#!/bin/sh

# moved-command 1.11
# by Adam M. Costello
# <amc@cs.berkeley.edu>
#
# Put this in the old place of a command that has moved, to notify
# people if they don't have the real command in their PATH.  If they
# already have the command somewhere else in their path, this script
# exec's it transparently.

# Configure this line:
newdir=/directory/containing/command


# findother <dirname> <basename>
#
# Searches PATH and outputs the pathname of the first executable with
# the given basename which is *not* located in the given directory.
# Outputs nothing if nothing is found.  Returns 0 if something is found,
# 1 otherwise.

findother() {
  baddir=$1
  base=$2
  badrealdir=`(cd "$baddir" && pwd) 2>&-`

  oldIFS=$IFS
  IFS=:$oldIFS
  set -- $PATH
  IFS=$oldIFS

  for bindir do
    realbindir=`(cd "$bindir" && pwd) 2>&-`
    if [ "$realbindir" != "$badrealdir" -a -x "$bindir/$base" ]; then
      echo "$bindir/$base"
      return 0
    fi
  done

  return 1
}


# Main script starts here.

mydir=`dirname "$0"`
mybase=`basename "$0"`

if other=`findother "$mydir" "$mybase"`; then
  exec "$other" ${1+"$@"}
fi

if [ -x "$newdir/$mybase" ]; then
  echo "$mybase has moved to $newdir/$mybase"
else
  echo "$mybase is not in $mydir anymore"
fi