[RFC 09/15] dpkg: Build packages with sbuild

[Anton Mikanovich <amikan@ilbers.de>]

Use previously exported to schroot rootfs to build the package with
sbuild tool. Provide isar-apt as extra repository to be automatically
add to apt sources.

Signed-off-by: Anton Mikanovich <amikan@ilbers.de>
---
 meta/classes/dpkg.bbclass | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/meta/classes/dpkg.bbclass b/meta/classes/dpkg.bbclass
index 29e2b89..524aecc 100644
--- a/meta/classes/dpkg.bbclass
+++ b/meta/classes/dpkg.bbclass
@@ -2,6 +2,7 @@
 # Copyright (C) 2015-2018 ilbers GmbH
 
 inherit dpkg-base
+inherit sbuild
 
 PACKAGE_ARCH ?= "${DISTRO_ARCH}"
 
@@ -34,10 +35,16 @@ do_install_builddeps[lockfiles] += "${REPO_ISAR_DIR}/isar.lock"
 
 addtask devshell after do_install_builddeps
 
+ISAR_APT_REPO ?= "deb [trusted=yes] file:///isar-apt/${DISTRO}-${DISTRO_ARCH}/apt/${DISTRO} ${DEBDISTRONAME} main"
+
 # Build package from sources using build script
 dpkg_runbuild() {
     E="${@ isar_export_proxies(d)}"
     export PARALLEL_MAKE="${PARALLEL_MAKE}"
-    sudo -E chroot --userspec=$( id -u ):$( id -g ) ${BUILDCHROOT_DIR} \
-         /isar/build.sh ${PP}/${PPS} ${PACKAGE_ARCH}
+
+    sbuild -A -n -c ${SBUILD_CHROOT} --extra-repository="${ISAR_APT_REPO}" \
+        --host=${PACKAGE_ARCH} --build=${SBUILD_HOST_ARCH} \
+        --starting-build-commands="runuser -u ${@os.getlogin()} -- sh -c \"${SBUILD_PREBUILD:-:}\"" \
+        --no-run-lintian --no-run-piuparts --no-run-autopkgtest \
+        --build-dir=${WORKDIR} ${WORKDIR}/${PPS}
 }
-- 
2.25.1