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# Copyright (C) 2014-2016 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, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-2 =*=
import yaml
import os
from app import chdir, config, log
from defaults import Defaults
def is_not_hidden_dir(d):
return not d.startswith('.')
class Morphs(object):
def __init__(self, directory='.'):
'''Load all definitions from a directory tree.'''
self._data = {}
self.defaults = Defaults()
self.fields = self.defaults.build_steps + self.defaults.fields
with chdir(directory):
for outer_dirname, dirnames, filenames in os.walk('.'):
dirnames[:] = filter(is_not_hidden_dir, dirnames)
filenames.sort()
dirnames.sort()
for filename in filenames:
if filename.endswith('.morph'):
path = os.path.join(outer_dirname, filename)
data = self._load(path)
if data is not None:
data['path'] = self._demorph(path[2:])
self._fix_keys(data)
self._tidy_and_insert_recursively(data)
for x in self._data:
dn = self._data[x]
for field in dn:
if field not in self.fields:
log(dn, 'Invalid field "%s" in' % field, dn['path'],
exit=True)
def _load(self, path):
'''Load a single definition file as a dict.
The file is assumed to be yaml, and we insert the provided path into
the dict keyed as 'path'.
'''
try:
with open(path) as f:
text = f.read()
contents = yaml.safe_load(text)
except yaml.YAMLError, exc:
log('DEFINITIONS', 'Could not parse %s' % path, exc, exit=True)
if type(contents) is not dict:
log('DEFINITIONS', 'WARNING: %s contents is not dict:' % path,
str(contents)[0:50])
return None
return contents
def _tidy_and_insert_recursively(self, dn):
'''Insert a definition and its contents into the dictionary.
Takes a dict containing the content of a definition file.
Inserts the definitions referenced or defined in the
'build-depends' and 'contents' keys of `definition` into the
dictionary, and then inserts `definition` itself into the
dictionary.
'''
# handle morph syntax oddities...
for index, component in enumerate(dn.get('build-depends', [])):
self._fix_keys(component)
dn['build-depends'][index] = self._insert(component)
# The 'contents' field in the internal data model corresponds to the
# 'chunks' field in a stratum .morph file, or the 'strata' field in a
# system .morph file.
dn['contents'] = dn.get('contents', [])
if type(dn.get('chunks', [])) is not list:
log('DEFINITIONS', 'WARNING: %s chunks must be list:' % dn['path'],
dn.get('chunks', []), exit=True)
if type(dn.get('strata', [])) is not list:
log('DEFINITIONS', 'WARNING: %s strata must be list:' % dn['path'],
dn.get('strata', []), exit=True)
dn['contents'] += dn.pop('chunks', []) + dn.pop('strata', [])
lookup = {}
for index, component in enumerate(dn['contents']):
self._fix_keys(component, dn['path'])
lookup[component['name']] = component['path']
if component['name'] == dn['name']:
log(dn, 'WARNING: %s contains' % dn['path'], dn['name'])
for x, it in enumerate(component.get('build-depends', [])):
if it not in lookup:
# it is defined as a build depend, but hasn't actually been
# defined yet...
dependency = {'name': it}
self._fix_keys(dependency, dn['path'])
lookup[it] = dependency['path']
component['build-depends'][x] = lookup[it]
component['build-depends'] = (dn.get('build-depends', []) +
component.get('build-depends', []))
if config.get('artifact-version', 0) not in range(0, 5):
c = self._data.get(component['path'])
if c and 'build-depends' in c:
component['build-depends'] += c['build-depends']
splits = component.get('artifacts', [])
dn['contents'][index] = {self._insert(component): splits}
return self._insert(dn)
def _fix_keys(self, dn, base=None):
'''Normalizes keys for a definition dict and its contents
Some definitions have a 'morph' field which is a relative path. Others
only have a 'name' field, which has no directory part. A few do not
have a 'name'
This sets our key to be 'path', and fixes any missed 'name' to be
the same as 'path' but replacing '/' by '-'
'''
exit = (config.get('check-definitions') == 'exit')
if dn.get('morph'):
if not os.path.isfile(dn.get('morph')):
log('DEFINITION', 'WARNING: missing', dn['morph'], exit=exit)
dn['path'] = self._demorph(dn.pop('morph'))
if 'path' not in dn:
if 'name' not in dn:
log(dn, 'No path, no name?', exit=True)
if config.get('artifact-version', 0) in range(0, 4):
dn['path'] = dn['name']
else:
dn['path'] = os.path.join(self._demorph(base), dn['name'])
if os.path.isfile(dn['path'] + '.morph'):
# morph file exists, but is not mentioned in stratum
# so we ignore it
log(dn, 'WARNING: ignoring', dn['path'] + '.morph',
exit=exit)
dn['path'] += '.default'
dn['path'] = self._demorph(dn['path'])
dn.setdefault('name', os.path.basename(dn['path']))
if dn.get('name') == config['target']:
config['target'] = dn['path']
n = self._demorph(os.path.basename(dn['name']))
p = self._demorph(os.path.basename(dn['path']))
if os.path.splitext(p)[0] not in n:
log('MORPHS', 'WARNING: %s wrong name' % dn['path'], dn['name'],
exit=exit)
for system in (dn.get('systems', []) + dn.get('subsystems', [])):
self._fix_keys(system)
def _insert(self, new_def):
'''Insert a new definition into the dictionary, return the key.
Takes a dict representing a single definition.
If a definition with the same 'path' doesn't exist, just add
`new_def` to the dictionary.
If a definition with the same 'path' already exists, extend the
existing definition with the contents of `new_def` unless it
and the new definition both contain a 'ref'. If any keys are
duplicated in the existing definition, output a warning.
If `new_def` contains a sha: field (which needs to be 40 chars),
this overrides ref: field
'''
exit = (config.get('check-definitions') == 'exit')
dn = self._data.get(new_def['path'])
if dn:
if (dn.get('ref') is None or new_def.get('ref') is None):
for key in new_def:
if key is not 'name':
dn[key] = new_def[key]
if dn['name'] != new_def['name']:
log(new_def, 'WARNING: %s also named as' % new_def['name'],
dn['name'], exit=exit)
dn['name'] = new_def['name']
for key in new_def:
if dn.get(key) and new_def[key] and dn[key] != new_def[key]:
log(new_def,
'WARNING: multiple definitions of %s \n' % key,
'%s | %s' % (dn.get(key), new_def[key]), exit=exit)
sha = new_def.get('sha')
if sha:
if len(sha) != 40:
log(new_def, 'ERROR: invalid sha:', sha, exit=True)
if new_def.get('ref'):
if not sha and len(new_def['ref']) != 40:
log(new_def, 'WARNING: ref is not a sha:', new_def['ref'],
exit=False)
if new_def.get('unpetrify-ref'):
log(new_def, 'WARNING: \'unpetrify-ref\' is a deprecated field',
exit=False)
if new_def.get('rpm-metadata'):
# Support two formats of 'rpm-metadata', the older
# format specifies 'rpm-metadata' as a list of packages,
# the new format specifies 'rpm-metadata' as a dictionary
# and the package list is found in it's 'packages' member.
if isinstance(new_def['rpm-metadata'], list):
new_def['rpm-metadata'] = {'packages': new_def['rpm-metadata']}
if dn is None:
self._data[new_def['path']] = new_def
return new_def['path']
def _demorph(self, path):
if config.get('artifact-version', 0) not in range(0, 4):
if path.endswith('.morph'):
path = path.rpartition('.morph')[0]
return path
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