AndroidLintReporter

This is a Gradle Plugin to report Android Lint and Detekt result back to Github Pull Request. This is targeted for someone who's doing Android Development and using Github who wants to run Android Lint and Detekt on their pull request. (Currently, this plugin assumes the usage of both Android Lint and Detekt)

Here is how it works using Github Actions (it can be used in other CI as well).

( 1 ) When a Pull Request is created, a Github Actions will be triggered:

( 2 ) This will produce this lint report, and it will be reported back in the Pull Request:

then you can fix the lint warnings and push again

How to Setup

There are a couple of steps needed to set up everything.

1. Github Actions

First, we need to set up a Github Action trigger to run Detekt and Android Lint.

Add a file in .github/workflows/run-lint.yml (you can name it anything) in the root of your project:

name: Android Pull Request & Master CI

on:
  pull_request:
    branches:
      - 'master'
  push:
    branches:
      - 'master'

jobs:
  lint:
    name: Run Lint
    runs-on: ubuntu-18.04

    steps:
      - uses: actions/checkout@v1
      - name: setup JDK 1.8
        uses: actions/setup-java@v1
        with:
          java-version: 1.8
      - name: Run detekt
        run: ./gradlew detekt
        continue-on-error: true
      - name: Run Android Lint
        run: ./gradlew lint
      - name: Run Android Lint Reporter to report Lint and Detekt result to PR 
        env:
          PR_NUMBER: ${{ github.event.number }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          ./gradlew report -PgithubPullRequestId=$PR_NUMBER -PgithubToken=$GITHUB_TOKEN

How to get Github Token

Go to Github's Settings --> Developer settings --> Generate new token.

Go to Personal Access Token, and click Generate new token:

Check for Repo (all) and workflow

It's better to make a bot account and use the token of the bot account

How to add GITHUB_TOKEN

After generating the token, paste it under Settings --> Secrets:

2. Add repositories and classpath:

build.gradle:

Groovy

buildscript {
  repositories {
    maven {
      url "https://plugins.gradle.org/m2/"
    }
  }
  dependencies {
    classpath "gradle.plugin.com.worker8.android_lint_reporter:android_lint_reporter:<latest_version>"
  }
}

Kotlin

buildscript {
  repositories {
    maven {
      url = uri("https://plugins.gradle.org/m2/")
    }
  }
  dependencies {
    classpath("gradle.plugin.com.worker8.android_lint_reporter:android_lint_reporter:<latest_version>")
  }
}

Note: latest_version can be found here: https://plugins.gradle.org/plugin/com.worker8.android_lint_reporter

3. Add the plugin dependency:

app/build.gradle:

Groovy

plugins {
    id "com.worker8.android_lint_reporter"
}
android_lint_reporter {
    lintFilePath = "./app/build/reports/lint-results.xml"
    detektFilePath = ".app/build/reports/detekt_reports.xml"
    githubOwner = "worker8"
    githubRepositoryName = "AndroidLintReporter"
    showLog = true // optional - default to false, show extra information, will slow things down
}

Kotlin

plugins {
    id("com.worker8.android_lint_reporter")
}
android_lint_reporter {
    lintFilePath = "./app/build/reports/lint-results.xml"
    detektFilePath = ".app/build/reports/detekt_reports.xml"
    githubOwner = "worker8"
    githubRepositoryName = "AndroidLintReporter"
    showLog = true // optional - default to false, show extra information, will slow things down
}

4. You are ready!

Try making a pull request, and you should see the Github Actions running under "Check" tab. When it's done, you should see your lint report being posted back to your pull request.

Development

For those who is interested to contribute or fork it. Here's a blog post I wrote explaining the source code of this repo: https://bloggie.io/@_junrong/the-making-of-android-lint-reporter

Suggested IDE for development:

Download Intellij Community Edition for free and open this project.

Setup Github Personal Access Token(PAT)

Prepare a file local.properties based on local.properties.TEMPLATE in the root directory of this project, with the following content:

github_token=<replace with your Github Personal Access Token (PAT)>
github_owner=<replace with your Github Owner Name>
github_repository=<replace with your Github Repository Name>

You can test your Github API using your PAT using cURL:

curl -H "Authorization: token <github_token>" -H "Content-Type: application/json" --data '{"body":"test123abc"}' -X POST https://api.github.com/repos/<github_token>/<GITHUB_PROJECT>/issues/<PR_OR_ISSUE_NUMBER>/comments

run Functional Test The gist of this plugin is located in the class of AndroidLintReporterPlugin.kt. After setting everything up, you can run the test using this command:

./gradlew functionalTest

To deploy:

Download secrets from https://plugins.gradle.org/ after logging in.
up version in build.gradle.kts
then run ./gradlew publishPlugin

Changelog

Refer to https://github.com/worker8/AndroidLintReporter/releases

License

Copyright 2020 Tan Jun Rong

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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