Andrew's git / gitweb.git / wt-status.c
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wt-status.con commit Merge branch 'lt/approxidate' (554555a)
   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 (!s->is_initial)
  52                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  53        else
  54                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  55        color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to mark resolution)");
  56        color_fprintf_ln(s->fp, c, "#");
  57}
  58
  59static void wt_status_print_cached_header(struct wt_status *s)
  60{
  61        const char *c = color(WT_STATUS_HEADER, s);
  62        color_fprintf_ln(s->fp, c, "# Changes to be committed:");
  63        if (!s->is_initial) {
  64                color_fprintf_ln(s->fp, c, "#   (use \"git reset %s <file>...\" to unstage)", s->reference);
  65        } else {
  66                color_fprintf_ln(s->fp, c, "#   (use \"git rm --cached <file>...\" to unstage)");
  67        }
  68        color_fprintf_ln(s->fp, c, "#");
  69}
  70
  71static void wt_status_print_dirty_header(struct wt_status *s,
  72                                         int has_deleted)
  73{
  74        const char *c = color(WT_STATUS_HEADER, s);
  75        color_fprintf_ln(s->fp, c, "# Changed but not updated:");
  76        if (!has_deleted)
  77                color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to update what will be committed)");
  78        else
  79                color_fprintf_ln(s->fp, c, "#   (use \"git add/rm <file>...\" to update what will be committed)");
  80        color_fprintf_ln(s->fp, c, "#   (use \"git checkout -- <file>...\" to discard changes in working directory)");
  81        color_fprintf_ln(s->fp, c, "#");
  82}
  83
  84static void wt_status_print_untracked_header(struct wt_status *s)
  85{
  86        const char *c = color(WT_STATUS_HEADER, s);
  87        color_fprintf_ln(s->fp, c, "# Untracked files:");
  88        color_fprintf_ln(s->fp, c, "#   (use \"git add <file>...\" to include in what will be committed)");
  89        color_fprintf_ln(s->fp, c, "#");
  90}
  91
  92static void wt_status_print_trailer(struct wt_status *s)
  93{
  94        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
  95}
  96
  97#define quote_path quote_path_relative
  98
  99static void wt_status_print_unmerged_data(struct wt_status *s,
 100                                          struct string_list_item *it)
 101{
 102        const char *c = color(WT_STATUS_UNMERGED, s);
 103        struct wt_status_change_data *d = it->util;
 104        struct strbuf onebuf = STRBUF_INIT;
 105        const char *one, *how = "bug";
 106
 107        one = quote_path(it->string, -1, &onebuf, s->prefix);
 108        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 109        switch (d->stagemask) {
 110        case 1: how = "both deleted:"; break;
 111        case 2: how = "added by us:"; break;
 112        case 3: how = "deleted by them:"; break;
 113        case 4: how = "added by them:"; break;
 114        case 5: how = "deleted by us:"; break;
 115        case 6: how = "both added:"; break;
 116        case 7: how = "both modified:"; break;
 117        }
 118        color_fprintf(s->fp, c, "%-20s%s\n", how, one);
 119        strbuf_release(&onebuf);
 120}
 121
 122static void wt_status_print_change_data(struct wt_status *s,
 123                                        int change_type,
 124                                        struct string_list_item *it)
 125{
 126        struct wt_status_change_data *d = it->util;
 127        const char *c = color(change_type, s);
 128        int status = status;
 129        char *one_name;
 130        char *two_name;
 131        const char *one, *two;
 132        struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
 133
 134        one_name = two_name = it->string;
 135        switch (change_type) {
 136        case WT_STATUS_UPDATED:
 137                status = d->index_status;
 138                if (d->head_path)
 139                        one_name = d->head_path;
 140                break;
 141        case WT_STATUS_CHANGED:
 142                status = d->worktree_status;
 143                break;
 144        }
 145
 146        one = quote_path(one_name, -1, &onebuf, s->prefix);
 147        two = quote_path(two_name, -1, &twobuf, s->prefix);
 148
 149        color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 150        switch (status) {
 151        case DIFF_STATUS_ADDED:
 152                color_fprintf(s->fp, c, "new file:   %s", one);
 153                break;
 154        case DIFF_STATUS_COPIED:
 155                color_fprintf(s->fp, c, "copied:     %s -> %s", one, two);
 156                break;
 157        case DIFF_STATUS_DELETED:
 158                color_fprintf(s->fp, c, "deleted:    %s", one);
 159                break;
 160        case DIFF_STATUS_MODIFIED:
 161                color_fprintf(s->fp, c, "modified:   %s", one);
 162                break;
 163        case DIFF_STATUS_RENAMED:
 164                color_fprintf(s->fp, c, "renamed:    %s -> %s", one, two);
 165                break;
 166        case DIFF_STATUS_TYPE_CHANGED:
 167                color_fprintf(s->fp, c, "typechange: %s", one);
 168                break;
 169        case DIFF_STATUS_UNKNOWN:
