diff options
Diffstat (limited to 'pym/gentoolkit/versionmatch.py')
| -rw-r--r-- | pym/gentoolkit/versionmatch.py | 209 |
1 files changed, 103 insertions, 106 deletions
diff --git a/pym/gentoolkit/versionmatch.py b/pym/gentoolkit/versionmatch.py index 9287c13..48c12ad 100644 --- a/pym/gentoolkit/versionmatch.py +++ b/pym/gentoolkit/versionmatch.py @@ -21,112 +21,109 @@ from gentoolkit.cpv import CPV # Classes # ======= + class VersionMatch: - """Gentoo version comparison object from pkgcore.ebuild.atom_restricts. - - Any overriding of this class *must* maintain numerical order of - self.vals, see intersect for reason why. vals also must be a tuple. - """ - _convert_op2int = {(-1,):"<", (-1, 0): "<=", (0,):"=", - (0, 1):">=", (1,):">"} - - _convert_int2op = dict([(v, k) for k, v in _convert_op2int.items()]) - - def __init__(self, cpv, op='='): - """Initialize a VersionMatch instance. - - @type cpv: L{gentoolkit.cpv.CPV} - @param cpv: cpv object - @type op: str - @keyword op: operator - """ - - if not isinstance(cpv, (CPV, self.__class__)): - err = "cpv must be a gentoolkit.cpv.CPV " - err += "or gentoolkit.versionmatch.VersionMatch instance" - raise ValueError(err) - self.cpv = cpv - self.operator = op - self.version = cpv.version - self.revision = cpv.revision - self.fullversion = cpv.fullversion - - if self.operator != "~" and self.operator not in self._convert_int2op: - raise errors.GentoolkitInvalidVersion( - "invalid operator '%s'" % self.operator) - - if self.operator == "~": - if not self.version: - raise errors.GentoolkitInvalidVersion( - "for ~ op, ver must be specified") - self.droprevision = True - self.values = (0,) - else: - self.droprevision = False - self.values = self._convert_int2op[self.operator] - - def match(self, other): - """See whether a passed in VersionMatch or CPV instance matches self. - - Example usage: - >>> from gentoolkit.versionmatch import VersionMatch - >>> from gentoolkit.cpv import CPV - >>> VersionMatch(CPV('foo/bar-1.5'), op='>').match( - ... VersionMatch(CPV('foo/bar-2.0'))) - True - - @type other: gentoolkit.versionmatch.VersionMatch OR - gentoolkit.cpv.CPV - @param other: version to compare with self's version - @rtype: bool - """ - - if self.droprevision: - ver1, ver2 = self.version, other.version - else: - ver1, ver2 = self.fullversion, other.fullversion - - return vercmp(ver2, ver1) in self.values - - def __str__(self): - operator = self._convert_op2int[self.values] - - if self.droprevision or not self.revision: - return "ver %s %s" % (operator, self.version) - return "ver-rev %s %s-%s" % ( - operator, self.version, self.revision - ) - - def __repr__(self): - return "<%s %r>" % (self.__class__.__name__, str(self)) - - @staticmethod - def _convert_ops(inst): - if inst.droprevision: - return inst.values - return tuple(sorted(set((-1, 0, 1)).difference(inst.values))) - - def __eq__(self, other): - if self is other: - return True - if isinstance(other, self.__class__): - if (self.droprevision != other.droprevision or - self.version != other.version or - self.revision != other.revision): - return False - return self._convert_ops(self) == self._convert_ops(other) - - return False - - def __ne__(self, other): - return not self == other - - def __hash__(self): - return hash(( - self.droprevision, - self.version, - self.revision, - self.values - )) + """Gentoo version comparison object from pkgcore.ebuild.atom_restricts. + + Any overriding of this class *must* maintain numerical order of + self.vals, see intersect for reason why. vals also must be a tuple. + """ + + _convert_op2int = {(-1,): "<", (-1, 0): "<=", (0,): "=", (0, 1): ">=", (1,): ">"} + + _convert_int2op = dict([(v, k) for k, v in _convert_op2int.items()]) + + def __init__(self, cpv, op="="): + """Initialize a VersionMatch instance. + + @type cpv: L{gentoolkit.cpv.CPV} + @param cpv: cpv object + @type op: str + @keyword op: operator + """ + + if not isinstance(cpv, (CPV, self.__class__)): + err = "cpv must be a gentoolkit.cpv.CPV " + err += "or gentoolkit.versionmatch.VersionMatch instance" + raise ValueError(err) + self.cpv = cpv + self.operator = op + self.version = cpv.version + self.revision = cpv.revision + self.fullversion = cpv.fullversion + + if self.operator != "~" and self.operator not in self._convert_int2op: + raise errors.GentoolkitInvalidVersion( + "invalid operator '%s'" % self.operator + ) + + if self.operator == "~": + if not self.version: + raise errors.GentoolkitInvalidVersion("for ~ op, ver must be specified") + self.droprevision = True + self.values = (0,) + else: + self.droprevision = False + self.values = self._convert_int2op[self.operator] + + def match(self, other): + """See whether a passed in VersionMatch or CPV instance matches self. + + Example usage: + >>> from gentoolkit.versionmatch import VersionMatch + >>> from gentoolkit.cpv import CPV + >>> VersionMatch(CPV('foo/bar-1.5'), op='>').match( + ... VersionMatch(CPV('foo/bar-2.0'))) + True + + @type other: gentoolkit.versionmatch.VersionMatch OR + gentoolkit.cpv.CPV + @param other: version to compare with self's version + @rtype: bool + """ + + if self.droprevision: + ver1, ver2 = self.version, other.version + else: + ver1, ver2 = self.fullversion, other.fullversion + + return vercmp(ver2, ver1) in self.values + + def __str__(self): + operator = self._convert_op2int[self.values] + + if self.droprevision or not self.revision: + return "ver %s %s" % (operator, self.version) + return "ver-rev %s %s-%s" % (operator, self.version, self.revision) + + def __repr__(self): + return "<%s %r>" % (self.__class__.__name__, str(self)) + + @staticmethod + def _convert_ops(inst): + if inst.droprevision: + return inst.values + return tuple(sorted(set((-1, 0, 1)).difference(inst.values))) + + def __eq__(self, other): + if self is other: + return True + if isinstance(other, self.__class__): + if ( + self.droprevision != other.droprevision + or self.version != other.version + or self.revision != other.revision + ): + return False + return self._convert_ops(self) == self._convert_ops(other) + + return False + + def __ne__(self, other): + return not self == other + + def __hash__(self): + return hash((self.droprevision, self.version, self.revision, self.values)) + # vim: set ts=4 sw=4 tw=79: |