[LEDE-DEV] Missing 40_luci-ddns in package luci-app-ddns

[Hannu Nyman]

On 27.5.2016 1:59, Carl-Daniel Hailfinger wrote:
> Error message during installation of luci-app-ddns:
>
> Installing luci-app-ddns (2.4.4-1) to root...
> Downloading
> http://downloads.lede-project.org/snapshots/packages/mips_34kc/luci/luci-app-ddns_2.4.4-1_all.ipk.
> Configuring luci-app-ddns.
> //usr/lib/opkg/info/luci-app-ddns.postinst: .: line 130: can't open
> './40_luci-ddns'

That sounds like the same error that I reported as 
https://github.com/openwrt/luci/issues/722

The error is likely caused as by the new routine to run uci-defaults also at 
the package installation time:

https://git.lede-project.org/?p=source.git;a=commitdiff;h=9b9c78e071469313566473984fb79f54c1881c10;hp=f6adbdf3cdb8ce0d5a730575cab797ced956a59e
https://dev.openwrt.org/changeset/49340

The new routine evaluates the existence of an uci-defaults script from the 
package manifest, not from the actual contents of the /etc/uci-defaults 
directory.

My guess is that the postinst routines defined in the Luci toplevel makefile 
(e.g. in https://github.com/openwrt/luci/blob/master/luci.mk#L180 ) run first 
and remove the uci-defaults script, and then this new routine tries to run 
the script, but does not find it as it is already deleted by postinst-pkg.

The error is likely harmless, but still annyoing.

This error has now been reported for luci-app-statistics, 
luci-theme-bootstrap and luci-app-ddns. So I guess that this concerns all 
Luci apps. The same error may also pop up for other apps that have similar 
package-specific postinst routines to that run uci-defaults.