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Composer the Right Way - MM16NL

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Composer has triggered a renaissance in the PHP community, it has changed the way we deal with other people’s code and it has changed the way we share our code. We are all slowly moving to using Composer, from Wordpress to Joomla and Drupal and frameworks in between. But many of us mistreat composer, follow outdated practices or simply lack a few tricks. In this session i’ll get you the low down on how to use composer the right way.

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Composer the Right Way - MM16NL

  1. 1. Composer the right way @rdohms Rafael Dohms
  2. 2. photo: smileymanwithahat
  3. 3. photo: Rob Allen
  4. 4. Library Publisher Library Library Consumer Packagist photo: 18millionpixels
  5. 5. { "require": { "monolog/monolog": “2.0” } } { "name": “monolog/monolog” ... } ./composer.json has been updated Loading composer repositories with package information Updating dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages. Problem 1 - The requested package monolog/monolog could not be found in any version, there may be a typo in the package name. Potential causes: - A typo in the package name - The package is not available in a stable-enough version according to your minimum-stability setting see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details. Read <http://getcomposer.org/doc/articles/troubleshooting.md> for further common problems. Installation failed, reverting ./composer.json to its original content. ./composer.json has been updated Loading composer repositories with package information Updating dependencies (including require-dev) - Installing psr/log (1.0.0) Loading from cache - Installing monolog/monolog (1.11.0) Downloading: 100% monolog/monolog suggests installing graylog2/gelf-php (Allow sending log messages to a GrayLog2 server) [...] monolog/monolog suggests installing ext-mongo (Allow sending log messages to a MongoDB server) monolog/monolog suggests installing aws/aws-sdk-php (Allow sending log messages to AWS services like DynamoDB) monolog/monolog suggests installing rollbar/rollbar (Allow sending log messages to Rollbar) Writing lock file Generating autoload files ___
 ~1.1 photo: 18millionpixels
  6. 6. discovery source installation Packagist ! Vendor
 Folder " Repository # composercomposer.json$ composer.lock$
  7. 7. 2 054 229 509two billion, fifty-four million, two hundred and twenty-nine thousand, five hundred and nine. +
  8. 8. Stable!Go tell @seldaek, @naderman and the entire composer team, thank you for all the amazing work!
  9. 9. $ composer self-update Production $ composer self-update --snapshot Development $ composer self-update --preview CI / Build
  10. 10. $ composer init Library Publisher $ composer require <vendor>/<package> Library Consumer
  11. 11. $ composer require monolog/monolog Tip Using version ^1.11 for monolog/monolog
  12. 12. $ composer require monolog/monolog --sort-packages Tip
  13. 13. $ composer remove monolog/monolog Tip removes packages and dependencies by default 
 — beta 2
  14. 14. Library Publishers Composer for
  15. 15. Library Publisher Unique vendor names vendor / package
  16. 16. Library Publisher Unique vendor names pick your own 
 unique vendor
  17. 17. Library Publisher Unique vendor names or join a collective
  18. 18. README$ CHANGELOG% LICENSE& Library Publisher What’s in your library? ' List relevant changes ' Make BC breaks prominent ' Show examples of how to upgrade ' Pick one that reflects your values ' choosealicense.com can help ' What problem does it solve? ' Usage examples ' Install instructions ' How can I contribute?
  19. 19. Library Publisher Semantic Versioning 1 . 2 3.major minor patch API / BC Breaks New Features Bug Fixes
  20. 20. Library Publisher Tagging Please, tag your releases. often!
  21. 21. Library Publisher “I'm out" photo: nickwebb
  22. 22. Library Publisher “I'm out" Click here and provide an alternative
  23. 23. Library Publisher “I'm out"
  24. 24. Pick the 
 correct 
 version Library Publisher Pick a Version
  25. 25. *the asterisk○Library Publisher Pick a Version
  26. 26. ~the tilde Library Publisher Pick a Version
  27. 27. ~1.2 >=1.2.0, <2.0.0 Library Publisher Pick a Version )
  28. 28. ~1.2.3 >=1.2.3, <1.3 Library Publisher Pick a Version )
  29. 29. Yo @rdohms, I’m really happy for you and I’m gonna let you finish, but the tilde operator is totally old news.
  30. 30. ^the caret Library Publisher Pick a Version
  31. 31. 1.2.3 >=1.2.3, <2.0.0 Library Publisher Pick a Version ) ^ )
  32. 32. 0.3.0 >=0.3.0, <0.4.0 Library Publisher Pick a Version ^ ) Major Version Zero
  33. 33. "require": { "zendframework/zend-stdlib": “2.1.*”, "zendframework/zend-servicemanager": "2.1.*", }, “require-dev": { “phpunit/phpunit": “~3.7” } Library Publisher Pick a Version "require": { "zendframework/zend-stdlib": “^2.3”, "zendframework/zend-servicemanager": “^2.3", }, “require-dev": { “phpunit/phpunit": “~4” } 3rd party library Your application * ^2.1
  34. 34. Library Consumers Composer for
  35. 35. Library Consumer Install or update? install or update?
  36. 36. Library Consumer Install or update? Make sure you have installed the last updates from other developers. ? install updateor
