From: Junio C Hamano Date: Thu, 29 Mar 2007 08:02:50 +0000 (-0700) Subject: checkout: allow detaching to HEAD even when switching to the tip of a branch X-Git-Tag: v1.5.2-rc0~78^2 X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=3e0318a3613ae8e89dcb1fc39d909145e64287b9;p=git.git checkout: allow detaching to HEAD even when switching to the tip of a branch You cannot currently checkout the tip of an existing branch without moving to the branch. This allows you to detach your HEAD and place it at such a commit, with: $ git checkout master^0 Signed-off-by: Junio C Hamano --- diff --git a/git-checkout.sh b/git-checkout.sh index a7390e808..deb0a9a3c 100755 --- a/git-checkout.sh +++ b/git-checkout.sh @@ -170,7 +170,7 @@ describe_detached_head () { } } -if test -z "$branch$newbranch" && test "$new" != "$old" +if test -z "$branch$newbranch" && test "$new_name" != "$old_name" then detached="$new" if test -n "$oldbranch" && test -z "$quiet" @@ -180,7 +180,7 @@ If you want to create a new branch from this checkout, you may do so (now or later) by using -b with the checkout command again. Example: git checkout -b " fi -elif test -z "$oldbranch" +elif test -z "$oldbranch" && test "$new" != "$old" then describe_detached_head 'Previous HEAD position was' "$old" fi diff --git a/t/t7201-co.sh b/t/t7201-co.sh index 867bbd26c..5fa6a4557 100755 --- a/t/t7201-co.sh +++ b/t/t7201-co.sh @@ -3,7 +3,20 @@ # Copyright (c) 2006 Junio C Hamano # -test_description='git-checkout tests.' +test_description='git-checkout tests. + +Creates master, forks renamer and side branches from it. +Test switching across them. + + ! [master] Initial A one, A two + * [renamer] Renamer R one->uno, M two + ! [side] Side M one, D two, A three + --- + + [side] Side M one, D two, A three + * [renamer] Renamer R one->uno, M two + +*+ [master] Initial A one, A two + +' . ./test-lib.sh @@ -129,4 +142,52 @@ test_expect_success 'checkout -m with merge conflict' ' ! test -s current ' +test_expect_success 'checkout to detach HEAD' ' + + git checkout -f renamer && git clean && + git checkout renamer^ && + H=$(git rev-parse --verify HEAD) && + M=$(git show-ref -s --verify refs/heads/master) && + test "z$H" = "z$M" && + if git symbolic-ref HEAD >/dev/null 2>&1 + then + echo "OOPS, HEAD is still symbolic???" + false + else + : happy + fi +' + +test_expect_success 'checkout to detach HEAD with branchname^' ' + + git checkout -f master && git clean && + git checkout renamer^ && + H=$(git rev-parse --verify HEAD) && + M=$(git show-ref -s --verify refs/heads/master) && + test "z$H" = "z$M" && + if git symbolic-ref HEAD >/dev/null 2>&1 + then + echo "OOPS, HEAD is still symbolic???" + false + else + : happy + fi +' + +test_expect_success 'checkout to detach HEAD with HEAD^0' ' + + git checkout -f master && git clean && + git checkout HEAD^0 && + H=$(git rev-parse --verify HEAD) && + M=$(git show-ref -s --verify refs/heads/master) && + test "z$H" = "z$M" && + if git symbolic-ref HEAD >/dev/null 2>&1 + then + echo "OOPS, HEAD is still symbolic???" + false + else + : happy + fi +' + test_done