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#!/usr/bin/env python
import os, os.path, re, shutil, sys
class Changelog(list):
_rules = r"""
^
(?P<source>
\w[-+0-9a-z.]+
)
\
\(
(?P<version>
[^\(\)\ \t]+
)
\)
\s+
(?P<distribution>
[-+0-9a-zA-Z.]+
)
\;
"""
_re = re.compile(_rules, re.X)
class Entry(object):
__slot__ = 'distribution', 'source', 'version'
def __init__(self, distribution, source, version):
self.distribution, self.source, self.version = distribution, source, version
def __init__(self, dir):
f = file(os.path.join(dir, "debian/changelog"))
while True:
line = f.readline()
if not line:
break
match = self._re.match(line)
if not match:
continue
self.append(self.Entry(match.group('distribution'), match.group('source'), match.group('version')))
class GenOrig(object):
log = sys.stdout.write
def __init__(self, root, orig, input_tar, version):
self.orig, self.input_tar, self.version = orig, input_tar, version
changelog = Changelog(root)
self.source = changelog[0].source
def __call__(self):
import tempfile
self.dir = tempfile.mkdtemp(prefix = 'genorig', dir = 'debian')
try:
self.orig_dir = "%s-%s" % (self.source, self.version)
self.orig_tar = "%s_%s.orig.tar.gz" % (self.source, self.version)
self.do_upstream()
self.do_orig()
finally:
shutil.rmtree(self.dir)
def do_upstream(self):
self.log("Extracting tarball %s\n" % self.input_tar)
match = re.match(r'(^|.*/)(?P<dir>[^/]+)\.(t|tar\.)(?P<extension>(gz|bz2))$', self.input_tar)
if not match:
raise RuntimeError("Can't identify name of tarball")
cmdline = ['tar -xf', self.input_tar, '-C', self.dir]
extension = match.group('extension')
if extension == 'bz2':
cmdline.append('-j')
elif extension == 'gz':
cmdline.append('-z')
if os.spawnv(os.P_WAIT, '/bin/sh', ['sh', '-c', ' '.join(cmdline)]):
raise RuntimeError("Can't extract tarball")
os.rename(os.path.join(self.dir, match.group('dir')), os.path.join(self.dir, self.orig_dir))
def do_orig(self):
self.log("Generating tarball %s\n" % self.orig_tar)
out = os.path.join(self.orig, self.orig_tar)
try:
os.mkdir(self.orig)
except OSError: pass
try:
os.stat(out)
except OSError: pass
else:
raise RuntimeError("Destination already exists (%s)" % out)
cmdline = ['tar -czf', out, '-C', self.dir, self.orig_dir]
try:
if os.spawnv(os.P_WAIT, '/bin/sh', ['sh', '-c', ' '.join(cmdline)]):
raise RuntimeError("Can't patch source")
os.chmod(out, 0644)
except:
try:
os.unlink(out)
except OSError:
pass
raise
if __name__ == '__main__':
from optparse import OptionParser
p = OptionParser(usage = "%prog TAR VERSION")
options, args = p.parse_args(sys.argv)
if len(args) < 2:
raise RuntimeError("Need more arguments")
root = os.path.realpath(os.path.join(sys.path[0], '..', '..'))
orig = os.path.realpath(os.path.join(root, '..', 'orig'))
input_tar = args[1]
version = args[2]
GenOrig(root, orig, input_tar, version)()
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