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MANIFEST.in

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  • bootstrap-buildout.py 7.29 KiB
    ##############################################################################
    #
    # Copyright (c) 2006 Zope Foundation and Contributors.
    # All Rights Reserved.
    #
    # This software is subject to the provisions of the Zope Public License,
    # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
    # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
    # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
    # FOR A PARTICULAR PURPOSE.
    #
    ##############################################################################
    """Bootstrap a buildout-based project
    
    Simply run this script in a directory containing a buildout.cfg.
    The script accepts buildout command-line options, so you can
    use the -c option to specify an alternate configuration file.
    """
    
    import os
    import shutil
    import sys
    import tempfile
    
    from optparse import OptionParser
    
    __version__ = '2015-07-01'
    # See zc.buildout's changelog if this version is up to date.
    
    tmpeggs = tempfile.mkdtemp(prefix='bootstrap-')
    
    usage = '''\
    [DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options]
    
    Bootstraps a buildout-based project.
    
    Simply run this script in a directory containing a buildout.cfg, using the
    Python that you want bin/buildout to use.
    
    Note that by using --find-links to point to local resources, you can keep
    this script from going over the network.
    '''
    
    parser = OptionParser(usage=usage)
    parser.add_option("--version",
                      action="store_true", default=False,
                      help=("Return bootstrap.py version."))
    parser.add_option("-t", "--accept-buildout-test-releases",
                      dest='accept_buildout_test_releases',
                      action="store_true", default=False,
                      help=("Normally, if you do not specify a --buildout-version, "
                            "the bootstrap script and buildout gets the newest "
                            "*final* versions of zc.buildout and its recipes and "
                            "extensions for you.  If you use this flag, "
                            "bootstrap and buildout will get the newest releases "
                            "even if they are alphas or betas."))
    parser.add_option("-c", "--config-file",
                      help=("Specify the path to the buildout configuration "
                            "file to be used."))
    parser.add_option("-f", "--find-links",
                      help=("Specify a URL to search for buildout releases"))
    parser.add_option("--allow-site-packages",
                      action="store_true", default=False,
                      help=("Let bootstrap.py use existing site packages"))
    parser.add_option("--buildout-version",
                      help="Use a specific zc.buildout version")
    parser.add_option("--setuptools-version",
                      help="Use a specific setuptools version")
    parser.add_option("--setuptools-to-dir",
                      help=("Allow for re-use of existing directory of "
                            "setuptools versions"))
    
    options, args = parser.parse_args()
    if options.version:
        print("bootstrap.py version %s" % __version__)
        sys.exit(0)
    
    
    ######################################################################
    # load/install setuptools
    
    try:
        from urllib.request import urlopen
    except ImportError:
        from urllib2 import urlopen
    
    ez = {}
    if os.path.exists('ez_setup.py'):
        exec(open('ez_setup.py').read(), ez)
    else:
        exec(urlopen('https://bootstrap.pypa.io/ez_setup.py').read(), ez)
    
    if not options.allow_site_packages:
        # ez_setup imports site, which adds site packages
        # this will remove them from the path to ensure that incompatible versions
        # of setuptools are not in the path
        import site
        # inside a virtualenv, there is no 'getsitepackages'.
        # We can't remove these reliably
        if hasattr(site, 'getsitepackages'):
            for sitepackage_path in site.getsitepackages():
                # Strip all site-packages directories from sys.path that
                # are not sys.prefix; this is because on Windows
                # sys.prefix is a site-package directory.
                if sitepackage_path != sys.prefix:
                    sys.path[:] = [x for x in sys.path
                                   if sitepackage_path not in x]
    
    setup_args = dict(to_dir=tmpeggs, download_delay=0)
    
    if options.setuptools_version is not None:
        setup_args['version'] = options.setuptools_version
    if options.setuptools_to_dir is not None:
        setup_args['to_dir'] = options.setuptools_to_dir
    
    ez['use_setuptools'](**setup_args)
    import setuptools
    import pkg_resources
    
    # This does not (always?) update the default working set.  We will
    # do it.
    for path in sys.path:
        if path not in pkg_resources.working_set.entries:
            pkg_resources.working_set.add_entry(path)
    
    ######################################################################
    # Install buildout
    
    ws = pkg_resources.working_set
    
    setuptools_path = ws.find(
        pkg_resources.Requirement.parse('setuptools')).location
    
    # Fix sys.path here as easy_install.pth added before PYTHONPATH
    cmd = [sys.executable, '-c',
           'import sys; sys.path[0:0] = [%r]; ' % setuptools_path +
           'from setuptools.command.easy_install import main; main()',
           '-mZqNxd', tmpeggs]
    
    find_links = os.environ.get(
        'bootstrap-testing-find-links',
        options.find_links or
        ('http://downloads.buildout.org/'
         if options.accept_buildout_test_releases else None)
        )
    if find_links:
        cmd.extend(['-f', find_links])
    
    requirement = 'zc.buildout'
    version = options.buildout_version
    if version is None and not options.accept_buildout_test_releases:
        # Figure out the most recent final version of zc.buildout.
        import setuptools.package_index
        _final_parts = '*final-', '*final'
    
        def _final_version(parsed_version):
            try:
                return not parsed_version.is_prerelease
            except AttributeError:
                # Older setuptools
                for part in parsed_version:
                    if (part[:1] == '*') and (part not in _final_parts):
                        return False
                return True
    
        index = setuptools.package_index.PackageIndex(
            search_path=[setuptools_path])
        if find_links:
            index.add_find_links((find_links,))
        req = pkg_resources.Requirement.parse(requirement)
        if index.obtain(req) is not None:
            best = []
            bestv = None
            for dist in index[req.project_name]:
                distv = dist.parsed_version
                if _final_version(distv):
                    if bestv is None or distv > bestv:
                        best = [dist]
                        bestv = distv
                    elif distv == bestv:
                        best.append(dist)
            if best:
                best.sort()
                version = best[-1].version
    if version:
        requirement = '=='.join((requirement, version))
    cmd.append(requirement)
    
    import subprocess
    if subprocess.call(cmd) != 0:
        raise Exception(
            "Failed to execute command:\n%s" % repr(cmd)[1:-1])
    
    ######################################################################
    # Import and run buildout
    
    ws.add_entry(tmpeggs)
    ws.require(requirement)
    import zc.buildout.buildout
    
    if not [a for a in args if '=' not in a]:
        args.append('bootstrap')
    
    # if -c was provided, we push it back into args for buildout' main function
    if options.config_file is not None:
        args[0:0] = ['-c', options.config_file]
    
    zc.buildout.buildout.main(args)
    shutil.rmtree(tmpeggs)