ParamCheck

#! /bin/csh

#
# See Message below for usage.
#

#for the error message
set Message = 0

#to skip the second iteration
set SkipSecond = 0
#
# Set file names from command line
# If not given, issue instructions.
# 

if( $1 != "" ) then
    if( -e $1 ) then
	set file1 = $1
    else
	echo "NO FILE FOUND CALLED " $1
	set Message = 1
    endif
else
    set Message = 1
endif

if( $2 != "" ) then
    if( -e $2 ) then
	set file2 = $2
    else
	echo "NO FILE FOUND CALLED " $2
	set Message = 1
    endif

else
    set Message = 1
endif

if( $3 != "" ) then
    set SkipSecond = 1
endif

if( $Message == 1 ) then
    echo "ParamCheck <file1> <file2> <SkipSecond>"
    echo "     checks diffences between two parameter files."
    echo "     if SkipSecond == 1 then the second file's parameters aren't looked for in the first"
    echo "     Doesn't quite work on parameters with more than one element"
    exit
endif

echo Comparing $file1 $file2
echo " "

#
#set up temp files that will be used for output.
#

foreach i ( TempPCdiff TempPC1 TempPC2 )
    if( -e $i ) rm $i
end

echo Parameters that differ between $file1 $file2 : > TempPCdiff
echo Parameters that are missing from $file1  > TempPC1
echo Parameters that are missing from $file2 > TempPC2

#
# Loop over lines in the first file.  For lines that don't begin with '#', 
# get the parameter its set to, and look in the other fiel for the same parameter.
# If they're the same, don't do anything.  If they differ, or one is missing, note
# the difference in the proper file (defined above)
#


foreach i ( `awk '{print $1}' $file1` ) 
    #dbg
    echo $i
    #/dbg
	if( `echo $i | cut -c 1` != "#" ) then

	#grep options: -w for "match word", -v "^#" for 'dont match lines that start with #

	#old versions of matches.  not as good, don't match vector parameters.
	#set param1 = `grep -w $i $file1 | grep -v "^#" | awk '{print $3}'`
	#set param2 = `grep -w $i $file2 | grep -v "^#" | awk '{print $3}'`

	#new version, matches vector parameters.
	#             (ignore comments)   (match name)   (get line of values)
	set param1 = `grep -v "^#"  $file1 | grep -w $i | sed -e "s:\("$i"[[:space:]]*=\)\(.*\):\2:g"`
	set param2 = `grep -v "^#"  $file2 | grep -w $i | sed -e "s:\("$i"[[:space:]]*=\)\(.*\):\2:g"`

	#remove trailing comments
	set param1 = `echo $param1 | cut -f -1 -d "//"`
	set param2 = `echo $param2 | cut -f -1 -d "//"`
	

	#echo $i " : " $param1 $param2
	#check for existance:
	if( "$param1" != "" && "$param2" != "" ) then 
	    
	    if( "$param1" != "$param2" ) then
		    echo "  "  $i  "(" $param1 ")" vs. "(" $param2 ")" >> TempPCdiff
            endif		   

	else
	    #if param 1 exists, but 2 doesnt
	    if( "$param1" != "" ) then
	       echo "  " $i $param1 >> TempPC2 
	    endif

	    if( "$param1" == "" && "$param2" == "" ) then
		echo "What the hell does $i mean?"
	    endif

    	endif
	endif #cut lines with leading '#'
end

if( "$SkipSecond" != 1 ) then

foreach i ( `awk '{print $1}' $file2` ) 
	
	if( `echo $i | cut -c 1` != "#" ) then

	#grep options: -w for "match word", -v "^#" for 'dont match lines that start with #
	set param1 = `grep -w $i $file1 | grep -v "^#" | awk '{print $3}'`
	set param2 = `grep -w $i $file2 | grep -v "^#" | awk '{print $3}'`

	#echo $i " : " $param1 $param2
	#check for existance:
	if( "$param1" == "" ) then
	    if( "$param2" == "" ) then
		echo "What the hell does $i mean?"
	    else
		echo "  " $i $param2 >> TempPC1
	    endif
		


	endif
	endif #skip lines with #
end # for
endif # skip second

set Differences = 0
set Missing1 = 0
set Missing2 = 0

#
# print the files, if non-trivial
#

if( `wc -l TempPCdiff | awk '{print $1}'` != 1 ) then
  set Differences = 1    
  cat TempPCdiff
endif

if( `wc -l TempPC1 | awk '{print $1}'` != 1 ) then
 cat TempPC1
endif

if( `wc -l TempPC2 | awk '{print $1}'` != 1 ) then
  cat TempPC2
endif

if( $SkipSecond == 1 ) then
    echo " "
    echo "Note: Skipped Second File"
endif

rm TempPCdiff TempPC2 TempPC1
#end