Makefile, git2spec.pl: use temporary builddir

to build the dracut rpm, use a temporary builddir

Makefile

@@ -66,13 +66,13 @@ dracut-$(VERSION).tar.gz:
 	git archive --format=tar $(VERSION) --prefix=dracut-$(VERSION)/ |gzip > dracut-$(VERSION).tar.gz
 
 rpm: dracut-$(VERSION).tar.bz2
-	mkdir -p rpmbuild
-	cp dracut-$(VERSION).tar.bz2 rpmbuild
-	cd rpmbuild; ../git2spec.pl $(VERSION) < ../dracut.spec > dracut.spec; \
-	rpmbuild --define "_topdir $$PWD" --define "_sourcedir $$PWD" \
+	rpmbuild=$$(mktemp -d -t rpmbuild-dracut.XXXXXX); src=$$(pwd); \
+	cp dracut-$(VERSION).tar.bz2 "$$rpmbuild"; \
+	$$src/git2spec.pl $(VERSION) "$$rpmbuild" < dracut.spec > $$rpmbuild/dracut.spec; \
+	(cd "$$rpmbuild"; rpmbuild --define "_topdir $$PWD" --define "_sourcedir $$PWD" \
 	        --define "_specdir $$PWD" --define "_srcrpmdir $$PWD" \
-		--define "_rpmdir $$PWD" -ba dracut.spec && \
-	( cd ..; mv rpmbuild/noarch/*.rpm .; mv rpmbuild/*.src.rpm .;rm -fr rpmbuild; ls *.rpm )
+		--define "_rpmdir $$PWD" -ba dracut.spec; ) && \
+	( mv "$$rpmbuild"/noarch/*.rpm .; mv "$$rpmbuild"/*.src.rpm .;rm -fr "$$rpmbuild"; ls *.rpm )
 
 syncheck:
 	@ret=0;for i in dracut-logger modules.d/99base/init modules.d/*/*.sh; do \

git2spec.pl

@@ -18,8 +18,9 @@ sub last_tag {
 
 sub create_patches {
     my $tag=shift;
+    my $pdir=shift;
     my $num=0;
-    open( GIT, 'git format-patch -N --no-signature '.$tag.' |');
+    open( GIT, 'git format-patch -N --no-signature -o "'.$pdir.'" '.$tag.' |');
     @lines=<GIT>;
     close GIT;         # be done
     return @lines;
@@ -29,8 +30,9 @@ use POSIX qw(strftime);
 my $datestr = strftime "%Y%m%d", gmtime;
 
 my $tag=shift;
+my $pdir=shift;
 $tag=&last_tag if not defined $tag;
-my @patches=&create_patches($tag);
+my @patches=&create_patches($tag, $pdir);
 my $num=$#patches + 2;
 $tag=~s/[^0-9]+?([0-9]+)/$1/;
 my $release="$num.git$datestr";