fixes issue where dagger hands when input directory does not exist

Signed-off-by: Richard Jones <richard@dagger.io>

tests/plan.bats

@@ -44,6 +44,13 @@ setup() {
   "$DAGGER" --europa up ./plan/inputs/directories/exists.cue
 }
 
+@test "plan/inputs/directories not exists" {
+  cd "$TESTDIR"
+  run "$DAGGER" --europa up ./plan/inputs/directories/not_exists.cue
+	assert_failure
+	assert_output --partial 'tests/fasdfsdfs" does not exist'
+}
+
 @test "plan/inputs/directories conflicting values" {
   cd "$TESTDIR"
   run "$DAGGER" --europa up ./plan/inputs/directories/conflicting_values.cue

tests/plan/inputs/directories/not_exists.cue

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"alpha.dagger.io/europa/dagger/engine"
+)
+
+engine.#Plan & {
+	// should fail because path does not exist locally
+	inputs: directories: test: path: "./fasdfsdfs"
+	actions: verify: engine.#ReadFile & {
+		input: inputs.directories.test.contents
+		path:  "test.txt"
+	} & {
+		contents: "local directory"
+	}
+}