name: Test Coverage
on:
  pull_request:
  push:
    branches:
      - master
      - release/**

jobs:
  split-test-files:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Create a file with all the pkgs
        run: go list ./... > pkgs.txt
      - name: Split pkgs into 4 files
        run: split -n l/4 --additional-suffix=.txt ./pkgs.txt
      # cache multiple
      - uses: actions/upload-artifact@v2
        with:
          name: "${{ github.sha }}-aa"
          path: ./xaa.txt
      - uses: actions/upload-artifact@v2
        with:
          name: "${{ github.sha }}-ab"
          path: ./xab.txt
      - uses: actions/upload-artifact@v2
        with:
          name: "${{ github.sha }}-ac"
          path: ./xac.txt
      - uses: actions/upload-artifact@v2
        with:
          name: "${{ github.sha }}-ad"
          path: ./xad.txt

  test-coverage-part-1:
    runs-on: ubuntu-latest
    needs: split-test-files
    steps:
      - uses: actions/checkout@v2
      - uses: technote-space/get-diff-action@v4
        with:
          PATTERNS: |
            **/**.go
            go.mod
            go.sum
      - uses: actions/download-artifact@v2
        with:
          name: "${{ github.sha }}-aa"
        if: env.GIT_DIFF
      - name: test & coverage report creation
        run: |
          cat xaa.txt | xargs go test -mod=readonly -timeout 8m -race -coverprofile=coverage.txt -covermode=atomic
        if: env.GIT_DIFF
      - uses: codecov/codecov-action@v1.0.13
        with:
          file: ./coverage.txt
        if: env.GIT_DIFF

  test-coverage-part-2:
    runs-on: ubuntu-latest
    needs: split-test-files
    steps:
      - uses: actions/checkout@v2
      - uses: technote-space/get-diff-action@v4
        with:
          PATTERNS: |
            **/**.go
            go.mod
            go.sum
      - uses: actions/download-artifact@v2
        with:
          name: "${{ github.sha }}-ab"
        if: env.GIT_DIFF
      - name: test & coverage report creation
        run: |
          cat xab.txt | xargs go test -mod=readonly -timeout 5m -race -coverprofile=coverage.txt -covermode=atomic
        if: env.GIT_DIFF
      - uses: codecov/codecov-action@v1.0.13
        with:
          file: ./coverage.txt
        if: env.GIT_DIFF

  test-coverage-part-3:
    runs-on: ubuntu-latest
    needs: split-test-files
    steps:
      - uses: actions/checkout@v2
      - uses: technote-space/get-diff-action@v4
        with:
          PATTERNS: |
            **/**.go
            go.mod
            go.sum
      - uses: actions/download-artifact@v2
        with:
          name: "${{ github.sha }}-ac"
        if: env.GIT_DIFF
      - name: test & coverage report creation
        run: |
          cat xac.txt | xargs go test -mod=readonly -timeout 10m -race -coverprofile=coverage.txt -covermode=atomic
        if: env.GIT_DIFF
      - uses: codecov/codecov-action@v1.0.13
        with:
          file: ./coverage.txt
        if: env.GIT_DIFF

  test-coverage-part-4:
    runs-on: ubuntu-latest
    needs: split-test-files
    steps:
      - uses: actions/checkout@v2
      - uses: technote-space/get-diff-action@v4
        with:
          PATTERNS: |
            **/**.go
            go.mod
            go.sum
      - uses: actions/download-artifact@v2
        with:
          name: "${{ github.sha }}-ad"
        if: env.GIT_DIFF
      - name: test & coverage report creation
        run: |
          cat xad.txt | xargs go test -mod=readonly -timeout 5m -race -coverprofile=coverage.txt -covermode=atomic
        if: env.GIT_DIFF
      - uses: codecov/codecov-action@v1.0.13
        with:
          file: ./coverage.txt
        if: env.GIT_DIFF