[RFC PATCH 1/2] dpkg-base: Handle custom source directory in do_apt_fetch

[Vijai Kumar K <Vijaikumar_Kanagarajan@mentor.com>]

With the current do_apt_fetch implementation, it is not possible to use
a custom source directory(${S}).

apt-get source by default extracts the contents of the debian source
into folder with name <pkg>_<version>.

Add provision for specifying a custom source directory.

Signed-off-by: Vijai Kumar K <Vijaikumar_Kanagarajan@mentor.com>
---
 meta/classes/dpkg-base.bbclass | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/classes/dpkg-base.bbclass b/meta/classes/dpkg-base.bbclass
index 5c7bddc..1b94b76 100644
--- a/meta/classes/dpkg-base.bbclass
+++ b/meta/classes/dpkg-base.bbclass
@@ -70,7 +70,12 @@ do_apt_fetch() {
         sudo -E chroot --userspec=$( id -u ):$( id -g ) ${BUILDCHROOT_DIR} \
             sh -c 'mkdir -p /downloads/deb-src/"$1"/"$2" && cd /downloads/deb-src/"$1"/"$2" && apt-get -y --download-only --only-source source "$2"' my_script "${DISTRO}" "${uri}"
         sudo -E chroot --userspec=$( id -u ):$( id -g ) ${BUILDCHROOT_DIR} \
-            sh -c 'cp /downloads/deb-src/"$1"/"$2"/* ${PP} && cd ${PP} && apt-get -y --only-source source "$2"' my_script "${DISTRO}" "${uri}"
+            sh -c ' \
+                dscfile="$(apt-get -y -qq --print-uris source "${2}" | cut -d " " -f2 | grep -E "*.dsc")"
+                cd ${PP}
+                cp /downloads/deb-src/"${1}"/"${2}"/* ${PP}
+                dpkg-source -x "${dscfile}" "${PPS}"' \
+                    my_script "${DISTRO}" "${uri}"
     done
 
     dpkg_undo_mounts
-- 
2.17.1