/usr/share/pyshared/gbp/pkg/__init__.py is in git-buildpackage 0.6.0~git20120601.
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#
# (C) 2006,2007 Guido Guenther <agx@sigxcpu.org>
# (C) 2012 Intel Corporation <markus.lehtonen@linux.intel.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Common functionality of the Debian/RPM package helpers"""
import os
import re
import glob
import gbp.log
import gbp.command_wrappers as gbpc
from gbp.errors import GbpError
from gbp.command_wrappers import Command
# compression types, extra options and extensions
compressor_opts = { 'gzip' : [ '-n', 'gz' ],
'bzip2' : [ '', 'bz2' ],
'lzma' : [ '', 'lzma' ],
'xz' : [ '', 'xz' ] }
# Map frequently used names of compression types to the internal ones:
compressor_aliases = { 'bz2' : 'bzip2',
'gz' : 'gzip', }
class PkgPolicy(object):
@classmethod
def is_valid_packagename(cls, name):
"Is this a valid package name?"
return cls.packagename_re.match(name)
@classmethod
def is_valid_upstreamversion(cls, version):
"Is this a valid upstream version number?"
return cls.upstreamversion_re.match(version)
@staticmethod
def get_compression(orig_file):
"""
Given an orig file return the compression used
>>> PkgPolicy.get_compression("abc.tar.gz")
'gzip'
>>> PkgPolicy.get_compression("abc.tar.bz2")
'bzip2'
>>> PkgPolicy.get_compression("abc.tar.foo")
>>> PkgPolicy.get_compression("abc")
"""
try:
ext = orig_file.rsplit('.',1)[1]
except IndexError:
return None
for (c, o) in compressor_opts.iteritems():
if o[1] == ext:
return c
return None
@staticmethod
def has_orig(orig_file, dir):
"Check if orig tarball exists in dir"
try:
os.stat( os.path.join(dir, orig_file) )
except OSError:
return False
return True
@staticmethod
def symlink_orig(orig_file, orig_dir, output_dir, force=False):
"""
symlink orig tarball from orig_dir to output_dir
@return: True if link was created or src == dst
False in case of error or src doesn't exist
"""
orig_dir = os.path.abspath(orig_dir)
output_dir = os.path.abspath(output_dir)
if orig_dir == output_dir:
return True
src = os.path.join(orig_dir, orig_file)
dst = os.path.join(output_dir, orig_file)
if not os.access(src, os.F_OK):
return False
try:
if os.access(dst, os.F_OK) and force:
os.unlink(dst)
os.symlink(src, dst)
except OSError:
return False
return True
class UpstreamSource(object):
"""
Upstream source. Can be either an unpacked dir, a tarball or another type
of archive
@cvar _orig: are the upstream sources already suitable as an upstream
tarball
@type _orig: boolean
@cvar _path: path to the upstream sources
@type _path: string
@cvar _unpacked: path to the unpacked source tree
@type _unpacked: string
"""
def __init__(self, name, unpacked=None):
self._orig = False
self._path = name
self.unpacked = unpacked
self._check_orig()
if self.is_dir():
self.unpacked = self.path
def _check_orig(self):
"""
Check if upstream source format can be used as orig tarball.
This doesn't imply that the tarball is correctly named.
@return: C{True} if upstream source format is suitable
as upstream tarball, C{False} otherwise.
@rtype: C{bool}
"""
if self.is_dir():
self._orig = False
return
parts = self._path.split('.')
try:
if parts[-1] == 'tgz':
self._orig = True
elif parts[-2] == 'tar':
if (parts[-1] in compressor_opts or
parts[-1] in compressor_aliases):
self._orig = True
except IndexError:
self._orig = False
def is_orig(self):
"""
@return: C{True} if sources are suitable as upstream source,
C{False} otherwise
@rtype: C{bool}
"""
return self._orig
def is_dir(self):
"""
@return: C{True} if if upstream sources are an unpacked directory,
C{False} otherwise
@rtype: C{bool}
"""
return True if os.path.isdir(self._path) else False
@property
def path(self):
return self._path.rstrip('/')
def unpack(self, dir, filters=[]):
"""
Unpack packed upstream sources into a given directory
and determine the toplevel of the source tree.
"""
if self.is_dir():
raise GbpError, "Cannot unpack directory %s" % self.path
if not filters:
filters = []
if type(filters) != type([]):
raise GbpError, "Filters must be a list"
self._unpack_archive(dir, filters)
self.unpacked = self._unpacked_toplevel(dir)
def _unpack_archive(self, dir, filters):
"""
Unpack packed upstream sources into a given directory.
