def _ensure_dirs(self, path=None): """with path!=None, ensure beyond self.location. otherwise, ensure self.location""" if path: path = os.path.dirname(path) base = self.location else: path = self.location base='/' for dir in path.lstrip(os.path.sep).rstrip(os.path.sep).split(os.path.sep): base = os.path.join(base,dir) if not os.path.exists(base): if self._perms != -1: um = os.umask(0) try: perms = self._perms if perms == -1: perms = 0 perms |= 0o755 os.mkdir(base, perms) if self._gid != -1: os.chown(base, -1, self._gid) finally: if self._perms != -1: os.umask(um)
def __init__(self, settings, logger):
self.settings = settings
self.logger = logger
# Similar to emerge, sync needs a default umask so that created
# files have sane permissions.
os.umask(0o22)
self.module_controller = portage.sync.module_controller
self.module_names = self.module_controller.module_names
self.hooks = {}
for _dir in ["repo.postsync.d", "postsync.d"]:
postsync_dir = os.path.join(self.settings["PORTAGE_CONFIGROOT"],
portage.USER_CONFIG_PATH, _dir)
hooks = OrderedDict()
for filepath in util._recursive_file_list(postsync_dir):
name = filepath.split(postsync_dir)[1].lstrip(os.sep)
if os.access(filepath, os.X_OK):
hooks[filepath] = name
else:
writemsg_level(" %s %s hook: '%s' is not executable\n" % (
warn("*"),
_dir,
_unicode_decode(name),
),
level=logging.WARN,
noiselevel=2)
self.hooks[_dir] = hooks
def emerge_main(args=None, build_dict=None):
"""
@param args: command arguments (default: sys.argv[1:])
@type args: list
@param build_dict: info of the build_job
@type build_dict: dict
"""
if args is None:
args = sys.argv[1:]
if build_dict is None:
build_dict = {}
# Disable color until we're sure that it should be enabled (after
# EMERGE_DEFAULT_OPTS has been parsed).
portage.output.havecolor = 0
# This first pass is just for options that need to be known as early as
# possible, such as --config-root. They will be parsed again later,
# together with EMERGE_DEFAULT_OPTS (which may vary depending on the
# the value of --config-root).
myaction, myopts, myfiles = parse_opts(args, silent=True)
if "--debug" in myopts:
os.environ["PORTAGE_DEBUG"] = "1"
if "--config-root" in myopts:
os.environ["PORTAGE_CONFIGROOT"] = myopts["--config-root"]
if "--root" in myopts:
os.environ["ROOT"] = myopts["--root"]
if "--accept-properties" in myopts:
os.environ["ACCEPT_PROPERTIES"] = myopts["--accept-properties"]
# optimize --help (no need to load config / EMERGE_DEFAULT_OPTS)
if myaction == "help":
emerge_help()
return os.EX_OK
elif myaction == "moo":
print(COWSAY_MOO % platform.system())
return os.EX_OK
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
if myaction == "sync":
portage._sync_disabled_warnings = True
settings, trees, mtimedb = load_emerge_config()
rval = profile_check(trees, myaction)
if rval != os.EX_OK:
return rval
tmpcmdline = []
if "--ignore-default-opts" not in myopts:
tmpcmdline.extend(settings["EMERGE_DEFAULT_OPTS"].split())
tmpcmdline.extend(args)
myaction, myopts, myfiles = parse_opts(tmpcmdline)
return run_action(settings, trees, mtimedb, myaction, myopts, myfiles, build_dict,
gc_locals=locals().clear)
def emerge_main(args=None): """ @param args: command arguments (default: sys.argv[1:]) @type args: list """ if args is None: args = sys.argv[1:] portage._disable_legacy_globals() portage._internal_warnings = True # Disable color until we're sure that it should be enabled (after # EMERGE_DEFAULT_OPTS has been parsed). portage.output.havecolor = 0 # This first pass is just for options that need to be known as early as # possible, such as --config-root. They will be parsed again later, # together with EMERGE_DEFAULT_OPTS (which may vary depending on the # the value of --config-root). myaction, myopts, myfiles = parse_opts(args, silent=True) if "--debug" in myopts: os.environ["PORTAGE_DEBUG"] = "1" if "--config-root" in myopts: os.environ["PORTAGE_CONFIGROOT"] = myopts["--config-root"] if "--root" in myopts: os.environ["ROOT"] = myopts["--root"] if "--accept-properties" in myopts: os.environ["ACCEPT_PROPERTIES"] = myopts["--accept-properties"] # optimize --help (no need to load config / EMERGE_DEFAULT_OPTS) if myaction == "help": emerge_help() return os.EX_OK elif myaction == "moo": print(COWSAY_MOO % platform.system()) return os.EX_OK # Portage needs to ensure a sane umask for the files it creates. os.umask(0o22) if myaction == "sync": portage._sync_disabled_warnings = True settings, trees, mtimedb = load_emerge_config() rval = profile_check(trees, myaction) if rval != os.EX_OK: return rval tmpcmdline = [] if "--ignore-default-opts" not in myopts: tmpcmdline.extend(settings["EMERGE_DEFAULT_OPTS"].split()) tmpcmdline.extend(args) myaction, myopts, myfiles = parse_opts(tmpcmdline) return run_action(settings, trees, mtimedb, myaction, myopts, myfiles, gc_locals=locals().clear)
def __init__(self, settings, logger):
self.settings = settings
self.logger = logger
# Similar to emerge, sync needs a default umask so that created
# files have sane permissions.
os.umask(0o22)
self.module_controller = portage.sync.module_controller
self.module_names = self.module_controller.module_names
self.hooks = {}
for _dir in ["repo.postsync.d", "postsync.d"]:
hooks = get_hooks_from_dir(_dir, prefix=self.settings["PORTAGE_CONFIGROOT"])
self.hooks[_dir] = hooks
def _drop_privs_userfetch(settings): """ Drop privileges for userfetch, and update portage.data.secpass to correspond to the new privilege level. """ spawn_kwargs = dict(_userpriv_spawn_kwargs) try: _ensure_distdir(settings, settings['DISTDIR']) except PortageException: if not os.path.isdir(settings['DISTDIR']): raise os.setgid(int(spawn_kwargs['gid'])) os.setgroups(spawn_kwargs['groups']) os.setuid(int(spawn_kwargs['uid'])) os.umask(spawn_kwargs['umask']) portage.data.secpass = 1
def __init__(self, settings, logger):
self.settings = settings
self.logger = logger
# Similar to emerge, sync needs a default umask so that created
# files have sane permissions.
os.umask(0o22)
self.module_controller = portage.sync.module_controller
self.module_names = self.module_controller.module_names
self.hooks = {}
for _dir in ["repo.postsync.d", "postsync.d"]:
postsync_dir = os.path.join(self.settings["PORTAGE_CONFIGROOT"],
portage.USER_CONFIG_PATH, _dir)
hooks = OrderedDict()
for filepath in util._recursive_file_list(postsync_dir):
name = filepath.split(postsync_dir)[1].lstrip(os.sep)
if os.access(filepath, os.X_OK):
hooks[filepath] = name
else:
writemsg_level(" %s %s hook: '%s' is not executable\n"
% (warn("*"), _dir, _unicode_decode(name),),
level=logging.WARN, noiselevel=2)
self.hooks[_dir] = hooks
def lockfile(mypath, wantnewlockfile=0, unlinkfile=0,
waiting_msg=None, flags=0):
"""
If wantnewlockfile is True then this creates a lockfile in the parent
directory as the file: '.' + basename + '.portage_lockfile'.
"""
if not mypath:
raise InvalidData(_("Empty path given"))
# Since Python 3.4, chown requires int type (no proxies).
portage_gid = int(portage.data.portage_gid)
# Support for file object or integer file descriptor parameters is
# deprecated due to ambiguity in whether or not it's safe to close
# the file descriptor, making it prone to "Bad file descriptor" errors
# or file descriptor leaks.
if isinstance(mypath, basestring) and mypath[-1] == '/':
mypath = mypath[:-1]
lockfilename_path = mypath
if hasattr(mypath, 'fileno'):
warnings.warn("portage.locks.lockfile() support for "
"file object parameters is deprecated. Use a file path instead.",
DeprecationWarning, stacklevel=2)
lockfilename_path = getattr(mypath, 'name', None)
mypath = mypath.fileno()
if isinstance(mypath, int):
warnings.warn("portage.locks.lockfile() support for integer file "
"descriptor parameters is deprecated. Use a file path instead.",
DeprecationWarning, stacklevel=2)
lockfilename = mypath
wantnewlockfile = 0
unlinkfile = 0
elif wantnewlockfile:
base, tail = os.path.split(mypath)
lockfilename = os.path.join(base, "." + tail + ".portage_lockfile")
lockfilename_path = lockfilename
unlinkfile = 1
else:
lockfilename = mypath
if isinstance(mypath, basestring):
if not os.path.exists(os.path.dirname(mypath)):
raise DirectoryNotFound(os.path.dirname(mypath))
preexisting = os.path.exists(lockfilename)
old_mask = os.umask(000)
try:
try:
myfd = os.open(lockfilename, os.O_CREAT|os.O_RDWR, 0o660)
except OSError as e:
func_call = "open('%s')" % lockfilename
if e.errno == OperationNotPermitted.errno:
raise OperationNotPermitted(func_call)
elif e.errno == PermissionDenied.errno:
raise PermissionDenied(func_call)
elif e.errno == ReadOnlyFileSystem.errno:
raise ReadOnlyFileSystem(func_call)
else:
raise
if not preexisting:
try:
if os.stat(lockfilename).st_gid != portage_gid:
os.chown(lockfilename, -1, portage_gid)
except OSError as e:
if e.errno in (errno.ENOENT, errno.ESTALE):
return lockfile(mypath,
wantnewlockfile=wantnewlockfile,
unlinkfile=unlinkfile, waiting_msg=waiting_msg,
flags=flags)
else:
writemsg("%s: chown('%s', -1, %d)\n" % \
(e, lockfilename, portage_gid), noiselevel=-1)
writemsg(_("Cannot chown a lockfile: '%s'\n") % \
lockfilename, noiselevel=-1)
writemsg(_("Group IDs of current user: %s\n") % \
" ".join(str(n) for n in os.getgroups()),
noiselevel=-1)
finally:
os.umask(old_mask)
elif isinstance(mypath, int):
myfd = mypath
else:
raise ValueError(_("Unknown type passed in '%s': '%s'") % \
(type(mypath), mypath))
# try for a non-blocking lock, if it's held, throw a message
# we're waiting on lockfile and use a blocking attempt.
locking_method = portage._eintr_func_wrapper(_default_lock_fn)
try:
if "__PORTAGE_TEST_HARDLINK_LOCKS" in os.environ:
raise IOError(errno.ENOSYS, "Function not implemented")
locking_method(myfd, fcntl.LOCK_EX|fcntl.LOCK_NB)
except IOError as e:
if not hasattr(e, "errno"):
raise
if e.errno in (errno.EACCES, errno.EAGAIN, errno.ENOLCK):
# resource temp unavailable; eg, someone beat us to the lock.
if flags & os.O_NONBLOCK:
os.close(myfd)
raise TryAgain(mypath)
global _quiet
if _quiet:
out = None
else:
out = portage.output.EOutput()
if waiting_msg is None:
if isinstance(mypath, int):
waiting_msg = _("waiting for lock on fd %i") % myfd
else:
waiting_msg = _("waiting for lock on %s") % lockfilename
if out is not None:
out.ebegin(waiting_msg)
# try for the exclusive lock now.
enolock_msg_shown = False
while True:
try:
locking_method(myfd, fcntl.LOCK_EX)
except EnvironmentError as e:
if e.errno == errno.ENOLCK:
# This is known to occur on Solaris NFS (see
# bug #462694). Assume that the error is due
# to temporary exhaustion of record locks,
# and loop until one becomes available.
if not enolock_msg_shown:
enolock_msg_shown = True
if isinstance(mypath, int):
context_desc = _("Error while waiting "
"to lock fd %i") % myfd
else:
context_desc = _("Error while waiting "
"to lock '%s'") % lockfilename
writemsg("\n!!! %s: %s\n" % (context_desc, e),
noiselevel=-1)
time.sleep(_HARDLINK_POLL_LATENCY)
continue
if out is not None:
out.eend(1, str(e))
raise
else:
break
if out is not None:
out.eend(os.EX_OK)
elif e.errno in (errno.ENOSYS,):
# We're not allowed to lock on this FS.
if not isinstance(lockfilename, int):
# If a file object was passed in, it's not safe
# to close the file descriptor because it may
# still be in use.
os.close(myfd)
lockfilename_path = _unicode_decode(lockfilename_path,
encoding=_encodings['fs'], errors='strict')
if not isinstance(lockfilename_path, basestring):
raise
link_success = hardlink_lockfile(lockfilename_path,
waiting_msg=waiting_msg, flags=flags)
if not link_success:
raise
lockfilename = lockfilename_path
locking_method = None
myfd = HARDLINK_FD
else:
raise
if isinstance(lockfilename, basestring) and \
myfd != HARDLINK_FD and _fstat_nlink(myfd) == 0:
# The file was deleted on us... Keep trying to make one...
os.close(myfd)
writemsg(_("lockfile recurse\n"), 1)
lockfilename, myfd, unlinkfile, locking_method = lockfile(
mypath, wantnewlockfile=wantnewlockfile, unlinkfile=unlinkfile,
waiting_msg=waiting_msg, flags=flags)
if myfd != HARDLINK_FD:
# FD_CLOEXEC is enabled by default in Python >=3.4.
if sys.hexversion < 0x3040000:
try:
fcntl.FD_CLOEXEC
except AttributeError:
pass
else:
fcntl.fcntl(myfd, fcntl.F_SETFD,
fcntl.fcntl(myfd, fcntl.F_GETFD) | fcntl.FD_CLOEXEC)
_open_fds.add(myfd)
writemsg(str((lockfilename, myfd, unlinkfile)) + "\n", 1)
return (lockfilename, myfd, unlinkfile, locking_method)
def emerge_main(args=None): """ @param args: command arguments (default: sys.argv[1:]) @type args: list """ if args is None: args = sys.argv[1:] args = portage._decode_argv(args) # Use system locale. locale.setlocale(locale.LC_ALL, '') # Disable color until we're sure that it should be enabled (after # EMERGE_DEFAULT_OPTS has been parsed). portage.output.havecolor = 0 # This first pass is just for options that need to be known as early as # possible, such as --config-root. They will be parsed again later, # together with EMERGE_DEFAULT_OPTS (which may vary depending on the # the value of --config-root). myaction, myopts, myfiles = parse_opts(args, silent=True) if "--debug" in myopts: os.environ["PORTAGE_DEBUG"] = "1" if "--config-root" in myopts: os.environ["PORTAGE_CONFIGROOT"] = myopts["--config-root"] if "--root" in myopts: os.environ["ROOT"] = myopts["--root"] if "--prefix" in myopts: os.environ["EPREFIX"] = myopts["--prefix"] if "--accept-properties" in myopts: os.environ["ACCEPT_PROPERTIES"] = myopts["--accept-properties"] if "--accept-restrict" in myopts: os.environ["ACCEPT_RESTRICT"] = myopts["--accept-restrict"] # optimize --help (no need to load config / EMERGE_DEFAULT_OPTS) if myaction == "help": emerge_help() return os.EX_OK elif myaction == "moo": print(COWSAY_MOO % platform.system()) return os.EX_OK # Portage needs to ensure a sane umask for the files it creates. os.umask(0o22) if myaction == "sync": portage._sync_mode = True emerge_config = load_emerge_config( action=myaction, args=myfiles, opts=myopts) rval = profile_check(emerge_config.trees, emerge_config.action) if rval != os.EX_OK: return rval tmpcmdline = [] if "--ignore-default-opts" not in myopts: tmpcmdline.extend(portage.util.shlex_split( emerge_config.target_config.settings.get( "EMERGE_DEFAULT_OPTS", ""))) tmpcmdline.extend(args) emerge_config.action, emerge_config.opts, emerge_config.args = \ parse_opts(tmpcmdline) try: return run_action(emerge_config) finally: # Call destructors for our portdbapi instances. for x in emerge_config.trees.values(): if "porttree" in x.lazy_items: continue x["porttree"].dbapi.close_caches()
def lockfile(mypath, wantnewlockfile=0, unlinkfile=0, waiting_msg=None, flags=0):
"""
If wantnewlockfile is True then this creates a lockfile in the parent
directory as the file: '.' + basename + '.portage_lockfile'.
