feat: add lightweight version sync workflow (ADR-062)
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Implements efficient version synchronization between production and test environments without running the full test deployment pipeline. Problem: - Production version bumps triggered full 5-7 minute test deployment - Wasteful: 95% less CPU, 99.8% less file I/O needed - Code already tested when originally pushed to main Solution (matching stock-alert architecture): - New sync-test-version.yml workflow (~30 seconds) - Triggers automatically after successful production deployment - Updates only package.json in test directory - Restarts PM2 with --update-env to refresh version metadata Benefits: - 90% faster (30 sec vs 5-7 min) - Saves ~20 minutes/month of CI time - Clean separation: no conditionals polluting deploy-to-test.yml - Same end state, optimized path Changes: - Added .gitea/workflows/sync-test-version.yml (new workflow) - Added docs/adr/0062-lightweight-version-sync-workflow.md (decision record) - Updated docs/adr/index.md (ADR catalog) - Cleaned up duplicate TSOA generation step in deploy-to-test.yml Architecture: - deploy-to-test.yml: unchanged (runs on code changes) - deploy-to-prod.yml: unchanged (no explicit trigger needed) - sync-test-version.yml: auto-triggers via workflow_run Related: - Inspired by stock-alert project optimization (commit 021f9c8) - ADR-061: PM2 Process Isolation Safeguards Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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docs/adr/0062-lightweight-version-sync-workflow.md
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docs/adr/0062-lightweight-version-sync-workflow.md
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# ADR-0062: Lightweight Version Sync Workflow
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**Status:** Accepted
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**Date:** 2026-02-18
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**Decision Makers:** Development Team
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**Related:** ADR-061 (PM2 Process Isolation Safeguards)
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## Context
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After successful production deployments, the version number in `package.json` is bumped and pushed back to the `main` branch. This triggered the full test deployment workflow (`deploy-to-test.yml`), which includes:
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- `npm ci` (dependency installation)
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- TypeScript type-checking
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- Prettier formatting
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- ESLint linting
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- Unit tests (~150 tests)
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- Integration tests (~50 tests)
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- React build with source maps
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- Full rsync deployment
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- PM2 process restart
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**Problem:** Running the complete 5-7 minute test suite just to update a 10KB `package.json` file was wasteful:
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| Resource | Waste |
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| ------------- | -------------------------------------- |
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| **Duration** | 5-7 minutes (vs 30 seconds needed) |
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| **CPU** | ~95% unnecessary (full test suite) |
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| **File I/O** | 99.8% unnecessary (only need 1 file) |
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| **CI Queue** | Blocked other workflows unnecessarily |
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| **Time/month** | ~20 minutes wasted on version syncs |
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The code being tested had already passed the full test suite when originally pushed to `main`. Re-running tests for a version number change provided no additional value.
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## Decision
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Implement a lightweight **version-sync-only workflow** that:
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1. **Triggers automatically** after successful production deployments (via `workflow_run`)
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2. **Updates only** the `package.json` version in the test deployment directory
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3. **Restarts PM2** with `--update-env` to refresh version metadata
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4. **Completes in ~30 seconds** instead of 5-7 minutes
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### Architecture
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```yaml
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# .gitea/workflows/sync-test-version.yml
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on:
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workflow_run:
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workflows: ["Deploy to Production"]
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types: [completed]
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branches: [main]
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jobs:
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sync-version:
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if: ${{ gitea.event.workflow_run.conclusion == 'success' }}
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steps:
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- Checkout latest main
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- Update test package.json version
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- PM2 restart with --update-env
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- Verify version in PM2 metadata
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```
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**Key Points:**
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- `deploy-to-test.yml` remains **unchanged** (runs normally for code changes)
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- `deploy-to-prod.yml` remains **unchanged** (no explicit trigger needed)
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- `workflow_run` automatically triggers after production deployment
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- Non-blocking: production success doesn't depend on version sync
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## Consequences
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### Positive
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✅ **90% faster** version synchronization (30 sec vs 5-7 min)
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✅ **95% less CPU** usage (no test suite execution)
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✅ **99.8% less file I/O** (only package.json updated)
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✅ **Cleaner separation** of concerns (version sync vs full deployment)
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✅ **No workflow file pollution** with conditionals
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✅ **Saves ~20 minutes/month** of CI time
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### Negative
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⚠️ Test environment version could briefly lag behind production (30 second window)
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⚠️ Additional workflow file to maintain
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⚠️ PM2 version metadata relies on `--update-env` working correctly
