#!/bin/bash

# pFUnit source/MakeDependenciesIncludeCollectUseStatements

# Collect into $3 the USE statements from $2, the preprocessed version
#   of $1.  These are collected into the pattern:
#   filename.o:  usePredicate1.F90...
# 
#  $1 is the file.F90
#  $2 is the file_cpp.f90
#  $3 is dependencies.tmp

# We do not automatically check to see if references are satisfied
# within the using file, so we can IGNORE those references by naming
# them here.
#
# Note: PrivateException is in Exception.F90, there is no
# PrivateException.F90 or PrivateException.o.
#
IGNORE="PrivateException"
# May need to consider case, however if we stick to our current coding
# style, we should be okay.

# Have trouble with commented use statements... see grep -v "\!" below.
# Need to watch out for use statements that refer to tokens with use or used.
# Also may have some trouble with files/modules with "use" in their names.

FILENAME=$1
FILENAME_CPP=$2
TMPFILE=$3

# echo MDICUS: ${FILENAME} ${FILENAME_CPP} ${TMPFILE}

   echo `echo ${FILENAME} | cut -f 1 -d. - `".o: " | tr -d "\n" >> ${TMPFILE};
      grep -i use ${FILENAME_CPP} | grep -v used | cut -d, -f1 - | sort | tr -s " \t\v" | uniq - | \
      egrep -v ${IGNORE} | \
      sed 's/use//g' | sed 's/_mod/.o/g' | egrep "\.o" | grep -v "\!\!" | tr -d "\n" | tr -s " \t\v" >> ${TMPFILE};  
   echo -e "\n" >> ${TMPFILE};