[PATCH] HOME must be set before calling git-init when creating test repositories

[Alex Riesen <raa.lkml@gmail.com>]

Otherwise the created test repositories will be affected by users ~/.gitconfig.
For example, setting core.logAllrefupdates in users config will make all
calls to "git config --unset core.logAllrefupdates" fail which will break
the first test which uses the statement and expects it to succeed.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
---

Jeff King, Sat, Mar 26, 2011 15:11:18 +0100:
> On Sat, Mar 26, 2011 at 11:08:06AM +0100, Alex Riesen wrote:
> 
> > >> Oh, it does. That's why the second patch (prefixed "[PATCH, fixed]").
> > >> It makes HOME to be "$(pwd)/somewhere-else", or precisely:
> > >>
> > >>   HOME="$(pwd)"/"$test"
> > >>   export HOME
> > >
> > > What happens to people who has non-empty "$root", iow, their $test begins
> > > with '/'?
> > 
> > It's still under $test then.
> 
> No, it's totally broken. $(pwd)/$test is nonsensical. The code right
> above your change guarantees that $test is an absolute path, either
> because the user gave us an absolute $root or because it has been
> prepended with $TEST_DIRECTORY (which itself comes from $(pwd)).

I see. I mistook "$root" for the root of a filesystem, not the variable in
test-lib.sh. How about this, than?

 t/test-lib.sh |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/t/test-lib.sh b/t/test-lib.sh
index 7cc9a52..2b24c3d 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -984,14 +984,15 @@ rm -fr "$test" || {
 	exit 1
 }
 
+HOME="$(pwd)/$test"
+test -n "$root" && HOME="$test"
+export HOME
+
 test_create_repo "$test"
 # Use -P to resolve symlinks in our working directory so that the cwd
 # in subprocesses like git equals our $PWD (for pathname comparisons).
 cd -P "$test" || exit 1
 
-HOME=$(pwd)
-export HOME
-
 this_test=${0##*/}
 this_test=${this_test%%-*}
 for skp in $GIT_SKIP_TESTS
-- 
1.7.4.1.471.gab01