* Ian Jackson <[email protected]>, 2013-11-28, 13:56:
I suggest the following test instead:
1) DEBIAN_FRONTEND=noninteractive apt-get install $package
2) rm -rf /var/cache/debconf
3) DEBIAN_PRIORITY=low apt-get install --reinstall $package
If any questions are asked in point 3, the package uses debconf as registry.
Funnily enough, debconf itself fails this test.
I don't think this is right. Questions might be asked to know not what to
write into some config file, but to determine directly whether the maintainer
script should take some action right now (eg, restarting a daemon or not).
Indeed, it's a possible source of false positives. I don't think it'd be a big
problem in practice, but it can be easily mitigated:
1) DEBIAN_FRONTEND=noninteractive apt-get install $package
2) DEBIAN_PRIORITY=low apt-get install --reinstall $package
3) rm -rf /var/cache/debconf
4) DEBIAN_PRIORITY=low apt-get install --reinstall $package
If any questions are asked in point 4 that weren't asked in point 2, something
is fishy.
--
Jakub Wilk
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