Description of new features in composer 2.0-composer-php.cn

Home

Development Tools

composer

Description of new features in composer 2.0

藏色散人

Dec 22, 2020 pm 04:17 PM

composer

Below, composer uses the tutorial column to introduce the new features of composer 2.0. I hope it will be helpful to friends in need!

Description of new features in composer 2.0

#1. What are the new features?

For command line (CLI) users
New platform check feature checks runtime PHP version and available extensions to ensure They match project dependencies. If a mismatch is found, it will exit with error details. It is recommended to use the production PHP process during build or deployment to run composer check-platform-reqs
If the package exists in a higher priority repository, it is now in a lower priority The package will be completely ignored in the repository. For more information, see Repository Priority.
Invalid PSR-0/PSR-4 class configurations are no longer autoloaded in optimized autoloader mode, per the warning introduced in 1.10
On linux systems that support the XDG base directory specification, Composer now prefers to use XDG_CONFIG_DIR/composer instead of ~/.composer (if both are available 1.x uses ~/.composer first)
Package names must now comply with our naming guidelines, otherwise Composer will error and terminate. (https://github.com/composer/composer/blob/2.0.0/doc/04-schema.md#name)
--no-suggest is deprecated, Since it is no longer needed
PEAR support (repositories, downloaders, etc.) has been removed
update now lists the composer first. lock file (update step) and then lists the changes that were applied when installing the lock file into the vendor directory (installation step)
HTTPS_PROXY_REQUEST_FULLURI will now default to false if not specified, As this seems to work better in most environments
dev-trunk, dev-master and dev-default are no longer aliases for each other. Keep the exact branch name for now.

2. Detailed differences in event flow during dependency resolution, composer update and installation

composer v1

composer resolves dependencies (Scheduling PRE/POST_DEPENDENCIES_SOLVING)
Then, it goes through all packages step by step (Scheduling PRE_PACKAGE_INSTALL/UPDATE/UNINSTALL , then schedule PRE_FILE_DOWNLOAD as needed, then POST_PACKAGE_*).
Finally write the lock file at the end

composer v2

The update and installation processes have been split.

Update meeting:

composer resolves dependencies (scheduling PRE_POOL_CREATE)
Then write the lock file, update is completed

Then install:

Send to PRE_OPERATIONS_EXEC to execute Full list of operations
Download all packages not already in cache in parallel (scheduling PRE_FILE_DOWNLOAD for packages not yet in cache)
Then , which iterates through all packages and performs updates/installs/uninstalls in parallel (PRE_PACKAGE_INSTALL/UPDATE/UNINSTALL is distributed first, then POST_PACKAGE_*, but the last package launched may finish installing before another one is completed).

The above is the detailed content of Description of new features in composer 2.0. For more information, please follow other related articles on the PHP Chinese website!

Statement

This article is reproduced at:oschina. If there is any infringement, please contact admin@php.cn delete

Composer and AI: New Possibilities in PHP DevelopmentApr 19, 2025 am 12:03 AM

The combination of AI and Composer can improve PHP development efficiency and security. Specifically reflected in: 1. Dependency analysis and optimization: AI can predict dependencies and reduce conflicts. 2. Automated security checks: AI can identify security vulnerabilities, and it is recommended to update them. 3. Code generation and optimization: AI can automatically generate and optimize related code.

Using Dicr/Yii2-Google to integrate Google API in YII2Apr 18, 2025 am 11:54 AM

VprocesserazrabotkiveB-enclosed, Мнепришлостольностьсясзадачейтерациигооглапидляпапакробоглесхетсigootrive. LEAVALLYSUMBALLANCEFRIABLANCEFAUMDOPTOMATIFICATION, ČtookazaLovnetakProsto, Kakaožidal.Posenesko

How to use Composer to resolve JSON Schema verification issuesApr 18, 2025 am 11:51 AM

I'm having a tricky problem when developing a Symfony-based application: how to effectively validate JSON data format. Initially, I tried using manual verification code, but this was not only complicated, but also error-prone. After some exploration, I discovered a Composer package called ptyhard/json-schema-bundle, which brought great convenience and efficiency to my project.

Use Composer to solve the dilemma of recommendation systems: andres-montanez/recommendations-bundleApr 18, 2025 am 11:48 AM

When developing an e-commerce website, I encountered a difficult problem: how to provide users with personalized product recommendations. Initially, I tried some simple recommendation algorithms, but the results were not ideal, and user satisfaction was also affected. In order to improve the accuracy and efficiency of the recommendation system, I decided to adopt a more professional solution. Finally, I installed andres-montanez/recommendations-bundle through Composer, which not only solved my problem, but also greatly improved the performance of the recommendation system. You can learn composer through the following address:

How to quickly build Fecmall advanced project templates using ComposerApr 18, 2025 am 11:45 AM

When developing an e-commerce platform, it is crucial to choose the right framework and tools. Recently, when I was trying to build a feature-rich e-commerce website, I encountered a difficult problem: how to quickly build a scalable and fully functional e-commerce platform. I tried multiple solutions and ended up choosing Fecmall's advanced project template (fecmall/fbbcbase-app-advanced). By using Composer, this process becomes very simple and efficient. Composer can be learned through the following address: Learning address

Improve Doctrine entity serialization efficiency: application of sidus/doctrine-serializer-bundleApr 18, 2025 am 11:42 AM

I had a tough problem when working on a project with a large number of Doctrine entities: Every time the entity is serialized and deserialized, the performance becomes very inefficient, resulting in a significant increase in system response time. I've tried multiple optimization methods, but it doesn't work well. Fortunately, by using sidus/doctrine-serializer-bundle, I successfully solved this problem, significantly improving the performance of the project.

Use Composer to resolve error logging issues in Laravel projectsApr 18, 2025 am 11:39 AM

When developing Laravel projects, the management of error logs is a very critical link. Recently, I encountered a problem in my project: how to efficiently capture and record all types of errors and ensure that these error messages can be processed in a timely manner. After some research, I found the lukeboy25/errorlogger package. It is installed through Composer and can greatly simplify the management process of error logs. You can learn composer through the following address:

How to use Composer to improve the security of Laravel applications: Applications of wiebenieuwenhuis/laravel-2fa libraryApr 18, 2025 am 11:36 AM

When developing a Laravel application, I encountered a common but difficult problem: how to improve the security of user accounts. With the increasing complexity of cyber attacks, a single password protection is no longer enough to ensure the security of users' data. I tried several methods, but the results were not satisfactory. Finally, I installed the wiebenieuwenhuis/laravel-2fa library through Composer and successfully added two-factor authentication (2FA) to my application, greatly improving security.

See all articles