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Flutter specialized image (Tested with GitLab)

This is the first image i've created with Docker
This image is specialized in testing and building Android Flutter apps

Docker Hub

Image url: https://hub.docker.com/r/alvarocda/flutter

docker pull alvarocda/flutter:latest

This image contains

  • Android SDK 32
  • Build Tools 29.0.3
  • Build Tools 30.0.2
  • Build Tools 30.0.3
  • Build Tools 31.0.0
  • Build Tools 32.0.0
  • LCOV
  • sed
  • Flutter Latest Stable version (/opt/flutter/bin)
  • Dart SDK installed separately for more reliability in a CI/CD environment (/usr/lib/dart/bin)
  • Sonar Scanner (/opt/sonar-scanner/sonar-scanner-4.6.2.2472-linux/bin)
  • Firebase CLI (/opt/firebase-cli)

If you are using this image with GitLab pipeline, you can generate an code coverage report
Make your .gitlab-ci.yml looks like the example bellow

tests:
  image: alvarocda/flutter
  stage: test
  script:
  - flutter analyze
  - flutter test --coverage  # Test app and generate the coverage file
  - lcov --list coverage/lcov.info # Parse the file to genhtml
  - genhtml coverage/lcov.info --output=coverage # Generate detailed report
  artifacts:
    paths:
    - coverage # Upload the report so you can download and view

To show the percentage of covered code in GitLab

  • Go to project settings
  • Open CI / CD option
  • General Pipelines
  • In Test coverage parsing put the following regex:
\s*lines\.*:\s*([\d\.]+%)