switch profiles

$HOME_ssh_config

Host *
 AddKeysToAgent yes
 UseKeychain yes
 IdentityFile ~/.ssh/id_rsa

#WORK
# work-github-id
Host work-github-id.github.com
  HostName github.com
  User git
  IdentityFile ~/.ssh/work-github-rsa

#PERSONAL
# for casual OSS
Host my-github-id.github.com
  HostName github.com
  User git
  IdentityFile ~/.ssh/id_rsa

#HACKING
# for something serious
# note. replace github-id-serious with your github id
Host github-id-serious.github.com
  HostName github.com
  User git
  IdentityFile ~/.ssh/serious-rsa

My-PRIVATE-GIT-REPO_.git_config

[user]
  email = hack@gmail.com
  name = Wannabe Hacker
[core]
	repositoryformatversion = 0
	filemode = true
	bare = false
	logallrefupdates = true
	ignorecase = true
	precomposeunicode = true
[remote "origin"]
	url = git@github-id-serious.github.com:github-id-serious/dotfiles.git
	fetch = +refs/heads/*:refs/remotes/origin/*
[branch "master"]
	remote = origin
	merge = refs/heads/master

switch.sh

#!/bin/bash
rm -rf $HOME/.gitconfig
touch $HOME/.gitconfig

case "$1" in
  hack)
    cat > $HOME/.gitconfig << DAT
[user]
  email = hack@gmail.com
  name = Wannabe Hacker
DAT
    ssh-add -D
    ssh-add ~/.ssh/serious-rsa
    ;;
  work)
    cat > $HOME/.gitconfig <<- DAT
[user]
  email = hate@monday.com
  name = Boring Work
DAT
    ssh-add -D
    ssh-add ~/.ssh/work-github-rsa
    ;;
  *)
    cat > $HOME/.gitconfig <<- DAT
[user]
  email = personal@gmail
  name = OSS Work
DAT
    ssh-add -D
    ssh-add ~/.ssh/id_rsa
    ;;
esac
cat $HOME/.gitconfig

zsh-prompt.theme

prompt_git_user() {
  (( $+commands[git] )) || return
  if [[ "$(git config --get oh-my-zsh.hide-status 2>/dev/null)" = 1 ]]; then
    return
  fi

  local email=`cat $HOME/.gitconfig | sed -n '2p' | sed -e 's/^[[:space:]]*//'`
  local newString="${email#*=}"
  local sanitized_email=`echo $newString | sed -e 's/^[[:space:]]*//'`
  local username=`case $sanitized_email in
    (hack@gmail.com) echo hack;;
    (personal@gmail) echo personal;;
    (hate@monday.com) echo work;;
    (*) echo oops;;
  esac`

  local PL_BRANCH_CHAR
  () {
    local LC_ALL="" LC_CTYPE="en_US.UTF-8"
    PL_BRANCH_CHAR=$'\ue0a0'         # 
  }
  local ref dirty mode repo_path

  if $(git rev-parse --is-inside-work-tree >/dev/null 2>&1); then
    repo_path=$(git rev-parse --git-dir 2>/dev/null)
    dirty=$(parse_git_dirty)
    ref=$(git symbolic-ref HEAD 2> /dev/null) || ref="➦ $(git rev-parse --short HEAD 2> /dev/null)"
    if [[ -n $dirty ]]; then
      prompt_segment yellow black
    else
      prompt_segment green $CURRENT_FG
    fi

    if [[ -e "${repo_path}/BISECT_LOG" ]]; then
      mode=" <B>"
    elif [[ -e "${repo_path}/MERGE_HEAD" ]]; then
      mode=" >M<"
    elif [[ -e "${repo_path}/rebase" || -e "${repo_path}/rebase-apply" || -e "${repo_path}/rebase-merge" || -e "${repo_path}/../.dotest" ]]; then
      mode=" >R>"
    fi

    setopt promptsubst
    autoload -Uz vcs_info

    zstyle ':vcs_info:*' enable git
    zstyle ':vcs_info:*' get-revision true
    zstyle ':vcs_info:*' check-for-changes true
    zstyle ':vcs_info:*' stagedstr '✚'
    zstyle ':vcs_info:*' unstagedstr '●'
    zstyle ':vcs_info:*' formats ' %u%c'
    zstyle ':vcs_info:*' actionformats ' %u%c'
    vcs_info
    echo -n "${ref/refs\/heads\//$PL_BRANCH_CHAR }${vcs_info_msg_0_%%}${mode}[${username}]"
  fi
}