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[profile] / bashrc

# -*- mode: sh; coding: utf-8 -*-
#
# Bash session things
#

if [ -z "$__mdw_bashrc" ]; then

__mdw_bashrc=done

[ -z "$__mdw_profile" -a -r $HOME/.bash_profile ] && . $HOME/.bash_profile
[ -r /etc/bashrc ] && . /etc/bashrc

# --- First of all, set up the prompt string ---

if [ -t 0 ]; then

  case "$TERM" in
    linux*|screen*|xterm*|vt100*|eterm*)
      bold="\[$(tput bold)\]" unbold="\[$(tput sgr0)\]" nl="\[\r\]" ;;
    *)
      bold='' unbold='' nl='' ;;
  esac

  if (( EUID == 0 )); then
    left=`echo « | iconv -f utf8 -t //translit`
    right=`echo » | iconv -f utf8 -t //translit`
  else
    case $USER in
      mdw|mwooding)
	u="" left="[" right="]"
	;;
      *)
	u="\\u@" left="{" right="}"
	;;
    esac
    if [ "$__mdw_tty" = "`tty`" ]; then
      left="<" right=">"
    else
      export __mdw_tty="`tty`"
    fi
  fi

  if [ -z "$SSH_CLIENT" ] &&
    [ "$__mdw_sechost" != "`hostname`" ]
    then
    sec_l='(' sec_r=')'
  fi

  PS1="$nl$bold$left$sec_l$u\\h$sec_r \\w$right$unbold"
  PS2="$PS1 $bold>$unbold "

fi # is stdin a tty?

# --- Pagers are less useful within Emacs ---

case "$INSIDE_EMACS" in
  22.*,comint) export PAGER=cat ;;
esac

# --- Little preferences ---

notify=1
set -b
shopt -u cdable_vars
shopt -s cdspell
shopt -s checkhash
shopt -s checkwinsize
shopt -s cmdhist
shopt -u dotglob
shopt -s expand_aliases
shopt -s extglob
shopt -s histappend
shopt -s histreedit
shopt -u histverify
shopt -s hostcomplete
shopt -s huponexit
shopt -s interactive_comments
shopt -s lithist
shopt -u mailwarn
shopt -u nocaseglob
shopt -u nullglob
shopt -s promptvars
shopt -u shift_verbose
shopt -s sourcepath

# --- Set the CDPATH ---
#
# CDPATH=~/src:/usr/src:/usr/lib:/usr/share
# dots=..
# i=6
# while (( i > 0 )); do
#   CDPATH=$CDPATH:$dots
#   dots=$dots/..
#   (( i -= 1 ))
# done
# CDPATH=$CDPATH:/

# --- Some colour `ls' support ---

[ "${TMPDIR+yes}" ] || eval `tmpdir -b`
if [ -x /usr/bin/dircolors -o -x /usr/local/bin/dircolors ]; then
  eval `dircolors -b ~/.dircolors`
else
  unset LS_COLORS
fi

ls () {
  if [ -t 1 ]; then
    command ls $LS_OPTIONS ${LS_COLORS+--color=auto} "$@"
  else
    command ls "$@"
  fi
}

# --- Set up some simple aliases ---

alias cx='chmod a+x'
alias which="command -v"
alias ssync="rsync -e ssh"
alias rootly=$__MDW_ROOTLY
alias r=rootly
alias re="rootly $EDITOR"
alias pstree="pstree -hl"
alias cdtmp='cd ${TMPDIR-/tmp}'
alias pushtmp='pushd ${TMPDIR-/tmp}'
alias e="$EDITOR"
alias svn="svnwrap svn"
alias @="ssh"

[ -r /etc/bash_completion ] && . /etc/bash_completion
[ -r $HOME/.bash_completion ] && . $HOME/.bash_completion

