wt-status.con commit Merge branch 'nd/git-dir-pointing-at-gitfile' into maint (f8aeacf)
   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 "remote.h"
  12#include "refs.h"
  13#include "submodule.h"
  14#include "column.h"
  15#include "strbuf.h"
  16
  17static char default_wt_status_colors[][COLOR_MAXLEN] = {
  18        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  19        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  20        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  21        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  22        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  23        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  24        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  25        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  26        GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
  27};
  28
  29static const char *color(int slot, struct wt_status *s)
  30{
  31        const char *c = "";
  32        if (want_color(s->use_color))
  33                c = s->color_palette[slot];
  34        if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
  35                c = s->color_palette[WT_STATUS_HEADER];
  36        return c;
  37}
  38
  39static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
  40                const char *fmt, va_list ap, const char *trail)
  41{
  42        struct strbuf sb = STRBUF_INIT;
  43        struct strbuf linebuf = STRBUF_INIT;
  44        const char *line, *eol;
  45
  46        strbuf_vaddf(&sb, fmt, ap);
  47        if (!sb.len) {
  48                strbuf_addch(&sb, comment_line_char);
  49                if (!trail)
  50                        strbuf_addch(&sb, ' ');
  51                color_print_strbuf(s->fp, color, &sb);
  52                if (trail)
  53                        fprintf(s->fp, "%s", trail);
  54                strbuf_release(&sb);
  55                return;
  56        }
  57        for (line = sb.buf; *line; line = eol + 1) {
  58                eol = strchr(line, '\n');
  59
  60                strbuf_reset(&linebuf);
  61                if (at_bol) {
  62                        strbuf_addch(&linebuf, comment_line_char);
  63                        if (*line != '\n' && *line != '\t')
  64                                strbuf_addch(&linebuf, ' ');
  65                }
  66                if (eol)
  67                        strbuf_add(&linebuf, line, eol - line);
  68                else
  69                        strbuf_addstr(&linebuf, line);
  70                color_print_strbuf(s->fp, color, &linebuf);
  71                if (eol)
  72                        fprintf(s->fp, "\n");
  73                else
  74                        break;
  75                at_bol = 1;
  76        }
  77        if (trail)
  78                fprintf(s->fp, "%s", trail);
  79        strbuf_release(&linebuf);
  80        strbuf_release(&sb);
  81}
  82
  83void status_printf_ln(struct wt_status *s, const char *color,
  84                        const char *fmt, ...)
  85{
  86        va_list ap;
  87
  88        va_start(ap, fmt);
  89        status_vprintf(s, 1, color, fmt, ap, "\n");
  90        va_end(ap);
  91}
  92
  93void status_printf(struct wt_status *s, const char *color,
  94                        const char *fmt, ...)
  95{
  96        va_list ap;
  97
  98        va_start(ap, fmt);
  99        status_vprintf(s, 1, color, fmt, ap, NULL);
 100        va_end(ap);
 101}
 102
 103static void status_printf_more(struct wt_status *s, const char *color,
 104                               const char *fmt, ...)
 105{
 106        va_list ap;
 107
 108        va_start(ap, fmt);
 109        status_vprintf(s, 0, color, fmt, ap, NULL);
 110        va_end(ap);
 111}
 112
 113void wt_status_prepare(struct wt_status *s)
 114{
 115        unsigned char sha1[20];
 116
 117        memset(s, 0, sizeof(*s));
 118        memcpy(s->color_palette, default_wt_status_colors,
 119               sizeof(default_wt_status_colors));
 120        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
 121        s->use_color = -1;
 122        s->relative_paths = 1;
 123        s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
 124        s->reference = "HEAD";
 125        s->fp = stdout;
 126        s->index_file = get_index_file();
 127        s->change.strdup_strings = 1;
 128        s->untracked.strdup_strings = 1;
 129        s->ignored.strdup_strings = 1;
 130        s->show_branch = -1;  /* unspecified */
 131}
 132
 133static void wt_status_print_unmerged_header(struct wt_status *s)
 134{
 135        int i;
 136        int del_mod_conflict = 0;
 137        int both_deleted = 0;
 138        int not_deleted = 0;
 139        const char *c = color(WT_STATUS_HEADER, s);
 140
 141        status_printf_ln(s, c, _("Unmerged paths:"));
 142
 143        for (i = 0; i < s->change.nr; i++) {
 144                struct string_list_item *it = &(s->change.items[i]);
 145                struct wt_status_change_data *d = it->util;
 146
 147                switch (d->stagemask) {
 148                case 0:
 149                        break;
 150                case 1:
 151                        both_deleted = 1;
 152                        break;
 153                case 3:
 154                case 5:
 155                        del_mod_conflict = 1;
 156                        break;
 157                default:
 158                        not_deleted = 1;
 159                        break;
 160                }
 161        }
 162
 163        if (!advice_status_hints)
 164                return;
 165        if (s->whence != FROM_COMMIT)
 166                ;
 167        else if (!s->is_initial)
 168                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 169        else
 170                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 171
 172        if (!both_deleted) {
 173                if (!del_mod_conflict)
 174                        status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
 175                else
 176                        status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 177        } else if (!del_mod_conflict && !not_deleted) {
 178                status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
 179        } else {
 180                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 181        }
 182        status_printf_ln(s, c, "");
 183}
 184
 185static void wt_status_print_cached_header(struct wt_status *s)
 186{
 187        const char *c = color(WT_STATUS_HEADER, s);
 188
 189        status_printf_ln(s, c, _("Changes to be committed:"));
 190        if (!advice_status_hints)
 191                return;
 192        if (s->whence != FROM_COMMIT)
 193                ; /* NEEDSWORK: use "git reset --unresolve"??? */
 194        else if (!s->is_initial)
 195                status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 196        else
 197                status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
 198        status_printf_ln(s, c, "");
 199}
 200
 201static void wt_status_print_dirty_header(struct wt_status *s,
