status-react/nix/status-go/mobile/build.nix

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{ lib, stdenv, utils, callPackage, buildGo114Package
, go, androidPkgs, openjdk, gomobile, xcodeWrapper
# object with source attributes
, meta, source
, platform ? "android"
, architectures ? [ "arm64" "arm" "x86" ]
, goBuildFlags ? [ ]
, goBuildLdFlags ? [ ]
, outputFileName ? "status-go-${source.shortRev}-${platform}.aar" }:
let
inherit (stdenv) isDarwin;
inherit (lib)
concatStrings concatStringsSep concatMapStrings optionalString
getAttr attrValues makeBinPath optional;
removeReferences = [ go ];
removeExpr = refs: ''remove-references-to ${concatMapStrings (ref: " -t ${ref}") refs}'';
# formatted for use with -target
targetArchs = map (a: "${platform}/${a}") architectures;
in buildGo114Package {
pname = source.repo;
version = "${source.cleanVersion}-${source.shortRev}-${platform}";
inherit meta;
inherit (source) src goPackagePath;
nativeBuildInputs = [ gomobile ]
++ optional (platform == "android") openjdk
++ optional isDarwin xcodeWrapper;
# Fixes Cgo related build failures (see https://github.com/NixOS/nixpkgs/issues/25959 )
hardeningDisable = [ "fortify" ];
# Ensure XCode is present for iOS build, instead of failing at the end of the build
preConfigure = optionalString (isDarwin && platform == "ios") utils.enforceXCodeAvailable;
# Build mobile libraries
preBuild = let
NIX_GOWORKDIR = "$NIX_BUILD_TOP/go-build";
in ''
mkdir ${NIX_GOWORKDIR}
export GO111MODULE=off
export GOPATH=${gomobile.out}:$GOPATH
export NIX_GOWORKDIR=${NIX_GOWORKDIR}
'' + optionalString (platform == "android") ''
export ANDROID_HOME=${androidPkgs}
export ANDROID_NDK_HOME=${androidPkgs}/ndk-bundle
export PATH="${makeBinPath [ openjdk ]}:$PATH"
'';
# Build the Go library using gomobile for each of the configured platforms
buildPhase = let
ldFlags = [ "-extldflags=-Wl,--allow-multiple-definition" ] ++ goBuildLdFlags;
CGO_LDFLAGS = concatStringsSep " " ldFlags;
in ''
runHook preBuild
runHook renameImports
echo -e "\nBuilding for targets: ${concatStringsSep "," targetArchs}\n"
${gomobile}/bin/gomobile bind \
-target=${concatStringsSep "," targetArchs} \
-ldflags="${CGO_LDFLAGS}" \
${optionalString (platform == "android") "-androidapi 23"} \
${optionalString (platform == "ios") "-iosversion=8.0"} \
${concatStringsSep " " goBuildFlags} \
-o ${outputFileName} \
${source.goPackagePath}/mobile
rm -rf $NIX_GOWORKDIR
runHook postBuild
'';
# replace hardcoded paths to go package in /nix/store, otherwise Nix will fail the build
fixupPhase = ''
find $out -type f -exec ${removeExpr removeReferences} '{}' + || true
'';
installPhase = ''
mkdir -p $out
mv ${outputFileName} $out/
'';
outputs = [ "out" ];
}