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How to use get_default_koji_tag method in autotest

Best Python code snippet using autotest_python

utils_koji.py

Source:utils_koji.py

...411    Sets the default tag that will be used412    '''413    global DEFAULT_KOJI_TAG414    DEFAULT_KOJI_TAG = tag415def get_default_koji_tag():416    return DEFAULT_KOJI_TAG417class KojiPkgSpec(object):418    '''419    A package specification syntax parser for Koji420    This holds information on either tag or build, and packages to be fetched421    from koji and possibly installed (features external do this class).422    New objects can be created either by providing information in the textual423    format or by using the actual parameters for tag, build, package and sub-424    packages. The textual format is useful for command line interfaces and425    configuration files, while using parameters is better for using this in426    a programatic fashion.427    The following sets of examples are interchangeable. Specifying all packages428    part of build number 1000:429        >>> from kvm_utils import KojiPkgSpec430        >>> pkg = KojiPkgSpec('1000')431        >>> pkg = KojiPkgSpec(build=1000)432    Specifying only a subset of packages of build number 1000:433        >>> pkg = KojiPkgSpec('1000:kernel,kernel-devel')434        >>> pkg = KojiPkgSpec(build=1000,435                              subpackages=['kernel', 'kernel-devel'])436    Specifying the latest build for the 'kernel' package tagged with 'dist-f14':437        >>> pkg = KojiPkgSpec('dist-f14:kernel')438        >>> pkg = KojiPkgSpec(tag='dist-f14', package='kernel')439    Specifying the 'kernel' package using the default tag:440        >>> kvm_utils.set_default_koji_tag('dist-f14')441        >>> pkg = KojiPkgSpec('kernel')442        >>> pkg = KojiPkgSpec(package='kernel')443    Specifying the 'kernel' package using the default tag:444        >>> kvm_utils.set_default_koji_tag('dist-f14')445        >>> pkg = KojiPkgSpec('kernel')446        >>> pkg = KojiPkgSpec(package='kernel')447    If you do not specify a default tag, and give a package name without an448    explicit tag, your package specification is considered invalid:449        >>> print kvm_utils.get_default_koji_tag()450        None451        >>> print kvm_utils.KojiPkgSpec('kernel').is_valid()452        False453        >>> print kvm_utils.KojiPkgSpec(package='kernel').is_valid()454        False455    '''456    SEP = ':'457    def __init__(self, text='', tag=None, build=None,458                 package=None, subpackages=[]):459        '''460        Instantiates a new KojiPkgSpec object461        :type text: string462        :param text: a textual representation of a package on Koji that463                will be parsed464        :type tag: string465        :param tag: a koji tag, example: Fedora-14-RELEASE466                (see U{http://fedoraproject.org/wiki/Koji#Tags_and_Targets})467        :type build: number468        :param build: a koji build, example: 1001469                (see U{http://fedoraproject.org/wiki/Koji#Koji_Architecture})470        :type package: string471        :param package: a koji package, example: python472                (see U{http://fedoraproject.org/wiki/Koji#Koji_Architecture})473        :type subpackages: list of strings474        :param subpackages: a list of package names, usually a subset of475                the RPM packages generated by a given build476        '''477        # Set to None to indicate 'not set' (and be able to use 'is')478        self.tag = None479        self.build = None480        self.package = None481        self.subpackages = []482        self.default_tag = None483        # Textual representation takes precedence (most common use case)484        if text:485            self.parse(text)486        else:487            self.tag = tag488            self.build = build489            self.package = package490            self.subpackages = subpackages491        # Set the default tag, if set, as a fallback492        if not self.build and not self.tag:493            default_tag = get_default_koji_tag()494            if default_tag is not None:495                self.tag = default_tag496    def parse(self, text):497        '''498        Parses a textual representation of a package specification499        :type text: string500        :param text: textual representation of a package in koji501        '''502        parts = text.count(self.SEP) + 1503        if parts == 1:504            if text.isdigit():505                self.build = text506            else:507                self.package = text508        elif parts == 2:509            part1, part2 = text.split(self.SEP)510            if part1.isdigit():511                self.build = part1512                self.subpackages = part2.split(',')513            else:514                self.tag = part1515                self.package = part2516        elif parts >= 3:517            # Instead of erroring on more arguments, we simply ignore them518            # This makes the parser suitable for future syntax additions, such519            # as specifying the package architecture520            part1, part2, part3 = text.split(self.SEP)[0:3]521            self.tag = part1522            self.package = part2523            self.subpackages = part3.split(',')524    def _is_invalid_neither_tag_or_build(self):525        '''526        Checks if this package is invalid due to not having either a valid527        tag or build set, that is, both are empty.528        :return: True if this is invalid and False if it's valid529        '''530        return (self.tag is None and self.build is None)531    def _is_invalid_package_but_no_tag(self):532        '''533        Checks if this package is invalid due to having a package name set534        but tag or build set, that is, both are empty.535        :return: True if this is invalid and False if it's valid536        '''537        return (self.package and not self.tag)538    def _is_invalid_subpackages_but_no_main_package(self):539        '''540        Checks if this package is invalid due to having a tag set (this is Ok)541        but specifying subpackage names without specifying the main package542        name.543        Specifying subpackages without a main package name is only valid when544        a build is used instead of a tag.545        :return: True if this is invalid and False if it's valid546        '''547        return (self.tag and self.subpackages and not self.package)548    def is_valid(self):549        '''550        Checks if this package specification is valid.551        Being valid means that it has enough and not conflicting information.552        It does not validate that the packages specified actually existe on553        the Koji server.554        :return: True or False555        '''556        if self._is_invalid_neither_tag_or_build():557            return False558        elif self._is_invalid_package_but_no_tag():559            return False560        elif self._is_invalid_subpackages_but_no_main_package():561            return False562        return True563    def describe_invalid(self):564        '''565        Describes why this is not valid, in a human friendly way566        '''567        if self._is_invalid_neither_tag_or_build():568            return ('neither a tag nor a build were set, one of them '569                    'must be set')570        elif self._is_invalid_package_but_no_tag():571            return 'package name specified but no tag is set'572        elif self._is_invalid_subpackages_but_no_main_package():573            return 'subpackages specified but no main package is set'574        return 'unkwown reason, seems to be valid'575    def describe(self):576        '''577        Describe this package specification, in a human friendly way578        :return: package specification description579        '''580        if self.is_valid():581            description = ''582            if not self.subpackages:583                description += 'all subpackages from %s ' % self.package584            else:585                description += ('only subpackage(s) %s from package %s ' %586                                (', '.join(self.subpackages), self.package))587            if self.build:588                description += 'from build %s' % self.build589            elif self.tag:590                description += 'tagged with %s' % self.tag591            else:592                raise ValueError('neither build or tag is set')593            return description594        else:595            return ('Invalid package specification: %s' %596                    self.describe_invalid())597    def to_text(self):598        '''599        Return the textual representation of this package spec600        The output should be consumable by parse() and produce the same601        package specification.602        We find that it's acceptable to put the currently set default tag603        as the package explicit tag in the textual definition for completeness.604        :return: package specification in a textual representation605        '''606        default_tag = get_default_koji_tag()607        if self.build:608            if self.subpackages:609                return "%s:%s" % (self.build, ",".join(self.subpackages))610            else:611                return "%s" % self.build612        elif self.tag:613            if self.subpackages:614                return "%s:%s:%s" % (self.tag, self.package,615                                     ",".join(self.subpackages))616            else:617                return "%s:%s" % (self.tag, self.package)618        elif default_tag is not None:619            # neither build or tag is set, try default_tag as a fallback620            if self.subpackages:...

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