Drop support for user-defined runner

Author: mxmason

manifest.yml

@@ -8,9 +8,8 @@ inputs:
   - name: failWithIssues
     default: true
   - name: ignoreDirectories
+    default: []
     required: false
-  - name: runners
-    default: ['axe']
   - name: standard
     default: 'WCAG2AA'
   - name: testMode

netlify.toml

@@ -12,6 +12,5 @@
     # # optional config
     failWithIssues = false # true by default
 
-    standard = 'WCAG2A'
     # # Developer only
     # debugMode = true # extra logging for plugin developers

plugin/config.js

@@ -1,39 +1,26 @@
-const AXE = 'axe';
-const HTMLCS = 'htmlcs';
-const INSTALLED_RUNNERS = [AXE, HTMLCS];
-
-const DEFAULT_RUNNERS = [AXE];
-const DEFAULT_STANDARD = 'WCAG2AA';
 const DEFAULT_CHECK_PATHS = ['/'];
 const DEFAULT_FAIL_WITH_ISSUES = true;
 const DEFAULT_IGNORE_DIRECTORIES = [];
 
+const PA11Y_DEFAULT_STANDARD = 'WCAG2AA';
+const PA11Y_RUNNERS = ['axe'];
 const PA11Y_USER_AGENT = 'netlify-plugin-a11y';
 
-const isInvalidRunner = runners => (
-  (runners && !Array.isArray(runners) || !runners.every(val => INSTALLED_RUNNERS.includes(val)))
-);
-
 const getConfiguration = ({
   constants: { PUBLISH_DIR },
-  inputs: { checkPaths, debugMode, ignoreDirectories, failWithIssues, runners, standard }
+  inputs: { checkPaths, debugMode, ignoreDirectories, failWithIssues, standard }
 }) => {
 
-  runners = runners || DEFAULT_RUNNERS;
-
-  if (isInvalidRunner(runners)) {
-    throw new Error(`Invalid value for \`runners\` input. Runners must be \`${AXE}\` or \`${HTMLCS}\`.`);
-  }
   return {
     absolutePublishDir: PUBLISH_DIR || process.env.PUBLISH_DIR,
     checkPaths: checkPaths || DEFAULT_CHECK_PATHS,
     debugMode: debugMode || false,
     ignoreDirectories: ignoreDirectories || DEFAULT_IGNORE_DIRECTORIES,
     failWithIssues: failWithIssues !== undefined ? failWithIssues : DEFAULT_FAIL_WITH_ISSUES,
     pa11yOpts: {
-      runners,
+      runners: PA11Y_RUNNERS,
       userAgent: PA11Y_USER_AGENT,
-      standard: standard || DEFAULT_STANDARD,
+      standard: standard || PA11Y_DEFAULT_STANDARD,
     }
   }
 }

plugin/index.js

@@ -19,8 +19,8 @@ module.exports = {
     } = getConfiguration({ constants, inputs })
     const htmlFilePaths = await pluginCore.generateFilePaths({
       absolutePublishDir,
+      ignoreDirectories,
       fileAndDirPaths: checkPaths,
-      ignoreDirectories: ignoreDirectories,
     });
     if (debugMode) {
       console.log({ htmlFilePaths });