feat(compare-schema): ci check to make sure schema.ts never goes out of sync with migrations

[icecrasher321]

Summary

Prevent schema.ts and migrations snapshots/sql files from going out of sync.

Type of Change

• Other: Dev Reliability

Testing

Tested manually.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
docs	Skipped		Dec 18, 2025 7:20pm

[greptile-apps]

Greptile Summary

Added a CI check to prevent schema.ts from going out of sync with migration files by running drizzle-kit generate and checking for uncommitted changes in the migrations directory.

• Runs drizzle-kit generate to regenerate migrations from schema
• Uses git status --porcelain to detect any new/modified files in ./migrations
• Provides clear error message with instructions if sync issues detected
• Issue: Missing DATABASE_URL environment variable that drizzle.config.ts requires

Confidence Score: 3/5

• Safe to merge after fixing the missing environment variable
• Good approach to prevent schema drift, but the check will fail without DATABASE_URL env var. Once fixed, this provides valuable CI validation.
• .github/workflows/test-build.yml needs the DATABASE_URL environment variable added

Important Files Changed

Filename	Overview
.github/workflows/test-build.yml	Added schema sync check step that validates schema.ts matches migrations, but missing DATABASE_URL env var

Sequence Diagram

sequenceDiagram
    participant GH as GitHub Actions
    participant WD as Working Directory
    participant DK as drizzle-kit
    participant Schema as schema.ts
    participant Mig as migrations/
    
    GH->>WD: cd packages/db
    GH->>DK: bunx drizzle-kit generate
    DK->>Schema: Read schema.ts
    DK->>Mig: Generate migration files
    Note over DK,Mig: Creates .sql and .json snapshots
    GH->>WD: git status --porcelain ./migrations
    alt Changes detected
        WD-->>GH: Modified files found
        GH->>GH: echo error message
        GH->>GH: git diff ./migrations
        GH->>GH: exit 1 (fail CI)
    else No changes
        WD-->>GH: Clean status
        GH->>GH: echo success message
        GH->>GH: Continue workflow
    end

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[greptile-apps]

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