alias: use the early config machinery to expand aliases

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 0e7f30db2d9116ec5d40b02612c97f765f3a4414..7f09867478c408cddee6b60639bfdf7c845421d8 100755 (executable)
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -393,6 +393,25 @@ test_expect_success 'setup change in subdirectory' '
        git commit -m "modified both"
 '
 
+test_expect_success 'difftool -d with growing paths' '
+       a=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
+       git init growing &&
+       (
+               cd growing &&
+               echo "test -f \"\$2/b\"" | write_script .git/test-for-b.sh &&
+               one=$(printf 1 | git hash-object -w --stdin) &&
+               two=$(printf 2 | git hash-object -w --stdin) &&
+               git update-index --add \
+                       --cacheinfo 100644,$one,$a --cacheinfo 100644,$two,b &&
+               tree1=$(git write-tree) &&
+               git update-index --add \
+                       --cacheinfo 100644,$two,$a --cacheinfo 100644,$one,b &&
+               tree2=$(git write-tree) &&
+               git checkout -- $a &&
+               git difftool -d --extcmd .git/test-for-b.sh $tree1 $tree2
+       )
+'
+
 run_dir_diff_test () {
        test_expect_success "$1 --no-symlinks" "
                symlinks=--no-symlinks &&