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community.general/plugins/modules/cpanm.py
Alexei Znamensky b696aa72b2
cpanm: using CmdRunner (#5485) 
* cpanm: using CmdRunner

* add changelog fragment
2022-11-07 20:15:00 +01:00

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (c) 2012, Franck Cuny <franck@lumberjaph.net>
# Copyright (c) 2021, Alexei Znamensky <russoz@gmail.com>
# 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 = '''
---
module: cpanm
short_description: Manages Perl library dependencies.
description:
- Manage Perl library dependencies using cpanminus.
options:
name:
type: str
description:
- The Perl library to install. Valid values change according to the I(mode), see notes for more details.
- Note that for installing from a local path the parameter I(from_path) should be used.
aliases: [pkg]
from_path:
type: path
description:
- The local directory or C(tar.gz) file to install from.
notest:
description:
- Do not run unit tests.
type: bool
default: false
locallib:
description:
- Specify the install base to install modules.
type: path
mirror:
description:
- Specifies the base URL for the CPAN mirror to use.
type: str
mirror_only:
description:
- Use the mirror's index file instead of the CPAN Meta DB.
type: bool
default: false
installdeps:
description:
- Only install dependencies.
type: bool
default: false
version:
description:
- Version specification for the perl module. When I(mode) is C(new), C(cpanm) version operators are accepted.
type: str
executable:
description:
- Override the path to the cpanm executable.
type: path
mode:
description:
- Controls the module behavior. See notes below for more details.
type: str
choices: [compatibility, new]
default: compatibility
version_added: 3.0.0
name_check:
description:
- When in C(new) mode, this parameter can be used to check if there is a module I(name) installed (at I(version), when specified).
type: str
version_added: 3.0.0
notes:
- Please note that U(http://search.cpan.org/dist/App-cpanminus/bin/cpanm, cpanm) must be installed on the remote host.
- "This module now comes with a choice of execution I(mode): C(compatibility) or C(new)."
- "C(compatibility) mode:"
- When using C(compatibility) mode, the module will keep backward compatibility. This is the default mode.
- I(name) must be either a module name or a distribution file.
- >
If the perl module given by I(name) is installed (at the exact I(version) when specified), then nothing happens.
Otherwise, it will be installed using the C(cpanm) executable.
- I(name) cannot be an URL, or a git URL.
- C(cpanm) version specifiers do not work in this mode.
- "C(new) mode:"
- "When using C(new) mode, the module will behave differently"
- >
The I(name) parameter may refer to a module name, a distribution file,
a HTTP URL or a git repository URL as described in C(cpanminus) documentation.
- C(cpanm) version specifiers are recognized.
author:
- "Franck Cuny (@fcuny)"
- "Alexei Znamensky (@russoz)"
'''
EXAMPLES = '''
- name: Install Dancer perl package
community.general.cpanm:
name: Dancer
- name: Install version 0.99_05 of the Plack perl package
community.general.cpanm:
name: MIYAGAWA/Plack-0.99_05.tar.gz
- name: Install Dancer into the specified locallib
community.general.cpanm:
name: Dancer
locallib: /srv/webapps/my_app/extlib
- name: Install perl dependencies from local directory
community.general.cpanm:
from_path: /srv/webapps/my_app/src/
- name: Install Dancer perl package without running the unit tests in indicated locallib
community.general.cpanm:
name: Dancer
notest: true
locallib: /srv/webapps/my_app/extlib
- name: Install Dancer perl package from a specific mirror
community.general.cpanm:
name: Dancer
mirror: 'http://cpan.cpantesters.org/'
- name: Install Dancer perl package into the system root path
become: true
