Draft: Iss #10 - Add support for private GL token when fetching specs

• Iss #10 - Add support for private GL token when fetching specs

This change set is 1 half of the changeset, as currently the Jenkins build doesn't allow for tokens to be embedded into the build. We will need tokens to be enabled to finish this feature.

src/index.js

@@ -31,14 +31,16 @@ const artificialSpecData = { items: [] };
  * @param {*} externalLocation the URL for the raw openapi spec file.
  * @param {*} localPath the location where the downloaded spec should be saved
  */
-async function pullExternalSpec(externalLocation, localPath) {
+async function pullExternalSpec(externalLocation, localPath, isPrivate = false) {
   let retries = 0;
   // retry 3 times before giving up
   while (retries < 3) {
     try {
       fs.writeFileSync(
         localPath,
-        await fetch(externalLocation).then(response => {
+        await fetch(externalLocation, {headers: {
+          "PRIVATE-TOKEN": isPrivate ? process.env.GITLAB_TOKEN : ''
+        }}).then(response => {
           if (!response.ok) {
             throw new Error(`HTTP error! Status: ${response.status}`);
           }
@@ -122,7 +124,7 @@ async function run() {
     console.log(`Retrieving openapi spec for ${specDisplayName}...`);
     // prepare the spec, fetching remote specs or copying the spec for processing
     if (isExternalSpec(specLocation)) {
-      await pullExternalSpec(specLocation, outputSpecLocation);
+      await pullExternalSpec(specLocation, outputSpecLocation, currentSpecDefinition['private'] === true);
     } else {
       fs.copyFileSync(potentialLocalSpecLocation, outputSpecLocation);
       console.log(`Copied local spec for ${specDisplayName} to output dir`);