296 lines
8.3 KiB
Python
296 lines
8.3 KiB
Python
#!/usr/bin/env python
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import os, os.path, re, sys
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from warnings import warn
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from debian_linux.patches import PatchSeries
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_default_home = "@home@"
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_default_revisions = "@revisions@"
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_default_source = "@source@"
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class MatchExtra(object):
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def __init__(self, arch, featureset):
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self.arch, self.featureset = arch, featureset
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self.matched_arch = self.matched_featureset = False
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def __call__(self, obj):
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data = obj.data
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match_arch = []
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match_featureset = []
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for i in data:
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if i.startswith("arch="):
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match_arch.append(i[5:])
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elif i.startswith("featureset="):
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match_featureset.append(i[11:])
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ret_arch = ret_featureset = False
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if self.arch is not None:
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if match_arch:
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if self.arch in match_arch:
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self.matched_arch = True
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ret_arch = True
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else:
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ret_arch = True
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if not match_featureset:
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ret_featureset = ret_arch
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if self.featureset is not None:
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if match_featureset:
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if self.featureset in match_featureset:
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self.matched_featureset = True
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ret_featureset = True
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else:
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ret_featureset = True
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return ret_arch and ret_featureset
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def __nonzero__(self):
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return self.arch is not None or self.featureset is not None
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def info(self):
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ret = []
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if self.matched_arch:
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ret.append("arch=%s" % self.arch)
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if self.matched_featureset:
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ret.append("featureset=%s" % self.featureset)
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return ret
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class SeriesList(list):
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def __call__(self, cond = bool, reverse = False):
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for i in self:
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i(cond = cond, reverse = reverse)
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if reverse:
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print "--> %s fully unapplied." % i.name
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else:
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print "--> %s fully applied." % i.name
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@classmethod
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def read(cls, revisions, home):
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ret = cls()
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for i in revisions:
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try:
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fp = file(os.path.join(home, 'series', i))
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ret.append(PatchSeries(i, home, fp))
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except IOError:
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pass
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return ret
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@classmethod
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def read_extra(cls, revisions, home):
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return cls.read((i + '-extra' for i in revisions), home)
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class version(object):
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__slots__ = "upstream", "revision"
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def __init__(self, string = None):
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if string is not None:
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self.upstream, self.revision = self.parse(string)
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def __str__(self):
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return "%s-%s" % (self.upstream, self.revision)
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_re = r"""
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^
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(
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\d+\.\d+\.\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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([^-]+)
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$
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"""
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def parse(self, version):
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match = re.match(self._re, version, re.X)
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if match is None:
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raise ValueError
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return match.groups()
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class version_file(object):
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_file = 'version.Debian'
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extra = None
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in_progress = False
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def __init__(self, ver = None, overwrite = False):
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if overwrite:
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self._read(ver)
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elif os.path.exists(self._file):
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s = file(self._file).readline().strip()
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self._read(s)
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elif ver:
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warn('No %s file, assuming pristine Linux %s' % (self._file, ver.upstream))
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self.version = version()
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self.version.upstream = ver.upstream
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self.version.revision = '0'
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else:
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raise RuntimeError, "Not possible to determine version"
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def __str__(self):
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if self.in_progress:
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return "unstable"
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if self.extra is not None:
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return ' '.join([str(self.version)] + self.extra.info())
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return str(self.version)
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def _read(self, s):
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list = s.split()
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try:
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self.version = version(list[0])
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except ValueError:
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raise RuntimeError, 'Can\'t read version in %s: "%s"' % (self._file, list[0])
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arch = featureset = None
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for i in list[1:]:
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if i.startswith("arch="):
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arch = i[5:]
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elif i.startswith("featureset="):
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featureset = i[11:]
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else:
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raise RuntimeError("Can't parse extra information")
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self.extra = MatchExtra(arch, featureset)
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def _write(self):
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if os.path.lexists(self._file):
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os.unlink(self._file)
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file(self._file, 'w').write('%s\n' % self)
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def begin(self):
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self.in_progress = True
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self._write()
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def commit(self, version = None, extra = None):
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self.in_progress = False
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if version is not None:
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self.version = version
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if extra is not None:
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self.extra = extra
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self._write()
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def main():
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options, args = parse_options()
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if len(args) > 1:
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print "Too much arguments"
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return
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home = options.home
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revisions = ['0'] + options.revisions.split()
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source = version(options.source)
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if len(args) == 1:
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target = version(args[0])
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else:
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target = source
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if options.current is not None:
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vfile = version_file(options.current, True)
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else:
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vfile = version_file(source)
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current = vfile.version
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current_extra = vfile.extra
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target_extra = MatchExtra(options.arch, options.featureset)
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if current.revision not in revisions:
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raise RuntimeError, "Current revision is not in our list of revisions"
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if target.revision not in revisions:
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raise RuntimeError, "Target revision is not in our list of revisions"
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if current.revision == target.revision and current_extra == target_extra:
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print "Nothing to do"
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return
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current_index = revisions.index(current.revision)
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source_index = revisions.index(source.revision)
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target_index = revisions.index(target.revision)
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if current_extra:
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if current_index != source_index:
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raise RuntimeError, "Can't patch from %s with options %s" % (current, ' '.join(current_extra))
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consider = revisions[1:current_index + 1]
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s = SeriesList.read_extra(consider, home)
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vfile.begin()
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s(cond = current_extra, reverse = True)
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vfile.commit(current)
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if current_index < target_index:
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consider = revisions[current_index + 1:target_index + 1]
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s = SeriesList.read(consider, home)
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vfile.begin()
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s()
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vfile.commit(target)
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elif current_index > target_index:
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consider = revisions[current_index + 1:target_index + 1]
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s = SeriesList.read(consider, home)
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vfile.begin()
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s(reverse = True)
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vfile.commit(target)
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if target_extra:
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consider = revisions[1:target_index + 1]
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s = SeriesList.read_extra(consider, home)
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vfile.begin()
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s(cond = target_extra)
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vfile.commit(target, target_extra)
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def parse_options():
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from optparse import OptionParser
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parser = OptionParser(
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usage = "%prog [OPTION]... [TARGET]",
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)
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parser.add_option(
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'-a', '--arch',
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dest = 'arch',
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help = "arch",
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)
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parser.add_option(
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'-f', '--featureset',
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dest = 'featureset',
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help = "featureset",
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)
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parser.add_option(
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'-C', '--overwrite-current',
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dest = 'current',
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help = "overwrite current",
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)
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parser.add_option(
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'-H', '--overwrite-home',
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default = _default_home, dest = 'home',
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help = "overwrite home [default: %default]",
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)
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parser.add_option(
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'-R', '--overwrite-revisions',
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default = _default_revisions, dest = 'revisions',
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help = "overwrite revisions [default: %default]",
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)
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parser.add_option(
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'-S', '--overwrite-source',
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default = _default_source, dest = 'source',
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help = "overwrite source [default: %default]",
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)
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options, args = parser.parse_args()
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if options.arch is None and options.featureset is not None:
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raise RuntimeError('You specified a featureset without an arch, this is not really working')
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return options, args
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if __name__ == '__main__':
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def showwarning(message, category, filename, lineno):
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sys.stderr.write("Warning: %s\n" % message)
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import warnings
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warnings.showwarning = showwarning
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try:
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main()
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except RuntimeError, e:
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sys.stderr.write("Error: %s\n" % e)
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raise SystemExit, 1
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