Do not fail on files that exist in RPM DB but not on filesystem

Files that are recorded in the RPM package with the %ghost directive.

Also utilize the %dir directive to fix the "File listed twice" warnings
which in turn requires to prevent python-bytecompiling and other
__os_install_post actions that would produce new files leading to
"Installed (but unpackaged) file(s) found" error.

sb2-tools-template.spec

@@ -1,8 +1,8 @@
-%define __strip /bin/true
 %define packages_in_tools autoconf automake bash binutils bzip2 bzip2-libs ccache cmake coreutils cpio cpp db4 diffutils doxygen elfutils elfutils-libelf elfutils-libs expat fakeroot fdupes file file-libs filesystem findutils fontconfig freetype gawk gcc glib2 glibc glibc-common glibc-devel glibc-headers gmp grep groff gzip kernel-headers libacl libarchive libattr libblkid libcap libcap libcurl libgcc libgomp libicu52 libidn liblua libmount libsb2 libsmartcols libstdc++ libuuid libxml2 m4 make mpc mpfr ncurses-libs net-tools nspr nss nss-softokn-freebl openssl-libs pam pcre perl perl-libs perl-Scalar-List-Utils perl-threads perl-threads-shared popt python python-libs qemu-usermode readline rpm rpm-build rpm-devel rpm-libs rpmlint-mini scratchbox2 sed setup sqlite tar util-linux xz xz-libs zip zlib
 %define cross_compilers   cross-@ARCH@-gcc cross-@ARCH@-binutils
-%global _python_bytecompile_errors_terminate_build 0
 %define _target_cpu @ARCH@
+# Prevent stripping, python-bytecompiling etc. as this has been already done for the packages
+%global __os_install_post %{nil}
 
 Name:          sb2-tools-@ARCH@-inject
 Version:       1.0+git3
@@ -67,10 +67,20 @@ cat > filestoignore << EOF
 EOF
 grep -vf filestoignore filestoinclude1 | sort | uniq > filestoinclude2
 # Copy files to buildroot and preserve permissions.
-tar --no-recursion -T filestoinclude2 -cpf - | ( cd %buildroot && fakeroot tar -xvpf - )
-# Add quotas around the lines as filenames contain spaces.
-sed -i "s/^\(.*\)$/\"\1\"/g" filestoinclude2
-cat filestoinclude2
+tar --no-recursion -T filestoinclude2 -cpf - | ( cd %buildroot && fakeroot tar -xvpf - ) > filesincluded
+# Add back "/" prefix, add double quotes to protect file names with spaces, use %%dir directive for
+# directories to prevent "File listed twice" warnings.
+sed -i filesincluded -e '
+    # First line is special - it is the root directory
+    1s,^\./$,%%dir /,
+    t
+    # Lines ending with / are special - they are directory paths
+    s,^\(.*\)/$,%%dir "/\1",
+    t
+    # Everything else
+    s,^.*$,"/&",
+    '
+cat filesincluded
 sed 's|:.*$|:*:16229:0:99999:7:::|' < /etc/passwd > %{buildroot}/etc/shadow
 sed 's|:.*$|:*::|' < /etc/group > %{buildroot}/etc/gshadow
 chmod 0400 %buildroot/etc/shadow
@@ -92,7 +102,7 @@ touch %buildroot/etc/sb2-tools-template
 %clean
 rm -rf $RPM_BUILD_ROOT
 
-%files -f filestoinclude2
+%files -f filesincluded
 %defattr(-,root,root)
 %dir /var/log
 %dir /root/