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Diffstat (limited to 'builtin/checkout.c')
-rw-r--r--builtin/checkout.c70
1 files changed, 49 insertions, 21 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 2e1d2376d2..cb6bb76312 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -4,6 +4,7 @@
#include "lockfile.h"
#include "parse-options.h"
#include "refs.h"
+#include "object-store.h"
#include "commit.h"
#include "tree.h"
#include "tree-walk.h"
@@ -22,6 +23,7 @@
#include "resolve-undo.h"
#include "submodule-config.h"
#include "submodule.h"
+#include "advice.h"
static const char * const checkout_usage[] = {
N_("git checkout [<options>] <branch>"),
@@ -77,7 +79,7 @@ static int update_some(const struct object_id *oid, struct strbuf *base,
return READ_TREE_RECURSIVE;
len = base->len + strlen(pathname);
- ce = xcalloc(1, cache_entry_size(len));
+ ce = make_empty_cache_entry(&the_index, len);
oidcpy(&ce->oid, oid);
memcpy(ce->name, base->buf, base->len);
memcpy(ce->name + base->len, pathname, len - base->len);
@@ -96,7 +98,7 @@ static int update_some(const struct object_id *oid, struct strbuf *base,
if (ce->ce_mode == old->ce_mode &&
!oidcmp(&ce->oid, &old->oid)) {
old->ce_flags |= CE_UPDATE;
- free(ce);
+ discard_cache_entry(ce);
return 0;
}
}
@@ -230,11 +232,11 @@ static int checkout_merged(int pos, const struct checkout *state)
if (write_object_file(result_buf.ptr, result_buf.size, blob_type, &oid))
die(_("Unable to add merge result for '%s'"), path);
free(result_buf.ptr);
- ce = make_cache_entry(mode, oid.hash, path, 2, 0);
+ ce = make_transient_cache_entry(mode, &oid, path, 2);
if (!ce)
die(_("make_cache_entry failed for path '%s'"), path);
status = checkout_entry(ce, state, NULL);
- free(ce);
+ discard_cache_entry(ce);
return status;
}
@@ -378,7 +380,7 @@ static int checkout_paths(const struct checkout_opts *opts,
die(_("unable to write new index file"));
read_ref_full("HEAD", 0, &rev, NULL);
- head = lookup_commit_reference_gently(&rev, 1);
+ head = lookup_commit_reference_gently(the_repository, &rev, 1);
errs |= post_checkout_hook(head, head, 0);
return errs;
@@ -829,7 +831,7 @@ static int switch_branches(const struct checkout_opts *opts,
memset(&old_branch_info, 0, sizeof(old_branch_info));
old_branch_info.path = path_to_free = resolve_refdup("HEAD", 0, &rev, &flag);
if (old_branch_info.path)
- old_branch_info.commit = lookup_commit_reference_gently(&rev, 1);
+ old_branch_info.commit = lookup_commit_reference_gently(the_repository, &rev, 1);
if (!(flag & REF_ISSYMREF))
old_branch_info.path = NULL;
@@ -878,7 +880,8 @@ static int parse_branchname_arg(int argc, const char **argv,
int dwim_new_local_branch_ok,
struct branch_info *new_branch_info,
struct checkout_opts *opts,
- struct object_id *rev)
+ struct object_id *rev,
+ int *dwim_remotes_matched)
{
struct tree **source_tree = &opts->source_tree;
const char **new_branch = &opts->new_branch;
@@ -910,8 +913,10 @@ static int parse_branchname_arg(int argc, const char **argv,
* (b) If <something> is _not_ a commit, either "--" is present
* or <something> is not a path, no -t or -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.
+ * in one and only one remote (or if the branch exists on the
+ * remote named in checkout.defaultRemote), then this is a
+ * short-hand to fork local <something> from that
+ * remote-tracking branch.
*
* (c) Otherwise, if "--" is present, treat it like case (1).
