Andrew's git / gitweb.git / wt-status.c
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wt-status.con commit t9700-perl-git.sh: Fix a test failure on Cygwin (81f4026)
   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
  13static char default_wt_status_colors[][COLOR_MAXLEN] = {
  14        GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
  15        GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
  16        GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
  17        GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
  18        GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
  19        GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
  20};
  21
  22static const char *color(int slot, struct wt_status *s)
  23{
  24        return s->use_color > 0 ? s->color_palette[slot] : "";
  25}
  26
  27void wt_status_prepare(struct wt_status *s)
  28{
  29        unsigned char sha1[20];
  30        const char *head;
  31
  32        memset(s, 0, sizeof(*s));
  33        memcpy(s->color_palette, default_wt_status_colors,
  34               sizeof(default_wt_status_colors));
  35        s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
  36        s->use_color = -1;
  37        s->relative_paths = 1;
  38        head = resolve_ref("HEAD", sha1, 0, NULL);
  39        s->branch = head ? xstrdup(head) : NULL;
  40        s->reference = "HEAD";
  41        s->fp = stdout;
  42        s->index_file = get_index_file();
  43        s->change.strdup_strings = 1;
  44        s->untracked.strdup_strings = 1;
  45}
  46
  47static void wt_status_print_unmerged_header(struct wt_status *s)
  48{
  49        const char *c = color(WT_STATUS_HEADER, s);
  50        color_fprintf_ln(s->fp, c, "# Unmerged paths:");
  51        if (!advice_status_hints)
  52                return;
  53        if (!s->is_initial)
  54                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  55        else
  56                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  57        color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to mark resolution)");
  58        color_fprintf_ln(s->fp, c, "#");
  59}
  60
  61static void wt_status_print_cached_header(struct wt_status *s)
  62{
  63        const char *c = color(WT_STATUS_HEADER, s);
  64        color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  65        if (!advice_status_hints)
  66                return;
  67        if (!s->is_initial) {
  68                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  69        } else {
  70                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  71        }
  72        color_fprintf_ln(s->fp, c, "#");
  73}
  74
  75static void wt_status_print_dirty_header(struct wt_status *s,
  76                                         int has_deleted)
  77{
  78        const char *c = color(WT_STATUS_HEADER, s);
  79        color_fprintf_ln(s->fp, c, "# Changed but not updated:");
  80        if (!advice_status_hints)
  81                return;
  82        if (!has_deleted)
  83                color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
  84        else
  85                color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
  86        color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
  87        color_fprintf_ln(s->fp, c, "#");
  88}
  89
  90static void wt_status_print_untracked_header(struct wt_status *s)
  91{
  92        const char *c = color(WT_STATUS_HEADER, s);
  93        color_fprintf_ln(s->fp, c, "# Untracked files:");
  94        if (!advice_status_hints)
  95                return;
  96        color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to include in what will be committed)");
  97        color_fprintf_ln(s->fp, c, "#");
  98}
  99
 100static void wt_status_print_trailer(struct wt_status *s)
 101{
 102        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 103}
 104
 105#define quote_path quote_path_relative
 106
 107static void wt_status_print_unmerged_data(struct wt_status *s,
 108                                          struct string_list_item *it)
 109{
 110        const char *c = color(WT_STATUS_UNMERGED, s);
 111        struct wt_status_change_data *d = it->util;
 112        struct strbuf onebuf = STRBUF_INIT;
 113        const char *one, *how = "bug";
 114
 115        one = quote_path(it->string, -1, &onebuf, s->prefix);
 116        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 117        switch (d->stagemask) {
 118        case 1: how = "both deleted:"; break;
 119        case 2: how = "added by us:"; break;
 120        case 3: how = "deleted by them:"; break;
 121        case 4: how = "added by them:"; break;
 122        case 5: how = "deleted by us:"; break;
 123        case 6: how = "both added:"; break;
 124        case 7: how = "both modified:"; break;
 125        }
 126        color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 127        strbuf_release(&onebuf);
 128}
 129
 130static void wt_status_print_change_data(struct wt_status *s,
 131                                        int change_type,
 132                                        struct string_list_item *it)
 133{
 134        struct wt_status_change_data *d = it->util;
 135        const char *c = color(change_type, s);
 136        int status = status;
 137        char *one_name;
 138        char *two_name;
 139        const char *one, *two;
 140        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 141
 142        one_name = two_name = it->string;
 143        switch (change_type) {
 144        case WT_STATUS_UPDATED:
 145                status = d->index_status;
 146                if (d->head_path)
