Ok, so it has been almost a week since I've posted about this, and I
have not gotten any more helpful responses. I really need some help on
this. The entirety of my yum plugin code is inline at the end of this
message.
My situation: my dellsysidplugin.py yum plugin code appears to
function perfectly well. I have had two reports, though, that it
conflicts with other plugins. The yum presto folks say that I am
initializing the repos too early, and I have a report that PUP will
crash in a very undignified manner when network connectivity is not
present due to my plugin initializing the repos at a spot where they are
not expecting to catch that sort of exception.
I need help, as I dont understand all of the yum internals. My
plugin is all of 60 lines long, and I can't see that I am doing anything
incorrectly. I am using the methods given to me by the conduit and I am
not abusing anything, as far as I can tell.
My one and only desire is to insert a new value in 'yumvars' before
it is used by any other code, eg. the URL processing code (so it can be
used in mirrorlist= and baseurl= substitutions). At the moment, there is
not a plugin hook that is called early enough, so pretty much everything
including and after "repos = conduit.getRepos()" is to work around this.
Yes, my plugin could be reduced to about 6 lines with the appropriate
hooks.
I really would like to resolve this, as I find it unpleasant to get
bug reports that say my code is breaking other people's stuff. I would
like to see this resolved before F7 release, if possible.
My best suggestion so far has been a new plugin hook that reuses the
init conduit, called 'yumvars', which is called immediately after
yumvars is set up. Seth had a quick suggestion about re-using config
plugin last week that didnt seem workable to me.
Any help would be appreciated.
Thanks,
Michael Brown
=======================================================================
import os
import sys
from biosHdr import getSystemId
from yum.plugins import TYPE_CORE
version="1.2.12.2_BETA"
requires_api_version = '2.1'
plugin_type = TYPE_CORE
def init_hook(conduit):
"""
Plugin initialization hook. Sets up system id variables.
Note: this should be compatible with any other vendor plugin that sets
these variables because we only ever set them on Dell systems.
"""
conf = conduit.getConf()
sysid=0
try:
sysid = getSystemId()
except:
pass
conf.yumvar["dellsysidpluginver"] = version
if sysid:
conf.yumvar["sys_ven_id"] = "0x1028" # hex
conf.yumvar["sys_dev_id"] = "0x%04x" % sysid
repos = conduit.getRepos()
for repo in repos.findRepos('*'):
repo.yumvar.update(conf.yumvar)
# re-process mirrorlist (it isnt varReplaced like baseUrl is)
for repo in repos.findRepos('*'):
try:
# yum 3.0+
if repo.mirrorlist:
for (key, value) in conf.yumvar.items():
repo.mirrorlist = repo.mirrorlist.replace("$%s" % key,
value)
except AttributeError:
pass
try:
# yum 2.4.3
if repo.mirrorlistfn:
for (key, value) in conf.yumvar.items():
repo.mirrorlistfn = repo.mirrorlistfn.replace("$%s" % key,
value)
except AttributeError:
pass
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