int branch_exists;
const char *prefix;
- const char **pathspec;
+ struct pathspec pathspec;
struct tree *source_tree;
};
return 0;
}
-static int read_tree_some(struct tree *tree, const char **pathspec)
+static int read_tree_some(struct tree *tree, const struct pathspec *pathspec)
{
- struct pathspec ps;
- init_pathspec(&ps, pathspec);
- read_tree_recursive(tree, "", 0, 0, &ps, update_some, NULL);
- free_pathspec(&ps);
+ read_tree_recursive(tree, "", 0, 0, pathspec, update_some, NULL);
/* update the index with the given tree's info
* for all args, expanding wildcards, and exit
int flag;
struct commit *head;
int errs = 0;
- int stage = opts->writeout_stage;
- int merge = opts->merge;
int newfd;
struct lock_file *lock_file;
if (opts->patch_mode)
return run_add_interactive(revision, "--patch=checkout",
- opts->pathspec);
+ &opts->pathspec);
lock_file = xcalloc(1, sizeof(struct lock_file));
newfd = hold_locked_index(lock_file, 1);
- if (read_cache_preload(opts->pathspec) < 0)
+ if (read_cache_preload(&opts->pathspec) < 0)
return error(_("corrupt index file"));
if (opts->source_tree)
- read_tree_some(opts->source_tree, opts->pathspec);
+ read_tree_some(opts->source_tree, &opts->pathspec);
- for (pos = 0; opts->pathspec[pos]; pos++)
- ;
- ps_matched = xcalloc(1, pos);
+ ps_matched = xcalloc(1, opts->pathspec.nr);
/*
* Make sure all pathspecs participated in locating the paths
* match_pathspec() for _all_ entries when
* opts->source_tree != NULL.
*/
- if (match_pathspec(opts->pathspec, ce->name, ce_namelen(ce),
+ if (match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce),
0, ps_matched))
ce->ce_flags |= CE_MATCHED;
}
- if (report_path_error(ps_matched, opts->pathspec, opts->prefix)) {
+ if (report_path_error(ps_matched, &opts->pathspec, opts->prefix)) {
free(ps_matched);
return 1;
}
continue;
if (opts->force) {
warning(_("path '%s' is unmerged"), ce->name);
- } else if (stage) {
- errs |= check_stage(stage, ce, pos);
+ } else if (opts->writeout_stage) {
+ errs |= check_stage(opts->writeout_stage, ce, pos);
} else if (opts->merge) {
errs |= check_stages((1<<2) | (1<<3), ce, pos);
} else {
errs |= checkout_entry(ce, &state, NULL);
continue;
}
- if (stage)
- errs |= checkout_stage(stage, ce, pos, &state);
- else if (merge)
+ if (opts->writeout_stage)
+ errs |= checkout_stage(opts->writeout_stage, ce, pos, &state);
+ else if (opts->merge)
errs |= checkout_merged(pos, &state);
pos = skip_same_name(ce, pos) - 1;
}
static void describe_detached_head(const char *msg, struct commit *commit)
{
struct strbuf sb = STRBUF_INIT;
- parse_commit(commit);
- pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb);
+ if (!parse_commit(commit))
+ pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb);
fprintf(stderr, "%s %s... %s\n", msg,
find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), sb.buf);
strbuf_release(&sb);
static void describe_one_orphan(struct strbuf *sb, struct commit *commit)
{
- parse_commit(commit);
strbuf_addstr(sb, " ");
strbuf_addstr(sb,
find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV));
strbuf_addch(sb, ' ');
- pp_commit_easy(CMIT_FMT_ONELINE, commit, sb);
+ if (!parse_commit(commit))
+ pp_commit_easy(CMIT_FMT_ONELINE, commit, sb);
strbuf_addch(sb, '\n');
}
new->commit = old.commit;
if (!new->commit)
die(_("You are on a branch yet to be born"));
- parse_commit(new->commit);
+ parse_commit_or_die(new->commit);
}
ret = merge_working_tree(opts, &old, new, &writeout_error);
int argcount = 0;
unsigned char branch_rev[20];
const char *arg;
- int has_dash_dash;
+ int dash_dash_pos;
+ int has_dash_dash = 0;
+ int i;
/*
* case 1: git checkout <ref> -- [<paths>]
*
* everything after the '--' must be paths.
*
- * case 3: git checkout <something> [<paths>]
+ * case 3: git checkout <something> [--]
*
- * With no paths, if <something> is a commit, that is to
- * switch to the branch or detach HEAD at it. As a special case,
- * if <something> is A...B (missing A or B means HEAD but you can
- * omit at most one side), and if there is a unique merge base
- * between A and B, A...B names that merge base.
+ * (a) If <something> is a commit, that is to
+ * switch to the branch or detach HEAD at it. As a special case,
+ * if <something> is A...B (missing A or B means HEAD but you can
+ * omit at most one side), and if there is a unique merge base
+ * between A and B, A...B names that merge base.
*
- * With no paths, if <something> is _not_ a commit, no -t nor -b
- * was given, and there is a tracking branch whose name is
- * <something> in one and only one remote, then this is a short-hand
- * to fork local <something> from that remote-tracking branch.
+ * (b) If <something> is _not_ a commit, either "--" is present
+ * or <something> is not a path, no -t nor -b was given, and
+ * and there is a tracking branch whose name is <something>
+ * in one and only one remote, then this is a short-hand to
+ * fork local <something> from that remote-tracking branch.
*
- * Otherwise <something> shall not be ambiguous.
+ * (c) Otherwise, if "--" is present, treat it like case (1).
+ *
+ * (d) Otherwise :
+ * - if it's a reference, treat it like case (1)
+ * - else if it's a path, treat it like case (2)
+ * - else: fail.
