Configuration

The detail for gitconfig is written in official page.

Conditional includes

includeIf section can be used to include another git configuration under certain conditions.

• gitdir: If repositories are under a specific directory, glob pattern can be used. Note that the path of this should end with /.
• gitdir/i: The same as gitdir but case-insensitive matching,
• onbranch: If current branch matches the glob pattern of onbranch.

For example, there are two files ~/.gitconfig and ~/.gitconfig-group.

• ~/.gitconfig

[user]
	email = "default@gmail.com"
[includeIf "gitdir:~/group/"]
	path = .gitconfig-group

• ~/.gitconfig-group

[user]
	email = "member@group.com"

Then if a user work on a repository under ~/group directory, his/her email becomes example@group.com, but out of the directory, it becomes example@default.com.

Exclude files from global ignore file

Set core.excludesfile config like the next command (from this stackoverflow answer):

git config --global core.excludesfile '~/.gitignore'

Use cases

Use different email for private and professional cases

If you use separate emails for private and jobs, then you wanna switch them automatically and wanna avoid configure emails on each repository. You can do this using includeIf, and put all of private repositories or job related repositories into one specific subdirectory. See “Conditional includes” for more details.

Reference

• DZone: How to Use .gitconfig’s includeIf