122 lines
3.9 KiB
Nix
122 lines
3.9 KiB
Nix
{
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# android-webview-kiosk — Android TV fullscreen WebView kiosk showing a
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# hardcoded Grafana dashboard, remote-launched via Sony Bravia IP control.
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#
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# Deviation from lab Go template: APK is built impurely (Gradle fetches Maven
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# deps from the network). No `nix build` output; use nix run instead:
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# nix run — build all APKs then deploy to TV
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# nix run .#build — build only
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# nix run .#deploy — deploy already-built APKs to TV
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description = "Android TV fullscreen WebView kiosk for the Grafana house dashboard";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/release-26.05";
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flake-utils.url = "github:numtide/flake-utils";
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};
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outputs =
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{
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self,
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nixpkgs,
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flake-utils,
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}:
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flake-utils.lib.eachSystem [ "x86_64-linux" ] (
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system:
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let
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pkgs = import nixpkgs {
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inherit system;
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config = {
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allowUnfree = true; # Android SDK
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android_sdk.accept_license = true;
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};
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};
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buildToolsVersion = "36.0.0";
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androidComposition = pkgs.androidenv.composeAndroidPackages {
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platformVersions = [ "35" ];
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buildToolsVersions = [ buildToolsVersion ];
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includeEmulator = false;
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includeSystemImages = false;
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includeNDK = false;
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};
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androidSdk = androidComposition.androidsdk;
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sdkRoot = "${androidSdk}/libexec/android-sdk";
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fonts = with pkgs; [ noto-fonts dejavu_fonts freefont_ttf ];
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gradleEnv = {
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ANDROID_HOME = sdkRoot;
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ANDROID_SDK_ROOT = sdkRoot;
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JAVA_HOME = "${pkgs.jdk21}";
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GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${sdkRoot}/build-tools/${buildToolsVersion}/aapt2";
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FONTCONFIG_FILE = pkgs.makeFontsConf { fontDirectories = fonts; };
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};
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deployScript = ''
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trap 'adb disconnect "$TV_IP:5555"' EXIT
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adb connect "$TV_IP:5555"
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for apk in app/build/outputs/apk/*/release/*.apk; do
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adb install -r "$apk"
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done
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'';
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exportGradleEnv = ''
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export ANDROID_HOME="${sdkRoot}"
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export ANDROID_SDK_ROOT="${sdkRoot}"
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export JAVA_HOME="${pkgs.jdk21}"
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export GRADLE_OPTS="${gradleEnv.GRADLE_OPTS}"
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export FONTCONFIG_FILE="${gradleEnv.FONTCONFIG_FILE}"
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'';
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tvDeploy = pkgs.writeShellApplication {
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name = "tv-deploy";
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runtimeInputs = [ pkgs.android-tools ];
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text = deployScript;
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};
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buildApp = pkgs.writeShellApplication {
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name = "build";
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runtimeInputs = [ androidSdk pkgs.jdk21 pkgs.gradle_9 ];
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text = ''
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${exportGradleEnv}
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gradle --no-daemon :app:test
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gradle --no-daemon :app:assembleRelease
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'';
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};
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buildAndDeploy = pkgs.writeShellApplication {
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name = "build-and-deploy";
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runtimeInputs = [ androidSdk pkgs.jdk21 pkgs.gradle_9 pkgs.android-tools ];
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text = ''
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${exportGradleEnv}
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gradle --no-daemon :app:test
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gradle --no-daemon :app:assembleRelease
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${deployScript}
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'';
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};
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in
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{
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apps = {
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default = { type = "app"; program = "${buildAndDeploy}/bin/build-and-deploy"; };
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build = { type = "app"; program = "${buildApp}/bin/build"; };
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deploy = { type = "app"; program = "${tvDeploy}/bin/tv-deploy"; };
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};
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devShells.default = pkgs.mkShell {
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packages = [
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androidSdk
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pkgs.jdk21
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pkgs.gradle_9
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pkgs.imagemagick # banner/icon generation
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pkgs.android-tools # adb for sideloading
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tvDeploy
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] ++ fonts;
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inherit (gradleEnv) ANDROID_HOME ANDROID_SDK_ROOT JAVA_HOME GRADLE_OPTS FONTCONFIG_FILE;
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};
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}
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);
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}
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