"""
if not mypath:
raise InvalidData(_("Empty path given"))
# Support for file object or integer file descriptor parameters is
# deprecated due to ambiguity in whether or not it's safe to close
# the file descriptor, making it prone to "Bad file descriptor" errors
# or file descriptor leaks.
if isinstance(mypath, basestring) and mypath[-1] == "/":
mypath = mypath[:-1]
lockfilename_path = mypath
if hasattr(mypath, "fileno"):
warnings.warn(
"portage.locks.lockfile() support for " "file object parameters is deprecated. Use a file path instead.",
DeprecationWarning,
stacklevel=2,
)
lockfilename_path = getattr(mypath, "name", None)
mypath = mypath.fileno()
if isinstance(mypath, int):
warnings.warn(
"portage.locks.lockfile() support for integer file "
"descriptor parameters is deprecated. Use a file path instead.",
DeprecationWarning,
stacklevel=2,
)
lockfilename = mypath
wantnewlockfile = 0
unlinkfile = 0
elif wantnewlockfile:
base, tail = os.path.split(mypath)
lockfilename = os.path.join(base, "." + tail + ".portage_lockfile")
lockfilename_path = lockfilename
unlinkfile = 1
else:
lockfilename = mypath
if isinstance(mypath, basestring):
if not os.path.exists(os.path.dirname(mypath)):
raise DirectoryNotFound(os.path.dirname(mypath))
preexisting = os.path.exists(lockfilename)
old_mask = os.umask(000)
try:
try:
myfd = os.open(lockfilename, os.O_CREAT | os.O_RDWR, 0o660)
except OSError as e:
func_call = "open('%s')" % lockfilename
if e.errno == OperationNotPermitted.errno:
raise OperationNotPermitted(func_call)
elif e.errno == PermissionDenied.errno:
raise PermissionDenied(func_call)
else:
raise
if not preexisting:
try:
if os.stat(lockfilename).st_gid != portage_gid:
os.chown(lockfilename, -1, portage_gid)
except OSError as e:
if e.errno in (errno.ENOENT, errno.ESTALE):
return lockfile(
mypath,
wantnewlockfile=wantnewlockfile,
unlinkfile=unlinkfile,
waiting_msg=waiting_msg,
flags=flags,
)
else:
writemsg("%s: chown('%s', -1, %d)\n" % (e, lockfilename, portage_gid), noiselevel=-1)
writemsg(_("Cannot chown a lockfile: '%s'\n") % lockfilename, noiselevel=-1)
writemsg(
_("Group IDs of current user: %s\n") % " ".join(str(n) for n in os.getgroups()),
noiselevel=-1,
)
finally:
os.umask(old_mask)
elif isinstance(mypath, int):
myfd = mypath
else:
raise ValueError(_("Unknown type passed in '%s': '%s'") % (type(mypath), mypath))
# try for a non-blocking lock, if it's held, throw a message
# we're waiting on lockfile and use a blocking attempt.
locking_method = _default_lock_fn
try:
if "__PORTAGE_TEST_HARDLINK_LOCKS" in os.environ:
raise IOError(errno.ENOSYS, "Function not implemented")
locking_method(myfd, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError as e:
if not hasattr(e, "errno"):
raise
if e.errno in (errno.EACCES, errno.EAGAIN):
# resource temp unavailable; eg, someone beat us to the lock.
if flags & os.O_NONBLOCK:
os.close(myfd)
raise TryAgain(mypath)
global _quiet
if _quiet:
out = None
else:
out = portage.output.EOutput()
if waiting_msg is None:
if isinstance(mypath, int):
waiting_msg = _("waiting for lock on fd %i") % myfd
else:
waiting_msg = _("waiting for lock on %s\n") % lockfilename
if out is not None:
out.ebegin(waiting_msg)
# try for the exclusive lock now.
try:
locking_method(myfd, fcntl.LOCK_EX)
except EnvironmentError as e:
if out is not None:
out.eend(1, str(e))
raise
if out is not None:
out.eend(os.EX_OK)
elif e.errno in (errno.ENOSYS, errno.ENOLCK):
# We're not allowed to lock on this FS.
if not isinstance(lockfilename, int):
# If a file object was passed in, it's not safe
# to close the file descriptor because it may
# still be in use.
os.close(myfd)
lockfilename_path = _unicode_decode(lockfilename_path, encoding=_encodings["fs"], errors="strict")
if not isinstance(lockfilename_path, basestring):
raise
link_success = hardlink_lockfile(lockfilename_path, waiting_msg=waiting_msg, flags=flags)
if not link_success:
raise
lockfilename = lockfilename_path
locking_method = None
myfd = HARDLINK_FD
else:
raise
if isinstance(lockfilename, basestring) and myfd != HARDLINK_FD and _fstat_nlink(myfd) == 0:
# The file was deleted on us... Keep trying to make one...
os.close(myfd)
writemsg(_("lockfile recurse\n"), 1)
lockfilename, myfd, unlinkfile, locking_method = lockfile(
mypath, wantnewlockfile=wantnewlockfile, unlinkfile=unlinkfile, waiting_msg=waiting_msg, flags=flags
)
if myfd != HARDLINK_FD:
_open_fds.add(myfd)
writemsg(str((lockfilename, myfd, unlinkfile)) + "\n", 1)
return (lockfilename, myfd, unlinkfile, locking_method)
def emaint_main(myargv):
# Similar to emerge, emaint needs a default umask so that created
# files (such as the world file) have sane permissions.
os.umask(0o22)
module_controller = Modules(namepath="portage.emaint.modules")
module_names = module_controller.module_names[:]
module_names.insert(0, "all")
parser = OptionParser(usage=usage(module_controller), version=portage.VERSION)
# add default options
parser_options = []
for opt in DEFAULT_OPTIONS:
parser_options.append(OptionItem(DEFAULT_OPTIONS[opt], parser))
for mod in module_names[1:]:
desc = module_controller.get_func_descriptions(mod)
if desc:
for opt in desc:
parser_options.append(OptionItem(desc[opt], parser))
for opt in parser_options:
parser.add_option(
opt.short,
opt.long,
help=opt.help,
action=opt.action,
type=opt.type,
dest=opt.dest,
callback=opt.callback,
callback_kwargs=opt.callback_kwargs,
)
parser.action = None
(options, args) = parser.parse_args(args=myargv)
# print('options', options, '\nargs', args, '\naction', parser.action)
if len(args) != 1:
parser.error("Incorrect number of arguments")
if args[0] not in module_names:
parser.error("%s target is not a known target" % args[0])
if parser.action:
action = parser.action
else:
action = "-c/--check"
long_action = action.split("/")[1].lstrip("-")
# print("DEBUG: action = ", action, long_action)
if args[0] == "all":
tasks = []
for m in module_names[1:]:
# print("DEBUG: module: %s, functions: " %(m, str(module_controller.get_functions(m))))
if long_action in module_controller.get_functions(m):
tasks.append(module_controller.get_class(m))
elif long_action in module_controller.get_functions(args[0]):
tasks = [module_controller.get_class(args[0])]
else:
print("\nERROR: module '%s' does not have option '%s'\n" % (args[0], action))
print(module_opts(module_controller, args[0]))
sys.exit(1)
func = status = None
for opt in parser_options:
if opt.check_action(action):
status = opt.status
func = opt.func
break
# need to pass the parser options dict to the modules
# so they are available if needed.
task_opts = options.__dict__
taskmaster = TaskHandler(callback=print_results)
taskmaster.run_tasks(tasks, func, status, options=task_opts)
def pre_sync(self, repo):
msg = ">>> Syncing repository '%s' into '%s'..." \
% (repo.name, repo.location)
self.logger(self.xterm_titles, msg)
writemsg_level(msg + "\n")
try:
st = os.stat(repo.location)
except OSError:
st = None
self.usersync_uid = None
spawn_kwargs = {}
# Redirect command stderr to stdout, in order to prevent
# spurious cron job emails (bug 566132).
spawn_kwargs["fd_pipes"] = {
0: sys.__stdin__.fileno(),
1: sys.__stdout__.fileno(),
2: sys.__stdout__.fileno()
}
spawn_kwargs["env"] = self.settings.environ()
if repo.sync_user is not None:
def get_sync_user_data(sync_user):
user = None
group = None
home = None
logname = None
spl = sync_user.split(':', 1)
if spl[0]:
username = spl[0]
try:
try:
pw = pwd.getpwnam(username)
except KeyError:
pw = pwd.getpwuid(int(username))
except (ValueError, KeyError):
writemsg("!!! User '%s' invalid or does not exist\n" %
username,
noiselevel=-1)
return (logname, user, group, home)
user = pw.pw_uid
group = pw.pw_gid
home = pw.pw_dir
logname = pw.pw_name
if len(spl) > 1:
groupname = spl[1]
try:
try:
gp = grp.getgrnam(groupname)
except KeyError:
pw = grp.getgrgid(int(groupname))
except (ValueError, KeyError):
writemsg("!!! Group '%s' invalid or does not exist\n" %
groupname,
noiselevel=-1)
return (logname, user, group, home)
group = gp.gr_gid
return (logname, user, group, home)
# user or user:group
(logname, uid, gid, home) = get_sync_user_data(repo.sync_user)
if uid is not None:
spawn_kwargs["uid"] = uid
self.usersync_uid = uid
if gid is not None:
spawn_kwargs["gid"] = gid
spawn_kwargs["groups"] = [gid]
if home is not None:
spawn_kwargs["env"]["HOME"] = home
if logname is not None:
spawn_kwargs["env"]["LOGNAME"] = logname
if st is None:
perms = {'mode': 0o755}
# respect sync-user if set
if 'umask' in spawn_kwargs:
perms['mode'] &= ~spawn_kwargs['umask']
if 'uid' in spawn_kwargs:
perms['uid'] = spawn_kwargs['uid']
if 'gid' in spawn_kwargs:
perms['gid'] = spawn_kwargs['gid']
portage.util.ensure_dirs(repo.location, **perms)
st = os.stat(repo.location)
if (repo.sync_user is None and 'usersync' in self.settings.features
and portage.data.secpass >= 2
and (st.st_uid != os.getuid() and st.st_mode & 0o700
or st.st_gid != os.getgid() and st.st_mode & 0o070)):
try:
pw = pwd.getpwuid(st.st_uid)
except KeyError:
pass
else:
# Drop privileges when syncing, in order to match
# existing uid/gid settings.
self.usersync_uid = st.st_uid
spawn_kwargs["uid"] = st.st_uid
spawn_kwargs["gid"] = st.st_gid
spawn_kwargs["groups"] = [st.st_gid]
spawn_kwargs["env"]["HOME"] = pw.pw_dir
spawn_kwargs["env"]["LOGNAME"] = pw.pw_name
umask = 0o002
if not st.st_mode & 0o020:
umask = umask | 0o020
spawn_kwargs["umask"] = umask
# override the defaults when sync_umask is set
if repo.sync_umask is not None:
spawn_kwargs["umask"] = int(repo.sync_umask, 8)
self.spawn_kwargs = spawn_kwargs
if self.usersync_uid is not None:
# PORTAGE_TMPDIR is used below, so validate it and
# bail out if necessary.
rval = _check_temp_dir(self.settings)
if rval != os.EX_OK:
return rval
os.umask(0o022)
return os.EX_OK
def pre_sync(self, repo):
msg = ">>> Syncing repository '%s' into '%s'..." % (repo.name, repo.location)
self.logger(self.xterm_titles, msg)
writemsg_level(msg + "\n")
try:
st = os.stat(repo.location)
except OSError:
st = None
self.usersync_uid = None
spawn_kwargs = {}
# Redirect command stderr to stdout, in order to prevent
# spurious cron job emails (bug 566132).
spawn_kwargs["fd_pipes"] = {0: sys.__stdin__.fileno(), 1: sys.__stdout__.fileno(), 2: sys.__stdout__.fileno()}
spawn_kwargs["env"] = self.settings.environ()
if repo.sync_user is not None:
def get_sync_user_data(sync_user):
user = None
group = None
home = None
logname = None
spl = sync_user.split(":", 1)
if spl[0]:
username = spl[0]
try:
try:
pw = pwd.getpwnam(username)
except KeyError:
pw = pwd.getpwuid(int(username))
except (ValueError, KeyError):
writemsg("!!! User '%s' invalid or does not exist\n" % username, noiselevel=-1)
return (logname, user, group, home)
user = pw.pw_uid
group = pw.pw_gid
home = pw.pw_dir
logname = pw.pw_name
if len(spl) > 1:
groupname = spl[1]
try:
try:
gp = grp.getgrnam(groupname)
except KeyError:
pw = grp.getgrgid(int(groupname))
except (ValueError, KeyError):
writemsg("!!! Group '%s' invalid or does not exist\n" % groupname, noiselevel=-1)
return (logname, user, group, home)
group = gp.gr_gid
return (logname, user, group, home)
# user or user:group
(logname, uid, gid, home) = get_sync_user_data(repo.sync_user)
if uid is not None:
spawn_kwargs["uid"] = uid
self.usersync_uid = uid
if gid is not None:
spawn_kwargs["gid"] = gid
spawn_kwargs["groups"] = [gid]
if home is not None:
spawn_kwargs["env"]["HOME"] = home
if logname is not None:
spawn_kwargs["env"]["LOGNAME"] = logname
if st is None:
perms = {"mode": 0o755}
# respect sync-user if set
if "umask" in spawn_kwargs:
perms["mode"] &= ~spawn_kwargs["umask"]
if "uid" in spawn_kwargs:
perms["uid"] = spawn_kwargs["uid"]
if "gid" in spawn_kwargs:
perms["gid"] = spawn_kwargs["gid"]
portage.util.ensure_dirs(repo.location, **perms)
st = os.stat(repo.location)
if (
repo.sync_user is None
and "usersync" in self.settings.features
and portage.data.secpass >= 2
and (st.st_uid != os.getuid() and st.st_mode & 0o700 or st.st_gid != os.getgid() and st.st_mode & 0o070)
):
try:
pw = pwd.getpwuid(st.st_uid)
except KeyError:
pass
else:
# Drop privileges when syncing, in order to match
# existing uid/gid settings.
self.usersync_uid = st.st_uid
spawn_kwargs["uid"] = st.st_uid
spawn_kwargs["gid"] = st.st_gid
spawn_kwargs["groups"] = [st.st_gid]
spawn_kwargs["env"]["HOME"] = pw.pw_dir
spawn_kwargs["env"]["LOGNAME"] = pw.pw_name
umask = 0o002
if not st.st_mode & 0o020:
umask = umask | 0o020
spawn_kwargs["umask"] = umask
# override the defaults when sync_umask is set
if repo.sync_umask is not None:
spawn_kwargs["umask"] = int(repo.sync_umask, 8)
self.spawn_kwargs = spawn_kwargs
if self.usersync_uid is not None:
# PORTAGE_TMPDIR is used below, so validate it and
# bail out if necessary.
rval = _check_temp_dir(self.settings)
if rval != os.EX_OK:
return rval
os.umask(0o022)
return os.EX_OK
def _exec(binary, mycommand, opt_name, fd_pipes,
env, gid, groups, uid, umask, cwd,
pre_exec, close_fds, unshare_net, unshare_ipc, unshare_mount, unshare_pid,
unshare_flags, cgroup):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: List
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param cwd: Current working directory
@type cwd: String
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@param unshare_net: If True, networking will be unshared from the spawned process
@type unshare_net: Boolean
@param unshare_ipc: If True, IPC will be unshared from the spawned process
@type unshare_ipc: Boolean
@param unshare_mount: If True, mount namespace will be unshared and mounts will
be private to the namespace
@type unshare_mount: Boolean
@param unshare_pid: If True, PID ns will be unshared from the spawned process
@type unshare_pid: Boolean
@param unshare_flags: Flags for the unshare(2) function
@type unshare_flags: Integer
@param cgroup: CGroup path to bind the process to
@type cgroup: String
@rtype: None
@return: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
if binary is portage._python_interpreter:
# NOTE: PyPy 1.7 will die due to "libary path not found" if argv[0]
# does not contain the full path of the binary.
opt_name = binary
else:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Avoid a potential UnicodeEncodeError from os.execve().
