Re: [PATCH] packed_ref_store: handle a packed-refs file that is a symlink

On Wed, Jul 26 2017, Michael Haggerty wrote:

[...]
+test_expect_success 'pack symlinked packed-refs' '
+	# First make sure that symlinking works when reading:
+	git update-ref refs/heads/loosy refs/heads/master &&
+	git for-each-ref >all-refs-before &&
+	mv .git/packed-refs .git/my-deviant-packed-refs &&
+	ln -s my-deviant-packed-refs .git/packed-refs &&
+	git for-each-ref >all-refs-linked &&
+	test_cmp all-refs-before all-refs-linked &&
+	git pack-refs --all --prune &&
+	git for-each-ref >all-refs-packed &&
+	test_cmp all-refs-before all-refs-packed &&
+	test -h .git/packed-refs &&
+	test "$(readlink .git/packed-refs)" = "my-deviant-packed-refs"
+'

FWIW this broke tests on AIX because we can't assume readlink(1) exists
at all. See d2addc3b96 (t7800: readlink may not be available,
2016-05-31) for a workaround.