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feat(buildGo): Add 'srcOnly' and 'targets' parameters for external

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Adds two new parameters to buildGo.external:

* `srcOnly` toggles whether the created derivation should contain only
  the source code, or the built package.

  This is useful in situations where some sub-packages of a larger
  package are needed and the build should be deferred to the package
  depending on them.

  It defaults to false, meaning that external packages are built by
  default.

* `targets` controls which "sub-packages" of the target package are
  built. It defaults to building all sub-packages.
This commit is contained in:
Vincent Ambo 2019-11-26 12:11:43 +00:00
parent 7d26550c11
commit 8b6b08b814
1 changed files with 4 additions and 4 deletions
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8
buildGo.nix
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@ -90,7 +90,7 @@ let
#
# Contrary to other functions, `src` is expected to point at a
# single directory containing the root of the external library.
external = { path, src, deps ? [] }:
external = { path, src, deps ? [], srcOnly ? false, targets ? [ "..." ] }:
let
name = pathToName path;
uniqueDeps = allDeps deps;
@ -106,7 +106,7 @@ let
mkdir -p gopath $out
export GOPATH=$PWD/gopath
ln -s ${gopathSrc} gopath/src
${go}/bin/go install ${path}/...
${go}/bin/go install ${spaceOut (map (t: path + "/" + t) targets)}
if [[ -d gopath/pkg/linux_amd64 ]]; then
echo "Installing Go packages for ${path}"
@ -118,10 +118,10 @@ let
mv gopath/bin $out/bin
fi
'';
in symlinkJoin {
in (if srcOnly then gopathSrc else symlinkJoin {
name = "goext-${name}";
paths = [ gopathSrc gopathPkg ];
} // { goDeps = uniqueDeps; };
}) // { goDeps = uniqueDeps; };
# Protobuf & gRPC integration requires these dependencies:
proto-go-src = fetchFromGitHub {