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Mikhail Kulesh edited this page Jan 17, 2018 · 3 revisions

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This repository contains a script that allows us to collect 'unstable' and unsigned APK file that is build automatically by Travis CI after each commit.

How does it work?

  • The repository contains a special branch where only one APK file is stored: autobuild

  • In the root directory of this repository, there is a file .travis.yml that contains build rules for Travis

  • After the build is successfully finished, we can push newly created APK back to the autobuild branch into this directory. It is done by executing of push-apk.sh script:

after_success:
  - ./autobuild/push-apk.sh
  • In this script, we first clone autobuild branch into a separate directory:
git clone https://github.com/mkulesh/microMathematics.git --branch autobuild --single-branch microMathematics_autobuild
cd microMathematics_autobuild
  • Next, we copy the newly created APK from gradle output directory ./app/build/outputs/apk into this directory of the autobuild branch
mv ../microMathematics/app/build/outputs/apk/microMathematics-v2.16.apk ./autobuild
  • Next, we prepare git for push into a remote repository using github personal access token as a "Travis CI" user:
git config --global user.email "[email protected]"
git config --global user.name "Travis CI"
git remote add origin-master https://${AUTOBUILD_TOKEN}@github.com/mkulesh/microMathematics

  • The private personal access token is generated once here and needs to be stored somewhere (but not in the repository).

  • The token can be encrypted using travis tool and attached to the .travis.yml file. Just install Travis gem (sudo gem install travis) and run following command in the root directory of the repository:

echo AUTOBUILD_TOKEN=<generated token> | travis encrypt --add -r mkulesh/microMathematics
  • This tool expands .travis.yml by new section that contains encrypted variable ${AUTOBUILD_TOKEN} 
env:
  global:
    secure: ERsltm1IX7A...
  • After performing git remote add origin-master https://${AUTOBUILD_TOKEN}@github.com/mkulesh/microMathematics, we are in the local branch autobuild, authorized in the github for read/write operations and can finally commit and push the APK. Here, we don’t want to run a build for a this commit in order to avoid circular builds. To achieve it, travis needs [ci skip] label in the commit message:
git commit --message "Snapshot autobuild N.$TRAVIS_BUILD_NUMBER [ci skip]"
git push origin-master

See also How to set up TravisCI for projects that push back to github. The free icons for the page logo are provided by visualpharm.com.

See also Travis CI: автоматическая загрузка собранных модулей на GitHub (In Russian)

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