Merge pull request #16503 from github/deprecate-2.19

Deprecate GHES 2.19 docs

Author: sarahs

lib/enterprise-server-releases.js

@@ -7,10 +7,10 @@ const dates = require('../lib/enterprise-dates.json')
 const supported = [
   '2.22',
   '2.21',
-  '2.20',
-  '2.19'
+  '2.20'
 ]
 const deprecated = [
+  '2.19',
   '2.18',
   '2.17',
   '2.16',

lib/is-archived-version.js

@@ -0,0 +1,27 @@
+const patterns = require('../lib/patterns')
+const { deprecated } = require('../lib/enterprise-server-releases')
+
+module.exports = function isArchivedVersion (req) {
+  // if this is an assets path, use the referrer
+  // if this is a docs path, use the req.path
+  const pathToCheck = patterns.assetPaths.test(req.path)
+    ? req.get('referrer')
+    : req.path
+
+  // ignore paths that don't have an enterprise version number
+  if (!(patterns.getEnterpriseVersionNumber.test(pathToCheck) || patterns.getEnterpriseServerNumber.test(pathToCheck))) {
+    return {}
+  }
+
+  // extract enterprise version from path, e.g. 2.16
+  const requestedVersion = pathToCheck.includes('enterprise-server@')
+    ? pathToCheck.match(patterns.getEnterpriseServerNumber)[1]
+    : pathToCheck.match(patterns.getEnterpriseVersionNumber)[1]
+
+  // bail if the request version is not deprecated
+  if (!deprecated.includes(requestedVersion)) {
+    return {}
+  }
+
+  return { isArchived: true, requestedVersion }
+}