TypeScript version: 4.0.5
Run yarn tsc -b --verbose multiple times, despite no file change, b project will be always be rebuilt.
Three projects in this repo: a, b, and c. They are configured to only emit d.ts files to
a_out, b_out, and c_out respectively. With project reference, c depends on b depends on a.
b/doubly_included.ts is included in both a project and b project. To allow that, a's rootDir
is set to .. to allow referencing source files in its sibling folder b.
Run yarn tsc -b to populate a_out, b_out, and c_out. Notice that there is no b_out/b.d.ts,
but there is a_out/b/doubly_included.d.ts. b is also rebuilt despite no file change with the
reason reported in the verbose mode:
Project 'b/tsconfig.json' is out of date because output file 'b_out/doubly_included.d.ts' does not exist