Generated sources location not under src

1

I’m using extraScript to generate some sources before build.

All works fine if I’m putting all generated sources inside src/ dir.

Actually, it is better to place for generated sources is inside build dir:

build_path = env.GetBuildPath("$BUILD_DIR")
generated_src_dir = os.path.join(build_path, 'mylib', 'generated')
env.Append(CPPPATH=[generated_src_dir])

All include headers, located in generated from this example can be seen by the project. Main problem is that .c/.cpp files not compiled in this case.

I tried to add them with SRC_FILTER but failed (seems because it accepts only relative paths):

env.Append(SRC_FILTER=[f"+<{generated_src_dir}/*>"])

So, how to add generated sources located inside build directory to the project?

2

So, can somebody tell me, is it possible to place generated sources outside src folder?

3

Exactly, the path here is relative the src_dir.

I’m not sure if it’s possible what you want to do, adding source files from the build output directory in the build system. You can also open issue at Issues · platformio/platformio-core · GitHub for clarification.

4

I found another solution to add custom sources dir:

build_path = env.subst("$BUILD_DIR")
generated_src_dir = os.path.join(build_path, 'mylib', 'generated')
generated_build_dir = os.path.join(build_path, 'mylib', 'generated', 'build')
env.Append(CPPPATH=[generated_src_dir])
env.BuildSources(generated_build_dir, generated_src_dir)

This works.

2 Likes
5

Interesting. I’ve opened Add example with env.BuildSources() · Issue #209 · platformio/platformio-docs · GitHub to have that added to the documentation.