add empty metrics-report-action

.github/actions/metrics-report/action.yml

@@ -0,0 +1,6 @@
+name: 'metrics-report-action'
+author: 'Dany Castillo'
+description: 'Posts a comment with a report about changes in important metrics related to tailwind-merge'
+runs:
+    using: 'node20'
+    main: 'main.js'

.github/actions/metrics-report/main.js

@@ -0,0 +1,3 @@
+// @ts-check
+
+console.log('Hello, world!')

.github/actions/metrics-report/package.json

@@ -0,0 +1,11 @@
+{
+    "name": "metrics-report-action",
+    "version": "0.1.0",
+    "private": true,
+    "author": "Dany Castillo",
+    "type": "module",
+    "scripts": {
+        "start": "node main.js"
+    },
+    "dependencies": {}
+}

.github/workflows/metrics-report.yml

@@ -0,0 +1,32 @@
+name: Metrics report
+
+on: [pull_request]
+
+jobs:
+    size:
+        runs-on: ubuntu-latest
+        permissions:
+            pull-requests: write
+        steps:
+            - uses: actions/checkout@v4
+            - name: Use Node.js 20
+              uses: actions/setup-node@v4
+              with:
+                  node-version: 20.11.1
+            - name: Use node_modules cache
+              uses: actions/cache@v4
+              with:
+                  path: node_modules
+                  key: yarn-node-20-lock-${{ hashFiles('yarn.lock') }}
+                  restore-keys: |
+                      yarn-node-20-lock-
+            - run: yarn install --frozen-lockfile
+            - name: Use node_modules cache for metrics-report-action
+              uses: actions/cache@v4
+              with:
+                  path: .github/actions/metrics-report/node_modules
+                  key: yarn-node-20-metrics-report-action-lock-${{ hashFiles('.github/actions/metrics-report/yarn.lock') }}
+                  restore-keys: |
+                      yarn-node-20-metrics-report-action-lock-
+            - run: yarn --cwd .github/actions/metrics-report install --frozen-lockfile
+            - uses: ./.github/actions/metrics-report