Andrew's git - gitweb.git/blob

   1/*
   2 * "git add" builtin command
   3 *
   4 * Copyright (C) 2006 Linus Torvalds
   5 */
   6#include "cache.h"
   7#include "builtin.h"
   8#include "lockfile.h"
   9#include "dir.h"
  10#include "pathspec.h"
  11#include "exec_cmd.h"
  12#include "cache-tree.h"
  13#include "run-command.h"
  14#include "parse-options.h"
  15#include "diff.h"
  16#include "diffcore.h"
  17#include "revision.h"
  18#include "bulk-checkin.h"
  19#include "argv-array.h"
  20
  21static const char * const builtin_add_usage[] = {
  22        N_("git add [<options>] [--] <pathspec>..."),
  23        NULL
  24};
  25static int patch_interactive, add_interactive, edit_interactive;
  26static int take_worktree_changes;
  27
  28struct update_callback_data {
  29        int flags, force_mode;
  30        int add_errors;
  31};
  32
  33static int fix_unmerged_status(struct diff_filepair *p,
  34                               struct update_callback_data *data)
  35{
  36        if (p->status != DIFF_STATUS_UNMERGED)
  37                return p->status;
  38        if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL) && !p->two->mode)
  39                /*
  40                 * This is not an explicit add request, and the
  41                 * path is missing from the working tree (deleted)
  42                 */
  43                return DIFF_STATUS_DELETED;
  44        else
  45                /*
  46                 * Either an explicit add request, or path exists
  47                 * in the working tree.  An attempt to explicitly
  48                 * add a path that does not exist in the working tree
  49                 * will be caught as an error by the caller immediately.
  50                 */
  51                return DIFF_STATUS_MODIFIED;
  52}
  53
  54static void update_callback(struct diff_queue_struct *q,
  55                            struct diff_options *opt, void *cbdata)
  56{
  57        int i;
  58        struct update_callback_data *data = cbdata;
  59
  60        for (i = 0; i < q->nr; i++) {
  61                struct diff_filepair *p = q->queue[i];
  62                const char *path = p->one->path;
  63                switch (fix_unmerged_status(p, data)) {
  64                default:
  65                        die(_("unexpected diff status %c"), p->status);
  66                case DIFF_STATUS_MODIFIED:
  67                case DIFF_STATUS_TYPE_CHANGED:
  68                        if (add_file_to_index(&the_index, path,
  69                                        data->flags, data->force_mode)) {
  70                                if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
  71                                        die(_("updating files failed"));
  72                                data->add_errors++;
  73                        }
  74                        break;
  75                case DIFF_STATUS_DELETED:
  76                        if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
  77                                break;
  78                        if (!(data->flags & ADD_CACHE_PRETEND))
  79                                remove_file_from_index(&the_index, path);
  80                        if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
  81                                printf(_("remove '%s'\n"), path);
  82                        break;
  83                }
  84        }
  85}
  86
  87int add_files_to_cache(const char *prefix, const struct pathspec *pathspec,
  88        int flags, int force_mode)
  89{
  90        struct update_callback_data data;
  91        struct rev_info rev;
  92
  93        memset(&data, 0, sizeof(data));
  94        data.flags = flags;
  95        data.force_mode = force_mode;
  96
  97        init_revisions(&rev, prefix);
  98        setup_revisions(0, NULL, &rev, NULL);
  99        if (pathspec)
 100                copy_pathspec(&rev.prune_data, pathspec);
 101        rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
 102        rev.diffopt.format_callback = update_callback;
 103        rev.diffopt.format_callback_data = &data;
 104        rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
 105        run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
 106        return !!data.add_errors;
 107}
 108
 109static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix)
 110{
 111        char *seen;
 112        int i;
 113        struct dir_entry **src, **dst;
 114
 115        seen = xcalloc(pathspec->nr, 1);
 116
 117        src = dst = dir->entries;
 118        i = dir->nr;
 119        while (--i >= 0) {
