Andrew's git / gitweb.git / wt-status.c
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wt-status.con commit t/t7105-reset-patch.sh: Add a PERL prerequisite (d2b263c)
   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
  15static char default_wt_status_colors[][COLOR_MAXLEN] = {
  16        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  17        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  18        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  19        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  20        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  21        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  22        GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
  23        GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
  24};
  25
  26static const char *color(int slot, struct wt_status *s)
  27{
  28        return s->use_color > 0 ? s->color_palette[slot] : "";
  29}
  30
  31void wt_status_prepare(struct wt_status *s)
  32{
  33        unsigned char sha1[20];
  34        const char *head;
  35
  36        memset(s, 0, sizeof(*s));
  37        memcpy(s->color_palette, default_wt_status_colors,
  38               sizeof(default_wt_status_colors));
  39        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  40        s->use_color = -1;
  41        s->relative_paths = 1;
  42        head = resolve_ref("HEAD", sha1, 0, NULL);
  43        s->branch = head ? xstrdup(head) : NULL;
  44        s->reference = "HEAD";
  45        s->fp = stdout;
  46        s->index_file = get_index_file();
  47        s->change.strdup_strings = 1;
  48        s->untracked.strdup_strings = 1;
  49        s->ignored.strdup_strings = 1;
  50}
  51
  52static void wt_status_print_unmerged_header(struct wt_status *s)
  53{
  54        const char *c = color(WT_STATUS_HEADER, s);
  55
  56        color_fprintf_ln(s->fp, c, "# Unmerged paths:");
  57        if (!advice_status_hints)
  58                return;
  59        if (s->in_merge)
  60                ;
  61        else if (!s->is_initial)
  62                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  63        else
  64                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  65        color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" as appropriate to mark resolution)");
  66        color_fprintf_ln(s->fp, c, "#");
  67}
  68
  69static void wt_status_print_cached_header(struct wt_status *s)
  70{
  71        const char *c = color(WT_STATUS_HEADER, s);
  72
  73        color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  74        if (!advice_status_hints)
  75                return;
  76        if (s->in_merge)
  77                ; /* NEEDSWORK: use "git reset --unresolve"??? */
  78        else if (!s->is_initial)
  79                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  80        else
  81                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  82        color_fprintf_ln(s->fp, c, "#");
  83}
  84
  85static void wt_status_print_dirty_header(struct wt_status *s,
  86                                         int has_deleted,
  87                                         int has_dirty_submodules)
  88{
  89        const char *c = color(WT_STATUS_HEADER, s);
  90
  91        color_fprintf_ln(s->fp, c, "# Changed but not updated:");
  92        if (!advice_status_hints)
  93                return;
  94        if (!has_deleted)
  95                color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
  96        else
  97                color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
  98        color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
  99        if (has_dirty_submodules)
 100                color_fprintf_ln(s->fp, c, "#   (commit or discard the untracked or modified content in submodules)");
 101        color_fprintf_ln(s->fp, c, "#");
 102}
 103
 104static void wt_status_print_other_header(struct wt_status *s,
 105                                         const char *what,
 106                                         const char *how)
 107{
 108        const char *c = color(WT_STATUS_HEADER, s);
 109        color_fprintf_ln(s->fp, c, "# %s files:", what);
 110        if (!advice_status_hints)
 111                return;
 112        color_fprintf_ln(s->fp, c, "#   (use \"git %s <file>...\" to include in what will be committed)", how);
 113        color_fprintf_ln(s->fp, c, "#");
 114}
 115
 116static void wt_status_print_trailer(struct wt_status *s)
 117{
 118        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 119}
 120
 121#define quote_path quote_path_relative
 122
 123static void wt_status_print_unmerged_data(struct wt_status *s,
 124                                          struct string_list_item *it)
 125{
 126        const char *c = color(WT_STATUS_UNMERGED, s);
 127        struct wt_status_change_data *d = it->util;
