tsgo2tsc

tsgo2tsc

Migrate projects from @typescript/native-preview and tsgo to the TypeScript 7 tsc flow.

Supports stable TypeScript, nightly TypeScript, and compatibility mode for tools that still need the TypeScript 6 compiler API.

Usage

bunx tsgo2tsc scan
bunx tsgo2tsc scan ../my-project
bunx tsgo2tsc migrate --dry-run
bunx tsgo2tsc migrate --write --install --test
bunx tsgo2tsc migrate --nightly --write

Development

Run the CLI directly from source (no build step):

bun dev scan
bun dev scan ../other-project
bun dev migrate ../other-project --dry-run
bun dev migrate --cwd ../other-project --write --yes

Watch the production bundle with bun run build:watch.

Commands

Command	Description
scan	Scan the project and report migration readiness
migrate	Plan or apply migration from tsgo to tsc
doctor	Check migration health and verification
rollback	Restore files from the latest migration snapshot

Migration modes

• stable — typescript@^7.0.0 and tsc
• nightly — typescript@next and tsc
• compat-stable — @typescript/native aliased to TS7 + typescript aliased to TS6 API
• compat-nightly — same as compat but with typescript@next

Compatibility mode is auto-detected when tools like typescript-eslint, typedoc, @microsoft/api-extractor, or direct import "typescript" usage are found.

Links

• Repository
• Issues

License

MIT