email.md

I put all repos in /usr/local/src/wb and the following rule from .gitconfig picks repos up in that hierarchy and applies the .gitconfig-work file

~/.gitconfig:

[includeIf "gitdir:*/wb/"]
  path = ~/.gitconfig-work

~/.gitconfig-work:

[user]
    name = Andrew Cates
    email = andrew@waybetter.com
[github]
    user = wbandrew
    password = redacted
    token = redacted

This takes care of my user email config for git commits. I go a step further by tying keys to repos. In my ~/.ssh/config I have aliases like the following. I used to then run git clone git@wbandrew.github.com:wbetterdev/wb-graphql.git to tie my repo to the id_andrew@waybetter.com key. This worked good but added more variables to the mix than I had hoped for.

~/.ssh/config:

Host *
    # Set ServerAliveInterval for all connections
    ServerAliveInterval 120
    ServerAliveCountMax 5

    # http://interrobeng.com/2013/08/25/speed-up-git-5x-to-50x/
    ControlMaster auto
    ControlPath ~/.ssh/conn-%r@%h:%p

Host gist.github.com *.gist.github.com
    Hostname gist.github.com

# See https://help.github.com/articles/using-ssh-over-the-https-port
Host ssh.github.com *.ssh.github.com 443.github.com *.443.github.com
    Hostname ssh.github.com
    Port 443

# This rule must stay below more specific host rules to avoid
# "Hostname" to be set to github.com
Host *.github.com
    Hostname github.com

Host github.com gist.github.com ssh.github.com 443.github.com *.github.com *.gist.github.com *.ssh.github.com *.443.github.com
    User git
    # Force SSH2
    Protocol 2

Host wbandrew.github.com
    Hostname github.com
    IdentitiesOnly yes
    IdentityFile ~/.ssh/id_andrew@waybetter.com

Host wbandrew.gist.github.com
    Hostname gist.github.com
    IdentitiesOnly yes
    IdentityFile ~/.ssh/id_andrew@waybetter.com

Host wbandrew.ssh.github.com wbandrew.443.github.com
    Hostname ssh.github.com
    IdentitiesOnly yes
    IdentityFile ~/.ssh/id_andrew@waybetter.com
    Port 443

However, I can tie the two techniques above to give best of both worlds. I add the following url.insteadOf configs and am able to git clone git@github.com:wbetterdev/wb-graphql.git (no wbandrew) and still use my id_andrew@waybetter.com ssh key. The insteadOf translates the urls behind the scene.

~/.gitconfig-work:

# this translates
#   git@github.com:wbetterdev/wb-graphql.git (.git/config) -->
#   git@wbandrew.github.com:wbetterdev/wb-graphql.git
[url "git@wbandrew.github.com"]
    insteadOf = "git@github.com"

# this translates
#   git@wbandrew.github.com:wbetterdev/wb-graphql.git (.git/config) -->
#   git@github.com:wbetterdev/wb-graphql.git
[url "git@github.com"]
    insteadOf = "git@wbandrew.github.com"

# this translates
#   https://wbandrew.github.com/ -->
#   https://github.com/
# [url "https://github.com/"]
#     insteadOf = "https://wbandrew.github.com/"

# this translates
#   https://wbandrew.github.com -->
#   https://github.com
# [url "https://github.com"]
#    insteadOf = "https://wbandrew.github.com"

This allows tools like hub.github.com and others to just work out of the box. If you want to go a step further take a look at ondir to setup and teardown environments based on directory.