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1 files changed, 337 insertions, 0 deletions

diff --git a/lib/python2.7/site-packages/pip/basecommand.py b/lib/python2.7/site-packages/pip/basecommand.py
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+++ b/lib/python2.7/site-packages/pip/basecommand.py
@@ -0,0 +1,337 @@
+"""Base Command class, and related routines"""
+from __future__ import absolute_import
+
+import logging
+import os
+import sys
+import optparse
+import warnings
+
+from pip import cmdoptions
+from pip.index import PackageFinder
+from pip.locations import running_under_virtualenv
+from pip.download import PipSession
+from pip.exceptions import (BadCommand, InstallationError, UninstallationError,
+                            CommandError, PreviousBuildDirError)
+
+from pip.compat import logging_dictConfig
+from pip.baseparser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
+from pip.req import InstallRequirement, parse_requirements
+from pip.status_codes import (
+    SUCCESS, ERROR, UNKNOWN_ERROR, VIRTUALENV_NOT_FOUND,
+    PREVIOUS_BUILD_DIR_ERROR,
+)
+from pip.utils import deprecation, get_prog, normalize_path
+from pip.utils.logging import IndentingFormatter
+from pip.utils.outdated import pip_version_check
+
+
+__all__ = ['Command']
+
+
+logger = logging.getLogger(__name__)
+
+
+class Command(object):
+    name = None
+    usage = None
+    hidden = False
+    log_streams = ("ext://sys.stdout", "ext://sys.stderr")
+
+    def __init__(self, isolated=False):
+        parser_kw = {
+            'usage': self.usage,
+            'prog': '%s %s' % (get_prog(), self.name),
+            'formatter': UpdatingDefaultsHelpFormatter(),
+            'add_help_option': False,
+            'name': self.name,
+            'description': self.__doc__,
+            'isolated': isolated,
+        }
+
+        self.parser = ConfigOptionParser(**parser_kw)
+
+        # Commands should add options to this option group
+        optgroup_name = '%s Options' % self.name.capitalize()
+        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)
+
+        # Add the general options
+        gen_opts = cmdoptions.make_option_group(
+            cmdoptions.general_group,
+            self.parser,
+        )
+        self.parser.add_option_group(gen_opts)
+
+    def _build_session(self, options, retries=None, timeout=None):
+        session = PipSession(
+            cache=(
+                normalize_path(os.path.join(options.cache_dir, "http"))
+                if options.cache_dir else None
+            ),
+            retries=retries if retries is not None else options.retries,
+            insecure_hosts=options.trusted_hosts,
+        )
+
+        # Handle custom ca-bundles from the user
+        if options.cert:
+            session.verify = options.cert
+
+        # Handle SSL client certificate
+        if options.client_cert:
+            session.cert = options.client_cert
+
+        # Handle timeouts
+        if options.timeout or timeout:
+            session.timeout = (
+                timeout if timeout is not None else options.timeout
+            )
+
+        # Handle configured proxies
+        if options.proxy:
+            session.proxies = {
+                "http": options.proxy,
+                "https": options.proxy,
+            }
+
+        # Determine if we can prompt the user for authentication or not
+        session.auth.prompting = not options.no_input
+
+        return session
+
+    def parse_args(self, args):
+        # factored out for testability
+        return self.parser.parse_args(args)
+
+    def main(self, args):
+        options, args = self.parse_args(args)
+
+        if options.quiet:
+            if options.quiet == 1:
+                level = "WARNING"
+            if options.quiet == 2:
+                level = "ERROR"
+            else:
+                level = "CRITICAL"
+        elif options.verbose:
+            level = "DEBUG"
+        else:
+            level = "INFO"
+
+        # The root logger should match the "console" level *unless* we
+        # specified "--log" to send debug logs to a file.
+        root_level = level
+        if options.log:
+            root_level = "DEBUG"
+
+        logging_dictConfig({
+            "version": 1,
+            "disable_existing_loggers": False,
+            "filters": {
+                "exclude_warnings": {
+                    "()": "pip.utils.logging.MaxLevelFilter",
+                    "level": logging.WARNING,
+                },
+            },
+            "formatters": {
+                "indent": {
+                    "()": IndentingFormatter,
+                    "format": "%(message)s",
+                },
+            },
+            "handlers": {
+                "console": {
+                    "level": level,
+                    "class": "pip.utils.logging.ColorizedStreamHandler",
+                    "stream": self.log_streams[0],
+                    "filters": ["exclude_warnings"],
+                    "formatter": "indent",
+                },
+                "console_errors": {
+                    "level": "WARNING",
+                    "class": "pip.utils.logging.ColorizedStreamHandler",
+                    "stream": self.log_streams[1],
+                    "formatter": "indent",
+                },
+                "user_log": {
+                    "level": "DEBUG",
+                    "class": "pip.utils.logging.BetterRotatingFileHandler",
+                    "filename": options.log or "/dev/null",
+                    "delay": True,
+                    "formatter": "indent",
+                },
+            },
+            "root": {
+                "level": root_level,
+                "handlers": list(filter(None, [
+                    "console",
+                    "console_errors",
+                    "user_log" if options.log else None,
+                ])),
+            },
+            # Disable any logging besides WARNING unless we have DEBUG level
+            # logging enabled. These use both pip._vendor and the bare names
+            # for the case where someone unbundles our libraries.