myargs = [_unicode_encode(x, encoding=_encodings['fs'],
errors='strict') for x in myargs]
# Use default signal handlers in order to avoid problems
# killing subprocesses as reported in bug #353239.
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
# Unregister SIGCHLD handler and wakeup_fd for the parent
# process's event loop (bug 655656).
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
try:
wakeup_fd = signal.set_wakeup_fd(-1)
if wakeup_fd > 0:
os.close(wakeup_fd)
except (ValueError, OSError):
pass
# Quiet killing of subprocesses by SIGPIPE (see bug #309001).
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
# Avoid issues triggered by inheritance of SIGQUIT handler from
# the parent process (see bug #289486).
signal.signal(signal.SIGQUIT, signal.SIG_DFL)
_setup_pipes(fd_pipes, close_fds=close_fds, inheritable=True)
# Add to cgroup
# it's better to do it from the child since we can guarantee
# it is done before we start forking children
if cgroup:
with open(os.path.join(cgroup, 'cgroup.procs'), 'a') as f:
f.write('%d\n' % os.getpid())
# Unshare (while still uid==0)
if unshare_net or unshare_ipc or unshare_mount or unshare_pid:
filename = find_library("c")
if filename is not None:
libc = LoadLibrary(filename)
if libc is not None:
try:
# Since a failed unshare call could corrupt process
# state, first validate that the call can succeed.
# The parent process should call _unshare_validate
# before it forks, so that all child processes can
# reuse _unshare_validate results that have been
# cached by the parent process.
errno_value = _unshare_validate(unshare_flags)
if errno_value == 0 and libc.unshare(unshare_flags) != 0:
errno_value = ctypes.get_errno()
if errno_value != 0:
involved_features = []
if unshare_ipc:
involved_features.append('ipc-sandbox')
if unshare_mount:
involved_features.append('mount-sandbox')
if unshare_net:
involved_features.append('network-sandbox')
if unshare_pid:
involved_features.append('pid-sandbox')
writemsg("Unable to unshare: %s (for FEATURES=\"%s\")\n" % (
errno.errorcode.get(errno_value, '?'), ' '.join(involved_features)),
noiselevel=-1)
else:
if unshare_pid:
main_child_pid = os.fork()
if main_child_pid == 0:
# pid namespace requires us to become init
binary, myargs = portage._python_interpreter, [
portage._python_interpreter,
os.path.join(portage._bin_path,
'pid-ns-init'),
_unicode_encode('' if uid is None else str(uid)),
_unicode_encode('' if gid is None else str(gid)),
_unicode_encode('' if groups is None else ','.join(str(group) for group in groups)),
_unicode_encode('' if umask is None else str(umask)),
_unicode_encode(','.join(str(fd) for fd in fd_pipes)),
binary] + myargs
uid = None
gid = None
groups = None
umask = None
else:
# Execute a supervisor process which will forward
# signals to init and forward exit status to the
# parent process. The supervisor process runs in
# the global pid namespace, so skip /proc remount
# and other setup that's intended only for the
# init process.
binary, myargs = portage._python_interpreter, [
portage._python_interpreter,
os.path.join(portage._bin_path,
'pid-ns-init'), str(main_child_pid)]
os.execve(binary, myargs, env)
if unshare_mount:
# mark the whole filesystem as slave to avoid
# mounts escaping the namespace
s = subprocess.Popen(['mount',
'--make-rslave', '/'])
mount_ret = s.wait()
if mount_ret != 0:
# TODO: should it be fatal maybe?
writemsg("Unable to mark mounts slave: %d\n" % (mount_ret,),
noiselevel=-1)
if unshare_pid:
# we need at least /proc being slave
s = subprocess.Popen(['mount',
'--make-slave', '/proc'])
mount_ret = s.wait()
if mount_ret != 0:
# can't proceed with shared /proc
writemsg("Unable to mark /proc slave: %d\n" % (mount_ret,),
noiselevel=-1)
os._exit(1)
# mount new /proc for our namespace
s = subprocess.Popen(['mount',
'-n', '-t', 'proc', 'proc', '/proc'])
mount_ret = s.wait()
if mount_ret != 0:
writemsg("Unable to mount new /proc: %d\n" % (mount_ret,),
noiselevel=-1)
os._exit(1)
if unshare_net:
# use 'localhost' to avoid hostname resolution problems
try:
socket.sethostname('localhost')
except Exception as e:
writemsg("Unable to set hostname: %s (for FEATURES=\"network-sandbox\")\n" % (
e,),
noiselevel=-1)
_configure_loopback_interface()
except AttributeError:
# unshare() not supported by libc
pass
# Set requested process permissions.
if gid:
# Cast proxies to int, in case it matters.
os.setgid(int(gid))
if groups:
os.setgroups(groups)
if uid:
# Cast proxies to int, in case it matters.
os.setuid(int(uid))
if umask:
os.umask(umask)
if cwd is not None:
os.chdir(cwd)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def pre_sync(self, repo):
self.settings, self.trees, self.mtimedb = self.emerge_config
self.xterm_titles = "notitles" not in self.settings.features
msg = ">>> Synchronization of repository '%s' located in '%s'..." \
% (repo.name, repo.location)
self.logger(self.xterm_titles, msg)
writemsg_level(msg + "\n")
try:
st = os.stat(repo.location)
except OSError:
st = None
self.usersync_uid = None
spawn_kwargs = {}
spawn_kwargs["env"] = self.settings.environ()
if repo.sync_user is not None:
def get_sync_user_data(sync_user):
user = None
group = None
home = None
spl = sync_user.split(':', 1)
if spl[0]:
username = spl[0]
try:
try:
pw = pwd.getpwnam(username)
except KeyError:
pw = pwd.getpwuid(int(username))
except (ValueError, KeyError):
writemsg("!!! User '%s' invalid or does not exist\n"
% username, noiselevel=-1)
return (user, group, home)
user = pw.pw_uid
group = pw.pw_gid
home = pw.pw_dir
if len(spl) > 1:
groupname = spl[1]
try:
try:
gp = grp.getgrnam(groupname)
except KeyError:
pw = grp.getgrgid(int(groupname))
except (ValueError, KeyError):
writemsg("!!! Group '%s' invalid or does not exist\n"
% groupname, noiselevel=-1)
return (user, group, home)
group = gp.gr_gid
return (user, group, home)
# user or user:group
(uid, gid, home) = get_sync_user_data(repo.sync_user)
if uid is not None:
spawn_kwargs["uid"] = uid
self.usersync_uid = uid
if gid is not None:
spawn_kwargs["gid"] = gid
spawn_kwargs["groups"] = [gid]
if home is not None:
spawn_kwargs["env"]["HOME"] = home
if st is None:
perms = {'mode': 0o755}
# respect sync-user if set
if 'umask' in spawn_kwargs:
perms['mode'] &= ~spawn_kwargs['umask']
if 'uid' in spawn_kwargs:
perms['uid'] = spawn_kwargs['uid']
if 'gid' in spawn_kwargs:
perms['gid'] = spawn_kwargs['gid']
writemsg_level(">>> '%s' not found, creating it."
% _unicode_decode(repo.location))
portage.util.ensure_dirs(repo.location, **perms)
st = os.stat(repo.location)
if (repo.sync_user is None and
'usersync' in self.settings.features and
portage.data.secpass >= 2 and
(st.st_uid != os.getuid() and st.st_mode & 0o700 or
st.st_gid != os.getgid() and st.st_mode & 0o070)):
try:
homedir = pwd.getpwuid(st.st_uid).pw_dir
except KeyError:
pass
else:
# Drop privileges when syncing, in order to match
# existing uid/gid settings.
self.usersync_uid = st.st_uid
spawn_kwargs["uid"] = st.st_uid
spawn_kwargs["gid"] = st.st_gid
spawn_kwargs["groups"] = [st.st_gid]
spawn_kwargs["env"]["HOME"] = homedir
umask = 0o002
if not st.st_mode & 0o020:
umask = umask | 0o020
spawn_kwargs["umask"] = umask
# override the defaults when sync_umask is set
if repo.sync_umask is not None:
spawn_kwargs["umask"] = int(repo.sync_umask, 8)
self.spawn_kwargs = spawn_kwargs
if self.usersync_uid is not None:
# PORTAGE_TMPDIR is used below, so validate it and
# bail out if necessary.
rval = _check_temp_dir(self.settings)
if rval != os.EX_OK:
return rval
os.umask(0o022)
return os.EX_OK
def lockfile(mypath,
wantnewlockfile=0,
unlinkfile=0,
waiting_msg=None,
flags=0):
"""
If wantnewlockfile is True then this creates a lockfile in the parent
directory as the file: '.' + basename + '.portage_lockfile'.
"""
import fcntl
if not mypath:
raise InvalidData(_("Empty path given"))
if isinstance(mypath, basestring) and mypath[-1] == '/':
mypath = mypath[:-1]
if hasattr(mypath, 'fileno'):
mypath = mypath.fileno()
if isinstance(mypath, int):
lockfilename = mypath
wantnewlockfile = 0
unlinkfile = 0
elif wantnewlockfile:
base, tail = os.path.split(mypath)
lockfilename = os.path.join(base, "." + tail + ".portage_lockfile")
del base, tail
unlinkfile = 1
else:
lockfilename = mypath
if isinstance(mypath, basestring):
if not os.path.exists(os.path.dirname(mypath)):
raise DirectoryNotFound(os.path.dirname(mypath))
preexisting = os.path.exists(lockfilename)
old_mask = os.umask(000)
try:
try:
myfd = os.open(lockfilename, os.O_CREAT | os.O_RDWR, 0o660)
except OSError as e:
func_call = "open('%s')" % lockfilename
if e.errno == OperationNotPermitted.errno:
raise OperationNotPermitted(func_call)
elif e.errno == PermissionDenied.errno:
raise PermissionDenied(func_call)
else:
raise
if not preexisting:
try:
if os.stat(lockfilename).st_gid != portage_gid:
os.chown(lockfilename, -1, portage_gid)
except OSError as e:
if e.errno in (errno.ENOENT, errno.ESTALE):
return lockfile(mypath,
wantnewlockfile=wantnewlockfile,
unlinkfile=unlinkfile,
waiting_msg=waiting_msg,
flags=flags)
else:
writemsg("%s: chown('%s', -1, %d)\n" % \
(e, lockfilename, portage_gid), noiselevel=-1)
writemsg(_("Cannot chown a lockfile: '%s'\n") % \
lockfilename, noiselevel=-1)
writemsg(_("Group IDs of current user: %s\n") % \
" ".join(str(n) for n in os.getgroups()),
noiselevel=-1)
finally:
os.umask(old_mask)
elif isinstance(mypath, int):
myfd = mypath
else:
raise ValueError(_("Unknown type passed in '%s': '%s'") % \
(type(mypath), mypath))
# try for a non-blocking lock, if it's held, throw a message
# we're waiting on lockfile and use a blocking attempt.
locking_method = fcntl.lockf
try:
fcntl.lockf(myfd, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError as e:
if "errno" not in dir(e):
raise
if e.errno in (errno.EACCES, errno.EAGAIN):
# resource temp unavailable; eg, someone beat us to the lock.
if flags & os.O_NONBLOCK:
raise TryAgain(mypath)
global _quiet
out = EOutput()
out.quiet = _quiet
if waiting_msg is None:
if isinstance(mypath, int):
waiting_msg = _("waiting for lock on fd %i") % myfd
else:
waiting_msg = _("waiting for lock on %s\n") % lockfilename
out.ebegin(waiting_msg)
# try for the exclusive lock now.
try:
fcntl.lockf(myfd, fcntl.LOCK_EX)
except EnvironmentError as e:
out.eend(1, str(e))
raise
out.eend(os.EX_OK)
elif e.errno == errno.ENOLCK:
# We're not allowed to lock on this FS.
os.close(myfd)
link_success = False
if lockfilename == str(lockfilename):
if wantnewlockfile:
try:
if os.stat(lockfilename)[stat.ST_NLINK] == 1:
os.unlink(lockfilename)
except OSError:
pass
link_success = hardlink_lockfile(lockfilename)
if not link_success:
raise
locking_method = None
myfd = HARDLINK_FD
else:
raise
if isinstance(lockfilename, basestring) and \
myfd != HARDLINK_FD and _fstat_nlink(myfd) == 0:
# The file was deleted on us... Keep trying to make one...
os.close(myfd)
writemsg(_("lockfile recurse\n"), 1)
lockfilename, myfd, unlinkfile, locking_method = lockfile(
mypath,
wantnewlockfile=wantnewlockfile,
unlinkfile=unlinkfile,
waiting_msg=waiting_msg,
flags=flags)
writemsg(str((lockfilename, myfd, unlinkfile)) + "\n", 1)
return (lockfilename, myfd, unlinkfile, locking_method)
def _get_legacy_global(name):
constructed = portage._legacy_globals_constructed
if name in constructed:
return getattr(portage, name)
if name == 'portdb':
portage.portdb = portage.db[portage.root]["porttree"].dbapi
constructed.add(name)
return getattr(portage, name)
elif name in ('mtimedb', 'mtimedbfile'):
portage.mtimedbfile = os.path.join(portage.settings['EROOT'],
CACHE_PATH, "mtimedb")
constructed.add('mtimedbfile')
portage.mtimedb = portage.MtimeDB(portage.mtimedbfile)
constructed.add('mtimedb')
return getattr(portage, name)
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
kwargs = {}
for k, envvar in (("config_root", "PORTAGE_CONFIGROOT"),
("target_root", "ROOT"), ("eprefix", "EPREFIX")):
kwargs[k] = os.environ.get(envvar)
portage._initializing_globals = True
portage.db = portage.create_trees(**kwargs)
constructed.add('db')
del portage._initializing_globals
settings = portage.db[portage.db._target_eroot]["vartree"].settings
portage.settings = settings
constructed.add('settings')
# Since portage.db now uses EROOT for keys instead of ROOT, we make
# portage.root refer to EROOT such that it continues to work as a key.
portage.root = portage.db._target_eroot
constructed.add('root')
