From 834c68a6f5cd8c6efefee7d3a6683c962af76d2a Mon Sep 17 00:00:00 2001
From: Le Vivilet <72156503+levivilet@users.noreply.github.com>
Date: Tue, 22 Oct 2024 21:46:27 +0200
Subject: [PATCH] feature: update node modules cache key (#68)

---
 .github/workflows/ci.yml                      |  2 +-
 .github/workflows/pr.yml                      |  2 +-
 .github/workflows/release.yml                 |  2 +-
 .../build/src/computeNodeModulesCacheKey.js   | 70 +++++++++++++++++++
 4 files changed, 73 insertions(+), 3 deletions(-)
 create mode 100644 packages/build/src/computeNodeModulesCacheKey.js

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8a4c91e..f5fba82 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
           node-version-file: '.nvmrc'
       - name: Compute node modules cache key
         id: nodeModulesCacheKey
-        run: echo "value=$(node scripts/computeNodeModulesCacheKey.js)" >> $GITHUB_OUTPUT
+        run: echo "value=$(node packages/build/src/computeNodeModulesCacheKey.js)" >> $GITHUB_OUTPUT
         shell: bash
       - uses: actions/cache@v4
         id: npm-cache
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 3bf3e3d..5f39823 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -19,7 +19,7 @@ jobs:
           node-version-file: '.nvmrc'
       - name: Compute node modules cache key
         id: nodeModulesCacheKey
-        run: echo "value=$(node scripts/computeNodeModulesCacheKey.js)" >> $GITHUB_OUTPUT
+        run: echo "value=$(node packages/build/src/computeNodeModulesCacheKey.js)" >> $GITHUB_OUTPUT
         shell: bash
       - uses: actions/cache@v4
         id: npm-cache
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5c3ec83..ab8866e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -40,7 +40,7 @@ jobs:
           node-version-file: '.nvmrc'
       - name: Compute node modules cache key
         id: nodeModulesCacheKey
-        run: echo "value=$(node scripts/computeNodeModulesCacheKey.js)" >> $GITHUB_OUTPUT
+        run: echo "value=$(node packages/build/src/computeNodeModulesCacheKey.js)" >> $GITHUB_OUTPUT
         shell: bash
       - uses: actions/cache@v4
         id: npm-cache
diff --git a/packages/build/src/computeNodeModulesCacheKey.js b/packages/build/src/computeNodeModulesCacheKey.js
new file mode 100644
index 0000000..bced2a1
--- /dev/null
+++ b/packages/build/src/computeNodeModulesCacheKey.js
@@ -0,0 +1,70 @@
+import { createHash } from 'node:crypto'
+import { readdirSync } from 'node:fs'
+import { readFile } from 'node:fs/promises'
+import { dirname, join } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+const __dirname = dirname(fileURLToPath(import.meta.url))
+
+const root = join(__dirname, '..', '..', '..')
+
+const getPackageLocations = () => {
+  const packageLocations = []
+  const packagesFolder = join(root, 'packages')
+  const dirents = readdirSync(packagesFolder)
+  for (const dirent of dirents) {
+    packageLocations.push(`packages/${dirent}/package-lock.json`)
+  }
+  packageLocations.push('package-lock.json')
+  return packageLocations
+}
+
+const locations = [
+  'lerna.json',
+  ...getPackageLocations(),
+  '.github/workflows/pr.yml',
+  '.github/workflows/ci.yml',
+  '.github/workflows/release.yml',
+  'packages/build/src/computeNodeModulesCacheKey.js',
+]
+
+const packagesFolder = join(root, 'packages')
+
+const dirents = readdirSync(packagesFolder)
+for (const dirent of dirents) {
+  locations.push(`packages/${dirent}/package-lock.json`)
+}
+
+const getAbsolutePath = (relativePath) => {
+  return join(root, relativePath)
+}
+
+const getContent = (absolutePath) => {
+  return readFile(absolutePath, 'utf8')
+}
+
+export const computeHash = (contents) => {
+  const hash = createHash('sha1')
+  if (Array.isArray(contents)) {
+    for (const content of contents) {
+      hash.update(content)
+    }
+  } else if (typeof contents === 'string') {
+    hash.update(contents)
+  }
+  return hash.digest('hex')
+}
+
+const computeCacheKey = async (locations) => {
+  const absolutePaths = locations.map(getAbsolutePath)
+  const contents = await Promise.all(absolutePaths.map(getContent))
+  const hash = computeHash(contents)
+  return hash
+}
+
+const main = async () => {
+  const hash = await computeCacheKey(locations)
+  process.stdout.write(hash)
+}
+
+main()