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path: root/doc/external-installation-planer-protocol.txt
AgeCommit message (Collapse)Author
2016-06-27eipp: rename stanza 'Install' to 'Unpack'David Kalnischkies
Freeing 'Install' for future use as an interface for "dpkg --install", which is currently not used by any existent planer, so the implementation of it itself will be delayed until then.
2016-06-27eipp: add Allow-Temporary-Remove-of-EssentialsDavid Kalnischkies
A rather special need option, but the internal planer supports this and we have a testcase for it & sometimes it is hit (as a bug through). The option itself mostly serves as a reminder for implementors that they should be careful with removes and especially temporary removes if they perform any.
2016-06-27eipp: implement Immediate-Configuration flagDavid Kalnischkies
APT has 3 modes: no immediate configuration, all packages are configured immediately and its default mode of configuring essentials and pseudo-essentials immediately only. While this seems like a job of different planers at first, it might be handy to have it as an option, too, in case a planer (like apts internal one) supports different modes where the introduction of individual planers would be counter intuitive.
2016-06-27eipp: implement version 0.1 of the protocolDavid Kalnischkies
The very first step in introducing the "external installation planer protocol" (short: EIPP) as part of my GSoC2016 project. The description reads: APT-based tools like apt-get, aptitude, synaptic, … work with the user to figure out how their system should look like after they are done installing/removing packages and their dependencies. The actual installation/removal of packages is done by dpkg with the constrain that dependencies must be fulfilled at any point in time (e.g. to run maintainer scripts). Historically APT has a super micro-management approach to this task which hasn't aged that well over the years mostly ignoring changes in dpkg and growing into an unmaintainable mess hardly anyone can debug and everyone fears to touch – especially as more and more requirements are tacked onto it like handling cycles and triggers, dealing with "important" packages first, package sources on removable media, touch minimal groups to be able to interrupt the process if needed (e.g. unattended-upgrades) which not only sky-rocket complexity but also can be mutually exclusive as you e.g. can't have minimal groups and minimal trigger executions at the same time.