+            "loggers": dict(
+                (
+                    name,
+                    {
+                        "level": (
+                            "WARNING"
+                            if level in ["INFO", "ERROR"]
+                            else "DEBUG"
+                        ),
+                    },
+                )
+                for name in ["pip._vendor", "distlib", "requests", "urllib3"]
+            ),
+        })
+
+        if sys.version_info[:2] == (2, 6):
+            warnings.warn(
+                "Python 2.6 is no longer supported by the Python core team, "
+                "please upgrade your Python. A future version of pip will "
+                "drop support for Python 2.6",
+                deprecation.Python26DeprecationWarning
+            )
+
+        # TODO: try to get these passing down from the command?
+        #      without resorting to os.environ to hold these.
+
+        if options.no_input:
+            os.environ['PIP_NO_INPUT'] = '1'
+
+        if options.exists_action:
+            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)
+
+        if options.require_venv:
+            # If a venv is required check if it can really be found
+            if not running_under_virtualenv():
+                logger.critical(
+                    'Could not find an activated virtualenv (required).'
+                )
+                sys.exit(VIRTUALENV_NOT_FOUND)
+
+        try:
+            status = self.run(options, args)
+            # FIXME: all commands should return an exit status
+            # and when it is done, isinstance is not needed anymore
+            if isinstance(status, int):
+                return status
+        except PreviousBuildDirError as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return PREVIOUS_BUILD_DIR_ERROR
+        except (InstallationError, UninstallationError, BadCommand) as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except CommandError as exc:
+            logger.critical('ERROR: %s', exc)
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except KeyboardInterrupt:
+            logger.critical('Operation cancelled by user')
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except:
+            logger.critical('Exception:', exc_info=True)
+
+            return UNKNOWN_ERROR
+        finally:
+            # Check if we're using the latest version of pip available
+            if (not options.disable_pip_version_check and not
+                    getattr(options, "no_index", False)):
+                with self._build_session(
+                        options,
+                        retries=0,
+                        timeout=min(5, options.timeout)) as session:
+                    pip_version_check(session)
+
+        return SUCCESS
+
+
+class RequirementCommand(Command):
+
+    @staticmethod
+    def populate_requirement_set(requirement_set, args, options, finder,
+                                 session, name, wheel_cache):
+        """
+        Marshal cmd line args into a requirement set.
+        """
+        for filename in options.constraints:
+            for req in parse_requirements(
+                    filename,
+                    constraint=True, finder=finder, options=options,
+                    session=session, wheel_cache=wheel_cache):
+                requirement_set.add_requirement(req)
+
+        for req in args:
+            requirement_set.add_requirement(
+                InstallRequirement.from_line(
+                    req, None, isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache
+                )
+            )
+
+        for req in options.editables:
+            requirement_set.add_requirement(
+                InstallRequirement.from_editable(
+                    req,
+                    default_vcs=options.default_vcs,
+                    isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache
+                )
+            )
+
+        found_req_in_file = False
+        for filename in options.requirements:
+            for req in parse_requirements(
+                    filename,
+                    finder=finder, options=options, session=session,
+                    wheel_cache=wheel_cache):
+                found_req_in_file = True
+                requirement_set.add_requirement(req)
+        # If --require-hashes was a line in a requirements file, tell
+        # RequirementSet about it:
+        requirement_set.require_hashes = options.require_hashes
+
+        if not (args or options.editables or found_req_in_file):
+            opts = {'name': name}
+            if options.find_links:
+                msg = ('You must give at least one requirement to '
+                       '%(name)s (maybe you meant "pip %(name)s '
+                       '%(links)s"?)' %
+                       dict(opts, links=' '.join(options.find_links)))
+            else:
+                msg = ('You must give at least one requirement '
+                       'to %(name)s (see "pip help %(name)s")' % opts)
+            logger.warning(msg)
+
+    def _build_package_finder(self, options, session,
+                              platform=None, python_versions=None,
+                              abi=None, implementation=None):
+        """
+        Create a package finder appropriate to this requirement command.
+        """
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        return PackageFinder(
+            find_links=options.find_links,
+            format_control=options.format_control,
+            index_urls=index_urls,
+            trusted_hosts=options.trusted_hosts,
+            allow_all_prereleases=options.pre,
+            process_dependency_links=options.process_dependency_links,
+            session=session,
+            platform=platform,
+            versions=python_versions,
+            abi=abi,
+            implementation=implementation,
+        )