Only check external links once a month

.github/workflows/check-links.yml

@@ -0,0 +1,26 @@
+name: Check Links
+
+on:
+  workflow_dispatch: # Allow running on-demand
+  schedule:
+    # 1st of every month at 8:00 UTC (4:00 Eastern)
+    - cron: '0 8 1 * *'
+
+jobs:
+  check:
+    name: Check Links
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: .nvmrc
+          cache: yarn
+      - name: Install dependencies
+        run: yarn install --immutable
+      - name: Build site
+        run: yarn build-prod
+      - name: Check for broken internal links
+        run: yarn checklinks:internal
+      - name: Check for broken external links
+        run: yarn checklinks:external

.github/workflows/test.yml

@@ -10,8 +10,8 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  check-links:
-    name: Check links
+  test:
+    name: Test
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -19,13 +19,12 @@ jobs:
         with:
           node-version-file: .nvmrc
           cache: yarn
-      - name: Install dependencies
-        run: yarn install --immutable
-      - name: Check links
+      - name: Install & build
         run: |
+          yarn install --immutable
           yarn build-prod
-          yarn checklinks:internal
-          yarn checklinks:external
+      - name: Check links
+        run: yarn checklinks:internal
 
   lint:
     name: Lint

package.json

@@ -38,7 +38,7 @@
     "lint:ci": "run-s prettier:ci gts:ci stylelint:ci tsc",
     "test": "echo \"Error: no test specified\" && exit 1",
     "checklinks:internal": "npx --yes --package=hyperlink --package=tap-spot -- 'hyperlink --canonicalroot https://sass-lang.com/ --root _site/ -r -p -i --skip \".css.map\" --skip \".js.map\" --skip \"feed.atom\" --skip \"/documentation/js-api/\" --skip \"/blog/\" _site/index.html | tap-spot'",
-    "checklinks:external": "npx --yes --package=broken-link-checker -- 'blc -ro --exclude=localhost:8080 https://sass-lang.com'"
+    "checklinks:external": "npx --yes --package=broken-link-checker -- 'blc -ro --exclude=localhost:8080 --exclude=codepen.io --exclude=linkedin.com --exclude=docs.github.com --exclude=twitter.com https://sass-lang.com'"
   },
   "devDependencies": {
     "@11ty/eleventy": "^2.0.1",