pym/_emerge/EbuildFetchonly.py

   1 # Copyright 1999-2009 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3 # $Id$
   4
   5 from _emerge.SlotObject import SlotObject
   6 import shutil
   7 import portage
   8 from portage import os
   9 from portage.elog.messages import eerror
  10
  11 class EbuildFetchonly(SlotObject):
  12
  13         __slots__ = ("fetch_all", "pkg", "pretend", "settings")
  14
  15         def execute(self):
  16                 settings = self.settings
  17                 pkg = self.pkg
  18                 portdb = pkg.root_config.trees["porttree"].dbapi
  19                 ebuild_path = portdb.findname(pkg.cpv)
  20                 if ebuild_path is None:
  21                         raise AssertionError("ebuild not found for '%s'" % pkg.cpv)
  22                 settings.setcpv(pkg)
  23                 debug = settings.get("PORTAGE_DEBUG") == "1"
  24
  25                 if 'fetch' in pkg.metadata.restrict:
  26                         rval = self._execute_with_builddir()
  27                 else:
  28                         rval = portage.doebuild(ebuild_path, "fetch",
  29                                 settings["ROOT"], settings, debug=debug,
  30                                 listonly=self.pretend, fetchonly=1, fetchall=self.fetch_all,
  31                                 mydbapi=portdb, tree="porttree")
  32
  33                         if rval != os.EX_OK:
  34                                 msg = "Fetch failed for '%s'" % (pkg.cpv,)
  35                                 eerror(msg, phase="unpack", key=pkg.cpv)
  36
  37                 return rval
  38
  39         def _execute_with_builddir(self):
  40                 # To spawn pkg_nofetch requires PORTAGE_BUILDDIR for
  41                 # ensuring sane $PWD (bug #239560) and storing elog
  42                 # messages. Use a private temp directory, in order
  43                 # to avoid locking the main one.
  44                 settings = self.settings
  45                 global_tmpdir = settings["PORTAGE_TMPDIR"]
  46                 from tempfile import mkdtemp
  47                 try:
  48                         private_tmpdir = mkdtemp("", "._portage_fetch_.", global_tmpdir)
  49                 except OSError as e:
  50                         if e.errno != portage.exception.PermissionDenied.errno:
  51                                 raise
  52                         raise portage.exception.PermissionDenied(global_tmpdir)
  53                 settings["PORTAGE_TMPDIR"] = private_tmpdir
  54                 settings.backup_changes("PORTAGE_TMPDIR")
  55                 try:
  56                         retval = self._execute()
  57                 finally:
  58                         settings["PORTAGE_TMPDIR"] = global_tmpdir
  59                         settings.backup_changes("PORTAGE_TMPDIR")
  60                         shutil.rmtree(private_tmpdir)
  61                 return retval
  62
  63         def _execute(self):
  64                 settings = self.settings
  65                 pkg = self.pkg
  66                 root_config = pkg.root_config
  67                 portdb = root_config.trees["porttree"].dbapi
  68                 ebuild_path = portdb.findname(pkg.cpv)
  69                 if ebuild_path is None:
  70                         raise AssertionError("ebuild not found for '%s'" % pkg.cpv)
  71                 debug = settings.get("PORTAGE_DEBUG") == "1"
  72                 retval = portage.doebuild(ebuild_path, "fetch",
  73                         self.settings["ROOT"], self.settings, debug=debug,
  74                         listonly=self.pretend, fetchonly=1, fetchall=self.fetch_all,
  75                         mydbapi=portdb, tree="porttree")
  76
  77                 if retval != os.EX_OK:
  78                         msg = "Fetch failed for '%s'" % (pkg.cpv,)
  79                         eerror(msg, phase="unpack", key=pkg.cpv)
  80
  81                 portage.elog.elog_process(self.pkg.cpv, self.settings)
  82                 return retval
  83