Install Composer di Ubuntu 20.04

Artikel ini akan menejelaskan tentang bagaimana Cara Install Composer di Ubuntu server 20.04 , sebelumnya perlu kita ketahui apa itu composer?
Composer merupakan perangkat dependency manager untuk PHP. Seorang developer dapat mendeklarasikan library yang dibutuhkan dalam proyek aplikasi PHP yang kemudian akan diinstalasi dan diperbarui oleh Composer tanpa harus diunduh satu per satu.

Persyaratan :

Pastikan anda login ke server dan menggunakan hak akses super user atau root.

Step by Step Cara Install Composer di Ubuntu 20.04

Step 1 – Instal Denpedency

Update paket pada server anda dan menginstal dependensi yang diperlukan, termasuk php-cli :

# apt-get update
# apt install wget php-cli php-zip unzip

Step 2 – Download and Install Composer

Pastikan Anda berada di direktori beranda, lalu ambil penginstal Komposer menggunakan curl:

# cd ~
# php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"

Selanutnya verifikasi composer public key :

# HASH=`curl -sS https://composer.github.io/installer.sig`

Sekarang jalankan kode PHP berikut untuk memverifikasi bahwa skrip instalasi aman untuk dijalankan:

# php -r "if (hash_file('SHA384', 'composer-setup.php') === '$HASH') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"

Akan ada output seperti ini :

Installer verified

NB : Jika Installer Corrupt , maka ada yang kurang atau lakukan kembali perintah diatas.

Install Composer yang nanti letak filenya ada di /usr/local/bin:

# php composer-setup.php --install-dir=/usr/local/bin --filename=composer

Output yang akan ditampilkan :

All settings correct for using Composer
Downloading...

Composer (version 2.0.11) successfully installed to: /usr/local/bin/composer
Use it: php /usr/local/bin/composer

Test composer yang sudah kalian install:

# composer
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Continue as root/super user [yes]?
   ______
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                    /_/
Composer version 2.0.11 2021-02-24 14:57:23

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.
      --no-cache                 Prevent use of the cache
  -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.
  cc                   Clears composer's internal package cache.
  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.
  fund                 Discover how to help fund the maintenance of your dependencies.
  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                  Runs the scripts defined in composer.json.
  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.
  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.

Composer sudah berhasil diinstall selamat mencoba.