Source code for meta_package_manager.managers.gem

# -*- coding: utf-8 -*-
#
# Copyright (c) 2016-2017 Kevin Deldycke <kevin@deldycke.com>
#                         and contributors.
# All Rights Reserved.
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

from __future__ import (
    absolute_import,
    division,
    print_function,
    unicode_literals
)

import os
import re

from boltons.cacheutils import cachedproperty

from ..base import PackageManager
from ..platform import MACOS


[docs]class Gem(PackageManager): HOMEBREW_PATH = '/usr/local/bin/gem' SYSTEM_PATH = '/usr/bin/gem' platforms = frozenset([MACOS])
[docs] def __init__(self): super(Gem, self).__init__() # Check if the gem CLI is the original one from the system or was # installed via Homebrew. self.system_install = True if os.path.exists(Gem.HOMEBREW_PATH): self.system_install = False
[docs] def get_version(self): """ Fetch version from ``gem --version`` output.""" return self.run([self.cli_path, '--version'])
@cachedproperty def cli_path(self): return Gem.SYSTEM_PATH if self.system_install else Gem.HOMEBREW_PATH name = "Ruby Gems" @cachedproperty def installed(self): """ Fetch installed packages from ``gem list`` output. Raw CLI output sample: .. code-block:: shell-session $ gem list *** LOCAL GEMS *** bigdecimal (1.2.0) CFPropertyList (2.2.8) io-console (0.4.2) json (1.7.7) libxml-ruby (2.6.0) minitest (4.3.2) nokogiri (1.5.6) psych (2.0.0) rake (0.9.6) rdoc (4.0.0) sqlite3 (1.3.7) test-unit (2.0.0.0) """ installed = {} # `list` operation does not require sudo privileges on homebrew or # system. output = self.run([self.cli_path] + self.cli_args + ['list']) if output: regexp = re.compile(r'(\S+) \((\S+)\)') for package in output.split('\n'): if not package or package.startswith('***'): continue package_id, current_version = regexp.match(package).groups() installed[package_id] = { 'id': package_id, 'name': package_id, 'installed_version': current_version} return installed @cachedproperty def outdated(self): """ Fetch outdated packages from ``gem outdated`` output. Raw CLI output sample: .. code-block:: shell-session $ gem outdated did_you_mean (1.0.0 < 1.0.2) io-console (0.4.5 < 0.4.6) json (1.8.3 < 2.0.1) minitest (5.8.3 < 5.9.0) power_assert (0.2.6 < 0.3.0) psych (2.0.17 < 2.1.0) """ outdated = {} # `outdated` operation does not require sudo privileges on homebrew or # system. output = self.run([self.cli_path] + self.cli_args + ['outdated']) if output: regexp = re.compile(r'(\S+) \((\S+) < (\S+)\)') for package in output.split('\n'): if not package: continue package_id, current_version, latest_version = regexp.match( package).groups() outdated[package_id] = { 'id': package_id, 'name': package_id, 'installed_version': current_version, 'latest_version': latest_version} return outdated
[docs] def upgrade_cli(self, package_id=None): cmd = [self.cli_path] + self.cli_args + ['update'] # Installs require `sudo` on system ruby. # I (@tresni) recommend doing something like: # $ sudo dseditgroup -o edit -a -t user wheel # And then do `visudo` to make it so the `wheel` group does not require # a password. There is a line already there for it, you just need to # uncomment it and save.) if self.system_install: cmd.insert(0, '/usr/bin/sudo') if package_id: cmd.append(package_id) return cmd
[docs] def upgrade_all_cli(self): return self.upgrade_cli()