# $HOME/.bashrc
# This is the Bash shell $BASH_ENV file (aka .bashrc).
# This file is sourced for interactive (bash -i) sessions.


# source the system wide bashrc
[ -f /etc/bashrc ] && . /etc/bashrc
[ -f /etc/bash.bashrc ] && . /etc/bash.bashrc


# shopt options
shopt -s checkwinsize   # Check window after each command.
shopt -s dotglob                # files beginning with . to show 'echo *'.
shopt -s histappend     # Append $HISTSIZE lines to $HISTFILE.


# Bash history knobs.
export HISTCONTROL=${HISTCONTROL:-"ignoreboth"} # Ignore repeated cmds, or begin with space.
export HISTIGNORE=${HISTIGNORE:-"ls:ll:la:l."}  # Explicitly ignore file listing.
export HISTTIMEFORMAT="%F %H:%M  "              # The libc strftime(3) format (man -s3 strftime).
export HISTFILE="$HOME/.bash_history"    # Default is ~/.sh_history.
export HISTSIZE=${HISTSIZE:-"1000"}      # Lines of command history logged (in memory).
export HISTFILESIZE=${HISTSIZE:-"2000"}  # maximum number of history events to save (in file).



## Terminal settings (quirks)
if [ "`uname -s`" = "HP-UX" ] && [ "$TERM" = "xterm" ]
then # fix hp-ux backspace key in xterm.
    stty intr ^c
    stty erase ^?
fi



## Terminal color capability switch.
## in order of desire: tput, ascii
## NOTE: The zsh right side escape (close-stash) is itself escaped, but not the left (open-stash).
## The aforementioned escaping may interfear with syntax highlighting of this file, no worries, it is fine.
tput setaf 4
case $? in
  0) # tput works.
     tput sgr0
     #printf "TPUT STYLE CHOSEN\n"
     Rc="${BASH:+\\[}${ZSH_VERSION:+%{}`printf \"setaf 1\n\" | tput -S`${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Yc="${BASH:+\\[}${ZSH_VERSION:+%{}`printf \"setaf 3\n\" | tput -S`${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Bc="${BASH:+\\[}${ZSH_VERSION:+%{}`printf \"setaf 4\n\" | tput -S`${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Wc="${BASH:+\\[}${ZSH_VERSION:+%{}`printf \"setaf 7\nbold\n\" | tput -S`${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Nc="${BASH:+\\[}${ZSH_VERSION:+%{}`tput sgr0`${ZSH_VERSION:+%\}}${BASH:+\\]}"
  ;;
  *) # setup the ascii methods.
     #printf "ASCII STYLE CHOSEN\n"
     Rc="${BASH:+\\[}${ZSH_VERSION:+%{}\033[0;31m${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Yc="${BASH:+\\[}${ZSH_VERSION:+%{}\033[0;33m${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Bc="${BASH:+\\[}${ZSH_VERSION:+%{}\033[0;34m${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Wc="${BASH:+\\[}${ZSH_VERSION:+%{}\033[1;37m${ZSH_VERSION:+%\}}${BASH:+\\]}"
     Nc="${BASH:+\\[}${ZSH_VERSION:+%{}\033[0m${ZSH_VERSION:+%\}}${BASH:+\\]}"
  ;;
esac


## xterm and putty support dynamic in-session modification of the titlebar.
## putty titlebar - section 4.9.1 putty User Manual
## "PuTTY allows the server to send xterm control sequences which modify the title of the window in mid-session "
## Please note the begining and ending are literal escapes (Control Sequences), and will not survive copy/paste.
## in VI - INSERT MODE - type ctrl+v - then type esc for "^[" OR ctrl+g for "^G" - then esc to exit insert mode.
titlebar () {
  ## NOTE: Might be better to negate DUMB terminals instead of inclusive list of supported terms.
  if [ "$TERM" = "xterm" ] || [ "$TERM" = "xterm-color" ] || [ "$TERM" = "sun-color" ] || [ "$TERM" = "rxvt-unicode-256xolor" ]
  #then printf ".]0;${@}." > `tty`

  # This new method uses interprited escapes, is equivilent, and works when the line is copy/pasted.
  then printf "\033]0;${@}\007" > `tty`
  fi
}



## This function updates the interactive prompt.
## Note the id(1) usage to work-around Solaris (without having to choose xpg4 id that supports -u).
setprompt() {

  _SYS=`hostname | sed 's|\..*||'`

  # The basename of the current working directory, with $HOME abbreviated with a tilde.
  # If the current working directory is a first-tier location, it is preceeded with a slash (example: /etc or /tmp).

