flutter.buildFlutterApplication: Allow building for the Web
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hacker1024
parent
b43ee05f4e
commit
f51a0b053d
3 changed files with 151 additions and 127 deletions
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@ -103,6 +103,9 @@ flutter.buildFlutterApplication {
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pname = "firmware-updater";
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version = "unstable-2023-04-30";
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# To build for the Web, use the flutterHostPlatform argument.
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# flutterHostPlatform = "web";
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src = fetchFromGitHub {
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owner = "canonical";
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repo = "firmware-updater";
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@ -17,134 +17,160 @@
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{ pubGetScript ? "flutter pub get"
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, flutterBuildFlags ? [ ]
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, flutterHostPlatform ? "linux"
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, extraWrapProgramArgs ? ""
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, ...
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}@args:
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(buildDartApplication.override {
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dart = flutter;
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}) (args // {
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sdkSetupScript = ''
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# Pub needs SSL certificates. Dart normally looks in a hardcoded path.
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# https://github.com/dart-lang/sdk/blob/3.1.0/runtime/bin/security_context_linux.cc#L48
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#
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# Dart does not respect SSL_CERT_FILE...
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# https://github.com/dart-lang/sdk/issues/48506
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# ...and Flutter does not support --root-certs-file, so the path cannot be manually set.
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# https://github.com/flutter/flutter/issues/56607
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# https://github.com/flutter/flutter/issues/113594
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#
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# libredirect is of no use either, as Flutter does not pass any
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# environment variables (including LD_PRELOAD) to the Pub process.
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#
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# Instead, Flutter is patched to allow the path to the Dart binary used for
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# Pub commands to be overriden.
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export NIX_FLUTTER_PUB_DART="${runCommand "dart-with-certs" { nativeBuildInputs = [ makeWrapper ]; } ''
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mkdir -p "$out/bin"
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makeWrapper ${flutter.dart}/bin/dart "$out/bin/dart" \
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--add-flags "--root-certs-file=${cacert}/etc/ssl/certs/ca-bundle.crt"
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''}/bin/dart"
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let
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hostPlatforms = rec {
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universal = args // {
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sdkSetupScript = ''
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# Pub needs SSL certificates. Dart normally looks in a hardcoded path.
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# https://github.com/dart-lang/sdk/blob/3.1.0/runtime/bin/security_context_linux.cc#L48
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#
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# Dart does not respect SSL_CERT_FILE...
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# https://github.com/dart-lang/sdk/issues/48506
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# ...and Flutter does not support --root-certs-file, so the path cannot be manually set.
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# https://github.com/flutter/flutter/issues/56607
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# https://github.com/flutter/flutter/issues/113594
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#
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# libredirect is of no use either, as Flutter does not pass any
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# environment variables (including LD_PRELOAD) to the Pub process.
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#
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# Instead, Flutter is patched to allow the path to the Dart binary used for
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# Pub commands to be overriden.
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export NIX_FLUTTER_PUB_DART="${runCommand "dart-with-certs" { nativeBuildInputs = [ makeWrapper ]; } ''
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mkdir -p "$out/bin"
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makeWrapper ${flutter.dart}/bin/dart "$out/bin/dart" \
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--add-flags "--root-certs-file=${cacert}/etc/ssl/certs/ca-bundle.crt"
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''}/bin/dart"
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export HOME="$NIX_BUILD_TOP"
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flutter config --no-analytics &>/dev/null # mute first-run
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flutter config --enable-linux-desktop >/dev/null
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'';
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export HOME="$NIX_BUILD_TOP"
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flutter config --no-analytics &>/dev/null # mute first-run
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flutter config --enable-linux-desktop >/dev/null
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'';
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inherit pubGetScript;
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inherit pubGetScript;
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sdkSourceBuilders = {
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# https://github.com/dart-lang/pub/blob/68dc2f547d0a264955c1fa551fa0a0e158046494/lib/src/sdk/flutter.dart#L81
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"flutter" = name: runCommand "flutter-sdk-${name}" { passthru.packageRoot = "."; } ''
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for path in '${flutter}/packages/${name}' '${flutter}/bin/cache/pkg/${name}'; do
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if [ -d "$path" ]; then
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ln -s "$path" "$out"
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break
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sdkSourceBuilders = {
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# https://github.com/dart-lang/pub/blob/68dc2f547d0a264955c1fa551fa0a0e158046494/lib/src/sdk/flutter.dart#L81
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"flutter" = name: runCommand "flutter-sdk-${name}" { passthru.packageRoot = "."; } ''
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for path in '${flutter}/packages/${name}' '${flutter}/bin/cache/pkg/${name}'; do
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if [ -d "$path" ]; then
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ln -s "$path" "$out"
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break
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fi
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done
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if [ ! -e "$out" ]; then
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echo 1>&2 'The Flutter SDK does not contain the requested package: ${name}!'
