Package Managers

Package – A package can be a GitHub shorthand, a Git endpoint, a URL, and more. Eg: bootstrap

Package Manager – Package manager is collection of software  tools that automates the process of installing, configuring, upgrading and removing any programs

1. npm – node package manager
   • npm is the default package manager for the JavaScript runtime environment Node.js.
   • Installing nodejs & npm:
     • https://www.npmjs.com/get-npm?utm_source=house&utm_medium=homepage&utm_campaign=free%20orgs&utm_term=Install%20npm
   • To check node and npm successful installation
     • Go to command line and enter
       • npm -v
       • node -v
       • you should see the version numbers
   • Installing package:
     • npm install <package>
     • npm install <package>  –save
     • npm install <package> –save-dev
     • with version number
       • npm install <package>@version
2. bower – package manager for web
   • bower is a command line utility
   • has to be installed with npm
   • Installing bower: (-g installs it globally)
     • npm install -g bower
   • bower requires node, npm and git
   • bower init to initialize bower.json file
   • Installing packages with bower
     • bower install <package>
     • bower install <package> -S (for saving in bower.json)
     • bower install <package> -D (for saving in bower.json as devdependency)
   • Issues git not found event after having git client tool
     • solution:
       • locate your git.exe file
       • It’s usually located here – C:\Users\user\AppData\Local\GitHub\PortableGit_dGUID\cmd
       • GUID changes when the git gets updated
       • copy the path and paste it in command line
       • enter ‘git’ command, if you see git help options that means git is working
       • now copy the path, remove ‘.git.exe’ at the end and paste into PATH variable
       • close and reopen the command line and try entering git command again. If everything goes right, git works!
     • package.json file gets created with all dependencies. If not just enter, ‘npm init’ command
3. composer – A dependency manager for php
   • Installing composer
     • https://getcomposer.org/download/
     • The installer will download composer for you and set up your PATH environment variable so you can simply call composer from any directory.
   • Installing packages with composer:
     • composer require twbs/bootstrap
   • For php
     • Eg:
       • composer require phpmd/phpmd
       • composer require –dev phpunit/phpunit
         • Using phpunit from commandline
           • .\vendor\bin\phpunit testFile.php
           • Same pattern of execution for other modules installed with composer
   • composer.json file gets created with all dependencies