BitBucket Pipelines for Android

⚠️ This “how-to” deserves some love ❤️. The --package_file option seems broken right now, use a workaround in the meantime (see https://issuetracker.google.com/issues/66465833).

# ( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) | sdkmanager --package_file="${cur_dir}/package_file.txt"
while read -r pkg; do echo "y" | sdkmanager "${pkg}"; done <"${cur_dir}/package_file.txt" >> /dev/null

(January 8, 2021)

BitBucket provides build pipelines to automate the build process when you push changes on your repository. By default, it comes with a docker image made for Java which is not directly suitable for Android builds.

There are some alternative docker images to solve this but on my experimentations, it was very long to download and setup the image. Due to build time restriction of the BitBucket free plan, it was a blocker.

My approach is to download the Android SDK myself and use caches for it. The build with custom docker image was about 8 minutes and is now 1’30”.

ci_install.sh:

#!/usr/bin/env bash

set -eu

cur_dir=$(cd "$(dirname "$0")"; pwd)
origin_dir=$(cd "${cur_dir}/.."; pwd)
app_dir="${origin_dir}/android"
output_dir="${origin_dir}/artifacts"

default_android_sdk_zip_version="3859397"
android_sdk_zip_version=${1:-${default_android_sdk_zip_version}}

case $(uname -s) in
  Linux)
    os="linux"
  ;;
  Darwin)
    os="darwin"
  ;;
  CYGWIN*|MINGW*)
    os="windows"
  ;;
  *)
    echo "!! Unsupported OS $(uname -s)"
    exit 1
  ;;
esac

export ANDROID_HOME="${origin_dir}/android-sdk-${os}"

if [ ! -f "${ANDROID_HOME}/tools/bin/sdkmanager" ]; then
  # Download and unzip Android sdk
  echo "Downloading Android SDK '${android_sdk_zip_version}' for '${os}'"
  wget "https://dl.google.com/android/repository/sdk-tools-${os}-${android_sdk_zip_version}.zip"
  unzip "sdk-tools-${os}-${android_sdk_zip_version}.zip" -d "${ANDROID_HOME}"
  rm "sdk-tools-${os}-${android_sdk_zip_version}.zip"
fi

# Add Android binaries to PATH
export PATH="${ANDROID_HOME}/tools:${ANDROID_HOME}/tools/bin:${ANDROID_HOME}/platform-tools:${PATH}"

# Accept all licenses (source: http://stackoverflow.com/questions/38096225/automatically-accept-all-sdk-licences)
echo "Auto Accepting licenses"
mkdir -p "$ANDROID_HOME/licenses"
echo -e "\n8933bad161af4178b1185d1a37fbf41ea5269c55" > "${ANDROID_HOME}/licenses/android-sdk-license"
echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" > "${ANDROID_HOME}/licenses/android-sdk-preview-license"

# Update android sdk
echo "Downloading packages described by ${cur_dir}/package_file.txt"
cat "${cur_dir}/package_file.txt"
( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) | sdkmanager --package_file="${cur_dir}/package_file.txt"

package_file.txt

platform-tools
build-tools;26.0.2
platforms;android-26

bitbucket-pipelines.yml:

image: java:8

pipelines:
  branches:
    master:
      - step:
          caches:
            - gradle
            - android-sdk
          script:
            - bash ./build/ci_install.sh
            - ANDROID_HOME=$PWD/android-sdk-linux bash ./build/android.sh

definitions:
  caches:
    android-sdk: android-sdk-linux