Dockerfile

@@ -1,31 +1,19 @@
-FROM docker.io/debian:12-slim AS build
-ENV DEBIAN_FRONTEND=noninteractive
+FROM docker.io/debian:12-slim as build
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-        ca-certificates \
-        curl \
         sdkmanager \
         xz-utils \
     && rm -rf /var/lib/apt/lists/*
-# https://docs.flutter.dev/release/archive
-RUN curl https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.27.3-stable.tar.xz \
-    | tar --no-same-owner -C /opt/ -xJ
-# https://developer.android.com/tools/releases/build-tools
+ADD https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.24.4-stable.tar.xz /flutter.tar.xz
+RUN tar -C /opt/ --exclude=cache -xJf /flutter.tar.xz
 RUN sdkmanager \
-        "build-tools;33.0.1" \
-        "build-tools;34.0.0" \
+        "build-tools;35.0.0" \
         "cmdline-tools;9.0" \
-        "platform-tools" \
-        "platforms;android-33" \
-        "platforms;android-34" \
+        "platform-tools;35.0.2" \
         "platforms;android-35"
-# https://gradle.org/releases/
-RUN curl -Lo /gradle.zip \
-    'https://services.gradle.org/distributions/gradle-8.12.1-bin.zip'
 
 FROM docker.io/debian:12-slim
-ENV DEBIAN_FRONTEND=noninteractive
-RUN touch /.dockerenv
+RUN useradd -m app
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
         curl \
@@ -33,14 +21,9 @@ RUN apt-get update \
         openjdk-17-jdk-headless \
         unzip \
     && rm -rf /var/lib/apt/lists/*
-COPY --from=build /opt/ /opt/
-ENV GRADLE_ZIP=/gradle.zip
-COPY --from=build /gradle.zip "$GRADLE_ZIP"
+COPY --from=build --chown=app:app /opt/ /opt/
+USER app
 ENV PATH="/opt/flutter/bin:$PATH"
-RUN flutter config --android-sdk /opt/android-sdk/
-RUN flutter precache --android
-RUN yes | flutter doctor --android-licenses
-COPY entrypoint.sh /usr/local/bin/
-WORKDIR /app/
-ENTRYPOINT ["entrypoint.sh"]
-CMD ["build", "apk"]
+RUN flutter config --android-sdk /opt/android-sdk/ \
+    && yes | flutter doctor --android-licenses > /dev/null
+ENTRYPOINT ["flutter"]

README.md

@@ -1,21 +0,0 @@
-# docker-flutter
-
-## Action
-```yaml
-- uses: icing/flutter@main
-```
-
-## Docker image
-### Examples
-- Run
-```bash
-docker volume create --ignore fluttercache
-docker run --rm --network host -v "$PWD:/app/" -v "fluttercache:/home/gradle/.gradle/" git.gmoker.com/icing/flutter:main run
-```
-
-- Build
-```bash
-docker volume create --ignore fluttercache
-docker run --rm -v "$PWD:/app/" -v "fluttercache:/home/gradle/.gradle/" git.gmoker.com/icing/flutter:main build apk
-```
-The apk will be found at `build/app/outputs/flutter-apk/app-release.apk`.

action.yml

@@ -1,3 +0,0 @@
-runs:
-  using: docker
-  image: git.gmoker.com/icing/flutter:main

entrypoint.sh

@@ -1,12 +0,0 @@
-#!/bin/bash
-
-PROPS=android/gradle/wrapper/gradle-wrapper.properties
-BAK=/bak
-
-cp "$PROPS" "$BAK" || exit 1
-# shellcheck disable=SC2064
-trap "cp '$BAK' '$PROPS'" EXIT
-
-sed -i "/^distributionUrl/s =.\+ =file\\://$GRADLE_ZIP " "$PROPS"
-
-flutter --no-version-check "$@"