fix: copy_to_directory exposes output in runfiles (#10)

lib/private/copy_to_directory.bzl

@@ -131,7 +131,10 @@ def _copy_to_directory_impl(ctx):
     else:
         _copy_to_dir_bash(ctx, ctx.files.srcs, output)
     return [
-        DefaultInfo(files = depset([output])),
+        DefaultInfo(
+            files = depset([output]),
+            runfiles = ctx.runfiles([output]),
+        ),
     ]
 
 copy_to_directory_lib = struct(

lib/tests/copy_to_directory/BUILD.bazel

@@ -129,3 +129,16 @@ diff_test(
     file1 = "case_5",
     file2 = ":expected_5",
 )
+
+# Case 6: directory used in a test's runfiles
+
+copy_to_directory(
+    name = "case_6",
+    srcs = case_srcs,
+)
+
+sh_test(
+    name = "case_6_test",
+    srcs = ["case6.sh"],
+    data = ["case_6"],
+)

lib/tests/copy_to_directory/case6.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+set -o errexit -o nounset
+
+cd $TEST_SRCDIR
+cd $TEST_WORKSPACE
+cd $(dirname $TEST_BINARY)
+cd case_6
+
+# A path that should be in the directory we have in data[]
+path="f/f2/f"
+if [ ! -f "$path" ]; then
+    echo >&2 "Expected $path to exist in runfiles"
+    exit 1
+fi