 147                        one_name = d->head_path;
 148                break;
 149        case WT_STATUS_CHANGED:
 150                status = d->worktree_status;
 151                break;
 152        }
 153
 154        one = quote_path(one_name, -1, &onebuf, s->prefix);
 155        two = quote_path(two_name, -1, &twobuf, s->prefix);
 156
 157        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 158        switch (status) {
 159        case DIFF_STATUS_ADDED:
 160                color_fprintf(s->fp, c, "new file:   %s", one);
 161                break;
 162        case DIFF_STATUS_COPIED:
 163                color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 164                break;
 165        case DIFF_STATUS_DELETED:
 166                color_fprintf(s->fp, c, "deleted:    %s", one);
 167                break;
 168        case DIFF_STATUS_MODIFIED:
 169                color_fprintf(s->fp, c, "modified:   %s", one);
 170                break;
 171        case DIFF_STATUS_RENAMED:
 172                color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 173                break;
 174        case DIFF_STATUS_TYPE_CHANGED:
 175                color_fprintf(s->fp, c, "typechange: %s", one);
 176                break;
 177        case DIFF_STATUS_UNKNOWN:
 178                color_fprintf(s->fp, c, "unknown:    %s", one);
 179                break;
 180        case DIFF_STATUS_UNMERGED:
 181                color_fprintf(s->fp, c, "unmerged:   %s", one);
 182                break;
 183        default:
 184                die("bug: unhandled diff status %c", status);
 185        }
 186        fprintf(s->fp, "\n");
 187        strbuf_release(&onebuf);
 188        strbuf_release(&twobuf);
 189}
 190
 191static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 192                                         struct diff_options *options,
 193                                         void *data)
 194{
 195        struct wt_status *s = data;
 196        int i;
 197
 198        if (!q->nr)
 199                return;
 200        s->workdir_dirty = 1;
 201        for (i = 0; i < q->nr; i++) {
 202                struct diff_filepair *p;
 203                struct string_list_item *it;
 204                struct wt_status_change_data *d;
 205
 206                p = q->queue[i];
 207                it = string_list_insert(p->one->path, &s->change);
 208                d = it->util;
 209                if (!d) {
 210                        d = xcalloc(1, sizeof(*d));
 211                        it->util = d;
 212                }
 213                if (!d->worktree_status)
 214                        d->worktree_status = p->status;
 215        }
 216}
 217
 218static int unmerged_mask(const char *path)
 219{
 220        int pos, mask;
 221        struct cache_entry *ce;
 222
 223        pos = cache_name_pos(path, strlen(path));
 224        if (0 <= pos)
 225                return 0;
 226
 227        mask = 0;
 228        pos = -pos-1;
 229        while (pos < active_nr) {
 230                ce = active_cache[pos++];
 231                if (strcmp(ce->name, path) || !ce_stage(ce))
 232                        break;
 233                mask |= (1 << (ce_stage(ce) - 1));
 234        }
 235        return mask;
 236}
 237
 238static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 239                                         struct diff_options *options,
 240                                         void *data)
 241{
 242        struct wt_status *s = data;
 243        int i;
 244
 245        for (i = 0; i < q->nr; i++) {
 246                struct diff_filepair *p;
 247                struct string_list_item *it;
 248                struct wt_status_change_data *d;
 249
 250                p = q->queue[i];
 251                it = string_list_insert(p->two->path, &s->change);
 252                d = it->util;
 253                if (!d) {
 254                        d = xcalloc(1, sizeof(*d));
 255                        it->util = d;
 256                }
 257                if (!d->index_status)
 258                        d->index_status = p->status;
 259                switch (p->status) {
 260                case DIFF_STATUS_COPIED:
 261                case DIFF_STATUS_RENAMED:
 262                        d->head_path = xstrdup(p->one->path);
 263                        break;
 264                case DIFF_STATUS_UNMERGED:
 265                        d->stagemask = unmerged_mask(p->two->path);
 266                        break;
 267                }
 268        }
 269}
 270
 271static void wt_status_collect_changes_worktree(struct wt_status *s)
 272{
 273        struct rev_info rev;
 274
 275        init_revisions(&rev, NULL);
 276        setup_revisions(0, NULL, &rev, NULL);
 277        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 278        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 279        rev.diffopt.format_callback_data = s;
 280        run_diff_files(&rev, 0);
 281}
 282
 283static void wt_status_collect_changes_index(struct wt_status *s)
 284{
 285        struct rev_info rev;
 286
 287        init_revisions(&rev, NULL);
 288        setup_revisions(0, NULL, &rev,
 289                s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 290        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 291        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 292        rev.diffopt.format_callback_data = s;
 293        rev.diffopt.detect_rename = 1;
 294        rev.diffopt.rename_limit = 200;
 295        rev.diffopt.break_opt = 0;
 296        run_diff_index(&rev, 1);
 297}
 298
 299static void wt_status_collect_changes_initial(struct wt_status *s)
 300{
