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How to do code style checking and normalization in GitLab

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Release: 2023-10-25 08:38:15
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How to do code style checking and normalization in GitLab

How to check and standardize code style in GitLab

The style and specification of code are very important for the development of team projects. Unified code specifications can improve code readability, maintainability and scalability, and reduce potential bugs and errors. In team development, by using version control tools such as GitLab to manage project code, code style checking and standardization can be easily performed.

This article will introduce how to perform code style inspection and standardization in GitLab, and provide specific code examples.

  1. Configuring code checking tools
    First, you need to select a suitable code checking tool. Common code inspection tools include ESLint (for JavaScript), RuboCop (for Ruby), Pylint (for Python), etc. These tools all support integrated use in GitLab.

Taking ESLint as an example, first create an .eslintrc.js file in the project root directory to configure ESLint rules and configuration items. The rules to be used can be specified in the form of comments or configuration files, for example:

module.exports = {
  env: {
    browser: true,
    node: true
  },
  extends: [
    'eslint:recommended',
    'plugin:react/recommended'
  ],
  plugins: ['react'],
  parserOptions: {
    ecmaVersion: 6,
    sourceType: 'module',
    ecmaFeatures: {
      jsx: true
    }
  },
  rules: {
    // 指定代码规范
    'indent': ['error', 2],
    'semi': ['error', 'always'],
    'quotes': ['error', 'single']
  }
};
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  1. Configuring code inspection tasks in GitLab CI/CD
    GitLab supports the use of CI/CD pipelines to automate multiple executions tasks, including code style inspection.

Create a .gitlab-ci.yml file in the project root directory to configure the CI/CD pipeline. Assuming that our project uses GitLab Runner to perform CI/CD tasks, you can add a code inspection task in this file, for example:

stages:
  - lint

lint:
  stage: lint
  script:
    - eslint --ext .js --ignore-pattern dist/ src/
  only:
    - master
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In the above configuration, we defined a task named lint, in this The eslint command was run in the task to check the .js files in the project (excluding the dist folder), and only the master branch was checked.

  1. Run code inspection
    After submitting the code in GitLab, GitLab CI/CD will automatically trigger the code inspection task. We can view the execution status and results of the task in GitLab's CI/CD page.

If there is a part of the code that does not comply with the specification, the inspection task will output an error message, and the specific error location and cause will be displayed in the task execution log. Developers can use this information to fix problems in their code.

  1. Standardized code
    According to the results of code inspection, developers can standardize the code according to the actual situation. This includes adjusting indentation, fixing symbol usage errors, unifying the way references are used, etc. Normalization can be done by manually modifying the code, or it can be assisted by using automated tools.

For example, for ESLint, you can use the eslint . --fix command to automatically fix some errors.

script:
  - eslint . --fix --ext .js --ignore-pattern dist/ src/
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Summary:
Code style checking and standardization in GitLab is a very useful development tool. By configuring code inspection tools and GitLab CI/CD, teams can easily conduct routine code specification checks and automated repairs, improving code quality and development efficiency.

The above are the basic steps and examples for code style inspection and standardization in GitLab. I hope it will be helpful to readers. Readers can make appropriate adjustments and applications according to specific needs and project characteristics.

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