344 lines
10 KiB
Python
344 lines
10 KiB
Python
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 optparse import make_option
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from django.db.transaction import commit_on_success
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from django.core.management.base import BaseCommand
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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, **options):
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if stdout is None:
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self.stdout = sys.stdout
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else:
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self.stdout = stdout
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self.options = options
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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 run(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.options['all']:
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if not self.options['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.options['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.options['purge-packages']:
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if not self.options['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.options['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.options['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.options['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.options['all']:
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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:
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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.options['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.options['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(options):
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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 options['quiet']:
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sys.stdout.write('- [v] %s\n' % (version))
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if options['no-log']:
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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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class Command(BaseCommand):
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_overlays = {}
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option_list = BaseCommand.option_list + (
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make_option('--all',
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action='store_true',
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dest='all',
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default=False,
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help='Scan all packages'),
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make_option('--purge-packages',
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action='store_true',
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dest='purge-packages',
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default=False,
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help='Purge old packages'),
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make_option('--purge-versions',
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action='store_true',
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dest='purge-versions',
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default=False,
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help='Purge old versions'),
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make_option('--no-log',
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action='store_true',
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dest='no-log',
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default=False,
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help='Don\'t store logs'),
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make_option('--prefetch',
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action='store_true',
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dest='prefetch',
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default=False,
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help=('Prefetch all versions and packages from DB to '
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'speedup full scan process.')),
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make_option('--quiet',
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action='store_true',
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dest='quiet',
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default=False,
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help='Be quiet'),
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)
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args = '[package package ...]'
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help = 'Scans portage tree and fills database'
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def handle(self, *args, **options):
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scan_portage = ScanPortage(stdout=self.stdout, **options)
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if not options['quiet']:
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self.stdout.write('Scanning portage tree...\n')
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if options['prefetch']:
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if not options['quiet']:
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self.stdout.write('Prefetching objects...')
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self.stdout.flush()
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for package in Package.objects.all():
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scan_portage.cache_store_package(package)
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for version in Version.objects.select_related('package').all():
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scan_portage.cache_store_version(version)
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if not options['quiet']:
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self.stdout.write('done\n')
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if options['all']:
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scan_portage.run()
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elif len(args):
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for package in args:
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scan_portage.run(package)
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else:
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for package in sys.stdin.readlines():
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scan_portage.run(package[:-1])
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if options['purge-versions']:
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purge_versions(options)
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if not options['quiet']:
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self.stdout.write('Done.\n')
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