.. _brainstorming:

Brainbox
========

This is just a page to collect brainwaves/ideas/evil-thoughts for Copr. 

Proposal of change
------------------
* open copr-dist-git for user-interaction
* do not store built srpm there anymore, instead build them on builders based on db data (git/svn hashes, gem/pip package versions)
* potentially use copr-cli for building on builders by employing (--local --detached) switches **

** actually scratch the last point. What we need is a builder script that gets just task_id as input and downloads the build definition
from frontend and based on that executes the whole build. The current copr-builder fixes some parts of build definition (most importantly
the dist-git source args) on its command line which makes future changes like in point 2 basically a no-go. We need to keep our options
open in this regard.

Frontend
--------

* make link to /api page (Done)
* Extend APIs
* localize frontend (use Transifex)
* Meet Docstring standards for the code.
* Allow a repo author to optionally provide a url to the upstream source repo (visible to viewers)
* Allow a repo author to optionally provide a url to the spec file (visible to viewers)

Backend
-------

* change instance type by build request for more mem/procs/extend timeouts
   - use extra-vars?
   - need ansible 0.9?
* auto-timer/cleanup script for old instances that may have been orphaned
* prune out builders when we drop the number of them active
* LOADS of fixme and catching weird conditions
* make logging from mockremote more sane and consistent
* mock configs should be pushed to instances at creation time
   - single url to repos, not mirrorlists
* consider making each worker return job to a completed queue so the primary
  process can do other kinds of notification
* email notifications from backend?
* work on a way to find and cancel a specific build that's happening other than just killing the instance
* determine if it is properly checking the timeout from a dead instance
* maybe dump out the PID of the worker that is running so we know which one to kill?

Done
^^^^
* have jobs as static records in redis, drop workers for each build and only have process checking build status and downloading results in the end
    - advantage is that you don't lose the already done work on builds that were running when copr-be is restarted (which happens on upgrades or a component failure)
    - disadvantage is that it includes quite some changes: keeping and maintaining jobs and their states + process with infinite loop that checkes status of the running jobs
    - you also need to run the mockchain job on background with stdin and stoud disattached so that it does not halt on SIGHUP
    - includes implementation of a nice way to check whether build is finished or not (e.g. check running processes for mockbuilder user could be ok)
    - looks like all of this requires some `copr-builder` script to be run on builder?  Then `copr-builder` and `copr-backend` can have pre-defined API
        - $ copr-builder --config /some/config.conf build <coprID>/<package> --chroot <chroot>
        - the config.conf identifies where 'dist-git' and 'frontend' can be found to do `git clone PKG` and `copr-cli mock-config`
        - outputs could look like /copr-builder/live-log (stdout + stderr), /copr-builder/results/, /copr-builder/build.running (status)

  - clime: it can be done without `copr-builder` script ;)

* alternative to the prev approach:
  - run the builds remotely in background or in a terminal multiplexer
  - try to reconnect based on builder records on copr-be restart (involves setting up a new worker)

Command line interface
----------------------

* integrate with fedpkg

Other
-----

* Create CoprReleaser for `Tito <https://github.com/dgoodwin/tito>`_ (Done)
* provide .repo file (not sure if backend or frontend). (Done)
* Logo. We desperately :) need logo. I was thinking about simplified picture of [http://en.wikipedia.org/wiki/Dill Dill] which is pronaunced in Czech (my native language) exactly same as Copr.