#! /bin/sh
# First line invokes Bourne shell
# ============================================================================
# ABSTRACT:
#	Bourne script for checking/generating checksums files for the
#	Medley release. The script will generate a checksum-file for each
#	release directory, containing the corresponding checksums for all
#	files residing in the directory. The files having incorrect
#	checksums will be reported with a message. The checksum-files will
#	be put under:
#	<medleydir>/checksumdir (Normally /usr/local/lde/checksumdir).
#	
#
# SYNOPSIS:
#	ldechecksum [-cg]  medleydir  [ dir | dirgroup ]
#
#	-c 	compare checksumfiles "FOO.check" with "FOO.sum" (default).
#	-g 	generate checksumfiles "FOO.sum".
#	medleydir is the name of the Medley installation directory (normally
#		is "/usr/local/lde").
#	dir	can be any specific directory residing under medleydir. Only
#		relative pathnames with respect to medleydir are accepted.
#	dirgroup can be either "all" (default), "fonts" or "lisp" which
#		means the "install.sunosX", "lisplibrary" and "lispsysouts" 
#		directories.
#
# CHANGES:
#	08-23-90 Carl Gadener : Added install.sunos4.1
#	05-05-89 Carl Gadener : Added lispusers as an option
#	03-30-89 Carl Gadener : Added fonts and fonts/press
#	01-19-89 Carl Gadener : Parameter "medleydir" is now mandatory. Also
#				check that "checksum" files were installed.
#	12-22-88 Carl Gadener : Compressed the big "case $dirspec" statement
#	12-15-88 Carl Gadener : Rewrote it for Bourne shell due to limitation
#				factors in CSH
#	12-12-88 Carl Gadener & Larry Harada : Creation of script
# ============================================================================
#
# First case statement checks arguments to ldechecksum
case $# in
  0) echo "Usage: ldechecksum [ -cg ] medleydir [ dir | dirgroup ] "
     exit 1 ;;
  1) case $1 in
       -*) echo "Usage: ldechecksum [ -cg ] medleydir [ dir | dirgroup ] "
           exit 1 ;;
       *)  arg="-c"
           medleydir=$1
           dirspec=all
           break ;;
     esac ;;
  [23]) 
     case $1 in
       -[cg]) arg=$1
           medleydir=$2
           if test $# = 3
           then 
             dirspec=$3
           else
             dirspec=all
           fi
           break  ;;
       -*) echo "Usage: ldechecksum [ -cg ] medleydir [ dir | dirgroup ] "
           exit 1 ;;
       *)  arg="-c"
           medleydir=$1
           if test $# = 2
           then
              dirspec=$2
           else
              echo "Unexpected arg: $3"
              exit 1
           fi
           break  ;;
     esac ;;
  *) echo "Usage: ldechecksum [ -cg ] medleydir [ dir | dirgroup ] "
     exit 1 ;;
esac

#	Checking if the Medley directory exists
if test -d $medleydir
then 
   cd $medleydir

#	Checking that script is correctly installed
   if test -d checksumdir \
        -a -f checksumdir/ldechecksum \
        -a -f checksumdir/checksum
   then

      lispdirs="install.sunos3 install.sunos4 install.sunos4.1 lisplibrary lispsysouts"
      fonts="JIS1 JIS2 chinese miscellaneous presentation printwheel \
             publishing"

      if test $arg = "-g"
      then 
	  operation="Generating"
      else   #$arg = "-c"
	  operation="Verifying"
      fi

      case $dirspec in
        all)
          checksumdir/ldechecksum $arg `pwd` lisp
          checksumdir/ldechecksum $arg `pwd` fonts/display
          checksumdir/ldechecksum $arg `pwd` fonts/interpress
          checksumdir/ldechecksum $arg `pwd` fonts/press
        ;;
        lisp)
	   echo "----------------------------------------------------"
           echo "$operation checksums for Lisp directories"
	   echo "----------------------------------------------------"
           for file in $lispdirs
           do
              checksumdir/checksum $arg $file
           done
        ;;
        fonts)
          checksumdir/ldechecksum $arg `pwd` fonts/display
          checksumdir/ldechecksum $arg `pwd` fonts/interpress
          checksumdir/ldechecksum $arg `pwd` fonts/press
        ;;
        fonts/display | \
	fonts/interpress)
	   fonttype=`basename $dirspec`
	   echo "----------------------------------------------------"
           echo "$operation checksums for $fonttype font directories"
	   echo "----------------------------------------------------"
           for file in $fonts
           do
             checksumdir/checksum $arg $dirspec/$file
       	   done
        ;;
#	All Medley directories at the "lowest" level
        install.sunos3 | \
	install.sunos4 | \
	install.sunos4.1 | \
	lisplibrary | \
	lispsysouts | \
	lispusers | \
        fonts/display/JIS1 | \
	fonts/display/JIS2 | \
	fonts/display/chinese | \
        fonts/display/miscellaneous | \
	fonts/display/presentation | \
	fonts/display/printwheel | \
	fonts/display/publishing | \
        fonts/interpress/JIS1 | \
	fonts/interpress/JIS2 | \
	fonts/interpress/chinese | \
	fonts/interpress/miscellaneous | \
	fonts/interpress/presentation | \
	fonts/interpress/printwheel | \
	fonts/interpress/publishing | \
	fonts/press)
           checksumdir/checksum $arg $dirspec
	;;
        *) echo "$dirspec : No such directory/grouping under `pwd`"
            exit 1 ;;
      esac

   else 
     echo "`pwd`/checksumdir : No such directory or script incorrectly installed"
     exit 1
   fi

else
   echo "$medleydir : No such directory"
   exit 1
fi