def delete(self, overlay):
'''
Add an overlay to the local list of overlays.
>>> import tempfile
>>> tmpdir = tempfile.mkdtemp(prefix="laymantmp_")
>>> write = os.path.join(tmpdir, 'installed.xml')
>>> write2 = os.path.join(tmpdir, 'make.conf')
>>> here = os.path.dirname(os.path.realpath(__file__))
>>> from layman.config import OptionConfig
>>> myoptions = {'installed' :
... here + '/tests/testfiles/global-overlays.xml',
... 'local_list': here + '/tests/testfiles/overlays.xml',
... 'make_conf' : write2,
... 'nocheck' : 'yes',
... 'storage' : tmpdir}
>>> config = OptionConfig(myoptions)
>>> config.set_option('quietness', 3)
>>> a = DB(config)
>>> config.set_option('installed', write)
>>> b = DB(config)
>>> config['output'].set_colorize(False)
>>> m = MakeConf(config, b.overlays)
>>> m.path = here + '/tests/testfiles/make.conf'
>>> m.read()
True
>>> m.path = write2
>>> m.write()
True
# >>> b.add(a.select('wrobel-stable')) #doctest: +ELLIPSIS
# * Running command "/usr/bin/rsync -rlptDvz --progress --delete --delete-after --timeout=180 --exclude="distfiles/*" --exclude="local/*" --exclude="packages/*" "rsync://gunnarwrobel.de/wrobel-stable/*" "/tmp/file.../wrobel-stable""...
# >>> b.add(a.select('wrobel')) #doctest: +ELLIPSIS
# * Running command "/usr/bin/svn co "https://overlays.gentoo.org/svn/dev/wrobel/" "/tmp/file.../wrobel""...
# >>> c = DbBase([write, ], dict())
# >>> c.overlays.keys()
# [u'wrobel', u'wrobel-stable']
# >>> b.delete(b.select('wrobel'))
# >>> c = DbBase([write, ], dict())
# >>> c.overlays.keys()
# [u'wrobel-stable']
# >>> m = MakeConf(config, b.overlays)
# >>> [i.name for i in m.overlays] #doctest: +ELLIPSIS
# [u'wrobel-stable']
# >>> os.unlink(write)
>>> os.unlink(write2)
>>> import shutil
>>> shutil.rmtree(tmpdir)
'''
if overlay.name in self.overlays.keys():
make_conf = MakeConf(self.config, self.overlays)
overlay.delete(self.config['storage'])
del self.overlays[overlay.name]
self.write(self.path)
make_conf.delete(overlay)
else:
self.output.error('No local overlay named "' + overlay.name + '"!')
return False
return True