 120                struct dir_entry *entry = *src++;
 121                if (dir_path_match(entry, pathspec, prefix, seen))
 122                        *dst++ = entry;
 123        }
 124        dir->nr = dst - dir->entries;
 125        add_pathspec_matches_against_index(pathspec, seen);
 126        return seen;
 127}
 128
 129static void refresh(int verbose, const struct pathspec *pathspec)
 130{
 131        char *seen;
 132        int i;
 133
 134        seen = xcalloc(pathspec->nr, 1);
 135        refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
 136                      pathspec, seen, _("Unstaged changes after refreshing the index:"));
 137        for (i = 0; i < pathspec->nr; i++) {
 138                if (!seen[i])
 139                        die(_("pathspec '%s' did not match any files"),
 140                            pathspec->items[i].match);
 141        }
 142        free(seen);
 143}
 144
 145int run_add_interactive(const char *revision, const char *patch_mode,
 146                        const struct pathspec *pathspec)
 147{
 148        int status, i;
 149        struct argv_array argv = ARGV_ARRAY_INIT;
 150
 151        argv_array_push(&argv, "add--interactive");
 152        if (patch_mode)
 153                argv_array_push(&argv, patch_mode);
 154        if (revision)
 155                argv_array_push(&argv, revision);
 156        argv_array_push(&argv, "--");
 157        for (i = 0; i < pathspec->nr; i++)
 158                /* pass original pathspec, to be re-parsed */
 159                argv_array_push(&argv, pathspec->items[i].original);
 160
 161        status = run_command_v_opt(argv.argv, RUN_GIT_CMD);
 162        argv_array_clear(&argv);
 163        return status;
 164}
 165
 166int interactive_add(int argc, const char **argv, const char *prefix, int patch)
 167{
 168        struct pathspec pathspec;
 169
 170        parse_pathspec(&pathspec, 0,
 171                       PATHSPEC_PREFER_FULL |
 172                       PATHSPEC_SYMLINK_LEADING_PATH |
 173                       PATHSPEC_PREFIX_ORIGIN,
 174                       prefix, argv);
 175
 176        return run_add_interactive(NULL,
 177                                   patch ? "--patch" : NULL,
 178                                   &pathspec);
 179}
 180
 181static int edit_patch(int argc, const char **argv, const char *prefix)
 182{
 183        char *file = git_pathdup("ADD_EDIT.patch");
 184        const char *apply_argv[] = { "apply", "--recount", "--cached",
 185                NULL, NULL };
 186        struct child_process child = CHILD_PROCESS_INIT;
 187        struct rev_info rev;
 188        int out;
 189        struct stat st;
 190
 191        apply_argv[3] = file;
 192
 193        git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
 194
 195        if (read_cache() < 0)
 196                die(_("Could not read the index"));
 197
 198        init_revisions(&rev, prefix);
 199        rev.diffopt.context = 7;
 200
 201        argc = setup_revisions(argc, argv, &rev, NULL);
 202        rev.diffopt.output_format = DIFF_FORMAT_PATCH;
 203        rev.diffopt.use_color = 0;
 204        DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES);
 205        out = open(file, O_CREAT | O_WRONLY, 0666);
 206        if (out < 0)
 207                die(_("Could not open '%s' for writing."), file);
 208        rev.diffopt.file = xfdopen(out, "w");
 209        rev.diffopt.close_file = 1;
 210        if (run_diff_files(&rev, 0))
 211                die(_("Could not write patch"));
 212
 213        if (launch_editor(file, NULL, NULL))
 214                die(_("editing patch failed"));
 215
 216        if (stat(file, &st))
 217                die_errno(_("Could not stat '%s'"), file);
 218        if (!st.st_size)
 219                die(_("Empty patch. Aborted."));
 220
 221        child.git_cmd = 1;
 222        child.argv = apply_argv;
 223        if (run_command(&child))
 224                die(_("Could not apply '%s'"), file);
 225
 226        unlink(file);
 227        free(file);
 228        return 0;
 229}
 230
 231static struct lock_file lock_file;
 232
 233static const char ignore_error[] =
 234N_("The following paths are ignored by one of your .gitignore files:\n");
 235
 236static int verbose, show_only, ignored_too, refresh_only;
 237static int ignore_add_errors, intent_to_add, ignore_missing;
 238
 239#define ADDREMOVE_DEFAULT 1
 240static int addremove = ADDREMOVE_DEFAULT;
 241static int addremove_explicit = -1; /* unspecified */
 242
 243static char *chmod_arg;
 244
 245static int ignore_removal_cb(const struct option *opt, const char *arg, int unset)
