config: correct file reading order in read_early_config()

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 25241f40967ef1fb547771e64c69927de2f101ce..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 &&
@@ -428,7 +447,7 @@ run_dir_diff_test 'difftool --dir-diff branch from subdirectory' '
                git difftool --dir-diff $symlinks --extcmd ls branch >output &&
                # "sub" must only exist in "right"
                # "file" and "file2" must be listed in both "left" and "right"
-               grep sub output > sub-output &&
+               grep sub output >sub-output &&
                test_line_count = 1 sub-output &&
                grep file"$" output >file-output &&
                test_line_count = 2 file-output &&
@@ -591,6 +610,7 @@ test_expect_success 'difftool --no-symlinks detects conflict ' '
 '
 
 test_expect_success 'difftool properly honors gitlink and core.worktree' '
+       test_when_finished rm -rf submod/ule &&
        git submodule add ./. submod/ule &&
        test_config -C submod/ule diff.tool checktrees &&
        test_config -C submod/ule difftool.checktrees.cmd '\''
@@ -600,11 +620,13 @@ test_expect_success 'difftool properly honors gitlink and core.worktree' '
                cd submod/ule &&
                echo good >expect &&
                git difftool --tool=checktrees --dir-diff HEAD~ >actual &&
-               test_cmp expect actual
+               test_cmp expect actual &&
+               rm -f expect actual
        )
 '
 
 test_expect_success SYMLINKS 'difftool --dir-diff symlinked directories' '
+       test_when_finished git reset --hard &&
        git init dirlinks &&
        (
                cd dirlinks &&
@@ -623,4 +645,64 @@ test_expect_success SYMLINKS 'difftool --dir-diff symlinked directories' '
        )
 '
 
+test_expect_success SYMLINKS 'difftool --dir-diff handles modified symlinks' '
+       test_when_finished git reset --hard &&
+       touch b &&
+       ln -s b c &&
+       git add b c &&
+       test_tick &&
+       git commit -m initial &&
+       touch d &&
+       rm c &&
+       ln -s d c &&
+       cat >expect <<-EOF &&
+               b
+               c
+
+               c
+       EOF
+       git difftool --symlinks --dir-diff --extcmd ls >output &&
+       grep -v ^/ output >actual &&
+       test_cmp expect actual &&
+
+       git difftool --no-symlinks --dir-diff --extcmd ls >output &&
+       grep -v ^/ output >actual &&
+       test_cmp expect actual &&
+
+       # The left side contains symlink "c" that points to "b"
+       test_config difftool.cat.cmd "cat \$LOCAL/c" &&
+       printf "%s\n" b >expect &&
+
+       git difftool --symlinks --dir-diff --tool cat >actual &&
+       test_cmp expect actual &&
+
+       git difftool --symlinks --no-symlinks --dir-diff --tool cat >actual &&
+       test_cmp expect actual &&
+
+       # The right side contains symlink "c" that points to "d"
+       test_config difftool.cat.cmd "cat \$REMOTE/c" &&
+       printf "%s\n" d >expect &&
+
+       git difftool --symlinks --dir-diff --tool cat >actual &&
+       test_cmp expect actual &&
+
+       git difftool --no-symlinks --dir-diff --tool cat >actual &&
+       test_cmp expect actual &&
+
+       # Deleted symlinks
+       rm -f c &&
+       cat >expect <<-EOF &&
+               b
+               c
+
+       EOF
+       git difftool --symlinks --dir-diff --extcmd ls >output &&
+       grep -v ^/ output >actual &&
+       test_cmp expect actual &&
+
+       git difftool --no-symlinks --dir-diff --extcmd ls >output &&
+       grep -v ^/ output >actual &&
+       test_cmp expect actual
+'
+
 test_done