# COMPATIBILITY
# These attributes should not be used within
# Portage under any circumstances.
portage.archlist = settings.archlist()
constructed.add('archlist')
portage.features = settings.features
constructed.add('features')
portage.groups = settings.get("ACCEPT_KEYWORDS", "").split()
constructed.add('groups')
portage.pkglines = settings.packages
constructed.add('pkglines')
portage.selinux_enabled = settings.selinux_enabled()
constructed.add('selinux_enabled')
portage.thirdpartymirrors = settings.thirdpartymirrors()
constructed.add('thirdpartymirrors')
profiledir = os.path.join(settings["PORTAGE_CONFIGROOT"], PROFILE_PATH)
if not os.path.isdir(profiledir):
profiledir = None
portage.profiledir = profiledir
constructed.add('profiledir')
return getattr(portage, name)
def emaint_main(myargv):
# Similar to emerge, emaint needs a default umask so that created
# files (such as the world file) have sane permissions.
os.umask(0o22)
module_controller = Modules(namepath="portage.emaint.modules")
module_names = module_controller.module_names[:]
module_names.insert(0, "all")
parser = OptionParser(usage=usage(module_controller), version=portage.VERSION)
# add default options
parser_options = []
for opt in DEFAULT_OPTIONS:
parser_options.append(OptionItem(DEFAULT_OPTIONS[opt], parser))
for mod in module_names[1:]:
desc = module_controller.get_func_descriptions(mod)
if desc:
for opt in desc:
parser_options.append(OptionItem(desc[opt], parser))
for opt in parser_options:
parser.add_option(opt.short, opt.long, help=opt.help, action=opt.action,
type=opt.type, dest=opt.dest,
callback=opt.callback, callback_kwargs=opt.callback_kwargs)
parser.action = None
(options, args) = parser.parse_args(args=myargv)
#print('options', options, '\nargs', args, '\naction', parser.action)
if len(args) != 1:
parser.error("Incorrect number of arguments")
if args[0] not in module_names:
parser.error("%s target is not a known target" % args[0])
if parser.action:
action = parser.action
else:
action = "-c/--check"
long_action = action.split('/')[1].lstrip('-')
#print("DEBUG: action = ", action, long_action)
if args[0] == "all":
tasks = []
for m in module_names[1:]:
#print("DEBUG: module: %s, functions: " %(m, str(module_controller.get_functions(m))))
if long_action in module_controller.get_functions(m):
tasks.append(module_controller.get_class(m))
elif long_action in module_controller.get_functions(args[0]):
tasks = [module_controller.get_class(args[0] )]
else:
print("\nERROR: module '%s' does not have option '%s'\n" %(args[0], action))
print(module_opts(module_controller, args[0]))
sys.exit(1)
func = status = None
for opt in parser_options:
if opt.check_action(action):
status = opt.status
func = opt.func
break
# need to pass the parser options dict to the modules
# so they are available if needed.
task_opts = options.__dict__
taskmaster = TaskHandler(callback=print_results)
taskmaster.run_tasks(tasks, func, status, options=task_opts)
def _exec(binary, mycommand, opt_name, fd_pipes, env, gid, groups, uid, umask,
pre_exec):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: Integer
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@rtype: None
@returns: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Set up the command's pipes.
my_fds = {}
# To protect from cases where direct assignment could
# clobber needed fds ({1:2, 2:1}) we first dupe the fds
# into unused fds.
for fd in fd_pipes:
my_fds[fd] = os.dup(fd_pipes[fd])
# Then assign them to what they should be.
for fd in my_fds:
os.dup2(my_fds[fd], fd)
# Then close _all_ fds that haven't been explictly
# requested to be kept open.
for fd in get_open_fds():
if fd not in my_fds:
try:
os.close(fd)
except OSError:
pass
# Set requested process permissions.
if gid:
os.setgid(gid)
if groups:
os.setgroups(groups)
if uid:
os.setuid(uid)
if umask:
os.umask(umask)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def _get_legacy_global(name):
constructed = portage._legacy_globals_constructed
if name in constructed:
return getattr(portage, name)
if name == 'portdb':
portage.portdb = portage.db[portage.root]["porttree"].dbapi
constructed.add(name)
return getattr(portage, name)
elif name in ('mtimedb', 'mtimedbfile'):
portage.mtimedbfile = os.path.join(portage.root,
CACHE_PATH, "mtimedb")
constructed.add('mtimedbfile')
portage.mtimedb = portage.MtimeDB(portage.mtimedbfile)
constructed.add('mtimedb')
return getattr(portage, name)
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
kwargs = {}
for k, envvar in (("config_root", "PORTAGE_CONFIGROOT"), ("target_root", "ROOT")):
kwargs[k] = os.environ.get(envvar, "/")
portage._initializing_globals = True
portage.db = portage.create_trees(**kwargs)
constructed.add('db')
del portage._initializing_globals
settings = portage.db["/"]["vartree"].settings
for root in portage.db:
if root != "/":
settings = portage.db[root]["vartree"].settings
break
portage.output._init(config_root=settings['PORTAGE_CONFIGROOT'])
portage.settings = settings
constructed.add('settings')
portage.root = root
constructed.add('root')
# COMPATIBILITY
# These attributes should not be used within
# Portage under any circumstances.
portage.archlist = settings.archlist()
constructed.add('archlist')
portage.features = settings.features
constructed.add('features')
portage.groups = settings["ACCEPT_KEYWORDS"].split()
constructed.add('groups')
portage.pkglines = settings.packages
constructed.add('pkglines')
portage.selinux_enabled = settings.selinux_enabled()
constructed.add('selinux_enabled')
portage.thirdpartymirrors = settings.thirdpartymirrors()
constructed.add('thirdpartymirrors')
portage.usedefaults = settings.use_defs
constructed.add('usedefaults')
profiledir = os.path.join(settings["PORTAGE_CONFIGROOT"], PROFILE_PATH)
if not os.path.isdir(profiledir):
profiledir = None
portage.profiledir = profiledir
constructed.add('profiledir')
return getattr(portage, name)
def _exec(binary, mycommand, opt_name, fd_pipes,
env, gid, groups, uid, umask, cwd,
pre_exec, close_fds, unshare_net, unshare_ipc, unshare_mount, unshare_pid,
unshare_flags, cgroup):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: List
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param cwd: Current working directory
@type cwd: String
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@param unshare_net: If True, networking will be unshared from the spawned process
@type unshare_net: Boolean
@param unshare_ipc: If True, IPC will be unshared from the spawned process
@type unshare_ipc: Boolean
@param unshare_mount: If True, mount namespace will be unshared and mounts will
be private to the namespace
@type unshare_mount: Boolean
@param unshare_pid: If True, PID ns will be unshared from the spawned process
@type unshare_pid: Boolean
@param unshare_flags: Flags for the unshare(2) function
@type unshare_flags: Integer
@param cgroup: CGroup path to bind the process to
@type cgroup: String
@rtype: None
@return: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
if binary is portage._python_interpreter:
# NOTE: PyPy 1.7 will die due to "libary path not found" if argv[0]
# does not contain the full path of the binary.
opt_name = binary
else:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Avoid a potential UnicodeEncodeError from os.execve().
myargs = [_unicode_encode(x, encoding=_encodings['fs'],
errors='strict') for x in myargs]
# Use default signal handlers in order to avoid problems
# killing subprocesses as reported in bug #353239.
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
# Unregister SIGCHLD handler and wakeup_fd for the parent
# process's event loop (bug 655656).
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
try:
wakeup_fd = signal.set_wakeup_fd(-1)
if wakeup_fd > 0:
os.close(wakeup_fd)
except (ValueError, OSError):
pass
# Quiet killing of subprocesses by SIGPIPE (see bug #309001).
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
# Avoid issues triggered by inheritance of SIGQUIT handler from
# the parent process (see bug #289486).
signal.signal(signal.SIGQUIT, signal.SIG_DFL)
_setup_pipes(fd_pipes, close_fds=close_fds, inheritable=True)
# Add to cgroup
# it's better to do it from the child since we can guarantee
# it is done before we start forking children
if cgroup:
with open(os.path.join(cgroup, 'cgroup.procs'), 'a') as f:
f.write('%d\n' % os.getpid())
# Unshare (while still uid==0)
if unshare_net or unshare_ipc or unshare_mount or unshare_pid:
filename = find_library("c")
if filename is not None:
libc = LoadLibrary(filename)
if libc is not None:
try:
# Since a failed unshare call could corrupt process
# state, first validate that the call can succeed.
# The parent process should call _unshare_validate
# before it forks, so that all child processes can
# reuse _unshare_validate results that have been
# cached by the parent process.
errno_value = _unshare_validate(unshare_flags)
if errno_value == 0 and libc.unshare(unshare_flags) != 0:
errno_value = ctypes.get_errno()
if errno_value != 0:
writemsg("Unable to unshare: %s\n" % (
errno.errorcode.get(errno_value, '?')),
noiselevel=-1)
else:
if unshare_pid:
main_child_pid = os.fork()
if main_child_pid == 0:
# pid namespace requires us to become init
binary, myargs = portage._python_interpreter, [
portage._python_interpreter,
os.path.join(portage._bin_path,
'pid-ns-init'),
_unicode_encode('' if uid is None else str(uid)),
_unicode_encode('' if gid is None else str(gid)),
_unicode_encode('' if groups is None else ','.join(str(group) for group in groups)),
_unicode_encode('' if umask is None else str(umask)),
_unicode_encode(','.join(str(fd) for fd in fd_pipes)),
binary] + myargs
uid = None
gid = None
groups = None
umask = None
else:
# Execute a supervisor process which will forward
# signals to init and forward exit status to the
# parent process. The supervisor process runs in
# the global pid namespace, so skip /proc remount
# and other setup that's intended only for the
# init process.
binary, myargs = portage._python_interpreter, [
portage._python_interpreter,
os.path.join(portage._bin_path,
'pid-ns-init'), str(main_child_pid)]
os.execve(binary, myargs, env)
if unshare_mount:
# mark the whole filesystem as slave to avoid
# mounts escaping the namespace
s = subprocess.Popen(['mount',
'--make-rslave', '/'])
mount_ret = s.wait()
if mount_ret != 0:
# TODO: should it be fatal maybe?
writemsg("Unable to mark mounts slave: %d\n" % (mount_ret,),
noiselevel=-1)
if unshare_pid:
# we need at least /proc being slave
s = subprocess.Popen(['mount',
'--make-slave', '/proc'])
mount_ret = s.wait()
if mount_ret != 0:
# can't proceed with shared /proc
writemsg("Unable to mark /proc slave: %d\n" % (mount_ret,),
noiselevel=-1)
os._exit(1)
# mount new /proc for our namespace
s = subprocess.Popen(['mount',
'-n', '-t', 'proc', 'proc', '/proc'])
mount_ret = s.wait()
if mount_ret != 0:
writemsg("Unable to mount new /proc: %d\n" % (mount_ret,),
noiselevel=-1)
os._exit(1)
if unshare_net:
# 'up' the loopback
IFF_UP = 0x1
ifreq = struct.pack('16sh', b'lo', IFF_UP)
SIOCSIFFLAGS = 0x8914
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, 0)
try:
fcntl.ioctl(sock, SIOCSIFFLAGS, ifreq)
except IOError as e:
writemsg("Unable to enable loopback interface: %s\n" % (
errno.errorcode.get(e.errno, '?')),
noiselevel=-1)
sock.close()
except AttributeError:
# unshare() not supported by libc
pass
# Set requested process permissions.
if gid:
# Cast proxies to int, in case it matters.
os.setgid(int(gid))
if groups:
os.setgroups(groups)
if uid:
# Cast proxies to int, in case it matters.
os.setuid(int(uid))
if umask:
os.umask(umask)
if cwd is not None:
os.chdir(cwd)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def _exec(binary, mycommand, opt_name, fd_pipes, env, gid, groups, uid, umask,
pre_exec):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: Integer
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@rtype: None
@returns: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Set up the command's pipes.
my_fds = {}
# To protect from cases where direct assignment could
# clobber needed fds ({1:2, 2:1}) we first dupe the fds
# into unused fds.
for fd in fd_pipes:
my_fds[fd] = os.dup(fd_pipes[fd])
# Then assign them to what they should be.
for fd in my_fds:
os.dup2(my_fds[fd], fd)
# Then close _all_ fds that haven't been explictly
# requested to be kept open.
for fd in get_open_fds():
if fd not in my_fds:
try:
os.close(fd)
except OSError:
pass
# Set requested process permissions.
if gid:
os.setgid(gid)
if groups:
os.setgroups(groups)
if uid:
os.setuid(uid)
if umask:
os.umask(umask)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def _exec(binary, mycommand, opt_name, fd_pipes, env, gid, groups, uid, umask,
pre_exec, close_fds, unshare_net, unshare_ipc, cgroup):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: Integer
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@param unshare_net: If True, networking will be unshared from the spawned process
@type unshare_net: Boolean
@param unshare_ipc: If True, IPC will be unshared from the spawned process
@type unshare_ipc: Boolean
@param cgroup: CGroup path to bind the process to
@type cgroup: String
@rtype: None
@return: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
if binary is portage._python_interpreter:
# NOTE: PyPy 1.7 will die due to "libary path not found" if argv[0]
# does not contain the full path of the binary.
opt_name = binary
else:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Avoid a potential UnicodeEncodeError from os.execve().
myargs = [
_unicode_encode(x, encoding=_encodings['fs'], errors='strict')
for x in myargs
]
# Use default signal handlers in order to avoid problems
# killing subprocesses as reported in bug #353239.
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
# Quiet killing of subprocesses by SIGPIPE (see bug #309001).
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
# Avoid issues triggered by inheritance of SIGQUIT handler from
# the parent process (see bug #289486).
signal.signal(signal.SIGQUIT, signal.SIG_DFL)
_setup_pipes(fd_pipes, close_fds=close_fds, inheritable=True)
# Add to cgroup
# it's better to do it from the child since we can guarantee
# it is done before we start forking children
if cgroup:
with open(os.path.join(cgroup, 'cgroup.procs'), 'a') as f:
f.write('%d\n' % os.getpid())
# Unshare (while still uid==0)
if unshare_net or unshare_ipc:
filename = find_library("c")
if filename is not None:
libc = LoadLibrary(filename)
if libc is not None:
CLONE_NEWIPC = 0x08000000
CLONE_NEWNET = 0x40000000
flags = 0
if unshare_net:
flags |= CLONE_NEWNET
if unshare_ipc:
flags |= CLONE_NEWIPC
try:
if libc.unshare(flags) != 0:
writemsg(
"Unable to unshare: %s\n" %
(errno.errorcode.get(ctypes.get_errno(), '?')),
noiselevel=-1)
else:
if unshare_net:
# 'up' the loopback
IFF_UP = 0x1
ifreq = struct.pack('16sh', b'lo', IFF_UP)
SIOCSIFFLAGS = 0x8914
sock = socket.socket(socket.AF_INET,
socket.SOCK_DGRAM, 0)
try:
fcntl.ioctl(sock, SIOCSIFFLAGS, ifreq)
except IOError as e:
writemsg(
"Unable to enable loopback interface: %s\n"
% (errno.errorcode.get(e.errno, '?')),
noiselevel=-1)
sock.close()
except AttributeError:
# unshare() not supported by libc
pass
# Set requested process permissions.
if gid:
# Cast proxies to int, in case it matters.
os.setgid(int(gid))
if groups:
os.setgroups(groups)
if uid:
# Cast proxies to int, in case it matters.
os.setuid(int(uid))
if umask:
os.umask(umask)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def _get_legacy_global(name):
constructed = portage._legacy_globals_constructed
if name in constructed:
return getattr(portage, name)
if name == 'portdb':
portage.portdb = portage.db[portage.root]["porttree"].dbapi
constructed.add(name)
return getattr(portage, name)
if name in ('mtimedb', 'mtimedbfile'):
portage.mtimedbfile = os.path.join(portage.settings['EROOT'],
CACHE_PATH, "mtimedb")
constructed.add('mtimedbfile')
portage.mtimedb = portage.MtimeDB(portage.mtimedbfile)
constructed.add('mtimedb')
return getattr(portage, name)
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
kwargs = {}
for k, envvar in (("config_root", "PORTAGE_CONFIGROOT"),
("target_root", "ROOT"), ("sysroot", "SYSROOT"),
("eprefix", "EPREFIX")):
kwargs[k] = os.environ.get(envvar)
portage._initializing_globals = True
portage.db = portage.create_trees(**kwargs)
constructed.add('db')
del portage._initializing_globals
settings = portage.db[portage.db._target_eroot]["vartree"].settings
portage.settings = settings
constructed.add('settings')
