[v8 06/14] meta: Add cache-deb-src functionality in base-apt mode

[Aliaksei Karpovich <akarpovich@ilbers.de>]

From: Uladzimir Bely <ubely@ilbers.de>

Fill base-apt repo with source packages.

Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
Signed-off-by: Aliaksei Karpovich <akarpovich@ilbers.de>
---
 meta/classes-recipe/deb-dl-dir.bbclass | 45 ++++++++++++++++++++++++++
 meta/classes-recipe/rootfs.bbclass     |  7 ++++
 2 files changed, 52 insertions(+)

diff --git a/meta/classes-recipe/deb-dl-dir.bbclass b/meta/classes-recipe/deb-dl-dir.bbclass
index 60e2fecc..39c77151 100644
--- a/meta/classes-recipe/deb-dl-dir.bbclass
+++ b/meta/classes-recipe/deb-dl-dir.bbclass
@@ -27,6 +27,51 @@ debsrc_source_version_filter() {
     | sort -u
 }
 
+debsrc_fill_base_apt() {
+    export rootfs="$1"
+    export rootfs_distro="$2"
+    mkdir -p "${DEBSRCDIR}"/"${rootfs_distro}"
+
+    debsrc_do_mounts "${rootfs}"
+
+    trap 'exit 1' INT HUP QUIT TERM ALRM USR1
+    trap 'debsrc_undo_mounts "${rootfs}"' EXIT
+
+    ( flock 9
+    set -e
+    printenv | grep -q BB_VERBOSE_LOGS && set -x
+
+    # We need temporary files for our lists of source packages
+    # trap exit of this sub-shell to remove them (this script may exit abruptly
+    # since "set -e" is used)
+    avail=$(mktemp)
+    wanted=$(mktemp)
+    trap "rm -f ${avail} ${wanted}" EXIT
+
+    # List all packages known to apt
+    run_privileged chroot --userspec=$( id -u ):$( id -g ) ${rootfs} \
+        apt-cache dumpavail \
+        | debsrc_source_version_filter > ${avail}
+
+    # Use apt-ftparchive to scan all .deb files found in the download directory
+    # and get the <source> <version> pairs that we wish to download
+    apt-ftparchive --md5=no --sha1=no --sha256=no --sha512=no \
+                   -a "${DISTRO_ARCH}" packages \
+                   "${REPO_BASE_DIR}" \
+    | debsrc_source_version_filter > ${wanted}
+
+    # We now have two sorted lists: source packages we want and those known to
+    # apt. We will only consider source packages that may be found in both.
+    comm -12 ${wanted} ${avail} \
+    | while read src version; do
+        debrepo_add_packages --srcmode "${DEBREPO_TARGET_DIR}" "${src}=${version}"
+    done
+
+    ) 9>"${DEBSRCDIR}/${rootfs_distro}.lock"
+
+    debsrc_undo_mounts "${rootfs}"
+}
+
 debsrc_download() {
     export rootfs="$1"
     export rootfs_distro="$2"
diff --git a/meta/classes-recipe/rootfs.bbclass b/meta/classes-recipe/rootfs.bbclass
index 3ca46bb6..5a66b4ca 100644
--- a/meta/classes-recipe/rootfs.bbclass
+++ b/meta/classes-recipe/rootfs.bbclass
@@ -495,6 +495,13 @@ do_cache_deb_src() {
     run_privileged tar -xf "${BOOTSTRAP_SRC}" ./var/lib/apt/lists --one-top-level="${ROOTFSDIR}"
 
     deb_dl_dir_import ${ROOTFSDIR} ${ROOTFS_BASE_DISTRO}-${BASE_DISTRO_CODENAME}
+
+    debsrc_fill_base_apt ${ROOTFSDIR} ${ROOTFS_BASE_DISTRO}-${BASE_DISTRO_CODENAME}
+
+    rootfs_do_mounts
+    debrepo_update_apt_source_list "${ROOTFSDIR}" "base-apt"
+    rootfs_do_umounts
+
     debsrc_download ${ROOTFSDIR} ${ROOTFS_BASE_DISTRO}-${BASE_DISTRO_CODENAME}
 
     run_privileged rm -f "${ROOTFSDIR}"/etc/resolv.conf
-- 
2.43.0

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