cc343a4376
* Using docstrings conflicts with the standard use of docstrings * PYTHON_OPTIMIZE=2 will omit docstrings. Using docstrings makes future changes to the plugin and module code subject to the requirement that we ensure it won't be run with optimization.
81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
# Copyright (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import ast
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import yaml
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from ansible.parsing.metadata import extract_metadata
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from ansible.parsing.yaml.loader import AnsibleLoader
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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def read_docstring(filename, verbose=True, ignore_errors=True):
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"""
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Search for assignment of the DOCUMENTATION and EXAMPLES variables in the given file.
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Parse DOCUMENTATION from YAML and return the YAML doc or None together with EXAMPLES, as plain text.
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"""
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data = {
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'doc': None,
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'plainexamples': None,
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'returndocs': None,
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'metadata': None
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}
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string_to_vars = {
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'DOCUMENTATION': 'doc',
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'EXAMPLES': 'plainexamples',
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'RETURN': 'returndocs',
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}
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try:
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b_module_data = open(filename, 'rb').read()
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M = ast.parse(b_module_data)
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for child in M.body:
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if isinstance(child, ast.Assign):
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for t in child.targets:
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try:
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theid = t.id
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except AttributeError:
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# skip errors can happen when trying to use the normal code
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display.warning("Failed to assign id for %s on %s, skipping" % (t, filename))
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continue
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if theid in string_to_vars:
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varkey = string_to_vars[theid]
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if isinstance(child.value, ast.Dict):
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data[varkey] = ast.literal_eval(child.value)
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else:
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if theid == 'DOCUMENTATION':
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# string should be yaml
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data[varkey] = AnsibleLoader(child.value.s, file_name=filename).get_single_data()
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else:
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# not yaml, should be a simple string
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data[varkey] = child.value.s
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display.debug('assigned :%s' % varkey)
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# Metadata is per-file and a dict rather than per-plugin/function and yaml
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data['metadata'] = extract_metadata(module_ast=M)[0]
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# remove version
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if data['metadata']:
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for x in ('version', 'metadata_version'):
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if x in data['metadata']:
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del data['metadata'][x]
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except:
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if verbose:
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display.error("unable to parse %s" % filename)
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if not ignore_errors:
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raise
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return data
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