# Since portage.db now uses EROOT for keys instead of ROOT, we make
# portage.root refer to EROOT such that it continues to work as a key.
portage.root = portage.db._target_eroot
constructed.add('root')
# COMPATIBILITY
# These attributes should not be used within
# Portage under any circumstances.
portage.archlist = settings.archlist()
constructed.add('archlist')
portage.features = settings.features
constructed.add('features')
portage.groups = settings.get("ACCEPT_KEYWORDS", "").split()
constructed.add('groups')
portage.pkglines = settings.packages
constructed.add('pkglines')
portage.selinux_enabled = settings.selinux_enabled()
constructed.add('selinux_enabled')
portage.thirdpartymirrors = settings.thirdpartymirrors()
constructed.add('thirdpartymirrors')
profiledir = os.path.join(settings["PORTAGE_CONFIGROOT"], PROFILE_PATH)
if not os.path.isdir(profiledir):
profiledir = None
portage.profiledir = profiledir
constructed.add('profiledir')
return getattr(portage, name)
def emerge_main(args=None):
"""
@param args: command arguments (default: sys.argv[1:])
@type args: list
"""
if args is None:
args = sys.argv[1:]
args = portage._decode_argv(args)
# Use system locale.
try:
locale.setlocale(locale.LC_ALL, "")
except locale.Error as e:
writemsg_level("setlocale: %s\n" % e, level=logging.WARN)
# Disable color until we're sure that it should be enabled (after
# EMERGE_DEFAULT_OPTS has been parsed).
portage.output.havecolor = 0
# This first pass is just for options that need to be known as early as
# possible, such as --config-root. They will be parsed again later,
# together with EMERGE_DEFAULT_OPTS (which may vary depending on the
# the value of --config-root).
myaction, myopts, myfiles = parse_opts(args, silent=True)
if "--debug" in myopts:
os.environ["PORTAGE_DEBUG"] = "1"
if "--config-root" in myopts:
os.environ["PORTAGE_CONFIGROOT"] = myopts["--config-root"]
if "--sysroot" in myopts:
os.environ["SYSROOT"] = myopts["--sysroot"]
if "--root" in myopts:
os.environ["ROOT"] = myopts["--root"]
if "--prefix" in myopts:
os.environ["EPREFIX"] = myopts["--prefix"]
if "--accept-properties" in myopts:
os.environ["ACCEPT_PROPERTIES"] = myopts["--accept-properties"]
if "--accept-restrict" in myopts:
os.environ["ACCEPT_RESTRICT"] = myopts["--accept-restrict"]
# optimize --help (no need to load config / EMERGE_DEFAULT_OPTS)
if myaction == "help":
emerge_help()
return os.EX_OK
if myaction == "moo":
print(COWSAY_MOO % platform.system())
return os.EX_OK
if myaction == "sync":
# need to set this to True now in order for the repository config
# loading to allow new repos with non-existent directories
portage._sync_mode = True
# Verify that /dev/null exists and is a device file as a cheap early
# filter for obviously broken /dev/s.
try:
if os.stat(os.devnull).st_rdev == 0:
writemsg_level(
"Failed to validate a sane '/dev'.\n"
"'/dev/null' is not a device file.\n",
level=logging.ERROR,
noiselevel=-1)
return 1
except OSError:
writemsg_level(
"Failed to validate a sane '/dev'.\n"
"'/dev/null' does not exist.\n",
level=logging.ERROR,
noiselevel=-1)
return 1
# Verify that BASH process substitution works as another cheap early
# filter. Process substitution uses '/dev/fd'.
with open(os.devnull, 'r+b') as dev_null:
fd_pipes = {
0: dev_null.fileno(),
1: dev_null.fileno(),
2: dev_null.fileno(),
}
if portage.process.spawn_bash("[[ $(< <(echo foo) ) == foo ]]",
fd_pipes=fd_pipes) != 0:
writemsg_level(
"Failed to validate a sane '/dev'.\n"
"bash process substitution doesn't work; this may be an "
"indication of a broken '/dev/fd'.\n",
level=logging.ERROR,
noiselevel=-1)
return 1
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
emerge_config = load_emerge_config(action=myaction,
args=myfiles,
opts=myopts)
# Make locale variables from configuration files (make.defaults, make.conf) affect locale of emerge process.
for locale_var_name in ("LANGUAGE", "LC_ALL", "LC_ADDRESS", "LC_COLLATE",
"LC_CTYPE", "LC_IDENTIFICATION", "LC_MEASUREMENT",
"LC_MESSAGES", "LC_MONETARY", "LC_NAME",
"LC_NUMERIC", "LC_PAPER", "LC_TELEPHONE",
"LC_TIME", "LANG"):
locale_var_value = emerge_config.running_config.settings.get(
locale_var_name)
if locale_var_value is not None:
os.environ.setdefault(locale_var_name, locale_var_value)
try:
locale.setlocale(locale.LC_ALL, "")
except locale.Error as e:
writemsg_level("setlocale: %s\n" % e, level=logging.WARN)
tmpcmdline = []
if "--ignore-default-opts" not in myopts:
tmpcmdline.extend(
portage.util.shlex_split(
emerge_config.target_config.settings.get(
"EMERGE_DEFAULT_OPTS", "")))
tmpcmdline.extend(args)
emerge_config.action, emerge_config.opts, emerge_config.args = \
parse_opts(tmpcmdline)
try:
return run_action(emerge_config)
finally:
# Call destructors for our portdbapi instances.
for x in emerge_config.trees.values():
if "porttree" in x.lazy_items:
continue
x["porttree"].dbapi.close_caches()
def emaint_main(myargv):
# Similar to emerge, emaint needs a default umask so that created
# files (such as the world file) have sane permissions.
os.umask(0o22)
module_path = os.path.join((os.path.dirname(os.path.realpath(__file__))),
"modules")
module_controller = Modules(path=module_path,
namepath="portage.emaint.modules")
module_names = module_controller.module_names[:]
module_names.insert(0, "all")
parser = argparse.ArgumentParser(usage=usage(module_controller))
# add default options
parser_options = []
for opt in DEFAULT_OPTIONS:
parser_options.append(OptionItem(DEFAULT_OPTIONS[opt]))
for mod in module_names[1:]:
desc = module_controller.get_func_descriptions(mod)
if desc:
for opt in desc:
parser_options.append(OptionItem(desc[opt]))
desc = module_controller.get_opt_descriptions(mod)
if desc:
for opt in desc:
parser_options.append(OptionItem(desc[opt]))
for opt in parser_options:
parser.add_argument(*opt.pargs, **opt.kwargs)
options, args = parser.parse_known_args(args=myargv)
if options.version:
print(portage.VERSION)
return os.EX_OK
if len(args) != 1:
parser.error("Incorrect number of arguments")
if args[0] not in module_names:
parser.error("%s target is not a known target" % args[0])
check_opt = None
func = status = long_action = None
for opt in parser_options:
if opt.long == '--check':
# Default action
check_opt = opt
if opt.status and getattr(options, opt.target, False):
if long_action is not None:
parser.error("--%s and %s are exclusive options" %
(long_action, opt.long))
status = opt.status
func = opt.func
long_action = opt.long.lstrip('-')
if long_action is None:
#print("DEBUG: long_action is None: setting to 'check'")
long_action = 'check'
func = check_opt.func
status = check_opt.status
if args[0] == "all":
tasks = []
for m in module_names[1:]:
#print("DEBUG: module: %s, functions: " % (m, str(module_controller.get_functions(m))))
if long_action in module_controller.get_functions(m):
tasks.append(module_controller.get_class(m))
elif long_action in module_controller.get_functions(args[0]):
tasks = [module_controller.get_class(args[0])]
else:
portage.util.writemsg(
"\nERROR: module '%s' does not have option '--%s'\n\n" %
(args[0], long_action),
noiselevel=-1)
portage.util.writemsg(module_opts(module_controller, args[0]),
noiselevel=-1)
sys.exit(1)
# need to pass the parser options dict to the modules
# so they are available if needed.
task_opts = options.__dict__
task_opts['return-messages'] = True
taskmaster = TaskHandler(callback=print_results, module_output=sys.stdout)
returncodes = taskmaster.run_tasks(tasks, func, status, options=task_opts)
sys.exit(False in returncodes)
def _exec(binary, mycommand, opt_name, fd_pipes, env, gid, groups, uid, umask,
cwd, pre_exec, close_fds, unshare_net, unshare_ipc, unshare_mount,
unshare_pid, cgroup):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: Integer
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param cwd: Current working directory
@type cwd: String
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@param unshare_net: If True, networking will be unshared from the spawned process
@type unshare_net: Boolean
@param unshare_ipc: If True, IPC will be unshared from the spawned process
@type unshare_ipc: Boolean
@param unshare_mount: If True, mount namespace will be unshared and mounts will
be private to the namespace
@type unshare_mount: Boolean
@param unshare_pid: If True, PID ns will be unshared from the spawned process
@type unshare_pid: Boolean
@param cgroup: CGroup path to bind the process to
@type cgroup: String
@rtype: None
@return: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
if binary is portage._python_interpreter:
# NOTE: PyPy 1.7 will die due to "libary path not found" if argv[0]
# does not contain the full path of the binary.
opt_name = binary
else:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Avoid a potential UnicodeEncodeError from os.execve().
myargs = [
_unicode_encode(x, encoding=_encodings['fs'], errors='strict')
for x in myargs
]
# Use default signal handlers in order to avoid problems
# killing subprocesses as reported in bug #353239.
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
# Unregister SIGCHLD handler and wakeup_fd for the parent
# process's event loop (bug 655656).
signal.signal(signal.SIGCHLD, signal.SIG_DFL)
try:
wakeup_fd = signal.set_wakeup_fd(-1)
if wakeup_fd > 0:
os.close(wakeup_fd)
except (ValueError, OSError):
pass
# Quiet killing of subprocesses by SIGPIPE (see bug #309001).
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
# Avoid issues triggered by inheritance of SIGQUIT handler from
# the parent process (see bug #289486).
signal.signal(signal.SIGQUIT, signal.SIG_DFL)
_setup_pipes(fd_pipes, close_fds=close_fds, inheritable=True)
# Add to cgroup
# it's better to do it from the child since we can guarantee
# it is done before we start forking children
if cgroup:
with open(os.path.join(cgroup, 'cgroup.procs'), 'a') as f:
f.write('%d\n' % os.getpid())
# Unshare (while still uid==0)
if unshare_net or unshare_ipc or unshare_mount or unshare_pid:
filename = find_library("c")
if filename is not None:
libc = LoadLibrary(filename)
if libc is not None:
# from /usr/include/bits/sched.h
CLONE_NEWNS = 0x00020000
CLONE_NEWIPC = 0x08000000
CLONE_NEWPID = 0x20000000
CLONE_NEWNET = 0x40000000
flags = 0
if unshare_net:
flags |= CLONE_NEWNET
if unshare_ipc:
flags |= CLONE_NEWIPC
if unshare_mount:
# NEWNS = mount namespace
flags |= CLONE_NEWNS
if unshare_pid:
# we also need mount namespace for slave /proc
flags |= CLONE_NEWPID | CLONE_NEWNS
try:
if libc.unshare(flags) != 0:
writemsg(
"Unable to unshare: %s\n" %
(errno.errorcode.get(ctypes.get_errno(), '?')),
noiselevel=-1)
else:
if unshare_pid:
# pid namespace requires us to become init
fork_ret = os.fork()
if fork_ret != 0:
os.execv(portage._python_interpreter, [
portage._python_interpreter,
os.path.join(portage._bin_path,
'pid-ns-init'),
'%s' % fork_ret,
])
if unshare_mount:
# mark the whole filesystem as slave to avoid
# mounts escaping the namespace
s = subprocess.Popen(
['mount', '--make-rslave', '/'])
mount_ret = s.wait()
if mount_ret != 0:
# TODO: should it be fatal maybe?
writemsg("Unable to mark mounts slave: %d\n" %
(mount_ret, ),
noiselevel=-1)
if unshare_pid:
# we need at least /proc being slave
s = subprocess.Popen(
['mount', '--make-slave', '/proc'])
mount_ret = s.wait()
if mount_ret != 0:
# can't proceed with shared /proc
writemsg("Unable to mark /proc slave: %d\n" %
(mount_ret, ),
noiselevel=-1)
os._exit(1)
# mount new /proc for our namespace
s = subprocess.Popen(
['mount', '-t', 'proc', 'proc', '/proc'])
mount_ret = s.wait()
if mount_ret != 0:
writemsg("Unable to mount new /proc: %d\n" %
(mount_ret, ),
noiselevel=-1)
os._exit(1)
if unshare_net:
# 'up' the loopback
IFF_UP = 0x1
ifreq = struct.pack('16sh', b'lo', IFF_UP)
SIOCSIFFLAGS = 0x8914
sock = socket.socket(socket.AF_INET,
socket.SOCK_DGRAM, 0)
try:
fcntl.ioctl(sock, SIOCSIFFLAGS, ifreq)
except IOError as e:
writemsg(
"Unable to enable loopback interface: %s\n"
% (errno.errorcode.get(e.errno, '?')),
noiselevel=-1)
sock.close()
except AttributeError:
# unshare() not supported by libc
pass
# Set requested process permissions.
if gid:
# Cast proxies to int, in case it matters.
os.setgid(int(gid))
if groups:
os.setgroups(groups)
if uid:
# Cast proxies to int, in case it matters.
os.setuid(int(uid))
if umask:
os.umask(umask)
if cwd is not None:
os.chdir(cwd)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def _lockfile_iteration(mypath,
wantnewlockfile=False,
unlinkfile=False,
waiting_msg=None,
flags=0):
"""
Acquire a lock on mypath, without retry. Return None if the lockfile
was removed by previous lock holder (caller must retry).
