[Github] 本地git push免用户名和密码的配置

在终端通过git config --global命令进行配置

git config --global user.email "xxx@xxmail.com"
git config --global user.name "xxx"
git config --global credential.helper store   # git push的时候记住用户名和密码
git config --global push.default simple       #从Git 2.0之后，push.default的默认值由'matching'改为'simple'

这几个命令实际上在操作用户目录下的.gitconfig文件, 其内容如下:

$ cat ~/.gitconfig 
[user]
    email = xxx@xxmail.com
    name = xxx
[credential]
    helper = store
[push]
    default = simple

另外，如果没有配置push.default这一项，git push的时候会提示以下信息，可以看到matching方式和simple方式的区别：

warning: push.default is unset; its implicit value has changed in
Git 2.0 from 'matching' to 'simple'. To squelch this message
and maintain the traditional behavior, use:

  git config --global push.default matching

To squelch this message and adopt the new behavior now, use:

  git config --global push.default simple

When push.default is set to 'matching', git will push local branches
to the remote branches that already exist with the same name.

Since Git 2.0, Git defaults to the more conservative 'simple'
behavior, which only pushes the current branch to the corresponding
remote branch that 'git pull' uses to update the current branch.

See 'git help config' and search for 'push.default' for further information.
(the 'simple' mode was introduced in Git 1.7.11. Use the similar mode
'current' instead of 'simple' if you sometimes use older versions of Git)

参考：

解决`向github提交代码是老要输入用户名密码`