[RFC PATCH v2 1/1] meta/dpkg-raw: support for special debian package dependencies

[Claudius Heine <ch@denx.de>]

Now special debian dependencies can be specified in the recipe like
this:

    DEBIAN_DEPENDS = "'libc (>= 2.16)' 'tar | bsdtar' systemd"

and the package contains this 'Depends' entry:

    Depends: libc (>= 2.16), tar | bsdtar, systemd

Signed-off-by: Claudius Heine <ch@denx.de>
---
 meta/classes/dpkg-raw.bbclass | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/meta/classes/dpkg-raw.bbclass b/meta/classes/dpkg-raw.bbclass
index 1435e10..60c1170 100644
--- a/meta/classes/dpkg-raw.bbclass
+++ b/meta/classes/dpkg-raw.bbclass
@@ -19,6 +19,15 @@ addtask install after do_unpack before do_deb_package_prepare
 # so we can put hooks etc. in there already
 do_install[dirs] = "${D}/DEBIAN"
 
+python () {
+    import re
+    debian_deps = d.getVar("DEBIAN_DEPENDS", True)
+    regex = re.compile(r"'([^']+)'|\"([^\"]+)\"|([^ ]+)")
+    debian_deps_comma = ", ".join([s for m in regex.finditer(debian_deps)
+                                     for s in m.groups() if s])
+    d.setVar("DEBIAN_DEPENDS_COMMA", debian_deps_comma)
+}
+
 do_deb_package_prepare() {
 	cat<<-__EOF__ > ${D}/DEBIAN/control
 		Package: ${PN}
@@ -32,8 +41,7 @@ do_deb_package_prepare() {
 	if [ ${DEBIAN_DEPENDS} != "" ]
 	then
 		echo -n Depends: >> ${D}/DEBIAN/control
-		echo ${DEBIAN_DEPENDS} | tr '[:blank:]' ',' >> \
-			${D}/DEBIAN/control
+		echo " ${DEBIAN_DEPENDS_COMMA}" >> ${D}/DEBIAN/control
 	fi
 	for t in pre post
 	do
-- 
2.14.3