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Diffstat (limited to 'builtin')
-rw-r--r--builtin/checkout.c189
1 files changed, 112 insertions, 77 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 78abaeb..b403012 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -217,7 +217,8 @@ static int checkout_merged(int pos, struct checkout *state)
return status;
}
-static int checkout_paths(const struct checkout_opts *opts)
+static int checkout_paths(const struct checkout_opts *opts,
+ const char *revision)
{
int pos;
struct checkout state;
@@ -229,7 +230,35 @@ static int checkout_paths(const struct checkout_opts *opts)
int stage = opts->writeout_stage;
int merge = opts->merge;
int newfd;
- struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
+ struct lock_file *lock_file;
+
+ if (opts->track != BRANCH_TRACK_UNSPECIFIED)
+ die(_("'%s' cannot be used with updating paths"), "--track");
+
+ if (opts->new_branch_log)
+ die(_("'%s' cannot be used with updating paths"), "-l");
+
+ if (opts->force && opts->patch_mode)
+ die(_("'%s' cannot be used with updating paths"), "-f");
+
+ if (opts->force_detach)
+ die(_("'%s' cannot be used with updating paths"), "--detach");
+
+ if (opts->merge && opts->patch_mode)
+ die(_("'%s' cannot be used with %s"), "--merge", "--patch");
+
+ if (opts->force && opts->merge)
+ die(_("'%s' cannot be used with %s"), "-f", "-m");
+
+ if (opts->new_branch)
+ die(_("Cannot update paths and switch to branch '%s' at the same time."),
+ opts->new_branch);
+
+ if (opts->patch_mode)
+ return run_add_interactive(revision, "--patch=checkout",
+ opts->pathspec);
+
+ lock_file = xcalloc(1, sizeof(struct lock_file));
newfd = hold_locked_index(lock_file, 1);
if (read_cache_preload(opts->pathspec) < 0)
@@ -763,11 +792,6 @@ static int git_checkout_config(const char *var, const char *value, void *cb)
return git_xmerge_config(var, value, NULL);
}
-static int interactive_checkout(const char *revision, const char **pathspec)
-{
- return run_add_interactive(revision, "--patch=checkout", pathspec);
-}
-
struct tracking_name_data {
const char *name;
char *remote;
@@ -930,6 +954,51 @@ static int switch_unborn_to_new_branch(const struct checkout_opts *opts)
return status;
}
+static int checkout_branch(struct checkout_opts *opts,
+ struct branch_info *new)
+{
+ if (opts->pathspec)
+ die(_("paths cannot be used with switching branches"));
+
+ if (opts->patch_mode)
+ die(_("'%s' cannot be used with switching branches"),
+ "--patch");
+
+ if (opts->writeout_stage)
+ die(_("'%s' cannot be used with switching branches"),
+ "--ours/--theirs");
+
+ if (opts->force && opts->merge)
+ die(_("'%s' cannot be used with '%s'"), "-f", "-m");
+
+ if (opts->force_detach && opts->new_branch)
+ die(_("'%s' cannot be used with '%s'"),
+ "--detach", "-b/-B/--orphan");
+
+ if (opts->new_orphan_branch) {
+ if (opts->track != BRANCH_TRACK_UNSPECIFIED)
+ die(_("'%s' cannot be used with '%s'"), "--orphan", "-t");
+ } else if (opts->force_detach) {
+ if (opts->track != BRANCH_TRACK_UNSPECIFIED)
+ die(_("'%s' cannot be used with '%s'"), "--detach", "-t");
+ } else if (opts->track == BRANCH_TRACK_UNSPECIFIED)
+ opts->track = git_branch_track;
+
+ if (new->name && !new->commit)
+ die(_("Cannot switch branch to a non-commit '%s'"),
+ new->name);
+
+ if (!new->commit && opts->new_branch) {
+ unsigned char rev[20];
+ int flag;
+
+ if (!read_ref_full("HEAD", rev, 0, &flag) &&
+ (flag & REF_ISSYMREF) && is_null_sha1(rev))
+ return switch_unborn_to_new_branch(opts);
+ }
+ return switch_branches(opts, new);
+}
+
int cmd_checkout(int argc, const char **argv, const char *prefix)
{
struct checkout_opts opts;
@@ -976,26 +1045,27 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, options, checkout_usage,
PARSE_OPT_KEEP_DASHDASH);
- /* we can assume from now on new_branch = !new_branch_force */
- if (opts.new_branch && opts.new_branch_force)
- die(_("-B cannot be used with -b"));
+ if (conflict_style) {
+ opts.merge = 1; /* implied */
+ git_xmerge_config("merge.conflictstyle", conflict_style, NULL);
+ }
- /* copy -B over to -b, so that we can just check the latter */
+ if ((!!opts.new_branch + !!opts.new_branch_force + !!opts.new_orphan_branch) > 1)
+ die(_("-b, -B and --orphan are mutually exclusive"));
+
+ /*
+ * From here on, new_branch will contain the branch to be checked out,
+ * and new_branch_force and new_orphan_branch will tell us which one of
+ * -b/-B/--orphan is being used.
