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# Copyright (C) 2011 Codethink Limited
#
# 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.
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import logging
import os
import morphlib
class Builder(object):
'''Build binary objects for Baserock.
The objects may be chunks or strata.'''
def __init__(self, tempdir, msg):
self.tempdir = tempdir
self.msg = msg
def build(self, morph):
'''Build a binary based on a morphology.'''
if morph.kind == 'chunk':
self.build_chunk(morph)
elif morph.kind == 'stratum':
self.build_stratum(morph)
else:
raise Exception('Unknown kind of morphology: %s' % morph.kind)
def build_chunk(self, morph):
'''Build a chunk from a morphology.'''
logging.debug('Building chunk')
self.ex = morphlib.execute.Execute(self._build, self.msg)
self.ex.env['WORKAREA'] = self.tempdir.dirname
self.ex.env['DESTDIR'] = self._inst + '/'
self.create_build_tree(morph)
self.ex.run(morph.configure_commands)
self.ex.run(morph.build_commands)
self.ex.run(morph.test_commands)
self.ex.run(morph.install_commands)
self.create_chunk(morph)
self.tempdir.clear()
def create_build_tree(self, morph):
'''Export sources from git into the ``self._build`` directory.'''
logging.debug('Creating build tree at %s' % self._build)
tarball = self.tempdir.join('sources.tar')
self.ex.runv(['git', 'archive',
'--output', tarball,
'--remote', morph.source['repo'],
morph.source['ref']])
os.mkdir(self._build)
self.ex.runv(['tar', '-C', self._build, '-xf', tarball])
os.remove(tarball)
def create_chunk(self, morph):
'''Create a Baserock chunk from the ``self._inst`` directory.
The directory must be filled in with all the relevant files already.
'''
dirname = os.path.dirname(morph.filename)
filename = os.path.join(dirname, '%s.chunk' % morph.name)
logging.debug('Creating chunk %s at %s' % (morph.name, filename))
self.ex.runv(['tar', '-C', self._inst, '-czf', filename, '.'])
def build_stratum(self, morph):
'''Build a stratum from a morphology.'''
os.mkdir(self._inst)
self.ex = morphlib.execute.Execute(self.tempdir.dirname, self.msg)
for chunk_name in morph.sources:
filename = self._chunk_filename(morph, chunk_name)
self.unpack_chunk(filename)
self.create_stratum(morph)
self.tempdir.clear()
def unpack_chunk(self, filename):
self.ex.runv(['tar', '-C', self._inst, '-xf', filename])
def create_stratum(self, morph):
'''Create a Baserock stratum from the ``self._inst`` directory.
The directory must be filled in with all the relevant files already.
'''
dirname = os.path.dirname(morph.filename)
filename = os.path.join(dirname, '%s.stratum' % morph.name)
logging.debug('Creating stratum %s at %s' % (morph.name, filename))
self.ex.runv(['tar', '-C', self._inst, '-czf', filename, '.'])
@property
def _build(self):
return self.tempdir.join('build')
@property
def _inst(self):
return self.tempdir.join('inst')
def _chunk_filename(self, morph, chunk_name):
dirname = os.path.dirname(morph.filename)
return os.path.join(dirname, '%s.chunk' % chunk_name)
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