#!/bin/bash

# HACK Don't give make errors when switching between trunk and branches.
# Works by finding the .deps/*.Po files which refer to source files that don't exist, and replacing them with a single dependency on the correct source file.
# Now with PD-ksh support.

if ! rootdir="`git rev-parse --show-cdup 2> /dev/null`"
then
	echo "Not in a git repository."
	exit 0
fi

for path in src/ lib/*/ lib/*/*/
do
	srcpath="${rootdir}${path}"
	deppath="${path}.deps/"
	if [ -d "${srcpath}" -a -d "${deppath}" ]
	then
		for ext in c cpp
		do
			# Iterate over all files that might have broken dependencies.
			for fname in `cd ${srcpath} ; echo *.${ext}`
			do
				fpref="`echo "${fname}" | sed "s/\.${ext}//"`"
				srcfile="${srcpath}${fname}"
				depfile="${deppath}${fpref}.Po"

				# Check if the dependency file ${depfile} exists and is broken. (The ${srcfile} check prevents looking for files literally called "*.cpp".)
				if [ -f "${srcfile}" -a -f "${depfile}" ] && ! grep -q "\b${fname}\b" "${depfile}" 2> /dev/null
				then
					relpath="`echo "${path}" | sed "s/[^./]*\//..\//g"`"
					echo "${fpref}.o: ${relpath}${srcfile}" | tee "${depfile}"
				fi
			done
		done
	fi
done

exit 0