 202                                         int has_deleted,
 203                                         int has_dirty_submodules)
 204{
 205        const char *c = color(WT_STATUS_HEADER, s);
 206
 207        status_printf_ln(s, c, _("Changes not staged for commit:"));
 208        if (!advice_status_hints)
 209                return;
 210        if (!has_deleted)
 211                status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
 212        else
 213                status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
 214        status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 215        if (has_dirty_submodules)
 216                status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
 217        status_printf_ln(s, c, "");
 218}
 219
 220static void wt_status_print_other_header(struct wt_status *s,
 221                                         const char *what,
 222                                         const char *how)
 223{
 224        const char *c = color(WT_STATUS_HEADER, s);
 225        status_printf_ln(s, c, "%s:", what);
 226        if (!advice_status_hints)
 227                return;
 228        status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
 229        status_printf_ln(s, c, "");
 230}
 231
 232static void wt_status_print_trailer(struct wt_status *s)
 233{
 234        status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
 235}
 236
 237#define quote_path quote_path_relative
 238
 239static void wt_status_print_unmerged_data(struct wt_status *s,
 240                                          struct string_list_item *it)
 241{
 242        const char *c = color(WT_STATUS_UNMERGED, s);
 243        struct wt_status_change_data *d = it->util;
 244        struct strbuf onebuf = STRBUF_INIT;
 245        const char *one, *how = _("bug");
 246
 247        one = quote_path(it->string, s->prefix, &onebuf);
 248        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 249        switch (d->stagemask) {
 250        case 1: how = _("both deleted:"); break;
 251        case 2: how = _("added by us:"); break;
 252        case 3: how = _("deleted by them:"); break;
 253        case 4: how = _("added by them:"); break;
 254        case 5: how = _("deleted by us:"); break;
 255        case 6: how = _("both added:"); break;
 256        case 7: how = _("both modified:"); break;
 257        }
 258        status_printf_more(s, c, "%-20s%s\n", how, one);
 259        strbuf_release(&onebuf);
 260}
 261
 262static void wt_status_print_change_data(struct wt_status *s,
 263                                        int change_type,
 264                                        struct string_list_item *it)
 265{
 266        struct wt_status_change_data *d = it->util;
 267        const char *c = color(change_type, s);
 268        int status;
 269        char *one_name;
 270        char *two_name;
 271        const char *one, *two;
 272        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 273        struct strbuf extra = STRBUF_INIT;
 274
 275        one_name = two_name = it->string;
 276        switch (change_type) {
 277        case WT_STATUS_UPDATED:
 278                status = d->index_status;
 279                if (d->head_path)
 280                        one_name = d->head_path;
 281                break;
 282        case WT_STATUS_CHANGED:
 283                if (d->new_submodule_commits || d->dirty_submodule) {
 284                        strbuf_addstr(&extra, " (");
 285                        if (d->new_submodule_commits)
 286                                strbuf_addf(&extra, _("new commits, "));
 287                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 288                                strbuf_addf(&extra, _("modified content, "));
 289                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 290                                strbuf_addf(&extra, _("untracked content, "));
 291                        strbuf_setlen(&extra, extra.len - 2);
 292                        strbuf_addch(&extra, ')');
 293                }
 294                status = d->worktree_status;
 295                break;
 296        default:
 297                die("BUG: unhandled change_type %d in wt_status_print_change_data",
 298                    change_type);
 299        }
 300
 301        one = quote_path(one_name, s->prefix, &onebuf);
 302        two = quote_path(two_name, s->prefix, &twobuf);
 303
 304        status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 305        switch (status) {
 306        case DIFF_STATUS_ADDED:
 307                status_printf_more(s, c, _("new file:   %s"), one);
 308                break;
 309        case DIFF_STATUS_COPIED:
 310                status_printf_more(s, c, _("copied:     %s -> %s"), one, two);
 311                break;
 312        case DIFF_STATUS_DELETED:
 313                status_printf_more(s, c, _("deleted:    %s"), one);
 314                break;
 315        case DIFF_STATUS_MODIFIED:
 316                status_printf_more(s, c, _("modified:   %s"), one);
 317                break;
 318        case DIFF_STATUS_RENAMED:
 319                status_printf_more(s, c, _("renamed:    %s -> %s"), one, two);
 320                break;
 321        case DIFF_STATUS_TYPE_CHANGED:
 322                status_printf_more(s, c, _("typechange: %s"), one);
 323                break;
 324        case DIFF_STATUS_UNKNOWN:
 325                status_printf_more(s, c, _("unknown:    %s"), one);
 326                break;
 327        case DIFF_STATUS_UNMERGED:
 328                status_printf_more(s, c, _("unmerged:   %s"), one);
 329                break;
 330        default:
 331                die(_("bug: unhandled diff status %c"), status);
 332        }
 333        if (extra.len) {
 334                status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 335                strbuf_release(&extra);
 336        }
 337        status_printf_more(s, GIT_COLOR_NORMAL, "\n");
 338        strbuf_release(&onebuf);
 339        strbuf_release(&twobuf);
 340}
 341
 342static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 343                                         struct diff_options *options,
 344                                         void *data)
 345{
 346        struct wt_status *s = data;
 347        int i;
 348
 349        if (!q->nr)
 350                return;
 351        s->workdir_dirty = 1;
 352        for (i = 0; i < q->nr; i++) {
 353                struct diff_filepair *p;
 354                struct string_list_item *it;
 355                struct wt_status_change_data *d;
 356
 357                p = q->queue[i];
 358                it = string_list_insert(&s->change, p->one->path);
 359                d = it->util;
 360                if (!d) {
 361                        d = xcalloc(1, sizeof(*d));
 362                        it->util = d;
 363                }
 364                if (!d->worktree_status)
 365                        d->worktree_status = p->status;
 366                d->dirty_submodule = p->two->dirty_submodule;
 367                if (S_ISGITLINK(p->two->mode))
 368                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 369        }
 370}
 371
