def setUp(self):
self.gconff = make_temp_file(dedent("""
[Main]
default: global_default
[global_default]
map: echo foo[1-2]
all: echo @foo
list: echo foo
""").encode())
set_std_group_resolver_config(self.gconff.name)
# passed to --groupsconf
self.custf = make_temp_file(dedent("""
[Main]
default: custom
[custom]
map: echo foo[1-2]
all: echo @bar
list: echo bar
""").encode())
def setUp(self):
self.gconff = make_temp_file(dedent("""
[Main]
default: global_default
[global_default]
map: echo example[1-100]
all: echo @foo,@bar,@moo
list: echo foo bar moo
""").encode())
set_std_group_resolver_config(self.gconff.name)
# passed to --groupsconf
self.custf = make_temp_file(dedent("""
[Main]
default: custom
[custom]
map: echo custom[7-42]
all: echo @selene,@artemis
list: echo selene artemis
""").encode())
def setUp(self):
self.gconff = make_temp_file(
dedent("""
[Main]
default: global_default
[global_default]
map: echo foo[1-2]
all: echo @foo
list: echo foo
""").encode())
set_std_group_resolver_config(self.gconff.name)
# passed to --groupsconf
self.custf = make_temp_file(
dedent("""
[Main]
default: custom
[custom]
map: echo foo[1-2]
all: echo @bar
list: echo bar
""").encode())
def setUp(self):
self.gconff = make_temp_file(
dedent("""
[Main]
default: global_default
[global_default]
map: echo example[1-100]
all: echo @foo,@bar,@moo
list: echo foo bar moo
""").encode())
set_std_group_resolver_config(self.gconff.name)
# passed to --groupsconf
self.custf = make_temp_file(
dedent("""
[Main]
default: custom
[custom]
map: echo custom[7-42]
all: echo @selene,@artemis
list: echo selene artemis
""").encode())
def clubak():
"""script subroutine"""
# Argument management
parser = OptionParser("%prog [options]")
parser.install_groupsconf_option()
parser.install_display_options(verbose_options=True,
separator_option=True,
dshbak_compat=True,
msgtree_mode=True)
options = parser.parse_args()[0]
set_std_group_resolver_config(options.groupsconf)
if options.interpret_keys == THREE_CHOICES[-1]: # auto?
enable_nodeset_key = None # AUTO
else:
enable_nodeset_key = (options.interpret_keys == THREE_CHOICES[1])
# Create new message tree
if options.trace_mode:
tree_mode = MODE_TRACE
else:
tree_mode = MODE_DEFER
tree = MsgTree(mode=tree_mode)
fast_mode = options.fast_mode
if fast_mode:
if tree_mode != MODE_DEFER or options.line_mode:
parser.error("incompatible tree options")
preload_msgs = {}
separator = options.separator.encode()
# Feed the tree from standard input lines
for line in sys_stdin():
try:
linestripped = line.rstrip(b'\r\n')
if options.verbose or options.debug:
sys_stdout().write(b'INPUT ' + linestripped + b'\n')
key, content = linestripped.split(separator, 1)
key = key.strip().decode() # NodeSet requires encoded string
if not key:
raise ValueError("no node found")
if enable_nodeset_key is False: # interpret-keys=never?
keyset = [key]
else:
try:
keyset = NodeSet(key)
except NodeSetParseError:
if enable_nodeset_key: # interpret-keys=always?
raise
enable_nodeset_key = False # auto => switch off
keyset = [key]
if fast_mode:
for node in keyset:
preload_msgs.setdefault(node, []).append(content)
else:
for node in keyset:
tree.add(node, content)
except ValueError as ex:
raise ValueError('%s: "%s"' % (ex, linestripped.decode()))
if fast_mode:
# Messages per node have been aggregated, now add to tree one
# full msg per node
for key, wholemsg in preload_msgs.items():
tree.add(key, b'\n'.join(wholemsg))
# Display results
try:
disp = Display(options)
except ValueError as exc:
parser.error("option mismatch (%s)" % exc)
return
if options.debug:
std_group_resolver().set_verbosity(1)
print("clubak: line_mode=%s gather=%s tree_depth=%d" %
(bool(options.line_mode), bool(disp.gather), tree._depth()),
file=sys.stderr)
display(tree, disp, disp.gather or disp.regroup, \
options.trace_mode, enable_nodeset_key is not False)
def nodeset():
"""script subroutine"""
class_set = NodeSet
usage = "%prog [COMMAND] [OPTIONS] [ns1 [-ixX] ns2|...]"
