355 lines
9.4 KiB
Python
355 lines
9.4 KiB
Python
import itertools, os.path, re, utils
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class Changelog(list):
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_rules = r"""
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^
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(?P<source>
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\w[-+0-9a-z.]+
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)
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\
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\(
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(?P<version>
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[^\(\)\ \t]+
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)
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\)
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\s+
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(?P<distribution>
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[-+0-9a-zA-Z.]+
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)
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\;
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"""
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_re = re.compile(_rules, re.X)
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class Entry(object):
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__slot__ = 'distribution', 'source', 'version'
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def __init__(self, distribution, source, version):
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self.distribution, self.source, self.version = distribution, source, version
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def __init__(self, dir = '', version = None):
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if version is None:
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version = Version
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f = file(os.path.join(dir, "debian/changelog"))
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while True:
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line = f.readline()
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if not line:
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break
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match = self._re.match(line)
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if not match:
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continue
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try:
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v = version(match.group('version'))
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except Exception:
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if not len(self):
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raise
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v = Version(match.group('version'))
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self.append(self.Entry(match.group('distribution'), match.group('source'), v))
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class Version(object):
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_version_rules = ur"""
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^
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(?:
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(?P<epoch>
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\d+
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)
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:
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)?
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(?P<upstream>
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.+?
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)
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(?:
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-
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(?P<debian>[^-]+)
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)?
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$
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"""
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_version_re = re.compile(_version_rules, re.X)
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def __init__(self, version):
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match = self._version_re.match(version)
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if match is None:
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raise RuntimeError, "Invalid debian version"
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self.complete = version
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self.epoch = None
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if match.group("epoch") is not None:
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self.epoch = int(match.group("epoch"))
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self.upstream = match.group("upstream")
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self.debian = match.group("debian")
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if self.debian is not None:
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self.complete_noepoch = "%s-%s" % (self.upstream, self.debian)
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else:
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self.complete_noepoch = self.upstream
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def __str__(self):
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return self.complete
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class VersionLinux(Version):
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_version_linux_rules = ur"""
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^
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(?P<version>
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(?P<major>\d+\.\d+)
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\.
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\d+
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)
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(?:
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~
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(?P<modifier>
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.+?
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)
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)?
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(?:
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\.dfsg\.\d+
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)?
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-
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(?:[^-]+)
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$
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"""
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_version_linux_re = re.compile(_version_linux_rules, re.X)
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def __init__(self, version):
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super(VersionLinux, self).__init__(version)
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match = self._version_linux_re.match(version)
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if match is None:
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raise RuntimeError, "Invalid debian linux version"
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d = match.groupdict()
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self.linux_major = d['major']
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self.linux_modifier = d['modifier']
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self.linux_version = d['version']
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if d['modifier'] is not None:
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self.linux_upstream = '-'.join((d['version'], d['modifier']))
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else:
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self.linux_upstream = d['version']
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class package_description(object):
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__slots__ = "short", "long"
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def __init__(self, value = None):
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self.long = []
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if value is not None:
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self.short, long = value.split("\n", 1)
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self.append(long)
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else:
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self.short = None
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def __str__(self):
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ret = self.short + '\n'
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w = utils.wrap(width = 74, fix_sentence_endings = True)
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pars = []
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for i in self.long:
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pars.append('\n '.join(w.wrap(i)))
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return self.short + '\n ' + '\n .\n '.join(pars)
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def append(self, str):
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str = str.strip()
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if str:
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self.long.extend(str.split("\n.\n"))
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class package_relation(object):
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__slots__ = "name", "operator", "version", "arches"
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_re = re.compile(r'^(\S+)(?: \((<<|<=|=|!=|>=|>>)\s*([^)]+)\))?(?: \[([^]]+)\])?$')
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class _operator(object):
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OP_LT = 1
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OP_LE = 2
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OP_EQ = 3
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OP_NE = 4
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OP_GE = 5
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OP_GT = 6
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operators = {
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'<<': OP_LT,
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'<=': OP_LE,
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'=': OP_EQ,
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'!=': OP_NE,
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'>=': OP_GE,
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'>>': OP_GT,
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}
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operators_neg = {
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OP_LT: OP_GE,
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OP_LE: OP_GT,
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OP_EQ: OP_NE,
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OP_NE: OP_EQ,
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OP_GE: OP_LT,
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OP_GT: OP_LE,
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}
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operators_text = dict([(b, a) for a, b in operators.iteritems()])
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__slots__ = '_op',
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def __init__(self, value):