 128        struct strbuf onebuf = STRBUF_INIT;
 129        const char *one, *how = "bug";
 130
 131        one = quote_path(it->string, -1, &onebuf, s->prefix);
 132        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 133        switch (d->stagemask) {
 134        case 1: how = "both deleted:"; break;
 135        case 2: how = "added by us:"; break;
 136        case 3: how = "deleted by them:"; break;
 137        case 4: how = "added by them:"; break;
 138        case 5: how = "deleted by us:"; break;
 139        case 6: how = "both added:"; break;
 140        case 7: how = "both modified:"; break;
 141        }
 142        color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 143        strbuf_release(&onebuf);
 144}
 145
 146static void wt_status_print_change_data(struct wt_status *s,
 147                                        int change_type,
 148                                        struct string_list_item *it)
 149{
 150        struct wt_status_change_data *d = it->util;
 151        const char *c = color(change_type, s);
 152        int status = status;
 153        char *one_name;
 154        char *two_name;
 155        const char *one, *two;
 156        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 157        struct strbuf extra = STRBUF_INIT;
 158
 159        one_name = two_name = it->string;
 160        switch (change_type) {
 161        case WT_STATUS_UPDATED:
 162                status = d->index_status;
 163                if (d->head_path)
 164                        one_name = d->head_path;
 165                break;
 166        case WT_STATUS_CHANGED:
 167                if (d->new_submodule_commits || d->dirty_submodule) {
 168                        strbuf_addstr(&extra, " (");
 169                        if (d->new_submodule_commits)
 170                                strbuf_addf(&extra, "new commits, ");
 171                        if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
 172                                strbuf_addf(&extra, "modified content, ");
 173                        if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
 174                                strbuf_addf(&extra, "untracked content, ");
 175                        strbuf_setlen(&extra, extra.len - 2);
 176                        strbuf_addch(&extra, ')');
 177                }
 178                status = d->worktree_status;
 179                break;
 180        }
 181
 182        one = quote_path(one_name, -1, &onebuf, s->prefix);
 183        two = quote_path(two_name, -1, &twobuf, s->prefix);
 184
 185        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 186        switch (status) {
 187        case DIFF_STATUS_ADDED:
 188                color_fprintf(s->fp, c, "new file:   %s", one);
 189                break;
 190        case DIFF_STATUS_COPIED:
 191                color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 192                break;
 193        case DIFF_STATUS_DELETED:
 194                color_fprintf(s->fp, c, "deleted:    %s", one);
 195                break;
 196        case DIFF_STATUS_MODIFIED:
 197                color_fprintf(s->fp, c, "modified:   %s", one);
 198                break;
 199        case DIFF_STATUS_RENAMED:
 200                color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 201                break;
 202        case DIFF_STATUS_TYPE_CHANGED:
 203                color_fprintf(s->fp, c, "typechange: %s", one);
 204                break;
 205        case DIFF_STATUS_UNKNOWN:
 206                color_fprintf(s->fp, c, "unknown:    %s", one);
 207                break;
 208        case DIFF_STATUS_UNMERGED:
 209                color_fprintf(s->fp, c, "unmerged:   %s", one);
 210                break;
 211        default:
 212                die("bug: unhandled diff status %c", status);
 213        }
 214        if (extra.len) {
 215                color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "%s", extra.buf);
 216                strbuf_release(&extra);
 217        }
 218        fprintf(s->fp, "\n");
 219        strbuf_release(&onebuf);
 220        strbuf_release(&twobuf);
 221}
 222
 223static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 224                                         struct diff_options *options,
 225                                         void *data)
 226{
 227        struct wt_status *s = data;
 228        int i;
 229
 230        if (!q->nr)
 231                return;
 232        s->workdir_dirty = 1;
 233        for (i = 0; i < q->nr; i++) {
 234                struct diff_filepair *p;
 235                struct string_list_item *it;
 236                struct wt_status_change_data *d;
 237
 238                p = q->queue[i];
 239                it = string_list_insert(&s->change, p->one->path);
 240                d = it->util;
 241                if (!d) {
 242                        d = xcalloc(1, sizeof(*d));
 243                        it->util = d;