"""
ext = os.path.splitext(self.path)[1]
if ext in [ ".zip", ".xpi" ]:
self._unpack_zip(dir)
else:
self._unpack_tar(dir, filters)
def _unpack_zip(self, dir):
try:
gbpc.UnpackZipArchive(self.path, dir)()
except gbpc.CommandExecFailed:
raise GbpError, "Unpacking of %s failed" % self.path
def _unpacked_toplevel(self, dir):
"""unpacked archives can contain a leading directory or not"""
unpacked = glob.glob('%s/*' % dir)
unpacked.extend(glob.glob("%s/.*" % dir)) # include hidden files and folders
# Check that dir contains nothing but a single folder:
if len(unpacked) == 1 and os.path.isdir(unpacked[0]):
return unpacked[0]
else:
return dir
def _unpack_tar(self, dir, filters):
"""
Unpack a tarball to I{dir} applying a list of I{filters}. Leave the
cleanup to the caller in case of an error.
"""
try:
unpackArchive = gbpc.UnpackTarArchive(self.path, dir, filters)
unpackArchive()
except gbpc.CommandExecFailed:
# unpackArchive already printed an error message
raise GbpError
def pack(self, newarchive, filters=[]):
"""
Recreate a new archive from the current one
@param newarchive: the name of the new archive
@type newarchive: string
@param filters: tar filters to apply
@type filters: array of strings
@return: the new upstream source
@rtype: UpstreamSource
"""
if not self.unpacked:
raise GbpError, "Need an unpacked source tree to pack"
if not filters:
filters = []
if type(filters) != type([]):
raise GbpError, "Filters must be a list"
try:
unpacked = self.unpacked.rstrip('/')
repackArchive = gbpc.PackTarArchive(newarchive,
os.path.dirname(unpacked),
os.path.basename(unpacked),
filters)
repackArchive()
except gbpc.CommandExecFailed:
# repackArchive already printed an error
raise GbpError
return UpstreamSource(newarchive)
@staticmethod
def known_compressions():
return [ args[1][-1] for args in compressor_opts.items() ]
def guess_version(self, extra_regex=r''):
"""
Guess the package name and version from the filename of an upstream
archive.
>>> UpstreamSource('foo-bar_0.2.orig.tar.gz').guess_version()
('foo-bar', '0.2')
>>> UpstreamSource('foo-Bar_0.2.orig.tar.gz').guess_version()
>>> UpstreamSource('git-bar-0.2.tar.gz').guess_version()
('git-bar', '0.2')
>>> UpstreamSource('git-bar-0.2-rc1.tar.gz').guess_version()
('git-bar', '0.2-rc1')
>>> UpstreamSource('git-bar-0.2:~-rc1.tar.gz').guess_version()
('git-bar', '0.2:~-rc1')
>>> UpstreamSource('git-Bar-0A2d:rc1.tar.bz2').guess_version()
('git-Bar', '0A2d:rc1')
>>> UpstreamSource('git-1.tar.bz2').guess_version()
('git', '1')
>>> UpstreamSource('kvm_87+dfsg.orig.tar.gz').guess_version()
('kvm', '87+dfsg')
>>> UpstreamSource('foo-Bar_0.2.orig.tar.gz').guess_version()
>>> UpstreamSource('foo-Bar-a.b.tar.gz').guess_version()
>>> UpstreamSource('foo-bar_0.2.orig.tar.xz').guess_version()
('foo-bar', '0.2')
>>> UpstreamSource('foo-bar_0.2.orig.tar.lzma').guess_version()
('foo-bar', '0.2')
@param extra_regex: additional regex to apply, needs a 'package' and a
'version' group
@return: (package name, version) or None.
@rtype: tuple
"""
version_chars = r'[a-zA-Z\d\.\~\-\:\+]'
extensions = r'\.tar\.(%s)' % "|".join(self.known_compressions())
version_filters = map ( lambda x: x % (version_chars, extensions),
( # Debian package_<version>.orig.tar.gz:
r'^(?P<package>[a-z\d\.\+\-]+)_(?P<version>%s+)\.orig%s',
# Upstream package-<version>.tar.gz:
r'^(?P<package>[a-zA-Z\d\.\+\-]+)-(?P<version>[0-9]%s*)%s'))
if extra_regex:
version_filters = extra_regex + version_filters
for filter in version_filters:
m = re.match(filter, os.path.basename(self.path))
if m:
return (m.group('package'), m.group('version'))
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