chore(github): add workflow and action for automating review labels

.github/workflows/add-review-labels.yml

@@ -0,0 +1,11 @@
+name: Add Review Labels
+on: pull_request_review
+jobs:
+  reviewer:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: ./actions/add-review-labels
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          AUTO_LABEL_USERS: 'asudoh,emyarod,tw15egan'

actions/add-review-labels/.npmignore

@@ -0,0 +1,4 @@
+**/__mocks__/**
+**/__tests__/**
+**/examples/**
+**/tasks/**

actions/add-review-labels/Dockerfile

@@ -0,0 +1,6 @@
+FROM node:slim
+
+WORKDIR /usr/src/action
+COPY . .
+RUN yarn install --production
+ENTRYPOINT ["node", "/usr/src/action/index.js"]

actions/add-review-labels/action.yml

@@ -0,0 +1,12 @@
+name: Add review labels
+description: A custom action that adds review labels to a Pull Request
+inputs:
+  GITHUB_TOKEN:
+    description: A GitHub token to execute GitHub tasks
+    required: true
+  AUTO_LABEL_USERS:
+    description:
+      Opt-in users who want the ready to merge label automatically applied
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

actions/add-review-labels/index.js

@@ -0,0 +1,162 @@
+/**
+ * Copyright IBM Corp. 2020, 2020
+ *
+ * This source code is licensed under the Apache-2.0 license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+const github = require('@actions/github');
+const core = require('@actions/core');
+
+async function run() {
+  const { context } = github;
+  const token = core.getInput('GITHUB_TOKEN', {
+    required: true,
+  });
+  const autoLabelUsers = core.getInput('AUTO_LABEL_USERS').split(',');
+  const octokit = new github.GitHub(token);
+  const { pull_request: pullRequest, repository, review } = context.payload;
+  const { state, draft } = pullRequest;
+
+  // We only want to work with Pull Requests that are marked as open
+  if (state !== 'open') {
+    return;
+  }
+
+  // We only want to work with Pull Requests that are not draft PRs
+  if (draft) {
+    return;
+  }
+
+  const {
+    data: permissionLevel,
+  } = await octokit.repos.getCollaboratorPermissionLevel({
+    owner: repository.owner.login,
+    repo: repository.name,
+    username: review.user.login,
+  });
+
+  // If the reviewer doesn't have one of the following permission levels
+  // then ignore the event
+  const acceptedPermissionLevels = new Set(['admin', 'write']);
+  if (!acceptedPermissionLevels.has(permissionLevel.permission)) {
+    return;
+  }
+
+  // If the review was not an approval then we'll ignore the event
+  if (review.state !== 'approved') {
+    return;
+  }
+
+  const { data: allReviews } = await octokit.pulls.listReviews({
+    owner: repository.owner.login,
+    repo: repository.name,
+    pull_number: pullRequest.number,
+    per_page: 100,
+  });
+
+  // The `listReviews` endpoint will return all of the reviews for the pull
+  // request. We only care about the most recent reviews so we'll go through the
+  // list and get the most recent review for each reviewer
+  const reviewers = {};
+  const reviews = [];
+
+  // Process reviews in reverse order since they are listed from oldest to newest
+  for (const review of allReviews.reverse()) {
+    const { author_association: association, user } = review;
+    // If we've already saved a review for this user we already have the most
+    // recent review
+    if (reviewers[user.login]) {
+      continue;
+    }
+
+    // If the author of the review is not a collaborator we ignore it
+    if (association !== 'COLLABORATOR') {
+      continue;
+    }
+
+    reviewers[user.login] = true;
+    reviews.push(review);
+  }
+
+  const approved = reviews.filter(review => {
+    return review.state === 'APPROVED';
+  });
+
+  const additionalReviewLabel = 'status: one more review 👀';
+  const readyForReviewLabel = 'status: ready for review 👀';
+  const readyToMergeLabel = 'status: ready to merge 🎉';
+  const visualReviewLabel = 'status: visual review 🔍';
+  const contentReviewLabel = 'status: content review ✍️';
+  const needsReviewLabels = new Set([visualReviewLabel, contentReviewLabel]);
+
+  if (approved.length > 0) {
+    const hasReadyLabel = pullRequest.labels.find(label => {
+      return label.name === readyForReviewLabel;
+    });
+    if (hasReadyLabel) {
+      await octokit.issues.removeLabel({
+        owner: repository.owner.login,
+        repo: repository.name,
+        issue_number: pullRequest.number,
+        name: readyForReviewLabel,
+      });
+    }
+  }
+
+  if (approved.length === 1) {
+    const hasAdditionalReviewLabel = pullRequest.labels.find(label => {
+      return label.name === additionalReviewLabel;
+    });
+    if (!hasAdditionalReviewLabel) {
+      await octokit.issues.addLabels({
+        owner: repository.owner.login,
+        repo: repository.name,
+        issue_number: pullRequest.number,
+        labels: [additionalReviewLabel],
+      });
+    }
+    return;
+  }
+
+  if (approved.length >= 2) {
+    const hasAdditionalReviewLabel = pullRequest.labels.find(label => {
+      return label.name === additionalReviewLabel;
+    });
+    if (hasAdditionalReviewLabel) {
+      await octokit.issues.removeLabel({
+        owner: repository.owner.login,
+        repo: repository.name,
+        issue_number: pullRequest.number,
+        name: additionalReviewLabel,
+      });
+    }
+
+    const allNeedsReviewLabels = pullRequest.labels.filter(label => {
+      return needsReviewLabels.has(label.name);
+    });
+    if (allNeedsReviewLabels.length > 0) {
+      return;
+    }
+
+    const shouldAutoLabel = autoLabelUsers.find(user => {
+      return user === pullRequest.user.login;
+    });
+    if (shouldAutoLabel) {
+      await octokit.issues.addLabels({
+        owner: repository.owner.login,
+        repo: repository.name,
+        issue_number: pullRequest.number,
+        labels: [readyToMergeLabel],
+      });
+    }
+    return;
+  }
+}
+
+run().catch(error => {
+  console.log(error);
+  process.exit(1);
+});