+ */
if (opts.new_branch_force)
opts.new_branch = opts.new_branch_force;
- if (opts.patch_mode && (opts.track > 0 || opts.new_branch
- || opts.new_branch_log || opts.merge || opts.force
- || opts.force_detach))
- die (_("--patch is incompatible with all other options"));
-
- if (opts.force_detach && (opts.new_branch || opts.new_orphan_branch))
- die(_("--detach cannot be used with -b/-B/--orphan"));
- if (opts.force_detach && 0 < opts.track)
- die(_("--detach cannot be used with -t"));
+ if (opts.new_orphan_branch)
+ opts.new_branch = opts.new_orphan_branch;
- /* --track without -b should DWIM */
- if (0 < opts.track && !opts.new_branch) {
+ /* --track without -b/-B/--orphan should DWIM */
+ if (opts.track != BRANCH_TRACK_UNSPECIFIED && !opts.new_branch) {
const char *argv0 = argv[0];
if (!argc || !strcmp(argv0, "--"))
die (_("--track needs a branch name"));
@@ -1009,22 +1079,6 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
opts.new_branch = argv0 + 1;
}
- if (opts.new_orphan_branch) {
- if (opts.new_branch)
- die(_("--orphan and -b|-B are mutually exclusive"));
- if (opts.track > 0)
- die(_("--orphan cannot be used with -t"));
- opts.new_branch = opts.new_orphan_branch;
- }
-
- if (conflict_style) {
- opts.merge = 1; /* implied */
- git_xmerge_config("merge.conflictstyle", conflict_style, NULL);
- }
-
- if (opts.force && opts.merge)
- die(_("git checkout: -f and -m are incompatible"));
-
/*
* Extract branch name from command line arguments, so
* all that is left is pathspecs.
@@ -1052,62 +1106,43 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
argc -= n;
}
- if (opts.track == BRANCH_TRACK_UNSPECIFIED)
- opts.track = git_branch_track;
-
if (argc) {
opts.pathspec = get_pathspec(prefix, argv);
if (!opts.pathspec)
die(_("invalid path specification"));
- if (opts.patch_mode)
- return interactive_checkout(new.name, opts.pathspec);
-
- /* Checkout paths */
- if (opts.new_branch) {
- if (argc == 1) {
- die(_("git checkout: updating paths is incompatible with switching branches.\nDid you intend to checkout '%s' which can not be resolved as commit?"), argv[0]);
- } else {
- die(_("git checkout: updating paths is incompatible with switching branches."));
- }
- }
+ /*
+ * Try to give more helpful suggestion.
+ * new_branch && argc > 1 will be caught later.
+ */
+ if (opts.new_branch && argc == 1)
+ die(_("Cannot update paths and switch to branch '%s' at the same time.\n"
+ "Did you intend to checkout '%s' which can not be resolved as commit?"),
+ opts.new_branch, argv[0]);
if (opts.force_detach)
- die(_("git checkout: --detach does not take a path argument"));
+ die(_("git checkout: --detach does not take a path argument '%s'"),
+ argv[0]);
if (1 < !!opts.writeout_stage + !!opts.force + !!opts.merge)
- die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\nchecking out of the index."));
-
- return checkout_paths(&opts);
+ die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\n"
+ "checking out of the index."));
}
- if (opts.patch_mode)
- return interactive_checkout(new.name, NULL);
-
if (opts.new_branch) {
struct strbuf buf = STRBUF_INIT;
- opts.branch_exists = validate_new_branchname(opts.new_branch, &buf,
- !!opts.new_branch_force,
- !!opts.new_branch_force);
+ opts.branch_exists =
+ validate_new_branchname(opts.new_branch, &buf,
+ !!opts.new_branch_force,
+ !!opts.new_branch_force);
strbuf_release(&buf);
}
- if (new.name && !new.commit) {
- die(_("Cannot switch branch to a non-commit."));
- }
- if (opts.writeout_stage)
- die(_("--ours/--theirs is incompatible with switching branches."));
-
- if (!new.commit && opts.new_branch) {
- unsigned char rev[20];
- int flag;
-
- if (!read_ref_full("HEAD", rev, 0, &flag) &&
- (flag & REF_ISSYMREF) && is_null_sha1(rev))
- return switch_unborn_to_new_branch(&opts);
- }
- return switch_branches(&opts, &new);
+ if (opts.patch_mode || opts.pathspec)
+ return checkout_paths(&opts, new.name);
+ else
+ return checkout_branch(&opts, &new);
}