 301        int i;
 302
 303        for (i = 0; i < active_nr; i++) {
 304                struct string_list_item *it;
 305                struct wt_status_change_data *d;
 306                struct cache_entry *ce = active_cache[i];
 307
 308                it = string_list_insert(ce->name, &s->change);
 309                d = it->util;
 310                if (!d) {
 311                        d = xcalloc(1, sizeof(*d));
 312                        it->util = d;
 313                }
 314                if (ce_stage(ce)) {
 315                        d->index_status = DIFF_STATUS_UNMERGED;
 316                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 317                }
 318                else
 319                        d->index_status = DIFF_STATUS_ADDED;
 320        }
 321}
 322
 323static void wt_status_collect_untracked(struct wt_status *s)
 324{
 325        int i;
 326        struct dir_struct dir;
 327
 328        if (!s->show_untracked_files)
 329                return;
 330        memset(&dir, 0, sizeof(dir));
 331        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 332                dir.flags |=
 333                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 334        setup_standard_excludes(&dir);
 335
 336        fill_directory(&dir, NULL);
 337        for (i = 0; i < dir.nr; i++) {
 338                struct dir_entry *ent = dir.entries[i];
 339                if (!cache_name_is_other(ent->name, ent->len))
 340                        continue;
 341                s->workdir_untracked = 1;
 342                string_list_insert(ent->name, &s->untracked);
 343        }
 344}
 345
 346void wt_status_collect(struct wt_status *s)
 347{
 348        wt_status_collect_changes_worktree(s);
 349
 350        if (s->is_initial)
 351                wt_status_collect_changes_initial(s);
 352        else
 353                wt_status_collect_changes_index(s);
 354        wt_status_collect_untracked(s);
 355}
 356
 357static void wt_status_print_unmerged(struct wt_status *s)
 358{
 359        int shown_header = 0;
 360        int i;
 361
 362        for (i = 0; i < s->change.nr; i++) {
 363                struct wt_status_change_data *d;
 364                struct string_list_item *it;
 365                it = &(s->change.items[i]);
 366                d = it->util;
 367                if (!d->stagemask)
 368                        continue;
 369                if (!shown_header) {
 370                        wt_status_print_unmerged_header(s);
 371                        shown_header = 1;
 372                }
 373                wt_status_print_unmerged_data(s, it);
 374        }
 375        if (shown_header)
 376                wt_status_print_trailer(s);
 377
 378}
 379
 380static void wt_status_print_updated(struct wt_status *s)
 381{
 382        int shown_header = 0;
 383        int i;
 384
 385        for (i = 0; i < s->change.nr; i++) {
 386                struct wt_status_change_data *d;
 387                struct string_list_item *it;
 388                it = &(s->change.items[i]);
 389                d = it->util;
 390                if (!d->index_status ||
 391                    d->index_status == DIFF_STATUS_UNMERGED)
 392                        continue;
 393                if (!shown_header) {
 394                        wt_status_print_cached_header(s);
 395                        s->commitable = 1;
 396                        shown_header = 1;
 397                }
 398                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 399        }
 400        if (shown_header)
 401                wt_status_print_trailer(s);
 402}
 403
 404/*
 405 * -1 : has delete
 406 *  0 : no change
 407 *  1 : some change but no delete
 408 */
 409static int wt_status_check_worktree_changes(struct wt_status *s)
 410{
 411        int i;
 412        int changes = 0;
 413
 414        for (i = 0; i < s->change.nr; i++) {
 415                struct wt_status_change_data *d;
 416                d = s->change.items[i].util;
 417                if (!d->worktree_status ||
 418                    d->worktree_status == DIFF_STATUS_UNMERGED)
 419                        continue;
 420                changes = 1;
 421                if (d->worktree_status == DIFF_STATUS_DELETED)
 422                        return -1;
 423        }
 424        return changes;
 425}
 426
 427static void wt_status_print_changed(struct wt_status *s)
 428{
 429        int i;
 430        int worktree_changes = wt_status_check_worktree_changes(s);
 431
 432        if (!worktree_changes)
 433                return;
 434
 435        wt_status_print_dirty_header(s, worktree_changes < 0);
 436
 437        for (i = 0; i < s->change.nr; i++) {
 438                struct wt_status_change_data *d;
 439                struct string_list_item *it;
 440                it = &(s->change.items[i]);
 441                d = it->util;
 442                if (!d->worktree_status ||
 443                    d->worktree_status == DIFF_STATUS_UNMERGED)
 444                        continue;
 445                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 446        }
 447        wt_status_print_trailer(s);
 448}
 449
 450static void wt_status_print_submodule_summary(struct wt_status *s)
 451{
 452        struct child_process sm_summary;
 453        char summary_limit[64];
 454        char index[PATH_MAX];
 455        const char *env[] = { index, NULL };
 456        const char *argv[] = {
 457                "submodule",
 458                "summary",
 459                "--cached",
 460                "--for-status",
 461                "--summary-limit",
 462                summary_limit,
 463                s->amend ? "HEAD^" : "HEAD",