actions/add-review-labels/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "@carbon/actions-add-review-labels",
+  "private": true,
+  "version": "0.0.0",
+  "license": "Apache-2.0",
+  "main": "index.js",
+  "repository": "https://github.com/carbon-design-system/carbon/tree/master/actions/add-review-labels",
+  "bugs": "https://github.com/carbon-design-system/carbon/issues",
+  "keywords": [
+    "ibm",
+    "carbon",
+    "carbon-design-system",
+    "components",
+    "react"
+  ],
+  "dependencies": {
+    "@actions/core": "^1.2.3",
+    "@actions/github": "^2.1.1"
+  }
+}

package.json

@@ -9,7 +9,8 @@
   },
   "workspaces": {
     "packages": [
-      "packages/*"
+      "packages/*",
+      "actions/*"
     ],
     "nohoist": []
   },
@@ -20,7 +21,7 @@
     "doctoc": "doctoc --title '## Table of Contents'",
     "format": "prettier --write '**/*.{js,md,scss,ts}' '!**/{build,es,lib,storybook,ts,umd}/**'",
     "format:diff": "prettier --list-different '**/*.{js,md,scss,ts}' '!**/{build,es,lib,storybook,ts,umd}/**' '!packages/components/**'",
-    "lint": "eslint packages",
+    "lint": "eslint packages actions",
     "lint:docs": "alex 'docs/**/*.md' -q",
     "lint:styles": "stylelint '**/*.{css,scss}' --config ./packages/stylelint-config-elements",
     "sync": "carbon-cli sync",

packages/cli/package.json

@@ -26,6 +26,7 @@
     "chalk": "^2.4.2",
     "child-process-promise": "^2.2.1",
     "clipboardy": "^2.1.0",
+    "fast-glob": "^3.2.2",
     "fs-extra": "^8.0.1",
     "inquirer": "^6.4.1",
     "prettier": "^1.19.1",

packages/cli/src/commands/sync/package.js

@@ -10,7 +10,7 @@
 const fs = require('fs-extra');
 
 const REPO_URL_BASE =
-  'https://github.com/carbon-design-system/carbon/tree/master/packages';
+  'https://github.com/carbon-design-system/carbon/tree/master';
 
