static void parse_args(struct pathspec *pathspec, const char **argv, const char *prefix, int patch_mode, const char **rev_ret) { const char *rev = "HEAD"; unsigned char unused[20]; /* * Possible arguments are: * * git reset [-opts] [<rev>] * git reset [-opts] <tree> [<paths>...] * git reset [-opts] <tree> -- [<paths>...] * git reset [-opts] -- [<paths>...] * git reset [-opts] <paths>... * * At this point, argv points immediately after [-opts]. */ if (argv[0]) { if (!strcmp(argv[0], "--")) { argv++; /* reset to HEAD, possibly with paths */ } else if (argv[1] && !strcmp(argv[1], "--")) { rev = argv[0]; argv += 2; } /* * Otherwise, argv[0] could be either <rev> or <paths> and * has to be unambiguous. If there is a single argument, it * can not be a tree */ else if ((!argv[1] && !get_sha1_committish(argv[0], unused)) || (argv[1] && !get_sha1_treeish(argv[0], unused))) { /* * Ok, argv[0] looks like a commit/tree; it should not * be a filename. */ verify_non_filename(prefix, argv[0]); rev = *argv++; } else { /* Otherwise we treat this as a filename */ verify_filename(prefix, argv[0], 1); } } *rev_ret = rev; if (read_cache() < 0) die(_("index file corrupt")); parse_pathspec(pathspec, 0, PATHSPEC_PREFER_FULL | PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP | (patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0), prefix, argv); }
void init_notes(struct notes_tree *t, const char *notes_ref, combine_notes_fn combine_notes, int flags) { unsigned char sha1[20], object_sha1[20]; unsigned mode; struct leaf_node root_tree; if (!t) t = &default_notes_tree; assert(!t->initialized); if (!notes_ref) notes_ref = default_notes_ref(); if (!combine_notes) combine_notes = combine_notes_concatenate; t->root = (struct int_node *) xcalloc(1, sizeof(struct int_node)); t->first_non_note = NULL; t->prev_non_note = NULL; t->ref = xstrdup_or_null(notes_ref); t->update_ref = (flags & NOTES_INIT_WRITABLE) ? t->ref : NULL; t->combine_notes = combine_notes; t->initialized = 1; t->dirty = 0; if (flags & NOTES_INIT_EMPTY || !notes_ref || get_sha1_treeish(notes_ref, object_sha1)) return; if (flags & NOTES_INIT_WRITABLE && read_ref(notes_ref, object_sha1)) die("Cannot use notes ref %s", notes_ref); if (get_tree_entry(object_sha1, "", sha1, &mode)) die("Failed to read notes tree referenced by %s (%s)", notes_ref, sha1_to_hex(object_sha1)); hashclr(root_tree.key_sha1); hashcpy(root_tree.val_sha1, sha1); load_subtree(t, &root_tree, t->root, 0); }
int cmd_reset(int argc, const char **argv, const char *prefix) { int reset_type = NONE, update_ref_status = 0, quiet = 0; int patch_mode = 0, unborn; const char *rev; unsigned char sha1[20]; const char **pathspec = NULL; const struct option options[] = { OPT__QUIET(&quiet, N_("be quiet, only report errors")), OPT_SET_INT(0, "mixed", &reset_type, N_("reset HEAD and index"), MIXED), OPT_SET_INT(0, "soft", &reset_type, N_("reset only HEAD"), SOFT), OPT_SET_INT(0, "hard", &reset_type, N_("reset HEAD, index and working tree"), HARD), OPT_SET_INT(0, "merge", &reset_type, N_("reset HEAD, index and working tree"), MERGE), OPT_SET_INT(0, "keep", &reset_type, N_("reset HEAD but keep local changes"), KEEP), OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")), OPT_END() }; git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, options, git_reset_usage, PARSE_OPT_KEEP_DASHDASH); pathspec = parse_args(argv, prefix, &rev); unborn = !strcmp(rev, "HEAD") && get_sha1("HEAD", sha1); if (unborn) { /* reset on unborn branch: treat as reset to empty tree */ hashcpy(sha1, EMPTY_TREE_SHA1_BIN); } else if (!pathspec) { struct commit *commit; if (get_sha1_committish(rev, sha1)) die(_("Failed to resolve '%s' as a valid revision."), rev); commit = lookup_commit_reference(sha1); if (!commit) die(_("Could not parse object '%s'."), rev); hashcpy(sha1, commit->object.sha1); } else { struct tree *tree; if (get_sha1_treeish(rev, sha1)) die(_("Failed to resolve '%s' as a valid tree."), rev); tree = parse_tree_indirect(sha1); if (!tree) die(_("Could not parse object '%s'."), rev); hashcpy(sha1, tree->object.sha1); } if (patch_mode) { if (reset_type != NONE) die(_("--patch is incompatible with --{hard,mixed,soft}")); return run_add_interactive(sha1_to_hex(sha1), "--patch=reset", pathspec); } /* git reset tree [--] paths... can be used to * load chosen paths from the tree into the index without * affecting the working tree nor HEAD. */ if (pathspec) { if (reset_type == MIXED) warning(_("--mixed with paths is deprecated; use 'git reset -- <paths>' instead.")); else if (reset_type != NONE) die(_("Cannot do %s reset with paths."), _(reset_type_names[reset_type])); } if (reset_type == NONE) reset_type = MIXED; /* by default */ if (reset_type != SOFT && reset_type != MIXED) setup_work_tree(); if (reset_type == MIXED && is_bare_repository()) die(_("%s reset is not allowed in a bare repository"), _(reset_type_names[reset_type])); /* Soft reset does not touch the index file nor the working tree * at all, but requires them in a good order. Other resets reset * the index file to the tree object we are switching to. */ if (reset_type == SOFT || reset_type == KEEP) die_if_unmerged_cache(reset_type); if (reset_type != SOFT) { struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); int newfd = hold_locked_index(lock, 1); if (reset_type == MIXED) { if (read_from_tree(pathspec, sha1)) return 1; } else { int err = reset_index(sha1, reset_type, quiet); if (reset_type == KEEP && !err) err = reset_index(sha1, MIXED, quiet); if (err) die(_("Could not reset index file to revision '%s'."), rev); } if (reset_type == MIXED) { /* Report what has not been updated. */ int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN; refresh_index(&the_index, flags, NULL, NULL, _("Unstaged changes after reset:")); } if (write_cache(newfd, active_cache, active_nr) || commit_locked_index(lock)) die(_("Could not write new index file.")); } if (!pathspec && !unborn) { /* Any resets without paths update HEAD to the head being * switched to, saving the previous head in ORIG_HEAD before. */ update_ref_status = update_refs(rev, sha1); if (reset_type == HARD && !update_ref_status && !quiet) print_new_head_line(lookup_commit_reference(sha1)); } if (!pathspec) remove_branch_state(); return update_ref_status; }