This document discusses the slow speeds experienced when using Composer to install PHP dependencies from Japan due to latency to packagist.org. It proposes a solution of creating a Composer proxy in Japan called "composer-proxy.jp" to cache package information and speed up install times. Testing showed install times were 3x faster when using the proxy compared to direct access. Future work is discussed to add more caching and capabilities to the proxy.

1. Composer Proxy JP
kawahara@bucyou.net
c09
@ooharabucyou
PHPMATSURI 2013
in Sapporo, 2013-07-15

2. Dependency Manager for PHP
npm

3. Central Repository
Awsome

4. Problem
● meh... Slow... Slow... Slow...
● There are 300 - 500ms latencies to
packagist.org from Japan.

5. [kawahara@udon ~ master] $ composer update --
dev
Updating dependencies (including require-dev)
10:00 a.m.

6. [kawahara@udon ~ master] $ composer update --
dev
Updating dependencies (including require-dev)
10:02 a.m.

7. [kawahara@udon ~ master] $ composer update --
dev
Updating dependencies (including require-dev)
10:03 a.m.

8. [kawahara@udon ~ master] $ composer update --
dev
Updating dependencies (including require-dev)
......
Your requirements could not be resolved to an
installable set of packages.
10:05 a.m.

9. Mecanisum of Composer
1. Gets /packagis.json from repository
○ Ok. It's very fast. Only 1KB.
2. Gets providers information from repository
○ Gets 4 files.
3. Gets package information
○ In case of Symfony Standard
○ 72 files, 7.7MB
○ (If there is file cache in local,
composer fetch data from here.)
4. Resolve Dependencies
5. Gets Package (Archive or Source)

10. Some ways to resolve it
● Use private repository
○ satis (composer/satis を活用してComposer パッ
ケージの配布を行う http://www.bucyou.net/blog/952)
○ Broker (https://github.com/researchgate/broker)
● Satis is good solution, but we need install
required package in advance.
● Make mirror in Japan.

11. My Answer
● Better Proxy in Japan

12. Application
● Name: composer-proxy
● Very Very simple Silex application.
● Features
○ proxy and cache.
● composer-proxy.jp in Sakura-Cloud.

13. How to use?
● Edit your composer global configuration.
(default $HOME/.composer/config.json)
{
"repositories": [
{ "packagist": false },
{
"type": "composer",
"url": "http://composer-proxy.jp/proxy/packagist"
}
]
}

14. Speed
● resolve dependencies of symfony/console
● direct to packagist.org
○ 120.24 secouns
● composer-proxy.jp (cached)
○ 41.35 seconds
● 3x faster!!!
● Need more cache information in Japan!!
Please use!!

15. In furture
● Support notice (for download count) by
asyncronous message queue.
● Support search
● Distribution archive cache
● Add own packages

16. OMAKE
● vagrant-packagist (https://github.
com/kawahara/vagrant-packagist)
○ You can setup own packagist!
○ 本当は packagist 改造しようと思ったけど、やめた残
骸。PHPer には不慣れな、solr の <del>設定もやってく
れるぞ!! </del>インストールもやってくれるぞ。

17. About Me
● c09
● Access! http://composer-proxy.jp/
● Ooharabucyou (Shogo Kawahara)
● Web API Developer, Rakuten, Inc. (http:
//webservice.rakuten.co.jp
● #groovy #java #php #edogawa-ku #openpne