def restrictions(self):
# ordering here matters; against 24702 ebuilds for
# a non matchable atom with package as the first restriction
# 10 loops, best of 3: 206 msec per loop
# with category as the first(the obvious ordering)
# 10 loops, best of 3: 209 msec per loop
# why? because category is more likely to collide;
# at the time of this profiling, there were 151 categories.
# over 11k packages however.
r = [restricts.PackageDep(self.package), restricts.CategoryDep(self.category)]
if self.repo_id is not None:
r.insert(0, restricts.RepositoryDep(self.repo_id))
if self.fullver is not None:
if self.op == '=*':
r.append(packages.PackageRestriction(
"fullver", values.StrGlobMatch(self.fullver)))
else:
r.append(restricts.VersionMatch(
self.op, self.version, self.revision, negate=self.negate_vers))
if self.slot is not None:
r.append(restricts.SlotDep(self.slot))
if self.subslot is not None:
r.append(restricts.SubSlotDep(self.subslot))
if self.use is not None:
r.extend(restricts._parse_nontransitive_use(self.use))
return tuple(r)
def parse_match(text):
"""generate appropriate restriction for text
Parsing basically breaks it down into chunks split by /, with each
chunk allowing for prefix/postfix globbing- note that a postfixed
glob on package token is treated as package attribute matching,
not as necessarily a version match.
If only one chunk is found, it's treated as a package chunk.
Finally, it supports a nonstandard variation of atom syntax where
the category can be dropped.
Examples:
- `*`: match all
- `dev-*/*`: category must start with 'dev-'
- `dev-*`: package must start with 'dev-'
- `*-apps/portage*`: category must end in '-apps', package must start with
'portage'
- `>=portage-2.1`: atom syntax, package 'portage', version greater then or
equal to '2.1'
- dev-qt/*:5: all Qt 5 libs
- boost:0/1.60: all packages named boost with a slot/subslot of 0/1.60.0
:param text: string to attempt to parse
:type text: string
:return: :obj:`pkgcore.restrictions.packages` derivative
"""
# Ensure the text var is a string if we're under py3k.
if not is_py3k:
text = text.encode('ascii')
orig_text = text = text.strip()
if "!" in text:
raise ParseError(
"'!' or any form of blockers make no sense in this usage: '%s'" %
(text, ))
restrictions = []
if '::' in text:
text, repo_id = text.rsplit('::', 1)
restrictions.append(restricts.RepositoryDep(repo_id))
if ':' in text:
text, slot = text.rsplit(':', 1)
slot, _sep, subslot = slot.partition('/')
if slot:
restrictions.append(restricts.SlotDep(slot))
if subslot:
restrictions.append(restricts.SubSlotDep(subslot))
tsplit = text.rsplit("/", 1)
if len(tsplit) == 1:
ops, text = collect_ops(text)
if not ops:
if "*" in text:
r = convert_glob(text)
if r is None:
restrictions.append(packages.AlwaysTrue)
else:
restrictions.append(
packages.PackageRestriction("package", r))
if len(restrictions) == 1:
return restrictions[0]
return packages.AndRestriction(*restrictions)
elif text.startswith("*"):
raise ParseError(
"cannot do prefix glob matches with version ops: %s" %
(orig_text, ))
# ok... fake category. whee.
try:
r = list(
collect_package_restrictions(atom.atom(
"%scategory/%s" % (ops, text)).restrictions,
attrs=("category", ),
invert=True))
except errors.MalformedAtom as e:
e.atom = orig_text
raise_from(ParseError(str(e)))
if not restrictions and len(r) == 1:
return r[0]
restrictions.extend(r)
return packages.AndRestriction(*restrictions)
elif text[0] in "=<>~" or "*" not in text:
try:
return atom.atom(orig_text)
except errors.MalformedAtom as e:
raise_from(ParseError(str(e)))
r = map(convert_glob, tsplit)
if not r[0] and not r[1]:
restrictions.append(packages.AlwaysTrue)
elif not r[0]:
restrictions.append(packages.PackageRestriction("package", r[1]))
elif not r[1]:
restrictions.append(packages.PackageRestriction("category", r[0]))
else:
restrictions.extend((
packages.PackageRestriction("category", r[0]),
packages.PackageRestriction("package", r[1]),
))
if len(restrictions) == 1:
return restrictions[0]
return packages.AndRestriction(*restrictions)