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path: root/pkgs/development/mobile/androidenv/build-app.nix
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{
  composeAndroidPackages,
  stdenv,
  lib,
  ant,
  jdk,
  gnumake,
  gawk,
  meta,
}:

{
  name,
  release ? false,
  keyStore ? null,
  keyAlias ? null,
  keyStorePassword ? null,
  keyAliasPassword ? null,
  antFlags ? "",
  ...
}@args:

assert
  release
  -> keyStore != null && keyAlias != null && keyStorePassword != null && keyAliasPassword != null;

let
  androidSdkFormalArgs = lib.functionArgs composeAndroidPackages;
  androidArgs = builtins.intersectAttrs androidSdkFormalArgs args;
  androidsdk = (composeAndroidPackages androidArgs).androidsdk;

  extraArgs = removeAttrs args ([ "name" ] ++ builtins.attrNames androidSdkFormalArgs);
in
stdenv.mkDerivation (
  {
    name = lib.replaceStrings [ " " ] [ "" ] name; # Android APKs may contain white spaces in their names, but Nix store paths cannot
    ANDROID_HOME = "${androidsdk}/libexec/android-sdk";
    buildInputs = [
      jdk
      ant
    ];
    buildPhase = ''
      ${lib.optionalString release ''
        # Provide key singing attributes
        ( echo "key.store=${keyStore}"
          echo "key.alias=${keyAlias}"
          echo "key.store.password=${keyStorePassword}"
          echo "key.alias.password=${keyAliasPassword}"
        ) >> ant.properties
      ''}

      export ANDROID_SDK_HOME=`pwd` # Key files cannot be stored in the user's home directory. This overrides it.

      ${lib.optionalString (args ? includeNDK && args.includeNDK) ''
        export GNUMAKE=${gnumake}/bin/make
        export NDK_HOST_AWK=${gawk}/bin/gawk
        ${androidsdk}/libexec/android-sdk/ndk-bundle/ndk-build
      ''}
      ant ${antFlags} ${if release then "release" else "debug"}
    '';
    installPhase = ''
      mkdir -p $out
      mv bin/*-${if release then "release" else "debug"}.apk $out

      mkdir -p $out/nix-support
      echo "file binary-dist \"$(echo $out/*.apk)\"" > $out/nix-support/hydra-build-products
    '';

    inherit meta;
  }
  // extraArgs
)