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|
# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
from __future__ import print_function
from collections import deque
import gc
import gzip
import logging
import shutil
import signal
import sys
import tempfile
import textwrap
import time
import warnings
import weakref
import zlib
import portage
from portage import StringIO
from portage import os
from portage import _encodings
from portage import _unicode_decode, _unicode_encode
from portage.cache.mappings import slot_dict_class
from portage.elog.messages import eerror
from portage.localization import _
from portage.output import colorize, create_color_func, red
bad = create_color_func("BAD")
from portage._sets import SETPREFIX
from portage._sets.base import InternalPackageSet
from portage.util import writemsg, writemsg_level
from portage.package.ebuild.digestcheck import digestcheck
from portage.package.ebuild.digestgen import digestgen
from portage.package.ebuild.prepare_build_dirs import prepare_build_dirs
from _emerge.BinpkgFetcher import BinpkgFetcher
from _emerge.BinpkgPrefetcher import BinpkgPrefetcher
from _emerge.BinpkgVerifier import BinpkgVerifier
from _emerge.Blocker import Blocker
from _emerge.BlockerDB import BlockerDB
from _emerge.clear_caches import clear_caches
from _emerge.create_depgraph_params import create_depgraph_params
from _emerge.create_world_atom import create_world_atom
from _emerge.DepPriority import DepPriority
from _emerge.depgraph import depgraph, resume_depgraph
from _emerge.EbuildFetcher import EbuildFetcher
from _emerge.EbuildPhase import EbuildPhase
from _emerge.emergelog import emergelog, _emerge_log_dir
from _emerge.FakeVartree import FakeVartree
from _emerge._find_deep_system_runtime_deps import _find_deep_system_runtime_deps
from _emerge._flush_elog_mod_echo import _flush_elog_mod_echo
from _emerge.JobStatusDisplay import JobStatusDisplay
from _emerge.MergeListItem import MergeListItem
from _emerge.MiscFunctionsProcess import MiscFunctionsProcess
from _emerge.Package import Package
from _emerge.PackageMerge import PackageMerge
from _emerge.PollScheduler import PollScheduler
from _emerge.RootConfig import RootConfig
from _emerge.SlotObject import SlotObject
from _emerge.SequentialTaskQueue import SequentialTaskQueue
if sys.hexversion >= 0x3000000:
basestring = str
class Scheduler(PollScheduler):
# max time between display status updates (milliseconds)
_max_display_latency = 3000
_opts_ignore_blockers = \
frozenset(["--buildpkgonly",
"--fetchonly", "--fetch-all-uri",
"--nodeps", "--pretend"])
_opts_no_background = \
frozenset(["--pretend",
"--fetchonly", "--fetch-all-uri"])
_opts_no_restart = frozenset(["--buildpkgonly",
"--fetchonly", "--fetch-all-uri", "--pretend"])
_bad_resume_opts = set(["--ask", "--changelog",
"--resume", "--skipfirst"])
_fetch_log = os.path.join(_emerge_log_dir, 'emerge-fetch.log')
class _iface_class(SlotObject):
__slots__ = ("dblinkEbuildPhase", "dblinkDisplayMerge",
"dblinkElog", "dblinkEmergeLog", "fetch",
"output", "register", "schedule",
"scheduleSetup", "scheduleUnpack", "scheduleYield",
"unregister")
class _fetch_iface_class(SlotObject):
__slots__ = ("log_file", "schedule")
_task_queues_class = slot_dict_class(
("merge", "jobs", "fetch", "unpack"), prefix="")
class _build_opts_class(SlotObject):
__slots__ = ("buildpkg", "buildpkgonly",
"fetch_all_uri", "fetchonly", "pretend")
class _binpkg_opts_class(SlotObject):
__slots__ = ("fetchonly", "getbinpkg", "pretend")
class _pkg_count_class(SlotObject):
__slots__ = ("curval", "maxval")
class _emerge_log_class(SlotObject):
__slots__ = ("xterm_titles",)
def log(self, *pargs, **kwargs):
if not self.xterm_titles:
# Avoid interference with the scheduler's status display.
kwargs.pop("short_msg", None)
emergelog(self.xterm_titles, *pargs, **kwargs)
class _failed_pkg(SlotObject):
__slots__ = ("build_dir", "build_log", "pkg", "returncode")
class _ConfigPool(object):
"""Interface for a task to temporarily allocate a config
instance from a pool. This allows a task to be constructed
long before the config instance actually becomes needed, like
when prefetchers are constructed for the whole merge list."""
__slots__ = ("_root", "_allocate", "_deallocate")
def __init__(self, root, allocate, deallocate):
self._root = root
self._allocate = allocate
self._deallocate = deallocate
def allocate(self):
return self._allocate(self._root)
def deallocate(self, settings):
self._deallocate(settings)
class _unknown_internal_error(portage.exception.PortageException):
"""
Used internally to terminate scheduling. The specific reason for
the failure should have been dumped to stderr.
"""
def __init__(self, value=""):
portage.exception.PortageException.__init__(self, value)
def __init__(self, settings, trees, mtimedb, myopts,
spinner, mergelist=None, favorites=None, graph_config=None):
PollScheduler.__init__(self)
if mergelist is not None:
warnings.warn("The mergelist parameter of the " + \
"_emerge.Scheduler constructor is now unused. Use " + \
"the graph_config parameter instead.",
DeprecationWarning, stacklevel=2)
self.settings = settings
self.target_root = settings["ROOT"]
self.trees = trees
self.myopts = myopts
self._spinner = spinner
self._mtimedb = mtimedb
self._favorites = favorites
self._args_set = InternalPackageSet(favorites)
self._build_opts = self._build_opts_class()
for k in self._build_opts.__slots__:
setattr(self._build_opts, k, "--" + k.replace("_", "-") in myopts)
self._binpkg_opts = self._binpkg_opts_class()
for k in self._binpkg_opts.__slots__:
setattr(self._binpkg_opts, k, "--" + k.replace("_", "-") in myopts)
self.curval = 0
self._logger = self._emerge_log_class()
self._task_queues = self._task_queues_class()
for k in self._task_queues.allowed_keys:
setattr(self._task_queues, k,
SequentialTaskQueue())
# Holds merges that will wait to be executed when no builds are
# executing. This is useful for system packages since dependencies
# on system packages are frequently unspecified. For example, see
# bug #256616.
self._merge_wait_queue = deque()
# Holds merges that have been transfered from the merge_wait_queue to
# the actual merge queue. They are removed from this list upon
# completion. Other packages can start building only when this list is
# empty.
self._merge_wait_scheduled = []
# Holds system packages and their deep runtime dependencies. Before
# being merged, these packages go to merge_wait_queue, to be merged
# when no other packages are building.
self._deep_system_deps = set()
# Holds packages to merge which will satisfy currently unsatisfied
# deep runtime dependencies of system packages. If this is not empty
# then no parallel builds will be spawned until it is empty. This
# minimizes the possibility that a build will fail due to the system
# being in a fragile state. For example, see bug #259954.
self._unsatisfied_system_deps = set()
self._status_display = JobStatusDisplay(
xterm_titles=('notitles' not in settings.features))
self._max_load = myopts.get("--load-average")
max_jobs = myopts.get("--jobs")
if max_jobs is None:
max_jobs = 1
self._set_max_jobs(max_jobs)
