GitHub Actions workflow for android projects with telegram bots integration : This workflow can notify about pushes and builds in telegram chats and can also send apk to chats

android.yml

#you need to setup 2 secrets in the repository
#1. TELEGRAM_BOT_TOKEN - get it from here: https://core.telegram.org/bots#6-botfather
#2. TELEGRAM_CHAT_ID - run /help or any other bot command from the bot chat or group and 
#     run this command on terminal: curl -s https://api.telegram.org/bot<token>/getUpdates | jq '.result[0].message.chat.id'
#
#> to generate a continuous apk in release add "#genapk" in yor commit message
#> to get the apk to your chat add "#genapk-chat" in yor commit message
#NOTE: in telegram messages replace line break (\n) with (%0A)

name: Android CI

on:
  push:
    branches:
      - master

jobs:
  build:
    name: Main
    runs-on: ubuntu-latest
    steps:

      - name: Clone repo
        uses: actions/checkout@v1

      - name: Get commit details
        id: commit_info
        run: |
          echo ::set-output name=commit_count::$(git rev-list --count HEAD)
          FILES_CHANGED="$(git diff-tree --no-commit-id --name-status --diff-filter=ADMR -r ${{ github.sha }})"
          FILES_CHANGED="${FILES_CHANGED//$'A\t'/[A]~ }"
          FILES_CHANGED="${FILES_CHANGED//$'D\t'/[D]~ }"
          FILES_CHANGED="${FILES_CHANGED//$'M\t'/[M]~ }"
          FILES_CHANGED="${FILES_CHANGED//$'R\t'/[R]~ }"
          FILES_CHANGED="${FILES_CHANGED//'%'/'%25'}"
          FILES_CHANGED="${FILES_CHANGED//$'\n'/'%0A'}"
          FILES_CHANGED="${FILES_CHANGED//$'\r'/'%0D'}"
          echo ::set-output name=files_changed::$FILES_CHANGED

      - name: Send a message about the latest commit
        run: |
          curl \
          -d chat_id=${{ secrets.TELEGRAM_CHAT_ID }} \
          -d parse_mode=HTML \
          -d text=\
          "↗️ <b>PUSH</b>%0A\
          <b>was made at:</b> ${{ github.repository }}%0A\
          <b>by:</b> <u>${{ github.actor }}</u>%0A\
          <b>commit #:</b> ${{ steps.commit_info.outputs.commit_count }}%0A\
          <b>commit message:</b>%0A\
          ${{ github.event.head_commit.message }}%0A\
          %0A\
          <b>files changed:</b>%0A\
          <pre>${{  steps.commit_info.outputs.files_changed }}</pre>%0A\
          %0A\
          <b>url:</b> https://github.com/${{ github.repository }}/commit/${{ github.sha }}" \
          https://api.telegram.org/bot${{ secrets.TELEGRAM_BOT_TOKEN }}/sendMessage

      - name: set up JDK 1.8
        uses: actions/setup-java@v1
        with:
          java-version: 1.8

      - name: Cache gradle stuff
        uses: actions/cache@v2
        with:
          path: |
            ~/.gradle/caches
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
          restore-keys: |
            ${{ runner.os }}-gradle-

      - name: Run Gradle Build
        run: ./gradlew build

      - name: Run Gradle assembleDebug
        run: ./gradlew assembleDebug

      - name: Delete previous continuous release
        if: "contains(github.event.head_commit.message, '#genapk')"
        run: |
          if git show-ref --tags | egrep -q "refs/tags/continuous"
          then
              release_query=$(curl -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -s \
              https://api.github.com/repos/${{ github.repository }}/releases \
              | jq '. | map(select(.tag_name == "continuous"))[0]')

              curl -i -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -X DELETE \
              https://api.github.com/repos/${{ github.repository }}/releases/assets/$(echo $release_query | jq .assets[0].id)
              curl -i -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -X DELETE \
              https://api.github.com/repos/${{ github.repository }}/releases/$(echo $release_query | jq .id)
              git tag -d continuous
              curl -i -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -X DELETE \
              https://api.github.com/repos/${{ github.repository }}/git/refs/tags/continuous
              sleep 1 #required else next action will fail
          else 
              echo "tag not found"
          fi

      - name: Create Release
        if: "contains(github.event.head_commit.message, '#genapk')"
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: continuous
          release_name: continuous-build-r${{ steps.commit_info.outputs.commit_count }}
          draft: false
          prerelease: true

      - name: Upload Release Asset
        if: "contains(github.event.head_commit.message, '#genapk')"
        id: upload-release-asset
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: ./app/build/outputs/apk/debug/app-debug.apk
          asset_name: app-debug.apk
          asset_content_type: application/zip

      - name: Send a message about the release
        if: "contains(github.event.head_commit.message, '#genapk')"
        run: |
          curl \
          -d chat_id=${{ secrets.TELEGRAM_CHAT_ID }} \
          -d parse_mode=HTML \
          -d text=\
          "📱 <b>Debug Apk released</b>%0A\
          url: https://github.com/${{ github.repository }}/releases/tag/continuous" \
          "https://api.telegram.org/bot${{ secrets.TELEGRAM_BOT_TOKEN }}/sendMessage"

      - name: Send apk to chat
        if: "contains(github.event.head_commit.message, '#genapk-chat')"
        run: |
          curl \
          -F chat_id=${{ secrets.TELEGRAM_CHAT_ID }} \
          -F parse_mode=HTML \
          -F caption=\
          "📱 <b>Debug Apk released</b> \
          url: https://github.com/${{ github.repository }}/releases/tag/continuous" \
          -F document=@"./app/build/outputs/apk/debug/app-debug.apk" \
          https://api.telegram.org/bot${{ secrets.TELEGRAM_BOT_TOKEN }}/sendDocument

      - name: Send a message if build fails
        if: failure()
        run: |
          curl \
          -d chat_id=${{ secrets.TELEGRAM_CHAT_ID }} \
          -d parse_mode=HTML \
          -d text=\
          "❌ <b><u>BUILD FAILED!!!</u></b>%0A\
          <b>job url:</b> https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}" \
          "https://api.telegram.org/bot${{ secrets.TELEGRAM_BOT_TOKEN }}/sendMessage"