bash prompt

fish_prompt.fish

function fish_prompt --description 'Write out the prompt'
  set git_sha (git rev-parse --short HEAD 2>/dev/null)
  set git_branch (git rev-parse --abbrev-ref HEAD 2>/dev/null)
  set git " $git_sha $git_branch "
  if [ $git = '   ' ]
    set git ''
  end

  set length (echo [ 00:00 AM -$git(prompt_pwd) ] | wc -c | tr -d ' ')
  set fill (printf '%*s\n' (math (tput cols)-$length) '' | tr ' ' –)

  set_color $fish_color_autosuggestion
  echo ''
  echo [ (date +'%H:%M %p') –(set_color $fish_color_param)$git(set_color $fish_color_autosuggestion)$fill (set_color $fish_color_cwd)(prompt_pwd)(set_color $fish_color_autosuggestion) ]

  switch $USER
  case root toor
    echo '# '
  case '*'
    echo '$ '
  end
end

termwide.sh

#!/bin/bash

# the goals of this prompt are:
#
# - give plenty of room for the command
# - don't start causing weird terminal cursor issues when inside a deeply nested
#   directory
# - help visually distinguish one command from the next
# - visually indicate when on another machine
#
# thanks to qmrw for a heavy bash-based cleanup
#
# based heavily on termwide prompt by Giles - created 2 November 98
# http://www.linuxselfhelp.com/howtos/Bash-Prompt/Bash-Prompt-HOWTO-12.html
#
# install by cloning this file and adding: 
#   . /path/to/script/termwide.sh
# to .profile or similar

function update_termwide {
  PS_PWD="${PWD/#$HOME/~}"
  PS_FILL=""
  PS_GIT=" $(git rev-parse --short HEAD 2>/dev/null) "
  PS_BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)
  if [ "$PS_BRANCH" != "HEAD" ]; then PS_GIT="$PS_GIT$PS_BRANCH "; fi
  if [ "$PS_GIT" == "   " ]; then PS_GIT=''; fi

  local len_prompt=$(echo -n "[ 00:00 AM -${PS_GIT}${PS_PWD} ]" | wc -c | tr -d " ")
  local len_rfill=$((COLUMNS - len_prompt - 1))
  while [[ $len_rfill > 0 ]]; do
    PS_FILL="${PS_FILL}─"
    len_rfill=$((len_rfill - 1))
  done

  if [[ $len_rfill < 0 ]]; then
    local len_cut=$((3 - len_rfill))
    PS_PWD="...$(echo -n $PS_PWD | sed -e "s/\(^.\{$len_cut\}\)\(.*\)/\2/")"
  fi
}

PROMPT_COMMAND="update_termwide${PROMPT_COMMAND:+; $PROMPT_COMMAND}"

function termwide {
  local esc_white="\[\033[1;37m\]"
  local esc_gray="\[\033[1;30m\]"
  local esc_reset="\[\033[0m\]"

  PS1="$esc_gray[ $esc_white\@$esc_gray ─$esc_white\${PS_GIT}$esc_gray\${PS_FILL} \${PS_PWD} ]\n\
\$$esc_reset "

  PS2=">$esc_reset "
}

termwide

# vim: ts=4 sw=4 et