# The root where the currently running
# portage instance is installed.
self._running_root = trees["/"]["root_config"]
self.edebug = 0
if settings.get("PORTAGE_DEBUG", "") == "1":
self.edebug = 1
self.pkgsettings = {}
self._config_pool = {}
for root in self.trees:
self._config_pool[root] = []
fetch_iface = self._fetch_iface_class(log_file=self._fetch_log,
schedule=self._schedule_fetch)
self._sched_iface = self._iface_class(
dblinkEbuildPhase=self._dblink_ebuild_phase,
dblinkDisplayMerge=self._dblink_display_merge,
dblinkElog=self._dblink_elog,
dblinkEmergeLog=self._dblink_emerge_log,
fetch=fetch_iface, output=self._task_output,
register=self._register,
schedule=self._schedule_wait,
scheduleSetup=self._schedule_setup,
scheduleUnpack=self._schedule_unpack,
scheduleYield=self._schedule_yield,
unregister=self._unregister)
self._prefetchers = weakref.WeakValueDictionary()
self._pkg_queue = []
self._running_tasks = set()
self._completed_tasks = set()
self._failed_pkgs = []
self._failed_pkgs_all = []
self._failed_pkgs_die_msgs = []
self._post_mod_echo_msgs = []
self._parallel_fetch = False
self._init_graph(graph_config)
merge_count = len([x for x in self._mergelist \
if isinstance(x, Package) and x.operation == "merge"])
self._pkg_count = self._pkg_count_class(
curval=0, maxval=merge_count)
self._status_display.maxval = self._pkg_count.maxval
# The load average takes some time to respond when new
# jobs are added, so we need to limit the rate of adding
# new jobs.
self._job_delay_max = 10
self._job_delay_factor = 1.0
self._job_delay_exp = 1.5
self._previous_job_start_time = None
# This is used to memoize the _choose_pkg() result when
# no packages can be chosen until one of the existing
# jobs completes.
self._choose_pkg_return_early = False
features = self.settings.features
if "parallel-fetch" in features and \
not ("--pretend" in self.myopts or \
"--fetch-all-uri" in self.myopts or \
"--fetchonly" in self.myopts):
if "distlocks" not in features:
portage.writemsg(red("!!!")+"\n", noiselevel=-1)
portage.writemsg(red("!!!")+" parallel-fetching " + \
"requires the distlocks feature enabled"+"\n",
noiselevel=-1)
portage.writemsg(red("!!!")+" you have it disabled, " + \
"thus parallel-fetching is being disabled"+"\n",
noiselevel=-1)
portage.writemsg(red("!!!")+"\n", noiselevel=-1)
elif merge_count > 1:
self._parallel_fetch = True
if self._parallel_fetch:
# clear out existing fetch log if it exists
try:
open(self._fetch_log, 'w')
except EnvironmentError:
pass
self._running_portage = None
portage_match = self._running_root.trees["vartree"].dbapi.match(
portage.const.PORTAGE_PACKAGE_ATOM)
if portage_match:
cpv = portage_match.pop()
self._running_portage = self._pkg(cpv, "installed",
self._running_root, installed=True)
def _terminate_tasks(self):
self._status_display.quiet = True
# Remove running_tasks that have been added to queues but
# haven't been started yet, since we're going to discard
# them and their start/exit handlers won't be called.
for build in self._task_queues.jobs._task_queue:
self._running_tasks.remove(build.pkg)
if self._merge_wait_queue:
for merge in self._merge_wait_queue:
self._running_tasks.remove(merge.merge.pkg)
self._merge_wait_queue.clear()
for merge in self._task_queues.merge._task_queue:
# Setup phases may be scheduled in this queue, but
# we're only interested in the PackageMerge instances.
if isinstance(merge, PackageMerge):
self._running_tasks.remove(merge.merge.pkg)
for q in self._task_queues.values():
q.clear()
def _init_graph(self, graph_config):
"""
Initialization structures used for dependency calculations
involving currently installed packages.
"""
self._set_graph_config(graph_config)
self._blocker_db = {}
for root in self.trees:
if graph_config is None:
fake_vartree = FakeVartree(self.trees[root]["root_config"],
pkg_cache=self._pkg_cache)
fake_vartree.sync()
else:
fake_vartree = graph_config.trees[root]['vartree']
self._blocker_db[root] = BlockerDB(fake_vartree)
def _destroy_graph(self):
"""
Use this to free memory at the beginning of _calc_resume_list().
After _calc_resume_list(), the _init_graph() method
must to be called in order to re-generate the structures that
this method destroys.
"""
self._blocker_db = None
self._set_graph_config(None)
gc.collect()
def _poll(self, timeout=None):
self._schedule()
if timeout is None:
while True:
if not self._poll_event_handlers:
self._schedule()
if not self._poll_event_handlers:
raise StopIteration(
"timeout is None and there are no poll() event handlers")
previous_count = len(self._poll_event_queue)
PollScheduler._poll(self, timeout=self._max_display_latency)
self._status_display.display()
if previous_count != len(self._poll_event_queue):
break
elif timeout <= self._max_display_latency:
PollScheduler._poll(self, timeout=timeout)
if timeout == 0:
# The display is updated by _schedule() above, so it would be
# redundant to update it here when timeout is 0.
pass
else:
self._status_display.display()
else:
remaining_timeout = timeout
start_time = time.time()
while True:
previous_count = len(self._poll_event_queue)
PollScheduler._poll(self,
timeout=min(self._max_display_latency, remaining_timeout))
self._status_display.display()
if previous_count != len(self._poll_event_queue):
break
elapsed_time = time.time() - start_time
if elapsed_time < 0:
# The system clock has changed such that start_time
# is now in the future, so just assume that the
# timeout has already elapsed.
break
remaining_timeout = timeout - 1000 * elapsed_time
if remaining_timeout <= 0:
break
def _set_max_jobs(self, max_jobs):
self._max_jobs = max_jobs
self._task_queues.jobs.max_jobs = max_jobs
def _background_mode(self):
"""
Check if background mode is enabled and adjust states as necessary.
@rtype: bool
@returns: True if background mode is enabled, False otherwise.
"""
background = (self._max_jobs is True or \
self._max_jobs > 1 or "--quiet" in self.myopts \
or "--quiet-build" in self.myopts) and \
not bool(self._opts_no_background.intersection(self.myopts))
if background:
interactive_tasks = self._get_interactive_tasks()
if interactive_tasks:
background = False
writemsg_level(">>> Sending package output to stdio due " + \
"to interactive package(s):\n",
level=logging.INFO, noiselevel=-1)
msg = [""]
for pkg in interactive_tasks:
pkg_str = " " + colorize("INFORM", str(pkg.cpv))
if pkg.root != "/":
pkg_str += " for " + pkg.root
msg.append(pkg_str)
msg.append("")
writemsg_level("".join("%s\n" % (l,) for l in msg),
level=logging.INFO, noiselevel=-1)
if self._max_jobs is True or self._max_jobs > 1:
self._set_max_jobs(1)
writemsg_level(">>> Setting --jobs=1 due " + \
"to the above interactive package(s)\n",
level=logging.INFO, noiselevel=-1)
writemsg_level(">>> In order to temporarily mask " + \
"interactive updates, you may\n" + \
">>> specify --accept-properties=-interactive\n",
level=logging.INFO, noiselevel=-1)
self._status_display.quiet = \
not background or \
("--quiet" in self.myopts and \
"--verbose" not in self.myopts)
self._logger.xterm_titles = \
"notitles" not in self.settings.features and \
self._status_display.quiet
return background
def _get_interactive_tasks(self):
interactive_tasks = []
for task in self._mergelist:
if not (isinstance(task, Package) and \
task.operation == "merge"):
continue
if 'interactive' in task.metadata.properties:
interactive_tasks.append(task)
return interactive_tasks
def _set_graph_config(self, graph_config):
if graph_config is None:
self._graph_config = None
self._pkg_cache = {}
self._digraph = None
self._mergelist = []
self._deep_system_deps.clear()
return
self._graph_config = graph_config
self._pkg_cache = graph_config.pkg_cache
self._digraph = graph_config.graph
self._mergelist = graph_config.mergelist
if "--nodeps" in self.myopts or \
(self._max_jobs is not True and self._max_jobs < 2):
# save some memory
self._digraph = None
graph_config.graph = None
graph_config.pkg_cache.clear()
self._deep_system_deps.clear()
for pkg in self._mergelist:
self._pkg_cache[pkg] = pkg
return
self._find_system_deps()
self._prune_digraph()
self._prevent_builddir_collisions()
if '--debug' in self.myopts:
writemsg("\nscheduler digraph:\n\n", noiselevel=-1)
self._digraph.debug_print()
writemsg("\n", noiselevel=-1)
def _find_system_deps(self):
"""
Find system packages and their deep runtime dependencies. Before being
merged, these packages go to merge_wait_queue, to be merged when no
other packages are building.
