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community.general/plugins/lookup/collection_version.py
Felix Fontein 123c7efe5e
Move licenses to LICENSES/, run add-license.py, add LICENSES/MIT.txt (#5065)
* Move licenses to LICENSES/, run add-license.py, add LICENSES/MIT.txt.

* Replace 'Copyright:' with 'Copyright'

sed -i 's|Copyright:\(.*\)|Copyright\1|' $(rg -l 'Copyright:')

Co-authored-by: Maxwell G <gotmax@e.email>
2022-08-05 12:28:29 +02:00

139 lines
4.8 KiB
Python

# (c) 2021, Felix Fontein <felix@fontein.de>
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = """
name: collection_version
author: Felix Fontein (@felixfontein)
version_added: "4.0.0"
short_description: Retrieves the version of an installed collection
description:
- This lookup allows to query the version of an installed collection, and to determine whether a
collection is installed at all.
- By default it returns C(none) for non-existing collections and C(*) for collections without a
version number. The latter should only happen in development environments, or when installing
a collection from git which has no version in its C(galaxy.yml). This behavior can be adjusted
by providing other values with I(result_not_found) and I(result_no_version).
options:
_terms:
description:
- The collections to look for.
- For example C(community.general).
type: list
elements: str
required: true
result_not_found:
description:
- The value to return when the collection could not be found.
- By default, C(none) is returned.
type: string
default: ~
result_no_version:
description:
- The value to return when the collection has no version number.
- This can happen for collections installed from git which do not have a version number
in C(galaxy.yml).
- By default, C(*) is returned.
type: string
default: '*'
"""
EXAMPLES = """
- name: Check version of community.general
ansible.builtin.debug:
msg: "community.general version {{ lookup('community.general.collection_version', 'community.general') }}"
"""
RETURN = """
_raw:
description:
- The version number of the collections listed as input.
- If a collection can not be found, it will return the value provided in I(result_not_found).
By default, this is C(none).
- If a collection can be found, but the version not identified, it will return the value provided in
I(result_no_version). By default, this is C(*). This can happen for collections installed
from git which do not have a version number in C(galaxy.yml).
type: list
elements: str
"""
import json
import os
import re
import yaml
from ansible.errors import AnsibleLookupError
from ansible.module_utils.compat.importlib import import_module
from ansible.plugins.lookup import LookupBase
FQCN_RE = re.compile(r'^[A-Za-z0-9_]+\.[A-Za-z0-9_]+$')
def load_collection_meta_manifest(manifest_path):
with open(manifest_path, 'rb') as f:
meta = json.load(f)
return {
'version': meta['collection_info']['version'],
}
def load_collection_meta_galaxy(galaxy_path, no_version='*'):
with open(galaxy_path, 'rb') as f:
meta = yaml.safe_load(f)
return {
'version': meta.get('version') or no_version,
}
def load_collection_meta(collection_pkg, no_version='*'):
path = os.path.dirname(collection_pkg.__file__)
# Try to load MANIFEST.json
manifest_path = os.path.join(path, 'MANIFEST.json')
if os.path.exists(manifest_path):
return load_collection_meta_manifest(manifest_path)
# Try to load galaxy.y(a)ml
galaxy_path = os.path.join(path, 'galaxy.yml')
galaxy_alt_path = os.path.join(path, 'galaxy.yaml')
# galaxy.yaml was only supported in ansible-base 2.10 and ansible-core 2.11. Support was removed
# in https://github.com/ansible/ansible/commit/595413d11346b6f26bb3d9df2d8e05f2747508a3 for
# ansible-core 2.12.
for path in (galaxy_path, galaxy_alt_path):
if os.path.exists(path):
return load_collection_meta_galaxy(path, no_version=no_version)
return {}
class LookupModule(LookupBase):
def run(self, terms, variables=None, **kwargs):
result = []
self.set_options(var_options=variables, direct=kwargs)
not_found = self.get_option('result_not_found')
no_version = self.get_option('result_no_version')
for term in terms:
if not FQCN_RE.match(term):
raise AnsibleLookupError('"{term}" is not a FQCN'.format(term=term))
try:
collection_pkg = import_module('ansible_collections.{fqcn}'.format(fqcn=term))
except ImportError:
# Collection not found
result.append(not_found)
continue
try:
data = load_collection_meta(collection_pkg, no_version=no_version)
except Exception as exc:
raise AnsibleLookupError('Error while loading metadata for {fqcn}: {error}'.format(fqcn=term, error=exc))
result.append(data.get('version', no_version))
return result