.shared_env

#!/bin/sh
#
# Adam's shared environment startup file
#
# $Id$
#
# This should get run as part of setting up the environment
# of any sh-compatible shell, including non-interactive ones;
# hence it should be kept as fast and as portable as possible.
# Note that that means silly things like [ ! -e foo ] rather
# than ! [ -e foo ] ...

# Allow disabling of entire environment suite
[ -n "$INHERIT_ENV" ] && return 0

[ -n "$shared_env_loaded" ] && return 0

# {{{ Are we interactive?

case "$-" in
  *i*) shell_interactive=y ;;
    *) shell_interactive=  ;;
esac

# }}}

# {{{ Loading status

#[ "$shell" = -zsh ] && unsetopt function_argzero

sh_load_status () {
  # Find the name of the running shell
  _this_shell=${shell:-${0##*/}}

  # Find the filename of the running script
  if [ -n "$BASH_SOURCE" ]; then
    _this_script="${BASH_SOURCE[0]}"
    # Deduct 1 because array starts at 0, and another 1 because
    # we want to ignore this stack frame (inside sh_load_status)
    _this_script="${BASH_SOURCE[$(( ${#BASH_SOURCE[@]} - 2))]}"
    # Sheesh.  $ZSH_SOURCE[-2], anyone?
  else
    _this_script="$0"
    # Unfortunately in zsh there seems to be no way of determining
    # the currently running file if a function is being run, unless
    # function_argzero is unset :-/
    [ "$_this_script" = sh_load_status ] && _this_script=
    [ "$_this_script" = -zsh ] && _this_script=
  fi
  [ -n "$_this_script" ] && _this_script=": $_this_script"

  # Leave status printed?
  
  if [ "${DEBUG_LOCAL_HOOKS:-0}" -ge 2 ]; then
    debug="\n"
  fi
  
  # \e[0K is clear to right
  if [ -n "$shell_interactive" ]; then
    echo -e -n "\r$_this_shell$_this_script: $* ... \e[0K$debug"
  fi
}

# }}}

sh_load_status .shared_env

# {{{ ZDOTDIR, ZDOTDIRPATH, ZDOTUSER

# See .zshenv

zdotdir=${ZDOTDIR:-$HOME}
ZDOTDIR="$zdotdir"
ZDOT_RUN_HOOKS="$ZDOTDIR/.zsh/functions/run_hooks"
ZDOT_LIST_HOOKS="$ZDOTDIR/.zsh/functions/list_hooks"
export ZDOTDIR ZDOT_RUN_HOOKS ZDOT_LIST_HOOKS

# Define a search path to be used by run_hooks
if [ "$ZDOTDIR" = "$HOME" ]; then
  ZDOTDIRPATH=$ZDOTDIR
  ZDOTDIRREVPATH=$ZDOTDIR
else
  OTHER_USER=1
  export OTHER_USER
  ZDOTDIRPATH="$ZDOTDIR $HOME"
  ZDOTDIRREVPATH="$HOME $ZDOTDIR"
fi
export ZDOTDIRPATH ZDOTDIRREVPATH

[ -z "$ZDOTUSER" ] && [ -e ~/.zdotuser ] && ZDOTUSER=`cat ~/.zdotuser`
export ZDOTUSER

# }}}

# {{{ HOST / HOSTNAME

: ${HOST:=${HOSTNAME:-`hostname`}}
: ${HOSTNAME:=$HOST}
export HOST HOSTNAME

# }}}
# {{{ USER / USERNAME

# zsh sets USERNAME, GROUPS, and E?[UG]ID
# bash only sets E?UID
USER=${USERNAME:-`id -un`}
: ${USERNAME:=$USER}
export USER USERNAME

# }}}
# {{{ HOME

# Don't leave history files in /
: ${HOME:=/}
if [ "$HOME" = '/' ]; then
  if [ -d /root ]; then
    HOME=/root
  elif [ -d /var/tmp ]; then
    new_home=/var/tmp/root.tmphome
    if [ -d "$new_home" ] || mkdir "$new_home"; then
      HOME="$new_home"
    fi
  fi
fi
[ "$HOME" = '/' ] && echo "Warning: ~ is /"

# }}}
# {{{ PATH

# Don't trust system-wide PATH?  Remember what it was, for reference.
syspath=$HOME/.syspath.$HOST
if ! [ -e $syspath ]; then
    # Ignore failed write as home directory is sometimes locked down
    # cross-WAN.
    echo "$PATH" 2>/dev/null > "$syspath" 
fi
PATH=/usr/local/bin:/usr/X11R6/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin

# ... or *do* trust system-wide PATH
#PATH=/usr/local/bin:/usr/X11R6/bin:/usr/local/sbin:/usr/sbin:/sbin:$PATH

. $ZDOTDIR/.zsh/functions/enable_wordsplit
newpaths=
for dir in $ZDOTDIRREVPATH; do
  for newpath in                        \
                 $dir/sbin              \
                 $dir/bin               \
                 $dir/local/$OSTYPE/bin \
                 $dir/local/sbin        \
                 $dir/local/bin         \
  ; do
    if [ -d $newpath ]; then
        if [ -z "$newpaths" ]; then
            newpaths=$newpath
        else
            newpaths=$newpaths:$newpath
        fi
    fi
  done
done
restore_wordsplit
PATH=$newpaths:$PATH

# }}}
# {{{ MANPATH

# In order to avoid forks here, this is done in .zshrc

# }}}
# {{{ grep

# Why would you ever want grep to treat dirs like normal files?
export GREP_OPTIONS='--directories=skip'

# }}}
# {{{ GNU screen

case "$TERM" in
  screen*) IN_SCREEN=yes ; export IN_SCREEN ;;
esac

export SCREENRC=$ZDOTDIR/.screenrc

# }}}
# {{{ INPUTRC

# no crappy RedHat inputrcs, thankyouverymuch.  Which fucking *idiot*
# set convert-meta to off?
[ -n "$INPUTRC" ] && unset INPUTRC

# }}}
# {{{ COLUMNS

# Some programs might find this handy.  Shouldn't do any harm.

export COLUMNS

# }}}
# {{{ OSTYPE

# Can come in handy too, if the shell sets it (bash and zsh do).
export OSTYPE

# }}}
# {{{ Pager

export METAMAIL_PAGER='less -r'
export PERLDOC_PAGER='less -r'
export PAGER='less'
export LESS='-h100 -i -j1 -M -q -y100'
export LESSOPEN="|$ZDOTDIR/bin/lesspipe.sh %s"
#export LESSCLOSE='/usr/local/bin/lessclose.sh %s %s'

# }}}
# {{{ POSIXLY_CORRECT for patch

#export POSIXLY_CORRECT=yes

# }}}
# {{{ Commonly used directories

# Have cdable_vars set in zsh, so don't need 'hash -d' in front of these
# and can be reused from any shell

LI=/usr/src/linux
L4=/usr/src/linux-2.4
CV=/usr/local/cvsroot
RC=/etc/rc.d/init.d
ID=/etc/init.d # LSB
VL=/var/log
VLH=$VL/httpd
SC=/etc/sysconfig
SCN=/etc/sysconfig/network
NS=/etc/sysconfig/network-scripts
# in zsh:
#hash -df

# }}}

. $ZDOT_RUN_HOOKS .shared_env.d

shared_env_loaded=y