[PATCH v5 4/5] Use apt-key to generate apt-keyring

["Andreas J. Reichel" <andreas.reichel.ext@siemens.com>]

From: Andreas Reichel <andreas.reichel.ext@siemens.com>

Use apt-key instead of manually calling gpg.

Signed-off-by: Andreas Reichel <andreas.reichel.ext@siemens.com>
---
 meta/classes/isar-bootstrap-helper.bbclass    |  2 ++
 meta/conf/bitbake.conf                        |  1 +
 .../isar-bootstrap/isar-bootstrap.inc         | 30 ++++++++++++++-----
 3 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/meta/classes/isar-bootstrap-helper.bbclass b/meta/classes/isar-bootstrap-helper.bbclass
index 38d90fb..d80d941 100644
--- a/meta/classes/isar-bootstrap-helper.bbclass
+++ b/meta/classes/isar-bootstrap-helper.bbclass
@@ -117,6 +117,7 @@ setup_root_file_system() {
     export LANG=C
     export LANGUAGE=C
     export LC_ALL=C
+
     sudo -E chroot "$ROOTFSDIR" /usr/bin/apt-get update \
         -o Dir::Etc::sourcelist="sources.list.d/isar-apt.list" \
         -o Dir::Etc::sourceparts="-" \
@@ -126,6 +127,7 @@ setup_root_file_system() {
         sudo -E chroot "$ROOTFSDIR" /usr/bin/dpkg --add-architecture ${DISTRO_ARCH}
         sudo -E chroot "$ROOTFSDIR" /usr/bin/apt-get update
     fi
+    sudo -E chroot "$ROOTFSDIR" /usr/bin/apt-key update
     sudo -E chroot "$ROOTFSDIR" \
         /usr/bin/apt-get ${APT_ARGS} --download-only $PACKAGES \
             ${IMAGE_TRANSIENT_PACKAGES}
diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 0e521bb..769ec9a 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -62,6 +62,7 @@ DEBDISTRONAME = "isar"
 # Isar apt repository paths
 REPO_ISAR_DIR = "${DEPLOY_DIR}/isar-apt/apt"
 REPO_ISAR_DB_DIR = "${DEPLOY_DIR}/isar-apt/db"
+ISARKEYRING = "/etc/apt/trusted.gpg.d/isar.gpg"
 
 # Base apt repository paths
 REPO_BASE_DIR = "${DL_DIR}/base-apt/apt"
diff --git a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
index 1f8f178..f4d8a9b 100644
--- a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
+++ b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
@@ -23,10 +23,9 @@ APTSRCS = "${WORKDIR}/apt-sources"
 APTSRCS_INIT = "${WORKDIR}/apt-sources-init"
 BASEAPTSRCS = "${WORKDIR}/base-apt-sources"
 APTKEYFILES = ""
-APTKEYRING = "${WORKDIR}/apt-keyring.gpg"
-DEBOOTSTRAP_KEYRING = ""
 DEPLOY_ISAR_BOOTSTRAP ?= ""
 DISTRO_BOOTSTRAP_BASE_PACKAGES = "locales"
+DISTRO_BOOTSTRAP_BASE_PACKAGES_append_gnupg = ",gnupg2"
 
 DISTRO_APT_PREMIRRORS ?= "${@ "http://ftp\.(\S+\.)?debian.org  file:///${REPO_BASE_DIR} \n" if bb.utils.to_boolean(d.getVar('ISAR_USE_CACHED_BASE_REPO')) else "" }"
 
@@ -43,7 +42,6 @@ python () {
         if own_pub_key:
             aptkeys += own_pub_key.split()
 
-    d.setVar("DEBOOTSTRAP_KEYRING", "--keyring ${APTKEYRING}")
     for key in aptkeys:
         d.appendVar("SRC_URI", " %s" % key)
         fetcher = bb.fetch2.Fetch([key], d)
@@ -158,6 +156,14 @@ def get_distro_needs_https_support(d, is_host=False):
     else:
         return ""
 
+def get_distro_needs_gpg_support(d):
+    apt_keys = d.getVar("HAVE_CUSTOM_APT_KEYS", False)
+    if apt_keys:
+        return "gnupg"
+    return ""
+
+OVERRIDES_append = ":${@get_distro_needs_gpg_support(d)}"
+
 def get_distro_source(d, is_host):
     return get_distro_primary_source_entry(d, is_host)[0]
 
@@ -171,13 +177,17 @@ def get_distro_components_argument(d, is_host):
     else:
         return ""
 
+APT_KEYS_DIR := "${WORKDIR}/aptkeys"
+
+do_generate_keyring[cleandirs] = "${APT_KEYS_DIR}"
 do_generate_keyring[dirs] = "${DL_DIR}"
 do_generate_keyring[vardeps] += "DISTRO_APT_KEYS"
 do_generate_keyring() {
     if [ -n "${@d.getVar("APTKEYFILES", True) or ""}" ]; then
+        chmod 777 "${APT_KEYS_DIR}"
         for keyfile in ${@d.getVar("APTKEYFILES", True)}; do
-           gpg --no-default-keyring --keyring "${APTKEYRING}" \
-               --no-tty --homedir "${DL_DIR}"  --import "$keyfile"
+           cp "$keyfile" "${APT_KEYS_DIR}"/"$(basename "$keyfile")"
+           sudo apt-key --keyring "${ISARKEYRING}" add "$keyfile"
         done
     fi
 }
@@ -221,7 +231,6 @@ isar_bootstrap() {
             if [ ${IS_HOST} ]; then
                 ${DEBOOTSTRAP} $debootstrap_args \
                                ${@get_distro_components_argument(d, True)} \
-                               ${DEBOOTSTRAP_KEYRING} \
                                "${@get_distro_suite(d, True)}" \
                                "${ROOTFSDIR}" \
                                "${@get_distro_source(d, True)}"
@@ -230,7 +239,6 @@ isar_bootstrap() {
                  "${DEBOOTSTRAP}" $debootstrap_args \
                                   --arch="${DISTRO_ARCH}" \
                                   ${@get_distro_components_argument(d, False)} \
-                                  ${DEBOOTSTRAP_KEYRING} \
                                   "${@get_distro_suite(d, False)}" \
                                   "${ROOTFSDIR}" \
                                   "${@get_distro_source(d, False)}"
@@ -259,6 +267,14 @@ isar_bootstrap() {
             mkdir -p "${ROOTFSDIR}/etc/apt/apt.conf.d"
             install -v -m644 "${WORKDIR}/isar-apt.conf" \
                              "${ROOTFSDIR}/etc/apt/apt.conf.d/50isar.conf"
+            for keyfile in ${APT_KEYS_DIR}/*
+            do
+                kfn="$(basename $keyfile)"
+                cp $keyfile "${ROOTFSDIR}/tmp/$kfn"
+                sudo -E chroot "${ROOTFSDIR}" /usr/bin/apt-key \
+                   --keyring ${ISARKEYRING} add "/tmp/$kfn"
+                rm "${ROOTFSDIR}/tmp/$kfn"
+            done
 
             if [ "${@get_distro_suite(d, True)}" = "stretch" ] && [ "${@get_host_release().split('.')[0]}" -lt "4" ]; then
                 install -v -m644 "${WORKDIR}/isar-apt-fallback.conf" \
-- 
2.21.0