How to speed up Android Gradle build in continuous integration
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Below is a sample task for Concourse CI, which caches gradle packages for future builds.
build_android.sh
---
platform: linux
image_resource:
type: docker-image
source:
repository: alvrme/alpine-android
tag: android-28
inputs:
- name: app-repo
run:
path: app-repo/ci/tasks/build_android.sh
caches:
- path: .gradle
build.sh
#!/bin/sh
set -eux
export ROOT_FOLDER=$(pwd)
export GRADLE_USER_HOME="${ROOT_FOLDER}/.gradle"
cd app-repo
./gradlew assembleDebug
At the beginning of shell script I set the path GRADE_USER_HOME to be relative to the currently used workspace, so that Concourse can save the files for later.
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