2010-08-28 09:37:39 -07:00
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from operator import attrgetter
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2011-10-11 17:29:15 -07:00
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from main.models import Arch, Package
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2011-06-29 10:05:07 -07:00
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from main.utils import cache_function, groupby_preserve_order, PackageStandin
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2010-02-04 18:44:46 -08:00
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2011-03-30 23:48:19 -07:00
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class RecentUpdate(object):
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def __init__(self, packages):
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if len(packages) == 0:
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raise Exception
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first = packages[0]
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self.pkgbase = first.pkgbase
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self.repo = first.repo
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self.version = ''
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packages = sorted(packages, key=attrgetter('arch', 'pkgname'))
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# split the packages into two lists. we need to prefer packages
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# matching pkgbase as our primary, and group everything else in other.
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self.packages = [pkg for pkg in packages if pkg.pkgname == pkg.pkgbase]
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self.others = [pkg for pkg in packages if pkg.pkgname != pkg.pkgbase]
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if self.packages:
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version = self.packages[0].full_version
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if all(version == pkg.full_version for pkg in self.packages):
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self.version = version
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elif self.others:
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version = self.others[0].full_version
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if all(version == pkg.full_version for pkg in self.others):
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self.version = version
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def package_links(self):
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'''Returns either actual packages or package-standins for virtual
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pkgbase packages.'''
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if self.packages:
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# we have real packages- just yield each in sequence
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for package in self.packages:
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yield package
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else:
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2011-06-29 10:05:07 -07:00
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# fake out the template- this is slightly hacky but yields one
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# 'package-like' object per arch which is what the normal loop does
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arches = set()
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for package in self.others:
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if package.arch not in arches and not arches.add(package.arch):
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yield PackageStandin(package)
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2011-03-30 23:48:19 -07:00
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2010-06-20 22:51:39 -07:00
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@cache_function(300)
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2011-03-13 10:03:37 -07:00
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def get_recent_updates(number=15):
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2010-02-04 18:44:46 -08:00
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# This is a bit of magic. We are going to show 15 on the front page, but we
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# want to try and eliminate cross-architecture wasted space. Pull enough
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# packages that we can later do some screening and trim out the fat.
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pkgs = []
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2011-03-13 10:03:37 -07:00
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# grab a few extra so we can hopefully catch everything we need
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2011-03-30 23:48:19 -07:00
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fetch = number * 6
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2010-08-28 09:37:39 -07:00
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for arch in Arch.objects.all():
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2011-06-15 13:50:14 -07:00
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pkgs += list(Package.objects.normal().filter(
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arch=arch).order_by('-last_update')[:fetch])
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2011-06-29 10:05:07 -07:00
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pkgs.sort(key=attrgetter('last_update'), reverse=True)
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2011-03-30 23:48:19 -07:00
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2011-06-29 10:05:07 -07:00
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same_pkgbase_key = lambda x: (x.repo.name, x.pkgbase)
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grouped = groupby_preserve_order(pkgs, same_pkgbase_key)
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2011-03-30 23:48:19 -07:00
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2011-06-29 10:05:07 -07:00
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updates = []
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for group in grouped:
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update = RecentUpdate(group)
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2011-03-30 23:48:19 -07:00
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updates.append(update)
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return updates[:number]
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2010-02-04 18:44:46 -08:00
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# vim: set ts=4 sw=4 et:
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