 372static int unmerged_mask(const char *path)
 373{
 374        int pos, mask;
 375        const struct cache_entry *ce;
 376
 377        pos = cache_name_pos(path, strlen(path));
 378        if (0 <= pos)
 379                return 0;
 380
 381        mask = 0;
 382        pos = -pos-1;
 383        while (pos < active_nr) {
 384                ce = active_cache[pos++];
 385                if (strcmp(ce->name, path) || !ce_stage(ce))
 386                        break;
 387                mask |= (1 << (ce_stage(ce) - 1));
 388        }
 389        return mask;
 390}
 391
 392static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 393                                         struct diff_options *options,
 394                                         void *data)
 395{
 396        struct wt_status *s = data;
 397        int i;
 398
 399        for (i = 0; i < q->nr; i++) {
 400                struct diff_filepair *p;
 401                struct string_list_item *it;
 402                struct wt_status_change_data *d;
 403
 404                p = q->queue[i];
 405                it = string_list_insert(&s->change, p->two->path);
 406                d = it->util;
 407                if (!d) {
 408                        d = xcalloc(1, sizeof(*d));
 409                        it->util = d;
 410                }
 411                if (!d->index_status)
 412                        d->index_status = p->status;
 413                switch (p->status) {
 414                case DIFF_STATUS_COPIED:
 415                case DIFF_STATUS_RENAMED:
 416                        d->head_path = xstrdup(p->one->path);
 417                        break;
 418                case DIFF_STATUS_UNMERGED:
 419                        d->stagemask = unmerged_mask(p->two->path);
 420                        break;
 421                }
 422        }
 423}
 424
 425static void wt_status_collect_changes_worktree(struct wt_status *s)
 426{
 427        struct rev_info rev;
 428
 429        init_revisions(&rev, NULL);
 430        setup_revisions(0, NULL, &rev, NULL);
 431        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 432        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 433        if (!s->show_untracked_files)
 434                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 435        if (s->ignore_submodule_arg) {
 436                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 437                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 438        }
 439        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 440        rev.diffopt.format_callback_data = s;
 441        init_pathspec(&rev.prune_data, s->pathspec);
 442        run_diff_files(&rev, 0);
 443}
 444
 445static void wt_status_collect_changes_index(struct wt_status *s)
 446{
 447        struct rev_info rev;
 448        struct setup_revision_opt opt;
 449
 450        init_revisions(&rev, NULL);
 451        memset(&opt, 0, sizeof(opt));
 452        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 453        setup_revisions(0, NULL, &rev, &opt);
 454
 455        if (s->ignore_submodule_arg) {
 456                DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
 457                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 458        }
 459
 460        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 461        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 462        rev.diffopt.format_callback_data = s;
 463        rev.diffopt.detect_rename = 1;
 464        rev.diffopt.rename_limit = 200;
 465        rev.diffopt.break_opt = 0;
 466        init_pathspec(&rev.prune_data, s->pathspec);
 467        run_diff_index(&rev, 1);
 468}
 469
 470static void wt_status_collect_changes_initial(struct wt_status *s)
 471{
 472        struct pathspec pathspec;
 473        int i;
 474
 475        init_pathspec(&pathspec, s->pathspec);
 476        for (i = 0; i < active_nr; i++) {
 477                struct string_list_item *it;
 478                struct wt_status_change_data *d;
 479                const struct cache_entry *ce = active_cache[i];
 480
 481                if (!ce_path_match(ce, &pathspec))
 482                        continue;
 483                it = string_list_insert(&s->change, ce->name);
 484                d = it->util;
 485                if (!d) {
 486                        d = xcalloc(1, sizeof(*d));
 487                        it->util = d;
 488                }
 489                if (ce_stage(ce)) {
 490                        d->index_status = DIFF_STATUS_UNMERGED;
 491                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 492                }
 493                else
 494                        d->index_status = DIFF_STATUS_ADDED;
 495        }
 496        free_pathspec(&pathspec);
 497}
 498
 499static void wt_status_collect_untracked(struct wt_status *s)
 500{
 501        int i;
 502        struct dir_struct dir;
 503        struct timeval t_begin;
 504
 505        if (!s->show_untracked_files)
 506                return;
 507
 508        if (advice_status_u_option)
 509                gettimeofday(&t_begin, NULL);
 510
 511        memset(&dir, 0, sizeof(dir));
 512        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 513                dir.flags |=
 514                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 515        if (s->show_ignored_files)
 516                dir.flags |= DIR_SHOW_IGNORED_TOO;
 517        setup_standard_excludes(&dir);
 518
 519        fill_directory(&dir, s->pathspec);
 520
 521        for (i = 0; i < dir.nr; i++) {
 522                struct dir_entry *ent = dir.entries[i];
 523                if (cache_name_is_other(ent->name, ent->len) &&
 524                    match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 525                        string_list_insert(&s->untracked, ent->name);
 526                free(ent);
 527        }
 528
 529        for (i = 0; i < dir.ignored_nr; i++) {
 530                struct dir_entry *ent = dir.ignored[i];
 531                if (cache_name_is_other(ent->name, ent->len) &&
 532                    match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 533                        string_list_insert(&s->ignored, ent->name);
 534                free(ent);
 535        }
 536
 537        free(dir.entries);
 538        free(dir.ignored);
 539        clear_directory(&dir);
 540
 541        if (advice_status_u_option) {
 542                struct timeval t_end;
 543                gettimeofday(&t_end, NULL);
 544                s->untracked_in_ms =
 545                        (uint64_t)t_end.tv_sec * 1000 + t_end.tv_usec / 1000 -
 546                        ((uint64_t)t_begin.tv_sec * 1000 + t_begin.tv_usec / 1000);
 547        }
 548}
 549
 550void wt_status_collect(struct wt_status *s)
 551{
 552        wt_status_collect_changes_worktree(s);
 553
 554        if (s->is_initial)
 555                wt_status_collect_changes_initial(s);
 556        else
 557                wt_status_collect_changes_index(s);
 558        wt_status_collect_untracked(s);
 559}
 560
 561static void wt_status_print_unmerged(struct wt_status *s)
 562{
 563        int shown_header = 0;
