Install Composer on RHEL 8(A Dependency Manager for PHP)

老眼SEにphpプログラミングは無理なので今まで知りませんでした(^^;
php関連サイトにcomposerでインストール的なことが書かれていることはあったのですが。

A Dependency Manager for PHP
https://getcomposer.org/

Download Composer
https://getcomposer.org/download/

簡単にできそうなのでインストールしてみました。
環境
・Red Hat Enterprise Linux release 8.2 (Ootpa)
・Kernel 4.18.0-193.14.3.el8_2.x86_64
・Red Hat Developer Subscription
・PHP 7.3

1. Download the installer to the current directory

上記サイトの手順通りです。

Shell

[root@rhel8 ~]# php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" [root@rhel8 ~]# ls -l composer-setup.php -rw-r--r--. 1 root root 277509 Aug 8 11:44 composer-setup.php

1 2 3 4

[root@rhel8 ~]# php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"   [root@rhel8 ~]# ls -l composer-setup.php -rw-r--r--. 1 root root 277509 Aug  8 11:44 composer-setup.php

2. Verify the installer SHA-384

composer-setup.phpが改竄されていないかChecksumsを確認します。
Checksumsは下記サイトにありますので、都度確認して下さい。
Composer Public Keys / Checksums
https://composer.github.io/pubkeys.html

Shell

[root@rhel8 ~]# php -r "if (hash_file('sha384', 'composer-setup.php') === 'e5325b19b381bfd88ce90a5ddb7823406b2a38cff6bb704b0acc289a09c8128d4a8ce2bbafcd1fcbdc38666422fe2806') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" Installer verified

1 2

[root@rhel8 ~]# php -r "if (hash_file('sha384', 'composer-setup.php') === 'e5325b19b381bfd88ce90a5ddb7823406b2a38cff6bb704b0acc289a09c8128d4a8ce2bbafcd1fcbdc38666422fe2806') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" Installer verified

“Installer verified”と表示されれば大丈夫です。

3. Run the installer

composer.pharが作成されました。

Shell

[root@rhel8 ~]# php composer-setup.php All settings correct for using Composer Downloading... Composer (version 1.10.10) successfully installed to: /root/composer.phar Use it: php composer.phar [root@rhel8 ~]# ls -l composer* -rw-r--r--. 1 root root 277509 Aug 8 11:44 composer-setup.php -rwxr-xr-x. 1 root root 1994167 Aug 8 11:44 composer.phar

1 2 3 4 5 6 7 8 9 10

[root@rhel8 ~]# php composer-setup.php All settings correct for using Composer Downloading...   Composer (version 1.10.10) successfully installed to: /root/composer.phar Use it: php composer.phar   [root@rhel8 ~]# ls -l composer* -rw-r--r--. 1 root root  277509 Aug  8 11:44 composer-setup.php -rwxr-xr-x. 1 root root 1994167 Aug  8 11:44 composer.phar

4. Remove the installer

composer-setup.phpを削除します。

Shell

[root@rhel8 ~]# php -r "unlink('composer-setup.php');" [root@rhel8 ~]# ls -l composer* -rwxr-xr-x. 1 root root 1994167 Aug 8 11:44 composer.phar

1 2 3

[root@rhel8 ~]# php -r "unlink('composer-setup.php');" [root@rhel8 ~]# ls -l composer* -rwxr-xr-x. 1 root root 1994167 Aug  8 11:44 composer.phar

5. 確認

rootで実行するなって警告がでました。

Shell

[root@rhel8 ~]# ./composer.phar -v Do not run Composer as root/super user! See https://getcomposer.org/root for details ______ / ____/___ ____ ___ ____ ____ ________ _____ / / / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/ / /___/ /_/ / / / / / / /_/ / /_/ (__ ) __/ / \____/\____/_/ /_/ /_/ .___/\____/____/\___/_/ /_/ Composer version 1.10.10 2020-08-03 11:35:19 Usage: command [options] [arguments] (snip)

1 2 3 4 5 6 7 8 9 10 11 12 13

[root@rhel8 ~]# ./composer.phar -v Do not run Composer as root/super user! See https://getcomposer.org/root for details    ______   / ____/___  ____ ___  ____  ____  ________  _____ / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/ / /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ / \____/\____/_/ /_/ /_/ .___/\____/____/\___/_/                     /_/ Composer version 1.10.10 2020-08-03 11:35:19   Usage:   command [options] [arguments] (snip)

6. システムで利用

システムで利用できるようにPATHの通ったディレクトリにコピーします。
composer.pharからcomposerに変更していることに注意して下さい。

Shell

[root@rhel8 ~]# mv composer.phar /usr/local/bin/composer

1	[root@rhel8 ~]# mv composer.phar /usr/local/bin/composer

Shell

[root@rhel8 ~]# composer -V Do not run Composer as root/super user! See https://getcomposer.org/root for details Composer version 1.10.10 2020-08-03 11:35:19 [root@rhel8 ~]# composer -h Do not run Composer as root/super user! See https://getcomposer.org/root for details Usage: help [options] [--] [<command_name>] Arguments: command The command to execute command_name The command name [default: "help"] Options: --xml To output help as XML --format=FORMAT The output format (txt, xml, json, or md) [default: "txt"] --raw To output raw command help -h, --help Display this help message -q, --quiet Do not output any message -V, --version Display this application version --ansi Force ANSI output --no-ansi Disable ANSI output -n, --no-interaction Do not ask any interactive question --profile Display timing and memory usage information --no-plugins Whether to disable plugins. -d, --working-dir=WORKING-DIR If specified, use the given directory as working directory. --no-cache Prevent use of the cache -v|vv|vvv, --verbose Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug Help: The help command displays help for a given command: php /usr/local/bin/composer help list You can also output the help in other formats by using the --format option: php /usr/local/bin/composer help --format=xml list To display the list of available commands, please use the list command.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

[root@rhel8 ~]# composer -V Do not run Composer as root/super user! See https://getcomposer.org/root for details Composer version 1.10.10 2020-08-03 11:35:19   [root@rhel8 ~]# composer -h Do not run Composer as root/super user! See https://getcomposer.org/root for details Usage:   help [options] [--] [<command_name>]   Arguments:   command                        The command to execute   command_name                   The command name [default: "help"]   Options:       --xml                      To output help as XML       --format=FORMAT            The output format (txt, xml, json, or md) [default: "txt"]       --raw                      To output raw command help   -h, --help                     Display this help message   -q, --quiet                    Do not output any message   -V, --version                  Display this application version       --ansi                     Force ANSI output       --no-ansi                  Disable ANSI output   -n, --no-interaction           Do not ask any interactive question       --profile                  Display timing and memory usage information       --no-plugins               Whether to disable plugins.   -d, --working-dir=WORKING-DIR  If specified, use the given directory as working directory.       --no-cache                 Prevent use of the cache   -v|vv|vvv, --verbose           Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug   Help:   The help command displays help for a given command:       php /usr/local/bin/composer help list     You can also output the help in other formats by using the --format option:       php /usr/local/bin/composer help --format=xml list     To display the list of available commands, please use the list command.