# Copyright (C) 2009 Canonical # # Authors: # Michael Vogt # # 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; version 3. # # 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., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import logging import os from gettext import gettext as _ import platform from softwarecenter.utils import UnimplementedError, utf8 LOG = logging.getLogger(__name__) class Distro(object): """ abstract base class for a distribution """ # base path for the review summary, the JS will append %i.png # (with i={1,5}) REVIEW_SUMMARY_STARS_BASE_PATH = \ "/usr/share/software-center/images/review-summary" REVIEWS_SERVER = (os.environ.get("SOFTWARE_CENTER_REVIEWS_HOST") or "http://localhost:8000") # You need to set this var to enable purchases PURCHASE_APP_URL = "" # Point developers to a web page DEVELOPER_URL = "" def __init__(self): """Return a new generic Distro instance.""" def get_app_name(self): """ The name of the application (as displayed in the main window and the about window) """ return _("Software Center") def get_app_id(self): """ The application-id (as used on the .desktop file) """ return "software-center" def get_app_description(self): """ The description of the application displayed in the about dialog """ return _("Lets you choose from thousands of applications available " "for your system.") def get_distro_channel_name(self): """ The name of the main channel in the Release file (e.g. Ubuntu)""" return "none" def get_distro_channel_description(self): """ The description for the main distro channel """ return "none" def get_codename(self): """ The codename of the distro, e.g. lucid """ # for tests and similar if "SOFTWARE_CENTER_DISTRO_CODENAME" in os.environ: distrocode = os.environ["SOFTWARE_CENTER_DISTRO_CODENAME"] LOG.warn("overriding distro codename to '%s'" % distrocode) return distrocode # normal behavior if not hasattr(self, "_distro_code_name"): self._distro_code_name = platform.dist()[2] return self._distro_code_name def get_maintenance_status(self, cache, appname, pkgname, component, channelname): raise UnimplementedError def get_license_text(self, component): raise UnimplementedError def is_supported(self, cache, doc, pkgname): """ return True if the given document and pkgname is supported by the distribution """ raise UnimplementedError def get_supported_query(self): """ return a xapian query that gives all supported documents """ import xapian return xapian.Query() def get_supported_filter_name(self): return _("Supported Software") def get_install_warning_text(self, cache, pkg, appname, depends): primary = (utf8(_("To install %s, these items must be removed:")) % utf8(appname)) button_text = _("Install Anyway") # alter it if a meta-package is affected for m in depends: if cache[m].section == "metapackages": primary = utf8( _("If you install %s, future updates will not " "include new items in %s set. " "Are you sure you want to continue?")) % ( utf8(appname), cache[m].installed.summary) button_text = _("Install Anyway") depends = [] break # alter it if an important meta-package is affected for m in self.IMPORTANT_METAPACKAGES: if m in depends: primary = utf8(_("Installing %s may cause core applications " "to be removed. Are you sure you want to " "continue?")) % utf8(appname) button_text = _("Install Anyway") depends = None break return (primary, button_text) # generic version of deauthorize, can be customized by the distro def get_deauthorize_text(self, account_name, purchased_packages): if len(purchased_packages) == 0: if account_name: primary = _('Are you sure you want to deauthorize this ' 'computer from the "%s" account?') % account_name else: primary = _('Are you sure you want to deauthorize this ' 'computer for purchases?') button_text = _('Deauthorize') else: if account_name: primary = _('Deauthorizing this computer from the "%s" ' 'account will remove this purchased ' 'software:') % account_name else: primary = _('Deauthorizing this computer for purchases ' 'will remove the following purchased software:') button_text = _('Remove All') return (primary, button_text) # generic architecture detection code def get_architecture(self): pass def _get_distro(): distro_info = platform.linux_distribution() distro_id = distro_info[0] LOG.debug("get_distro: '%s'", distro_id) # normalize name for the import distro_module_name = distro_id.lower() distro_class_name = distro_id.capitalize() # start with a import, this gives us only a softwarecenter module module = __import__(distro_module_name, globals(), locals(), [], -1) # get the right class and instantiate it distro_class = getattr(module, distro_class_name) instance = distro_class() return instance def get_distro(): """ factory to return the right Distro object """ return distro_instance def get_current_arch(): # for tests and similar if "SOFTWARE_CENTER_ARCHITECTURE" in os.environ: arch = os.environ["SOFTWARE_CENTER_ARCHITECTURE"] LOG.warn("overriding architecture to '%s'" % arch) return arch return get_distro().get_architecture() def get_foreign_architectures(): return get_distro().get_foreign_architectures() # singleton distro_instance = _get_distro() if __name__ == "__main__": print(get_distro())