In the fast-paced world of software development, maintaining high code quality is crucial for building robust applications. Automated code quality checks ensure consistency, reduce errors, and enhance maintainability. Bitbucket Pipelines, Atlassian’s CI/CD tool, seamlessly integrates into your workflow, allowing you to automate these checks efficiently.

# Setting Up Your Repository

Before diving into code quality tools, set up your repository in Bitbucket:

1. Connect Your Repository: Ensure your project is hosted on Bitbucket.

2. Create Pipeline Configuration: Add a bitbucket-pipelines.yml file at the root of your repository.

Example configuration:

image: node:lts

pipelines:

  default:

    - step:

        script:

          - npm install

# Implementing Code Quality Checks

## Tools Overview

• ESLint: Lints JavaScript/TypeScript code.

• Pylint: Analyzes Python code quality.

• Checkmarx: Detects security vulnerabilities.

### Integrating ESLint

Install ESLint and configure rules in .eslintrc.json. Integrate into your pipeline:

image: node:lts

pipelines:

  default:

    - step:

        script:

          - npm install eslint -g

          - eslint src/

### Pylint Integration

For Python projects:

image: python:3.8

pipelines:

  default:

    - step:

        script:

          - pip install pylint

          - pylint src/

### Checkmarx Setup

Use the Checkmarx CLI to scan code:

image: java:openjdk-17

pipelines:

  default:

    - step:

        script:

          - curl -LO https://github.com/checkmarx/ast-cli/releases/download/v2.8.0/cmxAstCli-linux.zip

          - unzip cmxAstCli-linux.zip && chmod +x cmxAstCli

          - ./cmxAstCli --project-name "MyProject" --scan-path src/

# Configuration and Customization

## Parallel Execution

Run tasks concurrently:

pipelines:

  default:

    - parallel:

        - step: { script: npm test }

        - step: { script: npm run lint }

## Pipeline Steps Ordering

Define sequential steps for dependencies:

steps:

  - step: { name: install, script: npm install }

  - step: { name: test, depends-on: install, script: npm test }

## Caching Dependencies

Speed up builds with caching:

pipelines:

  default:

    cache: { key: v1, paths: node_modules/ }

## Notifications

Set up notifications via Slack or email for build statuses.

# Common Issues and Best Practices

• Long Build Times: Optimize by parallelizing tasks.

• False Positives: Review linting rules to avoid unnecessary warnings.

Best Practices:

• Make checks mandatory in CI.

• Use thresholds to fail builds on critical issues.

• Regularly update tools and configurations.

# Conclusion

Automating code quality with Bitbucket Pipelines enhances development efficiency and product quality. By integrating various tools, customizing pipelines, and following best practices, teams can maintain high standards seamlessly.

Continue exploring advanced techniques like performance testing and containerization to further optimize your CI/CD process.