Add cache purge jsdelivr step to CI (#1243)

Author: silesky

package.json

@@ -24,7 +24,7 @@
     "postinstall": "husky install",
     "changeset": "changeset",
     "update-versions-and-changelogs": "changeset version && yarn version-run-all && bash scripts/update-lockfile.sh",
-    "release": "yarn clean && yarn build --force && changeset publish && git push origin HEAD:master --follow-tags --no-verify",
+    "release": "yarn clean && yarn build --force && changeset publish && git push origin HEAD:master --follow-tags --no-verify && yarn scripts purge-cdn-cache",
     "version-run-all": "yarn workspaces foreach -vpt --no-private run version",
     "core": "yarn workspace @segment/analytics-core",
     "browser": "yarn workspace @segment/analytics-next",

scripts/package.json

@@ -6,6 +6,9 @@
     ".": "yarn run -T turbo run --filter=@internal/scripts",
     "lint": "yarn concurrently 'yarn:eslint .' 'yarn:tsc --noEmit'",
     "create-release-from-tags": "yarn ts-node-script --files create-release-from-tags/run.ts",
+    "purge-cdn-cache": "yarn concurrently 'yarn:purge-cdn-cache:*'",
+    "purge-cdn-cache:signals": "node purge-cdn-cache.js '@segment/analytics-signals' 'packages/signals/signals/dist/umd'",
+    "purge-cdn-cache:consent": "node purge-cdn-cache.js '@segment/analytics-consent-wrapper-onetrust' 'packages/consent/consent-wrapper-onetrust/dist/umd'",
     "test": "yarn jest",
     "tsc": "yarn run -T tsc",
     "eslint": "yarn run -T eslint",

scripts/purge-cdn-cache.js

@@ -0,0 +1,70 @@
+const { execSync } = require('node:child_process')
+const fs = require('node:fs')
+const path = require('node:path')
+/**
+ * Given a package name and a relative path to the dist folder -- it reads all the files and runs them through the jsdelivr cache purge API.
+ * On CI, will abort the purge unless the current commit has a tag with the package name on it.
+ */
+const purgeJsDelivrCache = async (packageName, relativePath) => {
+  console.log(`\n\n`)
+  const gitRoot = path.resolve(__dirname, '..')
+  const fullPath = path.join(gitRoot, relativePath)
+
+  if (!fs.existsSync(fullPath)) {
+    console.error(`Path does not exist: ${fullPath}`)
+    process.exit(1)
+  }
+
+  // Only run this script if the given package has been published
+  // Check if the current git HEAD has a tag containing the package name
+  // This is a bit odd versus just having the cache purge on a prepublish hooks, but publish hooks like post/prepublish had been flaky on CI with changesets when I was setting this up.
+  if (process.env.CI) {
+    console.log('Searching for matching tag for package...')
+    try {
+      const tags = execSync('git tag --contains HEAD', {
+        cwd: gitRoot,
+      }).toString()
+
+      const hasMatchingTag = tags.includes(packageName)
+      if (!hasMatchingTag) {
+        console.log(
+          `No tags containing the package name "${packageName}" found on the current git HEAD. Aborting cache purge.`
+        )
+        process.exit(0)
+      }
+    } catch (error) {
+      console.error(`Failed to check git tags: ${error.message}`)
+      process.exit(1)
+    }
+  }
+
+  const files = fs.readdirSync(fullPath)
+
+  console.log(
+    `Purging files for ${packageName}: ${JSON.stringify(files, null, 2)}`
+  )
+  for (const file of files) {
+    const filePath = path.join(relativePath, file)
+    console.log(`Purging cache: ${file}...`)
+    const url = `https://purge.jsdelivr.net/npm/${packageName}/${filePath}`
+
+    try {
+      const response = await fetch(url)
+      if (!response.ok) {
+        console.error(`Failed to purge: ${url} - Status: ${response.status}`)
+      }
+    } catch (error) {
+      console.error(`Failed to purge: ${url} - Error: ${error.message}`)
+    }
+  }
+  console.log(`\nPurge of ${packageName} finished.`)
+}
+
+const [packageName, relativePath] = process.argv.slice(2)
+
+if (!packageName || !relativePath) {
+  console.error('Usage: node purge-cdn-cache.js <package-name> <relative-path>')
+  process.exit(1)
+}
+
+purgeJsDelivrCache(packageName, relativePath)