1 files changed, 39 insertions, 0 deletions
diff --git a/app/assets/javascripts/vue_shared/components/source_viewer/plugins/utils/gemspec_linker.js b/app/assets/javascripts/vue_shared/components/source_viewer/plugins/utils/gemspec_linker.js
new file mode 100644
index 00000000000..35de8fd13d6
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/source_viewer/plugins/utils/gemspec_linker.js
@@ -0,0 +1,39 @@
+import { joinPaths } from '~/lib/utils/url_utility';
+import { GEM_URL } from '../../constants';
+import { createLink, generateHLJSOpenTag } from './dependency_linker_util';
+
+const methodRegex = '.*add_dependency.*|.*add_runtime_dependency.*|.*add_development_dependency.*';
+const openTagRegex = generateHLJSOpenTag('string', '(&.*;)');
+const closeTagRegex = '&.*</span>';
+
+const DEPENDENCY_REGEX = new RegExp(
+  /*
+   * Detects gemspec dependencies inside of content that is highlighted by Highlight.js
+   * Example: s.add_dependency(<span class="hljs-string">&#x27;rugged&#x27;</span>, <span class="hljs-string">&#x27;~&gt; 0.24.0&#x27;</span>)
+   *
+   * Group 1 (method)     :  s.add_dependency(
+   * Group 2 (delimiter)  :  &#x27;
+   * Group 3 (packageName):  rugged
+   * Group 4 (closeTag)   :  &#x27;</span>
+   * Group 5 (rest)       :  	, <span class="hljs-string">&#x27;~&gt; 0.24.0&#x27;</span>)
+   */
+  `(${methodRegex})${openTagRegex}(.*)(${closeTagRegex})(.*${closeTagRegex})`,
+  'gm',
+);
+
+const handleReplace = (method, delimiter, packageName, closeTag, rest) => {
+  // eslint-disable-next-line @gitlab/require-i18n-strings
+  const openTag = generateHLJSOpenTag('string linked', delimiter);
+  const href = joinPaths(GEM_URL, packageName);
+  const packageLink = createLink(href, packageName);
+
+  return `${method}${openTag}${packageLink}${closeTag}${rest}`;
+};
+
+export default (result) => {
+  return result.value.replace(
+    DEPENDENCY_REGEX,
+    (_, method, delimiter, packageName, closeTag, rest) =>
+      handleReplace(method, delimiter, packageName, closeTag, rest),
+  );
+};