 564        int i;
 565
 566        for (i = 0; i < s->change.nr; i++) {
 567                struct wt_status_change_data *d;
 568                struct string_list_item *it;
 569                it = &(s->change.items[i]);
 570                d = it->util;
 571                if (!d->stagemask)
 572                        continue;
 573                if (!shown_header) {
 574                        wt_status_print_unmerged_header(s);
 575                        shown_header = 1;
 576                }
 577                wt_status_print_unmerged_data(s, it);
 578        }
 579        if (shown_header)
 580                wt_status_print_trailer(s);
 581
 582}
 583
 584static void wt_status_print_updated(struct wt_status *s)
 585{
 586        int shown_header = 0;
 587        int i;
 588
 589        for (i = 0; i < s->change.nr; i++) {
 590                struct wt_status_change_data *d;
 591                struct string_list_item *it;
 592                it = &(s->change.items[i]);
 593                d = it->util;
 594                if (!d->index_status ||
 595                    d->index_status == DIFF_STATUS_UNMERGED)
 596                        continue;
 597                if (!shown_header) {
 598                        wt_status_print_cached_header(s);
 599                        s->commitable = 1;
 600                        shown_header = 1;
 601                }
 602                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 603        }
 604        if (shown_header)
 605                wt_status_print_trailer(s);
 606}
 607
 608/*
 609 * -1 : has delete
 610 *  0 : no change
 611 *  1 : some change but no delete
 612 */
 613static int wt_status_check_worktree_changes(struct wt_status *s,
 614                                             int *dirty_submodules)
 615{
 616        int i;
 617        int changes = 0;
 618
 619        *dirty_submodules = 0;
 620
 621        for (i = 0; i < s->change.nr; i++) {
 622                struct wt_status_change_data *d;
 623                d = s->change.items[i].util;
 624                if (!d->worktree_status ||
 625                    d->worktree_status == DIFF_STATUS_UNMERGED)
 626                        continue;
 627                if (!changes)
 628                        changes = 1;
 629                if (d->dirty_submodule)
 630                        *dirty_submodules = 1;
 631                if (d->worktree_status == DIFF_STATUS_DELETED)
 632                        changes = -1;
 633        }
 634        return changes;
 635}
 636
 637static void wt_status_print_changed(struct wt_status *s)
 638{
 639        int i, dirty_submodules;
 640        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 641
 642        if (!worktree_changes)
 643                return;
 644
 645        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 646
 647        for (i = 0; i < s->change.nr; i++) {
 648                struct wt_status_change_data *d;
 649                struct string_list_item *it;
 650                it = &(s->change.items[i]);
 651                d = it->util;
 652                if (!d->worktree_status ||
 653                    d->worktree_status == DIFF_STATUS_UNMERGED)
 654                        continue;
 655                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 656        }
 657        wt_status_print_trailer(s);
 658}
 659
 660static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 661{
 662        struct child_process sm_summary;
 663        char summary_limit[64];
 664        char index[PATH_MAX];
 665        const char *env[] = { NULL, NULL };
 666        const char *argv[8];
 667
 668        env[0] =        index;
 669        argv[0] =       "submodule";
 670        argv[1] =       "summary";
 671        argv[2] =       uncommitted ? "--files" : "--cached";
 672        argv[3] =       "--for-status";
 673        argv[4] =       "--summary-limit";
 674        argv[5] =       summary_limit;
 675        argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 676        argv[7] =       NULL;
 677
 678        sprintf(summary_limit, "%d", s->submodule_summary);
 679        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 680
 681        memset(&sm_summary, 0, sizeof(sm_summary));
 682        sm_summary.argv = argv;
 683        sm_summary.env = env;
 684        sm_summary.git_cmd = 1;
 685        sm_summary.no_stdin = 1;
 686        fflush(s->fp);
 687        sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 688        run_command(&sm_summary);
 689}
 690
 691static void wt_status_print_other(struct wt_status *s,
 692                                  struct string_list *l,
 693                                  const char *what,
 694                                  const char *how)
 695{
 696        int i;
 697        struct strbuf buf = STRBUF_INIT;
 698        static struct string_list output = STRING_LIST_INIT_DUP;
 699        struct column_options copts;
 700
 701        if (!l->nr)
 702                return;
 703
 704        wt_status_print_other_header(s, what, how);
 705
 706        for (i = 0; i < l->nr; i++) {
 707                struct string_list_item *it;
 708                const char *path;
 709                it = &(l->items[i]);
 710                path = quote_path(it->string, s->prefix, &buf);
 711                if (column_active(s->colopts)) {
 712                        string_list_append(&output, path);
 713                        continue;
 714                }
 715                status_printf(s, color(WT_STATUS_HEADER, s), "\t");
 716                status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
 717                                   "%s\n", path);
 718        }
 719
 720        strbuf_release(&buf);
 721        if (!column_active(s->colopts))
 722                return;
 723
 724        strbuf_addf(&buf, "%s#\t%s",
 725                    color(WT_STATUS_HEADER, s),
 726                    color(WT_STATUS_UNTRACKED, s));
 727        memset(&copts, 0, sizeof(copts));
 728        copts.padding = 1;
 729        copts.indent = buf.buf;
 730        if (want_color(s->use_color))
 731                copts.nl = GIT_COLOR_RESET "\n";
 732        print_columns(&output, s->colopts, &copts);
 733        string_list_clear(&output, 0);
 734        strbuf_release(&buf);
 735}
 736
 737static void wt_status_print_verbose(struct wt_status *s)
 738{
 739        struct rev_info rev;
 740        struct setup_revision_opt opt;
 741
 742        init_revisions(&rev, NULL);
 743        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 744
 745        memset(&opt, 0, sizeof(opt));
 746        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 747        setup_revisions(0, NULL, &rev, &opt);
 748
 749        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 750        rev.diffopt.detect_rename = 1;
 751        rev.diffopt.file = s->fp;
 752        rev.diffopt.close_file = 0;
 753        /*
 754         * If we're not going to stdout, then we definitely don't
 755         * want color, since we are going to the commit message
 756         * file (and even the "auto" setting won't work, since it
 757         * will have checked isatty on stdout).
