// 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.

// fossa-verify.groovy
// checks a single repo against fossa

pipeline {

  /* no label, executor is determined by JJB */
  agent {
    label "${params.executorNode}"
  }

  // Set so that fossa will know where to run golang tools from
  environment {
    PATH = "$PATH:/usr/lib/go-1.12/bin:/usr/local/go/bin/:$WORKSPACE/go/bin"
    GOPATH = "$WORKSPACE/go"
  }

  options {
      timeout(15)
  }

  stages {

    stage ("Clean workspace") {
      steps {
        sh 'rm -rf *'
      }
    }

    stage('Checkout') {
      steps {
        sh returnStdout: true, script: """
          #!/usr/bin/env bash
          set -eu -o pipefail

          echo "Cloning repo: ${gitUrl}"
          git clone "${gitUrl}"
          pushd "$projectName"
          echo "Checking out Gerrit patchset: ${GERRIT_REFSPEC}"
          git fetch ${gitUrl} ${GERRIT_REFSPEC} && git checkout FETCH_HEAD
          popd
        """

        // Used later to set the branch/tag
        script {
          git_tag_or_branch = sh(script:"cd $projectName; if [[ \$(git tag -l --points-at HEAD) ]]; then git tag -l --points-at HEAD; else echo ${branchName}; fi", returnStdout: true).trim()
        }
      }
    }

    stage ("Prepare") {
      steps {

        // change the path tested if for golang projects which expect to be found in GOPATH
        script {
          test_path = sh(script:"if [ -f \"$projectName/Gopkg.toml\" ] || [ -f \"$projectName/go.mod\" ] ; then echo $WORKSPACE/go/src/github.com/opencord/$projectName; else echo $projectName; fi", returnStdout: true).trim()
        }

        sh returnStdout: true, script: """
          #!/usr/bin/env bash
          set -eu -o pipefail


          if [ -f "$projectName/package.json" ]
          then
            echo "Found '$projectName/package.json', assuming a Node.js project, running npm install"
            pushd "$projectName"
            npm install
            popd
          elif [ -f "$projectName/Gopkg.toml" ]
          then
            echo "Found '$projectName/Gopkg.toml', assuming a golang project using dep"
            mkdir -p "\$GOPATH/src/github.com/opencord/"
            mv "$WORKSPACE/$projectName" "$test_path"
            pushd "$test_path"
            dep ensure
            popd
          fi
        """
      }
    }

    stage ("fossa") {
      steps {
        // catch any errors that occur so that logs can be saved in the next stage
        // docs: https://jenkins.io/doc/pipeline/steps/workflow-basic-steps/#catcherror-catch-error-and-set-build-result-to-failure
        catchError {
          withCredentials([string(credentialsId: 'fossa-api-key', variable: 'FOSSA_API_KEY')]) {
            sh returnStdout: true, script: """
              #!/usr/bin/env bash
              set -eu -o pipefail

              echo "Creating debug output directory"
              mkdir -p "$WORKSPACE/debug"

              echo "Download/install fossa CLI tool"
              curl -H 'Cache-Control: no-cache' -O https://raw.githubusercontent.com/fossas/fossa-cli/master/install.sh
              mkdir -p "$WORKSPACE/go/bin"
              bash install.sh -b "$WORKSPACE/go/bin"

              echo "Fossa version:"
              fossa -v

              echo "Testing project: $projectName located in $test_path"
              pushd "$test_path"

              echo "Run 'fossa init'"
              fossa init --no-ansi --verbose

              echo "Contents of .fossa.yml generated by 'fossa init':"
              cat .fossa.yml

              echo "Run 'fossa analyze'"
              fossa analyze --no-ansi --verbose \
                            -T "$fossaTeam" \
                            -t "$projectName" \
                            -L "$GERRIT_CHANGE_URL" \
                            -b "$git_tag_or_branch" \
                            -r "$GERRIT_CHANGE_NUMBER/$GERRIT_PATCHSET_NUMBER"

              echo "Get FOSSA test results with 'fossa test'"
              fossa test --no-ansi --verbose \
                            -T "$fossaTeam" \
                            -t "$projectName" \
                            -L "$GERRIT_CHANGE_URL" \
                            -b "$git_tag_or_branch" \
                            -r "$GERRIT_CHANGE_NUMBER/$GERRIT_PATCHSET_NUMBER"

              popd
            """
          }
        }
      }
    }

    stage ("Save Logs") {
      steps {
        sh returnStdout: true, script: """
            echo "Logs:"
            ls -l $WORKSPACE/debug
          """
        archiveArtifacts artifacts:'debug/*.log'
      }
    }
  }
}