Installer composer dans Debian

Dans ce mini article, je vais vous montrer comment procéder à l’installation de composer que vous soyez sous Debian, Ubuntu, ArchLinux… J’espère que vous aimez la ligne de commande.

Qu’est-ce ce composer?

Composer est un logiciel gestionnaire de dépendances libre écrit en PHP. Il permet à ses utilisateurs de déclarer et d’installer les bibliothèques dont le projet principal a besoin.

Installation

Code a executer dans un terminal

    $ sudo apt-get update
    $ sudo apt-get install curl php-cli php-mbstring git unzip
    curl -sS https://getcomposer.org/installer -o composer-setup.php
    $ sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer

Verification

Nous allons vérifier que composer fonctionne. Dans votre terminal, tapez l’instruction composer et vous devriez obtenir un écran équivalent à celui là.

    ______
    / ____/___  ____ ___  ____  ____  ________  _____
    / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
    / /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
    \____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                        /_/
    Composer version 1.8.4 2019-02-11 10:52:10

    Usage:
    command [options] [arguments]

    Options:
    -h, --help                     Display this help message
    -q, --quiet                    Do not output any message
    -V, --version                  Display this application version
        --ansi                     Force ANSI output
        --no-ansi                  Disable ANSI output
    -n, --no-interaction           Do not ask any interactive question
        --profile                  Display timing and memory usage information
        --no-plugins               Whether to disable plugins.
    -d, --working-dir=WORKING-DIR  If specified, use the given directory as working directory.
    -v|vv|vvv, --verbose           Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

    Available commands:
    about                Shows the short information about Composer.
    archive              Creates an archive of this composer package.
    browse               Opens the package's repository URL or homepage in your browser.
    check-platform-reqs  Check that platform requirements are satisfied.
    clear-cache          Clears composer's internal package cache.
    clearcache           Clears composer's internal package cache.
    config               Sets config options.
    create-project       Creates new project from a package into given directory.
    depends              Shows which packages cause the given package to be installed.
    diagnose             Diagnoses the system to identify common errors.
    dump-autoload        Dumps the autoloader.
    dumpautoload         Dumps the autoloader.
    exec                 Executes a vendored binary/script.
    global               Allows running commands in the global composer dir ($COMPOSER_HOME).
    help                 Displays help for a command
    home                 Opens the package's repository URL or homepage in your browser.
    i                    Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.
    info                 Shows information about packages.
    init                 Creates a basic composer.json file in current directory.
    install              Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.
    licenses             Shows information about licenses of dependencies.
    list                 Lists commands
    outdated             Shows a list of installed packages that have updates available, including their latest version.
    prohibits            Shows which packages prevent the given package from being installed.
    remove               Removes a package from the require or require-dev.
    require              Adds required packages to your composer.json and installs them.
    run-script           Runs the scripts defined in composer.json.
    search               Searches for packages.
    self-update          Updates composer.phar to the latest version.
    selfupdate           Updates composer.phar to the latest version.
    show                 Shows information about packages.
    status               Shows a list of locally modified packages, for packages installed from source.
    suggests             Shows package suggestions.
    u                    Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
    update               Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
    upgrade              Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
    validate             Validates a composer.json and composer.lock.
    why                  Shows which packages cause the given package to be installed.
    why-not              Shows which packages prevent the given package from being installed.

Je vous invite, de temps en temps, à réaliser une mise à jour de composer afin de profiter d’un outil avec les meilleurs performances et les futures évolutions liés aux différentes versions du PSR.

    $ composer self-update
Tags: php composer debian linux astuces web administration systeme