parser = OptionParser(usage)
parser.install_groupsconf_option()
parser.install_nodeset_commands()
parser.install_nodeset_operations()
parser.install_nodeset_options()
(options, args) = parser.parse_args()
set_std_group_resolver_config(options.groupsconf)
group_resolver = std_group_resolver()
if options.debug:
logging.basicConfig(level=logging.DEBUG)
# Check for command presence
cmdcount = int(options.count) + int(options.expand) + \
int(options.fold) + int(bool(options.list)) + \
int(bool(options.listall)) + int(options.regroup) + \
int(options.groupsources)
if not cmdcount:
parser.error("No command specified.")
elif cmdcount > 1:
parser.error("Multiple commands not allowed.")
if options.rangeset:
class_set = RangeSet
if options.all or options.regroup:
if class_set != NodeSet:
parser.error("-a/-r only supported in NodeSet mode")
if options.maxsplit is not None and options.contiguous:
parser.error("incompatible splitting options (split, contiguous)")
if options.maxsplit is None:
options.maxsplit = 1
if options.axis and (not options.fold or options.rangeset):
parser.error("--axis option is only supported when folding nodeset")
if options.groupsource and not options.quiet and class_set == RangeSet:
print("WARNING: option group source \"%s\" ignored"
% options.groupsource, file=sys.stderr)
# We want -s <groupsource> to act as a substition of default groupsource
# (ie. it's not necessary to prefix group names by this group source).
if options.groupsource:
group_resolver.default_source_name = options.groupsource
# The groupsources command simply lists group sources.
if options.groupsources:
if options.quiet:
dispdefault = "" # don't show (default) if quiet is set
else:
dispdefault = " (default)"
for src in group_resolver.sources():
print("%s%s" % (src, dispdefault))
dispdefault = ""
return
autostep = options.autostep
# Do not use autostep for computation when a percentage or the special
# value 'auto' is specified. Real autostep value is set post-process.
if isinstance(autostep, float) or autostep == 'auto':
autostep = None
# Instantiate RangeSet or NodeSet object
xset = class_set(autostep=autostep)
if options.all:
# Include all nodes from external node groups support.
xset.update(NodeSet.fromall()) # uses default_source when set
if not args and not options.all and not (options.list or options.listall):
# No need to specify '-' to read stdin in these cases
process_stdin(xset.update, xset.__class__, autostep)
if not xset and (options.and_nodes or options.sub_nodes or
options.xor_nodes) and not options.quiet:
print('WARNING: empty left operand for set operation', file=sys.stderr)
# Apply first operations (before first non-option)
for nodes in options.and_nodes:
if nodes == '-':
process_stdin(xset.intersection_update, xset.__class__, autostep)
else:
xset.intersection_update(class_set(nodes, autostep=autostep))
for nodes in options.sub_nodes:
if nodes == '-':
process_stdin(xset.difference_update, xset.__class__, autostep)
else:
xset.difference_update(class_set(nodes, autostep=autostep))
for nodes in options.xor_nodes:
if nodes == '-':
process_stdin(xset.symmetric_difference_update, xset.__class__,
autostep)
else:
xset.symmetric_difference_update(class_set(nodes,
autostep=autostep))
# Finish xset computing from args
compute_nodeset(xset, args, autostep)
# The list command has a special handling
if options.list > 0 or options.listall > 0:
return command_list(options, xset, group_resolver)
# Interpret special characters (may raise SyntaxError)
separator = eval('\'\'\'%s\'\'\'' % options.separator,
{"__builtins__":None}, {})
if options.slice_rangeset:
_xset = class_set()
for sli in RangeSet(options.slice_rangeset).slices():
_xset.update(xset[sli])
xset = _xset
if options.autostep == 'auto':
# Simple implementation of --autostep=auto
# if we have at least 3 nodes, all index should be foldable as a-b/n
xset.autostep = max(3, len(xset))
elif isinstance(options.autostep, float):
# at least % of nodes should be foldable as a-b/n
autofactor = float(options.autostep)
xset.autostep = int(math.ceil(float(len(xset)) * autofactor))
