fix: allow gitlabUrl without scheme (#362)

Fixes #360
 
Co-authored-by: Julian Beisert <julianbeisert@googlemail.com>
Co-authored-by: Florian Greinacher <florian@greinacher.de>

lib/resolve-config.js

@@ -63,7 +63,10 @@ function shouldProxy(gitlabUrl, NO_PROXY) {
     ws: 80,
     wss: 443,
   };
-  const parsedUrl = typeof gitlabUrl === 'string' ? new URL(gitlabUrl) : gitlabUrl || {};
+  const parsedUrl =
+    typeof gitlabUrl === 'string' && (gitlabUrl.startsWith('http://') || gitlabUrl.startsWith('https://'))
+      ? new URL(gitlabUrl)
+      : gitlabUrl || {};
   let proto = parsedUrl.protocol;
   let hostname = parsedUrl.host;
   let {port} = parsedUrl;

test/resolve-config.test.js

@@ -91,6 +91,52 @@ test('Returns user config via alternative environment variables', t => {
   );
 });
 
+test('Returns user config via alternative environment variables with https proxy and no proto scheme set', t => {
+  const gitlabToken = 'TOKEN';
+  const gitlabUrl = 'host.com';
+  const gitlabApiPathPrefix = '/api/prefix';
+  const assets = ['file.js'];
+  // Testing with 8080 port because HttpsProxyAgent ignores 80 port with http protocol
+  const proxyUrl = 'http://proxy.test:8443';
+
+  const result = resolveConfig(
+    {assets},
+    {
+      env: {
+        GL_TOKEN: gitlabToken,
+        GL_URL: gitlabUrl,
+        GL_PREFIX: gitlabApiPathPrefix,
+        HTTPS_PROXY: proxyUrl,
+      },
+    }
+  );
+
+  t.deepEqual(result.proxy, {});
+});
+
+test('Returns user config via alternative environment variables with http proxy and no proto scheme set', t => {
+  const gitlabToken = 'TOKEN';
+  const gitlabUrl = 'host.com';
+  const gitlabApiPathPrefix = '/api/prefix';
+  const assets = ['file.js'];
+  // Testing with 8080 port because HttpsProxyAgent ignores 80 port with http protocol
+  const proxyUrl = 'http://proxy.test:8080';
+
+  const result = resolveConfig(
+    {assets},
+    {
+      env: {
+        GL_TOKEN: gitlabToken,
+        GL_URL: gitlabUrl,
+        GL_PREFIX: gitlabApiPathPrefix,
+        HTTP_PROXY: proxyUrl,
+      },
+    }
+  );
+
+  t.deepEqual(result.proxy, {});
+});
+
 test('Returns user config via alternative environment variables with http proxy', t => {
   const gitlabToken = 'TOKEN';
   const gitlabUrl = 'http://host.com';