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Managing your project PHP dependencies
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Théo FIDRY
October 20, 2016
Research
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Managing your project PHP dependencies
Théo FIDRY
October 20, 2016
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Transcript
MANAGING YOUR PROJECT DEPENDENCIES GitHub: @theofidry Twitter: @tfidry 1
“There is no solution, only tradeoffs” Managing your project dependencies
- Paul M. Jones 2
Scope Managing your project dependencies • Case of study: PHP
framework agnostic library • POV: maintainer of the library • Modern PHP version (Composer) 3
What are your project dependencies? Managing your project dependencies 4
Types of dependencies Managing your project dependencies • Hard dependencies
• Optional dependencies • Dev dependencies 5
How to manage those dependencies? Managing your project dependencies 6
Managing your project dependencies Image source: https://getcomposer.org/img/logo-composer-transparent5.png
Hard dependencies Managing your project dependencies 8
Optional dependencies Managing your project dependencies 9
Optional & Dev dependencies Managing your project dependencies 10
Cool? Managing your project dependencies 11
Managing your project dependencies Image source: https://www.allmystery.de/i/tcce1a2_35567217.jpg
require-dev limitations Managing your project dependencies 13
You are changing your dependencies Managing your project dependencies 14
Managing your project dependencies symfony/yaml <3.0 15
Harder to detect issues or incompatibilities Managing your project dependencies
16
“Stupid” conflicts Managing your project dependencies static analysis tool 17
Annoying conflicts Managing your project dependencies never used together 18
Solutions? Managing your project dependencies 19
Managing your project dependencies Example #1 20
KISS: don’t use those dependencies Managing your project dependencies 21
Recap: Managing your project dependencies • pros: dead simple •
cons: you can’t use this dependency 22
Image source: http://i2.mirror.co.uk/incoming/article5940823.ece/ALTERNATES/s1227b/Luhu-the-saddest-tabby-cat.jpg
PHARs Managing your project dependencies 24
Managing your project dependencies What is a PHAR? “The phar
extension provides a way to put entire PHP applications into a single file called a "phar" (PHP Archive) “ Quote source: http://php.net/manual/en/intro.phar.php 25
26
Managing your project dependencies Image source: http://fatcdn.hipobw1hofq5ehpwigfo4.netdna-cdn.com/wp-content/uploads/2015/07/dangercat5-768x1024.jpg WARNING
The code of a PHAR is not isolated Managing your
project dependencies 28
Managing your project dependencies symfony/yaml 2.7.0 symfony/yaml 3.1.0 29
[1]: https://pixabay.com/en/atomic-bomb-mushroom-cloud-explosion-1011738/
Possible outcomes Managing your project dependencies • Everything runs fine
(lucky) • Big fat error (a bit less luck) • Very subtle nasty bug you’ll have hard time to solve (wish you luck man) 31
When can you use a PHAR? Managing your project dependencies
32
When it doesn’t execute your code Managing your project dependencies
33
Recap: Managing your project dependencies • pros: solve the conflict
problem • cons: • Inappropriate when PHARs must execute code • PHARs are not trackable 34
Managing your project dependencies Track your PHARs with tommy-muehle/tooly-composer-script 35
Managing your project dependencies 36
Managing your project dependencies Example #2 37
Use multiple repositories Managing your project dependencies 38
Managing your project dependencies • Core library : acme/lib •
Symfony bridge : acme/lib-bundle • Laravel bridge: acme/lib-laravel-provider 39
Recap: Managing your project dependencies • pros: simple • cons:
you have to manage and synchronize multiple repositories 40
Tweak testing configuration Managing your project dependencies 41
Symfony bridge tests Laravel bridge tests Core library tests 42
Recap: Managing your project dependencies • pros: it works •
cons: • can be very tricky • slow 43
Another solution? Managing your project dependencies 44
Multiple composer.json files Managing your project dependencies 45
Managing your project dependencies Example #2 46
Core library Symfony bridge Laravel bridge 47
How to easily manage them? Managing your project dependencies 48
Managing your project dependencies • bamarni/composer-bin-plugin • theofidry/composer-inheritance-plugin • wikimedia/composer-merge-plugin
49
Managing your project dependencies 50
Managing your project dependencies 51
bamarni symfony/yaml 52
Managing your project dependencies Example #2 53
Core library Laravel bridge Symfony bridge 54
55
Demo https://github.com/theofidry/sfpot-lille-managing-your-dependencies-demo Managing your project dependencies
My takeaway Managing your project dependencies
Questions? Managing your project dependencies
Thanks! Managing your project dependencies GitHub: @theofidry Twitter: @tfidry