composerの移動先を間違えたときの話

ローカル開発環境のVagrant+VirtualBoxで作ったCentOSの
/var/www/html/配下にLaravelを入れようとして格闘したのでメモします。
結論から言うと、
composer.pharを/usr/local/bin/composerに名前変更
mv composer.phar /usr/local/bin/composer
するのではなく、
mv composer.phar /usr/local/bin/composer/composer.phar と、composerディレクトリをつくってその配下に移動してしまったことが原因です。

以下、調査方法です。
cd \var\www\html
laravel new laravel

Crafting application...
PHP Warning:  file_put_contents(/var/www/html/laravel_591a618f398466590af59573919f776f.zip): failed to open stream: Permission denied in /home/vagrant/.config/composer/vendor/laravel/installer/src/NewCommand.php on line 133
PHP Warning:  ZipArchive::extractTo(): Permission denied in /home/vagrant/.config/composer/vendor/laravel/installer/src/NewCommand.php on line 151
PHP Warning:  ZipArchive::close(): Invalid or uninitialized Zip object in /home/vagrant/.config/composer/vendor/laravel/installer/src/NewCommand.php on line 153
You should verify that the "storage" and "bootstrap/cache" directories are writable.

In Process.php line 334:
                                    
  The provided cwd does not exist.  
                                    

new [--dev] [--force] [--] [<name>]

composer周りでエラーが出た模様？
とりあえず権限を確認しました。
pwd

/var/www

ll

ll
total 8
drwxr-xr-x. 2 root    root    4096 Jun 27 13:49 cgi-bin
drwxr-xr-x. 2 root root 4096 Jun 27 13:49 html

chown vagrant:vagrant html

chown: changing ownership of ‘html’: Operation not permitted

権限変更の権限がないと出たのでsudoを使います。
sudo chown vagrant:vagrant html
ll

total 8
drwxr-xr-x. 2 root    root    4096 Jun 27 13:49 cgi-bin
drwxr-xr-x. 2 vagrant vagrant 4096 Jun 27 13:49 html

改めてLaravelを入れようと思います。
cd html/
laravel new laravel

Crafting application...
sh: composer: command not found
Application ready! Build something amazing.

ls

laravel

入ったは入ったけど、composerコマンドがないといわれてる…？

pwd

/usr/local/bin/composer

php composer.phar -V

Composer version 1.8.0 2018-12-03 10:31:16

それなら、直接php composer.pharをたたいてやれ！と（Laravel用のファイルはあとで移動しようと思ってました）
php composer.phar global create-project --prefer-dist laravel/laravel laravel "5.7.*"

Changed current directory to /home/vagrant/.config/composer
The "https://repo.packagist.org/packages.json" file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages:
error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed
Failed to enable crypto
failed to open stream: operation failed
https://repo.packagist.org could not be fully loaded, package information was loaded from the local cache and may be out of date

                                                                                                            
  [Composer\Downloader\TransportException]                                                                  
  The "https://packagist.org/p/laravel/laravel%243bc08c6b87557c6612c4ffd6e23bd5099550031af06600dc0e757449c  
  cbea91d.json" file could not be downloaded: SSL operation failed with code 1. OpenSSL Error messages:     
  error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed                         
  Failed to enable crypto                                                                                   
  failed to open stream: operation failed                                                                   
                                                                                                            

create-project [-s|--stability STABILITY] [--prefer-source] [--prefer-dist] [--repository REPOSITORY] [--repository-url REPOSITORY-URL] [--dev] [--no-dev] [--no-custom-installers] [--no-scripts] [--no-progress] [--no-secure-http] [--keep-vcs] [--remove-vcs] [--no-install] [--ignore-platform-reqs] [--] [<package>] [<directory>] [<version>]

composer global create-projectコマンドを使うためには、OpenSSLが必要っぽい…？ですね。
ローカル環境にはちょっと難しく見えたのでここで断念。
このあたりで、冒頭でcomposerの移動先を間違えたことに気が付きました…。

composer周りのミスに気が付いたところで、改めてlaravelコマンドを実行してみましょう。
laravel new laravel/

-bash: laravel: command not found

laravel コマンドがないといわれてます……ﾅﾝﾃﾞ。
echo $PATH

/home/vagrant/.config/composer/vender/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/vagrant/.local/bin:/home/vagrant/bin

ll /home/vagrant/.config/composer/vendor/bin/

total 0
lrwxrwxrwx. 1 vagrant vagrant 28 Dec 16 15:33 laravel -> ../laravel/installer/laravel

パスも間違いなく通ってるように見えるのですが…。
今回は細かい原因追及をやめ、直叩きで実行できないか確認してみます。
/home/vagrant/.config/composer/vendor/bin/laravel -V

Laravel Installer 2.0.1

直叩きならうまくいってますね。今回はこちらでいきます。
cd /var/www/html/ /home/vagrant/.config/composer/vendor/bin/laravel new laravel

Crafting application...
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Package operations: 86 installs, 0 updates, 0 removals
~略~
Application ready! Build something amazing.

ls