add linux build

flutter/flutter-linux.gitlab-ci.yml

+# Required variables:
+## APP_DIRECTORY: The directory of the app
+## APPLICATION_VERSION: The build name of the application
+## APPLICATION_BUILD_NUMBER: The build number of the application
+## LINUX_BIN_NAME: The name of the output bin
+
+stages:
+- build
+
+variables:
+  FLUTTER_LINUX_IMAGE: andrijoos/flutter:3.24.5-linux
+  APPIMAGE_BUILDER_IMAGE: appimagecrafters/appimage-builder:1.1.0
+
+  LINUX_PLATFORMS: x64 # linux-arm64 not available yet, as cross-compilation not supported
+
+.build_linux:
+  stage: build
+  image: ${FLUTTER_LINUX_IMAGE}
+  tags:
+  - amd64
+  artifacts:
+    paths:
+    - x64
+    expire_in: 1 day
+  script:
+  - cd ${APP_DIRECTORY}
+  - |
+    IFS=',' read -r -a platforms <<< "${LINUX_PLATFORMS}"
+    for platform in "${platforms[@]}"; do
+      flutter build linux --release --target-platform linux-${platform} --build-name ${APPLICATION_VERSION} --build-number ${APPLICATION_BUILD_NUMBER}
+    done
+  after_script:
+  - |
+    IFS=',' read -r -a platforms <<< "${LINUX_PLATFORMS}"
+    for platform in "${platforms[@]}"; do
+      mkdir -p ${platform}
+      mv ${APP_DIRECTORY}/build/linux/x64/release/bundle/* ./${platform}
+      mv ${platform}/${APP_NAME} ${platform}/${LINUX_BIN_NAME}
+    done

linux/appimage.gitlab-ci.yml

+# Required variables:
+## APP_NAME
+## APP_DIR
+## APPIMAGE_VERSION
+## APPIMAGE_BUILDER_CONFIG
+## APPIMAGE_EXECUTABLE_NAME
+## APPIMAGE_ICON
+## APPIMAGE_ICON_DIMENSIONS
+## APPIMAGE_NAME
+
+stages:
+- build
+
+variables:
+  APPIMAGE_BUILDER_IMAGE: appimagecrafters/appimage-builder:1.1.0
+  APPIMAGE_PLATFORM: x86_64
+
+  APPIMAGE_SIGN_KEY: None
+  APPIMAGE_SIGN: false
+
+.build_appimage:
+  stage: build
+  image: ${APPIMAGE_BUILDER_IMAGE}
+  tags:
+  - amd64
+  artifacts:
+    paths:
+    - "*.AppImage"
+    - "*.AppImage.zsync"
+    - "*.asc"
+    expire_in: 1 day
+  variables:
+    APPDIR_SUBDIR: AppDir
+  script:
+  - which mksquashfs || apt install squashfs-tools # appimagecrafters/appimage-builder currently doesn't provide mksquashfs https://github.com/AppImageCrafters/appimage-builder/issues/271
+  - |
+    if [ "${APPIMAGE_SIGN}" == "true" ]
+    then
+      echo "${APPIMAGE_SIGN_CERTIFICATE}" | base64 -d | gpg2 --batch --import
+    fi
+  - |
+    APPDIR_PATH=$PWD/${APPDIR_SUBDIR}
+    ICON=$(basename "${APPIMAGE_ICON}")
+    ICON_DIR="${APPDIR_SUBDIR}/usr/share/icons/hicolor/${APPIMAGE_ICON_DIMENSIONS}/apps/"
+
+    sed -i "s|\${APPDIR_PATH}|${APPDIR_PATH}|" ${APPIMAGE_BUILDER_CONFIG}
+    sed -i "s/\${APP_NAME}/${APP_NAME}/" ${APPIMAGE_BUILDER_CONFIG}
+    sed -i "s/\${VERSION}/${APPIMAGE_VERSION}/" ${APPIMAGE_BUILDER_CONFIG}
+    sed -i "s/\${ICON}/${ICON}/" ${APPIMAGE_BUILDER_CONFIG}
+    sed -i "s/\${EXECUTABLE}/${APPIMAGE_EXECUTABLE_NAME}/" ${APPIMAGE_BUILDER_CONFIG}
+    sed -i "s/\${SIGN_KEY}/\"\"/" ${APPIMAGE_BUILDER_CONFIG}
+    sed -i "s/\${ARCH}/${APPIMAGE_PLATFORM}/" ${APPIMAGE_BUILDER_CONFIG}
+
+    if [ "${APPIMAGE_PLATFORM}" == "x86_64" ]
+    then
+      APT_ARCH="amd64"
+    elif [ "${APPIMAGE_PLATFORM}" == "arm64" ]
+    then
+      APT_ARCH="arm64"
+    fi
+
+    BUILDER_CONFIG="builder_config.yml"
+    cp ${APPIMAGE_BUILDER_CONFIG} ${BUILDER_CONFIG}
+    sed -i "s/\${APT_ARCH}/${APT_ARCH}/" ${BUILDER_CONFIG}
+
+    mkdir -p ${APPDIR_SUBDIR}
+    mv ${APP_DIR}/* ${APPDIR_SUBDIR}
+
+    mkdir -p ${ICON_DIR}
+    cp ${APPIMAGE_ICON} ${ICON_DIR}
+
+    appimage-builder --skip-tests --recipe ${BUILDER_CONFIG}
+
+    GENERATED_APPIMAGE_NAME="${APP_NAME}-${APPIMAGE_VERSION}-${APPIMAGE_PLATFORM}"
+    mv ${GENERATED_APPIMAGE_NAME}.AppImage ${APPIMAGE_NAME}.AppImage
+    mv ${GENERATED_APPIMAGE_NAME}.AppImage.zsync ${APPIMAGE_NAME}.AppImage.zsync
+
+    if [ "${APPIMAGE_SIGN}" == "true" ]
+    then
+      gpg2 --pinentry-mode loopback --passphrase ${APPIMAGE_SIGN_PASSWORD} --sign --detach-sig --armor --default-key ${APPIMAGE_SIGN_KEY} ${APPIMAGE_NAME}.AppImage
+    fi