@param mypath: lock file path
@type mypath: str
@param wantnewlockfile: use a separate new lock file
@type wantnewlockfile: bool
@param unlinkfile: remove lock file prior to unlock
@type unlinkfile: bool
@param waiting_msg: message to show before blocking
@type waiting_msg: str
@param flags: lock flags (only supports os.O_NONBLOCK)
@type flags: int
@rtype: bool
@return: unlockfile tuple on success, None if retry is needed
"""
if not mypath:
raise InvalidData(_("Empty path given"))
# Since Python 3.4, chown requires int type (no proxies).
portage_gid = int(portage.data.portage_gid)
# Support for file object or integer file descriptor parameters is
# deprecated due to ambiguity in whether or not it's safe to close
# the file descriptor, making it prone to "Bad file descriptor" errors
# or file descriptor leaks.
if isinstance(mypath, basestring) and mypath[-1] == '/':
mypath = mypath[:-1]
lockfilename_path = mypath
if hasattr(mypath, 'fileno'):
warnings.warn(
"portage.locks.lockfile() support for "
"file object parameters is deprecated. Use a file path instead.",
DeprecationWarning,
stacklevel=2)
lockfilename_path = getattr(mypath, 'name', None)
mypath = mypath.fileno()
if isinstance(mypath, int):
warnings.warn(
"portage.locks.lockfile() support for integer file "
"descriptor parameters is deprecated. Use a file path instead.",
DeprecationWarning,
stacklevel=2)
lockfilename = mypath
wantnewlockfile = 0
unlinkfile = 0
elif wantnewlockfile:
base, tail = os.path.split(mypath)
lockfilename = os.path.join(base, "." + tail + ".portage_lockfile")
lockfilename_path = lockfilename
unlinkfile = 1
else:
lockfilename = mypath
if isinstance(mypath, basestring):
if not os.path.exists(os.path.dirname(mypath)):
raise DirectoryNotFound(os.path.dirname(mypath))
preexisting = os.path.exists(lockfilename)
old_mask = os.umask(000)
try:
while True:
try:
myfd = os.open(lockfilename, os.O_CREAT | os.O_RDWR, 0o660)
except OSError as e:
if e.errno in (errno.ENOENT,
errno.ESTALE) and os.path.isdir(
os.path.dirname(lockfilename)):
# Retry required for NFS (see bug 636798).
continue
else:
_raise_exc(e)
else:
break
if not preexisting:
try:
if portage.data.secpass >= 1 and os.stat(
lockfilename).st_gid != portage_gid:
os.chown(lockfilename, -1, portage_gid)
except OSError as e:
if e.errno in (errno.ENOENT, errno.ESTALE):
os.close(myfd)
return None
else:
writemsg("%s: chown('%s', -1, %d)\n" % \
(e, lockfilename, portage_gid), noiselevel=-1)
writemsg(_("Cannot chown a lockfile: '%s'\n") % \
lockfilename, noiselevel=-1)
writemsg(_("Group IDs of current user: %s\n") % \
" ".join(str(n) for n in os.getgroups()),
noiselevel=-1)
finally:
os.umask(old_mask)
elif isinstance(mypath, int):
myfd = mypath
else:
raise ValueError(_("Unknown type passed in '%s': '%s'") % \
(type(mypath), mypath))
# try for a non-blocking lock, if it's held, throw a message
# we're waiting on lockfile and use a blocking attempt.
locking_method = portage._eintr_func_wrapper(_get_lock_fn())
try:
if "__PORTAGE_TEST_HARDLINK_LOCKS" in os.environ:
raise IOError(errno.ENOSYS, "Function not implemented")
locking_method(myfd, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError as e:
if not hasattr(e, "errno"):
raise
if e.errno in (errno.EACCES, errno.EAGAIN, errno.ENOLCK):
# resource temp unavailable; eg, someone beat us to the lock.
if flags & os.O_NONBLOCK:
os.close(myfd)
raise TryAgain(mypath)
global _quiet
if _quiet:
out = None
else:
out = portage.output.EOutput()
if waiting_msg is None:
if isinstance(mypath, int):
waiting_msg = _("waiting for lock on fd %i") % myfd
else:
waiting_msg = _("waiting for lock on %s") % lockfilename
if out is not None:
out.ebegin(waiting_msg)
# try for the exclusive lock now.
enolock_msg_shown = False
while True:
try:
locking_method(myfd, fcntl.LOCK_EX)
except EnvironmentError as e:
if e.errno == errno.ENOLCK:
# This is known to occur on Solaris NFS (see
# bug #462694). Assume that the error is due
# to temporary exhaustion of record locks,
# and loop until one becomes available.
if not enolock_msg_shown:
enolock_msg_shown = True
if isinstance(mypath, int):
context_desc = _("Error while waiting "
"to lock fd %i") % myfd
else:
context_desc = _("Error while waiting "
"to lock '%s'") % lockfilename
writemsg("\n!!! %s: %s\n" % (context_desc, e),
noiselevel=-1)
time.sleep(_HARDLINK_POLL_LATENCY)
continue
if out is not None:
out.eend(1, str(e))
raise
else:
break
if out is not None:
out.eend(os.EX_OK)
elif e.errno in (errno.ENOSYS, ):
# We're not allowed to lock on this FS.
if not isinstance(lockfilename, int):
# If a file object was passed in, it's not safe
# to close the file descriptor because it may
# still be in use.
os.close(myfd)
lockfilename_path = _unicode_decode(lockfilename_path,
encoding=_encodings['fs'],
errors='strict')
if not isinstance(lockfilename_path, basestring):
raise
link_success = hardlink_lockfile(lockfilename_path,
waiting_msg=waiting_msg,
flags=flags)
if not link_success:
raise
lockfilename = lockfilename_path
locking_method = None
myfd = HARDLINK_FD
else:
raise
if isinstance(lockfilename,
basestring) and myfd != HARDLINK_FD and unlinkfile:
try:
removed = _lockfile_was_removed(myfd, lockfilename)
except Exception:
# Do not leak the file descriptor here.
os.close(myfd)
raise
else:
if removed:
# Removed by previous lock holder... Caller will retry...
os.close(myfd)
return None
if myfd != HARDLINK_FD:
# FD_CLOEXEC is enabled by default in Python >=3.4.
if sys.hexversion < 0x3040000:
try:
fcntl.FD_CLOEXEC
except AttributeError:
pass
else:
fcntl.fcntl(
myfd, fcntl.F_SETFD,
fcntl.fcntl(myfd, fcntl.F_GETFD) | fcntl.FD_CLOEXEC)
_open_fds.add(myfd)
writemsg(str((lockfilename, myfd, unlinkfile)) + "\n", 1)
return (lockfilename, myfd, unlinkfile, locking_method)
def emerge_main(args=None):
"""
@param args: command arguments (default: sys.argv[1:])
@type args: list
"""
if args is None:
args = sys.argv[1:]
args = portage._decode_argv(args)
# Use system locale.
try:
locale.setlocale(locale.LC_ALL, '')
except locale.Error as e:
writemsg_level("setlocale: %s\n" % e, level=logging.WARN)
# Disable color until we're sure that it should be enabled (after
# EMERGE_DEFAULT_OPTS has been parsed).
portage.output.havecolor = 0
# This first pass is just for options that need to be known as early as
# possible, such as --config-root. They will be parsed again later,
# together with EMERGE_DEFAULT_OPTS (which may vary depending on the
# the value of --config-root).
myaction, myopts, myfiles = parse_opts(args, silent=True)
if "--debug" in myopts:
os.environ["PORTAGE_DEBUG"] = "1"
if "--config-root" in myopts:
os.environ["PORTAGE_CONFIGROOT"] = myopts["--config-root"]
if "--root" in myopts:
os.environ["ROOT"] = myopts["--root"]
if "--prefix" in myopts:
os.environ["EPREFIX"] = myopts["--prefix"]
if "--accept-properties" in myopts:
os.environ["ACCEPT_PROPERTIES"] = myopts["--accept-properties"]
if "--accept-restrict" in myopts:
os.environ["ACCEPT_RESTRICT"] = myopts["--accept-restrict"]
# optimize --help (no need to load config / EMERGE_DEFAULT_OPTS)
if myaction == "help":
emerge_help()
return os.EX_OK
elif myaction == "moo":
print(COWSAY_MOO % platform.system())
return os.EX_OK
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
if myaction == "sync":
portage._sync_mode = True
emerge_config = load_emerge_config(action=myaction,
args=myfiles,
opts=myopts)
rval = profile_check(emerge_config.trees, emerge_config.action)
if rval != os.EX_OK:
return rval
tmpcmdline = []
if "--ignore-default-opts" not in myopts:
tmpcmdline.extend(
portage.util.shlex_split(
emerge_config.target_config.settings.get(
"EMERGE_DEFAULT_OPTS", "")))
tmpcmdline.extend(args)
emerge_config.action, emerge_config.opts, emerge_config.args = \
parse_opts(tmpcmdline)
try:
return run_action(emerge_config)
finally:
# Call destructors for our portdbapi instances.
for x in emerge_config.trees.values():
if "porttree" in x.lazy_items:
continue
x["porttree"].dbapi.close_caches()
from repoman.argparser import parse_args
from repoman.qa_data import QAData
from repoman.qa_data import format_qa_output, format_qa_output_column
from repoman.repos import RepoSettings
from repoman.scanner import Scanner
from repoman import utilities
from repoman.modules.vcs.settings import VCSSettings
from repoman import VERSION
if sys.hexversion >= 0x3000000:
basestring = str
bad = create_color_func("BAD")
# A sane umask is needed for files that portage creates.
os.umask(0o22)
LOGLEVEL = logging.WARNING
portage.util.initialize_logger(LOGLEVEL)
VALID_VERSIONS = [
1,
]
def repoman_main(argv):
config_root = os.environ.get("PORTAGE_CONFIGROOT")
repoman_settings = portage.config(config_root=config_root,
local_config=False)
repoman_settings.valid_versions = VALID_VERSIONS
def lockfile(mypath,
wantnewlockfile=0,
unlinkfile=0,
waiting_msg=None,
flags=0):
"""
If wantnewlockfile is True then this creates a lockfile in the parent
directory as the file: '.' + basename + '.portage_lockfile'.
"""
if not mypath:
raise InvalidData(_("Empty path given"))
# Support for file object or integer file descriptor parameters is
# deprecated due to ambiguity in whether or not it's safe to close
# the file descriptor, making it prone to "Bad file descriptor" errors
# or file descriptor leaks.
if isinstance(mypath, basestring) and mypath[-1] == '/':
mypath = mypath[:-1]
lockfilename_path = mypath
if hasattr(mypath, 'fileno'):
warnings.warn(
"portage.locks.lockfile() support for "
"file object parameters is deprecated. Use a file path instead.",
DeprecationWarning,
stacklevel=2)
lockfilename_path = getattr(mypath, 'name', None)
mypath = mypath.fileno()
if isinstance(mypath, int):
warnings.warn(
"portage.locks.lockfile() support for integer file "
"descriptor parameters is deprecated. Use a file path instead.",
DeprecationWarning,
stacklevel=2)
lockfilename = mypath
wantnewlockfile = 0
unlinkfile = 0
elif wantnewlockfile:
base, tail = os.path.split(mypath)
lockfilename = os.path.join(base, "." + tail + ".portage_lockfile")
lockfilename_path = lockfilename
unlinkfile = 1
else:
lockfilename = mypath
if isinstance(mypath, basestring):
if not os.path.exists(os.path.dirname(mypath)):
raise DirectoryNotFound(os.path.dirname(mypath))
preexisting = os.path.exists(lockfilename)
old_mask = os.umask(000)
try:
try:
myfd = os.open(lockfilename, os.O_CREAT | os.O_RDWR, 0o660)
except OSError as e:
func_call = "open('%s')" % lockfilename
if e.errno == OperationNotPermitted.errno:
raise OperationNotPermitted(func_call)
elif e.errno == PermissionDenied.errno:
raise PermissionDenied(func_call)
else:
raise
if not preexisting:
try:
if os.stat(lockfilename).st_gid != portage_gid:
os.chown(lockfilename, -1, portage_gid)
except OSError as e:
if e.errno in (errno.ENOENT, errno.ESTALE):
return lockfile(mypath,
wantnewlockfile=wantnewlockfile,
unlinkfile=unlinkfile,
waiting_msg=waiting_msg,
flags=flags)
else:
writemsg("%s: chown('%s', -1, %d)\n" % \
(e, lockfilename, portage_gid), noiselevel=-1)
writemsg(_("Cannot chown a lockfile: '%s'\n") % \
lockfilename, noiselevel=-1)
writemsg(_("Group IDs of current user: %s\n") % \
" ".join(str(n) for n in os.getgroups()),
noiselevel=-1)
finally:
os.umask(old_mask)
elif isinstance(mypath, int):
myfd = mypath
else:
raise ValueError(_("Unknown type passed in '%s': '%s'") % \
(type(mypath), mypath))
# try for a non-blocking lock, if it's held, throw a message
# we're waiting on lockfile and use a blocking attempt.
locking_method = _default_lock_fn
try:
if "__PORTAGE_TEST_HARDLINK_LOCKS" in os.environ:
raise IOError(errno.ENOSYS, "Function not implemented")
locking_method(myfd, fcntl.LOCK_EX | fcntl.LOCK_NB)
except IOError as e:
if not hasattr(e, "errno"):
raise
if e.errno in (errno.EACCES, errno.EAGAIN):
# resource temp unavailable; eg, someone beat us to the lock.
if flags & os.O_NONBLOCK:
os.close(myfd)
raise TryAgain(mypath)
global _quiet
if _quiet:
out = None
else:
out = portage.output.EOutput()
if waiting_msg is None:
if isinstance(mypath, int):
waiting_msg = _("waiting for lock on fd %i") % myfd
else:
waiting_msg = _("waiting for lock on %s\n") % lockfilename
if out is not None:
out.ebegin(waiting_msg)
# try for the exclusive lock now.
try:
locking_method(myfd, fcntl.LOCK_EX)
except EnvironmentError as e:
if out is not None:
out.eend(1, str(e))
raise
if out is not None:
out.eend(os.EX_OK)
elif e.errno in (errno.ENOSYS, errno.ENOLCK):
# We're not allowed to lock on this FS.
if not isinstance(lockfilename, int):
# If a file object was passed in, it's not safe
# to close the file descriptor because it may
# still be in use.
os.close(myfd)
lockfilename_path = _unicode_decode(lockfilename_path,
encoding=_encodings['fs'],
errors='strict')
if not isinstance(lockfilename_path, basestring):
raise
link_success = hardlink_lockfile(lockfilename_path,
waiting_msg=waiting_msg,
flags=flags)
if not link_success:
raise
lockfilename = lockfilename_path
locking_method = None
myfd = HARDLINK_FD
else:
raise
if isinstance(lockfilename, basestring) and \
myfd != HARDLINK_FD and _fstat_nlink(myfd) == 0:
# The file was deleted on us... Keep trying to make one...
os.close(myfd)
writemsg(_("lockfile recurse\n"), 1)
lockfilename, myfd, unlinkfile, locking_method = lockfile(
mypath,
wantnewlockfile=wantnewlockfile,
unlinkfile=unlinkfile,
waiting_msg=waiting_msg,
flags=flags)
if myfd != HARDLINK_FD:
_open_fds.add(myfd)
writemsg(str((lockfilename, myfd, unlinkfile)) + "\n", 1)
return (lockfilename, myfd, unlinkfile, locking_method)
def _exec(binary, mycommand, opt_name, fd_pipes, env, gid, groups, uid, umask,
pre_exec):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: Integer
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@rtype: None
@return: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
if binary is portage._python_interpreter:
# NOTE: PyPy 1.7 will die due to "libary path not found" if argv[0]
# does not contain the full path of the binary.
opt_name = binary
else:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Use default signal handlers in order to avoid problems
# killing subprocesses as reported in bug #353239.
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
# Quiet killing of subprocesses by SIGPIPE (see bug #309001).
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
# Avoid issues triggered by inheritance of SIGQUIT handler from
# the parent process (see bug #289486).
signal.signal(signal.SIGQUIT, signal.SIG_DFL)
_setup_pipes(fd_pipes)
# Set requested process permissions.
if gid:
os.setgid(gid)
if groups:
os.setgroups(groups)
if uid:
os.setuid(uid)
if umask:
os.umask(umask)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def _exec(binary, mycommand, opt_name, fd_pipes, env, gid, groups, uid, umask,
pre_exec, close_fds, unshare_net, unshare_ipc, cgroup):
"""
Execute a given binary with options
@param binary: Name of program to execute
@type binary: String
@param mycommand: Options for program
@type mycommand: String
@param opt_name: Name of process (defaults to binary)
@type opt_name: String
@param fd_pipes: Mapping pipes to destination; { 0:0, 1:1, 2:2 }
@type fd_pipes: Dictionary
@param env: Key,Value mapping for Environmental Variables
@type env: Dictionary
@param gid: Group ID to run the process under
@type gid: Integer
@param groups: Groups the Process should be in.
@type groups: Integer
@param uid: User ID to run the process under
@type uid: Integer
@param umask: an int representing a unix umask (see man chmod for umask details)
@type umask: Integer
@param pre_exec: A function to be called with no arguments just prior to the exec call.
