        ; /* nothing */
1352                else if (s->workdir_dirty) {
1353                        if (s->hints)
1354                                printf(_("no changes added to commit "
1355                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1356                        else
1357                                printf(_("no changes added to commit\n"));
1358                } else if (s->untracked.nr) {
1359                        if (s->hints)
1360                                printf(_("nothing added to commit but untracked files "
1361                                         "present (use \"git add\" to track)\n"));
1362                        else
1363                                printf(_("nothing added to commit but untracked files present\n"));
1364                } else if (s->is_initial) {
1365                        if (s->hints)
1366                                printf(_("nothing to commit (create/copy files "
1367                                         "and use \"git add\" to track)\n"));
1368                        else
1369                                printf(_("nothing to commit\n"));
1370                } else if (!s->show_untracked_files) {
1371                        if (s->hints)
1372                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1373                        else
1374                                printf(_("nothing to commit\n"));
1375                } else
1376                        printf(_("nothing to commit, working directory clean\n"));
1377        }
1378}
1379
1380static void wt_shortstatus_unmerged(struct string_list_item *it,
1381                           struct wt_status *s)
1382{
1383        struct wt_status_change_data *d = it->util;
1384        const char *how = "??";
1385
1386        switch (d->stagemask) {
1387        case 1: how = "DD"; break; /* both deleted */
1388        case 2: how = "AU"; break; /* added by us */
1389        case 3: how = "UD"; break; /* deleted by them */
1390        case 4: how = "UA"; break; /* added by them */
1391        case 5: how = "DU"; break; /* deleted by us */
1392        case 6: how = "AA"; break; /* both added */
1393        case 7: how = "UU"; break; /* both modified */
1394        }
1395        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1396        if (s->null_termination) {
1397                fprintf(stdout, " %s%c", it->string, 0);
1398        } else {
1399                struct strbuf onebuf = STRBUF_INIT;
1400                const char *one;
1401                one = quote_path(it->string, s->prefix, &onebuf);
1402                printf(" %s\n", one);
1403                strbuf_release(&onebuf);
1404        }
1405}
1406
1407static void wt_shortstatus_status(struct string_list_item *it,
1408                         struct wt_status *s)
1409{
1410        struct wt_status_change_data *d = it->util;
1411
1412        if (d->index_status)
1413                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1414        else
1415                putchar(' ');
1416        if (d->worktree_status)
1417                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1418        else
1419                putchar(' ');
1420        putchar(' ');
1421        if (s->null_termination) {
1422                fprintf(stdout, "%s%c", it->string, 0);
1423                if (d->head_path)
1424                        fprintf(stdout, "%s%c", d->head_path, 0);
1425        } else {
1426                struct strbuf onebuf = STRBUF_INIT;
1427                const char *one;
1428                if (d->head_path) {
1429                        one = quote_path(d->head_path, s->prefix, &onebuf);
1430                        if (*one != '"' && strchr(one, ' ') != NULL) {
1431                                putchar('"');
1432                                strbuf_addch(&onebuf, '"');
1433                                one = onebuf.buf;
1434                        }
1435                        printf("%s -> ", one);
1436                        strbuf_release(&onebuf);
1437                }
1438                one = quote_path(it->string, s->prefix, &onebuf);
1439                if (*one != '"' && strchr(one, ' ') != NULL) {
1440                        putchar('"');
1441                        strbuf_addch(&onebuf, '"');
1442                        one = onebuf.buf;
1443                }
1444                printf("%s\n", one);
1445                strbuf_release(&onebuf);
1446        }
1447}
1448
1449static void wt_shortstatus_other(struct string_list_item *it,
1450                                 struct wt_status *s, const char *sign)
1451{
1452        if (s->null_termination) {