 758         */
 759        if (s->fp != stdout)
 760                rev.diffopt.use_color = 0;
 761        run_diff_index(&rev, 1);
 762}
 763
 764static void wt_status_print_tracking(struct wt_status *s)
 765{
 766        struct strbuf sb = STRBUF_INIT;
 767        const char *cp, *ep;
 768        struct branch *branch;
 769
 770        assert(s->branch && !s->is_initial);
 771        if (prefixcmp(s->branch, "refs/heads/"))
 772                return;
 773        branch = branch_get(s->branch + 11);
 774        if (!format_tracking_info(branch, &sb))
 775                return;
 776
 777        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 778                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 779                                 "%c %.*s", comment_line_char,
 780                                 (int)(ep - cp), cp);
 781        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 782                         comment_line_char);
 783}
 784
 785static int has_unmerged(struct wt_status *s)
 786{
 787        int i;
 788
 789        for (i = 0; i < s->change.nr; i++) {
 790                struct wt_status_change_data *d;
 791                d = s->change.items[i].util;
 792                if (d->stagemask)
 793                        return 1;
 794        }
 795        return 0;
 796}
 797
 798static void show_merge_in_progress(struct wt_status *s,
 799                                struct wt_status_state *state,
 800                                const char *color)
 801{
 802        if (has_unmerged(s)) {
 803                status_printf_ln(s, color, _("You have unmerged paths."));
 804                if (advice_status_hints)
 805                        status_printf_ln(s, color,
 806                                _("  (fix conflicts and run \"git commit\")"));
 807        } else {
 808                status_printf_ln(s, color,
 809                        _("All conflicts fixed but you are still merging."));
 810                if (advice_status_hints)
 811                        status_printf_ln(s, color,
 812                                _("  (use \"git commit\" to conclude merge)"));
 813        }
 814        wt_status_print_trailer(s);
 815}
 816
 817static void show_am_in_progress(struct wt_status *s,
 818                                struct wt_status_state *state,
 819                                const char *color)
 820{
 821        status_printf_ln(s, color,
 822                _("You are in the middle of an am session."));
 823        if (state->am_empty_patch)
 824                status_printf_ln(s, color,
 825                        _("The current patch is empty."));
 826        if (advice_status_hints) {
 827                if (!state->am_empty_patch)
 828                        status_printf_ln(s, color,
 829                                _("  (fix conflicts and then run \"git am --continue\")"));
 830                status_printf_ln(s, color,
 831                        _("  (use \"git am --skip\" to skip this patch)"));
 832                status_printf_ln(s, color,
 833                        _("  (use \"git am --abort\" to restore the original branch)"));
 834        }
 835        wt_status_print_trailer(s);
 836}
 837
 838static char *read_line_from_git_path(const char *filename)
 839{
 840        struct strbuf buf = STRBUF_INIT;
 841        FILE *fp = fopen(git_path("%s", filename), "r");
 842        if (!fp) {
 843                strbuf_release(&buf);
 844                return NULL;
 845        }
 846        strbuf_getline(&buf, fp, '\n');
 847        if (!fclose(fp)) {
 848                return strbuf_detach(&buf, NULL);
 849        } else {
 850                strbuf_release(&buf);
 851                return NULL;
 852        }
 853}
 854
 855static int split_commit_in_progress(struct wt_status *s)
 856{
 857        int split_in_progress = 0;
 858        char *head = read_line_from_git_path("HEAD");
 859        char *orig_head = read_line_from_git_path("ORIG_HEAD");
 860        char *rebase_amend = read_line_from_git_path("rebase-merge/amend");
 861        char *rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
 862
 863        if (!head || !orig_head || !rebase_amend || !rebase_orig_head ||
 864            !s->branch || strcmp(s->branch, "HEAD"))
 865                return split_in_progress;
 866
 867        if (!strcmp(rebase_amend, rebase_orig_head)) {
 868                if (strcmp(head, rebase_amend))
 869                        split_in_progress = 1;
 870        } else if (strcmp(orig_head, rebase_orig_head)) {
 871                split_in_progress = 1;
 872        }
 873
 874        if (!s->amend && !s->nowarn && !s->workdir_dirty)
 875                split_in_progress = 0;
 876
 877        free(head);
 878        free(orig_head);
 879        free(rebase_amend);
 880        free(rebase_orig_head);
 881        return split_in_progress;
 882}
 883
 884static void show_rebase_in_progress(struct wt_status *s,
 885                                struct wt_status_state *state,
 886                                const char *color)
 887{
 888        struct stat st;
 889
 890        if (has_unmerged(s)) {
 891                if (state->branch)
 892                        status_printf_ln(s, color,
 893                                         _("You are currently rebasing branch '%s' on '%s'."),
 894                                         state->branch,
 895                                         state->onto);
 896                else
 897                        status_printf_ln(s, color,
 898                                         _("You are currently rebasing."));
 899                if (advice_status_hints) {
 900                        status_printf_ln(s, color,
 901                                _("  (fix conflicts and then run \"git rebase --continue\")"));
 902                        status_printf_ln(s, color,
 903                                _("  (use \"git rebase --skip\" to skip this patch)"));
 904                        status_printf_ln(s, color,
 905                                _("  (use \"git rebase --abort\" to check out the original branch)"));
 906                }
 907        } else if (state->rebase_in_progress || !stat(git_path("MERGE_MSG"), &st)) {
 908                if (state->branch)
 909                        status_printf_ln(s, color,
 910                                         _("You are currently rebasing branch '%s' on '%s'."),
 911                                         state->branch,
 912                                         state->onto);
 913                else
 914                        status_printf_ln(s, color,
 915                                         _("You are currently rebasing."));
 916                if (advice_status_hints)
 917                        status_printf_ln(s, color,
 918                                _("  (all conflicts fixed: run \"git rebase --continue\")"));
 919        } else if (split_commit_in_progress(s)) {
 920                if (state->branch)
 921                        status_printf_ln(s, color,
 922                                         _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
 923                                         state->branch,
 924                                         state->onto);
 925                else
 926                        status_printf_ln(s, color,
 927                                         _("You are currently splitting a commit during a rebase."));
 928                if (advice_status_hints)
 929                        status_printf_ln(s, color,
 930                                _("  (Once your working directory is clean, run \"git rebase --continue\")"));
 931        } else {
 932                if (state->branch)
 933                        status_printf_ln(s, color,
