Andrew's git / gitweb.git / builtin/add.c
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builtin / add.con commit clone: handle empty config values in -c (db4eca1)
   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;
  30        int add_errors;
  31};
  32
  33static void chmod_pathspec(struct pathspec *pathspec, int force_mode)
  34{
  35        int i;
  36
  37        for (i = 0; i < active_nr; i++) {
  38                struct cache_entry *ce = active_cache[i];
  39
  40                if (pathspec && !ce_path_match(ce, pathspec, NULL))
  41                        continue;
  42
  43                if (chmod_cache_entry(ce, force_mode) < 0)
  44                        fprintf(stderr, "cannot chmod '%s'", ce->name);
  45        }
  46}
  47
  48static int fix_unmerged_status(struct diff_filepair *p,
  49                               struct update_callback_data *data)
  50{
  51        if (p->status != DIFF_STATUS_UNMERGED)
  52                return p->status;
  53        if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL) && !p->two->mode)
  54                /*
  55                 * This is not an explicit add request, and the
  56                 * path is missing from the working tree (deleted)
  57                 */
  58                return DIFF_STATUS_DELETED;
  59        else
  60                /*
  61                 * Either an explicit add request, or path exists
  62                 * in the working tree.  An attempt to explicitly
  63                 * add a path that does not exist in the working tree
  64                 * will be caught as an error by the caller immediately.
  65                 */
  66                return DIFF_STATUS_MODIFIED;
  67}
  68
  69static void update_callback(struct diff_queue_struct *q,
  70                            struct diff_options *opt, void *cbdata)
  71{
  72        int i;
  73        struct update_callback_data *data = cbdata;
  74
  75        for (i = 0; i < q->nr; i++) {
  76                struct diff_filepair *p = q->queue[i];
  77                const char *path = p->one->path;
  78                switch (fix_unmerged_status(p, data)) {
  79                default:
  80                        die(_("unexpected diff status %c"), p->status);
  81                case DIFF_STATUS_MODIFIED:
  82                case DIFF_STATUS_TYPE_CHANGED:
  83                        if (add_file_to_index(&the_index, path, data->flags)) {
  84                                if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
  85                                        die(_("updating files failed"));
  86                                data->add_errors++;
  87                        }
  88                        break;
  89                case DIFF_STATUS_DELETED:
  90                        if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
  91                                break;
  92                        if (!(data->flags & ADD_CACHE_PRETEND))
  93                                remove_file_from_index(&the_index, path);
  94                        if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
  95                                printf(_("remove '%s'\n"), path);
  96                        break;
  97                }
  98        }
  99}
 100
 101int add_files_to_cache(const char *prefix,
 102                       const struct pathspec *pathspec, int flags)
 103{
 104        struct update_callback_data data;
 105        struct rev_info rev;
 106
 107        memset(&data, 0, sizeof(data));
 108        data.flags = flags;
 109
 110        init_revisions(&rev, prefix);
 111        setup_revisions(0, NULL, &rev, NULL);
 112        if (pathspec)
 113                copy_pathspec(&rev.prune_data, pathspec);
 114        rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
 115        rev.diffopt.format_callback = update_callback;
 116        rev.diffopt.format_callback_data = &data;
 117        rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
 118        run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
 119        return !!data.add_errors;
 120}
 121
 122static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix)
 123{
 124        char *seen;
 125        int i;
 126        struct dir_entry **src, **dst;
 127
 128        seen = xcalloc(pathspec->nr, 1);
 129
 130        src = dst = dir->entries;
 131        i = dir->nr;
 132        while (--i >= 0) {
 133                struct dir_entry *entry = *src++;
 134                if (dir_path_match(entry, pathspec, prefix, seen))
 135                        *dst++ = entry;
 136        }
 137        dir->nr = dst - dir->entries;
 138        add_pathspec_matches_against_index(pathspec, seen);
 139        return seen;
 140}
 141
 142static void refresh(int verbose, const struct pathspec *pathspec)
 143{
 144        char *seen;
 145        int i;
 146
 147        seen = xcalloc(pathspec->nr, 1);
