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| author | Shawn Pearce <spearce@spearce.org> | 2006-09-25 01:24:38 -0400 |
|---|---|---|
| committer | Junio C Hamano <junkio@cox.net> | 2006-09-27 00:43:50 -0700 |
| commit | 5a03e7f25334a6bf1dbbfdb9830d41de5b8f0d7f (patch) | |
| tree | fff03fbd7d75adef66d4b1cc4f7cd04b4edfe2d0 | |
| parent | 4a0641b7cf833644b286b56bb57d66b5538e4418 (diff) | |
| download | git-5a03e7f25334a6bf1dbbfdb9830d41de5b8f0d7f.tar.gz git-5a03e7f25334a6bf1dbbfdb9830d41de5b8f0d7f.tar.xz | |
Allow git-checkout when on a non-existant branch.
I've seen some users get into situtations where their HEAD
symbolic-ref is pointing at a non-existant ref. (Sometimes this
happens during clone when the remote repository lacks a 'master'
branch.) If this happens the user is unable to use git-checkout
to switch branches as there is no prior commit to merge from.
So instead of giving the user low-level errors about how HEAD
can't be resolved and how not a single revision was given change
the type of checkout to be a force and go through with the user's
request anyway.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
| -rwxr-xr-x | git-checkout.sh | 9 | ||||
| -rwxr-xr-x | t/t7201-co.sh | 9 |
2 files changed, 17 insertions, 1 deletions
diff --git a/git-checkout.sh b/git-checkout.sh index 580a9e8a2..dd477245f 100755 --- a/git-checkout.sh +++ b/git-checkout.sh @@ -4,8 +4,8 @@ USAGE='[-f] [-b <new_branch>] [-m] [<branch>] [<paths>...]' SUBDIRECTORY_OK=Sometimes . git-sh-setup -old=$(git-rev-parse HEAD) old_name=HEAD +old=$(git-rev-parse --verify $old_name 2>/dev/null) new= new_name= force= @@ -139,6 +139,13 @@ fi die "git checkout: to checkout the requested commit you need to specify a name for a new branch which is created and switched to" +if [ "X$old" = X ] +then + echo "warning: You do not appear to currently be on a branch." >&2 + echo "warning: Forcing checkout of $new_name." >&2 + force=1 +fi + if [ "$force" ] then git-read-tree --reset -u $new diff --git a/t/t7201-co.sh b/t/t7201-co.sh index b64e8b7d7..085d4a096 100755 --- a/t/t7201-co.sh +++ b/t/t7201-co.sh @@ -31,6 +31,15 @@ test_expect_success setup ' git checkout master ' +test_expect_success "checkout from non-existing branch" ' + + git checkout -b delete-me master && + rm .git/refs/heads/delete-me && + test refs/heads/delete-me = "$(git symbolic-ref HEAD)" && + git checkout master && + test refs/heads/master = "$(git symbolic-ref HEAD)" +' + test_expect_success "checkout with dirty tree without -m" ' fill 0 1 2 3 4 5 >one && |