 464                NULL
 465        };
 466
 467        sprintf(summary_limit, "%d", s->submodule_summary);
 468        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 469
 470        memset(&sm_summary, 0, sizeof(sm_summary));
 471        sm_summary.argv = argv;
 472        sm_summary.env = env;
 473        sm_summary.git_cmd = 1;
 474        sm_summary.no_stdin = 1;
 475        fflush(s->fp);
 476        sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 477        run_command(&sm_summary);
 478}
 479
 480static void wt_status_print_untracked(struct wt_status *s)
 481{
 482        int i;
 483        struct strbuf buf = STRBUF_INIT;
 484
 485        if (!s->untracked.nr)
 486                return;
 487
 488        wt_status_print_untracked_header(s);
 489        for (i = 0; i < s->untracked.nr; i++) {
 490                struct string_list_item *it;
 491                it = &(s->untracked.items[i]);
 492                color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 493                color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 494                                 quote_path(it->string, strlen(it->string),
 495                                            &buf, s->prefix));
 496        }
 497        strbuf_release(&buf);
 498}
 499
 500static void wt_status_print_verbose(struct wt_status *s)
 501{
 502        struct rev_info rev;
 503
 504        init_revisions(&rev, NULL);
 505        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 506        setup_revisions(0, NULL, &rev,
 507                s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 508        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 509        rev.diffopt.detect_rename = 1;
 510        rev.diffopt.file = s->fp;
 511        rev.diffopt.close_file = 0;
 512        /*
 513         * If we're not going to stdout, then we definitely don't
 514         * want color, since we are going to the commit message
 515         * file (and even the "auto" setting won't work, since it
 516         * will have checked isatty on stdout).
 517         */
 518        if (s->fp != stdout)
 519                DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 520        run_diff_index(&rev, 1);
 521}
 522
 523static void wt_status_print_tracking(struct wt_status *s)
 524{
 525        struct strbuf sb = STRBUF_INIT;
 526        const char *cp, *ep;
 527        struct branch *branch;
 528
 529        assert(s->branch && !s->is_initial);
 530        if (prefixcmp(s->branch, "refs/heads/"))
 531                return;
 532        branch = branch_get(s->branch + 11);
 533        if (!format_tracking_info(branch, &sb))
 534                return;
 535
 536        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 537                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 538                                 "# %.*s", (int)(ep - cp), cp);
 539        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 540}
 541
 542void wt_status_print(struct wt_status *s)
 543{
 544        unsigned char sha1[20];
 545        const char *branch_color = color(WT_STATUS_HEADER, s);
 546
 547        s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 548        if (s->branch) {
 549                const char *on_what = "On branch ";
 550                const char *branch_name = s->branch;
 551                if (!prefixcmp(branch_name, "refs/heads/"))
 552                        branch_name += 11;
 553                else if (!strcmp(branch_name, "HEAD")) {
 554                        branch_name = "";
 555                        branch_color = color(WT_STATUS_NOBRANCH, s);
 556                        on_what = "Not currently on any branch.";
 557                }
 558                color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 559                color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 560                if (!s->is_initial)
 561                        wt_status_print_tracking(s);
 562        }
 563
 564        wt_status_collect(s);
 565
 566        if (s->is_initial) {
 567                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 568                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 569                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 570        }
 571
 572        wt_status_print_updated(s);
 573        wt_status_print_unmerged(s);
 574        wt_status_print_changed(s);
 575        if (s->submodule_summary)
 576                wt_status_print_submodule_summary(s);
 577        if (s->show_untracked_files)
 578                wt_status_print_untracked(s);
 579        else if (s->commitable)
 580                 fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 581
 582        if (s->verbose)
 583                wt_status_print_verbose(s);
 584        if (!s->commitable) {
 585                if (s->amend)
 586                        fprintf(s->fp, "# No changes\n");
 587                else if (s->nowarn)
 588                        ; /* nothing */
 589                else if (s->workdir_dirty)
 590                        printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 591                else if (s->untracked.nr)
 592                        printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 593                else if (s->is_initial)
 594                        printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 595                else if (!s->show_untracked_files)
 596                        printf("nothing to commit (use -u to show untracked files)\n");
 597                else
 598                        printf("nothing to commit (working directory clean)\n");
 599        }
 600}