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Azure DevOps Pipelines

To use DCM with Azure DevOps CI/CD, create an azure-pipelines.yml file in the root of your application (or use the Azure DevOps pipeline setup in the dashboard) and add a step that runs DCM commands.

AzureDevOps Pipeline AzureDevOps pipeline editor AzureDevOps pipeline Yaml file

Here’s how you can set up a pipeline configuration for Azure DevOps:

trigger:
  branches:
    exclude:
      - '*'

pr:
  branches:
    include:
      - main

pool:
  vmImage: 'ubuntu-latest'

jobs:
- job: Code_Quality
  displayName: 'Code Quality'
  steps:
  - script: |
      set -e  # Exit on any command failure

      # Install Flutter
      echo "Installing Flutter..."
      sudo apt-get update
      sudo apt-get install -y git curl
      git clone https://github.com/flutter/flutter.git -b stable --depth 1
      export PATH="$PATH:`pwd`/flutter/bin"
      flutter doctor
      flutter pub get

      # Install DCM
      echo "Installing DCM..."
      sudo apt-get install -y --no-install-recommends wget gnupg2
      wget -qO- https://dcm.dev/pgp-key.public | gpg --dearmor -o /usr/share/keyrings/dcm.gpg
      echo 'deb [signed-by=/usr/share/keyrings/dcm.gpg arch=amd64] https://dcm.dev/debian stable main' | sudo tee /etc/apt/sources.list.d/dart_stable.list
      sudo apt-get update
      sudo apt-get install -y dcm=1.27.1-1  # Adjust DCM version as needed

      # Verify DCM installation
      echo "Verifying DCM installation..."
      dcm --version

      # Run DCM Analysis
      echo "Running DCM Analysis..."
      set +e  # Do not exit on error
      dcm run --analyze --unused-code --reporter=checkstyle lib > checkstyle-result.xml
      DCM_EXIT_CODE=$?
      DCM_ERROR_MESSAGE=$(dcm run --analyze --unused-code lib 2>&1)
      echo "DCM_EXIT_CODE=$DCM_EXIT_CODE" > dcm_exit_code.txt
      echo "DCM_ERROR_MESSAGE=\"$DCM_ERROR_MESSAGE\"" > dcm_error_message.txt
      set -e  # Exit on any command failure

      # Write error message to Markdown file
      if [ $DCM_EXIT_CODE -ne 0 ]; then
        echo "# DCM Analysis Failed" > $(System.DefaultWorkingDirectory)/dcm_error_summary.md
        echo "DCM Analysis failed with exit code $DCM_EXIT_CODE." >> $(System.DefaultWorkingDirectory)/dcm_error_summary.md
        echo "## Error Message" >> $(System.DefaultWorkingDirectory)/dcm_error_summary.md
        echo "\`\`\`" >> $(System.DefaultWorkingDirectory)/dcm_error_summary.md
        echo "$DCM_ERROR_MESSAGE" >> $(System.DefaultWorkingDirectory)/dcm_error_summary.md
        echo "\`\`\`" >> $(System.DefaultWorkingDirectory)/dcm_error_summary.md
      fi
    displayName: 'Install Flutter, Install DCM, and Run DCM Analysis'
    env:
      DCM_CI_KEY: $(DCM_CI_KEY)
      DCM_EMAIL: $(DCM_EMAIL)

  - script: |
      if [ -f checkstyle-result.xml ]; then
        echo "checkstyle-result.xml exists, proceeding to publish."
      else
        echo "checkstyle-result.xml does not exist, skipping publish step."
        exit 1
      fi
    displayName: 'Check for Checkstyle Result'

  - task: PublishBuildArtifacts@1
    inputs:
      PathtoPublish: 'checkstyle-result.xml'
      ArtifactName: 'CheckstyleReports'
      publishLocation: 'Container'
    condition: succeededOrFailed()
    displayName: 'Publish Checkstyle Report'

  - script: |
      source dcm_exit_code.txt
      source dcm_error_message.txt
      if [ "$DCM_EXIT_CODE" -ne 0 ]; then
        echo "DCM Analysis failed with exit code $DCM_EXIT_CODE. Error message: $DCM_ERROR_MESSAGE"
        ##vso[task.uploadsummary]$(System.DefaultWorkingDirectory)/dcm_error_summary.md
        ##vso[task.logdetail id=dcm_log;name=DCM Analysis Log;type=Build;order=1;state=Completed]DCM Analysis log details
        ##vso[task.addattachment type=Distributedtask.Core.Summary;name=DCM Analysis Summary;]$(System.DefaultWorkingDirectory)/dcm_error_summary.md
        exit $DCM_EXIT_CODE
      fi
    displayName: 'Fail Build if DCM Analysis Failed'
    condition: always()

Explanation

Trigger Configuration:
The pipeline triggers on pull requests (PRs) targeting the main branch.
Excludes all other branches from triggering the pipeline.
Pool Configuration:
- Uses the ubuntu-latest virtual machine image for running the pipeline.
Job: Code_Quality:
- Display Name: 'Code Quality'
- Steps:
  1. Install Flutter:
    - Updates the package list.
    - Clones the Flutter repository.
    - Adds Flutter to the PATH.
    - Runs flutter doctor to verify the installation.
    - Runs flutter pub get to fetch Dart packages.
  2. Install DCM:
    - Installs necessary dependencies (wget, gnupg2).
    - Downloads and installs DCM's GPG key.
    - Adds the DCM repository configuration.
    - Updates the package list.
    - Installs DCM (version 1.27.1-1).
  3. Verify DCM Installation:
    - Checks the installed version of DCM to ensure it's correctly installed.
  4. Run DCM Analysis:
    - Runs the DCM analysis and captures the exit code and error message.
    - Logs a message if DCM exits with a non-zero code.
    - Writes the error message to a Markdown file if the DCM analysis fails.
  5. Check for Checkstyle Result:
    - Verifies if the checkstyle-result.xml file exists before attempting to publish it.
    - Skips the publish step if the file does not exist.
  6. Publish Checkstyle Report:
    - Publishes the checkstyle-result.xml file as a build artifact named CheckstyleReports.
    - Ensures the artifact is published regardless of the previous job's success or failure.
  7. Fail Build if DCM Analysis Failed:
    - Sources the captured exit code and error message.
    - Logs the failure and error message.
    - Uploads the Markdown summary to the build summary.
    - Logs detailed information and attaches the summary file.
    - Fails the build with the captured error message.