sys-apps/policycoreutils: Apply Flatcar modifications

Prepare the changes for upstreaming:

- Hide python dependencies behind the python USE flag.

- Allow using original sources, without Gentoo modifications with the
  vanilla USE flag.

  - This also hides app-admin/setools dependency behind this USE
    flag. I'm not sure if anything in policycoreutils requires
    anything from that package - I assumed that Gentoo-provided rlpkg
    maybe does.

- Keep using /var/lib/selinux as a SELinux policy directory. We will
  use INSTALL_MASK to skip installation of the directory and will add
  a tmpfiles config file to coreos-base/misc-files instead.

Signed-off-by: Mathieu Tortuyaux <mtortuyaux@microsoft.com>
Signed-off-by: Krzesimir Nowak <knowak@microsoft.com>

sdk_container/src/third_party/coreos-overlay/sys-apps/policycoreutils/policycoreutils-3.8.1.ebuild

@@ -17,13 +17,13 @@ HOMEPAGE="https://github.com/SELinuxProject/selinux/wiki"
 if [[ ${PV} == 9999 ]]; then
 	inherit git-r3
 	EGIT_REPO_URI="https://github.com/SELinuxProject/selinux.git"
-	SRC_URI="https://dev.gentoo.org/~perfinion/distfiles/policycoreutils-extra-${EXTRAS_VER}.tar.bz2"
+	SRC_URI="!vanilla? ( https://dev.gentoo.org/~perfinion/distfiles/policycoreutils-extra-${EXTRAS_VER}.tar.bz2 )"
 	S1="${WORKDIR}/${P}/${PN}"
 	S2="${WORKDIR}/policycoreutils-extra"
 	S="${S1}"
 else
 	SRC_URI="https://github.com/SELinuxProject/selinux/releases/download/${MY_PV}/${MY_P}.tar.gz
-		https://dev.gentoo.org/~perfinion/distfiles/policycoreutils-extra-${EXTRAS_VER}.tar.bz2"
+		!vanilla? ( https://dev.gentoo.org/~perfinion/distfiles/policycoreutils-extra-${EXTRAS_VER}.tar.bz2 )"
 	KEYWORDS="amd64 arm arm64 x86"
 	S1="${WORKDIR}/${MY_P}"
 	S2="${WORKDIR}/policycoreutils-extra"
@@ -32,17 +32,30 @@ fi
 
 LICENSE="GPL-2"
 SLOT="0"
-IUSE="audit pam split-usr"
+IUSE="audit pam split-usr vanilla +python"
-REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+REQUIRED_USE="
+	!vanilla? ( python ${PYTHON_REQUIRED_USE} )
+"
 
-DEPEND=">=sys-libs/libselinux-${PV}:=[python,${PYTHON_USEDEP}]
+DEPEND="
-	>=sys-libs/libsemanage-${PV}:=[python(+),${PYTHON_USEDEP}]
+	python? (
+		>=sys-libs/libselinux-${PV}:=[python,${PYTHON_USEDEP}]
+		>=sys-libs/libsemanage-${PV}:=[python(+),${PYTHON_USEDEP}]
+		audit? ( >=sys-process/audit-1.5.1[python,${PYTHON_USEDEP}] )
+		${PYTHON_DEPS}
+	)
+	!python? (
+		>=sys-libs/libselinux-${PV}:=
+		>=sys-libs/libsemanage-${PV}:=
+		audit? ( >=sys-process/audit-1.5.1 )
+	)
 	>=sys-libs/libsepol-${PV}:=
 	sys-libs/libcap-ng:=
-	>=app-admin/setools-4.2.0[${PYTHON_USEDEP}]
-	audit? ( >=sys-process/audit-1.5.1[python,${PYTHON_USEDEP}] )
 	pam? ( sys-libs/pam:= )
-	${PYTHON_DEPS}"
+	!vanilla? (
+		>=app-admin/setools-4.2.0[${PYTHON_USEDEP}]
+	)
+"
 
 # Avoid dependency loop in the cross-compile case, bug #755173
 # (Still exists in native)
@@ -53,7 +66,7 @@ RDEPEND="${DEPEND}
 	app-misc/pax-utils"
 
 PDEPEND="sys-apps/semodule-utils
-	sys-apps/selinux-python"
+	python? ( sys-apps/selinux-python )"
 
 src_unpack() {
 	# Override default one because we need the SRC_URI ones even in case of 9999 ebuilds
@@ -71,28 +84,33 @@ src_prepare() {
 		eapply "${FILESDIR}/policycoreutils-3.1-0001-newrole-not-suid.patch"
 	fi
 
