'
+test_expect_success SYMLINKS 'do not read from beyond symbolic link' '
+ git reset --hard &&
+ mkdir -p arch/x86_64/dir &&
+ >arch/x86_64/dir/file &&
+ git add arch/x86_64/dir/file &&
+ echo line >arch/x86_64/dir/file &&
+ git diff >patch &&
+ git reset --hard &&
+
+ mkdir arch/i386/dir &&
+ >arch/i386/dir/file &&
+ ln -s ../i386/dir arch/x86_64/dir &&
+
+ test_must_fail git apply patch &&
+ test_must_fail git apply --cached patch &&
+ test_must_fail git apply --index patch
+
+'
+
+test_expect_success SYMLINKS 'do not follow symbolic link (setup)' '
+
+ rm -rf arch/i386/dir arch/x86_64/dir &&
+ git reset --hard &&
+ ln -s ../i386/dir arch/x86_64/dir &&
+ git add arch/x86_64/dir &&
+ git diff HEAD >add_symlink.patch &&
+ git reset --hard &&
+
+ mkdir arch/x86_64/dir &&
+ >arch/x86_64/dir/file &&
+ git add arch/x86_64/dir/file &&
+ git diff HEAD >add_file.patch &&
+ git diff -R HEAD >del_file.patch &&
+ git reset --hard &&
+ rm -fr arch/x86_64/dir &&
+
+ cat add_symlink.patch add_file.patch >patch &&
+ cat add_symlink.patch del_file.patch >tricky_del &&
+
+ mkdir arch/i386/dir
+'
+
+test_expect_success SYMLINKS 'do not follow symbolic link (same input)' '
+
+ # same input creates a confusing symbolic link
+ test_must_fail git apply patch 2>error-wt &&
+ test_i18ngrep "beyond a symbolic link" error-wt &&
+ test_path_is_missing arch/x86_64/dir &&
+ test_path_is_missing arch/i386/dir/file &&
+
+ test_must_fail git apply --index patch 2>error-ix &&
+ test_i18ngrep "beyond a symbolic link" error-ix &&
+ test_path_is_missing arch/x86_64/dir &&
+ test_path_is_missing arch/i386/dir/file &&
+ test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
+ test_must_fail git ls-files --error-unmatch arch/i386/dir &&
+
+ test_must_fail git apply --cached patch 2>error-ct &&
+ test_i18ngrep "beyond a symbolic link" error-ct &&
+ test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
+ test_must_fail git ls-files --error-unmatch arch/i386/dir &&
+
+ >arch/i386/dir/file &&
+ git add arch/i386/dir/file &&
+
+ test_must_fail git apply tricky_del &&
+ test_path_is_file arch/i386/dir/file &&
+
+ test_must_fail git apply --index tricky_del &&
+ test_path_is_file arch/i386/dir/file &&
+ test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
+ git ls-files --error-unmatch arch/i386/dir &&
+
+ test_must_fail git apply --cached tricky_del &&
+ test_must_fail git ls-files --error-unmatch arch/x86_64/dir &&
+ git ls-files --error-unmatch arch/i386/dir
+'
+
+test_expect_success SYMLINKS 'do not follow symbolic link (existing)' '
+
+ # existing symbolic link
+ git reset --hard &&
+ ln -s ../i386/dir arch/x86_64/dir &&
+ git add arch/x86_64/dir &&
+
+ test_must_fail git apply add_file.patch 2>error-wt-add &&
+ test_i18ngrep "beyond a symbolic link" error-wt-add &&
+ test_path_is_missing arch/i386/dir/file &&
+
+ mkdir arch/i386/dir &&
+ >arch/i386/dir/file &&
+ test_must_fail git apply del_file.patch 2>error-wt-del &&
+ test_i18ngrep "beyond a symbolic link" error-wt-del &&
+ test_path_is_file arch/i386/dir/file &&
+ rm arch/i386/dir/file &&
+
+ test_must_fail git apply --index add_file.patch 2>error-ix-add &&
+ test_i18ngrep "beyond a symbolic link" error-ix-add &&
+ test_path_is_missing arch/i386/dir/file &&
+ test_must_fail git ls-files --error-unmatch arch/i386/dir &&
+
+ test_must_fail git apply --cached add_file.patch 2>error-ct-file &&
+ test_i18ngrep "beyond a symbolic link" error-ct-file &&
+ test_must_fail git ls-files --error-unmatch arch/i386/dir
+'
+
test_done