更新日: 2015年10月3日
PHP & CakePHP

ComposerをMacにインストール(Homebrew/curl)

Composer は PHP ライブラリのパッケージ管理ツールです。Ruby でいうところの Bundler のようなツール。Mac に Composer を入れたのでそのインストール手順メモです。Homebrew を使う方法と curl コマンドを使う方法の2つを紹介します。

— 環境 —
Mac OS X Yosemite
Composer 1.0.0-alpha10

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Homebrew で Composer をインストール

Homebrew で composer を探す。


$ brew search composer
homebrew/php/composer

$ brew search composer

homebrew/php/composer

homebrew/php のリポジトリを tap（追加）しておきます。追加済みなら不要。


$ brew tap homebrew/php

$ brew tap homebrew/php

Homebrew に追加済みのリポジトリの一覧を確認。homebrew/php が追加されていることをチェック。


$ brew tap
...
homebrew/php
...

$ brew tap

...

homebrew/php

...

Composer を Homebrew でインストールします。


$ brew install composer
...
Error: Cannot install homebrew/php/php56 because conflicting formulae are installed.

  php53: because different php versions install the same binaries.

Please `brew unlink php53` before continuing.

$ brew install composer

...

Error: Cannot install homebrew/php/php56 because conflicting formulae are installed.

php53: because different php versions install the same binaries.

Please `brew unlink php53` before continuing.

エラーが発生した。Homebrew で入れてた既存の PHP53 が邪魔なので一旦 unlink しろとありますので、指示に従います。


$ brew unlink php53

$ brew unlink php53

composer インストールやり直し。


$ brew install composer

$ brew install composer

今度はインストール成功しました。確認。


$ which composer
/usr/local/bin/composer
$ composer --version
Composer version 1.0.0-alpha10 2015-04-14 21:18:51
$ composer
   ______
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                    /_/
Composer version 1.0.0-alpha10 2015-04-14 21:18:51
Usage:
...
Options:
...
Available commands:
...

$ which composer

/usr/local/bin/composer

$ composer --version

Composer version 1.0.0-alpha10 2015-04-14 21:18:51

$ composer

______

/ ____/___ ____ ___ ____ ____ ________ _____

/ / / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/

/ /___/ /_/ / / / / / / /_/ / /_/ (__ ) __/ /

\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/

/_/

Composer version 1.0.0-alpha10 2015-04-14 21:18:51

Usage:

...

Options:

...

Available commands:

...

最後に必要であれば unlink した php のリンクを元に戻す。


$ brew link php53

$ brew link php53

私の場合は、現在は php のバージョン管理に phpenv を使っており、この Homebrew でインストールしていた php53 は使っていないので link し直しませんでした。

Composer を curl コマンドでインストール

以下のように curl コマンドを使って手動で composer をインストールすることもできるそうです。


$ cd /var/tmp
$ curl -sS https://getcomposer.org/installer | php
$ mv composer.phar /usr/local/bin/composer

$ cd /var/tmp

$ curl -sS https://getcomposer.org/installer | php

$ mv composer.phar /usr/local/bin/composer

詳細はエントリー末尾のリンク等を参考。私の場合は、後々のアップデートのためにも、パッケージ管理システム（Homebrew）経由で Composer を導入したかったので、この手動の方法は使わずに Homebrew 経由で Composer をインストールしました。

$ brew install composer 時の注意メーッセージ

最後にちょっとメモ。$ brew install composer した時に以下のような注意メッセージが表示されました。libphp5.so、php.ini、PATH（環境変数）、php-fpm などについての注意書きです。


$ brew install composer
...

To enable PHP in Apache add the following to httpd.conf and restart Apache:
    LoadModule php5_module    /usr/local/opt/php56/libexec/apache2/libphp5.so

The php.ini file can be found in:
    /usr/local/etc/php/5.6/php.ini

------------ Extensions ------------

If you are having issues with custom extension compiling, ensure that
you are using the brew version, by placing /usr/local/bin before /usr/sbin in your PATH:

      PATH="/usr/local/bin:$PATH"

PHP56 Extensions will always be compiled against this PHP. Please install them
using --without-homebrew-php to enable compiling against system PHP.

------------ PHP CLI ------------

If you wish to swap the PHP you use on the command line, you should add the following to ~/.bashrc,
~/.zshrc, ~/.profile or your shell's equivalent configuration file:

      export PATH="$(brew --prefix homebrew/php/php56)/bin:$PATH"

------------ FPM ------------

To launch php-fpm on startup:
    mkdir -p ~/Library/LaunchAgents
    cp /usr/local/opt/php56/homebrew.mxcl.php56.plist ~/Library/LaunchAgents/
    launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.php56.plist

The control script is located at /usr/local/opt/php56/sbin/php56-fpm

OS X 10.8 and newer come with php-fpm pre-installed, to ensure you are using the brew version you need to make sure /usr/local/sbin is before /usr/sbin in your PATH:

  PATH="/usr/local/sbin:$PATH"

You may also need to edit the plist to use the correct "UserName".

Please note that the plist was called 'homebrew-php.josegonzalez.php56.plist' in old versions
of this formula.

To have launchd start homebrew/php/php56 at login:
  ln -sfv /usr/local/opt/php56/*.plist ~/Library/LaunchAgents
Then to load homebrew/php/php56 now:
  launchctl load ~/Library/LaunchAgents/homebrew.mxcl.php56.plist

$ brew install composer

...

To enable PHP in Apache add the following to httpd.conf and restart Apache:

LoadModule php5_module /usr/local/opt/php56/libexec/apache2/libphp5.so

The php.ini file can be found in:

/usr/local/etc/php/5.6/php.ini

------------ Extensions ------------

If you are having issues with custom extension compiling, ensure that

you are using the brew version, by placing /usr/local/bin before /usr/sbin in your PATH:

PATH="/usr/local/bin:$PATH"

PHP56 Extensions will always be compiled against this PHP. Please install them

using --without-homebrew-php to enable compiling against system PHP.

------------ PHP CLI ------------

If you wish to swap the PHP you use on the command line, you should add the following to ~/.bashrc,

~/.zshrc, ~/.profile or your shell's equivalent configuration file:

export PATH="$(brew --prefix homebrew/php/php56)/bin:$PATH"

------------ FPM ------------

To launch php-fpm on startup:

mkdir -p ~/Library/LaunchAgents

cp /usr/local/opt/php56/homebrew.mxcl.php56.plist ~/Library/LaunchAgents/

launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.php56.plist

The control script is located at /usr/local/opt/php56/sbin/php56-fpm

OS X 10.8 and newer come with php-fpm pre-installed, to ensure you are using the brew version you need to make sure /usr/local/sbin is before /usr/sbin in your PATH:

PATH="/usr/local/sbin:$PATH"

You may also need to edit the plist to use the correct "UserName".

Please note that the plist was called 'homebrew-php.josegonzalez.php56.plist' in old versions

of this formula.

To have launchd start homebrew/php/php56 at login:

ln -sfv /usr/local/opt/php56/*.plist ~/Library/LaunchAgents

Then to load homebrew/php/php56 now:

launchctl load ~/Library/LaunchAgents/homebrew.mxcl.php56.plist

以上で Mac への Composer インストール作業は終了。