-	# rlpkg is more useful than fixfiles
+	if ! use vanilla; then
-	sed -i -e '/^all/s/fixfiles//' "${S}/scripts/Makefile" \
+		# rlpkg is more useful than fixfiles
-		|| die "fixfiles sed 1 failed"
+		sed -i -e '/^all/s/fixfiles//' "${S}/scripts/Makefile" \
-	sed -i -e '/fixfiles/d' "${S}/scripts/Makefile" \
+			|| die "fixfiles sed 1 failed"
-		|| die "fixfiles sed 2 failed"
+		sed -i -e '/fixfiles/d' "${S}/scripts/Makefile" \
+			|| die "fixfiles sed 2 failed"
+	fi
 
 	eapply_user
 
 	sed -i 's/-Werror//g' "${S1}"/*/Makefile || die "Failed to remove Werror"
 
-	python_copy_sources
+	if ! use vanilla; then
-	# Our extra code is outside the regular directory, so set it to the extra
+		python_copy_sources
-	# directory. We really should optimize this as it is ugly, but the extra
+		# Our extra code is outside the regular directory, so set it to the extra
-	# code is needed for Gentoo at the same time that policycoreutils is present
+		# directory. We really should optimize this as it is ugly, but the extra
-	# (so we cannot use an additional package for now).
+		# code is needed for Gentoo at the same time that policycoreutils is present
-	S="${S2}"
+		# (so we cannot use an additional package for now).
-	python_copy_sources
+		S="${S2}"
+		python_copy_sources
+	fi
 }
 
 src_compile() {
 	building() {
-		emake -C "${BUILD_DIR}" \
+		local build_dir=${1}
+		emake -C "${build_dir}" \
 			AUDIT_LOG_PRIVS="y" \
 			AUDITH="$(usex audit y n)" \
 			PAMH="$(usex pam y n)" \
@@ -100,17 +118,27 @@ src_compile() {
 			CC="$(tc-getCC)" \
 			LIBDIR="\$(PREFIX)/$(get_libdir)"
 	}
-	S="${S1}" # Regular policycoreutils
+	if ! use vanilla; then
-	python_foreach_impl building
+		building_with_python() {
-	S="${S2}" # Extra set
+			building "${BUILD_DIR}"
-	python_foreach_impl building
+		}
+		S="${S1}" # Regular policycoreutils
+		python_foreach_impl building_with_python
+		S="${S2}" # Extra set
+		python_foreach_impl building_with_python
+		unset -f building_with_python
+	else
+		S="${S1}" # Regular policycoreutils
+		building "${S}"
+	fi
+	unset -f building
 }
 
 src_install() {
-	# Python scripts are present in many places. There are no extension modules.
+	installation-policycoreutils-base() {
-	installation-policycoreutils() {
+		local build_dir=${1}
 		einfo "Installing policycoreutils"
-		emake -C "${BUILD_DIR}" DESTDIR="${D}" \
+		emake -C "${build_dir}" DESTDIR="${D}" \
 			AUDIT_LOG_PRIVS="y" \
 			AUDITH="$(usex audit y n)" \
 			PAMH="$(usex pam y n)" \
@@ -118,22 +146,34 @@ src_install() {
 			CC="$(tc-getCC)" \
 			LIBDIR="\$(PREFIX)/$(get_libdir)" \
 			install
-		python_optimize
 	}
 
-	installation-extras() {
+	if ! use vanilla; then
-		einfo "Installing policycoreutils-extra"
+		# Python scripts are present in many places. There are no extension modules.
-		emake -C "${BUILD_DIR}" \
+		installation-policycoreutils() {
-			DESTDIR="${D}" \
+			installation-policycoreutils-base "${BUILD_DIR}"
-			install
+			python_optimize
-		python_optimize
+		}
-	}
 
-	S="${S1}" # policycoreutils
+		installation-extras() {
-	python_foreach_impl installation-policycoreutils
+			einfo "Installing policycoreutils-extra"
-	S="${S2}" # extras
+			emake -C "${BUILD_DIR}" \
-	python_foreach_impl installation-extras
+				DESTDIR="${D}" \
-	S="${S1}" # back for later
+				install
+			python_optimize
+		}
+
+		S="${S1}" # policycoreutils
+		python_foreach_impl installation-policycoreutils
+		S="${S2}" # extras
+		python_foreach_impl installation-extras
+		S="${S1}" # back for later
+		unset -f installation-extras installation-policycoreutils
+	else
+		S="${S1}" # policycoreutils
+		installation-policycoreutils-base "${S}"
+	fi
+	unset -f installation-policycoreutils-base
 
 	# remove redhat-style init script
 	rm -fR "${D}/etc/rc.d" || die
@@ -152,10 +192,12 @@ src_install() {
 	dodir /var/lib/selinux
 	keepdir /var/lib/selinux
 
-	# Set version-specific scripts
+	if ! use vanilla; then
-	for pyscript in rlpkg; do
+		# Set version-specific scripts
-	  python_replicate_script "${ED}/usr/sbin/${pyscript}"
+		for pyscript in rlpkg; do
-	done
+			python_replicate_script "${ED}/usr/sbin/${pyscript}"
+		done
+	fi
 }
 
 pkg_postinst() {