Enforce documentation.yml toc coverage via ESLint

entry_types/scrolled/package/.eslintrc.js

@@ -48,6 +48,14 @@ module.exports = {
           "patterns": ["**/entryState/**", "../**/entryState"]
         }]
       }
+    },
+    {
+      // Directories passed to documentation.js in
+      // .github/workflows/docs.yml.
+      "files": ["src/**/*.js", "spec/support/**/*.js"],
+      "rules": {
+        "documented-in-toc": "error"
+      }
     }
   ]
 };

entry_types/scrolled/package/documentation.yml

@@ -5,6 +5,7 @@ toc:
     children:
       - frontend_contentElementTypes
       - frontend_widgetTypes
+      - frontend_contentElementErrorBoundary
   - name: Editor API
     description: |
       Main entry point of editor API to register new content element types.
@@ -45,6 +46,7 @@ toc:
       - useLegalInfo
       - useMediaMuted
       - usePortraitOrientation
+      - usePrivacyLink
       - useShareProviders
       - useShareUrl
       - useTheme
@@ -60,6 +62,7 @@ toc:
       - normalizeSeed
       - renderInEntry
       - renderInContentElement
+      - renderInEntryWithContentElementLifecycle
       - renderHookInEntry
   - name: Storybook Support
     description: |

entry_types/scrolled/package/package.json

@@ -86,7 +86,7 @@
   },
   "scripts": {
     "test": "jest",
-    "lint": "eslint",
+    "lint": "eslint --rulesdir ../../../node_modules/pageflow/config/eslint-rules",
     "start-storybook": "storybook dev --port 8001",
     "build-storybook": "storybook build -o .storybook/out",
     "snapshot": "storybook build --quiet -o .storybook/out && PERCY_TOKEN=${PERCY_TOKEN:-$PT} percy storybook .storybook/out"

entry_types/scrolled/package/src/frontend/api/index.js

@@ -12,7 +12,8 @@ export const api = {
    * typeName (string), configuration (object), fallback (function returning
    * default UI), and children (content element).
    *
-   * @property {React.Component} contentElementErrorBoundary
+   * @name frontend_contentElementErrorBoundary
+   * @type {React.Component}
    */
   contentElementErrorBoundary: undefined
 }

package/.eslintrc.js

@@ -46,6 +46,18 @@ module.exports = {
     {
       "files": ["spec/**/*.js", "src/testHelpers/**/*.js"],
       "extends": ["plugin:jest/recommended"]
+    },
+    {
+      // Directories passed to documentation.js in
+      // .github/workflows/docs.yml.
+      "files": [
+        "src/editor/**/*.js",
+        "src/ui/**/*.js",
+        "src/testHelpers/**/*.js"
+      ],
+      "rules": {
+        "documented-in-toc": "error"
+      }
     }
   ]
 };

package/config/eslint-rules/documented-in-toc.js

@@ -0,0 +1,125 @@
+const fs = require('fs');
+const path = require('path');
+const yaml = require('js-yaml');
+
+// JSDoc comments on these are either nested under another item or
+// excluded from the generated docs, so they do not need toc entries.
+const skippedTags = /@(private|internal|ignore|memberof)\b/;
+
+module.exports = {
+  meta: {
+    type: 'suggestion',
+    docs: {
+      description:
+        'Ensure JSDoc documented top level items are listed in the toc ' +
+        'of documentation.yml. Otherwise they render at an arbitrary ' +
+        'spot at the end of the generated docs.'
+    },
+    schema: []
+  },
+
+  create(context) {
+    const config = findTocConfig(path.dirname(context.getFilename()));
+
+    if (!config) {
+      return {};
+    }
+
+    const sourceCode = context.getSourceCode();
+
+    return {
+      Program(program) {
+        program.body.forEach(statement => {
+          const comment = jsdocCommentBefore(statement);
+
+          if (!comment || skippedTags.test(comment.value)) {
+            return;
+          }
+
+          const name = documentedName(comment, statement);
+
+          if (name && !config.names.has(name)) {
+            context.report({
+              loc: comment.loc,
+              message:
+                `'${name}' has a JSDoc comment, but is not listed in the ` +
+                `toc in ${config.relativePath}. Add it to the section ` +
+                'where it should show up in the generated docs.'
+            });
+          }
+        });
+      }
+    };
+
+    function jsdocCommentBefore(statement) {
+      const comments = sourceCode.getCommentsBefore(statement);
+      const comment = comments[comments.length - 1];
+
+      return comment &&
+             comment.type === 'Block' &&
+             comment.value.startsWith('*') ? comment : null;
+    }
+  }
+};
+
+function documentedName(comment, statement) {
+  const tagMatch = comment.value.match(/@(?:name|alias)\s+([\w.#]+)/);
+
+  if (tagMatch) {
+    return tagMatch[1];
+  }
+
+  return declaredName(statement);
+}
+
+function declaredName(statement) {
+  switch (statement.type) {
+  case 'ExportNamedDeclaration':
+  case 'ExportDefaultDeclaration':
+    return statement.declaration && declaredName(statement.declaration);
+  case 'FunctionDeclaration':
+  case 'ClassDeclaration':
+    return statement.id && statement.id.name;
+  case 'VariableDeclaration':
+    return statement.declarations[0].id.type === 'Identifier' ?
+           statement.declarations[0].id.name : null;
+  default:
+    return null;
+  }
+}
+
+const configCache = new Map();
+
+function findTocConfig(directory) {
+  if (configCache.has(directory)) {
+    return configCache.get(directory);
+  }
+
+  const configPath = path.join(directory, 'documentation.yml');
+  let config;
+
+  if (fs.existsSync(configPath)) {
+    config = loadTocConfig(configPath);
+  }
+  else {
+    const parent = path.dirname(directory);
+    config = parent === directory ? null : findTocConfig(parent);
+  }
+
+  configCache.set(directory, config);
+  return config;
+}
+
+function loadTocConfig(configPath) {
+  const toc = yaml.safeLoad(fs.readFileSync(configPath, 'utf8')).toc || [];
+  const names = new Set();
+
+  toc.forEach(section =>
+    (section.children || []).forEach(child => names.add(child))
+  );
+
+  return {
+    names,
+    relativePath: path.relative(process.cwd(), configPath)
+  };
+}

package/documentation.yml

@@ -50,13 +50,15 @@ toc:
       - EditConfigurationView
       - ReferenceInputView
       - FileInputView
+      - OembedUrlInputView
 
   - name: Editor - Misc Views
     description: |
       General purpose Backbone views and mixins exported by `pageflow/editor`.
     children:
       - modelLifecycleTrackingView
       - DropDownButtonView
+      - DestroyMenuItem
       - ListView
       - ModelThumbnailView
 
@@ -132,4 +134,5 @@ toc:
     children:
       - factories
       - setupGlobals
+      - useFakeFeatures
       - useFakeTranslations

package/package.json

@@ -21,7 +21,7 @@
   },
   "scripts": {
     "test": "jest",
-    "lint": "eslint"
+    "lint": "eslint --rulesdir config/eslint-rules"
   },
   "dependencies": {
     "backbone-events-standalone": "^0.2.7",