Make the whole workflow dry-runnable

.github/actions/upload-to-s3/action.yml

@@ -0,0 +1,17 @@
+name: 'Upload to S3'
+description: 'Upload the contents of a directory to an S3 bucket'
+
+inputs:
+  directory:
+    description: Directory to upload
+    required: true
+  destination:
+    description: S3 destination path URI
+    required: true
+  dry-run:
+    description: If true, run the commands but don't actually upload
+    required: false
+
+runs:
+  using: 'node20'
+  main: './main.js'

.github/actions/upload-to-s3/main.js

@@ -0,0 +1,21 @@
+const execSync = require('child_process').execSync
+const core = require('@actions/core')
+
+/**
+ * @fileoverview Upload a directory to S3.
+ */
+
+const directory = core.getInput('directory', {required: true})
+const destination = core.getInput('destination', {required: true})
+const dryRun = core.getBooleanInput('dry-run')
+
+const args = ['--recursive']
+if (dryRun) {
+  args.push('--dryrun')
+}
+
+core.info(`Uploading ${directory} to S3.`)
+execSync(`aws s3 cp ${args.join(' ')} "${directory}" "${destination}"`, { stdio: 'inherit' })
+// Note: the default cache policy is 1 day, I think that's OK for now.
+// In the future if traffic increases we can increase the expiration
+// as much as we want.

.github/workflows/publish.yml

@@ -7,6 +7,7 @@ on:
 env:
   VERSION: ${{ github.event.release.tag_name }}
   WEB_PATH: "react-dom/${{ github.event.release.tag_name }}/docs/"
+  DRY_RUN: false
 
 permissions:
   contents: read # Permission for actions/checkout
@@ -45,11 +46,12 @@ jobs:
           role-to-assume: ${{ secrets.AWS_UPLOADER_ROLE_PLAYERS }}
           aws-region: us-east-1
 
-      - name: Upload to S3
-        run: aws s3 cp --recursive "./dist/storybook" "${{ secrets.AWS_WEB_BUCKET }}/${{ env.WEB_PATH }}"
-        # Note: the default cache policy is 1 day, I think that's OK for now.
-        # In the future if traffic increases we can increase the expiration
-        # as much as we want.
+      - name: Publish to NPM
+        uses: ./.github/actions/upload-to-s3
+        with:
+          directory: "./dist/storybook"
+          destination: "${{ secrets.AWS_WEB_BUCKET }}/${{ env.WEB_PATH }}"
+          dry-run: ${{ env.DRY_RUN }}
 
     ## Publish the NPM package
 
@@ -61,7 +63,7 @@ jobs:
         with:
           version: ${{ env.VERSION }}
           npm-token: ${{ secrets.CLPLAYERS_NPM_TOKEN_RW }}
-          dry-run: false
+          dry-run: ${{ env.DRY_RUN }}
 
       - name: Add Job summary
         run: |