# user-specified nD-nodeset fold axis
if options.axis:
if not options.axis.startswith('-'):
# axis are 1-indexed in nodeset CLI (0 ignored)
xset.fold_axis = tuple(x-1 for x in RangeSet(options.axis) if x > 0)
else:
# negative axis index (only single number supported)
xset.fold_axis = [int(options.axis)]
if options.pick and options.pick < len(xset):
# convert to string for sample as nsiter() is slower for big
# nodesets; and we assume options.pick will remain small-ish
keep = random.sample(list(xset), options.pick)
# explicit class_set creation and str() conversion for RangeSet
keep = class_set(','.join([str(x) for x in keep]))
xset.intersection_update(keep)
fmt = options.output_format # default to '%s'
# Display result according to command choice
if options.expand:
xsubres = lambda x: separator.join((fmt % s for s in x.striter()))
elif options.fold:
# Special case when folding using NodeSet and format is set (#277)
if class_set is NodeSet and fmt != '%s':
# Create a new set after format has been applied to each node
xset = class_set._fromlist1((fmt % xnodestr for xnodestr in xset),
autostep=xset.autostep)
xsubres = lambda x: x
else:
xsubres = lambda x: fmt % x
elif options.regroup:
xsubres = lambda x: fmt % x.regroup(options.groupsource,
noprefix=options.groupbase)
else:
xsubres = lambda x: fmt % len(x)
if not xset or options.maxsplit <= 1 and not options.contiguous:
print(xsubres(xset))
else:
if options.contiguous:
xiterator = xset.contiguous()
else:
xiterator = xset.split(options.maxsplit)
for xsubset in xiterator:
print(xsubres(xsubset))
def main():
"""clush script entry point"""
sys.excepthook = clush_excepthook
#
# Argument management
#
usage = "%prog [options] command"
parser = OptionParser(usage)
parser.add_option("-n",
"--nostdin",
action="store_true",
dest="nostdin",
help="don't watch for possible input from stdin")
parser.install_groupsconf_option()
parser.install_clush_config_options()
parser.install_nodes_options()
parser.install_display_options(verbose_options=True)
parser.install_filecopy_options()
parser.install_connector_options()
(options, args) = parser.parse_args()
set_std_group_resolver_config(options.groupsconf)
#
# Load config file and apply overrides
#
config = ClushConfig(options, options.conf)
# Initialize logging
if config.verbosity >= VERB_DEBUG:
logging.basicConfig(level=logging.DEBUG)
logging.debug("clush: STARTING DEBUG")
else:
logging.basicConfig(level=logging.CRITICAL)
# Should we use ANSI colors for nodes?
if config.color == "auto":
color = sys.stdout.isatty() and (options.gatherall or \
sys.stderr.isatty())
else:
color = config.color == "always"
try:
# Create and configure display object.
display = Display(options, config, color)
except ValueError as exc:
parser.error("option mismatch (%s)" % exc)
if options.groupsource:
# Be sure -a/g -s source work as espected.
std_group_resolver().default_source_name = options.groupsource
# Compute the nodeset and warn for possible use of shell pathname
# expansion (#225)
wnodelist = []
xnodelist = []
if options.nodes:
wnodelist = [NodeSet(nodes) for nodes in options.nodes]
if options.exclude:
xnodelist = [NodeSet(nodes) for nodes in options.exclude]
for (opt, nodelist) in (('w', wnodelist), ('x', xnodelist)):
for nodes in nodelist:
if len(nodes) == 1 and exists(str(nodes)):
display.vprint_err(
VERB_STD, "Warning: using '-%s %s' and "
"local path '%s' exists, was it expanded "
"by the shell?" % (opt, nodes, nodes))
# --hostfile support (#235)
for opt_hostfile in options.hostfile:
try:
fnodeset = NodeSet()
with open(opt_hostfile) as hostfile:
for line in hostfile.read().splitlines():
fnodeset.updaten(nodes for nodes in line.split())
display.vprint_err(
VERB_DEBUG,
"Using nodeset %s from hostfile %s" % (fnodeset, opt_hostfile))
wnodelist.append(fnodeset)
except IOError as exc:
# re-raise as OSError to be properly handled
errno, strerror = exc.args
raise OSError(errno, strerror, exc.filename)
# Instantiate target nodeset from command line and hostfile
nodeset_base = NodeSet.fromlist(wnodelist)
# Instantiate filter nodeset (command line only)
nodeset_exclude = NodeSet.fromlist(xnodelist)
