Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/meta/recipes-core/volatile-binds/volatile-binds.bb b/meta/recipes-core/volatile-binds/volatile-binds.bb
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+++ b/meta/recipes-core/volatile-binds/volatile-binds.bb
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+SUMMARY = "Volatile bind mount setup and configuration for read-only-rootfs"
+DESCRIPTION = "${SUMMARY}"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://COPYING.MIT;md5=5750f3aa4ea2b00c2bf21b2b2a7b714d"
+
+SRC_URI = "\
+ file://mount-copybind \
+ file://COPYING.MIT \
+ file://volatile-binds.service.in \
+"
+
+S = "${WORKDIR}"
+
+inherit allarch systemd distro_features_check
+
+REQUIRED_DISTRO_FEATURES = "systemd"
+
+VOLATILE_BINDS ?= "\
+ /var/volatile/lib /var/lib\n\
+"
+VOLATILE_BINDS[type] = "list"
+VOLATILE_BINDS[separator] = "\n"
+
+def volatile_systemd_services(d):
+ services = []
+ for line in oe.data.typed_value("VOLATILE_BINDS", d):
+ if not line:
+ continue
+ what, where = line.split(None, 1)
+ services.append("%s.service" % what[1:].replace("/", "-"))
+ return " ".join(services)
+
+SYSTEMD_SERVICE_${PN} = "${@volatile_systemd_services(d)}"
+
+FILES_${PN} += "${systemd_unitdir}/system/*.service"
+
+do_compile () {
+ while read spec mountpoint; do
+ if [ -z "$spec" ]; then
+ continue
+ fi
+
+ servicefile="${spec#/}"
+ servicefile="$(echo "$servicefile" | tr / -).service"
+ sed -e "s#@what@#$spec#g; s#@where@#$mountpoint#g" \
+ -e "s#@whatparent@#${spec%/*}#g; s#@whereparent@#${mountpoint%/*}#g" \
+ volatile-binds.service.in >$servicefile
+ done <<END
+${@d.getVar('VOLATILE_BINDS', True).replace("\\n", "\n")}
+END
+
+ if [ -e var-volatile-lib.service ]; then
+ # As the seed is stored under /var/lib, ensure that this service runs
+ # after the volatile /var/lib is mounted.
+ sed -i -e "/^Before=/s/\$/ systemd-random-seed.service/" \
+ -e "/^WantedBy=/s/\$/ systemd-random-seed.service/" \
+ var-volatile-lib.service
+ fi
+}
+do_compile[dirs] = "${WORKDIR}"
+
+do_install () {
+ install -d ${D}${base_sbindir}
+ install -m 0755 mount-copybind ${D}${base_sbindir}/
+
+ install -d ${D}${systemd_unitdir}/system
+ for service in ${SYSTEMD_SERVICE_volatile-binds}; do
+ install -m 0644 $service ${D}${systemd_unitdir}/system/
+ done
+}
+do_install[dirs] = "${WORKDIR}"