create an alias just for build dev with {:replace-paths ["."]} and then use both your build alias and that together

clj -A:build:build-dev

> Would adding :extra-paths ["."] in an alias also include all the sub-directories in the project technically yes, but they are not in the correct lookup location to be found in a way that matches their namespace (so this is not an issue)

Are there any issues if I add the :replace-paths ["."] to the :build alias directly? That approach doesn't seem to interfere with using :build via the -T execution option (at least not so far 🙂 )

that's fine too

Including . path does make cider test runner find the same test twice... Although using the Kaocha test runner from CIDER only runs the test once. It seems to be clean I should have two REPL startup commands, one for project development and one specifically for build.clj development. I'm not expecting to have to touch the build.clj very often, so I guess thats okay

I think tdeps will dedupe paths for the classpath, might depend how the cider test runner gets things

Cider should just consult the REPL state for tests, maybe when I evaluate a test its getting two vars in the REPL state... but I am just guessing based on the output. I mostly use kaocha either within CIDER or on the command line (where the build alias wouldnt be used anyway) Its not a significant issue, just wondering how to design template code and examples for the books. Thanks

I think it's more likely it's searching a list of paths and the same path is included twice somehow

both . and test may be included in the classpath which may give that issue?