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# Copyright (C) 2014 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.
#
# =*= License: GPL-2 =*=
import yaml
import os
import yapp
import cache
from subprocess import check_output
class Definitions():
__definitions = []
__trees = {}
def __init__(self):
''' Load all definitions from `cwd` tree. '''
if self.__definitions != []:
return
for dirname, dirnames, filenames in os.walk(os.getcwd()):
for filename in filenames:
if not (filename.endswith('.def') or
filename.endswith('.morph')):
continue
this = self._load(dirname, filename)
name = self.lookup(this, 'name')
if this.get('name'):
self._insert(this)
for dependency in self.lookup(this, 'build-depends'):
if self.lookup(dependency, 'repo') != []:
self._insert(dependency)
for component in (self.lookup(this, 'contents') +
self.lookup(this, 'chunks') +
self.lookup(this, 'strata')):
component['build-depends'] = (
self.lookup(component, 'build-depends'))
for dependency in self.lookup(this, 'build-depends'):
component['build-depends'].extend(
[self.lookup(dependency, 'name')])
self._insert(component)
if '.git' in dirnames:
dirnames.remove('.git')
try:
self.__trees = self._load(os.getcwd(), ".trees")
for definition in self.__definitions:
definition['tree'] = self.__trees.get(definition['name'])
except Exception, e:
return
def _load(self, path, name):
''' Load a single definition file, and create a hash for it. '''
try:
filename = os.path.join(path, name)
with open(filename) as f:
text = f.read()
definition = yaml.safe_load(text)
except ValueError:
flog(this, 'ERROR: problem loading', filename)
return definition
def _insert(self, this):
for i, definition in enumerate(self.__definitions):
if definition['name'] == this['name']:
if (self.lookup(definition, 'ref') == []
or self.lookup(this, 'ref') == []):
for key in this:
definition[key] = this[key]
return
for key in this:
if key == 'build-depends' or key == 'morph':
continue
if definition.get(key) != this[key]:
yapp.log(this, 'WARNING: multiple definitions of', key)
yapp.log(this, '%s | %s' % (definition.get(key),
this[key]))
self.__definitions.append(this)
def get(self, this):
for definition in self.__definitions:
if (definition['name'] == this or
definition['name'] == self.lookup(this, 'name')):
return definition
yapp.log(this, 'ERROR: no definition found for', this)
raise SystemExit
def lookup(self, thing, value):
''' Look up value from thing, return [] if none. '''
val = []
try:
val = thing[value]
except Exception, e:
pass
return val
def version(self, this):
try:
return this['name'].split('@')[1]
except Exception, e:
return False
def save_trees(self):
self.__trees = {}
for definition in self.__definitions:
if definition.get('tree') is not None:
self.__trees[definition['name']] = definition.get('tree')
with open(os.path.join(os.getcwd(), '.trees'), 'w') as f:
f.write(yaml.dump(self.__trees, default_flow_style=False))
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