fix(webpack): resolve TS6059/TS6307 when app with transformers import #34260
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Current Behavior
When using
compiler: 'tsc'with TypeScript transformers (e.g.@nestjs/swagger/plugin) in a Nest app that imports from a shared library via path mappings, the build fails with TS6059 (file not underrootDir) and TS6307 (file not in project file list). The app’stsconfig.app.jsonhas narrowrootDirandinclude, so lib sources pulled in by the compiler are rejected.Expected Behavior
The build succeeds. When
compileristscandtransformersare present, a temporary tsconfig with relaxedrootDirandincludeis used for that webpack build so ts-loader and fork-ts-checker accept lib sources resolved via path mappings. The original tsconfig is unchanged for IDE and standalonetsc.Related Issue(s)
Fixes #33337