  37. 37. Library Consumer Install or update? Make sure you have installed the last updates from other developers. ? install updateor
  38. 38. Library Consumer Install or update? Deploying a new release of your application to production. ? install updateor
  39. 39. Library Consumer Install or update? Deploying a new release of your application to production. ? install updateor
  40. 40. Library Consumer Install or update? Checked out a new project and want to start coding. ? install updateor
  41. 41. Library Consumer Install or update? Checked out a new project and want to start coding. ? install updateor
  42. 42. Library Consumer Install or update? Grab new versions for the dependencies of your project. ? install updateor
  43. 43. Library Consumer Install or update? Grab new versions for the dependencies of your project. ? install updateor
  44. 44. Your application " Public Repository # Library Consumer Install or update? composer.lock$ read grab version check latest compatible release update composer install composer update no lock file? composer update since beta2
  45. 45. Library Consumer Install or update? commit your lock file
  46. 46. $ composer update —interactive (-i) Tip since beta1
  47. 47. $ composer why-not <package> doctrine/doctrine-bundle 1.6.2 requires symfony/framework-bundle (~2.3|~3.0) doctrine/doctrine-cache-bundle 1.3.0 requires symfony/doctrine-bridge (~2.2|~3.0) doctrine/doctrine-fixtures-bundle 2.3.0 requires symfony/doctrine-bridge (~2.3|~3.0) doctrine/doctrine-migrations-bundle dev-master requires symfony/framework-bundle (~2.3|~3.0) doctrine/migrations dev-master requires symfony/yaml (~2.3|~3.0) doctrine/orm v2.5.4 requires symfony/console (~2.5|~3.0) friendsofsymfony/rest-bundle 1.7.7 requires symfony/http-kernel (^2.3.24|~3.0) incenteev/composer-parameter-handler v2.1.2 requires symfony/yaml (~2.3|~3.0) jms/serializer-bundle 1.1.0 requires symfony/framework-bundle (~2.3|~3.0) knplabs/knp-paginator-bundle 2.5.1 requires symfony/framework-bundle (~2.3|~3.0) kriswallsmith/assetic v1.3.2 requires symfony/process (~2.1|~3.0) Tip since beta1
  48. 48. $ composer outdated composer/composer 1.0.3 1.1.0 filp/whoops 2.1.0 2.1.2 justinrainbow/json-schema 1.6.1 2.0.3 nikic/fast-route v0.7.0 v1.0.0 oscarotero/psr7-middlewares v3.14.3 v3.15.1 Tip
  49. 49. Pick the 
 correct 
 version Library Consumer Version Selection
  50. 50. Library Consumer Version Selection dev-master
  51. 51. Library Consumer Version Selection
  52. 52. Library Consumer Using forks found a bug?
  53. 53. Library Consumer Using forks $ composer install --prefer-source Tip
  54. 54. Library Consumer Using forks patch it, fork it, push it… wait for it.
  55. 55. Library Consumer Using forks symfony/symfony rdohms/symfony "repositories": [ { "type": "vcs", "url": "https://github.com/rdohms/symfony" } ] +
  56. 56. Library Consumer Using forks Do not put forked repositories
 on packagist ,
  57. 57. Library Consumer Using forks "require": { "symfony/symfony": "dev-my-patch as 2.5.0" } Tip
  58. 58. Library Consumer Composer and deployments Composer and production
  59. 59. Library Consumer Composer and deployments $ composer install --prefer-dist --no-dev --optimize-autoloader , - Install same versions - Uses information defined in the composer.lock file
  60. 60. $ composer install --prefer-dist --no-dev --optimize-autoloader Library Consumer Composer and deployments , - Downloads distribution packages - Can use local cache for previously downloaded - No git required
  61. 61. $ composer install --prefer-dist --no-dev --optimize-autoloader Library Consumer Composer and deployments , - Avoids download unnecessary developer libraries
  62. 62. $ composer install --prefer-dist --no-dev --optimize-autoloader Library Consumer Composer and deployments , - Generates classmap from PSR-0/4 autoloaders - Speeds up autoloading
  63. 63. Library Consumer Licensing $ composer licenses Name: __root__ Version: 1.0.0 Licenses: none Dependencies: doctrine/annotations v1.2.1 MIT doctrine/cache v1.3.1 MIT doctrine/collections v1.2 MIT doctrine/common v2.4.2 MIT doctrine/inflector v1.0 MIT doctrine/lexer v1.0 MIT psr/log 1.0.0 MIT symfony/symfony v2.5.6 MIT twig/twig v1.16.2 BSD-3-Clause Tip
  64. 64. Library Consumer Simulating Environments "config": { "platform": { "php": “5.6.2”, “ext-mongodb”: “1.1” } }, Tip Production Server . Development Server .PHP 7.0 PHP 5.6
  65. 65. Library Consumer Simulating Environments $ composer install —-ignore-platform-reqs Tip
  66. 66. Library Consumer Private Packages and Proxy Satis and Toran
  67. 67. composer Packagist ! Your application " Public Repository # Library Consumer Private Packages and Proxy
  68. 68. composer Packagist ! Your application " Public Repository # Satis / Toran ! Private Repository / proxy Library Consumer Private Packages and Proxy
  69. 69. Library Consumer Private Packages and Proxy toranproxy.com private repos, automatic packagist proxy and support composer development
  70. 70. Library Consumer One last thing One last thing…
  71. 71. Library Consumer pickle!
  72. 72. Library Consumer pickle! $ pickle install memcache https://wiki.php.net/rfc/pickle https://github.com/FriendsOfPHP/pickle
  73. 73. Thank you.any questions? 0 http://slides.doh.ms 1 http://doh.ms 2 @rdohms

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