feat: Bundle ContractCase core runtime

Author: TimothyJones

copy-proto.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+set -eu
+
+# Copies proto files from the main repo, assumed to be ../contract-case
+
+MAIN_REPO_LOCATION=../contract-case
+
+CONNECTOR_LOCATION="$MAIN_REPO_LOCATION/packages/case-connector"
+
+cp "$CONNECTOR_LOCATION/proto/contract_case_stream.proto" src/main/proto
+cp "$CONNECTOR_LOCATION/package/"* src/main/resources/io/contract_testing/contractcase/client/server

install-connector.sh

@@ -0,0 +1,60 @@
+package io.contract_testing.contractcase.client.server;
+
+import io.contract_testing.contractcase.ContractCaseCoreError;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+class ConnectorExtractor {
+
+  private static final String CASE_CONNECTOR_FILENAME = "case-connector.js";
+
+  /**
+   * Extracts a local copy of the contract case bundle from the jar's resources to a temporary
+   * directory that will be deleted on jvm exit.
+   *
+   * @return The path to the extracted contract case bundle
+   */
+  static String extractCaseConnector() {
+    final var localCopy = createTemporaryDirectory().resolve(CASE_CONNECTOR_FILENAME);
+
+    copyResource(CASE_CONNECTOR_FILENAME, localCopy);
+
+    localCopy.toFile().deleteOnExit();
+
+    return localCopy.toString();
+
+  }
+
+  private static Path createTemporaryDirectory() {
+    try {
+      final var directory = Files.createTempDirectory("contract-case-connector");
+
+      directory.toFile().deleteOnExit();
+
+      return directory;
+    } catch (IOException e) {
+      throw new ContractCaseCoreError(
+          "Unable to create temporary directory for ContractCase Connector executable",
+          e
+      );
+    }
+  }
+
+  private static void copyResource(final String resourceName, final Path target) {
+    try (InputStream inputStream = ConnectorExtractor.class.getResourceAsStream(resourceName)) {
+      if (inputStream == null) {
+        throw new ContractCaseCoreError(
+            "The resource input stream was null, and it's not supposed to be");
+      }
+      Files.copy(inputStream, target);
+    } catch (IOException e) {
+      throw new ContractCaseCoreError(
+          "Unable to extract ContractCase Connector executable",
+          e
+      );
+    }
+  }
+
+}

src/main/java/io/contract_testing/contractcase/client/server/ConnectorExtractor.java

@@ -70,8 +70,7 @@ private synchronized void startRuntimeIfNeeded() {
 
     final List<String> serverStartCommand = List.of(
         "node",
-        // TODO: Generate this path instead
-        "/Users/home/office/contract-case/contract-case/node_modules/.bin/case-connector"
+        ConnectorExtractor.extractCaseConnector()
     );
 
     try {