 148        refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
 149                      pathspec, seen, _("Unstaged changes after refreshing the index:"));
 150        for (i = 0; i < pathspec->nr; i++) {
 151                if (!seen[i])
 152                        die(_("pathspec '%s' did not match any files"),
 153                            pathspec->items[i].match);
 154        }
 155        free(seen);
 156}
 157
 158int run_add_interactive(const char *revision, const char *patch_mode,
 159                        const struct pathspec *pathspec)
 160{
 161        int status, i;
 162        struct argv_array argv = ARGV_ARRAY_INIT;
 163
 164        argv_array_push(&argv, "add--interactive");
 165        if (patch_mode)
 166                argv_array_push(&argv, patch_mode);
 167        if (revision)
 168                argv_array_push(&argv, revision);
 169        argv_array_push(&argv, "--");
 170        for (i = 0; i < pathspec->nr; i++)
 171                /* pass original pathspec, to be re-parsed */
 172                argv_array_push(&argv, pathspec->items[i].original);
 173
 174        status = run_command_v_opt(argv.argv, RUN_GIT_CMD);
 175        argv_array_clear(&argv);
 176        return status;
 177}
 178
 179int interactive_add(int argc, const char **argv, const char *prefix, int patch)
 180{
 181        struct pathspec pathspec;
 182
 183        parse_pathspec(&pathspec, 0,
 184                       PATHSPEC_PREFER_FULL |
 185                       PATHSPEC_SYMLINK_LEADING_PATH |
 186                       PATHSPEC_PREFIX_ORIGIN,
 187                       prefix, argv);
 188
 189        return run_add_interactive(NULL,
 190                                   patch ? "--patch" : NULL,
 191                                   &pathspec);
 192}
 193
 194static int edit_patch(int argc, const char **argv, const char *prefix)
 195{
 196        char *file = git_pathdup("ADD_EDIT.patch");
 197        const char *apply_argv[] = { "apply", "--recount", "--cached",
 198                NULL, NULL };
 199        struct child_process child = CHILD_PROCESS_INIT;
 200        struct rev_info rev;
 201        int out;
 202        struct stat st;
 203
 204        apply_argv[3] = file;
 205
 206        git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
 207
 208        if (read_cache() < 0)
 209                die(_("Could not read the index"));
 210
 211        init_revisions(&rev, prefix);
 212        rev.diffopt.context = 7;
 213
 214        argc = setup_revisions(argc, argv, &rev, NULL);
 215        rev.diffopt.output_format = DIFF_FORMAT_PATCH;
 216        rev.diffopt.use_color = 0;
 217        DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES);
 218        out = open(file, O_CREAT | O_WRONLY, 0666);
 219        if (out < 0)
 220                die(_("Could not open '%s' for writing."), file);
 221        rev.diffopt.file = xfdopen(out, "w");
 222        rev.diffopt.close_file = 1;
 223        if (run_diff_files(&rev, 0))
 224                die(_("Could not write patch"));
 225
 226        if (launch_editor(file, NULL, NULL))
 227                die(_("editing patch failed"));
 228
 229        if (stat(file, &st))
 230                die_errno(_("Could not stat '%s'"), file);
 231        if (!st.st_size)
 232                die(_("Empty patch. Aborted."));
 233
 234        child.git_cmd = 1;
 235        child.argv = apply_argv;
 236        if (run_command(&child))
 237                die(_("Could not apply '%s'"), file);
 238
 239        unlink(file);
 240        free(file);
 241        return 0;
 242}
 243
 244static struct lock_file lock_file;
 245
 246static const char ignore_error[] =
 247N_("The following paths are ignored by one of your .gitignore files:\n");
 248
 249static int verbose, show_only, ignored_too, refresh_only;
 250static int ignore_add_errors, intent_to_add, ignore_missing;
 251
 252#define ADDREMOVE_DEFAULT 1
 253static int addremove = ADDREMOVE_DEFAULT;
 254static int addremove_explicit = -1; /* unspecified */
 255
 256static char *chmod_arg;
 257
 258static int ignore_removal_cb(const struct option *opt, const char *arg, int unset)
 259{
 260        /* if we are told to ignore, we are not adding removals */
 261        *(int *)opt->value = !unset ? 0 : 1;
 262        return 0;
 263}
 264
 265static struct option builtin_add_options[] = {
 266        OPT__DRY_RUN(&show_only, N_("dry run")),
 267        OPT__VERBOSE(&verbose, N_("be verbose")),
 268        OPT_GROUP(""),
 269        OPT_BOOL('i', "interactive", &add_interactive, N_("interactive picking")),
 270        OPT_BOOL('p', "patch", &patch_interactive, N_("select hunks interactively")),
 271        OPT_BOOL('e', "edit", &edit_interactive, N_("edit current diff and apply")),
 272        OPT__FORCE(&ignored_too, N_("allow adding otherwise ignored files")),
 273        OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")),
