How to use a pre-commit hook script to automatically check and correct problems that do not comply with the latest PHP code specifications before code submission?

How to use a pre-commit hook script to automatically check and correct problems that do not comply with the latest PHP code specifications before code submission?

In the software development process, code quality is a very important aspect. A good code specification can make the code easy to read, understand and maintain. For example, for PHP code, following PSR (PHP Standard Recommendations) specifications can improve the readability and maintainability of the code.

In order to ensure the code quality before team members submit the code, you can use the pre-commit (pre-commit) hook script in Git hooks to automatically check and correct problems that do not comply with the latest PHP code specifications. This allows team members to instantly identify and resolve code specification issues before committing code, improving overall code quality.

The pre-commit hook script can be any executable script file that can be run before each commit. In this example, we will use the PHP_CodeSniffer tool to check code specifications and PHP-CS-Fixer to automatically fix problems.

The following is an example pre-commit hook script that uses PHP_CodeSniffer and PHP-CS-Fixer:

#!/bin/sh

# Run PHP_CodeSniffer
./vendor/bin/phpcs --standard=PSR2 --colors --ignore=vendor/,tests/ --report=emacs

# Run PHP-CS-Fixer
./vendor/bin/php-cs-fixer fix --rules=@PSR2 --using-cache=no --verbose --dry-run

# Check the exit code of the previous commands
if [ $? -ne 0 ]; then
  echo "Code style check failed. Please fix the issues before committing."
  exit 1
fi

The above script first uses PHP_CodeSniffer to check code specifications, -- standard=PSR2 means to use the PSR2 specification for checking, and use the --ignore=vendor/,tests/ parameter to ignore the vendor directory and tests directory. --colors means to use colored output, --report=emacs means to use Emacs' easy-to-read report format.

Next, the script uses PHP-CS-Fixer to automatically fix code specification issues. --rules=@PSR2 means using the PSR2 specification for repair, --using-cache=no means not using the cache, --verbose --dry-run Indicates outputting detailed repair information but not actually modifying the file.

Finally, the script checks the exit codes of the two commands above. If there are any problems, the script will print an error message and exit.

To use this pre-commit hook script, you need to save it as a .git/hooks/pre-commit file and make it executable. You also need to install PHP_CodeSniffer and PHP-CS-Fixer. In the above script, we assume that these two tools have been installed through Composer in the vendor/bin directory.

When you submit code, this pre-commit hook script will automatically run and check code specifications. If there are any non-conformance issues, the script will print the corresponding error message on the command line and prevent the code from being submitted. You need to resolve these issues before you can successfully submit your code.

By using pre-commit hook scripts to automatically check and fix code specification issues, you can ensure that team members are following the latest PHP code specifications before committing code, thereby improving overall code quality. This is especially important for large projects and teams, as it can reduce the workload of code reviews, improve development efficiency, and reduce the risk of potential bugs. Using this example, you can tailor your pre-commit hook script to your team's needs and specific coding conventions.

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