I run a newsgroup indexer privately which has switched to Composer for managing PHP dependencies. As Composer is not in the default Ubuntu 14.04 repositories I had to install it manually. This is a really simple process, but since I had to search a while for this I wanted to spend a small post about it. You will need root (or an account that can sudo) in order to install Composer.
Instaling the requirements:
For Composer to work, some dependencies need to be installed if they are not installed already:
apt-get install php5-cli git curl
Now we need to download and put the Composer binary into place. Here we will install it directly to /usr/local/bin/:
curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin --filename=composer
Now that Composer is installed, run the program to see if it outputs it’s help file:
Running composer as root/super user is highly discouraged as packages, plugins and scripts cannot always be trusted
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Composer version 1.1.2 2016-05-31 19:48:11
command [options] [arguments]
-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
about Short information about Composer
archive Create an archive of this composer package
browse Opens the package's repository URL or homepage in your browser.
clear-cache Clears composer's internal package cache.
clearcache Clears composer's internal package cache.
config Set config options
create-project Create 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 Execute 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.
info Show 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 Show 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 Run the scripts defined in composer.json.
search Search for packages
self-update Updates composer.phar to the latest version.
selfupdate Updates composer.phar to the latest version.
show Show information about packages
status Show a list of locally modified packages
suggests Show package suggestions
update Updates 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