 934                                         _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
 935                                         state->branch,
 936                                         state->onto);
 937                else
 938                        status_printf_ln(s, color,
 939                                         _("You are currently editing a commit during a rebase."));
 940                if (advice_status_hints && !s->amend) {
 941                        status_printf_ln(s, color,
 942                                _("  (use \"git commit --amend\" to amend the current commit)"));
 943                        status_printf_ln(s, color,
 944                                _("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
 945                }
 946        }
 947        wt_status_print_trailer(s);
 948}
 949
 950static void show_cherry_pick_in_progress(struct wt_status *s,
 951                                        struct wt_status_state *state,
 952                                        const char *color)
 953{
 954        status_printf_ln(s, color, _("You are currently cherry-picking."));
 955        if (advice_status_hints) {
 956                if (has_unmerged(s))
 957                        status_printf_ln(s, color,
 958                                _("  (fix conflicts and run \"git cherry-pick --continue\")"));
 959                else
 960                        status_printf_ln(s, color,
 961                                _("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
 962                status_printf_ln(s, color,
 963                        _("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
 964        }
 965        wt_status_print_trailer(s);
 966}
 967
 968static void show_revert_in_progress(struct wt_status *s,
 969                                        struct wt_status_state *state,
 970                                        const char *color)
 971{
 972        status_printf_ln(s, color, _("You are currently reverting commit %s."),
 973                         find_unique_abbrev(state->revert_head_sha1, DEFAULT_ABBREV));
 974        if (advice_status_hints) {
 975                if (has_unmerged(s))
 976                        status_printf_ln(s, color,
 977                                _("  (fix conflicts and run \"git revert --continue\")"));
 978                else
 979                        status_printf_ln(s, color,
 980                                _("  (all conflicts fixed: run \"git revert --continue\")"));
 981                status_printf_ln(s, color,
 982                        _("  (use \"git revert --abort\" to cancel the revert operation)"));
 983        }
 984        wt_status_print_trailer(s);
 985}
 986
 987static void show_bisect_in_progress(struct wt_status *s,
 988                                struct wt_status_state *state,
 989                                const char *color)
 990{
 991        if (state->branch)
 992                status_printf_ln(s, color,
 993                                 _("You are currently bisecting, started from branch '%s'."),
 994                                 state->branch);
 995        else
 996                status_printf_ln(s, color,
 997                                 _("You are currently bisecting."));
 998        if (advice_status_hints)
 999                status_printf_ln(s, color,
1000                        _("  (use \"git bisect reset\" to get back to the original branch)"));
1001        wt_status_print_trailer(s);
1002}
1003
1004/*
1005 * Extract branch information from rebase/bisect
1006 */
1007static char *read_and_strip_branch(const char *path)
1008{
1009        struct strbuf sb = STRBUF_INIT;
1010        unsigned char sha1[20];
1011
1012        if (strbuf_read_file(&sb, git_path("%s", path), 0) <= 0)
1013                goto got_nothing;
1014
1015        while (&sb.len && sb.buf[sb.len - 1] == '\n')
1016                strbuf_setlen(&sb, sb.len - 1);
1017        if (!sb.len)
1018                goto got_nothing;
1019        if (!prefixcmp(sb.buf, "refs/heads/"))
1020                strbuf_remove(&sb,0, strlen("refs/heads/"));
1021        else if (!prefixcmp(sb.buf, "refs/"))
1022                ;
1023        else if (!get_sha1_hex(sb.buf, sha1)) {
1024                const char *abbrev;
1025                abbrev = find_unique_abbrev(sha1, DEFAULT_ABBREV);
1026                strbuf_reset(&sb);
1027                strbuf_addstr(&sb, abbrev);
1028        } else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1029                goto got_nothing;
1030        else                    /* bisect */
1031                ;
1032        return strbuf_detach(&sb, NULL);
1033
1034got_nothing:
1035        strbuf_release(&sb);
1036        return NULL;
1037}
1038
1039struct grab_1st_switch_cbdata {
1040        struct strbuf buf;
1041        unsigned char nsha1[20];
1042};
1043
1044static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
1045                           const char *email, unsigned long timestamp, int tz,
1046                           const char *message, void *cb_data)
1047{
1048        struct grab_1st_switch_cbdata *cb = cb_data;
1049        const char *target = NULL, *end;
1050
1051        if (prefixcmp(message, "checkout: moving from "))
1052                return 0;
1053        message += strlen("checkout: moving from ");
1054        target = strstr(message, " to ");
1055        if (!target)
1056                return 0;
1057        target += strlen(" to ");
1058        strbuf_reset(&cb->buf);
1059        hashcpy(cb->nsha1, nsha1);
1060        for (end = target; *end && *end != '\n'; end++)
1061                ;
1062        strbuf_add(&cb->buf, target, end - target);
1063        return 1;
1064}
1065
1066static void wt_status_get_detached_from(struct wt_status_state *state)
1067{
1068        struct grab_1st_switch_cbdata cb;
1069        struct commit *commit;
1070        unsigned char sha1[20];
1071        char *ref = NULL;
1072
1073        strbuf_init(&cb.buf, 0);
1074        if (for_each_reflog_ent_reverse("HEAD", grab_1st_switch, &cb) <= 0) {
1075                strbuf_release(&cb.buf);
1076                return;
1077        }
1078
1079        if (dwim_ref(cb.buf.buf, cb.buf.len, sha1, &ref) == 1 &&
1080            /* sha1 is a commit? match without further lookup */
1081            (!hashcmp(cb.nsha1, sha1) ||
1082             /* perhaps sha1 is a tag, try to dereference to a commit */
1083             ((commit = lookup_commit_reference_gently(sha1, 1)) != NULL &&
1084              !hashcmp(cb.nsha1, commit->object.sha1)))) {
1085                int ofs;
1086                if (!prefixcmp(ref, "refs/tags/"))
1087                        ofs = strlen("refs/tags/");
1088                else if (!prefixcmp(ref, "refs/remotes/"))
1089                        ofs = strlen("refs/remotes/");
1090                else
1091                        ofs = 0;
1092                state->detached_from = xstrdup(ref + ofs);
1093        } else
1094                state->detached_from =
1095                        xstrdup(find_unique_abbrev(cb.nsha1, DEFAULT_ABBREV));
1096        hashcpy(state->detached_sha1, cb.nsha1);
1097
1098        free(ref);
1099        strbuf_release(&cb.buf);
1100}
1101
1102void wt_status_get_state(struct wt_status_state *state,
1103                         int get_detached_from)
1104{
1105        struct stat st;
1106        unsigned char sha1[20];
1107
1108        if (!stat(git_path("MERGE_HEAD"), &st)) {
1109                state->merge_in_progress = 1;
1110        } else if (!stat(git_path("rebase-apply"), &st)) {
1111                if (!stat(git_path("rebase-apply/applying"), &st)) {
1112                        state->am_in_progress = 1;
1113                        if (!stat(git_path("rebase-apply/patch"), &st) && !st.st_size)
1114                                state->am_empty_patch = 1;
