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Using & Extending Composer
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Till Klampaeckel
November 07, 2013
Technology
6
800
Using & Extending Composer
My talk from Symfony Live 2013 in Berlin.
Till Klampaeckel
November 07, 2013
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Transcript
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Using & Extending Composer Your daily life with
Composer
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Till I’m Till Klampäckel
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Till Good to meet you.
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Find me online @klimpong http://github.com/till http://till.klampaeckel.de/
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Till 15 years of experience
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ImagineEasy Solutions LLC An information literacy company.
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Information Literacy •avoid plagiarism •evaluate sources
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EasyBib.com EasyBib is an citation management platform. 40
million students use EasyBib every year. Over 1000 institutions subscribe, including 100 large US universities and 900 high schools and districts.
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ResearchReady.com ResearchReady teaches information literacy skills in a
core curriculum. Universities and districts subscribe to give their students a research skill boost. Launched in January 2013.
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Stack •PHP (5.3 & 5.4, on the way
to 5.5) •Nginx + Linux •AWS (OpsWorks, RDS, ElasticCache) •Solr, ElasticSearch •CouchDB / BigCouch •Travis-CI, PHPUnit, Behat •Vagrant, Chef, Virtualbox, Packer
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Commercial break Some rights reserved by claire.whitehouse http://www.flickr.com/photos/citysnidget/
SOUNDS GOOD? WE’RE HIRING!
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Composer We embrace it.
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Composer Dependency management
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Composer Dependency resolution
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Composer Semantic Versioning
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Composer Major.Minor.Bugfix 1.0.1
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Composer http://semver.org/
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Composer Your first package
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Composoring your code { “name”: “till/secret-sauce”, “license”: “MIT”
}
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Next step Publish code. —
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Packagist •register on packagist.org •submit your package •setup
the service-hook (Github)
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Ship it!
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Shipping it • `git tag -a 1.0.0 -m
“this is my rock-solid 1.0.0”` `git push --tags` • `svn cp trunk tags/1.0.0`
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Consuming { “name”: “fabpot/awesome”, “require”: { “till/secret-sauce”: “~1.0”
} }
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Consuming { “name”: “fabpot/awesome”, “repositories”: [ { “type”:”package”,
“package”: { “name”: “sensio/legacy-code”, “version”: “3.2.4”, “dist”: { “url”: “http://dev.local/secret.zip”, “type”: “zip” } } } ], “require”: { “sensio/legacy-code”: “3.2.4”, “till/secret-sauce”: “~1.0” } }
ACHTUNG, ACHTUNG.
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Repositories • Repositories are not inherited. • Put
open source code on packagist, or get satis.
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Consuming • There are a lot, lot more
options. • Check http://getcomposer.org/
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Installing cd awesome-application curl -sS http://getcomposer.org/installer |php ./composer.phar
install
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What else? • Update your dependencies. • Search
for dependencies. • Development dependencies. • Classmap and PSR-0 autoloaders. • “help”
Breath.
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One more thing Do you know composer’s global
command?
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Go PEAR! Go global! •$COMPOSER_HOME/composer.json •./composer.phar global install
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Satis Your own private packagist.org.
Because what could go wrong?
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Things that will go wrong • Github is
down. • Packagist is down. • Internet is slow. • Internet doesn’t work. • Tags get deleted. (cc fabpot :)
Own your availability!
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Captain Obvious Your proprietary code is private.
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Setup ./composer.phar \ create-project \ composer/satis \ --stability=dev
\ --prefer-dist
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satis.json { "name": "Till's satis", "homepage": "http://satis.local", "require-all":
true, "repositories": [ {"packagist": false}, { "type":"vcs", "url":"http://github.com/fabpot/symfony" } ] }
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Build ./bin/satis build ./satis.json public php -S 0.0.0.0:80
-t public
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Build
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Go back { “name”: “fabpot/awesome”, “repositories”: [ {
“type”:”composer”, “url”: “http://satis.local” } ], “require”: { “sensio/legacy-code”: “3.2.4”, “till/secret-sauce”: “~1.0” } }
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Next steps • fork code — e.g. to
a local backup server • generate your own downloads • configure Amazon S3 as a backend
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Next steps http://www.flickr.com/photos/mightymightymatze/
Want even more?
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Extending Composer Or, bending Composer to your will.
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Plugins
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Composer installer
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Composer installer Install jQuery, bootstrap, etc.! https://github.com/RobLoach/component-installer
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Composer installer • aura • ezPublish • flow/typo3
• fuel • magento • wordpress • yii
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Event-Plugins
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Plugin Events COMMAND https://github.com/easybiblabs/composer-newrelic
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Plugin Events PRE_FILE_DOWNLOAD https://github.com/naderman/composer-aws
We’re almost done!
Lessons learned.
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Deploying with Composer is hard
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Github is down more often than you think
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Github is not down as often as you
think :)
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API limits suck
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Composer wants your RAM
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~/.composer/config.json
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Always “composer validate”
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Always check in the “composer.phar”
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Versioning is hard
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Dependency resolution
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“composer update” broke my app
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#1 contender for merge conflicts: The composer.lock
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Thanks! Questions?