If the apt options
APT::Status-Fd is set, apt will send status
reports to that fd. The status information is separated with a ‘
there are the following status conditions:
The reason for using a fd instead of an OpProgress class is that many apt front-end fork a (vte) terminal for the actual installation.
The reason to do the mapping and l10n of the dpkg states to human readable (and translatable) strings is that this way the translation needs to be done only once for all front-ends.
Status of the package manager (dpkg). This is send when packages are installed/removed. pmstatus:pkgname:TotalPercentage:action-description
# ./apt-get install -o APT::Status-Fd=2 3dchess >/dev/null pmstatus:3dchess:20:Preparing 3dchess pmstatus:3dchess:40:Unpacking 3dchess pmstatus:3dchess:60:Preparing to configure 3dchess pmstatus:3dchess:80:Configuring 3dchess pmstatus:3dchess:100:Installed 3dchess
pmerror: /var/cache/apt/archives/krecipes_0.8.1-0ubuntu1_i386.deb : 75% : trying to overwrite `/usr/share/doc/kde/HTML/en/krecipes/krectip.png', which is also in package krecipes-data
pmconffile:conffile:percent:'current-conffile' 'new-conffile' useredited distedited
media-change: Ubuntu 5.10 _Breezy Badger_ - Alpha i386 (20050830):/cdrom/:Please insert the disc labeled: 'Ubuntu 5.10 _Breezy Badger_ - Alpha i386 (20050830)' in the drive '/cdrom/' and press enter.
dlstatus:1:9.05654:Downloading file 1 of 3 (4m40s remaining) dlstatus:1:9.46357:Downloading file 1 of 3 (4m39s remaining) dlstatus:1:9.61022:Downloading file 1 of 3 (4m38s remaining)