NOTE: This can only find deep system deps if the system set has been
added to the graph and traversed deeply (the depgraph "complete"
parameter will do this, triggered by emerge --complete-graph option).
"""
deep_system_deps = self._deep_system_deps
deep_system_deps.clear()
deep_system_deps.update(
_find_deep_system_runtime_deps(self._digraph))
deep_system_deps.difference_update([pkg for pkg in \
deep_system_deps if pkg.operation != "merge"])
def _prune_digraph(self):
"""
Prune any root nodes that are irrelevant.
"""
graph = self._digraph
completed_tasks = self._completed_tasks
removed_nodes = set()
while True:
for node in graph.root_nodes():
if not isinstance(node, Package) or \
(node.installed and node.operation == "nomerge") or \
node.onlydeps or \
node in completed_tasks:
removed_nodes.add(node)
if removed_nodes:
graph.difference_update(removed_nodes)
if not removed_nodes:
break
removed_nodes.clear()
def _prevent_builddir_collisions(self):
"""
When building stages, sometimes the same exact cpv needs to be merged
to both $ROOTs. Add edges to the digraph in order to avoid collisions
in the builddir. Currently, normal file locks would be inappropriate
for this purpose since emerge holds all of it's build dir locks from
the main process.
"""
cpv_map = {}
for pkg in self._mergelist:
if not isinstance(pkg, Package):
# a satisfied blocker
continue
if pkg.installed:
continue
if pkg.cpv not in cpv_map:
cpv_map[pkg.cpv] = [pkg]
continue
for earlier_pkg in cpv_map[pkg.cpv]:
self._digraph.add(earlier_pkg, pkg,
priority=DepPriority(buildtime=True))
cpv_map[pkg.cpv].append(pkg)
class _pkg_failure(portage.exception.PortageException):
"""
An instance of this class is raised by unmerge() when
an uninstallation fails.
"""
status = 1
def __init__(self, *pargs):
portage.exception.PortageException.__init__(self, pargs)
if pargs:
self.status = pargs[0]
def _schedule_fetch(self, fetcher):
"""
Schedule a fetcher on the fetch queue, in order to
serialize access to the fetch log.
"""
self._task_queues.fetch.addFront(fetcher)
def _schedule_setup(self, setup_phase):
"""
Schedule a setup phase on the merge queue, in order to
serialize unsandboxed access to the live filesystem.
"""
self._task_queues.merge.add(setup_phase)
self._schedule()
def _schedule_unpack(self, unpack_phase):
"""
Schedule an unpack phase on the unpack queue, in order
to serialize $DISTDIR access for live ebuilds.
"""
self._task_queues.unpack.add(unpack_phase)
def _find_blockers(self, new_pkg):
"""
Returns a callable.
"""
def get_blockers():
return self._find_blockers_impl(new_pkg)
return get_blockers
def _find_blockers_impl(self, new_pkg):
if self._opts_ignore_blockers.intersection(self.myopts):
return None
blocker_db = self._blocker_db[new_pkg.root]
blocker_dblinks = []
for blocking_pkg in blocker_db.findInstalledBlockers(new_pkg):
if new_pkg.slot_atom == blocking_pkg.slot_atom:
continue
if new_pkg.cpv == blocking_pkg.cpv:
continue
blocker_dblinks.append(portage.dblink(
blocking_pkg.category, blocking_pkg.pf, blocking_pkg.root,
self.pkgsettings[blocking_pkg.root], treetype="vartree",
vartree=self.trees[blocking_pkg.root]["vartree"]))
return blocker_dblinks
def _dblink_pkg(self, pkg_dblink):
cpv = pkg_dblink.mycpv
type_name = RootConfig.tree_pkg_map[pkg_dblink.treetype]
root_config = self.trees[pkg_dblink.myroot]["root_config"]
installed = type_name == "installed"
return self._pkg(cpv, type_name, root_config, installed=installed)
def _dblink_elog(self, pkg_dblink, phase, func, msgs):
log_path = pkg_dblink.settings.get("PORTAGE_LOG_FILE")
out = StringIO()
for msg in msgs:
func(msg, phase=phase, key=pkg_dblink.mycpv, out=out)
out_str = out.getvalue()
self._task_output(out_str, log_path=log_path)
def _dblink_emerge_log(self, msg):
self._logger.log(msg)
def _dblink_display_merge(self, pkg_dblink, msg, level=0, noiselevel=0):
log_path = pkg_dblink.settings.get("PORTAGE_LOG_FILE")
background = self._background
if log_path is None:
if not (background and level < logging.WARN):
portage.util.writemsg_level(msg,
level=level, noiselevel=noiselevel)
else:
self._task_output(msg, log_path=log_path)
def _dblink_ebuild_phase(self,
pkg_dblink, pkg_dbapi, ebuild_path, phase):
"""
Using this callback for merge phases allows the scheduler
to run while these phases execute asynchronously, and allows
the scheduler control output handling.
"""
scheduler = self._sched_iface
settings = pkg_dblink.settings
background = self._background
log_path = settings.get("PORTAGE_LOG_FILE")
if phase in ('die_hooks', 'success_hooks'):
ebuild_phase = MiscFunctionsProcess(background=background,
commands=[phase], phase=phase,
scheduler=scheduler, settings=settings)
else:
ebuild_phase = EbuildPhase(background=background,
phase=phase, scheduler=scheduler,
settings=settings)
ebuild_phase.start()
ebuild_phase.wait()
return ebuild_phase.returncode
def _generate_digests(self):
"""
Generate digests if necessary for --digests or FEATURES=digest.
In order to avoid interference, this must done before parallel
tasks are started.
"""
if '--fetchonly' in self.myopts:
return os.EX_OK
digest = '--digest' in self.myopts
if not digest:
for pkgsettings in self.pkgsettings.values():
if pkgsettings.mycpv is not None:
# ensure that we are using global features
# settings rather than those from package.env
pkgsettings.reset()
if 'digest' in pkgsettings.features:
digest = True
break
if not digest:
return os.EX_OK
for x in self._mergelist:
if not isinstance(x, Package) or \
x.type_name != 'ebuild' or \
x.operation != 'merge':
continue
pkgsettings = self.pkgsettings[x.root]
if pkgsettings.mycpv is not None:
# ensure that we are using global features
# settings rather than those from package.env
pkgsettings.reset()
if '--digest' not in self.myopts and \
'digest' not in pkgsettings.features:
continue
portdb = x.root_config.trees['porttree'].dbapi
ebuild_path = portdb.findname(x.cpv)
if ebuild_path is None:
raise AssertionError("ebuild not found for '%s'" % x.cpv)
pkgsettings['O'] = os.path.dirname(ebuild_path)
if not digestgen(mysettings=pkgsettings, myportdb=portdb):
writemsg_level(
"!!! Unable to generate manifest for '%s'.\n" \
% x.cpv, level=logging.ERROR, noiselevel=-1)
return 1
return os.EX_OK
def _env_sanity_check(self):
"""
Verify a sane environment before trying to build anything from source.