 244                }
 245                if (!d->worktree_status)
 246                        d->worktree_status = p->status;
 247                d->dirty_submodule = p->two->dirty_submodule;
 248                if (S_ISGITLINK(p->two->mode))
 249                        d->new_submodule_commits = !!hashcmp(p->one->sha1, p->two->sha1);
 250        }
 251}
 252
 253static int unmerged_mask(const char *path)
 254{
 255        int pos, mask;
 256        struct cache_entry *ce;
 257
 258        pos = cache_name_pos(path, strlen(path));
 259        if (0 <= pos)
 260                return 0;
 261
 262        mask = 0;
 263        pos = -pos-1;
 264        while (pos < active_nr) {
 265                ce = active_cache[pos++];
 266                if (strcmp(ce->name, path) || !ce_stage(ce))
 267                        break;
 268                mask |= (1 << (ce_stage(ce) - 1));
 269        }
 270        return mask;
 271}
 272
 273static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 274                                         struct diff_options *options,
 275                                         void *data)
 276{
 277        struct wt_status *s = data;
 278        int i;
 279
 280        for (i = 0; i < q->nr; i++) {
 281                struct diff_filepair *p;
 282                struct string_list_item *it;
 283                struct wt_status_change_data *d;
 284
 285                p = q->queue[i];
 286                it = string_list_insert(&s->change, p->two->path);
 287                d = it->util;
 288                if (!d) {
 289                        d = xcalloc(1, sizeof(*d));
 290                        it->util = d;
 291                }
 292                if (!d->index_status)
 293                        d->index_status = p->status;
 294                switch (p->status) {
 295                case DIFF_STATUS_COPIED:
 296                case DIFF_STATUS_RENAMED:
 297                        d->head_path = xstrdup(p->one->path);
 298                        break;
 299                case DIFF_STATUS_UNMERGED:
 300                        d->stagemask = unmerged_mask(p->two->path);
 301                        break;
 302                }
 303        }
 304}
 305
 306static void wt_status_collect_changes_worktree(struct wt_status *s)
 307{
 308        struct rev_info rev;
 309
 310        init_revisions(&rev, NULL);
 311        setup_revisions(0, NULL, &rev, NULL);
 312        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 313        DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
 314        if (!s->show_untracked_files)
 315                DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
 316        if (s->ignore_submodule_arg)
 317                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 318        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 319        rev.diffopt.format_callback_data = s;
 320        rev.prune_data = s->pathspec;
 321        run_diff_files(&rev, 0);
 322}
 323
 324static void wt_status_collect_changes_index(struct wt_status *s)
 325{
 326        struct rev_info rev;
 327        struct setup_revision_opt opt;
 328
 329        init_revisions(&rev, NULL);
 330        memset(&opt, 0, sizeof(opt));
 331        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 332        setup_revisions(0, NULL, &rev, &opt);
 333
 334        if (s->ignore_submodule_arg)
 335                handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
 336
 337        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 338        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 339        rev.diffopt.format_callback_data = s;
 340        rev.diffopt.detect_rename = 1;
 341        rev.diffopt.rename_limit = 200;
 342        rev.diffopt.break_opt = 0;
 343        rev.prune_data = s->pathspec;
 344        run_diff_index(&rev, 1);
 345}
 346
 347static void wt_status_collect_changes_initial(struct wt_status *s)
 348{
 349        int i;
 350
 351        for (i = 0; i < active_nr; i++) {
 352                struct string_list_item *it;
 353                struct wt_status_change_data *d;
 354                struct cache_entry *ce = active_cache[i];
 355
 356                if (!ce_path_match(ce, s->pathspec))
 357                        continue;
 358                it = string_list_insert(&s->change, ce->name);
 359                d = it->util;
 360                if (!d) {
 361                        d = xcalloc(1, sizeof(*d));
 362                        it->util = d;
 363                }
 364                if (ce_stage(ce)) {
 365                        d->index_status = DIFF_STATUS_UNMERGED;
 366                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 367                }
 368                else
 369                        d->index_status = DIFF_STATUS_ADDED;
 370        }
 371}
 372
 373static void wt_status_collect_untracked(struct wt_status *s)
 374{
 375        int i;
 376        struct dir_struct dir;