 170                color_fprintf(s->fp, c, "unknown:    %s", one);
 171                break;
 172        case DIFF_STATUS_UNMERGED:
 173                color_fprintf(s->fp, c, "unmerged:   %s", one);
 174                break;
 175        default:
 176                die("bug: unhandled diff status %c", status);
 177        }
 178        fprintf(s->fp, "\n");
 179        strbuf_release(&onebuf);
 180        strbuf_release(&twobuf);
 181}
 182
 183static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
 184                                         struct diff_options *options,
 185                                         void *data)
 186{
 187        struct wt_status *s = data;
 188        int i;
 189
 190        if (!q->nr)
 191                return;
 192        s->workdir_dirty = 1;
 193        for (i = 0; i < q->nr; i++) {
 194                struct diff_filepair *p;
 195                struct string_list_item *it;
 196                struct wt_status_change_data *d;
 197
 198                p = q->queue[i];
 199                it = string_list_insert(p->one->path, &s->change);
 200                d = it->util;
 201                if (!d) {
 202                        d = xcalloc(1, sizeof(*d));
 203                        it->util = d;
 204                }
 205                if (!d->worktree_status)
 206                        d->worktree_status = p->status;
 207        }
 208}
 209
 210static int unmerged_mask(const char *path)
 211{
 212        int pos, mask;
 213        struct cache_entry *ce;
 214
 215        pos = cache_name_pos(path, strlen(path));
 216        if (0 <= pos)
 217                return 0;
 218
 219        mask = 0;
 220        pos = -pos-1;
 221        while (pos < active_nr) {
 222                ce = active_cache[pos++];
 223                if (strcmp(ce->name, path) || !ce_stage(ce))
 224                        break;
 225                mask |= (1 << (ce_stage(ce) - 1));
 226        }
 227        return mask;
 228}
 229
 230static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
 231                                         struct diff_options *options,
 232                                         void *data)
 233{
 234        struct wt_status *s = data;
 235        int i;
 236
 237        for (i = 0; i < q->nr; i++) {
 238                struct diff_filepair *p;
 239                struct string_list_item *it;
 240                struct wt_status_change_data *d;
 241
 242                p = q->queue[i];
 243                it = string_list_insert(p->two->path, &s->change);
 244                d = it->util;
 245                if (!d) {
 246                        d = xcalloc(1, sizeof(*d));
 247                        it->util = d;
 248                }
 249                if (!d->index_status)
 250                        d->index_status = p->status;
 251                switch (p->status) {
 252                case DIFF_STATUS_COPIED:
 253                case DIFF_STATUS_RENAMED:
 254                        d->head_path = xstrdup(p->one->path);
 255                        break;
 256                case DIFF_STATUS_UNMERGED:
 257                        d->stagemask = unmerged_mask(p->two->path);
 258                        break;
 259                }
 260        }
 261}
 262
 263static void wt_status_collect_changes_worktree(struct wt_status *s)
 264{
 265        struct rev_info rev;
 266
 267        init_revisions(&rev, NULL);
 268        setup_revisions(0, NULL, &rev, NULL);
 269        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 270        rev.diffopt.format_callback = wt_status_collect_changed_cb;
 271        rev.diffopt.format_callback_data = s;
 272        run_diff_files(&rev, 0);
 273}
 274
 275static void wt_status_collect_changes_index(struct wt_status *s)
 276{
 277        struct rev_info rev;
 278
 279        init_revisions(&rev, NULL);
 280        setup_revisions(0, NULL, &rev,
 281                s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 282        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 283        rev.diffopt.format_callback = wt_status_collect_updated_cb;
 284        rev.diffopt.format_callback_data = s;
 285        rev.diffopt.detect_rename = 1;
 286        rev.diffopt.rename_limit = 200;
 287        rev.diffopt.break_opt = 0;
 288        run_diff_index(&rev, 1);
 289}
 290
 291static void wt_status_collect_changes_initial(struct wt_status *s)
 292{
 293        int i;
 294
 295        for (i = 0; i < active_nr; i++) {
 296                struct string_list_item *it;
 297                struct wt_status_change_data *d;
 298                struct cache_entry *ce = active_cache[i];
 299
 300                it = string_list_insert(ce->name, &s->change);
 301                d = it->util;
 302                if (!d) {
 303                        d = xcalloc(1, sizeof(*d));
 304                        it->util = d;
 305                }
 306                if (ce_stage(ce)) {
 307                        d->index_status = DIFF_STATUS_UNMERGED;
 308                        d->stagemask |= (1 << (ce_stage(ce) - 1));
 309                }
 310                else
 311                        d->index_status = DIFF_STATUS_ADDED;
 312        }
 313}
 314
 315static void wt_status_collect_untracked(struct wt_status *s)
 316{
 317        int i;
 318        struct dir_struct dir;