"""
have_src_pkg = False
for x in self._mergelist:
if isinstance(x, Package) and not x.built:
have_src_pkg = True
break
if not have_src_pkg:
return os.EX_OK
for settings in self.pkgsettings.values():
for var in ("ARCH", ):
value = settings.get(var)
if value and value.strip():
continue
msg = _("%(var)s is not set... "
"Are you missing the '%(configroot)setc/make.profile' symlink? "
"Is the symlink correct? "
"Is your portage tree complete?") % \
{"var": var, "configroot": settings["PORTAGE_CONFIGROOT"]}
out = portage.output.EOutput()
for line in textwrap.wrap(msg, 70):
out.eerror(line)
return 1
return os.EX_OK
def _check_manifests(self):
# Verify all the manifests now so that the user is notified of failure
# as soon as possible.
if "strict" not in self.settings.features or \
"--fetchonly" in self.myopts or \
"--fetch-all-uri" in self.myopts:
return os.EX_OK
shown_verifying_msg = False
quiet_settings = {}
for myroot, pkgsettings in self.pkgsettings.items():
quiet_config = portage.config(clone=pkgsettings)
quiet_config["PORTAGE_QUIET"] = "1"
quiet_config.backup_changes("PORTAGE_QUIET")
quiet_settings[myroot] = quiet_config
del quiet_config
failures = 0
for x in self._mergelist:
if not isinstance(x, Package) or \
x.type_name != "ebuild":
continue
if x.operation == "uninstall":
continue
if not shown_verifying_msg:
shown_verifying_msg = True
self._status_msg("Verifying ebuild manifests")
root_config = x.root_config
portdb = root_config.trees["porttree"].dbapi
quiet_config = quiet_settings[root_config.root]
ebuild_path = portdb.findname(x.cpv)
if ebuild_path is None:
raise AssertionError("ebuild not found for '%s'" % x.cpv)
quiet_config["O"] = os.path.dirname(ebuild_path)
if not digestcheck([], quiet_config, strict=True):
failures |= 1
if failures:
return 1
return os.EX_OK
def _add_prefetchers(self):
if not self._parallel_fetch:
return
if self._parallel_fetch:
self._status_msg("Starting parallel fetch")
prefetchers = self._prefetchers
getbinpkg = "--getbinpkg" in self.myopts
# In order to avoid "waiting for lock" messages
# at the beginning, which annoy users, never
# spawn a prefetcher for the first package.
for pkg in self._mergelist[1:]:
# mergelist can contain solved Blocker instances
if not isinstance(pkg, Package) or pkg.operation == "uninstall":
continue
prefetcher = self._create_prefetcher(pkg)
if prefetcher is not None:
self._task_queues.fetch.add(prefetcher)
prefetchers[pkg] = prefetcher
def _create_prefetcher(self, pkg):
"""
@return: a prefetcher, or None if not applicable
"""
prefetcher = None
if not isinstance(pkg, Package):
pass
elif pkg.type_name == "ebuild":
prefetcher = EbuildFetcher(background=True,
config_pool=self._ConfigPool(pkg.root,
self._allocate_config, self._deallocate_config),
fetchonly=1, logfile=self._fetch_log,
pkg=pkg, prefetch=True, scheduler=self._sched_iface)
elif pkg.type_name == "binary" and \
"--getbinpkg" in self.myopts and \
pkg.root_config.trees["bintree"].isremote(pkg.cpv):
prefetcher = BinpkgPrefetcher(background=True,
pkg=pkg, scheduler=self._sched_iface)
return prefetcher
def _is_restart_scheduled(self):
"""
Check if the merge list contains a replacement
for the current running instance, that will result
in restart after merge.
@rtype: bool
@returns: True if a restart is scheduled, False otherwise.
"""
if self._opts_no_restart.intersection(self.myopts):
return False
mergelist = self._mergelist
for i, pkg in enumerate(mergelist):
if self._is_restart_necessary(pkg) and \
i != len(mergelist) - 1:
return True
return False
def _is_restart_necessary(self, pkg):
"""
@return: True if merging the given package
requires restart, False otherwise.
"""
# Figure out if we need a restart.
if pkg.root == self._running_root.root and \
portage.match_from_list(
portage.const.PORTAGE_PACKAGE_ATOM, [pkg]):
if self._running_portage is None:
return True
elif pkg.cpv != self._running_portage.cpv or \
'9999' in pkg.cpv or \
'git' in pkg.inherited or \
'git-2' in pkg.inherited:
return True
return False
def _restart_if_necessary(self, pkg):
"""
Use execv() to restart emerge. This happens
if portage upgrades itself and there are
remaining packages in the list.
"""
if self._opts_no_restart.intersection(self.myopts):
return
if not self._is_restart_necessary(pkg):
return
if pkg == self._mergelist[-1]:
return
self._main_loop_cleanup()
logger = self._logger
pkg_count = self._pkg_count
mtimedb = self._mtimedb
bad_resume_opts = self._bad_resume_opts
logger.log(" ::: completed emerge (%s of %s) %s to %s" % \
(pkg_count.curval, pkg_count.maxval, pkg.cpv, pkg.root))
logger.log(" *** RESTARTING " + \
"emerge via exec() after change of " + \
"portage version.")
mtimedb["resume"]["mergelist"].remove(list(pkg))
mtimedb.commit()
portage.run_exitfuncs()
# Don't trust sys.argv[0] here because eselect-python may modify it.
emerge_binary = os.path.join(portage.const.PORTAGE_BIN_PATH, 'emerge')
mynewargv = [emerge_binary, "--resume"]
resume_opts = self.myopts.copy()
# For automatic resume, we need to prevent
# any of bad_resume_opts from leaking in
# via EMERGE_DEFAULT_OPTS.
resume_opts["--ignore-default-opts"] = True
for myopt, myarg in resume_opts.items():
if myopt not in bad_resume_opts:
if myarg is True:
mynewargv.append(myopt)
elif isinstance(myarg, list):
# arguments like --exclude that use 'append' action
for x in myarg:
mynewargv.append("%s=%s" % (myopt, x))
else:
mynewargv.append("%s=%s" % (myopt, myarg))
# priority only needs to be adjusted on the first run
os.environ["PORTAGE_NICENESS"] = "0"
os.execv(mynewargv[0], mynewargv)
def _run_pkg_pretend(self):
"""
Since pkg_pretend output may be important, this method sends all
output directly to stdout (regardless of options like --quiet or
--jobs).
"""
failures = 0
# Use a local PollScheduler instance here, since we don't
# want tasks here to trigger the usual Scheduler callbacks
# that handle job scheduling and status display.
sched_iface = PollScheduler().sched_iface
for x in self._mergelist:
if not isinstance(x, Package):
continue
if x.operation == "uninstall":
continue
if x.metadata["EAPI"] in ("0", "1", "2", "3"):
continue
if "pretend" not in x.metadata.defined_phases:
continue
out_str =">>> Running pre-merge checks for " + colorize("INFORM", x.cpv) + "\n"
portage.util.writemsg_stdout(out_str, noiselevel=-1)
root_config = x.root_config
settings = self.pkgsettings[root_config.root]
settings.setcpv(x)
tmpdir = tempfile.mkdtemp()
tmpdir_orig = settings["PORTAGE_TMPDIR"]
settings["PORTAGE_TMPDIR"] = tmpdir
try:
if x.built:
tree = "bintree"