 377
 378        if (!s->show_untracked_files)
 379                return;
 380        memset(&dir, 0, sizeof(dir));
 381        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 382                dir.flags |=
 383                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 384        setup_standard_excludes(&dir);
 385
 386        fill_directory(&dir, s->pathspec);
 387        for (i = 0; i < dir.nr; i++) {
 388                struct dir_entry *ent = dir.entries[i];
 389                if (!cache_name_is_other(ent->name, ent->len))
 390                        continue;
 391                if (!match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 392                        continue;
 393                string_list_insert(&s->untracked, ent->name);
 394                free(ent);
 395        }
 396
 397        if (s->show_ignored_files) {
 398                dir.nr = 0;
 399                dir.flags = DIR_SHOW_IGNORED | DIR_SHOW_OTHER_DIRECTORIES;
 400                fill_directory(&dir, s->pathspec);
 401                for (i = 0; i < dir.nr; i++) {
 402                        struct dir_entry *ent = dir.entries[i];
 403                        if (!cache_name_is_other(ent->name, ent->len))
 404                                continue;
 405                        if (!match_pathspec(s->pathspec, ent->name, ent->len, 0, NULL))
 406                                continue;
 407                        string_list_insert(&s->ignored, ent->name);
 408                        free(ent);
 409                }
 410        }
 411
 412        free(dir.entries);
 413}
 414
 415void wt_status_collect(struct wt_status *s)
 416{
 417        wt_status_collect_changes_worktree(s);
 418
 419        if (s->is_initial)
 420                wt_status_collect_changes_initial(s);
 421        else
 422                wt_status_collect_changes_index(s);
 423        wt_status_collect_untracked(s);
 424}
 425
 426static void wt_status_print_unmerged(struct wt_status *s)
 427{
 428        int shown_header = 0;
 429        int i;
 430
 431        for (i = 0; i < s->change.nr; i++) {
 432                struct wt_status_change_data *d;
 433                struct string_list_item *it;
 434                it = &(s->change.items[i]);
 435                d = it->util;
 436                if (!d->stagemask)
 437                        continue;
 438                if (!shown_header) {
 439                        wt_status_print_unmerged_header(s);
 440                        shown_header = 1;
 441                }
 442                wt_status_print_unmerged_data(s, it);
 443        }
 444        if (shown_header)
 445                wt_status_print_trailer(s);
 446
 447}
 448
 449static void wt_status_print_updated(struct wt_status *s)
 450{
 451        int shown_header = 0;
 452        int i;
 453
 454        for (i = 0; i < s->change.nr; i++) {
 455                struct wt_status_change_data *d;
 456                struct string_list_item *it;
 457                it = &(s->change.items[i]);
 458                d = it->util;
 459                if (!d->index_status ||
 460                    d->index_status == DIFF_STATUS_UNMERGED)
 461                        continue;
 462                if (!shown_header) {
 463                        wt_status_print_cached_header(s);
 464                        s->commitable = 1;
 465                        shown_header = 1;
 466                }
 467                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 468        }
 469        if (shown_header)
 470                wt_status_print_trailer(s);
 471}
 472
 473/*
 474 * -1 : has delete
 475 *  0 : no change
 476 *  1 : some change but no delete
 477 */
 478static int wt_status_check_worktree_changes(struct wt_status *s,
 479                                             int *dirty_submodules)
 480{
 481        int i;
 482        int changes = 0;
 483
 484        *dirty_submodules = 0;
 485
 486        for (i = 0; i < s->change.nr; i++) {
 487                struct wt_status_change_data *d;
 488                d = s->change.items[i].util;
 489                if (!d->worktree_status ||
 490                    d->worktree_status == DIFF_STATUS_UNMERGED)
 491                        continue;
 492                if (!changes)
 493                        changes = 1;
 494                if (d->dirty_submodule)
 495                        *dirty_submodules = 1;
 496                if (d->worktree_status == DIFF_STATUS_DELETED)
 497                        changes = -1;
 498        }
 499        return changes;
 500}
 501
 502static void wt_status_print_changed(struct wt_status *s)
 503{
 504        int i, dirty_submodules;
 505        int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
 506
 507        if (!worktree_changes)
 508                return;
 509
 510        wt_status_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
 511
 512        for (i = 0; i < s->change.nr; i++) {