1115                } else {
1116                        state->rebase_in_progress = 1;
1117                        state->branch = read_and_strip_branch("rebase-apply/head-name");
1118                        state->onto = read_and_strip_branch("rebase-apply/onto");
1119                }
1120        } else if (!stat(git_path("rebase-merge"), &st)) {
1121                if (!stat(git_path("rebase-merge/interactive"), &st))
1122                        state->rebase_interactive_in_progress = 1;
1123                else
1124                        state->rebase_in_progress = 1;
1125                state->branch = read_and_strip_branch("rebase-merge/head-name");
1126                state->onto = read_and_strip_branch("rebase-merge/onto");
1127        } else if (!stat(git_path("CHERRY_PICK_HEAD"), &st)) {
1128                state->cherry_pick_in_progress = 1;
1129        }
1130        if (!stat(git_path("BISECT_LOG"), &st)) {
1131                state->bisect_in_progress = 1;
1132                state->branch = read_and_strip_branch("BISECT_START");
1133        }
1134        if (!stat(git_path("REVERT_HEAD"), &st) &&
1135            !get_sha1("REVERT_HEAD", sha1)) {
1136                state->revert_in_progress = 1;
1137                hashcpy(state->revert_head_sha1, sha1);
1138        }
1139
1140        if (get_detached_from)
1141                wt_status_get_detached_from(state);
1142}
1143
1144static void wt_status_print_state(struct wt_status *s,
1145                                  struct wt_status_state *state)
1146{
1147        const char *state_color = color(WT_STATUS_HEADER, s);
1148        if (state->merge_in_progress)
1149                show_merge_in_progress(s, state, state_color);
1150        else if (state->am_in_progress)
1151                show_am_in_progress(s, state, state_color);
1152        else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1153                show_rebase_in_progress(s, state, state_color);
1154        else if (state->cherry_pick_in_progress)
1155                show_cherry_pick_in_progress(s, state, state_color);
1156        else if (state->revert_in_progress)
1157                show_revert_in_progress(s, state, state_color);
1158        if (state->bisect_in_progress)
1159                show_bisect_in_progress(s, state, state_color);
1160}
1161
1162void wt_status_print(struct wt_status *s)
1163{
1164        const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1165        const char *branch_status_color = color(WT_STATUS_HEADER, s);
1166        struct wt_status_state state;
1167
1168        memset(&state, 0, sizeof(state));
1169        wt_status_get_state(&state,
1170                            s->branch && !strcmp(s->branch, "HEAD"));
1171
1172        if (s->branch) {
1173                const char *on_what = _("On branch ");
1174                const char *branch_name = s->branch;
1175                if (!prefixcmp(branch_name, "refs/heads/"))
1176                        branch_name += 11;
1177                else if (!strcmp(branch_name, "HEAD")) {
1178                        branch_status_color = color(WT_STATUS_NOBRANCH, s);
1179                        if (state.rebase_in_progress || state.rebase_interactive_in_progress) {
1180                                on_what = _("rebase in progress; onto ");
1181                                branch_name = state.onto;
1182                        } else if (state.detached_from) {
1183                                unsigned char sha1[20];
1184                                branch_name = state.detached_from;
1185                                if (!get_sha1("HEAD", sha1) &&
1186                                    !hashcmp(sha1, state.detached_sha1))
1187                                        on_what = _("HEAD detached at ");
1188                                else
1189                                        on_what = _("HEAD detached from ");
1190                        } else {
1191                                branch_name = "";
1192                                on_what = _("Not currently on any branch.");
1193                        }
1194                }
1195                status_printf(s, color(WT_STATUS_HEADER, s), "");
1196                status_printf_more(s, branch_status_color, "%s", on_what);
1197                status_printf_more(s, branch_color, "%s\n", branch_name);
1198                if (!s->is_initial)
1199                        wt_status_print_tracking(s);
1200        }
1201
1202        wt_status_print_state(s, &state);
1203        free(state.branch);
1204        free(state.onto);
1205        free(state.detached_from);
1206
1207        if (s->is_initial) {
1208                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1209                status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
1210                status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
1211        }
1212
1213        wt_status_print_updated(s);
1214        wt_status_print_unmerged(s);
1215        wt_status_print_changed(s);
1216        if (s->submodule_summary &&
1217            (!s->ignore_submodule_arg ||
1218             strcmp(s->ignore_submodule_arg, "all"))) {
1219                wt_status_print_submodule_summary(s, 0);  /* staged */
1220                wt_status_print_submodule_summary(s, 1);  /* unstaged */
1221        }
1222        if (s->show_untracked_files) {
1223                wt_status_print_other(s, &s->untracked, _("Untracked files"), "add");
1224                if (s->show_ignored_files)
1225                        wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1226                if (advice_status_u_option && 2000 < s->untracked_in_ms) {
1227                        status_printf_ln(s, GIT_COLOR_NORMAL, "");
1228                        status_printf_ln(s, GIT_COLOR_NORMAL,
1229                                         _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
1230                                           "may speed it up, but you have to be careful not to forget to add\n"
1231                                           "new files yourself (see 'git help status')."),
1232                                         s->untracked_in_ms / 1000.0);
1233                }
1234        } else if (s->commitable)
1235                status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1236                        advice_status_hints
1237                        ? _(" (use -u option to show untracked files)") : "");
1238
1239        if (s->verbose)
1240                wt_status_print_verbose(s);
1241        if (!s->commitable) {
1242                if (s->amend)
1243                        status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1244                else if (s->nowarn)
1245                        ; /* nothing */
1246                else if (s->workdir_dirty) {
1247                        if (advice_status_hints)
1248                                printf(_("no changes added to commit "
1249                                         "(use \"git add\" and/or \"git commit -a\")\n"));
1250                        else
1251                                printf(_("no changes added to commit\n"));
1252                } else if (s->untracked.nr) {
1253                        if (advice_status_hints)
1254                                printf(_("nothing added to commit but untracked files "
1255                                         "present (use \"git add\" to track)\n"));
1256                        else
1257                                printf(_("nothing added to commit but untracked files present\n"));
1258                } else if (s->is_initial) {
1259                        if (advice_status_hints)
1260                                printf(_("nothing to commit (create/copy files "
1261                                         "and use \"git add\" to track)\n"));
