#!/bin/bash
#find-debuginfo.sh - automagically generate debug info and file list
#for inclusion in an rpm spec file.

if [ -z "$1" ] ; then BUILDDIR="."
else BUILDDIR=$1
fi

LISTFILE=$BUILDDIR/debugfiles.list
SOURCEFILE=$BUILDDIR/debugsources.list

debugdir="${RPM_BUILD_ROOT}/usr/lib/debug"

echo -n > $SOURCEFILE

[[ -n "$EXCLUDE_FROM_STRIP" ]] && \
EXCLUDE_REGEXP=`perl -e 'print "(", join("|", @ARGV), ")"' $EXCLUDE_FROM_STRIP`

# Strip ELF binaries and shared libs
for f in `find $RPM_BUILD_ROOT -path "${debugdir}" -prune -o -type f \( -perm -0100 -or -perm -0010 -or -perm -0001 \) -exec file {} \; | \
	sed -n -e 's/^\(.*\):[ 	]*.*ELF.* \(executable\|shared object\).*, not stripped/\1/p'`
do
	[[ -n "$EXCLUDE_REGEXP" ]] && egrep -q "$EXCLUDE_REGEXP" <<< "$f" && \
	    continue

	dn=$(dirname $f | sed -n -e "s#^$RPM_BUILD_ROOT##p")
	bn=$(basename $f .debug).debug

	debugdn="${debugdir}${dn}"
	debugfn="${debugdn}/${bn}"
	[ -f "${debugfn}" ] && continue

	mkdir -p "${debugdn}"
	echo extracting debug info from $f
	/usr/lib/rpm/debugedit -b "$RPM_BUILD_DIR" -d /usr/src/debug -l "$SOURCEFILE" "$f"
	if test -w "$f"; then
		eu-strip -f "${debugfn}" "$f" || :
	else
		chmod u+w "$f"
		eu-strip -f "${debugfn}" "$f" || :
		chmod u-w "$f"
	fi
done

mkdir -p ${RPM_BUILD_ROOT}/usr/src/debug
cat $SOURCEFILE | (cd $RPM_BUILD_DIR; LANG=C sort -z -u | cpio -pd0m ${RPM_BUILD_ROOT}/usr/src/debug)
# stupid cpio creates new directories in mode 0700, fixup
find ${RPM_BUILD_ROOT}/usr/src/debug -type d -print0 | xargs -0 chmod a+rx
find ${RPM_BUILD_ROOT}/usr/src/debug -type f -print0 | xargs -0 -r chmod a+r

find ${RPM_BUILD_ROOT}/usr/lib/debug -type f | sed -n -e "s#^$RPM_BUILD_ROOT##p" > $LISTFILE
find ${RPM_BUILD_ROOT}/usr/src/debug -mindepth 1 -maxdepth 1 | sed -n -e "s#^$RPM_BUILD_ROOT##p" >> $LISTFILE