linux/snap.gitlab-ci.yml

+# Required variables:
+## APP_NAME
+## APP_DIR
+## APP_VERSION
+## APP_SUMMARY
+## APP_DESCRIPTION
+## SNAP_BASE
+## SNAP_GRADE
+## SNAP_COMMAND
+## SNAP_PLATFORM
+## SNAP_NAME
+## SNAP_CONFIG
+
+stages:
+- build
+
+variables:
+  SNAPCRAFT_IMAGE: ghcr.io/canonical/snapcraft:8_core24
+
+  SNAP_CONFINMENT: strict
+
+.build_snap:
+  stage: build
+  image: ${SNAPCRAFT_IMAGE}
+  tags:
+  - amd64
+  artifacts:
+    paths:
+    - "*.snap"
+    expire_in: 1 day
+  variables:
+    BUILD_DIR: build
+  script:
+  - |
+    sed -i "s/\${APP_NAME}/${APP_NAME}/" ${SNAP_CONFIG}
+    sed -i "s/\${VERSION}/${APP_VERSION}/" ${SNAP_CONFIG}
+    sed -i "s/\${SUMMARY}/${APP_SUMMARY}/" ${SNAP_CONFIG}
+    sed -i "s/\${DESCRIPTION}/${APP_DESCRIPTION}/" ${SNAP_CONFIG}
+    sed -i "s/\${CONFINEMENT}/${SNAP_CONFINMENT}/" ${SNAP_CONFIG}
+    sed -i "s/\${BASE}/${SNAP_BASE}/" ${SNAP_CONFIG}
+    sed -i "s/\${GRADE}/${SNAP_GRADE}/" ${SNAP_CONFIG}
+    sed -i "s/\${COMMAND}/${SNAP_COMMAND}/" ${SNAP_CONFIG}
+
+    mkdir -p ${BUILD_DIR}/meta
+    cp -r ${APP_DIR}/* ${BUILD_DIR}
+    cp ${SNAP_CONFIG} ${BUILD_DIR}/meta/snap.yaml
+
+    snapcraft pack --platform ${SNAP_PLATFORM} ${BUILD_DIR}
+    rm -r ${BUILD_DIR}
+
+    GENERATED_SNAP="${APP_NAME}_${APP_VERSION}_all.snap"
+    ls .
+    mv "${GENERATED_SNAP}" "${SNAP_NAME}.snap"