[wpkg-users] Strict depend/chain checks or conflicts on 1.3.1?
r.meier at wpkg.org
Thu Jun 19 16:36:37 CEST 2014
On 19.06.2014 14:58, Marco Gaiarin wrote:
> And i've just upgraded from 18.104.22.168 to 22.214.171.124. WPKG exit with an
> error, AFAI've understood because there's a bad interaction between
> 'chain' and 'depend'.
> What i'm missing? Thanks.
It looks like you're facing a very special case of cyclic redundancy du to
cyclic usage of dependency and chain.
WPKG will in your case obviously first apply the libreoffice-help-it package
which is very likely directly assigned in profile.
During the installation of libreoffice-help-it WPKG discovers the dependency and
will add the libreoffice-help-it package to internal "already processed" list in
order to avoid cyclic includes. Then WPKG proceeds with installation of
libreoffice package. During the course of installation of the libreoffice
package it will of course descend into the jre dependency and install this one.
After jre installation it returns to libreoffice commands and installs it
Moreover WPKG will proceed during libreoffice installation with the chained
package libreoffice-help-it. And here the thing which you likely didn't
understand happens. WPKG internally detects that libreoffice-help-it has already
been processed during this session (well, actually it's in the middle of it but
WPKG would enter vicious circle now entering installation of libreoffice-help-it
again). So WPKG detects that libreoffice-help-it is already processed and
obviously not properly processed since still old version is installed. Then it
presents an error about failed chain installation.
Since 'chain' is not a hard dependency WPKG will still report successful
installation of libreoffice package since all checks succeed correctly.
Now you need to remember that the libreoffice installation did happen actually
as a sub-processing of libreoffice-help-it package (its dependency). So WPKG
continues with installation of libreoffice-help-it now which can proceed as
normal since all dependencies (including libreoffice-help-it) installed properly.
Note that in your log on line 1318 it correctly proceeds with installation of
libreoffice-help-it install commands and even correctly succeeds.
The result at the end is a completely updated system including libreoffice and
libreoffice-help-it packages. Even though an error is reported due to internal
In order to fix this you should either remove the chain or dependency from your
My recommendation would be to remove the chain instruction from libreoffice
package and keep the dependency. This way you can simply assign the
language-specific package (libreoffice-help-it) to the profile and it will pull
libreoffice into the package tree automatically. Also this preserves hard
dependency of the language pack to the core libreoffice package and will fail
it's installation in case the core libreoffice package is not applied properly.
So finally it's a bit tricky to analyze but I don't think there is anything
wrong in the way WPKG processes the packages as it is strictly needed by WPKG to
ignore the 'chain' in this case in order not to enter cyclic dependency
processing. Moreover the packages should have been applied 100% correctly even
with the error reported. So the algorithm applied by WPKG did sort it out properly.
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