bintree = root_config.trees["bintree"].dbapi.bintree
fetched = False
# Display fetch on stdout, so that it's always clear what
# is consuming time here.
if bintree.isremote(x.cpv):
fetcher = BinpkgFetcher(pkg=x,
scheduler=sched_iface)
fetcher.start()
if fetcher.wait() != os.EX_OK:
failures += 1
continue
fetched = fetcher.pkg_path
verifier = BinpkgVerifier(pkg=x,
scheduler=sched_iface)
verifier.start()
if verifier.wait() != os.EX_OK:
failures += 1
continue
if fetched:
bintree.inject(x.cpv, filename=fetched)
tbz2_file = bintree.getname(x.cpv)
infloc = os.path.join(tmpdir, x.category, x.pf, "build-info")
os.makedirs(infloc)
portage.xpak.tbz2(tbz2_file).unpackinfo(infloc)
ebuild_path = os.path.join(infloc, x.pf + ".ebuild")
settings.configdict["pkg"]["EMERGE_FROM"] = "binary"
settings.configdict["pkg"]["MERGE_TYPE"] = "binary"
else:
tree = "porttree"
portdb = root_config.trees["porttree"].dbapi
ebuild_path = portdb.findname(x.cpv)
if ebuild_path is None:
raise AssertionError("ebuild not found for '%s'" % x.cpv)
settings.configdict["pkg"]["EMERGE_FROM"] = "ebuild"
if self._build_opts.buildpkgonly:
settings.configdict["pkg"]["MERGE_TYPE"] = "buildonly"
else:
settings.configdict["pkg"]["MERGE_TYPE"] = "source"
portage.package.ebuild.doebuild.doebuild_environment(ebuild_path,
"pretend", settings=settings,
db=self.trees[settings["ROOT"]][tree].dbapi)
prepare_build_dirs(root_config.root, settings, cleanup=0)
vardb = root_config.trees['vartree'].dbapi
settings["REPLACING_VERSIONS"] = " ".join(
set(portage.versions.cpv_getversion(match) \
for match in vardb.match(x.slot_atom) + \
vardb.match('='+x.cpv)))
pretend_phase = EbuildPhase(
phase="pretend", scheduler=sched_iface,
settings=settings)
pretend_phase.start()
ret = pretend_phase.wait()
if ret != os.EX_OK:
failures += 1
portage.elog.elog_process(x.cpv, settings)
finally:
shutil.rmtree(tmpdir)
settings["PORTAGE_TMPDIR"] = tmpdir_orig
if failures:
return 1
return os.EX_OK
def merge(self):
if "--resume" in self.myopts:
# We're resuming.
portage.writemsg_stdout(
colorize("GOOD", "*** Resuming merge...\n"), noiselevel=-1)
self._logger.log(" *** Resuming merge...")
self._save_resume_list()
try:
self._background = self._background_mode()
except self._unknown_internal_error:
return 1
for root in self.trees:
root_config = self.trees[root]["root_config"]
# Even for --pretend --fetch mode, PORTAGE_TMPDIR is required
# since it might spawn pkg_nofetch which requires PORTAGE_BUILDDIR
# for ensuring sane $PWD (bug #239560) and storing elog messages.
tmpdir = root_config.settings.get("PORTAGE_TMPDIR", "")
if not tmpdir or not os.path.isdir(tmpdir):
msg = "The directory specified in your " + \
"PORTAGE_TMPDIR variable, '%s', " % tmpdir + \
"does not exist. Please create this " + \
"directory or correct your PORTAGE_TMPDIR setting."
msg = textwrap.wrap(msg, 70)
out = portage.output.EOutput()
for l in msg:
out.eerror(l)
return 1
if self._background:
root_config.settings.unlock()
root_config.settings["PORTAGE_BACKGROUND"] = "1"
root_config.settings.backup_changes("PORTAGE_BACKGROUND")
root_config.settings.lock()
self.pkgsettings[root] = portage.config(
clone=root_config.settings)
keep_going = "--keep-going" in self.myopts
fetchonly = self._build_opts.fetchonly
mtimedb = self._mtimedb
failed_pkgs = self._failed_pkgs
rval = self._generate_digests()
if rval != os.EX_OK:
return rval
rval = self._env_sanity_check()
if rval != os.EX_OK:
return rval
# TODO: Immediately recalculate deps here if --keep-going
# is enabled and corrupt manifests are detected.
rval = self._check_manifests()
if rval != os.EX_OK and not keep_going:
return rval
rval = self._run_pkg_pretend()
if rval != os.EX_OK:
return rval
while True:
received_signal = []
def sighandler(signum, frame):
signal.signal(signal.SIGINT, signal.SIG_IGN)
signal.signal(signal.SIGTERM, signal.SIG_IGN)
portage.util.writemsg("\n\nExiting on signal %(signal)s\n" % \
{"signal":signum})
self.terminate()
received_signal.append(128 + signum)
earlier_sigint_handler = signal.signal(signal.SIGINT, sighandler)
earlier_sigterm_handler = signal.signal(signal.SIGTERM, sighandler)
try:
rval = self._merge()
finally:
# Restore previous handlers
if earlier_sigint_handler is not None:
signal.signal(signal.SIGINT, earlier_sigint_handler)
else:
signal.signal(signal.SIGINT, signal.SIG_DFL)
if earlier_sigterm_handler is not None:
signal.signal(signal.SIGTERM, earlier_sigterm_handler)
else:
signal.signal(signal.SIGTERM, signal.SIG_DFL)
if received_signal:
sys.exit(received_signal[0])
if rval == os.EX_OK or fetchonly or not keep_going:
break
if "resume" not in mtimedb:
break
mergelist = self._mtimedb["resume"].get("mergelist")
if not mergelist:
break
if not failed_pkgs:
break
for failed_pkg in failed_pkgs:
mergelist.remove(list(failed_pkg.pkg))
self._failed_pkgs_all.extend(failed_pkgs)
del failed_pkgs[:]
if not mergelist:
break
if not self._calc_resume_list():
break
clear_caches(self.trees)
if not self._mergelist:
break
self._save_resume_list()
self._pkg_count.curval = 0
self._pkg_count.maxval = len([x for x in self._mergelist \
if isinstance(x, Package) and x.operation == "merge"])
self._status_display.maxval = self._pkg_count.maxval
self._logger.log(" *** Finished. Cleaning up...")
if failed_pkgs:
self._failed_pkgs_all.extend(failed_pkgs)
del failed_pkgs[:]
printer = portage.output.EOutput()
background = self._background
failure_log_shown = False
if background and len(self._failed_pkgs_all) == 1:
# If only one package failed then just show it's
# whole log for easy viewing.
failed_pkg = self._failed_pkgs_all[-1]
build_dir = failed_pkg.build_dir
log_file = None
log_paths = [failed_pkg.build_log]
log_path = self._locate_failure_log(failed_pkg)
if log_path is not None:
try:
log_file = open(_unicode_encode(log_path,
encoding=_encodings['fs'], errors='strict'), mode='rb')
except IOError:
pass
else:
if log_path.endswith('.gz'):
log_file = gzip.GzipFile(filename='',
mode='rb', fileobj=log_file)
if log_file is not None:
try:
for line in log_file:
writemsg_level(line, noiselevel=-1)
except zlib.error as e:
writemsg_level("%s\n" % (e,), level=logging.ERROR,
noiselevel=-1)
finally:
log_file.close()
