difftool --dir-diff: symlink all files matching the working tree

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 9c3e997b9d6be69467a78f9ff8b1ff746be8e9b6..db3d3d6bd1d8a979ee757bb7faca0adec853485b 100755 (executable)
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -76,6 +76,17 @@ test_expect_success PERL 'custom commands' '
        test "$diff" = "branch"
 '
 
+# Ensures that a custom difftool.<tool>.cmd overrides built-ins
+test_expect_success PERL 'custom commands override built-ins' '
+       restore_test_defaults &&
+       git config difftool.defaults.cmd "cat \$REMOTE" &&
+
+       diff=$(git difftool --tool defaults --no-prompt branch) &&
+       test "$diff" = "master" &&
+
+       git config --unset difftool.defaults.cmd
+'
+
 # Ensures that git-difftool ignores bogus --tool values
 test_expect_success PERL 'difftool ignores bad --tool values' '
        diff=$(git difftool --no-prompt --tool=bad-tool branch)
@@ -359,6 +370,28 @@ test_expect_success PERL 'difftool --dir-diff' '
        echo "$diff" | stdin_contains file
 '
 
+write_script .git/CHECK_SYMLINKS <<\EOF
+for f in file file2 sub/sub
+do
+       echo "$f"
+       readlink "$2/$f"
+done >actual
+EOF
+
+test_expect_success PERL,SYMLINKS 'difftool --dir-diff --symlink without unstaged changes' '
+       cat >expect <<-EOF &&
+       file
+       $(pwd)/file
+       file2
+       $(pwd)/file2
+       sub/sub
+       $(pwd)/sub/sub
+       EOF
+       git difftool --dir-diff --symlink \
+               --extcmd "./.git/CHECK_SYMLINKS" branch HEAD &&
+       test_cmp actual expect
+'
+
 test_expect_success PERL 'difftool --dir-diff ignores --prompt' '
        diff=$(git difftool --dir-diff --prompt --extcmd ls branch) &&
        echo "$diff" | stdin_contains sub &&