074967852b
Some projects have a setup.cfg included, but don't have metadata with the package name in it. In this case, skip on to finding it via setup.py Change-Id: I9339ac86832994b9f7f706c99e07441fc120b25a
292 lines
11 KiB
Python
292 lines
11 KiB
Python
#!/usr/bin/python
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# Copyright (c) 2017 Red Hat
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#
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# This module is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This software is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this software. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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DOCUMENTATION = '''
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---
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module: tox_install_sibling_packages
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short_description: Install packages needed by tox that have local git versions
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author: Monty Taylor (@mordred)
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description:
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- Looks for git repositories that zuul has placed on the system that provide
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python packages needed by package tox is testing. If if finds any, it will
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install them into the tox virtualenv so that subsequent runs of tox will
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use the provided git versions.
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requirements:
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- "python >= 3.5"
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options:
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tox_envlist:
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description:
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- The tox environment to operate in.
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required: true
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type: str
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project_dir:
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description:
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- The directory in which the project we care about is in.
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required: true
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type: str
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projects:
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description:
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- A list of project dicts that zuul knows about
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required: true
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type: list
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'''
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try:
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import configparser
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except ImportError:
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import ConfigParser as configparser
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import pkg_resources as prAPI
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import os
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import subprocess
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import tempfile
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import traceback
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from ansible.module_utils.basic import AnsibleModule
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log = list()
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def get_sibling_python_packages(projects, tox_python):
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'''Finds all python packages that zuul has cloned.
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If someone does a require_project: and then runs a tox job, it can be
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assumed that what they want to do is to test the two together.
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'''
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packages = {}
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for project in projects:
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root = project['src_dir']
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package_name = None
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setup_cfg = os.path.join(root, 'setup.cfg')
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found_python = False
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if os.path.exists(setup_cfg):
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found_python = True
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c = configparser.ConfigParser()
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c.read(setup_cfg)
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try:
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package_name = c.get('metadata', 'name')
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packages[package_name] = root
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except Exception:
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# Some things have a setup.cfg, but don't keep
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# metadata in it; fall back to setup.py below
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log.append(
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"[metadata] name not found in %s, skipping" % setup_cfg)
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if not package_name and os.path.exists(os.path.join(root, 'setup.py')):
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found_python = True
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# It's a python package but doesn't use pbr, so we need to run
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# python setup.py --name to get setup.py to tell us what the
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# package name is.
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package_name = subprocess.check_output(
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[os.path.abspath(tox_python), 'setup.py', '--name'],
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cwd=os.path.abspath(root))
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if package_name:
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package_name = package_name.strip()
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packages[package_name] = root
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if found_python and not package_name:
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log.append(
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"Could not find package name for {root}".format(
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root=root))
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return packages
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def get_installed_packages(tox_python):
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# We use the output of pip freeze here as that is pip's stable public
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# interface.
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frozen_pkgs = subprocess.check_output(
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[tox_python, '-m', 'pip', '-qqq', 'freeze']
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)
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# Matches strings of the form:
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# 1. '<package_name>==<version>'
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# 2. '# Editable Git install with no remote (<package_name>==<version>)'
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# both results: <package_name>
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return [x[x.find('(') + 1:].split('==')[0]
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for x in frozen_pkgs.split('\n') if '==' in x]
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def write_new_constraints_file(constraints, packages):
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with tempfile.NamedTemporaryFile(delete=False) as constraints_file:
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constraints_lines = open(constraints, 'r').read().split('\n')
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for line in constraints_lines:
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package_name = line.split('===')[0]
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if package_name in packages:
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continue
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constraints_file.write(line)
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constraints_file.write('\n')
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return constraints_file.name
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def _get_package_root(name, sibling_packages):
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'''
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Returns a package root from the sibling packages dict.
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If name is not found in sibling_packages, tries again using the 'filename'
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form of the name returned by the setuptools package resource API.
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:param name: package name
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:param sibling_packages: dict of python packages that zuul has cloned
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:returns: the package root (str)
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:raises: KeyError
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'''
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try:
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pkg_root = sibling_packages[name]
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except KeyError:
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pkg_root = sibling_packages[prAPI.to_filename(name)]
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return pkg_root
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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tox_envlist=dict(required=True, type='str'),
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tox_constraints_file=dict(type='str'),
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project_dir=dict(required=True, type='str'),
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projects=dict(required=True, type='list'),
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)
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)
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envlist = module.params['tox_envlist']
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constraints = module.params.get('tox_constraints_file')
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project_dir = module.params['project_dir']
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projects = module.params['projects']
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if not os.path.exists(os.path.join(project_dir, 'setup.cfg')):
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module.exit_json(changed=False, msg="No setup.cfg, no action needed")
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if constraints and not os.path.exists(constraints):
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module.fail_json(msg="Constraints file {constraints} was not found")
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# Who are we?