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exit 1
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fi
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'';
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};
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extraPackageConfigSetup = ''
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# https://github.com/flutter/flutter/blob/3.13.8/packages/flutter_tools/lib/src/dart/pub.dart#L755
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if [ "$('${yq}/bin/yq' '.flutter.generate // false' pubspec.yaml)" = "true" ]; then
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'${jq}/bin/jq' '.packages |= . + [{
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name: "flutter_gen",
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rootUri: "flutter_gen",
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languageVersion: "2.12",
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}]' "$out" | '${moreutils}/bin/sponge' "$out"
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fi
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done
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'';
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};
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if [ ! -e "$out" ]; then
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echo 1>&2 'The Flutter SDK does not contain the requested package: ${name}!'
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exit 1
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fi
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'';
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linux = universal // {
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outputs = universal.outputs or [ ] ++ [ "debug" ];
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nativeBuildInputs = (universal.nativeBuildInputs or [ ]) ++ [
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wrapGAppsHook
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# Flutter requires pkg-config for Linux desktop support, and many plugins
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# attempt to use it.
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#
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# It is available to the `flutter` tool through its wrapper, but it must be
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# added here as well so the setup hook adds plugin dependencies to the
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# pkg-config search paths.
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pkg-config
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];
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buildInputs = (universal.buildInputs or [ ]) ++ [ glib ];
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dontDartBuild = true;
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buildPhase = universal.buildPhase or ''
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runHook preBuild
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mkdir -p build/flutter_assets/fonts
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flutter build linux -v --release --split-debug-info="$debug" ${builtins.concatStringsSep " " (map (flag: "\"${flag}\"") flutterBuildFlags)}
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runHook postBuild
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'';
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dontDartInstall = true;
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installPhase = universal.installPhase or ''
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runHook preInstall
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built=build/linux/*/release/bundle
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mkdir -p $out/bin
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mv $built $out/app
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for f in $(find $out/app -iname "*.desktop" -type f); do
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install -D $f $out/share/applications/$(basename $f)
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done
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for f in $(find $out/app -maxdepth 1 -type f); do
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ln -s $f $out/bin/$(basename $f)
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done
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# make *.so executable
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find $out/app -iname "*.so" -type f -exec chmod +x {} +
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# remove stuff like /build/source/packages/ubuntu_desktop_installer/linux/flutter/ephemeral
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for f in $(find $out/app -executable -type f); do
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if patchelf --print-rpath "$f" | grep /build; then # this ignores static libs (e,g. libapp.so) also
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echo "strip RPath of $f"
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newrp=$(patchelf --print-rpath $f | sed -r "s|/build.*ephemeral:||g" | sed -r "s|/build.*profile:||g")
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patchelf --set-rpath "$newrp" "$f"
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fi
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done
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runHook postInstall
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'';
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dontWrapGApps = true;
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extraWrapProgramArgs = ''
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''${gappsWrapperArgs[@]} \
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${extraWrapProgramArgs}
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'';
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};
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web = universal // {
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dontDartBuild = true;
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buildPhase = universal.buildPhase or ''
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runHook preBuild
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mkdir -p build/flutter_assets/fonts
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flutter build web -v --release ${builtins.concatStringsSep " " (map (flag: "\"${flag}\"") flutterBuildFlags)}
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runHook postBuild
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'';
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dontDartInstall = true;
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installPhase = universal.installPhase or ''
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runHook preInstall
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cp -r build/web "$out"
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runHook postInstall
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'';
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};
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};
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extraPackageConfigSetup = ''
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# https://github.com/flutter/flutter/blob/3.13.8/packages/flutter_tools/lib/src/dart/pub.dart#L755
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if [ "$('${yq}/bin/yq' '.flutter.generate // false' pubspec.yaml)" = "true" ]; then
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'${jq}/bin/jq' '.packages |= . + [{
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name: "flutter_gen",
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rootUri: "flutter_gen",
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languageVersion: "2.12",
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}]' "$out" | '${moreutils}/bin/sponge' "$out"
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fi
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'';
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nativeBuildInputs = (args.nativeBuildInputs or [ ]) ++ [
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wrapGAppsHook
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# Flutter requires pkg-config for Linux desktop support, and many plugins
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# attempt to use it.