 246{
 247        /* if we are told to ignore, we are not adding removals */
 248        *(int *)opt->value = !unset ? 0 : 1;
 249        return 0;
 250}
 251
 252static struct option builtin_add_options[] = {
 253        OPT__DRY_RUN(&show_only, N_("dry run")),
 254        OPT__VERBOSE(&verbose, N_("be verbose")),
 255        OPT_GROUP(""),
 256        OPT_BOOL('i', "interactive", &add_interactive, N_("interactive picking")),
 257        OPT_BOOL('p', "patch", &patch_interactive, N_("select hunks interactively")),
 258        OPT_BOOL('e', "edit", &edit_interactive, N_("edit current diff and apply")),
 259        OPT__FORCE(&ignored_too, N_("allow adding otherwise ignored files")),
 260        OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")),
 261        OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that the path will be added later")),
 262        OPT_BOOL('A', "all", &addremove_explicit, N_("add changes from all tracked and untracked files")),
 263        { OPTION_CALLBACK, 0, "ignore-removal", &addremove_explicit,
 264          NULL /* takes no arguments */,
 265          N_("ignore paths removed in the working tree (same as --no-all)"),
 266          PARSE_OPT_NOARG, ignore_removal_cb },
 267        OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the index")),
 268        OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files which cannot be added because of errors")),
 269        OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("check if - even missing - files are ignored in dry run")),
 270        OPT_STRING( 0 , "chmod", &chmod_arg, N_("(+/-)x"), N_("override the executable bit of the listed files")),
 271        OPT_END(),
 272};
 273
 274static int add_config(const char *var, const char *value, void *cb)
 275{
 276        if (!strcmp(var, "add.ignoreerrors") ||
 277            !strcmp(var, "add.ignore-errors")) {
 278                ignore_add_errors = git_config_bool(var, value);
 279                return 0;
 280        }
 281        return git_default_config(var, value, cb);
 282}
 283
 284static int add_files(struct dir_struct *dir, int flags, int force_mode)
 285{
 286        int i, exit_status = 0;
 287
 288        if (dir->ignored_nr) {
 289                fprintf(stderr, _(ignore_error));
 290                for (i = 0; i < dir->ignored_nr; i++)
 291                        fprintf(stderr, "%s\n", dir->ignored[i]->name);
 292                fprintf(stderr, _("Use -f if you really want to add them.\n"));
 293                exit_status = 1;
 294        }
 295
 296        for (i = 0; i < dir->nr; i++)
 297                if (add_file_to_index(&the_index, dir->entries[i]->name,
 298                                flags, force_mode)) {
 299                        if (!ignore_add_errors)
 300                                die(_("adding files failed"));
 301                        exit_status = 1;
 302                }
 303        return exit_status;
 304}
 305
 306int cmd_add(int argc, const char **argv, const char *prefix)
 307{
 308        int exit_status = 0;
 309        struct pathspec pathspec;
 310        struct dir_struct dir;
 311        int flags, force_mode;
 312        int add_new_files;
 313        int require_pathspec;
 314        char *seen = NULL;
 315
 316        git_config(add_config, NULL);
 317
 318        argc = parse_options(argc, argv, prefix, builtin_add_options,
 319                          builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
 320        if (patch_interactive)
 321                add_interactive = 1;
 322        if (add_interactive)
 323                exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive));
 324
 325        if (edit_interactive)
 326                return(edit_patch(argc, argv, prefix));
 327        argc--;
 328        argv++;
 329
 330        if (0 <= addremove_explicit)
 331                addremove = addremove_explicit;
 332        else if (take_worktree_changes && ADDREMOVE_DEFAULT)
 333                addremove = 0; /* "-u" was given but not "-A" */
 334
 335        if (addremove && take_worktree_changes)
 336                die(_("-A and -u are mutually incompatible"));
 337
 338        if (!take_worktree_changes && addremove_explicit < 0 && argc)
 339                /* Turn "git add pathspec..." to "git add -A pathspec..." */
 340                addremove = 1;
 341
 342        if (!show_only && ignore_missing)
 343                die(_("Option --ignore-missing can only be used together with --dry-run"));
 344
 345        if (!chmod_arg)
 346                force_mode = 0;
 347        else if (!strcmp(chmod_arg, "-x"))
