[PATCH 1/1] add apt options to mmdebstrap

["'Felix Moessbauer' via isar-users" <isar-users@googlegroups.com>]

In contrast to deboostrap, mmdebstrap supports apt options. By that, we
finally can inject the config needed to have reliable builds against the
debian snapshot mirrors.

Technically we need the options in two different formats, hence use a
function to generate them accordingly.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
---
 .../isar-mmdebstrap/isar-mmdebstrap.inc         | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc b/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
index 1043f2d1..97ee4431 100644
--- a/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
+++ b/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
@@ -24,6 +24,19 @@ MMHOOKS:debian-buster ?= "${DPKG_HOOKS}"
 
 DISTRO_BOOTSTRAP_KEYRING = "${WORKDIR}/distro-keyring.gpg"
 
+def get_apt_opts(d, param):
+    opts = []
+    retries = d.getVar('ISAR_APT_RETRIES') or "3"
+    opts.append(f'Acquire::Retries="{retries}"')
+    max_delay = d.getVar('ISAR_APT_DELAY_MAX')
+    if max_delay:
+        opts.append(f'Acquire::Retries::Delay::Maximum="{max_delay}"')
+    dl_limit = d.getVar('ISAR_APT_DL_LIMIT')
+    if dl_limit:
+        opts.append(f'Acquire::http::Dl-Limit="{dl_limit}"')
+        opts.append(f'Acquire::https::Dl-Limit="{dl_limit}"')
+    return ' '.join([f'{param} {o}' for o in opts])
+
 do_generate_keyrings[cleandirs] = "${WORKDIR}/trusted.gpg.d"
 do_generate_keyrings[dirs] = "${DEBDIR}"
 do_generate_keyrings[vardeps] += "DISTRO_BOOTSTRAP_KEYS THIRD_PARTY_APT_KEYS"
@@ -126,7 +139,8 @@ do_bootstrap() {
                                  -o Dir::State="$1/var/lib/apt" \
                                  -o Dir::Etc="$1/etc/apt" \
                                  -o Dir::Cache="$1/var/cache/apt" \
-                                 -o Apt::Architecture="${BOOTSTRAP_DISTRO_ARCH}"'
+                                 -o Apt::Architecture="${BOOTSTRAP_DISTRO_ARCH}" \
+                                 ${@get_apt_opts(d, '-o')}'
         extra_essential="$extra_essential && $syncout"
         extra_customize="$syncout"
     fi
@@ -173,6 +187,7 @@ do_bootstrap() {
                    --customize-hook='chroot "$1" /usr/bin/apt-get -y clean' \
                    --skip=cleanup/apt \
                    --skip=download/empty \
+                   ${@get_apt_opts(d, '--aptopt')} \
                    ${@get_distro_components_argument(d)} \
                    "${@get_distro_suite(d)}" \
                    "${WORKDIR}/rootfs.tar.zst" \
-- 
2.39.5

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