diff options
Diffstat (limited to 'morphlib/util.py')
| -rw-r--r-- | morphlib/util.py | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/morphlib/util.py b/morphlib/util.py index 0c3291c2..857a833d 100644 --- a/morphlib/util.py +++ b/morphlib/util.py @@ -25,6 +25,8 @@ import subprocess import textwrap import tempfile import sys +import yaml +import jsonschema import fs.osfs @@ -780,7 +782,47 @@ class ProgressBar(object): sys.stderr.flush() -def schemas_directory(version): # pragma: no cover +def schemas_directory(version=None): # pragma: no cover '''Returns a path to the schemas/ subdirectory of the 'morphlib' module.''' + if not version: + version = morphlib.definitions_version.SUPPORTED_VERSIONS[-1] code_dir = os.path.dirname(morphlib.__file__) return os.path.join(code_dir, 'schemas', str(version)) + +def read_schemas(version=None): # pragma: no cover + schemas = {} + schemas_dir = schemas_directory(version) + for f in os.listdir(schemas_dir): + kind, ext = os.path.splitext(f) + if ext == '.json-schema': + with open(os.path.join(schemas_dir, f)) as ff: + schemas[kind] = yaml.load(ff) + return schemas + +def validate_json(json, schema, filename): # pragma: no cover + + def path_to_string(path): + basename, _ = os.path.splitext( + os.path.basename(filename)) + if basename != filename: + path_str = '{filename}: {basename}'.format(filename=filename, + basename=basename) + else: + path_str = '{filename}'.format(filename=filename) + for p in path: + if isinstance(p, basestring): + path_str += '->{subpath}'.format(subpath=p) + else: + path_str += '[{index}]'.format(index=p) + return path_str + + try: + jsonschema.validate(json, schema) + except jsonschema.ValidationError as e: + path_str = path_to_string(e.path) + instance = '' + if isinstance(e.instance, dict) and e.instance != json: + instance = ' on %s' % e.instance + return '{path}: {message}{instance}'.format(path=path_str, + message=e.message, + instance=instance) |