# --- Make `xt' start an xterm, maybe logging into a remote host ---

xt () {
  case "$1" in
    @*)
      local remote=${1#@} title
      shift
      if [ $# -gt 0 ]; then
	title="xterm [$remote] $1"
      else
	title="xterm [$remote]"
      fi
      (xterm -title "$title" -e ssh $remote "$@" &)
      ;;
    *)
      (xterm "$@" &)
      ;;
  esac
}

# --- Turning on and off core dumps ---

core () {
  case "x$1" in
    xon|xy|xyes)
      ulimit -Sc `ulimit -Hc`
      ;;
    xoff|xn|xno)
      ulimit -Sc 0
      ;;
    x)
      local l=`ulimit -Sc`
      case $l in
	0) echo "Core dumps disabled" ;;
	unlimited) echo "Core dumps enabled" ;;
	*) echo "Core dump limit is $l blocks" ;;
      esac
      ;;
    *)
      echo >&2 "usage: core [yn]"
      return 1
      ;;
  esac
}

# --- Turning on and off path hacks ---

path-add () {
  local pathvar export dir val
  case $# in
    1) pathvar=PATH dir=$1 export="export PATH";;
    2) pathvar=$1 dir=$2 export=:;;
    *) echo >&2 "Usage: $0 [VAR] DIR";;
  esac
  eval "val=\$$pathvar"
  case ":$val:" in
    *:"$dir":*) ;;
    *) val=$dir:$val ;;
  esac
  eval "$pathvar=\$val"
  $export
}

path-remove () {
  local pathvar export dir val
  case $# in
    1) pathvar=PATH dir=$1 export="export PATH";;
    2) pathvar=$1 dir=$2 export=:;;
    *) echo >&2 "Usage: $0 [VAR] DIR";;
  esac
  eval "val=\$$pathvar"
  case ":$val:" in
    :"$dir":) val= ;;
    :"$dir":*) val=${val#$dir:} ;;
    *:"$dir":) val=${val%:$dir} ;;
    *:"$dir":*) val=${val/:$dir:/:} ;;
  esac
  eval "$pathvar=\$val"
  $export
}

pathhack () {
  if [ $# -eq 0 ]; then
    local IFS=:
    for e in $PATH; do
      case "$e" in
	"$HOME/bin/hacks/"*)
	  echo ${e#$HOME/bin/hacks/}
	  ;;
      esac
    done
    return
  fi
  local force=nil
  local path=$PATH
  while [ $# -gt 0 ]; do
    arg=$1
    case "$arg" in
      -f | --force)
	force=t
	shift
	continue
	;;
      --)
	shift
	break
	;;
      [-+]*)
	;;
      *)
	break
	;;
    esac
    hack=${arg#[+-]}
    dir=$HOME/bin/hacks/$hack
    [ -d "$dir" ] || {
      echo "$0: path hack $hack not found"
      return 1
    }
    case "$arg,$force,:$PATH:" in
      -*,*,*:"$dir":*)
	path-remove path "$dir"
	;;
      +*,t,*:"$dir":*)
	path-remove path "$dir"
	path-add path "$dir"
	;;
      +*,nil,*:"$dir":*)
	;;
      +*,*)
	path-add path "$dir"
	;;
    esac
    shift
  done
  if [ $# -eq 0 ]; then
    PATH=$path
    export PATH
  else
    PATH=$path "$@"
  fi
}

# --- Fix `man' under Slowaris ---

case "$MACHTYPE" in
  *solaris*)
    man () {
      declare -i i=0
      declare arg
      declare -a man

      for arg; do
	case "$arg" in [0-9]*) man[i+=1]="-s" ;; esac
	man[i+=1]="$arg"
      done
      command man "${man[@]}"
    }
    ;;
esac

# --- For `root' use -- some simple molly-guards ---

if (( UID == 0 )); then
  alias rm='rm -i' cp='cp -i' mv='mv -i'
  set -o noclobber
fi

[ -f "$HOME/.bashrc-local" ] && . "$HOME/.bashrc-local"

fi