 274        OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that the path will be added later")),
 275        OPT_BOOL('A', "all", &addremove_explicit, N_("add changes from all tracked and untracked files")),
 276        { OPTION_CALLBACK, 0, "ignore-removal", &addremove_explicit,
 277          NULL /* takes no arguments */,
 278          N_("ignore paths removed in the working tree (same as --no-all)"),
 279          PARSE_OPT_NOARG, ignore_removal_cb },
 280        OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the index")),
 281        OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files which cannot be added because of errors")),
 282        OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("check if - even missing - files are ignored in dry run")),
 283        OPT_STRING( 0 , "chmod", &chmod_arg, N_("(+/-)x"), N_("override the executable bit of the listed files")),
 284        OPT_END(),
 285};
 286
 287static int add_config(const char *var, const char *value, void *cb)
 288{
 289        if (!strcmp(var, "add.ignoreerrors") ||
 290            !strcmp(var, "add.ignore-errors")) {
 291                ignore_add_errors = git_config_bool(var, value);
 292                return 0;
 293        }
 294        return git_default_config(var, value, cb);
 295}
 296
 297static int add_files(struct dir_struct *dir, int flags)
 298{
 299        int i, exit_status = 0;
 300
 301        if (dir->ignored_nr) {
 302                fprintf(stderr, _(ignore_error));
 303                for (i = 0; i < dir->ignored_nr; i++)
 304                        fprintf(stderr, "%s\n", dir->ignored[i]->name);
 305                fprintf(stderr, _("Use -f if you really want to add them.\n"));
 306                exit_status = 1;
 307        }
 308
 309        for (i = 0; i < dir->nr; i++)
 310                if (add_file_to_index(&the_index, dir->entries[i]->name, flags)) {
 311                        if (!ignore_add_errors)
 312                                die(_("adding files failed"));
 313                        exit_status = 1;
 314                }
 315        return exit_status;
 316}
 317
 318int cmd_add(int argc, const char **argv, const char *prefix)
 319{
 320        int exit_status = 0;
 321        struct pathspec pathspec;
 322        struct dir_struct dir;
 323        int flags;
 324        int add_new_files;
 325        int require_pathspec;
 326        char *seen = NULL;
 327
 328        git_config(add_config, NULL);
 329
 330        argc = parse_options(argc, argv, prefix, builtin_add_options,
 331                          builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
 332        if (patch_interactive)
 333                add_interactive = 1;
 334        if (add_interactive)
 335                exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive));
 336
 337        if (edit_interactive)
 338                return(edit_patch(argc, argv, prefix));
 339        argc--;
 340        argv++;
 341
 342        if (0 <= addremove_explicit)
 343                addremove = addremove_explicit;
 344        else if (take_worktree_changes && ADDREMOVE_DEFAULT)
 345                addremove = 0; /* "-u" was given but not "-A" */
 346
 347        if (addremove && take_worktree_changes)
 348                die(_("-A and -u are mutually incompatible"));
 349
 350        if (!take_worktree_changes && addremove_explicit < 0 && argc)
 351                /* Turn "git add pathspec..." to "git add -A pathspec..." */
 352                addremove = 1;
 353
 354        if (!show_only && ignore_missing)
 355                die(_("Option --ignore-missing can only be used together with --dry-run"));
 356
 357        if (chmod_arg && ((chmod_arg[0] != '-' && chmod_arg[0] != '+') ||
 358                          chmod_arg[1] != 'x' || chmod_arg[2]))
 359                die(_("--chmod param '%s' must be either -x or +x"), chmod_arg);
 360
 361        add_new_files = !take_worktree_changes && !refresh_only;
 362        require_pathspec = !(take_worktree_changes || (0 < addremove_explicit));
 363
 364        hold_locked_index(&lock_file, 1);
 365
 366        flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
 367                 (show_only ? ADD_CACHE_PRETEND : 0) |
 368                 (intent_to_add ? ADD_CACHE_INTENT : 0) |
 369                 (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
 370                 (!(addremove || take_worktree_changes)
 371                  ? ADD_CACHE_IGNORE_REMOVAL : 0));
 372
 373        if (require_pathspec && argc == 0) {
 374                fprintf(stderr, _("Nothing specified, nothing added.\n"));
 375                fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n"));
 376                return 0;
 377        }
 378
 379        if (read_cache() < 0)
 380                die(_("index file corrupt"));
 381
 382        /*
 383         * Check the "pathspec '%s' did not match any files" block
 384         * below before enabling new magic.
