There is an error when running commitlint when the commitlint dependencies are listed in a subpackage of a monorepo. Error: Cannot find module 'typescript’ When these dependencies are defined in the top level package.json, there is no issue.
The dependency tree for typescript is different between these cases. For example, when commitlint and @commitlint/config-conventional are required by the subpackage:
npm why typescript
typescript@"^4.6.4 || ^5.0.0" from @commitlint/[email protected]
node_modules/@commitlint/load
@commitlint/load@"^17.7.1" from @commitlint/[email protected]
node_modules/@commitlint/cli
@commitlint/cli@"^17.7.1" from [email protected]
node_modules/commitlint
dev commitlint@"^17.7.1" from repro-subpackage@undefined
packages/repro-subpackage
repro-subpackage@undefined
node_modules/repro-subpackage
workspace packages/repro-subpackage from the root project
and when they are only in the root package:
npm why typescript
[email protected] dev
node_modules/typescript
peer typescript@">=3" from [email protected]
node_modules/cosmiconfig-typescript-loader
cosmiconfig-typescript-loader@"^4.0.0" from @commitlint/[email protected]
node_modules/@commitlint/load
@commitlint/load@"^17.7.1" from @commitlint/[email protected]
node_modules/@commitlint/cli
@commitlint/cli@"^17.7.1" from [email protected]
node_modules/commitlint
dev commitlint@"^17.7.1" from repro-subpackage@undefined
packages/repro-subpackage
repro-subpackage@undefined
node_modules/repro-subpackage
workspace packages/repro-subpackage from the root project
peer typescript@">=2.7" from [email protected]
node_modules/ts-node
peer ts-node@">=10" from [email protected]
node_modules/cosmiconfig-typescript-loader
cosmiconfig-typescript-loader@"^4.0.0" from @commitlint/[email protected]
node_modules/@commitlint/load
@commitlint/load@"^17.7.1" from @commitlint/[email protected]
node_modules/@commitlint/cli
@commitlint/cli@"^17.7.1" from [email protected]
node_modules/commitlint
dev commitlint@"^17.7.1" from repro-subpackage@undefined
packages/repro-subpackage
repro-subpackage@undefined
node_modules/repro-subpackage
workspace packages/repro-subpackage from the root project
ts-node@"^10.8.1" from @commitlint/[email protected]
node_modules/@commitlint/load
@commitlint/load@"^17.7.1" from @commitlint/[email protected]
node_modules/@commitlint/cli
@commitlint/cli@"^17.7.1" from [email protected]
node_modules/commitlint
dev commitlint@"^17.7.1" from repro-subpackage@undefined
packages/repro-subpackage
repro-subpackage@undefined
node_modules/repro-subpackage
workspace packages/repro-subpackage from the root project
typescript@"^4.6.4 || ^5.0.0" from @commitlint/[email protected]
node_modules/@commitlint/load
@commitlint/load@"^17.7.1" from @commitlint/[email protected]
node_modules/@commitlint/cli
@commitlint/cli@"^17.7.1" from [email protected]
node_modules/commitlint
dev commitlint@"^17.7.1" from repro-subpackage@undefined
packages/repro-subpackage
repro-subpackage@undefined
node_modules/repro-subpackage
workspace packages/repro-subpackage from the root project
Run npm run commitlint in the main branch of this repo. It should fail with Error: Cannot find module 'typescript’. The in-root branch moves the 2 commitlint dependencies to the top level, removes them from the packages/repro-subpackage and updates the lock. Running npm run commitlint there should work without issue.
Issue report here.