@type pre_exec: callable
@param unshare_net: If True, networking will be unshared from the spawned process
@type unshare_net: Boolean
@param unshare_ipc: If True, IPC will be unshared from the spawned process
@type unshare_ipc: Boolean
@param cgroup: CGroup path to bind the process to
@type cgroup: String
@rtype: None
@return: Never returns (calls os.execve)
"""
# If the process we're creating hasn't been given a name
# assign it the name of the executable.
if not opt_name:
if binary is portage._python_interpreter:
# NOTE: PyPy 1.7 will die due to "libary path not found" if argv[0]
# does not contain the full path of the binary.
opt_name = binary
else:
opt_name = os.path.basename(binary)
# Set up the command's argument list.
myargs = [opt_name]
myargs.extend(mycommand[1:])
# Avoid a potential UnicodeEncodeError from os.execve().
myargs = [_unicode_encode(x, encoding=_encodings['fs'],
errors='strict') for x in myargs]
# Use default signal handlers in order to avoid problems
# killing subprocesses as reported in bug #353239.
signal.signal(signal.SIGINT, signal.SIG_DFL)
signal.signal(signal.SIGTERM, signal.SIG_DFL)
# Quiet killing of subprocesses by SIGPIPE (see bug #309001).
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
# Avoid issues triggered by inheritance of SIGQUIT handler from
# the parent process (see bug #289486).
signal.signal(signal.SIGQUIT, signal.SIG_DFL)
_setup_pipes(fd_pipes, close_fds=close_fds, inheritable=True)
# Add to cgroup
# it's better to do it from the child since we can guarantee
# it is done before we start forking children
if cgroup:
with open(os.path.join(cgroup, 'cgroup.procs'), 'a') as f:
f.write('%d\n' % os.getpid())
# Unshare (while still uid==0)
if unshare_net or unshare_ipc:
filename = find_library("c")
if filename is not None:
libc = LoadLibrary(filename)
if libc is not None:
CLONE_NEWIPC = 0x08000000
CLONE_NEWNET = 0x40000000
flags = 0
if unshare_net:
flags |= CLONE_NEWNET
if unshare_ipc:
flags |= CLONE_NEWIPC
try:
if libc.unshare(flags) != 0:
writemsg("Unable to unshare: %s\n" % (
errno.errorcode.get(ctypes.get_errno(), '?')),
noiselevel=-1)
else:
if unshare_net:
# 'up' the loopback
IFF_UP = 0x1
ifreq = struct.pack('16sh', b'lo', IFF_UP)
SIOCSIFFLAGS = 0x8914
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, 0)
try:
fcntl.ioctl(sock, SIOCSIFFLAGS, ifreq)
except IOError as e:
writemsg("Unable to enable loopback interface: %s\n" % (
errno.errorcode.get(e.errno, '?')),
noiselevel=-1)
sock.close()
except AttributeError:
# unshare() not supported by libc
pass
# Set requested process permissions.
if gid:
# Cast proxies to int, in case it matters.
os.setgid(int(gid))
if groups:
os.setgroups(groups)
if uid:
# Cast proxies to int, in case it matters.
os.setuid(int(uid))
if umask:
os.umask(umask)
if pre_exec:
pre_exec()
# And switch to the new process.
os.execve(binary, myargs, env)
def emaint_main(myargv):
# Similar to emerge, emaint needs a default umask so that created
# files (such as the world file) have sane permissions.
os.umask(0o22)
module_path = os.path.join(
(os.path.dirname(
os.path.realpath(__file__))), "modules"
)
module_controller = Modules(
path=module_path,
namepath="portage.emaint.modules")
module_names = module_controller.module_names[:]
module_names.insert(0, "all")
parser = ArgumentParser(usage=usage(module_controller))
# add default options
parser_options = []
for opt in DEFAULT_OPTIONS:
parser_options.append(OptionItem(DEFAULT_OPTIONS[opt]))
for mod in module_names[1:]:
desc = module_controller.get_func_descriptions(mod)
if desc:
for opt in desc:
parser_options.append(OptionItem(desc[opt]))
desc = module_controller.get_opt_descriptions(mod)
if desc:
for opt in desc:
parser_options.append(OptionItem(desc[opt]))
for opt in parser_options:
parser.add_argument(*opt.pargs, **opt.kwargs)
options, args = parser.parse_known_args(args=myargv)
if options.version:
print(portage.VERSION)
return os.EX_OK
if len(args) != 1:
parser.error("Incorrect number of arguments")
if args[0] not in module_names:
parser.error("%s target is not a known target" % args[0])
check_opt = None
func = status = long_action = None
for opt in parser_options:
if opt.long == '--check':
# Default action
check_opt = opt
if opt.status and getattr(options, opt.target, False):
if long_action is not None:
parser.error("--%s and %s are exclusive options" %
(long_action, opt.long))
status = opt.status
func = opt.func
long_action = opt.long.lstrip('-')
if long_action is None:
#print("DEBUG: long_action is None: setting to 'check'")
long_action = 'check'
func = check_opt.func
status = check_opt.status
if args[0] == "all":
tasks = []
for m in module_names[1:]:
#print("DEBUG: module: %s, functions: " % (m, str(module_controller.get_functions(m))))
if long_action in module_controller.get_functions(m):
tasks.append(module_controller.get_class(m))
elif long_action in module_controller.get_functions(args[0]):
tasks = [module_controller.get_class(args[0] )]
else:
portage.util.writemsg(
"\nERROR: module '%s' does not have option '--%s'\n\n" %
(args[0], long_action), noiselevel=-1)
portage.util.writemsg(module_opts(module_controller, args[0]),
noiselevel=-1)
sys.exit(1)
# need to pass the parser options dict to the modules
# so they are available if needed.
task_opts = options.__dict__
task_opts['return-messages'] = True
taskmaster = TaskHandler(callback=print_results, module_output=sys.stdout)
taskmaster.run_tasks(tasks, func, status, options=task_opts)
from repoman.argparser import parse_args
from repoman.qa_data import QAData
from repoman.qa_data import format_qa_output, format_qa_output_column
from repoman.repos import RepoSettings
from repoman.scanner import Scanner
from repoman import utilities
from repoman.modules.vcs.settings import VCSSettings
from repoman import VERSION
if sys.hexversion >= 0x3000000:
basestring = str
bad = create_color_func("BAD")
# A sane umask is needed for files that portage creates.
os.umask(0o22)
LOGLEVEL = logging.WARNING
portage.util.initialize_logger(LOGLEVEL)
VALID_VERSIONS = [1,]
def repoman_main(argv):
config_root = os.environ.get("PORTAGE_CONFIGROOT")
repoman_settings = portage.config(config_root=config_root, local_config=False)
repoman_settings.valid_versions = VALID_VERSIONS
if repoman_settings.get("NOCOLOR", "").lower() in ("yes", "true") or \
repoman_settings.get('TERM') == 'dumb' or \
not sys.stdout.isatty():
nocolor()
def lockfile(mypath, wantnewlockfile=0, unlinkfile=0,
waiting_msg=None, flags=0):
"""
If wantnewlockfile is True then this creates a lockfile in the parent
directory as the file: '.' + basename + '.portage_lockfile'.
"""
import fcntl
if not mypath:
raise InvalidData(_("Empty path given"))
if isinstance(mypath, basestring) and mypath[-1] == '/':
mypath = mypath[:-1]
if hasattr(mypath, 'fileno'):
mypath = mypath.fileno()
if isinstance(mypath, int):
lockfilename = mypath
wantnewlockfile = 0
unlinkfile = 0
elif wantnewlockfile:
base, tail = os.path.split(mypath)
lockfilename = os.path.join(base, "." + tail + ".portage_lockfile")
del base, tail
unlinkfile = 1
else:
lockfilename = mypath
if isinstance(mypath, basestring):
if not os.path.exists(os.path.dirname(mypath)):
raise DirectoryNotFound(os.path.dirname(mypath))
preexisting = os.path.exists(lockfilename)
old_mask = os.umask(000)
try:
try:
myfd = os.open(lockfilename, os.O_CREAT|os.O_RDWR, 0o660)
except OSError as e:
func_call = "open('%s')" % lockfilename
if e.errno == OperationNotPermitted.errno:
raise OperationNotPermitted(func_call)
elif e.errno == PermissionDenied.errno:
raise PermissionDenied(func_call)
else:
raise
if not preexisting:
try:
if os.stat(lockfilename).st_gid != portage_gid:
os.chown(lockfilename, -1, portage_gid)
except OSError as e:
if e.errno in (errno.ENOENT, errno.ESTALE):
return lockfile(mypath,
wantnewlockfile=wantnewlockfile,
unlinkfile=unlinkfile, waiting_msg=waiting_msg,
flags=flags)
else:
writemsg(_("Cannot chown a lockfile: '%s'\n") % \
lockfilename, noiselevel=-1)
finally:
os.umask(old_mask)
elif isinstance(mypath, int):
myfd = mypath
else:
raise ValueError(_("Unknown type passed in '%s': '%s'") % \
(type(mypath), mypath))
# try for a non-blocking lock, if it's held, throw a message
# we're waiting on lockfile and use a blocking attempt.
locking_method = fcntl.lockf
try:
fcntl.lockf(myfd,fcntl.LOCK_EX|fcntl.LOCK_NB)
except IOError as e:
if "errno" not in dir(e):
raise
if e.errno in (errno.EACCES, errno.EAGAIN):
# resource temp unavailable; eg, someone beat us to the lock.
if flags & os.O_NONBLOCK:
raise TryAgain(mypath)
global _quiet
out = EOutput()
out.quiet = _quiet
if waiting_msg is None:
if isinstance(mypath, int):
waiting_msg = _("waiting for lock on fd %i") % myfd
else:
waiting_msg = _("waiting for lock on %s\n") % lockfilename
out.ebegin(waiting_msg)
# try for the exclusive lock now.
try:
fcntl.lockf(myfd, fcntl.LOCK_EX)
except EnvironmentError as e:
out.eend(1, str(e))
raise
out.eend(os.EX_OK)
elif e.errno == errno.ENOLCK:
# We're not allowed to lock on this FS.
os.close(myfd)
link_success = False
if lockfilename == str(lockfilename):
if wantnewlockfile:
try:
if os.stat(lockfilename)[stat.ST_NLINK] == 1:
os.unlink(lockfilename)
except OSError:
pass
link_success = hardlink_lockfile(lockfilename)
if not link_success:
raise
locking_method = None
myfd = HARDLINK_FD
else:
raise
if isinstance(lockfilename, basestring) and \
myfd != HARDLINK_FD and _fstat_nlink(myfd) == 0:
# The file was deleted on us... Keep trying to make one...
os.close(myfd)
writemsg(_("lockfile recurse\n"), 1)
lockfilename, myfd, unlinkfile, locking_method = lockfile(
mypath, wantnewlockfile=wantnewlockfile, unlinkfile=unlinkfile,
waiting_msg=waiting_msg, flags=flags)
writemsg(str((lockfilename,myfd,unlinkfile))+"\n",1)
return (lockfilename,myfd,unlinkfile,locking_method)
def emerge_main():
global portage # NFC why this is necessary now - genone
portage._disable_legacy_globals()
# Disable color until we're sure that it should be enabled (after
# EMERGE_DEFAULT_OPTS has been parsed).
portage.output.havecolor = 0
# This first pass is just for options that need to be known as early as
# possible, such as --config-root. They will be parsed again later,
# together with EMERGE_DEFAULT_OPTS (which may vary depending on the
# the value of --config-root).
myaction, myopts, myfiles = parse_opts(sys.argv[1:], silent=True)
if "--debug" in myopts:
os.environ["PORTAGE_DEBUG"] = "1"
if "--config-root" in myopts:
os.environ["PORTAGE_CONFIGROOT"] = myopts["--config-root"]
if "--root" in myopts:
os.environ["ROOT"] = myopts["--root"]
if "--accept-properties" in myopts:
os.environ["ACCEPT_PROPERTIES"] = myopts["--accept-properties"]
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
settings, trees, mtimedb = load_emerge_config()
portdb = trees[settings["ROOT"]]["porttree"].dbapi
rval = profile_check(trees, myaction)
if rval != os.EX_OK:
return rval
if myaction not in ('help', 'info', 'version') and \
_global_updates(trees, mtimedb["updates"]):
mtimedb.commit()
# Reload the whole config from scratch.
settings, trees, mtimedb = load_emerge_config(trees=trees)
portdb = trees[settings["ROOT"]]["porttree"].dbapi
xterm_titles = "notitles" not in settings.features
if xterm_titles:
xtermTitle("emerge")
tmpcmdline = []
if "--ignore-default-opts" not in myopts:
tmpcmdline.extend(settings["EMERGE_DEFAULT_OPTS"].split())
tmpcmdline.extend(sys.argv[1:])
myaction, myopts, myfiles = parse_opts(tmpcmdline)
if "--digest" in myopts:
os.environ["FEATURES"] = os.environ.get("FEATURES","") + " digest"
# Reload the whole config from scratch so that the portdbapi internal
# config is updated with new FEATURES.
settings, trees, mtimedb = load_emerge_config(trees=trees)
portdb = trees[settings["ROOT"]]["porttree"].dbapi
adjust_configs(myopts, trees)
apply_priorities(settings)
if myaction == 'version':
writemsg_stdout(getportageversion(
settings["PORTDIR"], settings["ROOT"],
settings.profile_path, settings["CHOST"],
trees[settings["ROOT"]]["vartree"].dbapi) + '\n', noiselevel=-1)
return 0
elif myaction == 'help':
_emerge.help.help(myopts, portage.output.havecolor)
return 0
spinner = stdout_spinner()
if "candy" in settings.features:
spinner.update = spinner.update_scroll
if "--quiet" not in myopts:
portage.deprecated_profile_check(settings=settings)
repo_name_check(trees)
repo_name_duplicate_check(trees)
config_protect_check(trees)
check_procfs()
if "getbinpkg" in settings.features:
myopts["--getbinpkg"] = True
if "--getbinpkgonly" in myopts:
myopts["--getbinpkg"] = True
if "--getbinpkgonly" in myopts:
myopts["--usepkgonly"] = True
if "--getbinpkg" in myopts:
myopts["--usepkg"] = True
if "--usepkgonly" in myopts:
myopts["--usepkg"] = True
if "buildpkg" in settings.features or "--buildpkgonly" in myopts:
myopts["--buildpkg"] = True
if "--buildpkgonly" in myopts:
# --buildpkgonly will not merge anything, so
# it cancels all binary package options.
for opt in ("--getbinpkg", "--getbinpkgonly",
"--usepkg", "--usepkgonly"):
myopts.pop(opt, None)
for mytrees in trees.values():
mydb = mytrees["porttree"].dbapi
# Freeze the portdbapi for performance (memoize all xmatch results).
mydb.freeze()
if "--usepkg" in myopts:
# Populate the bintree with current --getbinpkg setting.
# This needs to happen before expand_set_arguments(), in case
# any sets use the bintree.
mytrees["bintree"].populate(
getbinpkgs="--getbinpkg" in myopts)
del mytrees, mydb
if "moo" in myfiles:
print("""
Larry loves Gentoo (""" + platform.system() + """)
_______________________
< Have you mooed today? >
-----------------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
""")
for x in myfiles:
ext = os.path.splitext(x)[1]
if (ext == ".ebuild" or ext == ".tbz2") and os.path.exists(os.path.abspath(x)):
print(colorize("BAD", "\n*** emerging by path is broken and may not always work!!!\n"))
break
root_config = trees[settings["ROOT"]]["root_config"]
if myaction == "list-sets":
writemsg_stdout("".join("%s\n" % s for s in sorted(root_config.sets)))
return os.EX_OK
ensure_required_sets(trees)
# only expand sets for actions taking package arguments
oldargs = myfiles[:]
if myaction in ("clean", "config", "depclean", "info", "prune", "unmerge", None):
myfiles, retval = expand_set_arguments(myfiles, myaction, root_config)
if retval != os.EX_OK:
return retval
# Need to handle empty sets specially, otherwise emerge will react
# with the help message for empty argument lists
if oldargs and not myfiles:
print("emerge: no targets left after set expansion")
return 0
if ("--tree" in myopts) and ("--columns" in myopts):
print("emerge: can't specify both of \"--tree\" and \"--columns\".")
