int cmd_reset(int argc, const char **argv, const char *prefix) { int i = 0, reset_type = NONE, update_ref_status = 0, quiet = 0; int patch_mode = 0; const char *rev = "HEAD"; unsigned char sha1[20], *orig = NULL, sha1_orig[20], *old_orig = NULL, sha1_old_orig[20]; struct commit *commit; struct strbuf msg = STRBUF_INIT; const struct option options[] = { OPT__QUIET(&quiet, "be quiet, only report errors"), OPT_SET_INT(0, "mixed", &reset_type, "reset HEAD and index", MIXED), OPT_SET_INT(0, "soft", &reset_type, "reset only HEAD", SOFT), OPT_SET_INT(0, "hard", &reset_type, "reset HEAD, index and working tree", HARD), OPT_SET_INT(0, "merge", &reset_type, "reset HEAD, index and working tree", MERGE), OPT_SET_INT(0, "keep", &reset_type, "reset HEAD but keep local changes", KEEP), OPT_BOOLEAN('p', "patch", &patch_mode, "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); /* * Possible arguments are: * * git reset [-opts] <rev> <paths>... * git reset [-opts] <rev> -- <paths>... * git reset [-opts] -- <paths>... * git reset [-opts] <paths>... * * At this point, argv[i] points immediately after [-opts]. */ if (i < argc) { if (!strcmp(argv[i], "--")) { i++; /* reset to HEAD, possibly with paths */ } else if (i + 1 < argc && !strcmp(argv[i+1], "--")) { rev = argv[i]; i += 2; } /* * Otherwise, argv[i] could be either <rev> or <paths> and * has to be unambiguous. */ else if (!get_sha1(argv[i], sha1)) { /* * Ok, argv[i] looks like a rev; it should not * be a filename. */ verify_non_filename(prefix, argv[i]); rev = argv[i++]; } else { /* Otherwise we treat this as a filename */ verify_filename(prefix, argv[i]); } } if (get_sha1(rev, sha1)) die(_("Failed to resolve '%s' as a valid ref."), rev); commit = lookup_commit_reference(sha1); if (!commit) die(_("Could not parse object '%s'."), rev); hashcpy(sha1, commit->object.sha1); if (patch_mode) { if (reset_type != NONE) die(_("--patch is incompatible with --{hard,mixed,soft}")); return interactive_reset(rev, argv + i, prefix); } /* 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 (i < argc) { 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])); return read_from_tree(prefix, argv + i, sha1, quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN); } 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) die_if_unmerged_cache(reset_type); else { int err; if (reset_type == KEEP) die_if_unmerged_cache(reset_type); err = reset_index_file(sha1, reset_type, quiet); if (reset_type == KEEP) err = err || reset_index_file(sha1, MIXED, quiet); if (err) die(_("Could not reset index file to revision '%s'."), rev); } /* Any resets update HEAD to the head being switched to, * saving the previous head in ORIG_HEAD before. */ if (!get_sha1("ORIG_HEAD", sha1_old_orig)) old_orig = sha1_old_orig; if (!get_sha1("HEAD", sha1_orig)) { orig = sha1_orig; set_reflog_message(&msg, "updating ORIG_HEAD", NULL); update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, MSG_ON_ERR); } else if (old_orig) delete_ref("ORIG_HEAD", old_orig, 0); set_reflog_message(&msg, "updating HEAD", rev); update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, MSG_ON_ERR); switch (reset_type) { case HARD: if (!update_ref_status && !quiet) print_new_head_line(commit); break; case SOFT: /* Nothing else to do. */ break; case MIXED: /* Report what has not been updated. */ update_index_refresh(0, NULL, quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN); break; } remove_branch_state(); strbuf_release(&msg); return update_ref_status; }
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; }