*
@@ -972,7 +977,8 @@ static int parse_branchname_arg(int argc, const char **argv,
recover_with_dwim = 0;
if (recover_with_dwim) {
- const char *remote = unique_tracking_name(arg, rev);
+ const char *remote = unique_tracking_name(arg, rev,
+ dwim_remotes_matched);
if (remote) {
*new_branch = arg;
arg = remote;
@@ -1003,7 +1009,7 @@ static int parse_branchname_arg(int argc, const char **argv,
else
new_branch_info->path = NULL; /* not an existing branch */
- new_branch_info->commit = lookup_commit_reference_gently(rev, 1);
+ new_branch_info->commit = lookup_commit_reference_gently(the_repository, rev, 1);
if (!new_branch_info->commit) {
/* not a commit */
*source_tree = parse_tree_indirect(rev);
@@ -1109,6 +1115,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
struct branch_info new_branch_info;
char *conflict_style = NULL;
int dwim_new_local_branch = 1;
+ int dwim_remotes_matched = 0;
struct option options[] = {
OPT__QUIET(&opts.quiet, N_("suppress progress reporting")),
OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
@@ -1120,10 +1127,12 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
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('2', "ours", &opts.writeout_stage, N_("checkout our version for unmerged files"),
- 2),
- OPT_SET_INT('3', "theirs", &opts.writeout_stage, N_("checkout their version for unmerged files"),
- 3),
+ OPT_SET_INT_F('2', "ours", &opts.writeout_stage,
+ N_("checkout our version for unmerged files"),
+ 2, PARSE_OPT_NONEG),
+ OPT_SET_INT_F('3', "theirs", &opts.writeout_stage,
+ N_("checkout their version for unmerged files"),
+ 3, PARSE_OPT_NONEG),
OPT__FORCE(&opts.force, N_("force checkout (throw away local modifications)"),
PARSE_OPT_NOCOMPLETE),
OPT_BOOL('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")),
@@ -1189,12 +1198,12 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
if (opts.track != BRANCH_TRACK_UNSPECIFIED && !opts.new_branch) {
const char *argv0 = argv[0];
if (!argc || !strcmp(argv0, "--"))
- die (_("--track needs a branch name"));
+ die(_("--track needs a branch name"));
skip_prefix(argv0, "refs/", &argv0);
skip_prefix(argv0, "remotes/", &argv0);
argv0 = strchr(argv0, '/');
if (!argv0 || !argv0[1])
- die (_("Missing branch name; try -b"));
+ die(_("missing branch name; try -b"));
opts.new_branch = argv0 + 1;
}
@@ -1219,7 +1228,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
opts.track == BRANCH_TRACK_UNSPECIFIED &&
!opts.new_branch;
int n = parse_branchname_arg(argc, argv, dwim_ok,
- &new_branch_info, &opts, &rev);
+ &new_branch_info, &opts, &rev,
+ &dwim_remotes_matched);
argv += n;
argc -= n;
}
@@ -1261,8 +1271,26 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
}
UNLEAK(opts);
- if (opts.patch_mode || opts.pathspec.nr)
- return checkout_paths(&opts, new_branch_info.name);
- else
+ if (opts.patch_mode || opts.pathspec.nr) {
+ int ret = checkout_paths(&opts, new_branch_info.name);
+ if (ret && dwim_remotes_matched > 1 &&
+ advice_checkout_ambiguous_remote_branch_name)
+ advise(_("'%s' matched more than one remote tracking branch.\n"
+ "We found %d remotes with a reference that matched. So we fell back\n"
+ "on trying to resolve the argument as a path, but failed there too!\n"
+ "\n"
+ "If you meant to check out a remote tracking branch on, e.g. 'origin',\n"
+ "you can do so by fully qualifying the name with the --track option:\n"
+ "\n"
+ " git checkout --track origin/<name>\n"
+ "\n"
+ "If you'd like to always have checkouts of an ambiguous <name> prefer\n"
+ "one remote, e.g. the 'origin' remote, consider setting\n"
+ "checkout.defaultRemote=origin in your config."),
+ argv[0],
+ dwim_remotes_matched);
+ return ret;
+ } else {
return checkout_branch(&opts, &new_branch_info);
+ }
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 00:43:18 +0000