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#
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# It is available to the `flutter` tool through its wrapper, but it must be
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# added here as well so the setup hook adds plugin dependencies to the
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# pkg-config search paths.
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pkg-config
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];
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buildInputs = (args.buildInputs or [ ]) ++ [ glib ];
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dontDartBuild = true;
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buildPhase = args.buildPhase or ''
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runHook preBuild
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mkdir -p build/flutter_assets/fonts
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flutter build linux -v --release --split-debug-info="$debug" ${builtins.concatStringsSep " " (map (flag: "\"${flag}\"") flutterBuildFlags)}
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runHook postBuild
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'';
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dontDartInstall = true;
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installPhase = args.installPhase or ''
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runHook preInstall
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built=build/linux/*/release/bundle
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mkdir -p $out/bin
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mv $built $out/app
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for f in $(find $out/app -iname "*.desktop" -type f); do
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install -D $f $out/share/applications/$(basename $f)
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done
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for f in $(find $out/app -maxdepth 1 -type f); do
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ln -s $f $out/bin/$(basename $f)
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done
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# make *.so executable
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find $out/app -iname "*.so" -type f -exec chmod +x {} +
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# remove stuff like /build/source/packages/ubuntu_desktop_installer/linux/flutter/ephemeral
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for f in $(find $out/app -executable -type f); do
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if patchelf --print-rpath "$f" | grep /build; then # this ignores static libs (e,g. libapp.so) also
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echo "strip RPath of $f"
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newrp=$(patchelf --print-rpath $f | sed -r "s|/build.*ephemeral:||g" | sed -r "s|/build.*profile:||g")
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patchelf --set-rpath "$newrp" "$f"
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fi
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done
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# Install the package_config.json file.
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# This is normally done by dartInstallHook, but we disable it.
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mkdir -p "$pubcache"
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cp .dart_tool/package_config.json "$pubcache/package_config.json"
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runHook postInstall
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'';
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dontWrapGApps = true;
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extraWrapProgramArgs = ''
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''${gappsWrapperArgs[@]} \
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${extraWrapProgramArgs}
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'';
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})
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in
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(buildDartApplication.override { dart = flutter.override { supportedTargetFlutterPlatforms = [ "universal" flutterHostPlatform ]; }; })
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hostPlatforms.${flutterHostPlatform} or "Unsupported Flutter host platform: ${flutterHostPlatform}"
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@ -51,12 +51,7 @@ let
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(mkCustomFlutter args).overrideAttrs (prev: next: {
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passthru = next.passthru // rec {
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inherit wrapFlutter mkCustomFlutter mkFlutter;
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buildFlutterApplication = callPackage ../../../build-support/flutter {
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# Package a minimal version of Flutter that only uses Linux desktop release artifacts.
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flutter = (wrapFlutter (mkCustomFlutter args)).override {
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supportedTargetFlutterPlatforms = [ "universal" "linux" ];
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};
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};
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buildFlutterApplication = callPackage ../../../build-support/flutter { flutter = wrapFlutter (mkCustomFlutter args); };
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};
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});
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