mirror of
https://github.com/pypa/pip
synced 2023-12-13 21:30:23 +01:00
198 lines
7.3 KiB
Python
Executable file
198 lines
7.3 KiB
Python
Executable file
#!/usr/bin/env python
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import os
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import optparse
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import sys
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import re
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import difflib
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from pip.basecommand import command_dict, load_command, load_all_commands, command_names
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from pip.baseparser import parser
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from pip.exceptions import InstallationError
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from pip.log import logger
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from pip.util import get_installed_distributions, get_prog
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from pip.vcs import git, mercurial, subversion, bazaar # noqa
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# The version as used in the setup.py and the docs conf.py
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__version__ = "1.2.1.post1"
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def autocomplete():
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"""Command and option completion for the main option parser (and options)
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and its subcommands (and options).
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Enable by sourcing one of the completion shell scripts (bash or zsh).
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"""
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# Don't complete if user hasn't sourced bash_completion file.
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if 'PIP_AUTO_COMPLETE' not in os.environ:
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return
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cwords = os.environ['COMP_WORDS'].split()[1:]
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cword = int(os.environ['COMP_CWORD'])
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try:
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current = cwords[cword - 1]
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except IndexError:
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current = ''
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load_all_commands()
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subcommands = [cmd for cmd, cls in command_dict.items() if not cls.hidden]
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options = []
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# subcommand
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try:
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subcommand_name = [w for w in cwords if w in subcommands][0]
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except IndexError:
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subcommand_name = None
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# subcommand options
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if subcommand_name:
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# special case: 'help' subcommand has no options
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if subcommand_name == 'help':
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sys.exit(1)
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# special case: list locally installed dists for uninstall command
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if subcommand_name == 'uninstall' and not current.startswith('-'):
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installed = []
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lc = current.lower()
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for dist in get_installed_distributions(local_only=True):
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if dist.key.startswith(lc) and dist.key not in cwords[1:]:
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installed.append(dist.key)
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# if there are no dists installed, fall back to option completion
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if installed:
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for dist in installed:
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print(dist)
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sys.exit(1)
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subcommand = command_dict.get(subcommand_name)
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options += [(opt.get_opt_string(), opt.nargs)
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for opt in subcommand.parser.option_list
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if opt.help != optparse.SUPPRESS_HELP]
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# filter out previously specified options from available options
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prev_opts = [x.split('=')[0] for x in cwords[1:cword - 1]]
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options = [(x, v) for (x, v) in options if x not in prev_opts]
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# filter options by current input
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options = [(k, v) for k, v in options if k.startswith(current)]
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for option in options:
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opt_label = option[0]
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# append '=' to options which require args
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if option[1]:
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opt_label += '='
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print(opt_label)
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else:
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# show options of main parser only when necessary
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if current.startswith('-') or current.startswith('--'):
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subcommands += [opt.get_opt_string()
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for opt in parser.option_list
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if opt.help != optparse.SUPPRESS_HELP]
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print(' '.join([x for x in subcommands if x.startswith(current)]))
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sys.exit(1)
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def main(initial_args=None):
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if initial_args is None:
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initial_args = sys.argv[1:]
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autocomplete()
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options, args = parser.parse_args(initial_args)
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if options.help and not args:
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args = ['help']
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if not args:
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parser.error('You must give a command '
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'(use "%s help" to see a list of commands)' % get_prog())
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command = args[0].lower()
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load_command(command)
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if command not in command_dict:
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close_commands = difflib.get_close_matches(command, command_names())
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if close_commands:
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guess = close_commands[0]
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if args[1:]:
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guess = "%s %s" % (guess, " ".join(args[1:]))
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else:
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guess = 'install %s' % command
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error_dict = {'arg': command, 'guess': guess,
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'script': os.path.basename(sys.argv[0])}
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parser.error('No command by the name %(script)s %(arg)s\n '
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'(maybe you meant "%(script)s %(guess)s")' % error_dict)
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command = command_dict[command]
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return command.main(args[1:], options)
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def bootstrap():
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"""
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Bootstrapping function to be called from install-pip.py script.
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"""
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return main(['install', '--upgrade', 'pip'])
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############################################################
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## Writing freeze files
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class FrozenRequirement(object):
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def __init__(self, name, req, editable, comments=()):
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self.name = name
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self.req = req
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self.editable = editable
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self.comments = comments
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_rev_re = re.compile(r'-r(\d+)$')
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_date_re = re.compile(r'-(20\d\d\d\d\d\d)$')
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@classmethod
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def from_dist(cls, dist, dependency_links, find_tags=False):
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location = os.path.normcase(os.path.abspath(dist.location))
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comments = []
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from pip.vcs import vcs, get_src_requirement
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if vcs.get_backend_name(location):
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editable = True
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try:
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req = get_src_requirement(dist, location, find_tags)
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except InstallationError:
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ex = sys.exc_info()[1]
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logger.warn("Error when trying to get requirement for VCS system %s, falling back to uneditable format" % ex)
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req = None
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if req is None:
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logger.warn('Could not determine repository location of %s' % location)
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comments.append('## !! Could not determine repository location')
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req = dist.as_requirement()
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editable = False
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else:
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editable = False
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req = dist.as_requirement()
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specs = req.specs
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assert len(specs) == 1 and specs[0][0] == '=='
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version = specs[0][1]
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ver_match = cls._rev_re.search(version)
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date_match = cls._date_re.search(version)
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if ver_match or date_match:
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svn_backend = vcs.get_backend('svn')
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if svn_backend:
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svn_location = svn_backend(
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).get_location(dist, dependency_links)
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if not svn_location:
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logger.warn(
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'Warning: cannot find svn location for %s' % req)
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comments.append('## FIXME: could not find svn URL in dependency_links for this package:')
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else:
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comments.append('# Installing as editable to satisfy requirement %s:' % req)
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if ver_match:
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rev = ver_match.group(1)
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else:
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rev = '{%s}' % date_match.group(1)
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editable = True
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req = '%s@%s#egg=%s' % (svn_location, rev, cls.egg_name(dist))
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return cls(dist.project_name, req, editable, comments)
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@staticmethod
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def egg_name(dist):
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name = dist.egg_name()
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match = re.search(r'-py\d\.\d$', name)
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if match:
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name = name[:match.start()]
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return name
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def __str__(self):
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req = self.req
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if self.editable:
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req = '-e %s' % req
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return '\n'.join(list(self.comments) + [str(req)]) + '\n'
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if __name__ == '__main__':
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exit = main()
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if exit:
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sys.exit(exit)
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