 513                struct wt_status_change_data *d;
 514                struct string_list_item *it;
 515                it = &(s->change.items[i]);
 516                d = it->util;
 517                if (!d->worktree_status ||
 518                    d->worktree_status == DIFF_STATUS_UNMERGED)
 519                        continue;
 520                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 521        }
 522        wt_status_print_trailer(s);
 523}
 524
 525static void wt_status_print_submodule_summary(struct wt_status *s, int uncommitted)
 526{
 527        struct child_process sm_summary;
 528        char summary_limit[64];
 529        char index[PATH_MAX];
 530        const char *env[] = { NULL, NULL };
 531        const char *argv[8];
 532
 533        env[0] =        index;
 534        argv[0] =       "submodule";
 535        argv[1] =       "summary";
 536        argv[2] =       uncommitted ? "--files" : "--cached";
 537        argv[3] =       "--for-status";
 538        argv[4] =       "--summary-limit";
 539        argv[5] =       summary_limit;
 540        argv[6] =       uncommitted ? NULL : (s->amend ? "HEAD^" : "HEAD");
 541        argv[7] =       NULL;
 542
 543        sprintf(summary_limit, "%d", s->submodule_summary);
 544        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 545
 546        memset(&sm_summary, 0, sizeof(sm_summary));
 547        sm_summary.argv = argv;
 548        sm_summary.env = env;
 549        sm_summary.git_cmd = 1;
 550        sm_summary.no_stdin = 1;
 551        fflush(s->fp);
 552        sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 553        run_command(&sm_summary);
 554}
 555
 556static void wt_status_print_other(struct wt_status *s,
 557                                  struct string_list *l,
 558                                  const char *what,
 559                                  const char *how)
 560{
 561        int i;
 562        struct strbuf buf = STRBUF_INIT;
 563
 564        if (!s->untracked.nr)
 565                return;
 566
 567        wt_status_print_other_header(s, what, how);
 568
 569        for (i = 0; i < l->nr; i++) {
 570                struct string_list_item *it;
 571                it = &(l->items[i]);
 572                color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 573                color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 574                                 quote_path(it->string, strlen(it->string),
 575                                            &buf, s->prefix));
 576        }
 577        strbuf_release(&buf);
 578}
 579
 580static void wt_status_print_verbose(struct wt_status *s)
 581{
 582        struct rev_info rev;
 583        struct setup_revision_opt opt;
 584
 585        init_revisions(&rev, NULL);
 586        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 587
 588        memset(&opt, 0, sizeof(opt));
 589        opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
 590        setup_revisions(0, NULL, &rev, &opt);
 591
 592        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 593        rev.diffopt.detect_rename = 1;
 594        rev.diffopt.file = s->fp;
 595        rev.diffopt.close_file = 0;
 596        /*
 597         * If we're not going to stdout, then we definitely don't
 598         * want color, since we are going to the commit message
 599         * file (and even the "auto" setting won't work, since it
 600         * will have checked isatty on stdout).
 601         */
 602        if (s->fp != stdout)
 603                DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 604        run_diff_index(&rev, 1);
 605}
 606
 607static void wt_status_print_tracking(struct wt_status *s)
 608{
 609        struct strbuf sb = STRBUF_INIT;
 610        const char *cp, *ep;
 611        struct branch *branch;
 612
 613        assert(s->branch && !s->is_initial);
 614        if (prefixcmp(s->branch, "refs/heads/"))
 615                return;
 616        branch = branch_get(s->branch + 11);
 617        if (!format_tracking_info(branch, &sb))
 618                return;
 619
 620        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 621                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 622                                 "# %.*s", (int)(ep - cp), cp);
 623        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 624}
 625
 626void wt_status_print(struct wt_status *s)
 627{
 628        const char *branch_color = color(WT_STATUS_HEADER, s);
 629
 630        if (s->branch) {
 631                const char *on_what = "On branch ";
 632                const char *branch_name = s->branch;
 633                if (!prefixcmp(branch_name, "refs/heads/"))
 634                        branch_name += 11;
 635                else if (!strcmp(branch_name, "HEAD")) {
 636                        branch_name = "";
 637                        branch_color = color(WT_STATUS_NOBRANCH, s);