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self._op = self.operators[value]
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def __neg__(self):
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return self.__class__(self.operators_text[self.operators_neg[self._op]])
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def __str__(self):
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return self.operators_text[self._op]
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def __init__(self, value = None):
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if value is not None:
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self.parse(value)
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else:
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self.name = None
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self.operator = None
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self.version = None
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self.arches = []
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def __str__(self):
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ret = [self.name]
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if self.operator is not None and self.version is not None:
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ret.extend([' (', str(self.operator), ' ', self.version, ')'])
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if self.arches:
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ret.extend([' [', ' '.join(self.arches), ']'])
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return ''.join(ret)
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def config(self, entry):
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if self.version is not None or self.arches:
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return
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value = entry.get(self.name, None)
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if value is None:
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return
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self.parse(value)
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def parse(self, value):
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match = self._re.match(value)
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if match is None:
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raise RuntimeError, "Can't parse dependency %s" % value
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match = match.groups()
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self.name = match[0]
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if match[1] is not None:
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self.operator = self._operator(match[1])
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else:
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self.operator = None
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self.version = match[2]
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if match[3] is not None:
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self.arches = re.split('\s+', match[3])
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else:
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self.arches = []
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class package_relation_list(list):
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def __init__(self, value = None):
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if value is not None:
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self.extend(value)
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def __str__(self):
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return ', '.join([str(i) for i in self])
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def _match(self, value):
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for i in self:
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if i._match(value):
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return i
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return None
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def append(self, value):
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if isinstance(value, basestring):
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value = package_relation_group(value)
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elif not isinstance(value, package_relation_group):
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raise ValueError, "got %s" % type(value)
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j = self._match(value)
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if j:
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j._update_arches(value)
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else:
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super(package_relation_list, self).append(value)
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def config(self, entry):
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for i in self:
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i.config(entry)
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def extend(self, value):
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if isinstance(value, basestring):
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value = [j.strip() for j in re.split(',', value.strip())]
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elif not isinstance(value, (list, tuple)):
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raise ValueError, "got %s" % type(value)
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for i in value:
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self.append(i)
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class package_relation_group(list):
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def __init__(self, value = None):
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if value is not None:
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self.extend(value)
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def __str__(self):
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return ' | '.join([str(i) for i in self])
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def _match(self, value):
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for i, j in itertools.izip(self, value):
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if i.name != j.name or i.version != j.version:
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return None
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return self
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def _update_arches(self, value):
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for i, j in itertools.izip(self, value):
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if i.arches:
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for arch in j.arches:
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if arch not in i.arches:
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i.arches.append(arch)
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def append(self, value):
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if isinstance(value, basestring):
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value = package_relation(value)
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elif not isinstance(value, package_relation):
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raise ValueError
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super(package_relation_group, self).append(value)
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def config(self, entry):
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for i in self:
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i.config(entry)
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def extend(self, value):
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if isinstance(value, basestring):
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value = [j.strip() for j in re.split('\|', value.strip())]
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elif not isinstance(value, (list, tuple)):
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raise ValueError
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for i in value:
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self.append(i)
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class package(dict):
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_fields = utils.sorted_dict((
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('Package', str),
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('Source', str),
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('Architecture', utils.field_list),
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('Section', str),
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('Priority', str),
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('Maintainer', str),
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('Uploaders', str),
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('Standards-Version', str),
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('Build-Depends', package_relation_list),
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('Build-Depends-Indep', package_relation_list),
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('Provides', package_relation_list),
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('Pre-Depends', package_relation_list),
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('Depends', package_relation_list),
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('Recommends', package_relation_list),
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('Suggests', package_relation_list),
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('Replaces', package_relation_list),
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('Conflicts', package_relation_list),
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('Description', package_description),
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))
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def __setitem__(self, key, value):
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try:
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cls = self._fields[key]
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if not isinstance(value, cls):
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value = cls(value)
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except KeyError: pass
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super(package, self).__setitem__(key, value)
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def iterkeys(self):
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keys = set(self.keys())
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for i in self._fields.iterkeys():
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if self.has_key(i):
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keys.remove(i)
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yield i
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for i in keys:
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yield i
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def iteritems(self):
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for i in self.iterkeys():
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yield (i, self[i])
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def itervalues(self):
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for i in self.iterkeys():
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yield self[i]
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