 319
 320        if (!s->show_untracked_files)
 321                return;
 322        memset(&dir, 0, sizeof(dir));
 323        if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
 324                dir.flags |=
 325                        DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
 326        setup_standard_excludes(&dir);
 327
 328        fill_directory(&dir, NULL);
 329        for(i = 0; i < dir.nr; i++) {
 330                struct dir_entry *ent = dir.entries[i];
 331                if (!cache_name_is_other(ent->name, ent->len))
 332                        continue;
 333                s->workdir_untracked = 1;
 334                string_list_insert(ent->name, &s->untracked);
 335        }
 336}
 337
 338void wt_status_collect(struct wt_status *s)
 339{
 340        wt_status_collect_changes_worktree(s);
 341
 342        if (s->is_initial)
 343                wt_status_collect_changes_initial(s);
 344        else
 345                wt_status_collect_changes_index(s);
 346        wt_status_collect_untracked(s);
 347}
 348
 349static void wt_status_print_unmerged(struct wt_status *s)
 350{
 351        int shown_header = 0;
 352        int i;
 353
 354        for (i = 0; i < s->change.nr; i++) {
 355                struct wt_status_change_data *d;
 356                struct string_list_item *it;
 357                it = &(s->change.items[i]);
 358                d = it->util;
 359                if (!d->stagemask)
 360                        continue;
 361                if (!shown_header) {
 362                        wt_status_print_unmerged_header(s);
 363                        shown_header = 1;
 364                }
 365                wt_status_print_unmerged_data(s, it);
 366        }
 367        if (shown_header)
 368                wt_status_print_trailer(s);
 369
 370}
 371
 372static void wt_status_print_updated(struct wt_status *s)
 373{
 374        int shown_header = 0;
 375        int i;
 376
 377        for (i = 0; i < s->change.nr; i++) {
 378                struct wt_status_change_data *d;
 379                struct string_list_item *it;
 380                it = &(s->change.items[i]);
 381                d = it->util;
 382                if (!d->index_status ||
 383                    d->index_status == DIFF_STATUS_UNMERGED)
 384                        continue;
 385                if (!shown_header) {
 386                        wt_status_print_cached_header(s);
 387                        s->commitable = 1;
 388                        shown_header = 1;
 389                }
 390                wt_status_print_change_data(s, WT_STATUS_UPDATED, it);
 391        }
 392        if (shown_header)
 393                wt_status_print_trailer(s);
 394}
 395
 396/*
 397 * -1 : has delete
 398 *  0 : no change
 399 *  1 : some change but no delete
 400 */
 401static int wt_status_check_worktree_changes(struct wt_status *s)
 402{
 403        int i;
 404        int changes = 0;
 405
 406        for (i = 0; i < s->change.nr; i++) {
 407                struct wt_status_change_data *d;
 408                d = s->change.items[i].util;
 409                if (!d->worktree_status ||
 410                    d->worktree_status == DIFF_STATUS_UNMERGED)
 411                        continue;
 412                changes = 1;
 413                if (d->worktree_status == DIFF_STATUS_DELETED)
 414                        return -1;
 415        }
 416        return changes;
 417}
 418
 419static void wt_status_print_changed(struct wt_status *s)
 420{
 421        int i;
 422        int worktree_changes = wt_status_check_worktree_changes(s);
 423
 424        if (!worktree_changes)
 425                return;
 426
 427        wt_status_print_dirty_header(s, worktree_changes < 0);
 428
 429        for (i = 0; i < s->change.nr; i++) {
 430                struct wt_status_change_data *d;
 431                struct string_list_item *it;
 432                it = &(s->change.items[i]);
 433                d = it->util;
 434                if (!d->worktree_status ||
 435                    d->worktree_status == DIFF_STATUS_UNMERGED)
 436                        continue;
 437                wt_status_print_change_data(s, WT_STATUS_CHANGED, it);
 438        }
 439        wt_status_print_trailer(s);
 440}
 441
 442static void wt_status_print_submodule_summary(struct wt_status *s)
 443{
 444        struct child_process sm_summary;
 445        char summary_limit[64];
 446        char index[PATH_MAX];
 447        const char *env[] = { index, NULL };
 448        const char *argv[] = {
 449                "submodule",
 450                "summary",
 451                "--cached",
 452                "--for-status",
 453                "--summary-limit",
 454                summary_limit,
 455                s->amend ? "HEAD^" : "HEAD",
 456                NULL
 457        };
 458
 459        sprintf(summary_limit, "%d", s->submodule_summary);
 460        snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", s->index_file);
 461
 462        memset(&sm_summary, 0, sizeof(sm_summary));
 463        sm_summary.argv = argv;
 464        sm_summary.env = env;
 465        sm_summary.git_cmd = 1;
 466        sm_summary.no_stdin = 1;
 467        fflush(s->fp);
 468        sm_summary.out = dup(fileno(s->fp));    /* run_command closes it */
 469        run_command(&sm_summary);