failure_log_shown = True
# Dump mod_echo output now since it tends to flood the terminal.
# This allows us to avoid having more important output, generated
# later, from being swept away by the mod_echo output.
mod_echo_output = _flush_elog_mod_echo()
if background and not failure_log_shown and \
self._failed_pkgs_all and \
self._failed_pkgs_die_msgs and \
not mod_echo_output:
for mysettings, key, logentries in self._failed_pkgs_die_msgs:
root_msg = ""
if mysettings["ROOT"] != "/":
root_msg = " merged to %s" % mysettings["ROOT"]
print()
printer.einfo("Error messages for package %s%s:" % \
(colorize("INFORM", key), root_msg))
print()
for phase in portage.const.EBUILD_PHASES:
if phase not in logentries:
continue
for msgtype, msgcontent in logentries[phase]:
if isinstance(msgcontent, basestring):
msgcontent = [msgcontent]
for line in msgcontent:
printer.eerror(line.strip("\n"))
if self._post_mod_echo_msgs:
for msg in self._post_mod_echo_msgs:
msg()
if len(self._failed_pkgs_all) > 1 or \
(self._failed_pkgs_all and keep_going):
if len(self._failed_pkgs_all) > 1:
msg = "The following %d packages have " % \
len(self._failed_pkgs_all) + \
"failed to build or install:"
else:
msg = "The following package has " + \
"failed to build or install:"
printer.eerror("")
for line in textwrap.wrap(msg, 72):
printer.eerror(line)
printer.eerror("")
for failed_pkg in self._failed_pkgs_all:
# Use _unicode_decode() to force unicode format string so
# that Package.__unicode__() is called in python2.
msg = _unicode_decode(" %s") % (failed_pkg.pkg,)
log_path = self._locate_failure_log(failed_pkg)
if log_path is not None:
msg += ", Log file:"
printer.eerror(msg)
if log_path is not None:
printer.eerror(" '%s'" % colorize('INFORM', log_path))
printer.eerror("")
if self._failed_pkgs_all:
return 1
return os.EX_OK
def _elog_listener(self, mysettings, key, logentries, fulltext):
errors = portage.elog.filter_loglevels(logentries, ["ERROR"])
if errors:
self._failed_pkgs_die_msgs.append(
(mysettings, key, errors))
def _locate_failure_log(self, failed_pkg):
build_dir = failed_pkg.build_dir
log_file = None
log_paths = [failed_pkg.build_log]
for log_path in log_paths:
if not log_path:
continue
try:
log_size = os.stat(log_path).st_size
except OSError:
continue
if log_size == 0:
continue
return log_path
return None
def _add_packages(self):
pkg_queue = self._pkg_queue
for pkg in self._mergelist:
if isinstance(pkg, Package):
pkg_queue.append(pkg)
elif isinstance(pkg, Blocker):
pass
def _system_merge_started(self, merge):
"""
Add any unsatisfied runtime deps to self._unsatisfied_system_deps.
In general, this keeps track of installed system packages with
unsatisfied RDEPEND or PDEPEND (circular dependencies). It can be
a fragile situation, so we don't execute any unrelated builds until
the circular dependencies are built and installed.
"""
graph = self._digraph
if graph is None:
return
pkg = merge.merge.pkg
# Skip this if $ROOT != / since it shouldn't matter if there
# are unsatisfied system runtime deps in this case.
if pkg.root != '/':
return
completed_tasks = self._completed_tasks
unsatisfied = self._unsatisfied_system_deps
def ignore_non_runtime_or_satisfied(priority):
"""
Ignore non-runtime and satisfied runtime priorities.
"""
if isinstance(priority, DepPriority) and \
not priority.satisfied and \
(priority.runtime or priority.runtime_post):
return False
return True
# When checking for unsatisfied runtime deps, only check
# direct deps since indirect deps are checked when the
# corresponding parent is merged.
for child in graph.child_nodes(pkg,
ignore_priority=ignore_non_runtime_or_satisfied):
if not isinstance(child, Package) or \
child.operation == 'uninstall':
continue
if child is pkg:
continue
if child.operation == 'merge' and \
child not in completed_tasks:
unsatisfied.add(child)
def _merge_wait_exit_handler(self, task):
self._merge_wait_scheduled.remove(task)
self._merge_exit(task)
def _merge_exit(self, merge):
self._do_merge_exit(merge)
self._deallocate_config(merge.merge.settings)
if merge.returncode == os.EX_OK and \
not merge.merge.pkg.installed:
self._status_display.curval += 1
self._status_display.merges = len(self._task_queues.merge)
self._schedule()
def _do_merge_exit(self, merge):
pkg = merge.merge.pkg
self._running_tasks.remove(pkg)
if merge.returncode != os.EX_OK:
settings = merge.merge.settings
build_dir = settings.get("PORTAGE_BUILDDIR")
build_log = settings.get("PORTAGE_LOG_FILE")
self._failed_pkgs.append(self._failed_pkg(
build_dir=build_dir, build_log=build_log,
pkg=pkg,
returncode=merge.returncode))
if not self._terminated_tasks:
self._failed_pkg_msg(self._failed_pkgs[-1], "install", "to")
self._status_display.failed = len(self._failed_pkgs)
return
self._task_complete(pkg)
pkg_to_replace = merge.merge.pkg_to_replace
if pkg_to_replace is not None:
# When a package is replaced, mark it's uninstall
# task complete (if any).
if self._digraph is not None and \
pkg_to_replace in self._digraph:
try:
self._pkg_queue.remove(pkg_to_replace)
except ValueError:
pass
self._task_complete(pkg_to_replace)
else:
self._pkg_cache.pop(pkg_to_replace, None)
if pkg.installed:
return
self._restart_if_necessary(pkg)
# Call mtimedb.commit() after each merge so that
# --resume still works after being interrupted
# by reboot, sigkill or similar.
mtimedb = self._mtimedb
mtimedb["resume"]["mergelist"].remove(list(pkg))
if not mtimedb["resume"]["mergelist"]:
del mtimedb["resume"]
mtimedb.commit()
def _build_exit(self, build):
if build.returncode == os.EX_OK and self._terminated_tasks:
# We've been interrupted, so we won't
# add this to the merge queue.
self.curval += 1
self._running_tasks.remove(build.pkg)
self._deallocate_config(build.settings)
elif build.returncode == os.EX_OK:
self.curval += 1
merge = PackageMerge(merge=build)
if not build.build_opts.buildpkgonly and \
build.pkg in self._deep_system_deps:
# Since dependencies on system packages are frequently
# unspecified, merge them only when no builds are executing.
self._merge_wait_queue.append(merge)
merge.addStartListener(self._system_merge_started)
else:
merge.addExitListener(self._merge_exit)
self._task_queues.merge.add(merge)
self._status_display.merges = len(self._task_queues.merge)
else:
self._running_tasks.remove(build.pkg)
settings = build.settings
build_dir = settings.get("PORTAGE_BUILDDIR")
build_log = settings.get("PORTAGE_LOG_FILE")
self._failed_pkgs.append(self._failed_pkg(
build_dir=build_dir, build_log=build_log,
pkg=build.pkg,
returncode=build.returncode))
if not self._terminated_tasks:
self._failed_pkg_msg(self._failed_pkgs[-1], "emerge", "for")
self._status_display.failed = len(self._failed_pkgs)
self._deallocate_config(build.settings)
self._jobs -= 1
self._status_display.running = self._jobs
self._schedule()
def _extract_exit(self, build):
self._build_exit(build)
def _task_complete(self, pkg):
self._completed_tasks.add(pkg)
self._unsatisfied_system_deps.discard(pkg)
self._choose_pkg_return_early = False
blocker_db = self._blocker_db[pkg.root]
blocker_db.discardBlocker(pkg)
def _merge(self):
self._add_prefetchers()
self._add_packages()
pkg_queue = self._pkg_queue
failed_pkgs = self._failed_pkgs
portage.locks._quiet = self._background
portage.elog.add_listener(self._elog_listener)
rval = os.EX_OK
try:
self._main_loop()
finally:
self._main_loop_cleanup()
portage.locks._quiet = False
portage.elog.remove_listener(self._elog_listener)
if failed_pkgs:
rval = failed_pkgs[-1].returncode
return rval
def _main_loop_cleanup(self):
del self._pkg_queue[:]
self._completed_tasks.clear()
self._deep_system_deps.clear()
self._unsatisfied_system_deps.clear()
self._choose_pkg_return_early = False
self._status_display.reset()
self._digraph = None
self._task_queues.fetch.clear()
self._prefetchers.clear()
def _choose_pkg(self):
"""
Choose a task that has all its dependencies satisfied. This is used
for parallel build scheduling, and ensures that we don't build
anything with deep dependencies that have yet to be merged.
