The Challenge
Business Problem
Major framework upgrades (React class to hooks, Python 2 to 3, etc.) require touching hundreds of files. Manual migration is slow, error-prone, and blocks feature development for weeks.
The Approach
Solution Overview
Connect GitHub MCP Server with Sourcegraph to find all instances of deprecated patterns, auto-generate migration PRs, and track completion across the codebase.
Step-by-Step
Implementation Steps
1
Scan for Migration Targets
Use Sourcegraph to find all instances of the deprecated pattern across all repositories.
2
Generate Transforms
Create code transformation rules that convert old patterns to new ones.
3
Create Migration PRs
Generate a PR for each repository with the automated changes.
async function migratePattern(pattern, replacement) {
const matches = await sourcegraph.search({ query: pattern, count: 10000 });
const byRepo = groupBy(matches, 'repository');
for (const [repo, files] of Object.entries(byRepo)) {
const branch = `migration/${pattern.name}`;
await github.createBranch({ repo, branch, from: 'main' });
for (const file of files) {
const content = await github.getFileContent({ repo, path: file.path });
const updated = applyTransform(content, pattern, replacement);
await github.updateFile({ repo, path: file.path, content: updated, branch });
}
await github.createPullRequest({ repo, title: `Migrate: ${pattern.name}`, head: branch, base: 'main' });
}
}4
Track Progress
Monitor migration completion across all repositories with a dashboard.
Code
Code Examples
typescript
Migration Tracker
async function trackMigration(pattern) {
const remaining = await sourcegraph.search({ query: pattern, count: 1 });
const total = await sourcegraph.search({ query: pattern.replacement, count: 1 });
return { migrated: total.matchCount, remaining: remaining.matchCount, percent: (total.matchCount / (total.matchCount + remaining.matchCount) * 100).toFixed(1) };
}Overview
ComplexityHard
Estimated Time~20 hours
Tools Used
GitHub MCP ServerSourcegraph MCP ServerSlack MCP Server
Industry
TechnologySaaS
ROI Metrics
Time SavedWeeks of manual migration
Cost Reduction90% faster code migration
Efficiency GainConsistent, error-free transforms