1453                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1454        } else {
1455                struct strbuf onebuf = STRBUF_INIT;
1456                const char *one;
1457                one = quote_path(it->string, s->prefix, &onebuf);
1458                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1459                printf(" %s\n", one);
1460                strbuf_release(&onebuf);
1461        }
1462}
1463
1464static void wt_shortstatus_print_tracking(struct wt_status *s)
1465{
1466        struct branch *branch;
1467        const char *header_color = color(WT_STATUS_HEADER, s);
1468        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1469        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1470
1471        const char *base;
1472        const char *branch_name;
1473        int num_ours, num_theirs;
1474        int upstream_is_gone = 0;
1475
1476        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1477
1478        if (!s->branch)
1479                return;
1480        branch_name = s->branch;
1481
1482        if (starts_with(branch_name, "refs/heads/"))
1483                branch_name += 11;
1484        else if (!strcmp(branch_name, "HEAD")) {
1485                branch_name = _("HEAD (no branch)");
1486                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1487        }
1488
1489        branch = branch_get(s->branch + 11);
1490        if (s->is_initial)
1491                color_fprintf(s->fp, header_color, _("Initial commit on "));
1492
1493        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1494
1495        switch (stat_tracking_info(branch, &num_ours, &num_theirs)) {
1496        case 0:
1497                /* no base */
1498                fputc(s->null_termination ? '\0' : '\n', s->fp);
1499                return;
1500        case -1:
1501                /* with "gone" base */
1502                upstream_is_gone = 1;
1503                break;
1504        default:
1505                /* with base */
1506                break;
1507        }
1508
1509        base = branch->merge[0]->dst;
1510        base = shorten_unambiguous_ref(base, 0);
1511        color_fprintf(s->fp, header_color, "...");
1512        color_fprintf(s->fp, branch_color_remote, "%s", base);
1513
1514        if (!upstream_is_gone && !num_ours && !num_theirs) {
1515                fputc(s->null_termination ? '\0' : '\n', s->fp);
1516                return;
1517        }
1518
1519        color_fprintf(s->fp, header_color, " [");
1520        if (upstream_is_gone) {
1521                color_fprintf(s->fp, header_color, _("gone"));
1522        } else if (!num_ours) {
1523                color_fprintf(s->fp, header_color, _("behind "));
1524                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1525        } else if (!num_theirs) {
1526                color_fprintf(s->fp, header_color, _("ahead "));
1527                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1528        } else {
1529                color_fprintf(s->fp, header_color, _("ahead "));
1530                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1531                color_fprintf(s->fp, header_color, _(", behind "));
1532                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1533        }
1534
1535        color_fprintf(s->fp, header_color, "]");
1536        fputc(s->null_termination ? '\0' : '\n', s->fp);
1537}
1538
1539void wt_shortstatus_print(struct wt_status *s)
1540{
1541        int i;
1542
1543        if (s->show_branch)
1544                wt_shortstatus_print_tracking(s);
1545
1546        for (i = 0; i < s->change.nr; i++) {
1547                struct wt_status_change_data *d;
1548                struct string_list_item *it;
1549
1550                it = &(s->change.items[i]);
1551                d = it->util;
1552                if (d->stagemask)
1553                        wt_shortstatus_unmerged(it, s);
1554                else
1555                        wt_shortstatus_status(it, s);
1556        }
1557        for (i = 0; i < s->untracked.nr; i++) {
1558                struct string_list_item *it;
1559
1560                it = &(s->untracked.items[i]);
1561                wt_shortstatus_other(it, s, "??");
1562        }
1563        for (i = 0; i < s->ignored.nr; i++) {
1564                struct string_list_item *it;
1565
1566                it = &(s->ignored.items[i]);
1567                wt_shortstatus_other(it, s, "!!");
1568        }
1569}
1570
1571void wt_porcelain_print(struct wt_status *s)
1572{
1573        s->use_color = 0;
1574        s->relative_paths = 0;
1575        s->prefix = NULL;
1576        wt_shortstatus_print(s);
1577}