shwish.head.in

一套客户/服务器模式的备份系统代码,跨平台,支持linux,AIX, IRIX, FreeBSD, Digital Unix (OSF1), Solaris and HP-UX.

#!/bin/sh
################### Start of $RCSfile: shwish.head.in,v $ ##################
#
# $Source: /home/alb/afbackup/afbackup-3.3.8.1/RCS/shwish.head.in,v $
# $Id: shwish.head.in,v 1.2 2004/07/08 20:34:48 alb Exp alb $
# $Date: 2004/07/08 20:34:48 $
# $Author: alb $
#
#
####### description ################################################
#
#
#
####################################################################

resolvepath(){
  oldpath="$1"

  newpath="$oldpath"_
  while [ _"$newpath" != _"$oldpath" ] ; do
    newpath="$oldpath"

    oldpath=`echo "$oldpath"|sed 's#/\./#/#g;s#/\.$##g;s#//*#/#g;s#^\./##g;s#^/\.\./#/#g'`

    if [ "$oldpath" != '/' ] ; then
      set oldpath=`echo "$oldpath"|sed 's#/*$##g'`
    fi
  done

  if [ _`echo "$oldpath"|cut -c1` = _"/" ] ; then
    oldhead="/"`echo "$oldpath"|cut -c2-|sed 's#/.*$##g'`
    oldtail=`echo "$oldpath"|cut -c2-|sed 's#^[^/]*/##'`
  else
    oldhead=`echo "$oldpath"|sed 's#/.*$##g'`
    oldtail=`echo "$oldpath"|sed 's#^[^/]*/##'`
  fi
  if [ _"$oldpath" = _"$oldhead" ] ; then
    oldtail=""
  fi

  while true ; do
    if [ _"$oldhead" = _ ] ; then
      oldhead="."
    fi
    if [ ! -f "$oldhead" -a ! -d "$oldhead" ] ; then
      echo ""
      return 0
    fi

    linkchar=`ls -ld "$oldhead"|cut -c1`
    if [ $linkchar = 'l' ] ; then
      points_to=`ls -ld "$oldhead"|sed 's#^.*->[ 	]*##g'`

      if [ `echo "$points_to"|cut -c1` = '/' ] ; then
        newpath="$points_to"/"$oldtail"
      else
        newpath=`dirname "$oldhead"`/"$points_to"/"$oldtail"
      fi

      echo `resolvepath "$newpath"`
      return $?
    fi

    if [ _"$oldtail" = _ ] ; then
      oldpath="$oldhead"
      break
    fi

    oldhead="$oldhead"/`echo "$oldtail"|sed 's#/.*$##g'`
    if [ `echo "$oldtail"|grep /|wc -l` -lt 1 ] ; then
      oldtail=''
    else
      oldtail=`echo "$oldtail"|sed 's#^[^/]*/##g'`
    fi
  done

  newpath="$oldpath"_
  while [ _"$newpath" != _"$oldpath" ] ; do
    newpath="$oldpath"

    oldpath=`echo $oldpath|sed 's#[^/][^/]*/\.\./##g;s#[^/][^/]*/\.\.$##g;s#/\./#/#g;s#/\.$##g;s#//*#/#g;s#^\./##g;s#^/\.\./#/#g'`

    if [ "$oldpath" != '/' ] ; then
      oldpath=`echo "$oldpath"|sed 's#/*$##g'`
    fi
  done

  echo "$newpath"
  return 0
}

if [ _"$BACKUP_HOME" = _ ] ; then
  p="$0"
  pnam=$p
  pnam=`basename $pnam`
  if [ "$pnam" = "$0" ] ; then
    for dir in `echo $PATH | tr : " "` ; do
      if [ -x $dir/$pnam ] ; then
	p="$dir/$pnam"
	break
      fi
    done
  fi
  if [ `echo "$p"|cut -c1` != "/" ] ; then
    p="`pwd`/$p"
  fi

  BACKUP_HOME_DEFAULT=`resolvepath "$p"`
  BACKUP_HOME_DEFAULT=`dirname "$BACKUP_HOME_DEFAULT"`
  if [ `basename "$BACKUP_HOME_DEFAULT"` = bin -o `basename "$BACKUP_HOME_DEFAULT"` = sbin ] ; then
    BACKUP_HOME_DEFAULT=`dirname "$BACKUP_HOME_DEFAULT"`
  fi
else
  BACKUP_HOME_DEFAULT="$BACKUP_HOME"
fi
export BACKUP_HOME_DEFAULT


WISH=""
for dir in `echo $PATH | tr : ' '` ; do
  if [ ! -d $dir ] ; then
    continue
  fi

  progs=`/bin/ls -1 $dir | sort -r | egrep '^wish([0-9]+[.]?)*$'`
  for prog in $progs ; do
    if [ -x $dir/$prog ] ; then
      WISH=$dir/$prog
      break
    fi
  done

  if [ _"$WISH" != _ ] ; then
    break
  fi
done

if [ _"$WISH" = _ ] ; then
  echo "Error: window shell wish not found. Exiting." >&2
  exit 1
fi

args=""
sep=""
for arg in "$@" ; do
  narg=`echo "$arg" | sed 's/"/\\\\"/g'`
  args="$args$sep"'"'"$narg"'"'
  sep=" "
done

$WISH << END_OF_INPUT
set argv [ list $args ]
set argv0 "$0"
set INTL_gettext_program "@GETTEXT@"
if { ! [ file executable \$INTL_gettext_program ] } {
  unset INTL_gettext_program
}