Change working dir and operate on .

main.js

@@ -183,13 +183,22 @@ async function main() {
         ])
         core.endGroup()
 
+        core.startGroup("Check sourceDirectory")
+        await exec.exec("docker", [
+            "exec",
+            container,
+            "ls", "-la", sourceDirectory
+        ])
+        core.endGroup()
+
         if (imageTag != "trusty") {
             core.startGroup("Install build dependencies")
             await exec.exec("docker", [
                 "exec",
                 container,
                 "bash", "-c",
-                `apt-get build-dep -yq -t '${imageTag}' '${sourceDirectory}' || apt-get build-dep -yq '${sourceDirectory}'`
+//                `apt-get build-dep -yq -t '${imageTag}' '${sourceDirectory}' || apt-get build-dep -yq '${sourceDirectory}'`
+                `cd '${sourceDirectory}' && apt-get build-dep -yq -t '${imageTag}' . || apt-get build-dep -yq .`
             ])
             core.endGroup()
         }