diff options
| -rw-r--r-- | Documentation/git-clone.txt | 7 | ||||
| -rw-r--r-- | builtin-clone.c | 75 | ||||
| -rwxr-xr-x | t/t5706-clone-branch.sh | 68 |
3 files changed, 122 insertions, 28 deletions
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt index 2e0785e1de..f23100e509 100644 --- a/Documentation/git-clone.txt +++ b/Documentation/git-clone.txt @@ -127,6 +127,13 @@ objects from the source repository into a pack in the cloned repository. Instead of using the remote name 'origin' to keep track of the upstream repository, use <name>. +--branch <name>:: +-b <name>:: + Instead of pointing the newly created HEAD to the branch pointed + to by the cloned repositoroy's HEAD, point to <name> branch + instead. In a non-bare repository, this is the branch that will + be checked out. + --upload-pack <upload-pack>:: -u <upload-pack>:: When given, and the repository to clone from is accessed diff --git a/builtin-clone.c b/builtin-clone.c index 0f231d8af5..ad048085f3 100644 --- a/builtin-clone.c +++ b/builtin-clone.c @@ -41,6 +41,7 @@ static int option_quiet, option_no_checkout, option_bare, option_mirror; static int option_local, option_no_hardlinks, option_shared, option_recursive; static char *option_template, *option_reference, *option_depth; static char *option_origin = NULL; +static char *option_branch = NULL; static char *option_upload_pack = "git-upload-pack"; static int option_verbose; @@ -67,6 +68,8 @@ static struct option builtin_clone_options[] = { "reference repository"), OPT_STRING('o', "origin", &option_origin, "branch", "use <branch> instead of 'origin' to track upstream"), + OPT_STRING('b', "branch", &option_branch, "branch", + "checkout <branch> instead of the remote's HEAD"), OPT_STRING('u', "upload-pack", &option_upload_pack, "path", "path to git-upload-pack on the remote"), OPT_STRING(0, "depth", &option_depth, "depth", @@ -353,7 +356,9 @@ int cmd_clone(int argc, const char **argv, const char *prefix) const char *repo_name, *repo, *work_tree, *git_dir; char *path, *dir; int dest_exists; - const struct ref *refs, *head_points_at, *remote_head, *mapped_refs; + const struct ref *refs, *remote_head, *mapped_refs; + const struct ref *remote_head_points_at; + const struct ref *our_head_points_at; struct strbuf key = STRBUF_INIT, value = STRBUF_INIT; struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT; struct transport *transport = NULL; @@ -525,11 +530,31 @@ int cmd_clone(int argc, const char **argv, const char *prefix) mapped_refs = write_remote_refs(refs, refspec, reflog_msg.buf); remote_head = find_ref_by_name(refs, "HEAD"); - head_points_at = guess_remote_head(remote_head, mapped_refs, 0); + remote_head_points_at = + guess_remote_head(remote_head, mapped_refs, 0); + + if (option_branch) { + struct strbuf head = STRBUF_INIT; + strbuf_addstr(&head, src_ref_prefix); + strbuf_addstr(&head, option_branch); + our_head_points_at = + find_ref_by_name(mapped_refs, head.buf); + strbuf_release(&head); + + if (!our_head_points_at) { + warning("Remote branch %s not found in " + "upstream %s, using HEAD instead", + option_branch, option_origin); + our_head_points_at = remote_head_points_at; + } + } + else + our_head_points_at = remote_head_points_at; } else { warning("You appear to have cloned an empty repository."); - head_points_at = NULL; + our_head_points_at = NULL; + remote_head_points_at = NULL; remote_head = NULL; option_no_checkout = 1; if (!option_bare) @@ -537,41 +562,35 @@ int cmd_clone(int argc, const char **argv, const char *prefix) "refs/heads/master"); } - if (head_points_at) { - /* Local default branch link */ - create_symref("HEAD", head_points_at->name, NULL); + if (remote_head_points_at && !option_bare) { + struct strbuf head_ref = STRBUF_INIT; + strbuf_addstr(&head_ref, branch_top.buf); + strbuf_addstr(&head_ref, "HEAD"); + create_symref(head_ref.buf, + remote_head_points_at->peer_ref->name, + reflog_msg.buf); + } + if (our_head_points_at) { + /* Local default branch link */ + create_symref("HEAD", our_head_points_at->name, NULL); if (!option_bare) { - struct strbuf head_ref = STRBUF_INIT; - const char *head = head_points_at->name; - - if (!prefixcmp(head, "refs/heads/")) - head += 11; - - /* Set up the initial local branch */ - - /* Local branch initial value */ + const char *head = skip_prefix(our_head_points_at->name, + "refs/heads/"); update_ref(reflog_msg.buf, "HEAD", - head_points_at->old_sha1, + our_head_points_at->old_sha1, NULL, 0, DIE_ON_ERR); - - strbuf_addstr(&head_ref, branch_top.buf); - strbuf_addstr(&head_ref, "HEAD"); - - /* Remote branch link */ - create_symref(head_ref.buf, - head_points_at->peer_ref->name, - reflog_msg.buf); - install_branch_config(0, head, option_origin, - head_points_at->name); + our_head_points_at->name); } } else if (remote_head) { /* Source had detached HEAD pointing somewhere. */ - if (!option_bare) + if (!option_bare) { update_ref(reflog_msg.buf, "HEAD", remote_head->old_sha1, NULL, REF_NODEREF, DIE_ON_ERR); + our_head_points_at = remote_head; + } } else { /* Nothing to checkout out */ if (!option_no_checkout) @@ -605,7 +624,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix) opts.src_index = &the_index; opts.dst_index = &the_index; - tree = parse_tree_indirect(remote_head->old_sha1); + tree = parse_tree_indirect(our_head_points_at->old_sha1); parse_tree(tree); init_tree_desc(&t, tree->buffer, tree->size); unpack_trees(1, &t, &opts); diff --git a/t/t5706-clone-branch.sh b/t/t5706-clone-branch.sh new file mode 100755 index 0000000000..f3f9a76056 --- /dev/null +++ b/t/t5706-clone-branch.sh @@ -0,0 +1,68 @@ +#!/bin/sh + +test_description='clone --branch option' +. ./test-lib.sh + +check_HEAD() { + echo refs/heads/"$1" >expect && + git symbolic-ref HEAD >actual && + test_cmp expect actual +} + +check_file() { + echo "$1" >expect && + test_cmp expect file +} + +test_expect_success 'setup' ' + mkdir parent && + (cd parent && git init && + echo one >file && git add file && git commit -m one && + git checkout -b two && + echo two >file && git add file && git commit -m two && + git checkout master) +' + +test_expect_success 'vanilla clone chooses HEAD' ' + git clone parent clone && + (cd clone && + check_HEAD master && + check_file one + ) +' + +test_expect_success 'clone -b chooses specified branch' ' + git clone -b two parent clone-two && + (cd clone-two && + check_HEAD two && + check_file two + ) +' + +test_expect_success 'clone -b sets up tracking' ' + (cd clone-two && + echo origin >expect && + git config branch.two.remote >actual && + echo refs/heads/two >>expect && + git config branch.two.merge >>actual && + test_cmp expect actual + ) +' + +test_expect_success 'clone -b does not munge remotes/origin/HEAD' ' + (cd clone-two && + echo refs/remotes/origin/master >expect && + git symbolic-ref refs/remotes/origin/HEAD >actual && + test_cmp expect actual + ) +' + +test_expect_success 'clone -b with bogus branch chooses HEAD' ' + git clone -b bogus parent clone-bogus && + (cd clone-bogus && + check_HEAD master && + check_file one + ) +' + +test_done |