config: disallow relative include paths from blobs

diff --git a/t/t1305-config-include.sh b/t/t1305-config-include.sh
index a70707620f146d3fce69f77e08cae3a47253f157..6edd38b39a0b758b8007c1d58b858c9e3b533928 100755 (executable)
--- a/t/t1305-config-include.sh
+++ b/t/t1305-config-include.sh
@@ -122,6 +122,22 @@ test_expect_success 'relative includes from command line fail' '
        test_must_fail git -c include.path=one config test.one
 '
 
+test_expect_success 'absolute includes from blobs work' '
+       echo "[test]one = 1" >one &&
+       echo "[include]path=$(pwd)/one" >blob &&
+       blob=$(git hash-object -w blob) &&
+       echo 1 >expect &&
+       git config --blob=$blob test.one >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'relative includes from blobs fail' '
+       echo "[test]one = 1" >one &&
+       echo "[include]path=one" >blob &&
+       blob=$(git hash-object -w blob) &&
+       test_must_fail git config --blob=$blob test.one
+'
+
 test_expect_success 'include cycles are detected' '
        cat >.gitconfig <<-\EOF &&
        [test]value = gitconfig