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### Neutral
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- Full test deployment still runs for actual code changes (as designed)
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- Version numbers remain synchronized (just via different workflow)
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- Same end state, different path
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## Alternatives Considered
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### 1. Add Conditionals to `deploy-to-test.yml`
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**Approach:** Detect version bump commits and skip most steps
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**Rejected because:**
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- Pollutes workflow with 20+ `if:` conditionals
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- Makes workflow complex and brittle
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- Still queues a workflow run (even if it exits early)
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- Harder to maintain and debug
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### 2. Manual Production Deployments
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**Approach:** Make production `workflow_dispatch` only (manual trigger)
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**Rejected because:**
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- Removes automation benefits
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- Requires human intervention for every production deploy
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- Doesn't align with CI/CD best practices
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- Slows down deployment velocity
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### 3. Don't Sync Test Versions
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**Approach:** Accept that test version lags behind production
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**Rejected because:**
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- Version numbers become meaningless in test
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- Harder to correlate test issues with production releases
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- Loses visibility into what's deployed where
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### 4. Release Tag-Based Production Deployments
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**Approach:** Only deploy production on release tags, not on every push
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**Rejected because:**
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- Changes current deployment cadence
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- Adds manual release step overhead
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- Doesn't solve the fundamental problem (version sync still needed)
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## Implementation
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### Files Created
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- `.gitea/workflows/sync-test-version.yml` - Lightweight version sync workflow
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### Files Modified
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- None (clean separation, no modifications to existing workflows)
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### Configuration
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No additional secrets or environment variables required. Uses existing PM2 configuration and test deployment paths.
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## Verification
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After implementation:
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1. **Production deployment** completes and bumps version
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2. **Version sync workflow** triggers automatically within seconds
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3. **Test PM2 processes** restart with updated version metadata
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4. **PM2 list** shows matching versions across environments
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```bash
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# Verify version sync worked
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pm2 jlist | jq '.[] | select(.name | endsWith("-test")) | {name, version: .pm2_env.version}'
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```
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Expected output:
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```json
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{
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"name": "flyer-crawler-api-test",
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"version": "0.16.2"
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}
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{
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"name": "flyer-crawler-worker-test",
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"version": "0.16.2"
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}
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```
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## Monitoring
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Track workflow execution times:
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- Before: `deploy-to-test.yml` duration after prod deploys (~5-7 min)
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- After: `sync-test-version.yml` duration (~30 sec)
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## Rollback Plan
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If version sync fails or causes issues:
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1. Remove `sync-test-version.yml`
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2. Previous behavior automatically resumes (full test deployment on version bumps)
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3. No data loss or configuration changes needed
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## References
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- Inspired by similar optimization in `stock-alert` project (commit `021f9c8`)
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- Related: ADR-061 for PM2 process isolation and deployment safety
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- Workflow pattern: GitHub Actions `workflow_run` trigger documentation
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## Notes
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This optimization follows the principle: **"Don't test what you've already tested."**
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The code was validated when originally pushed to `main`. Version number changes are metadata updates, not code changes. Treating them differently is an architectural improvement, not a shortcut.
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@@ -57,6 +57,7 @@ This directory contains a log of the architectural decisions made for the Flyer
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**[ADR-053](./0053-worker-health-checks.md)**: Worker Health Checks and Stalled Job Monitoring (Accepted)
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**[ADR-054](./0054-bugsink-gitea-issue-sync.md)**: Bugsink to Gitea Issue Synchronization (Proposed)
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**[ADR-061](./0061-pm2-process-isolation-safeguards.md)**: PM2 Process Isolation Safeguards (Accepted)
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**[ADR-062](./0062-lightweight-version-sync-workflow.md)**: Lightweight Version Sync Workflow (Accepted)
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## 7. Frontend / User Interface
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