 385         */
 386        parse_pathspec(&pathspec, 0,
 387                       PATHSPEC_PREFER_FULL |
 388                       PATHSPEC_SYMLINK_LEADING_PATH |
 389                       PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE,
 390                       prefix, argv);
 391
 392        if (add_new_files) {
 393                int baselen;
 394
 395                /* Set up the default git porcelain excludes */
 396                memset(&dir, 0, sizeof(dir));
 397                if (!ignored_too) {
 398                        dir.flags |= DIR_COLLECT_IGNORED;
 399                        setup_standard_excludes(&dir);
 400                }
 401
 402                /* This picks up the paths that are not tracked */
 403                baselen = fill_directory(&dir, &pathspec);
 404                if (pathspec.nr)
 405                        seen = prune_directory(&dir, &pathspec, baselen);
 406        }
 407
 408        if (refresh_only) {
 409                refresh(verbose, &pathspec);
 410                goto finish;
 411        }
 412
 413        if (pathspec.nr) {
 414                int i;
 415
 416                if (!seen)
 417                        seen = find_pathspecs_matching_against_index(&pathspec);
 418
 419                /*
 420                 * file_exists() assumes exact match
 421                 */
 422                GUARD_PATHSPEC(&pathspec,
 423                               PATHSPEC_FROMTOP |
 424                               PATHSPEC_LITERAL |
 425                               PATHSPEC_GLOB |
 426                               PATHSPEC_ICASE |
 427                               PATHSPEC_EXCLUDE);
 428
 429                for (i = 0; i < pathspec.nr; i++) {
 430                        const char *path = pathspec.items[i].match;
 431                        if (pathspec.items[i].magic & PATHSPEC_EXCLUDE)
 432                                continue;
 433                        if (!seen[i] && path[0] &&
 434                            ((pathspec.items[i].magic &
 435                              (PATHSPEC_GLOB | PATHSPEC_ICASE)) ||
 436                             !file_exists(path))) {
 437                                if (ignore_missing) {
 438                                        int dtype = DT_UNKNOWN;
 439                                        if (is_excluded(&dir, path, &dtype))
 440                                                dir_add_ignored(&dir, path, pathspec.items[i].len);
 441                                } else
 442                                        die(_("pathspec '%s' did not match any files"),
 443                                            pathspec.items[i].original);
 444                        }
 445                }
 446                free(seen);
 447        }
 448
 449        plug_bulk_checkin();
 450
 451        exit_status |= add_files_to_cache(prefix, &pathspec, flags);
 452
 453        if (add_new_files)
 454                exit_status |= add_files(&dir, flags);
 455
 456        if (chmod_arg && pathspec.nr)
 457                chmod_pathspec(&pathspec, chmod_arg[0]);
 458        unplug_bulk_checkin();
 459
 460finish:
 461        if (active_cache_changed) {
 462                if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
 463                        die(_("Unable to write new index file"));
 464        }
 465
 466        return exit_status;
 467}