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olsrd: nameservice: add postinst-hook, to upgrade plugin

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olsrd-0.9.6 will come with an new versionnumber for the nameservice-plugin,
as of new parameter "filewrite_interval".
This commit installs a postinst-hook for mod-nameservice to update the
UCI-option library to the new value.

As this new plugin-parameter is compatible with the current behaviour, no
additional change to the current config is required.

At compile-time the value of $PLUGIN_CURRENT_VERSION in postinst is defined
from filename of plugin

Signed-off-by: Sven Roederer <freifunk@it-solutions.geroedel.de>
This commit is contained in:
Sven Roederer 2017-01-15 22:59:37 +01:00
parent 9bf02258d9
commit caf1a1006c
1 changed files with 48 additions and 0 deletions
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48
olsrd/Makefile
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@ -179,6 +179,54 @@ define Build/Compile
$(call Build/Compile/Default,libs)
endef
define Package/olsrd-mod-nameservice/postinst
#!/bin/sh
. "$${IPKG_INSTROOT}/lib/functions.sh"
# gets lookup up on compiletime and path is stripped-off
PLUGIN_CURRENT_VERSION=$(subst $(PKG_BUILD_DIR)/lib/nameservice/olsrd_nameservice.so.,,$(wildcard $(PKG_BUILD_DIR)/lib/nameservice/olsrd_nameservice.so.*))
upgrade_plugin_options() {
local cfg=$$1
local version
local value
config_get value $$cfg library
if [ $${value:0:20} = olsrd_nameservice.so ]; then
#echo found nameservice
if [ $${value} = olsrd_nameservice.so.$${PLUGIN_CURRENT_VERSION} ]; then
#echo section up-to-date
return 0
fi
version=$${value/olsrd_nameservice.so./} # strip-off the library-name
major=$$(echo $$version | cut -d . -f 1)
minor=$$(echo $$version | cut -d . -f 2)
configured_ver=$$((major * 1000 + $$minor))
plugin_current_version_major=$$(echo $$PLUGIN_CURRENT_VERSION | cut -d . -f 1)
plugin_current_version_minor=$$(echo $$PLUGIN_CURRENT_VERSION | cut -d . -f 2)
current_ver=$$((plugin_current_version_major *1000 + $$plugin_current_version_minor))
if [ $${current_ver} -lt $${configured_ver} ]; then
echo "downgrade of olsrd-mod-nameservice detected, please check your configuration"
logger "downgrade of olsrd-mod-nameservice detected, please check your configuration"
return 0
fi
echo "upgrading config ($$UCI_CONF_NAME) of nameservice-plugin to version $$PLUGIN_CURRENT_VERSION"
uci_set $$UCI_CONF_NAME "$$cfg" library "olsrd_nameservice.so.$${PLUGIN_CURRENT_VERSION}"
echo "... done"
fi
}
for uciconfig in olsrd olsrd6; do
. "$${IPKG_INSTROOT}/etc/init.d/$$uciconfig" # get UCI_CONF_NAME variable
config_load $$UCI_CONF_NAME
config_foreach upgrade_plugin_options LoadPlugin
uci_commit $$UCI_CONF_NAME
done
exit 0
endef
define Package/olsrd/install
$(INSTALL_DIR) $(1)/lib/functions
$(INSTALL_DATA) ./files/olsrd.init $(1)/lib/functions/olsrd.sh