.bashrc

# Reminder:
# this script *should generate no output* or it will break the scp and rcp commands.

# colors for ls, etc.
#eval `dircolors -b /etc/DIR_COLORS`

# activate bash-completion, if we have it:
[ -f /etc/bash_completion ] && source /etc/bash_completion
if [ -d ~/.bash_completion.d/ ]; then
  for c in ~/.bash_completion.d/*; do
    . "$c"
  done
fi


__has_parent_dir () {
  # Utility function so we can test for things like .git/.hg without firing
  # up a separate process
  test -d "$1" && return 0;

  current="."
  while [ ! "$current" -ef "$current/.." ]; do
    if [ -d "$current/$1" ]; then
      return 0;
    fi
    current="$current/..";
  done

  return 1;
}

__vcs_name() {
  if [ -d .svn ]; then
    echo " svn";
  elif [ -d RCS ];   then
    echo " RCS";
  elif __has_parent_dir ".git"; then
    echo "$(__git_ps1 " g %s")";
  elif __has_parent_dir ".hg"; then
    echo " h $(hg branch)"
  fi
}

# prompt code
# handy docs: http://blog.sanctum.geek.nz/bash-prompts/

# colors
color_green='\[\e[0;32m\]'
color_maroon='\[\e[0;1;35m\]'
color_teal='\[\e[0;36m\]'
color_white='\[\e[0;37m\]'
color_yellow='\[\e[0;33m\]'

color_reset='\[\e[0m\]'

# variable color, depending on whether we are root, sudo'd as a user, or simply us
set_user_color() {
  # \[, \e, and \] would need extra escaping, so for clarity we return only the color code
  white_on_red='[0;41m'
  yellow_on_blue='[0;33;44m'
  color_reset='[0m'
  if [[ $EUID -eq 0 ]]; then
    echo $white_on_red
  elif [[ -n $SUDO_USER ]]; then
    echo $yellow_on_blue
  else
    printf $color_reset
  fi
}
user_color='\[\e$(set_user_color)\]'

# invisible/control components
set_terminal_title='\[\e]0;\h\007\]' # set terminal title to host name

# colored components
user_and_host=${color_yellow}'\u@\h' # user@host
date_and_time=${color_teal}'\D{%d %b %T}' # day month HH:MM:SS
working_dir=${color_maroon}'\w' # current working directory
repo=${color_green}'$(__vcs_name)' # vcs info, from $__vcs_name custom function
got_root=${user_color}'\$' # do we have root? $ or #

# gather the pieces together to set the bash prompt:
visible_prompt="
${user_and_host} ${date_and_time} ${working_dir}${repo}
${got_root}${color_reset} "
export PS1="${set_terminal_title}${visible_prompt}"

# end of bash prompt config

export TERM=xterm
export EDITOR=vim
export VISUAL=$EDITOR
# #3 scroll rightwards: 3 chars
# i ignore case
# M long prompt
# R raw control chars
# S chop long lines
# x3 tab stops: 3
# X no termcap init
export LESS="-#3iMRSx3X"
export PAGER=less
export HISTIGNORE="&:ls:[bf]g:exit"
HISTSIZE=500000
HISTFILESIZE=5000000
export BYOBU_NO_TITLE=1
# for my own python development, usually don't want bytecode file clutter
export PYTHONDONTWRITEBYTECODE=x

# set readable colors for dark background
# https://geoff.greer.fm/lscolors/
export LSCOLORS=xefxcxdxbxegedabagacad
export LS_COLORS='di=0;44:ln=35:so=32:pi=33:ex=31:bd=34;46:cd=34;43:su=30;41:sg=30;46:tw=30;42:ow=30;43'

# ensure multi-line commands stay as a single history command
shopt -s cmdhist
# do not string together multi-line commands with semi-colons in history
shopt -s lithist
shopt -s histverify
# append bash history
shopt -s histappend
# expand aliases for non-login shell
shopt -s expand_aliases
# include dot-files in glob expansion
shopt -s dotglob
# vi mode
set -o vi

alias vi="vim"
alias sshn="ssh -o UserKnownHostsFile=/dev/null -o GlobalKnownHostsFile=/dev/null"
alias scpn="scp -o UserKnownHostsFile=/dev/null -o GlobalKnownHostsFile=/dev/null"
alias trunz="truncate -s 0"

# only pull things from previous history matching line typed so far
bind '"\e[A":history-search-backward'
# only pull things from following history matching line typed so far
bind '"\e[B":history-search-backward'

# Linux
if [ z`uname` = 'zLinux' ]; then
  alias ls='ls --color'
  alias s="sudo"

  # Debian/Ubuntu
  if [ -f /etc/debian_version ]; then
    # http://www.debian.org/doc/manuals/maint-guide/modify.en.html
    alias dquilt="quilt --quiltrc=${HOME}/.quiltrc-dpkg"

  # RHELish
  elif [ -f /etc/redhat-release ]; then
    # the default path is sparse; 5.* only?
    export PATH="$PATH:/sbin:/usr/sbin"
  fi

# OS X
elif [ z`uname` = 'zDarwin' ]; then
  # Homebrew executables
  eval "$(/opt/homebrew/bin/brew shellenv)"
  alias ls='ls --color'
  command -v gfind >/dev/null && alias find=gfind
  alias s="sudo"

  VIRTUALENVWRAPPER_VIRTUALENV='/usr/local/share/python/virtualenv'
  VIRTUALENVWRAPPER='/usr/local/share/python/virtualenvwrapper.sh'
  if [ ! -f $VIRTUALENVWRAPPER_VIRTUALENV -o ! -f $VIRTUALENVWRAPPER ]; then
    unset VIRTUALENVWRAPPER_VIRTUALENV
    unset VIRTUALENVWRAPPER
  fi

  if [ -d $(brew --prefix)/etc/bash_completion.d/ ]; then
    for c in $(brew --prefix)/etc/bash_completion.d/*; do
       . "$c"
    done
  fi

  # https://apple.stackexchange.com/questions/371997/suppressing-zsh-verbose-message-in-macos-catalina
  export BASH_SILENCE_DEPRECATION_WARNING=1

fi

# https://apple.stackexchange.com/questions/141702/open-a-new-safari-window-in-the-current-space-from-terminal-with-multiple-tabs/141721#141721
function Safari {
  # Will open a New Safari window with argument 1.
  osascript <<EOD
  tell application "Safari" to make new document with properties {URL:"$1"}
  return
EOD
}

# also use my own personal executables
PATH=$PATH:~/bin:~/.cabal/bin

alias lr='ls -lrt'

# virtualenvwrapper and virtualenv
if [ -n "$VIRTUALENVWRAPPER" -a -n "$VIRTUALENVWRAPPER_VIRTUALENV" ]; then
  export VIRTUALENVWRAPPER_VIRTUALENV
  export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'
  source $VIRTUALENVWRAPPER
fi

# rbenv
if which rbenv > /dev/null 2>&1; then
  eval "$(rbenv init -)";
fi

# push/pop shortcuts
alias u='pushd'
alias o='popd'
alias d='dirs'

#show off (nothing)
alias cyphertracer='hexdump -C /dev/random | grep --color=always "ca fe"'