Potential Build Script for CI

.github/workflows/ci-next-js.yml

@@ -21,7 +21,7 @@ on:
       - 'prettier.config.js'
 
 jobs:
-  build:
+  test:
     runs-on: ubuntu-latest
 
     steps:
@@ -51,3 +51,86 @@ jobs:
 
       - name: Build
         run: pnpm build:next
+
+  measure:
+    needs: test
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.head_ref || github.ref }}
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '24'
+          # No cache - we want clean measurements
+
+      - name: Measure install time
+        id: install
+        run: |
+          START=$(date +%s%N)
+          pnpm install --frozen-lockfile
+          END=$(date +%s%N)
+          ELAPSED=$((($END - $START) / 1000000))
+          echo "time=$ELAPSED" >> $GITHUB_OUTPUT
+          echo "Install time: ${ELAPSED}ms"
+
+      - name: Measure cold build time
+        id: cold_build
+        run: |
+          START=$(date +%s%N)
+          pnpm build:next
+          END=$(date +%s%N)
+          ELAPSED=$((($END - $START) / 1000000))
+          echo "time=$ELAPSED" >> $GITHUB_OUTPUT
+          echo "Cold build time: ${ELAPSED}ms"
+
+      - name: Measure warm build time
+        id: warm_build
+        run: |
+          START=$(date +%s%N)
+          pnpm build:next
+          END=$(date +%s%N)
+          ELAPSED=$((($END - $START) / 1000000))
+          echo "time=$ELAPSED" >> $GITHUB_OUTPUT
+          echo "Warm build time: ${ELAPSED}ms"
+
+      - name: Save CI stats
+        run: |
+          mkdir -p packages/starter-next-js
+          echo '{
+            "installTimeMs": ${{ steps.install.outputs.time }},
+            "coldBuildTimeMs": ${{ steps.cold_build.outputs.time }},
+            "warmBuildTimeMs": ${{ steps.warm_build.outputs.time }},
+            "timingMeasuredAt": "'$(date -u +%Y-%m-%dT%H:%M:%SZ)'",
+            "runner": "ubuntu-latest"
+          }' > packages/starter-next-js/.ci-stats.json
+
+      - name: Commit CI stats
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add packages/starter-next-js/.ci-stats.json
+
+          if git diff --staged --quiet; then
+            echo "No changes to commit"
+            exit 0
+          fi
+
+          git commit -m "Update CI stats for starter-next-js [skip ci]"
+
+          # Push to the PR branch or main
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            git push origin HEAD:${{ github.head_ref }}
+          else
+            git push
+          fi

packages/starter-next-js/.ci-stats.json

@@ -0,0 +1,7 @@
+{
+  "installTimeMs": 6793,
+  "coldBuildTimeMs": 8357,
+  "warmBuildTimeMs": 7581,
+  "timingMeasuredAt": "2026-01-06T08:48:59Z",
+  "runner": "ubuntu-latest"
+}

packages/stats-generator/src/create-stats.ts

@@ -3,6 +3,7 @@ import { join } from 'node:path'
 import { getStarterPackages } from './get-starter-packages.ts'
 import { packagesDir } from './constants.ts'
 import { saveStats } from './save-stats.ts'
+import { getCIStats } from './get-ci-stats.ts'
 import type { FrameworkStats, PackageJson } from './types.ts'
 
 async function createStats() {
@@ -21,9 +22,12 @@ async function createStats() {
       const prodCount = Object.keys(dependencies).length
       const devCount = Object.keys(devDependencies).length
 
+      const ciStats = await getCIStats(pkgDir)
+
       const stats: FrameworkStats = {
         prodDependencies: prodCount,
         devDependencies: devCount,
+        ...(ciStats ?? {}),
       }
 
       await saveStats(pkgDir, stats)

packages/stats-generator/src/get-ci-stats.ts

@@ -0,0 +1,15 @@
+import { readFile } from 'node:fs/promises'
+import { join } from 'node:path'
+import { packagesDir } from './constants.ts'
+import { CIStats } from './types.ts'
+
+export async function getCIStats(pkgDir: string) {
+  const ciStatsPath = join(packagesDir, pkgDir, '.ci-stats.json')
+
+  try {
+    const content = await readFile(ciStatsPath, 'utf-8')
+    return JSON.parse(content) as CIStats
+  } catch (error) {
+    return null
+  }
+}

packages/stats-generator/src/types.ts

@@ -1,4 +1,11 @@
-export interface FrameworkStats {
+export interface CIStats {
+  installTimeMs?: number
+  coldBuildTimeMs?: number
+  warmBuildTimeMs?: number
+  timingMeasuredAt?: string
+}
+
+export interface FrameworkStats extends CIStats {
   prodDependencies: number
   devDependencies: number
 }