 470}
 471
 472static void wt_status_print_untracked(struct wt_status *s)
 473{
 474        int i;
 475        struct strbuf buf = STRBUF_INIT;
 476
 477        if (!s->untracked.nr)
 478                return;
 479
 480        wt_status_print_untracked_header(s);
 481        for (i = 0; i < s->untracked.nr; i++) {
 482                struct string_list_item *it;
 483                it = &(s->untracked.items[i]);
 484                color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "#\t");
 485                color_fprintf_ln(s->fp, color(WT_STATUS_UNTRACKED, s), "%s",
 486                                 quote_path(it->string, strlen(it->string),
 487                                            &buf, s->prefix));
 488        }
 489        strbuf_release(&buf);
 490}
 491
 492static void wt_status_print_verbose(struct wt_status *s)
 493{
 494        struct rev_info rev;
 495
 496        init_revisions(&rev, NULL);
 497        DIFF_OPT_SET(&rev.diffopt, ALLOW_TEXTCONV);
 498        setup_revisions(0, NULL, &rev,
 499                s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference);
 500        rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
 501        rev.diffopt.detect_rename = 1;
 502        rev.diffopt.file = s->fp;
 503        rev.diffopt.close_file = 0;
 504        /*
 505         * If we're not going to stdout, then we definitely don't
 506         * want color, since we are going to the commit message
 507         * file (and even the "auto" setting won't work, since it
 508         * will have checked isatty on stdout).
 509         */
 510        if (s->fp != stdout)
 511                DIFF_OPT_CLR(&rev.diffopt, COLOR_DIFF);
 512        run_diff_index(&rev, 1);
 513}
 514
 515static void wt_status_print_tracking(struct wt_status *s)
 516{
 517        struct strbuf sb = STRBUF_INIT;
 518        const char *cp, *ep;
 519        struct branch *branch;
 520
 521        assert(s->branch && !s->is_initial);
 522        if (prefixcmp(s->branch, "refs/heads/"))
 523                return;
 524        branch = branch_get(s->branch + 11);
 525        if (!format_tracking_info(branch, &sb))
 526                return;
 527
 528        for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
 529                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
 530                                 "# %.*s", (int)(ep - cp), cp);
 531        color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 532}
 533
 534void wt_status_print(struct wt_status *s)
 535{
 536        unsigned char sha1[20];
 537        const char *branch_color = color(WT_STATUS_HEADER, s);
 538
 539        s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
 540        if (s->branch) {
 541                const char *on_what = "On branch ";
 542                const char *branch_name = s->branch;
 543                if (!prefixcmp(branch_name, "refs/heads/"))
 544                        branch_name += 11;
 545                else if (!strcmp(branch_name, "HEAD")) {
 546                        branch_name = "";
 547                        branch_color = color(WT_STATUS_NOBRANCH, s);
 548                        on_what = "Not currently on any branch.";
 549                }
 550                color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "# ");
 551                color_fprintf_ln(s->fp, branch_color, "%s%s", on_what, branch_name);
 552                if (!s->is_initial)
 553                        wt_status_print_tracking(s);
 554        }
 555
 556        wt_status_collect(s);
 557
 558        if (s->is_initial) {
 559                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 560                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "# Initial commit");
 561                color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "#");
 562        }
 563
 564        wt_status_print_unmerged(s);
 565        wt_status_print_updated(s);
 566        wt_status_print_changed(s);
 567        if (s->submodule_summary)
 568                wt_status_print_submodule_summary(s);
 569        if (s->show_untracked_files)
 570                wt_status_print_untracked(s);
 571        else if (s->commitable)
 572                 fprintf(s->fp, "# Untracked files not listed (use -u option to show untracked files)\n");
 573
 574        if (s->verbose)
 575                wt_status_print_verbose(s);
 576        if (!s->commitable) {
 577                if (s->amend)
 578                        fprintf(s->fp, "# No changes\n");
 579                else if (s->nowarn)
 580                        ; /* nothing */
 581                else if (s->workdir_dirty)
 582                        printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 583                else if (s->untracked.nr)
 584                        printf("nothing added to commit but untracked files present (use \"git add\" to track)\n");
 585                else if (s->is_initial)
 586                        printf("nothing to commit (create/copy files and use \"git add\" to track)\n");
 587                else if (!s->show_untracked_files)
 588                        printf("nothing to commit (use -u to show untracked files)\n");
 589                else
 590                        printf("nothing to commit (working directory clean)\n");
 591        }
 592}