+ *
+ * case 4: git checkout <something> <paths>
+ *
+ * The first argument must not be ambiguous.
* - If it's *only* a reference, treat it like case (1).
* - If it's only a path, treat it like case (2).
* - else: fail.
if (!argc)
return 0;
- if (!strcmp(argv[0], "--")) /* case (2) */
- return 1;
-
arg = argv[0];
- has_dash_dash = (argc > 1) && !strcmp(argv[1], "--");
+ dash_dash_pos = -1;
+ for (i = 0; i < argc; i++) {
+ if (!strcmp(argv[i], "--")) {
+ dash_dash_pos = i;
+ break;
+ }
+ }
+ if (dash_dash_pos == 0)
+ return 1; /* case (2) */
+ else if (dash_dash_pos == 1)
+ has_dash_dash = 1; /* case (3) or (1) */
+ else if (dash_dash_pos >= 2)
+ die(_("only one reference expected, %d given."), dash_dash_pos);
if (!strcmp(arg, "-"))
arg = "@{-1}";
if (get_sha1_mb(arg, rev)) {
- if (has_dash_dash) /* case (1) */
- die(_("invalid reference: %s"), arg);
- if (dwim_new_local_branch_ok &&
- !check_filename(NULL, arg) &&
- argc == 1) {
+ /*
+ * Either case (3) or (4), with <something> not being
+ * a commit, or an attempt to use case (1) with an
+ * invalid ref.
+ *
+ * It's likely an error, but we need to find out if
+ * we should auto-create the branch, case (3).(b).
+ */
+ int recover_with_dwim = dwim_new_local_branch_ok;
+
+ if (check_filename(NULL, arg) && !has_dash_dash)
+ recover_with_dwim = 0;
+ /*
+ * Accept "git checkout foo" and "git checkout foo --"
+ * as candidates for dwim.
+ */
+ if (!(argc == 1 && !has_dash_dash) &&
+ !(argc == 2 && has_dash_dash))
+ recover_with_dwim = 0;
+
+ if (recover_with_dwim) {
const char *remote = unique_tracking_name(arg, rev);
- if (!remote)
- return argcount;
- *new_branch = arg;
- arg = remote;
- /* DWIMmed to create local branch */
- } else {
+ if (remote) {
+ *new_branch = arg;
+ arg = remote;
+ /* DWIMmed to create local branch, case (3).(b) */
+ } else {
+ recover_with_dwim = 0;
+ }
+ }
+
+ if (!recover_with_dwim) {
+ if (has_dash_dash)
+ die(_("invalid reference: %s"), arg);
return argcount;
}
}
/* not a commit */
*source_tree = parse_tree_indirect(rev);
} else {
- parse_commit(new->commit);
+ parse_commit_or_die(new->commit);
*source_tree = new->commit->tree;
}
if (!*source_tree) /* case (1): want a tree */
die(_("reference is not a tree: %s"), arg);
- if (!has_dash_dash) {/* case (3 -> 1) */
+ if (!has_dash_dash) {/* case (3).(d) -> (1) */
/*
* Do not complain the most common case
* git checkout branch
static int checkout_branch(struct checkout_opts *opts,
struct branch_info *new)
{
- if (opts->pathspec)
+ if (opts->pathspec.nr)
die(_("paths cannot be used with switching branches"));
if (opts->patch_mode)
N_("create and checkout a new branch")),
OPT_STRING('B', NULL, &opts.new_branch_force, N_("branch"),
N_("create/reset and checkout a branch")),
- OPT_BOOLEAN('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")),
- OPT_BOOLEAN(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")),
+ OPT_BOOL('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")),
+ OPT_BOOL(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")),
OPT_SET_INT('t', "track", &opts.track, N_("set upstream info for new branch"),
BRANCH_TRACK_EXPLICIT),
OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new branch"), N_("new unparented branch")),
OPT_SET_INT('3', "theirs", &opts.writeout_stage, N_("checkout their version for unmerged files"),
3),
OPT__FORCE(&opts.force, N_("force checkout (throw away local modifications)")),
- OPT_BOOLEAN('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")),
- OPT_BOOLEAN(0, "overwrite-ignore", &opts.overwrite_ignore, N_("update ignored files (default)")),
+ OPT_BOOL('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")),
+ OPT_BOOL(0, "overwrite-ignore", &opts.overwrite_ignore, N_("update ignored files (default)")),
OPT_STRING(0, "conflict", &conflict_style, N_("style"),
N_("conflict style (merge or diff3)")),
- OPT_BOOLEAN('p', "patch", &opts.patch_mode, N_("select hunks interactively")),
+ OPT_BOOL('p', "patch", &opts.patch_mode, N_("select hunks interactively")),
OPT_BOOL(0, "ignore-skip-worktree-bits", &opts.ignore_skipworktree,
N_("do not limit pathspecs to sparse entries only")),
- { OPTION_BOOLEAN, 0, "guess", &dwim_new_local_branch, NULL,
- N_("second guess 'git checkout no-such-branch'"),
- PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
+ OPT_HIDDEN_BOOL(0, "guess", &dwim_new_local_branch,
+ N_("second guess 'git checkout no-such-branch'")),
OPT_END(),
};
}
if (argc) {
- opts.pathspec = get_pathspec(prefix, argv);
+ parse_pathspec(&opts.pathspec, 0,
+ opts.patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0,
+ prefix, argv);
- if (!opts.pathspec)
+ if (!opts.pathspec.nr)
die(_("invalid path specification"));
/*
strbuf_release(&buf);
}
- if (opts.patch_mode || opts.pathspec)
+ if (opts.patch_mode || opts.pathspec.nr)
return checkout_paths(&opts, new.name);
else
return checkout_branch(&opts, &new);