Hi,
it had been pointed out that there would be no way for apt-listbugs to
know whether apt-get had been given a -q/--quiet option, to produce
loggable output only, i.e., without frequently updated progress
indicators. This seems to be mistaken.
Confer apt-get(8):
| -q, --quiet
| Quiet; produces output suitable for logging, omitting progress
| indicators. [...] Configuration Item: quiet.
And this (the configuration item) seems to be where, e.g.,
apt-listchanges gets this information from.
Code snippet from /usr/bin/apt-listchanges:
| def main():
[...]
|
| if config.apt_mode:
| debs = apt_listchanges.read_apt_pipeline(config)
|
[...]
|
| # If apt is in quiet (loggable) mode, we should make our output
| # loggable too
| if config.quiet == 1:
| config.frontend = 'text'
| elif config.quiet >= 2:
| config.frontend = 'mail'
Code snippet from /usr/share/apt-listchanges/apt_listchanges.py:
| def read_apt_pipeline(config):
| version = sys.stdin.readline().rstrip()
| if version != "VERSION 2":
| sys.stderr.write(_('''Wrong or missing VERSION from apt pipeline
| (is Dpkg::Tools::Options::/usr/bin/apt-listchanges::Version set to 2?)
| '''))
| sys.exit(1)
|
| while 1:
| line = sys.stdin.readline().rstrip()
| if not line:
| break
|
| if line.startswith('quiet='):
| config.quiet = int(line[len('quiet='):])
Confer apt.conf(5):
| Pre-Install-Pkgs
| This is a list of shell commands to run before invoking dpkg. Like
| options this must be specified in list notation. The commands are
| invoked in order using /bin/sh, should any fail APT will abort. APT
| will pass to the commands on standard input the filenames of all .deb
| files it is going to install, one per line.
|
| Version 2 of this protocol dumps more information, including the
| protocol version, the APT configuration space and the packages, files
| and versions being changed. Version 2 is enabled by setting
| DPkg::Tools::options::cmd::Version to 2. cmd is a command given to
| Pre-Install-Pkgs.
And indeed this is set in /etc/apt/apt.conf.d/20listchanges:
| DPkg::Pre-Install-Pkgs { "/usr/bin/apt-listchanges --apt || test $? -ne 10";
};
| DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";
So it would seem quite possible now to integrate --quiet awareness into
apt-listbugs, too.
Regards, Fabian
--
Fabian "zzz" Pietsch - http://zzz.arara.de/
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