321 lines
9.6 KiB
Python
321 lines
9.6 KiB
Python
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import subprocess
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import portage
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import sys
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import os
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import re
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from django.db.transaction import commit_on_success
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from django.core.management.color import color_style
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from djeuscan.models import Package, Version, VersionLog
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class ScanPortage(object):
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def __init__(self, stdout=None, no_log=False, purge_packages=False,
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purge_versions=False, kill_versions=False, quiet=False):
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self.stdout = sys.stdout if stdout is None else stdout
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self.no_log = no_log
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self.purge_packages = purge_packages
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self.purge_versions = purge_versions
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self.kill_versions = kill_versions
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self.quiet = quiet
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self.style = color_style()
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self._cache = {'packages': {}, 'versions': {}}
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self._overlays = None
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def cache_hash_package(self, category, name):
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return '%s/%s' % (category, name)
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def cache_store_package(self, package):
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key = self.cache_hash_package(package.category, package.name)
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self._cache['packages'][key] = package
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def cache_get_package(self, category, name):
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return self._cache['packages'].get(
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self.cache_hash_package(category, name)
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)
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def cache_hash_version(self, category, name, version, revision, slot,
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overlay):
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key = '%s/%s-%s-r%s %s %s' % (category, name,
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version, revision,
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slot, overlay)
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return key
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def cache_get_version(self, category, name, version, revision, slot,
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overlay):
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key = self.cache_hash_version(category, name, version, revision, slot,
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overlay)
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return self._cache['versions'].get(key)
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def cache_store_version(self, version):
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key = self.cache_hash_version(
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version.package.category, version.package.name, version.version,
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version.revision, version.slot, version.overlay
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)
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self._cache['versions'][key] = version
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def overlays(self):
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if self._overlays:
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return self._overlays
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env = os.environ
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env['OVERLAYS_LIST'] = 'all'
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env['PRINT_COUNT_ALWAYS'] = 'never'
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cmd = ['eix', '-!']
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output = subprocess.Popen(cmd, stdout=subprocess.PIPE, env=env).\
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communicate()[0]
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output = output.strip().strip('\n').split('\n')
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overlay_re = re.compile(r'^\[(?P<key>\d+)] "(?P<name>.*?)"')
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self._overlays = {}
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for line in output:
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match = overlay_re.match(line)
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if not match:
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continue
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self._overlays[match.group('key')] = match.group('name')
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return self._overlays
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@commit_on_success
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def scan(self, query=None):
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env = os.environ
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env['MY'] = "<category>/<name>-<version>:<slot> [<overlaynum>]\n"
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cmd = ['eix', '--format', '<availableversions:MY>', '--pure-packages',
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'-x']
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if query:
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cmd.extend(['--exact', query])
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if self.kill_versions:
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if not self.quiet:
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self.stdout.write('Killing existing versions...')
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self.stdout.flush()
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Version.objects.filter(packaged=True).update(alive=False)
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if not self.quiet:
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self.stdout.write('done\n')
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output = subprocess.Popen(cmd, stdout=subprocess.PIPE, env=env).\
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communicate()[0]
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output = output.strip().strip('\n')
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if len(output) == 0:
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if not query:
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return
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if self.purge_packages:
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if not self.quiet:
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sys.stdout.write('- [p] %s\n' % (query))
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if '/' in query:
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cat, pkg = portage.catsplit(query)
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Package.objects.filter(category=cat, name=pkg).delete()
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else:
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Package.objects.filter(name=query).delete()
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else:
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sys.stderr.write(
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self.style.ERROR(
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"Unknown package '%s'\n" % query
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)
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)
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return
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output = output.split('\n')
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packages = {}
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line_re = re.compile(
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r'^(?P<cpv>.*?):(?P<slot>.*?) \[(?P<overlay>.*?)\]$'
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)
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package = None
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for line in output:
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match = line_re.match(line)
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if not match:
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continue
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cpv = match.group('cpv')
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slot = match.group('slot')
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overlay = match.group('overlay')
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cat, pkg, ver, rev = portage.catpkgsplit(cpv)
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packages['%s/%s' % (cat, pkg)] = True
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if not package or not \
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(cat == package.category and pkg == package.name):
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package = self.store_package(cat, pkg)
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self.store_version(package, cpv, slot, overlay)
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if self.purge_packages and not query:
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for package in Package.objects.all():
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cp = "%s/%s" % (package.category, package.name)
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if cp not in packages:
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if not self.quiet:
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sys.stdout.write('- [p] %s\n' % (package))
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package.delete()
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def store_package(self, cat, pkg):
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created = False
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obj = self.cache_get_package(cat, pkg)
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if not obj:
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obj, created = Package.objects.get_or_create(
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category=cat,
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name=pkg
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)
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self.cache_store_package(obj)
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if created:
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if not self.quiet:
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sys.stdout.write('+ [p] %s/%s\n' % (cat, pkg))
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# Set all versions dead, then set found versions alive and
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# delete old versions
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if not self.kill_versions:
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Version.objects.filter(
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package=obj,
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packaged=True
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).update(alive=False)
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return obj
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def store_version(self, package, cpv, slot, overlay):
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cat, pkg, ver, rev = portage.catpkgsplit(cpv)
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overlays = self.overlays()
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if overlay in overlays:
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overlay = overlays[overlay]
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else:
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overlay = 'gentoo'
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created = False
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obj = self.cache_get_version(
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package.category, package.name, ver, rev, slot, overlay
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)
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if not obj:
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obj, created = Version.objects.get_or_create(
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package=package, slot=slot,
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revision=rev, version=ver,
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overlay=overlay,
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defaults={"alive": True, "packaged": True}
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)
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if not created: # Created objects have defaults values
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obj.alive = True
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obj.packaged = True
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obj.save()
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if created:
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self.cache_store_version(obj)
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# nothing to do (note: it can't be an upstream version because
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# overlay can't be empty here)
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if not created:
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return
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if not self.quiet:
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sys.stdout.write('+ [v] %s \n' % (obj))
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if overlay == 'gentoo':
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package.n_packaged += 1
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else:
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package.n_overlay += 1
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package.n_versions += 1
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package.save()
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if self.no_log:
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return
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VersionLog.objects.create(
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package=obj.package,
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action=VersionLog.VERSION_ADDED,
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slot=obj.slot,
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revision=obj.revision,
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version=obj.version,
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overlay=obj.overlay
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)
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@commit_on_success
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def purge_versions(quiet=False, nolog=False):
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# For each dead versions
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for version in Version.objects.filter(packaged=True, alive=False):
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if version.overlay == 'gentoo':
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version.package.n_packaged -= 1
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else:
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version.package.n_overlay -= 1
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version.package.n_versions -= 1
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version.package.save()
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if not quiet:
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sys.stdout.write('- [v] %s\n' % (version))
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if nolog:
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continue
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VersionLog.objects.create(
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package=version.package,
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action=VersionLog.VERSION_REMOVED,
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slot=version.slot,
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revision=version.revision,
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version=version.version,
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overlay=version.overlay
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)
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Version.objects.filter(packaged=True, alive=False).delete()
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def scan_portage(packages=None, no_log=False, purge_packages=False,
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purge_versions=False, prefetch=False, logger=None,
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quiet=False, stdout=None):
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stdout = sys.stdout if stdout is None else stdout
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kill_versions = False
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if packages is None:
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prefetch = True
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kill_versions = True
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scan_handler = ScanPortage(
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stdout=stdout,
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no_log=no_log,
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purge_packages=purge_packages,
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purge_versions=purge_versions,
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kill_versions=kill_versions,
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quiet=quiet,
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)
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if not quiet:
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stdout.write('Scanning portage tree...\n')
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if prefetch:
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if quiet:
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stdout.write('Prefetching objects...')
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stdout.flush()
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for package in Package.objects.all():
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scan_handler.cache_store_package(package)
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for version in Version.objects.select_related('package').all():
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scan_handler.cache_store_version(version)
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if quiet:
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stdout.write('done\n')
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if packages is None:
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scan_handler.scan()
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else:
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for pkg in packages:
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if isinstance(pkg, Package):
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scan_handler.scan('%s/%s' % (pkg.category, pkg.name), pkg)
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else:
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scan_handler.scan(pkg)
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if purge_versions:
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purge_versions(quiet, no_log)
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if not quiet:
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stdout.write('Done.\n')
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