1262                        else
1263                                printf(_("nothing to commit\n"));
1264                } else if (!s->show_untracked_files) {
1265                        if (advice_status_hints)
1266                                printf(_("nothing to commit (use -u to show untracked files)\n"));
1267                        else
1268                                printf(_("nothing to commit\n"));
1269                } else
1270                        printf(_("nothing to commit, working directory clean\n"));
1271        }
1272}
1273
1274static void wt_shortstatus_unmerged(struct string_list_item *it,
1275                           struct wt_status *s)
1276{
1277        struct wt_status_change_data *d = it->util;
1278        const char *how = "??";
1279
1280        switch (d->stagemask) {
1281        case 1: how = "DD"; break; /* both deleted */
1282        case 2: how = "AU"; break; /* added by us */
1283        case 3: how = "UD"; break; /* deleted by them */
1284        case 4: how = "UA"; break; /* added by them */
1285        case 5: how = "DU"; break; /* deleted by us */
1286        case 6: how = "AA"; break; /* both added */
1287        case 7: how = "UU"; break; /* both modified */
1288        }
1289        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1290        if (s->null_termination) {
1291                fprintf(stdout, " %s%c", it->string, 0);
1292        } else {
1293                struct strbuf onebuf = STRBUF_INIT;
1294                const char *one;
1295                one = quote_path(it->string, s->prefix, &onebuf);
1296                printf(" %s\n", one);
1297                strbuf_release(&onebuf);
1298        }
1299}
1300
1301static void wt_shortstatus_status(struct string_list_item *it,
1302                         struct wt_status *s)
1303{
1304        struct wt_status_change_data *d = it->util;
1305
1306        if (d->index_status)
1307                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
1308        else
1309                putchar(' ');
1310        if (d->worktree_status)
1311                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
1312        else
1313                putchar(' ');
1314        putchar(' ');
1315        if (s->null_termination) {
1316                fprintf(stdout, "%s%c", it->string, 0);
1317                if (d->head_path)
1318                        fprintf(stdout, "%s%c", d->head_path, 0);
1319        } else {
1320                struct strbuf onebuf = STRBUF_INIT;
1321                const char *one;
1322                if (d->head_path) {
1323                        one = quote_path(d->head_path, s->prefix, &onebuf);
1324                        if (*one != '"' && strchr(one, ' ') != NULL) {
1325                                putchar('"');
1326                                strbuf_addch(&onebuf, '"');
1327                                one = onebuf.buf;
1328                        }
1329                        printf("%s -> ", one);
1330                        strbuf_release(&onebuf);
1331                }
1332                one = quote_path(it->string, s->prefix, &onebuf);
1333                if (*one != '"' && strchr(one, ' ') != NULL) {
1334                        putchar('"');
1335                        strbuf_addch(&onebuf, '"');
1336                        one = onebuf.buf;
1337                }
1338                printf("%s\n", one);
1339                strbuf_release(&onebuf);
1340        }
1341}
1342
1343static void wt_shortstatus_other(struct string_list_item *it,
1344                                 struct wt_status *s, const char *sign)
1345{
1346        if (s->null_termination) {
1347                fprintf(stdout, "%s %s%c", sign, it->string, 0);
1348        } else {
1349                struct strbuf onebuf = STRBUF_INIT;
1350                const char *one;
1351                one = quote_path(it->string, s->prefix, &onebuf);
1352                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
1353                printf(" %s\n", one);
1354                strbuf_release(&onebuf);
1355        }
1356}
1357
1358static void wt_shortstatus_print_tracking(struct wt_status *s)
1359{
1360        struct branch *branch;
1361        const char *header_color = color(WT_STATUS_HEADER, s);
1362        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
1363        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
1364
1365        const char *base;
1366        const char *branch_name;
1367        int num_ours, num_theirs;
1368
1369        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
1370
1371        if (!s->branch)
1372                return;
1373        branch_name = s->branch;
1374
1375        if (!prefixcmp(branch_name, "refs/heads/"))
1376                branch_name += 11;
1377        else if (!strcmp(branch_name, "HEAD")) {
1378                branch_name = _("HEAD (no branch)");
1379                branch_color_local = color(WT_STATUS_NOBRANCH, s);
1380        }
1381
1382        branch = branch_get(s->branch + 11);
1383        if (s->is_initial)
1384                color_fprintf(s->fp, header_color, _("Initial commit on "));
1385        if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
1386                color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1387                fputc(s->null_termination ? '\0' : '\n', s->fp);
1388                return;
1389        }
1390
1391        base = branch->merge[0]->dst;
1392        base = shorten_unambiguous_ref(base, 0);
1393        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
1394        color_fprintf(s->fp, header_color, "...");
1395        color_fprintf(s->fp, branch_color_remote, "%s", base);
1396
1397        color_fprintf(s->fp, header_color, " [");
1398        if (!num_ours) {
1399                color_fprintf(s->fp, header_color, _("behind "));
1400                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1401        } else if (!num_theirs) {
1402                color_fprintf(s->fp, header_color, _("ahead "));
1403                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1404        } else {
1405                color_fprintf(s->fp, header_color, _("ahead "));
1406                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
1407                color_fprintf(s->fp, header_color, _(", behind "));
1408                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
1409        }
1410
1411        color_fprintf(s->fp, header_color, "]");
1412        fputc(s->null_termination ? '\0' : '\n', s->fp);
1413}
1414
1415void wt_shortstatus_print(struct wt_status *s)
1416{
1417        int i;
1418
1419        if (s->show_branch)
1420                wt_shortstatus_print_tracking(s);
1421
1422        for (i = 0; i < s->change.nr; i++) {
1423                struct wt_status_change_data *d;
1424                struct string_list_item *it;
1425
1426                it = &(s->change.items[i]);
1427                d = it->util;
1428                if (d->stagemask)
1429                        wt_shortstatus_unmerged(it, s);
1430                else
1431                        wt_shortstatus_status(it, s);
1432        }
1433        for (i = 0; i < s->untracked.nr; i++) {
1434                struct string_list_item *it;
1435
1436                it = &(s->untracked.items[i]);
1437                wt_shortstatus_other(it, s, "??");
1438        }
1439        for (i = 0; i < s->ignored.nr; i++) {
1440                struct string_list_item *it;
1441
1442                it = &(s->ignored.items[i]);
1443                wt_shortstatus_other(it, s, "!!");
1444        }
1445}
1446
1447void wt_porcelain_print(struct wt_status *s)
1448{
1449        s->use_color = 0;
1450        s->relative_paths = 0;
1451        s->prefix = NULL;
1452        wt_shortstatus_print(s);
1453}