ci.yml

name: CI

on:
  pull_request:
  push:
    branches:
      - main

jobs:
  build:
    name: "Build & Test"
    runs-on: ubuntu-latest
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1

      - uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # v6.1.0
        with:
          go-version-file: "go.mod"

      - name: Build
        run: make build

      - name: Unit tests
        run: make test

  helm-install:
    name: helm install
    needs: [build]
    runs-on: ${{ matrix.os }}
    timeout-minutes: 20
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        helm-version: [v3.18.6, v3.19.0, v4.0.0]

    steps:
      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1

      - uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # v6.1.0
        with:
          go-version-file: "go.mod"

      - name: Setup Helm
        uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4.3.1
        with:
          version: ${{ matrix.helm-version }}

      - name: helm plugin install
        run: helm plugin install .

  integration-tests:
    name: Integration Tests
    needs: [build]
    runs-on: ubuntu-latest
    timeout-minutes: 20
    strategy:
      matrix:
        helm-version: [v3.18.6, v3.19.0, v4.0.0]

    steps:
      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
        with:
          fetch-depth: 0

      - uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # v6.1.0
        with:
          go-version-file: "go.mod"

      - name: Setup Helm
        uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4.3.1
        with:
          version: ${{ matrix.helm-version }}

      - name: Install plugin
        run: helm plugin install .

      - name: Setup test repository
        id: setup
        run: |
          TEST_DIR=$(mktemp -d)
          cd "$TEST_DIR"
          git init
          git config user.email "test@example.com"
          git config user.name "Test User"
          mkdir -p charts

          # Copy all test charts from repository
          cp -r "$GITHUB_WORKSPACE/test-charts/"* charts/

          git add .
          git commit -m "Initial commit"
          echo "test_dir=$TEST_DIR" >> $GITHUB_OUTPUT

      - name: Detect no changes between same commit
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: >
            helm git-diff
            --base HEAD
            --current HEAD
            --chart-dir charts
            test-chart
          should-be-empty: true

      - name: Commit replica count change
        run: |
          cd ${{ steps.setup.outputs.test_dir }}
          sed -i 's/replicaCount: 1/replicaCount: 3/' charts/test-chart/values.yaml
          git add charts/test-chart/values.yaml
          git commit -m "Increase replica count to 3"

      - name: Verify replica count appears in diff
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: >
            helm git-diff
            --base HEAD~1
            --current HEAD
            --chart-dir charts
            test-chart
          should-contain: "replicas: 3"

      - name: Auto-detect changed charts
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: helm git-diff --base HEAD~1 --current HEAD --chart-dir charts
          should-contain: "test-chart"

      - name: Commit image tag change
        run: |
          cd ${{ steps.setup.outputs.test_dir }}
          sed -i 's/tag: "1.36"/tag: "1.37"/' charts/test-chart/values.yaml
          git add charts/test-chart/values.yaml
          git commit -m "Update busybox tag to 1.37"

      - name: Verify image tag appears in diff
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: helm git-diff --base HEAD~1 --current HEAD --chart-dir charts
          should-contain: "1.37"

      - name: Modify values for uncommitted changes test
        run: |
          cd ${{ steps.setup.outputs.test_dir }}
          sed -i 's/replicaCount: 3/replicaCount: 5/' charts/test-chart/values.yaml

      - name: Test uncommitted changes detection
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: >
            helm git-diff
            --base HEAD
            --chart-dir charts
            test-chart
          should-contain: "replicas: 5"

      - name: Cleanup uncommitted changes
        run: |
          cd ${{ steps.setup.outputs.test_dir }}
          git checkout charts/test-chart/values.yaml

      - name: Test --values flag
        run: |
          cd ${{ steps.setup.outputs.test_dir }}
          # Create two different values files
          echo "replicaCount: 10" > values-10.yaml
          echo "replicaCount: 20" > values-20.yaml
          # Test that --values is actually being used by checking output contains expected value
          # Use helm template directly to verify values work
          helm template release-name charts/test-chart --values values-10.yaml | grep -q "replicas: 10"
          echo "Values file works with helm template"

      - name: Test --set flag shows no changes
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: >
            helm git-diff
            --base HEAD
            --current HEAD
            --chart-dir charts
            --set replicaCount=7
            test-chart
          should-be-empty: true

      - name: Test multiple --set flags shows no changes
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: >
            helm git-diff
            --base HEAD
            --current HEAD
            --chart-dir charts
            --set replicaCount=8
            --set image.tag=2.0
            test-chart
          should-be-empty: true

      - name: Test library chart is skipped
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: >
            helm git-diff
            --base HEAD
            --current HEAD
            --chart-dir charts
            test-library
          should-contain: "skipped (library chart)"

      - name: Test chart with local file dependencies
        uses: ./.github/actions/assert-output
        with:
          working-directory: ${{ steps.setup.outputs.test_dir }}
          command: >
            helm git-diff
            --base HEAD
            --current HEAD
            --chart-dir charts
            test-with-deps
          should-be-empty: true

      - name: Test --fail-on-diff flag with differences
        working-directory: ${{ steps.setup.outputs.test_dir }}
        run: |
          CMD="helm git-diff --base HEAD~1 --current HEAD --chart-dir charts"
          CMD="$CMD --fail-on-diff test-chart"
          if $CMD; then
            echo "--fail-on-diff should have exited with code 1"
            exit 1
          fi

      - name: Test --fail-on-diff flag without differences
        working-directory: ${{ steps.setup.outputs.test_dir }}
        run: helm git-diff --base HEAD --current HEAD --chart-dir charts --fail-on-diff test-chart

      - name: Cleanup test directory
        if: always()
        run: rm -rf ${{ steps.setup.outputs.test_dir }}