"""
if self._choose_pkg_return_early:
return None
if self._digraph is None:
if self._is_work_scheduled() and \
not ("--nodeps" in self.myopts and \
(self._max_jobs is True or self._max_jobs > 1)):
self._choose_pkg_return_early = True
return None
return self._pkg_queue.pop(0)
if not self._is_work_scheduled():
return self._pkg_queue.pop(0)
self._prune_digraph()
chosen_pkg = None
# Prefer uninstall operations when available.
graph = self._digraph
for pkg in self._pkg_queue:
if pkg.operation == 'uninstall' and \
not graph.child_nodes(pkg):
chosen_pkg = pkg
break
if chosen_pkg is None:
later = set(self._pkg_queue)
for pkg in self._pkg_queue:
later.remove(pkg)
if not self._dependent_on_scheduled_merges(pkg, later):
chosen_pkg = pkg
break
if chosen_pkg is not None:
self._pkg_queue.remove(chosen_pkg)
if chosen_pkg is None:
# There's no point in searching for a package to
# choose until at least one of the existing jobs
# completes.
self._choose_pkg_return_early = True
return chosen_pkg
def _dependent_on_scheduled_merges(self, pkg, later):
"""
Traverse the subgraph of the given packages deep dependencies
to see if it contains any scheduled merges.
@param pkg: a package to check dependencies for
@type pkg: Package
@param later: packages for which dependence should be ignored
since they will be merged later than pkg anyway and therefore
delaying the merge of pkg will not result in a more optimal
merge order
@type later: set
@rtype: bool
@returns: True if the package is dependent, False otherwise.
"""
graph = self._digraph
completed_tasks = self._completed_tasks
dependent = False
traversed_nodes = set([pkg])
direct_deps = graph.child_nodes(pkg)
node_stack = direct_deps
direct_deps = frozenset(direct_deps)
while node_stack:
node = node_stack.pop()
if node in traversed_nodes:
continue
traversed_nodes.add(node)
if not ((node.installed and node.operation == "nomerge") or \
(node.operation == "uninstall" and \
node not in direct_deps) or \
node in completed_tasks or \
node in later):
dependent = True
break
# Don't traverse children of uninstall nodes since
# those aren't dependencies in the usual sense.
if node.operation != "uninstall":
node_stack.extend(graph.child_nodes(node))
return dependent
def _allocate_config(self, root):
"""
Allocate a unique config instance for a task in order
to prevent interference between parallel tasks.
"""
if self._config_pool[root]:
temp_settings = self._config_pool[root].pop()
else:
temp_settings = portage.config(clone=self.pkgsettings[root])
# Since config.setcpv() isn't guaranteed to call config.reset() due to
# performance reasons, call it here to make sure all settings from the
# previous package get flushed out (such as PORTAGE_LOG_FILE).
temp_settings.reload()
temp_settings.reset()
return temp_settings
def _deallocate_config(self, settings):
self._config_pool[settings["ROOT"]].append(settings)
def _main_loop(self):
# Only allow 1 job max if a restart is scheduled
# due to portage update.
if self._is_restart_scheduled() or \
self._opts_no_background.intersection(self.myopts):
self._set_max_jobs(1)
while self._schedule():
self._poll_loop()
while True:
self._schedule()
if not self._is_work_scheduled():
break
self._poll_loop()
def _keep_scheduling(self):
return bool(not self._terminated_tasks and self._pkg_queue and \
not (self._failed_pkgs and not self._build_opts.fetchonly))
def _is_work_scheduled(self):
return bool(self._running_tasks)
def _schedule_tasks(self):
while True:
# When the number of jobs and merges drops to zero,
# process a single merge from _merge_wait_queue if
# it's not empty. We only process one since these are
# special packages and we want to ensure that
# parallel-install does not cause more than one of
# them to install at the same time.
if (self._merge_wait_queue and not self._jobs and
not self._task_queues.merge):
task = self._merge_wait_queue.popleft()
task.addExitListener(self._merge_wait_exit_handler)
self._task_queues.merge.add(task)
self._status_display.merges = len(self._task_queues.merge)
self._merge_wait_scheduled.append(task)
self._schedule_tasks_imp()
self._status_display.display()
state_change = 0
for q in self._task_queues.values():
if q.schedule():
state_change += 1
# Cancel prefetchers if they're the only reason
# the main poll loop is still running.
if self._failed_pkgs and not self._build_opts.fetchonly and \
not self._is_work_scheduled() and \
self._task_queues.fetch:
self._task_queues.fetch.clear()
state_change += 1
if not (state_change or \
(self._merge_wait_queue and not self._jobs and
not self._task_queues.merge)):
break
return self._keep_scheduling()
def _job_delay(self):
"""
@rtype: bool
@returns: True if job scheduling should be delayed, False otherwise.
"""
if self._jobs and self._max_load is not None:
current_time = time.time()
delay = self._job_delay_factor * self._jobs ** self._job_delay_exp
if delay > self._job_delay_max:
delay = self._job_delay_max
if (current_time - self._previous_job_start_time) < delay:
return True
return False
def _schedule_tasks_imp(self):
"""
@rtype: bool
@returns: True if state changed, False otherwise.
"""
state_change = 0
while True:
if not self._keep_scheduling():
return bool(state_change)
if self._choose_pkg_return_early or \
self._merge_wait_scheduled or \
(self._jobs and self._unsatisfied_system_deps) or \
not self._can_add_job() or \
self._job_delay():
return bool(state_change)
pkg = self._choose_pkg()
if pkg is None:
return bool(state_change)
state_change += 1
if not pkg.installed:
self._pkg_count.curval += 1
task = self._task(pkg)
self._running_tasks.add(pkg)
if pkg.installed:
merge = PackageMerge(merge=task)
merge.addExitListener(self._merge_exit)
self._task_queues.merge.addFront(merge)
elif pkg.built:
self._jobs += 1
self._previous_job_start_time = time.time()
self._status_display.running = self._jobs
task.addExitListener(self._extract_exit)
self._task_queues.jobs.add(task)
else:
self._jobs += 1
self._previous_job_start_time = time.time()
self._status_display.running = self._jobs
task.addExitListener(self._build_exit)
self._task_queues.jobs.add(task)
return bool(state_change)
def _task(self, pkg):
pkg_to_replace = None
if pkg.operation != "uninstall":
vardb = pkg.root_config.trees["vartree"].dbapi
previous_cpv = [x for x in vardb.match(pkg.slot_atom) \
if portage.cpv_getkey(x) == pkg.cp]
if not previous_cpv and vardb.cpv_exists(pkg.cpv):
# same cpv, different SLOT
previous_cpv = [pkg.cpv]
if previous_cpv:
previous_cpv = previous_cpv.pop()
pkg_to_replace = self._pkg(previous_cpv,
"installed", pkg.root_config, installed=True,
operation="uninstall")
prefetcher = self._prefetchers.pop(pkg, None)
if prefetcher is not None and not prefetcher.isAlive():
try:
self._task_queues.fetch._task_queue.remove(prefetcher)
except ValueError:
pass
prefetcher = None
task = MergeListItem(args_set=self._args_set,
background=self._background, binpkg_opts=self._binpkg_opts,
build_opts=self._build_opts,
config_pool=self._ConfigPool(pkg.root,
self._allocate_config, self._deallocate_config),
emerge_opts=self.myopts,
find_blockers=self._find_blockers(pkg), logger=self._logger,
mtimedb=self._mtimedb, pkg=pkg, pkg_count=self._pkg_count.copy(),
pkg_to_replace=pkg_to_replace,
prefetcher=prefetcher,
scheduler=self._sched_iface,
settings=self._allocate_config(pkg.root),
statusMessage=self._status_msg,
world_atom=self._world_atom)
return task
def _failed_pkg_msg(self, failed_pkg, action, preposition):
pkg = failed_pkg.pkg
msg = "%s to %s %s" % \
(bad("Failed"), action, colorize("INFORM", pkg.cpv))
if pkg.root != "/":
msg += " %s %s" % (preposition, pkg.root)
log_path = self._locate_failure_log(failed_pkg)
if log_path is not None:
msg += ", Log file:"
self._status_msg(msg)
if log_path is not None:
self._status_msg(" '%s'" % (colorize("INFORM", log_path),))
def _status_msg(self, msg):
"""
Display a brief status message (no newlines) in the status display.
