Files
android-webview-kiosk/flake.nix
T
arnie 32e45c266d
build / build (push) Failing after 2m56s
Fix gradle aapt2 linking
2026-06-12 19:05:03 +02:00

81 lines
2.8 KiB
Nix

{
# android-webview-kiosk — Android TV fullscreen WebView kiosk showing a
# hardcoded Grafana dashboard, remote-launched via Sony Bravia IP control.
#
# Deviation from lab Go template: this flake provides a DEV SHELL ONLY.
# Gradle fetches Maven deps from the network, so the APK is built impurely:
# nix develop --command gradle :app:assembleRelease
# There is no `nix build` output and no container/push pipeline.
description = "Android TV fullscreen WebView kiosk for the Grafana house dashboard";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/release-25.11";
flake-utils.url = "github:numtide/flake-utils";
};
outputs =
{
self,
nixpkgs,
flake-utils,
}:
flake-utils.lib.eachDefaultSystem (
system:
let
pkgs = import nixpkgs {
inherit system;
config = {
allowUnfree = true; # Android SDK
android_sdk.accept_license = true;
};
};
buildToolsVersion = "34.0.0";
androidComposition = pkgs.androidenv.composeAndroidPackages {
platformVersions = [ "34" ];
buildToolsVersions = [ buildToolsVersion ];
includeEmulator = false;
includeSystemImages = false;
includeNDK = false;
};
androidSdk = androidComposition.androidsdk;
sdkRoot = "${androidSdk}/libexec/android-sdk";
fonts = with pkgs; [ noto-fonts dejavu_fonts freefont_ttf ];
# NixOS gotcha: AGP downloads a dynamically-linked aapt2 from Maven
# that can't run on NixOS. android.aapt2FromMavenOverride is a Gradle
# *project* property; `-Dorg.gradle.project.<name>` on the command line
# sets one. It must be a CLI arg, not GRADLE_OPTS: the gradle package
# in nixpkgs 25.11 is a raw `exec java ... GradleMain "$@"` wrapper
# that ignores GRADLE_OPTS (fixed post-25.11 in nixpkgs PR #449037 —
# once we're past 25.11, plain GRADLE_OPTS works and this wrapper can go).
gradle = pkgs.symlinkJoin {
name = "gradle-nixos-aapt2";
paths = [ pkgs.gradle ];
nativeBuildInputs = [ pkgs.makeWrapper ];
postBuild = ''
wrapProgram $out/bin/gradle \
--add-flags "-Dorg.gradle.project.android.aapt2FromMavenOverride=${sdkRoot}/build-tools/${buildToolsVersion}/aapt2"
'';
};
in
{
devShells.default = pkgs.mkShell {
packages = [
androidSdk
pkgs.jdk17
gradle # wrapped, see above
pkgs.imagemagick # banner/icon generation
pkgs.android-tools # adb for sideloading
] ++ fonts;
ANDROID_HOME = sdkRoot;
ANDROID_SDK_ROOT = sdkRoot;
FONTCONFIG_FILE = pkgs.makeFontsConf { fontDirectories = fonts; };
};
}
);
}