pyFabricAndCapistrano.py 文件源码

def with_defaults(func):
    """A decorator that sets all defaults for a task."""

    @functools.wraps(func)
    def decorated(*args, **kwargs):
        env.setdefault('use_sudo', True)
        env.setdefault('git_branch', 'master')
        env.setdefault('python_bin', 'python')
        env.setdefault('remote_owner', 'www-data')
        env.setdefault('remote_group', 'www-data')
        env.setdefault('pip_install_command', 'pip install -r requirements.txt')

        env.setdefault('domain_path', "%(base_dir)s/%(app_name)s" %
                       {'base_dir': env.base_dir,
                        'app_name': env.app_name})
        env.setdefault('current_path', "%(domain_path)s/current" %
                       {'domain_path': env.domain_path})
        env.setdefault('releases_path', "%(domain_path)s/releases" %
                       {'domain_path': env.domain_path})
        env.setdefault('shared_path', "%(domain_path)s/shared" %
                       {'domain_path': env.domain_path})
        if not 'releases' not in env:
            if dir_exists(env.releases_path):
                env.releases = sorted(run('ls -x %(releases_path)s' % {'releases_path': env.releases_path}).split())

                if len(env.releases) >= 1:
                    env.current_revision = env.releases[-1]
                    env.current_release = "%(releases_path)s/%(current_revision)s" % \
                                          {'releases_path': env.releases_path,
                                           'current_revision': env.current_revision}
                if len(env.releases) > 1:
                    env.previous_revision = env.releases[-2]
                    env.previous_release = "%(releases_path)s/%(previous_revision)s" % \
                                           {'releases_path': env.releases_path,
                                            'previous_revision': env.previous_revision}
        return func(*args, **kwargs)

    return decorated