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, nul_term_line = 0, read_from_stdin = 0, unborn; char **stdin_paths = NULL; int stdin_nr = 0, stdin_alloc = 0; const char *rev; struct object_id oid; struct pathspec pathspec; int intent_to_add = 0; 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), { OPTION_CALLBACK, 0, "recurse-submodules", NULL, "reset", "control recursive updating of submodules", PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater }, OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")), OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that removed paths will be added later")), OPT_BOOL('z', NULL, &nul_term_line, N_("EXPERIMENTAL: paths are separated with NUL character")), OPT_BOOL(0, "stdin", &read_from_stdin, N_("EXPERIMENTAL: read paths from <stdin>")), OPT_END() }; git_config(git_reset_config, NULL); argc = parse_options(argc, argv, prefix, options, git_reset_usage, PARSE_OPT_KEEP_DASHDASH); parse_args(&pathspec, argv, prefix, patch_mode, &rev); if (read_from_stdin) { strbuf_getline_fn getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; int flags = PATHSPEC_PREFER_FULL; struct strbuf buf = STRBUF_INIT; struct strbuf unquoted = STRBUF_INIT; if (patch_mode) die(_("--stdin is incompatible with --patch")); if (pathspec.nr) die(_("--stdin is incompatible with path arguments")); while (getline_fn(&buf, stdin) != EOF) { if (!nul_term_line && buf.buf[0] == '"') { strbuf_reset(&unquoted); if (unquote_c_style(&unquoted, buf.buf, NULL)) die(_("line is badly quoted")); strbuf_swap(&buf, &unquoted); } ALLOC_GROW(stdin_paths, stdin_nr + 1, stdin_alloc); stdin_paths[stdin_nr++] = xstrdup(buf.buf); strbuf_reset(&buf); } strbuf_release(&unquoted); strbuf_release(&buf); ALLOC_GROW(stdin_paths, stdin_nr + 1, stdin_alloc); stdin_paths[stdin_nr++] = NULL; flags |= PATHSPEC_LITERAL_PATH; parse_pathspec(&pathspec, 0, flags, prefix, (const char **)stdin_paths); } else if (nul_term_line) die(_("-z requires --stdin")); unborn = !strcmp(rev, "HEAD") && get_oid("HEAD", &oid); if (unborn) { /* reset on unborn branch: treat as reset to empty tree */ hashcpy(oid.hash, EMPTY_TREE_SHA1_BIN); } else if (!pathspec.nr) { struct commit *commit; if (get_oid_committish(rev, &oid)) die(_("Failed to resolve '%s' as a valid revision."), rev); commit = lookup_commit_reference(&oid); if (!commit) die(_("Could not parse object '%s'."), rev); oidcpy(&oid, &commit->object.oid); } else { struct tree *tree; if (get_oid_treeish(rev, &oid)) die(_("Failed to resolve '%s' as a valid tree."), rev); tree = parse_tree_indirect(&oid); if (!tree) die(_("Could not parse object '%s'."), rev); oidcpy(&oid, &tree->object.oid); } if (patch_mode) { if (reset_type != NONE) die(_("--patch is incompatible with --{hard,mixed,soft}")); return run_add_interactive(rev, "--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.nr) { 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 || get_git_work_tree())) 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])); if (intent_to_add && reset_type != MIXED) die(_("-N can only be used with --mixed")); /* 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 = LOCK_INIT; hold_locked_index(&lock, LOCK_DIE_ON_ERROR); if (reset_type == MIXED) { int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN; if (read_from_tree(&pathspec, &oid, intent_to_add)) return 1; if (get_git_work_tree()) refresh_index(&the_index, flags, NULL, NULL, _("Unstaged changes after reset:")); } else { int err = reset_index(&oid, reset_type, quiet); if (reset_type == KEEP && !err) err = reset_index(&oid, MIXED, quiet); if (err) die(_("Could not reset index file to revision '%s'."), rev); } if (write_locked_index(&the_index, &lock, COMMIT_LOCK)) die(_("Could not write new index file.")); } if (!pathspec.nr && !unborn) { /* Any resets without paths update HEAD to the head being * switched to, saving the previous head in ORIG_HEAD before. */ update_ref_status = reset_refs(rev, &oid); if (reset_type == HARD && !update_ref_status && !quiet) print_new_head_line(lookup_commit_reference(&oid)); } if (!pathspec.nr) remove_branch_state(); if (stdin_paths) { while (stdin_nr) free(stdin_paths[--stdin_nr]); free(stdin_paths); } return update_ref_status; }