 638                        on_what = "Not currently on any branch.";
 639                }
 640                color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 641                color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 642                if (!s->is_initial)
 643                        wt_status_print_tracking(s);
 644        }
 645
 646        if (s->is_initial) {
 647                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 648                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 649                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 650        }
 651
 652        wt_status_print_updated(s);
 653        wt_status_print_unmerged(s);
 654        wt_status_print_changed(s);
 655        if (s->submodule_summary &&
 656            (!s->ignore_submodule_arg ||
 657             strcmp(s->ignore_submodule_arg, "all"))) {
 658                wt_status_print_submodule_summary(s, 0);  /* staged */
 659                wt_status_print_submodule_summary(s, 1);  /* unstaged */
 660        }
 661        if (s->show_untracked_files) {
 662                wt_status_print_other(s, &s->untracked, "Untracked", "add");
 663                if (s->show_ignored_files)
 664                        wt_status_print_other(s, &s->ignored, "Ignored", "add -f");
 665        } else if (s->commitable)
 666                fprintf(s->fp, "# Untracked files not listed%s\n",
 667                        advice_status_hints
 668                        ? " (use -u option to show untracked files)" : "");
 669
 670        if (s->verbose)
 671                wt_status_print_verbose(s);
 672        if (!s->commitable) {
 673                if (s->amend)
 674                        fprintf(s->fp, "# No changes\n");
 675                else if (s->nowarn)
 676                        ; /* nothing */
 677                else if (s->workdir_dirty)
 678                        printf("no changes added to commit%s\n",
 679                                advice_status_hints
 680                                ? " (use \"git add\" and/or \"git commit -a\")" : "");
 681                else if (s->untracked.nr)
 682                        printf("nothing added to commit but untracked files present%s\n",
 683                                advice_status_hints
 684                                ? " (use \"git add\" to track)" : "");
 685                else if (s->is_initial)
 686                        printf("nothing to commit%s\n", advice_status_hints
 687                                ? " (create/copy files and use \"git add\" to track)" : "");
 688                else if (!s->show_untracked_files)
 689                        printf("nothing to commit%s\n", advice_status_hints
 690                                ? " (use -u to show untracked files)" : "");
 691                else
 692                        printf("nothing to commit%s\n", advice_status_hints
 693                                ? " (working directory clean)" : "");
 694        }
 695}
 696
 697static void wt_shortstatus_unmerged(int null_termination, struct string_list_item *it,
 698                           struct wt_status *s)
 699{
 700        struct wt_status_change_data *d = it->util;
 701        const char *how = "??";
 702
 703        switch (d->stagemask) {
 704        case 1: how = "DD"; break; /* both deleted */
 705        case 2: how = "AU"; break; /* added by us */
 706        case 3: how = "UD"; break; /* deleted by them */
 707        case 4: how = "UA"; break; /* added by them */
 708        case 5: how = "DU"; break; /* deleted by us */
 709        case 6: how = "AA"; break; /* both added */
 710        case 7: how = "UU"; break; /* both modified */
 711        }
 712        color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
 713        if (null_termination) {
 714                fprintf(stdout, " %s%c", it->string, 0);
 715        } else {
 716                struct strbuf onebuf = STRBUF_INIT;
 717                const char *one;
 718                one = quote_path(it->string, -1, &onebuf, s->prefix);
 719                printf(" %s\n", one);
 720                strbuf_release(&onebuf);
 721        }
 722}
 723
 724static void wt_shortstatus_status(int null_termination, struct string_list_item *it,
 725                         struct wt_status *s)
 726{
 727        struct wt_status_change_data *d = it->util;
 728
 729        if (d->index_status)
 730                color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
 731        else
 732                putchar(' ');
 733        if (d->worktree_status)
 734                color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
 735        else
 736                putchar(' ');
 737        putchar(' ');
 738        if (null_termination) {
 739                fprintf(stdout, "%s%c", it->string, 0);
 740                if (d->head_path)
 741                        fprintf(stdout, "%s%c", d->head_path, 0);
 742        } else {