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try:
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c = configparser.ConfigParser()
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c.read(os.path.join(project_dir, 'setup.cfg'))
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package_name = c.get('metadata', 'name')
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except Exception:
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module.exit_json(
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changed=False, msg="No name in setup.cfg, skipping siblings")
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envdir = '{project_dir}/.tox/{envlist}'.format(
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project_dir=project_dir, envlist=envlist)
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if not os.path.exists(envdir):
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module.exit_json(
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changed=False, msg="envdir does not exist, skipping siblings")
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tox_python = '{envdir}/bin/python'.format(envdir=envdir)
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# Write a log file into the .tox dir so that it'll get picked up
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# Name it with envlist as a prefix so that fetch-tox-output will properly
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# get it in a multi-env scenario
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log_dir = '{envdir}/log'.format(envdir=envdir)
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log_file = '{log_dir}/{envlist}-siblings.txt'.format(
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log_dir=log_dir, envlist=envlist)
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log.append(
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"Processing siblings for {name} from {project_dir}".format(
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name=package_name,
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project_dir=project_dir))
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changed = False
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try:
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sibling_python_packages = get_sibling_python_packages(
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projects, tox_python)
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for name, root in sibling_python_packages.items():
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log.append("Sibling {name} at {root}".format(name=name, root=root))
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found_sibling_packages = []
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for dep_name in get_installed_packages(tox_python):
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log.append(
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"Found {name} python package installed".format(
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name=dep_name))
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if (dep_name == package_name or
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prAPI.to_filename(dep_name) == package_name):
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# We don't need to re-process ourself. We've filtered ourselves
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# from the source dir list, but let's be sure nothing is weird.
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log.append(
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"Skipping {name} because it's us".format(
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name=dep_name))
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continue
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if dep_name in sibling_python_packages:
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log.append(
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"Package {name} on system in {root}".format(
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name=dep_name,
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root=sibling_python_packages[dep_name]))
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changed = True
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found_sibling_packages.append(dep_name)
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elif prAPI.to_filename(dep_name) in sibling_python_packages:
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real_name = prAPI.to_filename(dep_name)
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log.append(
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"Package {name} ({pkg_name}) on system in {root}".format(
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name=dep_name,
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pkg_name=real_name,
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root=sibling_python_packages[real_name]))
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changed = True
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# need to use dep_name here for later constraint file rewrite
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found_sibling_packages.append(dep_name)
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if constraints:
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constraints_file = write_new_constraints_file(
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constraints, found_sibling_packages)
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for sibling_package in found_sibling_packages:
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log.append("Uninstalling {name}".format(name=sibling_package))
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uninstall_output = subprocess.check_output(
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[tox_python, '-m',
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'pip', 'uninstall', '-y', sibling_package],
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stderr=subprocess.STDOUT)
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log.extend(uninstall_output.decode('utf-8').split('\n'))
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args = [tox_python, '-m', 'pip', 'install']
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if constraints:
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args.extend(['-c', constraints_file])
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pkg_root = _get_package_root(sibling_package,
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sibling_python_packages)
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log.append(
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"Installing {name} from {root} for deps".format(
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name=sibling_package,
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root=pkg_root))
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args.append(pkg_root)
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install_output = subprocess.check_output(args)
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log.extend(install_output.decode('utf-8').split('\n'))
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for sibling_package in found_sibling_packages:
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pkg_root = _get_package_root(sibling_package,
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sibling_python_packages)
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log.append(
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"Installing {name} from {root}".format(
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name=sibling_package,
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root=pkg_root))
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install_output = subprocess.check_output(
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[tox_python, '-m', 'pip', 'install', '--no-deps',
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pkg_root])
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log.extend(install_output.decode('utf-8').split('\n'))
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except Exception as e:
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tb = traceback.format_exc()
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log.append(str(e))
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log.append(tb)
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module.fail_json(msg=str(e), log="\n".join(log))
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finally:
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log_text = "\n".join(log)
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module.append_to_file(log_file, log_text)
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module.exit_json(changed=changed, msg=log_text)
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if __name__ == '__main__':
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main()
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