Go

Build with Flox

Not only can you develop your software with Flox, but you can build it as well. See the builds concept page for more details.

Since the output of the build must be copied to the $out directory, you may either install the output directly to $out, or you may copy the executable there manually after running go build.

Go adds metadata to compiled binaries that allows details from the build environment to leak through. For example, a compiled binary will contain absolute paths to source files. This can cause builds to fail as it interferes with Flox's ability to determine when a build depends on an artifact that aren't included in the build's closure, i.e. when a build has missing dependencies. To address this you'll need to compile your programs with the -trimpath option.

Install directly to $out:

[build.myproject]
command = '''
  GOBIN=$out/bin go install -trimpath
'''

Copy the executable manually:

[build.myproject]
command = '''
  mkdir -p $out/bin
  go build -trimpath
  cp ./myproject $out/bin/myproject
'''