 743                struct strbuf onebuf = STRBUF_INIT;
 744                const char *one;
 745                if (d->head_path) {
 746                        one = quote_path(d->head_path, -1, &onebuf, s->prefix);
 747                        printf("%s -> ", one);
 748                        strbuf_release(&onebuf);
 749                }
 750                one = quote_path(it->string, -1, &onebuf, s->prefix);
 751                printf("%s\n", one);
 752                strbuf_release(&onebuf);
 753        }
 754}
 755
 756static void wt_shortstatus_other(int null_termination, struct string_list_item *it,
 757                                 struct wt_status *s, const char *sign)
 758{
 759        if (null_termination) {
 760                fprintf(stdout, "%s %s%c", sign, it->string, 0);
 761        } else {
 762                struct strbuf onebuf = STRBUF_INIT;
 763                const char *one;
 764                one = quote_path(it->string, -1, &onebuf, s->prefix);
 765                color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
 766                printf(" %s\n", one);
 767                strbuf_release(&onebuf);
 768        }
 769}
 770
 771static void wt_shortstatus_print_tracking(struct wt_status *s)
 772{
 773        struct branch *branch;
 774        const char *header_color = color(WT_STATUS_HEADER, s);
 775        const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
 776        const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
 777
 778        const char *base;
 779        const char *branch_name;
 780        int num_ours, num_theirs;
 781
 782        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
 783
 784        if (!s->branch)
 785                return;
 786        branch_name = s->branch;
 787
 788        if (!prefixcmp(branch_name, "refs/heads/"))
 789                branch_name += 11;
 790        else if (!strcmp(branch_name, "HEAD")) {
 791                branch_name = "HEAD (no branch)";
 792                branch_color_local = color(WT_STATUS_NOBRANCH, s);
 793        }
 794
 795        branch = branch_get(s->branch + 11);
 796        if (s->is_initial)
 797                color_fprintf(s->fp, header_color, "Initial commit on ");
 798        if (!stat_tracking_info(branch, &num_ours, &num_theirs)) {
 799                color_fprintf_ln(s->fp, branch_color_local,
 800                        "%s", branch_name);
 801                return;
 802        }
 803
 804        base = branch->merge[0]->dst;
 805        base = shorten_unambiguous_ref(base, 0);
 806        color_fprintf(s->fp, branch_color_local, "%s", branch_name);
 807        color_fprintf(s->fp, header_color, "...");
 808        color_fprintf(s->fp, branch_color_remote, "%s", base);
 809
 810        color_fprintf(s->fp, header_color, " [");
 811        if (!num_ours) {
 812                color_fprintf(s->fp, header_color, "behind ");
 813                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 814        } else if (!num_theirs) {
 815                color_fprintf(s->fp, header_color, "ahead ");
 816                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 817        } else {
 818                color_fprintf(s->fp, header_color, "ahead ");
 819                color_fprintf(s->fp, branch_color_local, "%d", num_ours);
 820                color_fprintf(s->fp, header_color, ", behind ");
 821                color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
 822        }
 823
 824        color_fprintf_ln(s->fp, header_color, "]");
 825}
 826
 827void wt_shortstatus_print(struct wt_status *s, int null_termination, int show_branch)
 828{
 829        int i;
 830
 831        if (show_branch)
 832                wt_shortstatus_print_tracking(s);
 833
 834        for (i = 0; i < s->change.nr; i++) {
 835                struct wt_status_change_data *d;
 836                struct string_list_item *it;
 837
 838                it = &(s->change.items[i]);
 839                d = it->util;
 840                if (d->stagemask)
 841                        wt_shortstatus_unmerged(null_termination, it, s);
 842                else
 843                        wt_shortstatus_status(null_termination, it, s);
 844        }
 845        for (i = 0; i < s->untracked.nr; i++) {
 846                struct string_list_item *it;
 847
 848                it = &(s->untracked.items[i]);
 849                wt_shortstatus_other(null_termination, it, s, "??");
 850        }
 851        for (i = 0; i < s->ignored.nr; i++) {
 852                struct string_list_item *it;
 853
 854                it = &(s->ignored.items[i]);
 855                wt_shortstatus_other(null_termination, it, s, "!!");
 856        }
 857}
 858
 859void wt_porcelain_print(struct wt_status *s, int null_termination)
 860{
 861        s->use_color = 0;
 862        s->relative_paths = 0;
 863        s->prefix = NULL;
 864        wt_shortstatus_print(s, null_termination, 0);
 865}