composer config 命令用来查看设置composer的配置信息，首次执行的时候还会在家目录中生成一些配置文件。默认的位置在 ~/.config/composer
查看默认的配置信息
# Author: www.phpjiaocheng.com
composer config -gl
[repositories.packagist.org.type] composer
[repositories.packagist.org.url] https?://repo.packagist.org
[repositories.packagist.org.allow_ssl_downgrade] true
[process-timeout] 300
[use-include-path] false
[preferred-install] auto
[notify-on-install] true
[github-protocols] [https, ssh]
[vendor-dir] vendor (/home/phpjiaocheng.com/vendor)
[bin-dir] {vendor-dir}/bin (/home/phpjiaocheng.com/vendor/bin)
[cache-dir] /home/phpjiaocheng.com/.cache/composer
[data-dir] /home/phpjiaocheng.com/.local/share/composer
[cache-files-dir] {cache-dir}/files (/home/phpjiaocheng.com/.cache/composer/files)
[cache-repo-dir] {cache-dir}/repo (/home/phpjiaocheng.com/.cache/composer/repo)
[cache-vcs-dir] {cache-dir}/vcs (/home/phpjiaocheng.com/.cache/composer/vcs)
[cache-ttl] 15552000
[cache-files-ttl] 15552000
[cache-files-maxsize] 300MiB (314572800)
[bin-compat] auto
[discard-changes] false
[autoloader-suffix]
[sort-packages] false
[optimize-autoloader] false
[classmap-authoritative] false
[apcu-autoloader] false
[prepend-autoloader] true
[github-domains] [github.com]
[bitbucket-expose-hostname] true
[disable-tls] false
[secure-http] true
[cafile]
[capath]
[github-expose-hostname] true
[gitlab-domains] [gitlab.com]
[store-auths] prompt
[archive-format] tar
[archive-dir] .
[htaccess-protect] true
[use-github-api] true
[lock] true
[home] /home/phpjiaocheng.com/.config/composer
composer 修改的国内腾讯云的镜像
# Author: www.phpjiaocheng.com
composer config -g repos.packagist composer https://mirrors.cloud.tencent.com/composer/
composer 修改过国内阿里云的镜像
# Author: www.phpjiaocheng.com
composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/