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m1 mac composer 설치
옵션1: curl 설치
curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin/ 옵션2: php 설치
php -r "readfile('https://getcomposer.org/installer');" | php -- --install-dir=/usr/local/bin/symbolic link 설정
sudo ln -s /usr/local/bin/composer.phar /usr/local/bin/composer
Composer 버전 업그레이드 또는 다운 그레이드 / Version Upgrade or Downgrade
Assuming a regular composer installation, to rollback to version 1 of composer, you simply execute:
composer self-update --1
When you want to go back to version 2 (which you should, after updating or removing the incompatible plugins):
composer self-update --2
The above will take you to the latest on any of the two major versions.
You can also "update" to a specific version just by passing the version number to self-update:
composer self-update 1.10.12
composer self-update 2.0.7
After performing any self-update, you can specify --rollback to go back to the previously installed version.
composer self-update
composer self-update --rollback
Finally, if you are feeling adventurous, you can update to a pre-release version by executing:
composer self-update --preview
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