 348                force_mode = 0666;
 349        else if (!strcmp(chmod_arg, "+x"))
 350                force_mode = 0777;
 351        else
 352                die(_("--chmod param '%s' must be either -x or +x"), chmod_arg);
 353
 354        add_new_files = !take_worktree_changes && !refresh_only;
 355        require_pathspec = !(take_worktree_changes || (0 < addremove_explicit));
 356
 357        hold_locked_index(&lock_file, 1);
 358
 359        flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
 360                 (show_only ? ADD_CACHE_PRETEND : 0) |
 361                 (intent_to_add ? ADD_CACHE_INTENT : 0) |
 362                 (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
 363                 (!(addremove || take_worktree_changes)
 364                  ? ADD_CACHE_IGNORE_REMOVAL : 0));
 365
 366        if (require_pathspec && argc == 0) {
 367                fprintf(stderr, _("Nothing specified, nothing added.\n"));
 368                fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n"));
 369                return 0;
 370        }
 371
 372        if (read_cache() < 0)
 373                die(_("index file corrupt"));
 374
 375        /*
 376         * Check the "pathspec '%s' did not match any files" block
 377         * below before enabling new magic.
 378         */
 379        parse_pathspec(&pathspec, 0,
 380                       PATHSPEC_PREFER_FULL |
 381                       PATHSPEC_SYMLINK_LEADING_PATH |
 382                       PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE,
 383                       prefix, argv);
 384
 385        if (add_new_files) {
 386                int baselen;
 387
 388                /* Set up the default git porcelain excludes */
 389                memset(&dir, 0, sizeof(dir));
 390                if (!ignored_too) {
 391                        dir.flags |= DIR_COLLECT_IGNORED;
 392                        setup_standard_excludes(&dir);
 393                }
 394
 395                /* This picks up the paths that are not tracked */
 396                baselen = fill_directory(&dir, &pathspec);
 397                if (pathspec.nr)
 398                        seen = prune_directory(&dir, &pathspec, baselen);
 399        }
 400
 401        if (refresh_only) {
 402                refresh(verbose, &pathspec);
 403                goto finish;
 404        }
 405
 406        if (pathspec.nr) {
 407                int i;
 408
 409                if (!seen)
 410                        seen = find_pathspecs_matching_against_index(&pathspec);
 411
 412                /*
 413                 * file_exists() assumes exact match
 414                 */
 415                GUARD_PATHSPEC(&pathspec,
 416                               PATHSPEC_FROMTOP |
 417                               PATHSPEC_LITERAL |
 418                               PATHSPEC_GLOB |
 419                               PATHSPEC_ICASE |
 420                               PATHSPEC_EXCLUDE);
 421
 422                for (i = 0; i < pathspec.nr; i++) {
 423                        const char *path = pathspec.items[i].match;
 424                        if (pathspec.items[i].magic & PATHSPEC_EXCLUDE)
 425                                continue;
 426                        if (!seen[i] && path[0] &&
 427                            ((pathspec.items[i].magic &
 428                              (PATHSPEC_GLOB | PATHSPEC_ICASE)) ||
 429                             !file_exists(path))) {
 430                                if (ignore_missing) {
 431                                        int dtype = DT_UNKNOWN;
 432                                        if (is_excluded(&dir, path, &dtype))
 433                                                dir_add_ignored(&dir, path, pathspec.items[i].len);
 434                                } else
 435                                        die(_("pathspec '%s' did not match any files"),
 436                                            pathspec.items[i].original);
 437                        }
 438                }
 439                free(seen);
 440        }
 441
 442        plug_bulk_checkin();
 443
 444        exit_status |= add_files_to_cache(prefix, &pathspec, flags, force_mode);
 445
 446        if (add_new_files)
 447                exit_status |= add_files(&dir, flags, force_mode);
 448
 449        unplug_bulk_checkin();
 450
 451finish:
 452        if (active_cache_changed) {
 453                if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
 454                        die(_("Unable to write new index file"));
 455        }
 456
 457        return exit_status;
 458}