Re: [PATCH v3 2/3] perf: make the tests work in worktrees

>> This breaks perf for the non-worktree case:
>
> Oh drats!
>
>> lsr@debian:~/src/git/t/perf$ make
>> rm -rf test-results
>> ./run
>> === Running 12 tests in this tree ===
>> cp: cannot stat '.git/objects': No such file or directory
>> error: failed to copy repository '/home/lsr/src/git/t/..' to '/tmp/trash directory.p0000-perf-lib-sanity'
>> cp: cannot stat '.git/objects': No such file or directory
>> error: failed to copy repository '/home/lsr/src/git/t/..' to '/tmp/trash directory.p0001-rev-list'
>> ...
>> 
>> Here's a fix:
>> 
>> -- >8 --
>> Subject: perf: make the tests work without a worktree
>> 
>> In regular repositories $source_git and $objects_dir contain relative
>> paths based on $source.  Go there to allow cp to resolve them.
>> 
>> Signed-off-by: Rene Scharfe <l.s.r@web.de>
>> ---
>>  t/perf/perf-lib.sh | 1 +
>>  1 file changed, 1 insertion(+)
>> 
>> diff --git a/t/perf/perf-lib.sh b/t/perf/perf-lib.sh
>> index 5ef1744..1888790 100644
>> --- a/t/perf/perf-lib.sh
>> +++ b/t/perf/perf-lib.sh
>> @@ -84,6 +84,7 @@ test_perf_create_repo_from () {
>>  	objects_dir="$(git -C "$source" rev-parse --git-path objects)"
>>  	mkdir -p "$repo/.git"
>>  	(
>> +		cd "$source" &&
>
> I fear that interacts badly with the `cd "$repo"` I introduced later
> (replacing a `cd ..`)...