  OIFS=$IFS
  IFS='/'
  set $PWD
  IFS=$OIFS
  unset OIFS

  # home
  if   [ "$PWD" = "$HOME" ]
    then _PWD="${Yc}~${Nc}"

  # inside home
  elif [ "${PWD}" = "${HOME}${PWD#${HOME}}" ]
    then _PWD="${Yc}~${Nc}${PWD#${HOME}}"

  # non-home
  elif [ "$#" -le "2"  ]
    then _PWD="${PWD}"
    else _PWD="${PWD##*/}"
  fi
  shift $#

  # make non-writable dirs red.
  [ -w "${PWD}" ] || _PWD="${Rc}${_PWD}${_Nc}"

  case `id | cut -d'(' -f1 | cut -c5-` in
  0)   # Privledge prompt
    _PS1="${Rc}[${Nc}${LOGNAME}${Rc}@${Nc}${_SYS}${Rc}:${Nc}${Wc}${_PWD}${Nc}${Rc}]${Nc}${Wc}# ${Nc}"
    _PS2="${Rc}>  ${Nc}"
  ;;
  *)   # User prompt
    _PS1="${Bc}[${Nc}${LOGNAME}${Bc}@${Nc}${_SYS}${Bc}:${Nc}${Wc}${_PWD}${Nc}${Bc}]${Nc}${Wc}$ ${Nc}"
    _PS2="${Bc}>  ${Nc}"
  ;;
  esac
  COLUMNS=`expr ${#_PS1} + 10`
  PS1=`echo ${_PS1}`
  PS2=`echo ${_PS2}`

  # Set xterm or Putty title bar.
  titlebar "${LOGNAME}@${_SYS}:${PWD}"

  unset _SYS _PWD
}


# This function uses the korn shell built-in CD cmd, and the setprompt function together.
# the effect is the user prompt displays updated path.
# this function is designed to replaice (alias) the cd cmd.
prompt_cd() {
  \cd "${@:-"$HOME"}" && setprompt
}





# the prompt features the working path, and colors.
unset PROMPT_COMMAND
setprompt
alias cd="prompt_cd"
alias ..='prompt_cd .. ; printf "$PWD\n"'


# List enhancements
# Solaris 5.11 may have GNU ls(1) installed.
[ "`uname -s`" = "SunOS" ] && \
[ "`uname -r`" = "5.11" ] && \
[ -x "/usr/gnu/bin/ls" ] && export PATH="/usr/gnu/bin/:$PATH" alias ls='/usr/gnu/bin/ls'

# check for GNU ls (colorful list)
ls --version 2> /dev/null | grep GNU >/dev/null 2>&1 && export LS_COLOUR="--color=auto"
# check for OSX ls (has color via -G
[ "`uname -s`" = "Darwin" ] && export LS_COLOUR="-G"


# check for human readable ( -h )
## I Don't like -h
#ls -h /dev/null 2> /dev/null 1>&2 && H='-h'

alias l.='ls -lAdF ${H} ${LS_COLOUR} .*'    # list only hidden things
alias la='ls -lAF ${H} ${LS_COLOUR}'        # list all
alias ll='ls -lF ${H} ${LS_COLOUR}'         # list long
alias ls='ls -F ${LS_COLOUR}'               # list with flags

## GNU grep, if available, has colorized output.
grep --version 2> /dev/null | grep GNU >/dev/null 2>&1 && alias grep='grep --color=auto'


# When EDITOR == vim ; alias vi to vim
[ "${EDITOR##*/}" = "vim" ] && alias vi='vim'




#THE END
export DOT_BASHRC="TRUE"

### END DEFAULT ###

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

if [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
fi

#if brew is installed (eg, we're on a mac), source the bash_completion file for it.
type -P brew &>/dev/null && source `brew --prefix`/Library/Contributions/brew_bash_completion.sh

export PATH=$PATH:~/bin
set -o vi

#override TERM so that byobu and vim display in color on Chrome's Crosh shell
#also test for if we're using rxvt and convert to xterm-color
if [ "x$TERM" = "xxterm" ] || [ "x$TERM" = "xrxvt-unicode-256color" ] ; then
  export TERM=xterm-color
fi

if [ -x /usr/bin/keychain ] ; then
 keychain --quiet ~/.ssh/id_rsa
 [ -f ~/.keychain/$HOSTNAME-sh ] && . ~/.keychain/$HOSTNAME-sh
 [ -f ~/.keychain/$HOSTNAME-sh-gpg ] && . ~/.keychain/$HOSTNAME-sh-gpg
fi

# update dotfiles
if [[ "x$SSH_AGENT_PID" != "x" || "x$SSH_AUTH_SOCK" != "x" ]]; then
  dotfiles-pull -d
fi