Bashrc commons

.bashrc

# set prompt with git info, last exit code and colors
promptCommand() {
  # values
  lastExitCode=$?
  gitRev="$(git branch 2>/dev/null | grep '^*' | colrm 1 1)"
  # colors
  # (all 8bit color codes: https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit)
  user=$(tput setaf 214)
  at=$(tput setaf 240)
  host=$(tput setaf 90)
  dir=$(tput setaf 33)
  git=$(tput setaf 135)
  lastExit=$(tput setaf $([ $lastExitCode -eq 0 ] && echo 34 || echo 124))
  clock=$(tput setaf 240)
  reset=$(tput sgr0)
  # prompt
  export PS1="\[$user\]\u\[$at\]@\[$host\]\h \[$dir\]\w\[$git\]$gitRev \[$clock\]\t\n\[$lastExit\]❯ \[$reset\]"
}
PROMPT_COMMAND="promptCommand"

# smart bash history
bind '"\e[A": history-search-backward'
bind '"\e[B": history-search-forward'

# enable keychain for ssh keys
/usr/bin/keychain --quiet $HOME/.ssh/id_rsa
source $HOME/.keychain/$HOSTNAME-sh

# add homedir scripts to path
export PATH="$HOME/bin:$PATH"

# display motd
sudo run-parts /etc/update-motd.d/