 // This is our default set of keywords to include in each `package.json` packageJson
 const DEFAULT_KEYWORDS = [
@@ -71,39 +71,44 @@ function sortFields(a, b) {
 
 function run({ packagePaths }) {
   return Promise.all(
-    packagePaths.map(async ({ basename, packageJsonPath, packageJson }) => {
-      packageJson.repository = `${REPO_URL_BASE}/${basename}`;
-      packageJson.bugs =
-        'https://github.com/carbon-design-system/carbon/issues';
-      packageJson.license = 'Apache-2.0';
-      packageJson.publishConfig = {
-        access: 'public',
-      };
+    packagePaths.map(
+      async ({ packageJsonPath, packageJson, packageFolder }) => {
+        packageJson.repository = `${REPO_URL_BASE}/${packageFolder}`;
+        packageJson.bugs =
+          'https://github.com/carbon-design-system/carbon/issues';
+        packageJson.license = 'Apache-2.0';
 
-      if (Array.isArray(packageJson.keywords)) {
-        const keywordsToAdd = DEFAULT_KEYWORDS.filter(keyword => {
-          return packageJson.keywords.indexOf(keyword) === -1;
-        });
-        if (keywordsToAdd.length > 0) {
-          packageJson.keywords = [...packageJson.keywords, ...keywordsToAdd];
+        if (!packageJson.private) {
+          packageJson.publishConfig = {
+            access: 'public',
+          };
+        }
+
+        if (Array.isArray(packageJson.keywords)) {
+          const keywordsToAdd = DEFAULT_KEYWORDS.filter(keyword => {
+            return packageJson.keywords.indexOf(keyword) === -1;
+          });
+          if (keywordsToAdd.length > 0) {
+            packageJson.keywords = [...packageJson.keywords, ...keywordsToAdd];
+          }
+        } else {
+          packageJson.keywords = DEFAULT_KEYWORDS;
         }
-      } else {
-        packageJson.keywords = DEFAULT_KEYWORDS;
-      }
 
-      // Construct our new packageJson packageJson with sorted fields
-      const file = Object.keys(packageJson)
-        .sort(sortFields)
-        .reduce(
-          (acc, key) => ({
-            ...acc,
-            [key]: packageJson[key],
-          }),
-          {}
-        );
+        // Construct our new packageJson packageJson with sorted fields
+        const file = Object.keys(packageJson)
+          .sort(sortFields)
+          .reduce(
+            (acc, key) => ({
+              ...acc,
+              [key]: packageJson[key],
+            }),
+            {}
+          );
 
-      await fs.writeJson(packageJsonPath, file, { spaces: 2 });
-    })
+        await fs.writeJson(packageJsonPath, file, { spaces: 2 });
+      }
+    )
   );
 }
 

packages/cli/src/workspace.js

@@ -9,42 +9,33 @@
 
 const execa = require('execa');
 const fs = require('fs-extra');
+const glob = require('fast-glob');
 const path = require('path');
 const packageJson = require('../../../package.json');
 
-const denylist = new Set(['.DS_Store']);
-const PACKAGES_DIR = path.resolve(__dirname, '../..');
-const packagePaths = fs
-  .readdirSync(PACKAGES_DIR)
-  .filter(basename => {
-    const filename = path.join(PACKAGES_DIR, basename);
-    if (denylist.has(filename)) {
-      return false;
-    }
-
-    const stats = fs.lstatSync(filename);
-    if (!stats.isDirectory()) {
-      return false;
-    }
-
-    return true;
-  })
-  .map(pkg => {
-    const packageJsonPath = path.join(PACKAGES_DIR, pkg, 'package.json');
+const WORKSPACE_ROOT = path.resolve(__dirname, '../../../');
+const packagePaths = glob
+  .sync(
+    packageJson.workspaces.packages.map(pattern => `${pattern}/package.json`)
+  )
+  .map(match => {
+    const packageJsonPath = path.join(WORKSPACE_ROOT, match);
     return {
-      basename: pkg,
       packageJsonPath,
       packageJson: fs.readJsonSync(packageJsonPath),
-      packagePath: path.join(PACKAGES_DIR, pkg),
+      packagePath: path.dirname(packageJsonPath),
+      packageFolder: path.relative(
+        WORKSPACE_ROOT,
+        path.dirname(packageJsonPath)
+      ),
     };
   });
 
 const env = {
   root: {
-    directory: path.resolve(__dirname, '../../..'),
+    directory: WORKSPACE_ROOT,
     packageJson,
   },
-  packagesDir: PACKAGES_DIR,
   packagePaths,
 };