return 1
if '--emptytree' in myopts and '--noreplace' in myopts:
writemsg_level("emerge: can't specify both of " + \
"\"--emptytree\" and \"--noreplace\".\n",
level=logging.ERROR, noiselevel=-1)
return 1
if ("--quiet" in myopts):
spinner.update = spinner.update_quiet
portage.util.noiselimit = -1
if "--fetch-all-uri" in myopts:
myopts["--fetchonly"] = True
if "--skipfirst" in myopts and "--resume" not in myopts:
myopts["--resume"] = True
# Allow -p to remove --ask
if "--pretend" in myopts:
myopts.pop("--ask", None)
# forbid --ask when not in a terminal
# note: this breaks `emerge --ask | tee logfile`, but that doesn't work anyway.
if ("--ask" in myopts) and (not sys.stdin.isatty()):
portage.writemsg("!!! \"--ask\" should only be used in a terminal. Exiting.\n",
noiselevel=-1)
return 1
if settings.get("PORTAGE_DEBUG", "") == "1":
spinner.update = spinner.update_quiet
portage.debug=1
if "python-trace" in settings.features:
import portage.debug
portage.debug.set_trace(True)
if not ("--quiet" in myopts):
if '--nospinner' in myopts or \
settings.get('TERM') == 'dumb' or \
not sys.stdout.isatty():
spinner.update = spinner.update_basic
if "--debug" in myopts:
print("myaction", myaction)
print("myopts", myopts)
if not myaction and not myfiles and "--resume" not in myopts:
_emerge.help.help(myopts, portage.output.havecolor)
return 1
pretend = "--pretend" in myopts
fetchonly = "--fetchonly" in myopts or "--fetch-all-uri" in myopts
buildpkgonly = "--buildpkgonly" in myopts
# check if root user is the current user for the actions where emerge needs this
if portage.secpass < 2:
# We've already allowed "--version" and "--help" above.
if "--pretend" not in myopts and myaction not in ("search","info"):
need_superuser = myaction in ('clean', 'depclean', 'deselect',
'prune', 'unmerge') or not \
(fetchonly or \
(buildpkgonly and secpass >= 1) or \
myaction in ("metadata", "regen") or \
(myaction == "sync" and os.access(settings["PORTDIR"], os.W_OK)))
if portage.secpass < 1 or \
need_superuser:
if need_superuser:
access_desc = "superuser"
else:
access_desc = "portage group"
# Always show portage_group_warning() when only portage group
# access is required but the user is not in the portage group.
from portage.data import portage_group_warning
if "--ask" in myopts:
myopts["--pretend"] = True
del myopts["--ask"]
print(("%s access is required... " + \
"adding --pretend to options\n") % access_desc)
if portage.secpass < 1 and not need_superuser:
portage_group_warning()
else:
sys.stderr.write(("emerge: %s access is required\n") \
% access_desc)
if portage.secpass < 1 and not need_superuser:
portage_group_warning()
return 1
disable_emergelog = False
for x in ("--pretend", "--fetchonly", "--fetch-all-uri"):
if x in myopts:
disable_emergelog = True
break
if myaction in ("search", "info"):
disable_emergelog = True
if disable_emergelog:
""" Disable emergelog for everything except build or unmerge
operations. This helps minimize parallel emerge.log entries that can
confuse log parsers. We especially want it disabled during
parallel-fetch, which uses --resume --fetchonly."""
_emerge.emergelog._disable = True
else:
if 'EMERGE_LOG_DIR' in settings:
try:
# At least the parent needs to exist for the lock file.
portage.util.ensure_dirs(settings['EMERGE_LOG_DIR'])
except portage.exception.PortageException as e:
writemsg_level("!!! Error creating directory for " + \
"EMERGE_LOG_DIR='%s':\n!!! %s\n" % \
(settings['EMERGE_LOG_DIR'], e),
noiselevel=-1, level=logging.ERROR)
else:
global _emerge_log_dir
_emerge_log_dir = settings['EMERGE_LOG_DIR']
if not "--pretend" in myopts:
emergelog(xterm_titles, "Started emerge on: "+\
_unicode_decode(
time.strftime("%b %d, %Y %H:%M:%S", time.localtime()),
encoding=_encodings['content'], errors='replace'))
myelogstr=""
if myopts:
myelogstr=" ".join(myopts)
if myaction:
myelogstr+=" "+myaction
if myfiles:
myelogstr += " " + " ".join(oldargs)
emergelog(xterm_titles, " *** emerge " + myelogstr)
del oldargs
def emergeexitsig(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})
sys.exit(100+signum)
signal.signal(signal.SIGINT, emergeexitsig)
signal.signal(signal.SIGTERM, emergeexitsig)
def emergeexit():
"""This gets out final log message in before we quit."""
if "--pretend" not in myopts:
emergelog(xterm_titles, " *** terminating.")
if xterm_titles:
xtermTitleReset()
portage.atexit_register(emergeexit)
if myaction in ("config", "metadata", "regen", "sync"):
if "--pretend" in myopts:
sys.stderr.write(("emerge: The '%s' action does " + \
"not support '--pretend'.\n") % myaction)
return 1
if "sync" == myaction:
return action_sync(settings, trees, mtimedb, myopts, myaction)
elif "metadata" == myaction:
action_metadata(settings, portdb, myopts)
elif myaction=="regen":
validate_ebuild_environment(trees)
return action_regen(settings, portdb, myopts.get("--jobs"),
myopts.get("--load-average"))
# HELP action
elif "config"==myaction:
validate_ebuild_environment(trees)
action_config(settings, trees, myopts, myfiles)
# SEARCH action
elif "search"==myaction:
validate_ebuild_environment(trees)
action_search(trees[settings["ROOT"]]["root_config"],
myopts, myfiles, spinner)
elif myaction in ('clean', 'depclean', 'deselect', 'prune', 'unmerge'):
validate_ebuild_environment(trees)
rval = action_uninstall(settings, trees, mtimedb["ldpath"],
myopts, myaction, myfiles, spinner)
if not (myaction == 'deselect' or buildpkgonly or fetchonly or pretend):
post_emerge(root_config, myopts, mtimedb, rval)
return rval
elif myaction == 'info':
# Ensure atoms are valid before calling unmerge().
vardb = trees[settings["ROOT"]]["vartree"].dbapi
portdb = trees[settings["ROOT"]]["porttree"].dbapi
bindb = trees[settings["ROOT"]]["bintree"].dbapi
valid_atoms = []
for x in myfiles:
if is_valid_package_atom(x):
try:
#look at the installed files first, if there is no match
#look at the ebuilds, since EAPI 4 allows running pkg_info
#on non-installed packages
valid_atom = dep_expand(x, mydb=vardb, settings=settings)
if valid_atom.cp.split("/")[0] == "null":
valid_atom = dep_expand(x, mydb=portdb, settings=settings)
if valid_atom.cp.split("/")[0] == "null" and "--usepkg" in myopts:
valid_atom = dep_expand(x, mydb=bindb, settings=settings)
valid_atoms.append(valid_atom)
except portage.exception.AmbiguousPackageName as e:
msg = "The short ebuild name \"" + x + \
"\" is ambiguous. Please specify " + \
"one of the following " + \
"fully-qualified ebuild names instead:"
for line in textwrap.wrap(msg, 70):
writemsg_level("!!! %s\n" % (line,),
level=logging.ERROR, noiselevel=-1)
for i in e[0]:
writemsg_level(" %s\n" % colorize("INFORM", i),
level=logging.ERROR, noiselevel=-1)
writemsg_level("\n", level=logging.ERROR, noiselevel=-1)
return 1
continue
msg = []
msg.append("'%s' is not a valid package atom." % (x,))
msg.append("Please check ebuild(5) for full details.")
writemsg_level("".join("!!! %s\n" % line for line in msg),
level=logging.ERROR, noiselevel=-1)
return 1
return action_info(settings, trees, myopts, valid_atoms)
# "update", "system", or just process files:
else:
validate_ebuild_environment(trees)
for x in myfiles:
if x.startswith(SETPREFIX) or \
is_valid_package_atom(x):
continue
if x[:1] == os.sep:
continue
try:
os.lstat(x)
continue
except OSError:
pass
msg = []
msg.append("'%s' is not a valid package atom." % (x,))
msg.append("Please check ebuild(5) for full details.")
writemsg_level("".join("!!! %s\n" % line for line in msg),
level=logging.ERROR, noiselevel=-1)
return 1
if "--pretend" not in myopts:
display_news_notification(root_config, myopts)
retval = action_build(settings, trees, mtimedb,
myopts, myaction, myfiles, spinner)
root_config = trees[settings["ROOT"]]["root_config"]
post_emerge(root_config, myopts, mtimedb, retval)
return retval
def emerge_main(args=None):
"""
@param args: command arguments (default: sys.argv[1:])
@type args: list
"""
if args is None:
args = sys.argv[1:]
args = portage._decode_argv(args)
# Use system locale.
try:
locale.setlocale(locale.LC_ALL, "")
except locale.Error as e:
writemsg_level("setlocale: %s\n" % e, level=logging.WARN)
# Disable color until we're sure that it should be enabled (after
# EMERGE_DEFAULT_OPTS has been parsed).
portage.output.havecolor = 0
# This first pass is just for options that need to be known as early as
# possible, such as --config-root. They will be parsed again later,
# together with EMERGE_DEFAULT_OPTS (which may vary depending on the
# the value of --config-root).
myaction, myopts, myfiles = parse_opts(args, silent=True)
if "--debug" in myopts:
os.environ["PORTAGE_DEBUG"] = "1"
if "--config-root" in myopts:
os.environ["PORTAGE_CONFIGROOT"] = myopts["--config-root"]
if "--sysroot" in myopts:
os.environ["SYSROOT"] = myopts["--sysroot"]
if "--root" in myopts:
os.environ["ROOT"] = myopts["--root"]
if "--prefix" in myopts:
os.environ["EPREFIX"] = myopts["--prefix"]
if "--accept-properties" in myopts:
os.environ["ACCEPT_PROPERTIES"] = myopts["--accept-properties"]
if "--accept-restrict" in myopts:
os.environ["ACCEPT_RESTRICT"] = myopts["--accept-restrict"]
# optimize --help (no need to load config / EMERGE_DEFAULT_OPTS)
if myaction == "help":
emerge_help()
return os.EX_OK
elif myaction == "moo":
print(COWSAY_MOO % platform.system())
return os.EX_OK
elif myaction == "sync":
# need to set this to True now in order for the repository config
# loading to allow new repos with non-existent directories
portage._sync_mode = True
# Verify that /dev/null exists and is a device file as a cheap early
# filter for obviously broken /dev/s.
try:
if os.stat(os.devnull).st_rdev == 0:
writemsg_level("Failed to validate a sane '/dev'.\n"
"'/dev/null' is not a device file.\n",
level=logging.ERROR, noiselevel=-1)
return 1
except OSError:
writemsg_level("Failed to validate a sane '/dev'.\n"
"'/dev/null' does not exist.\n",
level=logging.ERROR, noiselevel=-1)
return 1
# Verify that BASH process substitution works as another cheap early
# filter. Process substitution uses '/dev/fd'.
with open(os.devnull, 'r+b') as dev_null:
fd_pipes = {
0: dev_null.fileno(),
1: dev_null.fileno(),
2: dev_null.fileno(),
}
if portage.process.spawn_bash("[[ $(< <(echo foo) ) == foo ]]",
fd_pipes=fd_pipes) != 0:
writemsg_level("Failed to validate a sane '/dev'.\n"
"bash process substitution doesn't work; this may be an "
"indication of a broken '/dev/fd'.\n",
level=logging.ERROR, noiselevel=-1)
return 1
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
emerge_config = load_emerge_config(
action=myaction, args=myfiles, opts=myopts)
# Make locale variables from configuration files (make.defaults, make.conf) affect locale of emerge process.
for locale_var_name in ("LANGUAGE", "LC_ALL", "LC_ADDRESS", "LC_COLLATE", "LC_CTYPE",
"LC_IDENTIFICATION", "LC_MEASUREMENT", "LC_MESSAGES", "LC_MONETARY",
"LC_NAME", "LC_NUMERIC", "LC_PAPER", "LC_TELEPHONE", "LC_TIME", "LANG"):
locale_var_value = emerge_config.running_config.settings.get(locale_var_name)
if locale_var_value is not None:
os.environ.setdefault(locale_var_name, locale_var_value)
try:
locale.setlocale(locale.LC_ALL, "")
except locale.Error as e:
writemsg_level("setlocale: %s\n" % e, level=logging.WARN)
tmpcmdline = []
if "--ignore-default-opts" not in myopts:
tmpcmdline.extend(portage.util.shlex_split(
emerge_config.target_config.settings.get(
"EMERGE_DEFAULT_OPTS", "")))
tmpcmdline.extend(args)
emerge_config.action, emerge_config.opts, emerge_config.args = \
parse_opts(tmpcmdline)
try:
return run_action(emerge_config)
finally:
# Call destructors for our portdbapi instances.
for x in emerge_config.trees.values():
if "porttree" in x.lazy_items:
continue
x["porttree"].dbapi.close_caches()
def _get_legacy_global(name):
constructed = portage._legacy_globals_constructed
if name in constructed:
return getattr(portage, name)
if name == 'portdb':
portage.portdb = portage.db[portage.root]["porttree"].dbapi
constructed.add(name)
return getattr(portage, name)
elif name in ('mtimedb', 'mtimedbfile'):
portage.mtimedbfile = os.path.join(portage.root, CACHE_PATH, "mtimedb")
constructed.add('mtimedbfile')
portage.mtimedb = portage.MtimeDB(portage.mtimedbfile)
constructed.add('mtimedb')
return getattr(portage, name)
# Portage needs to ensure a sane umask for the files it creates.
os.umask(0o22)
kwargs = {}
for k, envvar in (("config_root", "PORTAGE_CONFIGROOT"), ("target_root",
"ROOT")):
kwargs[k] = os.environ.get(envvar)
portage._initializing_globals = True
portage.db = portage.create_trees(**kwargs)
constructed.add('db')
del portage._initializing_globals
settings = portage.db["/"]["vartree"].settings
for root in portage.db:
if root != "/":
settings = portage.db[root]["vartree"].settings
break
portage.output._init(config_root=settings['PORTAGE_CONFIGROOT'])
portage.settings = settings
constructed.add('settings')
portage.root = root
constructed.add('root')
# COMPATIBILITY
# These attributes should not be used within
# Portage under any circumstances.
portage.archlist = settings.archlist()
constructed.add('archlist')
portage.features = settings.features
constructed.add('features')
portage.groups = settings["ACCEPT_KEYWORDS"].split()
constructed.add('groups')
portage.pkglines = settings.packages
constructed.add('pkglines')
portage.selinux_enabled = settings.selinux_enabled()
constructed.add('selinux_enabled')
portage.thirdpartymirrors = settings.thirdpartymirrors()
constructed.add('thirdpartymirrors')
profiledir = os.path.join(settings["PORTAGE_CONFIGROOT"], PROFILE_PATH)
if not os.path.isdir(profiledir):
profiledir = None
portage.profiledir = profiledir
constructed.add('profiledir')
return getattr(portage, name)
