Missing tsconfig.json:compilerOptions.rootDir makes dev-mode load commands from ./dist/

[salieri]

Describe the bug
If compilerOptions.rootDir and compilerOptions.rootDirs options are omitted, tsPath defaults to dist/ -- even in dev mode.

To Reproduce

1. npx oclif generate example
2. Remove rootDir from tsconfig.json
3. Run ./bin/dev some:command

Expected behavior
./bin/dev should be reading commands from ./src

Workaround
Add compilerOptions.rootDir into tsconfig.json

Environment (please complete the following information):

• OS & version: MacOS Ventura 13.4
• Shell/terminal & version zsh 5.9

Additional context
Our standard tsconfig.json configuration does not contain a compilerOptions.rootDir value. Instead, we have been relying on compilerOptions.baseUrl and compilerOptions.sourceRoot settings.

Until we realized what was going on with the rootDir, the developer experience was quite confusing -- we were definitely running in dev mode, but somehow the commands were loaded from ./dist. There were no warning messages either, so it wasn't all that intuitive to figure out what was going wrong.

Perhaps you could add some kind of a tsconfig.json sanity check to make sure that the fields you require to be present are present?