This is called by tasks to provide feedback to the user. This
delegates the resposibility of generating \r and \n control characters,
to guarantee that lines are created or erased when necessary and
appropriate.
@type msg: str
@param msg: a brief status message (no newlines allowed)
"""
if not self._background:
writemsg_level("\n")
self._status_display.displayMessage(msg)
def _save_resume_list(self):
"""
Do this before verifying the ebuild Manifests since it might
be possible for the user to use --resume --skipfirst get past
a non-essential package with a broken digest.
"""
mtimedb = self._mtimedb
mtimedb["resume"] = {}
# Stored as a dict starting with portage-2.1.6_rc1, and supported
# by >=portage-2.1.3_rc8. Versions <portage-2.1.3_rc8 only support
# a list type for options.
mtimedb["resume"]["myopts"] = self.myopts.copy()
# Convert Atom instances to plain str.
mtimedb["resume"]["favorites"] = [str(x) for x in self._favorites]
mtimedb["resume"]["mergelist"] = [list(x) \
for x in self._mergelist \
if isinstance(x, Package) and x.operation == "merge"]
mtimedb.commit()
def _calc_resume_list(self):
"""
Use the current resume list to calculate a new one,
dropping any packages with unsatisfied deps.
@rtype: bool
@returns: True if successful, False otherwise.
"""
print(colorize("GOOD", "*** Resuming merge..."))
# free some memory before creating
# the resume depgraph
self._destroy_graph()
myparams = create_depgraph_params(self.myopts, None)
success = False
e = None
try:
success, mydepgraph, dropped_tasks = resume_depgraph(
self.settings, self.trees, self._mtimedb, self.myopts,
myparams, self._spinner)
except depgraph.UnsatisfiedResumeDep as exc:
# rename variable to avoid python-3.0 error:
# SyntaxError: can not delete variable 'e' referenced in nested
# scope
e = exc
mydepgraph = e.depgraph
dropped_tasks = set()
if e is not None:
def unsatisfied_resume_dep_msg():
mydepgraph.display_problems()
out = portage.output.EOutput()
out.eerror("One or more packages are either masked or " + \
"have missing dependencies:")
out.eerror("")
indent = " "
show_parents = set()
for dep in e.value:
if dep.parent in show_parents:
continue
show_parents.add(dep.parent)
if dep.atom is None:
out.eerror(indent + "Masked package:")
out.eerror(2 * indent + str(dep.parent))
out.eerror("")
else:
out.eerror(indent + str(dep.atom) + " pulled in by:")
out.eerror(2 * indent + str(dep.parent))
out.eerror("")
msg = "The resume list contains packages " + \
"that are either masked or have " + \
"unsatisfied dependencies. " + \
"Please restart/continue " + \
"the operation manually, or use --skipfirst " + \
"to skip the first package in the list and " + \
"any other packages that may be " + \
"masked or have missing dependencies."
for line in textwrap.wrap(msg, 72):
out.eerror(line)
self._post_mod_echo_msgs.append(unsatisfied_resume_dep_msg)
return False
if success and self._show_list():
mylist = mydepgraph.altlist()
if mylist:
if "--tree" in self.myopts:
mylist.reverse()
mydepgraph.display(mylist, favorites=self._favorites)
if not success:
self._post_mod_echo_msgs.append(mydepgraph.display_problems)
return False
mydepgraph.display_problems()
self._init_graph(mydepgraph.schedulerGraph())
msg_width = 75
for task in dropped_tasks:
if not (isinstance(task, Package) and task.operation == "merge"):
continue
pkg = task
msg = "emerge --keep-going:" + \
" %s" % (pkg.cpv,)
if pkg.root != "/":
msg += " for %s" % (pkg.root,)
msg += " dropped due to unsatisfied dependency."
for line in textwrap.wrap(msg, msg_width):
eerror(line, phase="other", key=pkg.cpv)
settings = self.pkgsettings[pkg.root]
# Ensure that log collection from $T is disabled inside
# elog_process(), since any logs that might exist are
# not valid here.
settings.pop("T", None)
portage.elog.elog_process(pkg.cpv, settings)
self._failed_pkgs_all.append(self._failed_pkg(pkg=pkg))
return True
def _show_list(self):
myopts = self.myopts
if "--quiet" not in myopts and \
("--ask" in myopts or "--tree" in myopts or \
"--verbose" in myopts):
return True
return False
def _world_atom(self, pkg):
"""
Add or remove the package to the world file, but only if
it's supposed to be added or removed. Otherwise, do nothing.
"""
if set(("--buildpkgonly", "--fetchonly",
"--fetch-all-uri",
"--oneshot", "--onlydeps",
"--pretend")).intersection(self.myopts):
return
if pkg.root != self.target_root:
return
args_set = self._args_set
if not args_set.findAtomForPackage(pkg):
return
logger = self._logger
pkg_count = self._pkg_count
root_config = pkg.root_config
world_set = root_config.sets["selected"]
world_locked = False
if hasattr(world_set, "lock"):
world_set.lock()
world_locked = True
try:
if hasattr(world_set, "load"):
world_set.load() # maybe it's changed on disk
if pkg.operation == "uninstall":
if hasattr(world_set, "cleanPackage"):
world_set.cleanPackage(pkg.root_config.trees["vartree"].dbapi,
pkg.cpv)
if hasattr(world_set, "remove"):
for s in pkg.root_config.setconfig.active:
world_set.remove(SETPREFIX+s)
else:
atom = create_world_atom(pkg, args_set, root_config)
if atom:
if hasattr(world_set, "add"):
self._status_msg(('Recording %s in "world" ' + \
'favorites file...') % atom)
logger.log(" === (%s of %s) Updating world file (%s)" % \
(pkg_count.curval, pkg_count.maxval, pkg.cpv))
world_set.add(atom)
else:
writemsg_level('\n!!! Unable to record %s in "world"\n' % \
(atom,), level=logging.WARN, noiselevel=-1)
finally:
if world_locked:
world_set.unlock()
def _pkg(self, cpv, type_name, root_config, installed=False,
operation=None):
"""
Get a package instance from the cache, or create a new
one if necessary. Raises KeyError from aux_get if it
failures for some reason (package does not exist or is
corrupt).
"""
if operation is None:
if installed:
operation = "nomerge"
else:
operation = "merge"
# Reuse existing instance when available.
pkg = self._pkg_cache.get(
(type_name, root_config.root, cpv, operation))
if pkg is not None:
return pkg
tree_type = depgraph.pkg_tree_map[type_name]
db = root_config.trees[tree_type].dbapi
db_keys = list(self.trees[root_config.root][
tree_type].dbapi._aux_cache_keys)
metadata = zip(db_keys, db.aux_get(cpv, db_keys))
pkg = Package(built=(type_name != "ebuild"),
cpv=cpv, installed=installed, metadata=metadata,
root_config=root_config, type_name=type_name)
self._pkg_cache[pkg] = pkg
return pkg
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