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#!/usr/bin/python
# Copyright (C) 2012-2013 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; 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.
# Check every system morphology in a checked out system branch by editing
# every chunk and recursively checking gitmodules.
import glob
import os
import re
import shutil
import tempfile
import cliapp
import yaml
class ReviewGitmodules(cliapp.Application):
def process_args(self, args):
chunks = self.read_all_systems()
for chunk in chunks:
self.check_chunk(chunk)
def merge_lists(self, old_list, new_list):
for entry in new_list:
if entry not in old_list:
old_list.append(entry)
return old_list
def read_all_systems(self):
chunks = []
files = glob.glob('*.morph')
for entry in files:
with open(entry, 'r') as f:
morph = yaml.load(f)
if morph['kind'] == 'system':
found_chunks = self.read_all_strata(morph, files)
chunks = self.merge_lists(chunks, found_chunks)
return chunks
def read_all_strata(self, system, files):
chunks = []
for stratum in system['strata']:
morph_file = stratum['morph']+'.morph'
if morph_file not in files:
raise cliapp.AppException('Morph %s not found in this system '
'branch. I am not clever enough to '
'find that, myself' % morph_file)
with open(morph_file, 'r') as f:
stratum_morph = yaml.load(f)
if stratum_morph['kind'] != 'stratum':
raise cliapp.AppException('Morph %s is not a stratum'
% morph_file)
found_chunks = self.read_all_chunks(stratum_morph)
chunks = self.merge_lists(chunks, found_chunks)
return chunks
def read_all_chunks(self, stratum):
return stratum['chunks']
def check_chunk(self, chunk):
chunk_dir = tempfile.mkdtemp()
submodules_file = os.path.join(chunk_dir, '.gitmodules')
expand_repo_output = cliapp.runcmd(['morph', 'expand-repo',
chunk['repo']])
for line in expand_repo_output.splitlines():
if line.startswith('pull:'):
pull_ref = line.split()[1]
break
cliapp.runcmd(['git', 'clone', pull_ref, chunk_dir])
cliapp.runcmd(['git', 'checkout', chunk['ref']], cwd=chunk_dir)
if os.path.exists(submodules_file):
regex = re.compile(r'''
\[submodule\s"(?P<name>.*)"\]\s+
path\s+=\s+(?P<path>\S+)\s+
url\s+=\s+(?P<url>\S+)
''', re.VERBOSE)
self.output.write('Chunk %s has submodules\n' % chunk['name'])
with open(submodules_file, 'r') as f:
submodules_text = f.read()
self.output.write('%s\n' % submodules_text)
submodules = regex.findall(submodules_text)
# Unfortunately, findall returns a list of tuples, not dicts
for submodule in submodules:
tree_data = cliapp.runcmd(['git', 'cat-file', '-p',
'HEAD^{tree}'], cwd=chunk_dir)
for line in tree_data.splitlines():
words = line.split(None, 3)
if words[3] == submodule[2]:
submodule_ref = words[2]
self.check_chunk({'name':submodule[0],
'repo':submodule[2],
'ref':submodule_ref})
shutil.rmtree(chunk_dir)
ReviewGitmodules().run()
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