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############################################################################## |
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# |
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# Copyright (c) 2006 Zope Foundation and Contributors. |
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# All Rights Reserved. |
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# |
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# This software is subject to the provisions of the Zope Public License, |
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# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. |
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# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED |
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# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS |
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# FOR A PARTICULAR PURPOSE. |
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# |
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############################################################################## |
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"""Bootstrap a buildout-based project |
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Simply run this script in a directory containing a buildout.cfg. |
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The script accepts buildout command-line options, so you can |
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use the -c option to specify an alternate configuration file. |
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""" |
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import os |
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import shutil |
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import sys |
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import tempfile |
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from optparse import OptionParser |
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tmpeggs = tempfile.mkdtemp() |
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usage = '''\ |
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[DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options] |
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Bootstraps a buildout-based project. |
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Simply run this script in a directory containing a buildout.cfg, using the |
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Python that you want bin/buildout to use. |
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Note that by using --find-links to point to local resources, you can keep |
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this script from going over the network. |
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''' |
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parser = OptionParser(usage=usage) |
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parser.add_option("-v", "--version", help="use a specific zc.buildout version") |
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parser.add_option("-t", "--accept-buildout-test-releases", |
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dest='accept_buildout_test_releases', |
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action="store_true", default=False, |
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help=("Normally, if you do not specify a --version, the " |
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"bootstrap script and buildout gets the newest " |
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"*final* versions of zc.buildout and its recipes and " |
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"extensions for you. If you use this flag, " |
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"bootstrap and buildout will get the newest releases " |
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"even if they are alphas or betas.")) |
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parser.add_option("-c", "--config-file", |
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help=("Specify the path to the buildout configuration " |
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"file to be used.")) |
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parser.add_option("-f", "--find-links", |
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help=("Specify a URL to search for buildout releases")) |
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parser.add_option("--allow-site-packages", |
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action="store_true", default=False, |
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help=("Let bootstrap.py use existing site packages")) |
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parser.add_option("--setuptools-version", |
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help="use a specific setuptools version") |
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options, args = parser.parse_args() |
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###################################################################### |
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# load/install setuptools |
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try: |
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if options.allow_site_packages: |
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import setuptools |
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import pkg_resources |
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from urllib.request import urlopen |
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except ImportError: |
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from urllib2 import urlopen |
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ez = {} |
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exec(urlopen('https://bootstrap.pypa.io/ez_setup.py').read(), ez) |
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if not options.allow_site_packages: |
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# ez_setup imports site, which adds site packages |
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# this will remove them from the path to ensure that incompatible versions |
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# of setuptools are not in the path |
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import site |
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# inside a virtualenv, there is no 'getsitepackages'. |
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# We can't remove these reliably |
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if hasattr(site, 'getsitepackages'): |
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for sitepackage_path in site.getsitepackages(): |
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sys.path[:] = [x for x in sys.path if sitepackage_path not in x] |
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setup_args = dict(to_dir=tmpeggs, download_delay=0) |
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if options.setuptools_version is not None: |
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setup_args['version'] = options.setuptools_version |
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ez['use_setuptools'](**setup_args) |
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import setuptools |
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import pkg_resources |
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# This does not (always?) update the default working set. We will |
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# do it. |
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for path in sys.path: |
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if path not in pkg_resources.working_set.entries: |
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pkg_resources.working_set.add_entry(path) |
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###################################################################### |
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# Install buildout |
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ws = pkg_resources.working_set |
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cmd = [sys.executable, '-c', |
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'from setuptools.command.easy_install import main; main()', |
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'-mZqNxd', tmpeggs] |
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find_links = os.environ.get( |
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'bootstrap-testing-find-links', |
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options.find_links or |
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('http://downloads.buildout.org/' |
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if options.accept_buildout_test_releases else None) |
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) |
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if find_links: |
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cmd.extend(['-f', find_links]) |
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setuptools_path = ws.find( |
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pkg_resources.Requirement.parse('setuptools')).location |
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requirement = 'zc.buildout' |
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version = options.version |
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if version is None and not options.accept_buildout_test_releases: |
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# Figure out the most recent final version of zc.buildout. |
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import setuptools.package_index |
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_final_parts = '*final-', '*final' |
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def _final_version(parsed_version): |
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try: |
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return not parsed_version.is_prerelease |
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except AttributeError: |
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# Older setuptools |
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for part in parsed_version: |
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if (part[:1] == '*') and (part not in _final_parts): |
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return False |
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return True |
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index = setuptools.package_index.PackageIndex( |
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search_path=[setuptools_path]) |
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if find_links: |
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index.add_find_links((find_links,)) |
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req = pkg_resources.Requirement.parse(requirement) |
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if index.obtain(req) is not None: |
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best = [] |
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bestv = None |
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for dist in index[req.project_name]: |
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distv = dist.parsed_version |
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if _final_version(distv): |
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if bestv is None or distv > bestv: |
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best = [dist] |
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bestv = distv |
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elif distv == bestv: |
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best.append(dist) |
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if best: |
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best.sort() |
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version = best[-1].version |
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if version: |
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requirement = '=='.join((requirement, version)) |
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cmd.append(requirement) |
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import subprocess |
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if subprocess.call(cmd, env=dict(os.environ, PYTHONPATH=setuptools_path)) != 0: |
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raise Exception( |
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"Failed to execute command:\n%s" % repr(cmd)[1:-1]) |
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###################################################################### |
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# Import and run buildout |
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ws.add_entry(tmpeggs) |
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ws.require(requirement) |
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import zc.buildout.buildout |
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if not [a for a in args if '=' not in a]: |
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args.append('bootstrap') |
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# if -c was provided, we push it back into args for buildout' main function |
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if options.config_file is not None: |
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args[0:0] = ['-c', options.config_file] |
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zc.buildout.buildout.main(args) |
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shutil.rmtree(tmpeggs) |
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useblocks /
groundwork