community.general.cpanm:
name: Dancer
- name: Install Dancer if it is not already installed OR the installed version is older than version 1.0
community.general.cpanm:
name: Dancer
version: '1.0'
'''
import os
from ansible_collections.community.general.plugins.module_utils.cmd_runner import CmdRunner, cmd_runner_fmt
from ansible_collections.community.general.plugins.module_utils.module_helper import ModuleHelper
class CPANMinus(ModuleHelper):
output_params = ['name', 'version']
module = dict(
argument_spec=dict(
name=dict(type='str', aliases=['pkg']),
version=dict(type='str'),
from_path=dict(type='path'),
notest=dict(type='bool', default=False),
locallib=dict(type='path'),
mirror=dict(type='str'),
mirror_only=dict(type='bool', default=False),
installdeps=dict(type='bool', default=False),
executable=dict(type='path'),
mode=dict(type='str', choices=['compatibility', 'new'], default='compatibility'),
name_check=dict(type='str')
),
required_one_of=[('name', 'from_path')],
)
command = 'cpanm'
command_args_formats = dict(
notest=cmd_runner_fmt.as_bool("--notest"),
locallib=cmd_runner_fmt.as_opt_val('--local-lib'),
mirror=cmd_runner_fmt.as_opt_val('--mirror'),
mirror_only=cmd_runner_fmt.as_bool("--mirror-only"),
installdeps=cmd_runner_fmt.as_bool("--installdeps"),
pkg_spec=cmd_runner_fmt.as_list(),
)
def __init_module__(self):
v = self.vars
if v.mode == "compatibility":
if v.name_check:
self.do_raise("Parameter name_check can only be used with mode=new")
else:
if v.name and v.from_path:
self.do_raise("Parameters 'name' and 'from_path' are mutually exclusive when 'mode=new'")
self.command = self.module.get_bin_path(v.executable if v.executable else self.command)
self.vars.set("binary", self.command)
def _is_package_installed(self, name, locallib, version):
def process(rc, out, err):
return rc == 0
if name is None or name.endswith('.tar.gz'):
return False
version = "" if version is None else " " + version
env = {"PERL5LIB": "%s/lib/perl5" % locallib} if locallib else {}
runner = CmdRunner(self.module, ["perl", "-le"], {"mod": cmd_runner_fmt.as_list()}, check_rc=False, environ_update=env)
with runner("mod", output_process=process) as ctx:
return ctx.run(mod='use %s%s;' % (name, version))
def sanitize_pkg_spec_version(self, pkg_spec, version):
if version is None:
return pkg_spec
if pkg_spec.endswith('.tar.gz'):
self.do_raise(msg="parameter 'version' must not be used when installing from a file")
if os.path.isdir(pkg_spec):
self.do_raise(msg="parameter 'version' must not be used when installing from a directory")
if pkg_spec.endswith('.git'):
if version.startswith('~'):
self.do_raise(msg="operator '~' not allowed in version parameter when installing from git repository")
version = version if version.startswith('@') else '@' + version
elif version[0] not in ('@', '~'):
version = '~' + version
return pkg_spec + version
def __run__(self):
def process(rc, out, err):
if self.vars.mode == "compatibility" and rc != 0:
self.do_raise(msg=err, cmd=self.vars.cmd_args)
return 'is up to date' not in err and 'is up to date' not in out
runner = CmdRunner(self.module, self.command, self.command_args_formats, check_rc=True)
v = self.vars
pkg_param = 'from_path' if v.from_path else 'name'
if v.mode == 'compatibility':
if self._is_package_installed(v.name, v.locallib, v.version):
return
pkg_spec = v[pkg_param]
else:
installed = self._is_package_installed(v.name_check, v.locallib, v.version) if v.name_check else False
if installed:
return
pkg_spec = self.sanitize_pkg_spec_version(v[pkg_param], v.version)
with runner(['notest', 'locallib', 'mirror', 'mirror_only', 'installdeps', 'pkg_spec'], output_process=process) as ctx:
self.changed = ctx.run(pkg_spec=pkg_spec)
def main():
CPANMinus.execute()
if __name__ == '__main__':
main()
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