diff options
Diffstat (limited to 'pym/portage/package/ebuild/_spawn_nofetch.py')
-rw-r--r-- | pym/portage/package/ebuild/_spawn_nofetch.py | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/pym/portage/package/ebuild/_spawn_nofetch.py b/pym/portage/package/ebuild/_spawn_nofetch.py new file mode 100644 index 000000000..8de0a94bd --- /dev/null +++ b/pym/portage/package/ebuild/_spawn_nofetch.py @@ -0,0 +1,75 @@ +# Copyright 2010 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +import shutil +import tempfile + +from portage import os +from portage.const import EBUILD_PHASES +from portage.package.ebuild.config import config +from portage.package.ebuild.doebuild import doebuild_environment +from portage.package.ebuild.prepare_build_dirs import prepare_build_dirs +from _emerge.EbuildPhase import EbuildPhase +from _emerge.PollScheduler import PollScheduler + +def spawn_nofetch(portdb, ebuild_path, settings=None): + """ + This spawns pkg_nofetch if appropriate. The settings parameter + is useful only if setcpv has already been called in order + to cache metadata. It will be cloned internally, in order to + prevent any changes from interfering with the calling code. + If settings is None then a suitable config instance will be + acquired from the given portdbapi instance. + + A private PORTAGE_BUILDDIR is be created and cleaned up, in + order to avoid any interference with any other processes. + If PORTAGE_TMPDIR is writable, that will be used, otherwise + the default directory for the tempfile module will be used. + + We only call the pkg_nofetch phase if either RESTRICT=fetch + is set or the package has explicitly overridden the default + pkg_nofetch implementation. This allows specialized messages + to be displayed for problematic packages even though they do + not set RESTRICT=fetch (bug #336499). + + This function does nothing if the PORTAGE_PARALLEL_FETCHONLY + variable is set in the config instance. + """ + + if settings is None: + settings = config(clone=portdb.settings) + else: + settings = config(clone=settings) + + if 'PORTAGE_PARALLEL_FETCHONLY' in settings: + return + + doebuild_environment(ebuild_path, 'nofetch', + settings=settings, db=portdb) + restrict = settings['PORTAGE_RESTRICT'].split() + defined_phases = settings['DEFINED_PHASES'].split() + if not defined_phases: + # When DEFINED_PHASES is undefined, assume all + # phases are defined. + defined_phases = EBUILD_PHASES + + if 'fetch' not in restrict and \ + 'nofetch' not in defined_phases: + return + + portage_tmpdir = settings.get('PORTAGE_TMPDIR') + if not portage_tmpdir or not os.access(portage_tmpdir, os.W_OK): + portage_tmpdir = None + private_tmpdir = tempfile.mkdtemp(dir=portage_tmpdir) + settings['PORTAGE_TMPDIR'] = private_tmpdir + settings.backup_changes('PORTAGE_TMPDIR') + + try: + prepare_build_dirs(settings=settings) + ebuild_phase = EbuildPhase(background=False, + phase='nofetch', scheduler=PollScheduler().sched_iface, + settings=settings) + ebuild_phase.start() + ebuild_phase.wait() + finally: + shutil.rmtree(private_tmpdir) |