# Specified engine prevails over default engine
DEFAULTS.engine = options.engine
# Do we have nodes group?
task = task_self()
task.set_info("debug", config.verbosity >= VERB_DEBUG)
if config.verbosity == VERB_DEBUG:
std_group_resolver().set_verbosity(1)
if options.nodes_all:
all_nodeset = NodeSet.fromall()
display.vprint(VERB_DEBUG, "Adding nodes from option -a: %s" % \
all_nodeset)
nodeset_base.add(all_nodeset)
if options.group:
grp_nodeset = NodeSet.fromlist(options.group,
resolver=RESOLVER_NOGROUP)
for grp in grp_nodeset:
addingrp = NodeSet("@" + grp)
display.vprint(VERB_DEBUG, \
"Adding nodes from option -g %s: %s" % (grp, addingrp))
nodeset_base.update(addingrp)
if options.exgroup:
grp_nodeset = NodeSet.fromlist(options.exgroup,
resolver=RESOLVER_NOGROUP)
for grp in grp_nodeset:
removingrp = NodeSet("@" + grp)
display.vprint(VERB_DEBUG, \
"Excluding nodes from option -X %s: %s" % (grp, removingrp))
nodeset_exclude.update(removingrp)
# Do we have an exclude list? (-x ...)
nodeset_base.difference_update(nodeset_exclude)
if len(nodeset_base) < 1:
parser.error('No node to run on.')
if options.pick and options.pick < len(nodeset_base):
# convert to string for sample as nsiter() is slower for big
# nodesets; and we assume options.pick will remain small-ish
keep = random.sample(list(nodeset_base), options.pick)
nodeset_base.intersection_update(','.join(keep))
if config.verbosity >= VERB_VERB:
msg = "Picked random nodes: %s" % nodeset_base
print(Display.COLOR_RESULT_FMT % msg)
# Set open files limit.
set_fdlimit(config.fd_max, display)
#
# Task management
#
# check for clush interactive mode
interactive = not len(args) and \
not (options.copy or options.rcopy)
# check for foreground ttys presence (input)
stdin_isafgtty = sys.stdin.isatty() and \
os.tcgetpgrp(sys.stdin.fileno()) == os.getpgrp()
# check for special condition (empty command and stdin not a tty)
if interactive and not stdin_isafgtty:
# looks like interactive but stdin is not a tty:
# switch to non-interactive + disable ssh pseudo-tty
interactive = False
# SSH: disable pseudo-tty allocation (-T)
ssh_options = config.ssh_options or ''
ssh_options += ' -T'
config._set_main("ssh_options", ssh_options)
if options.nostdin and interactive:
parser.error("illegal option `--nostdin' in that case")
# Force user_interaction if Clush._f_user_interaction for test purposes
user_interaction = hasattr(sys.modules[__name__], '_f_user_interaction')
if not options.nostdin:
# Try user interaction: check for foreground ttys presence (ouput)
stdout_isafgtty = sys.stdout.isatty() and \
os.tcgetpgrp(sys.stdout.fileno()) == os.getpgrp()
user_interaction |= stdin_isafgtty and stdout_isafgtty
display.vprint(VERB_DEBUG, "User interaction: %s" % user_interaction)
if user_interaction:
# Standard input is a terminal and we want to perform some user
# interactions in the main thread (using blocking calls), so
# we run cluster commands in a new ClusterShell Task (a new
# thread is created).
task = Task()
# else: perform everything in the main thread
# Handle special signal only when user_interaction is set
task.set_default("USER_handle_SIGUSR1", user_interaction)
task.excepthook = sys.excepthook
task.set_default("USER_stdin_worker", not (sys.stdin.isatty() or \
options.nostdin or \
user_interaction))
display.vprint(VERB_DEBUG, "Create STDIN worker: %s" % \
task.default("USER_stdin_worker"))
task.set_info("debug", config.verbosity >= VERB_DEBUG)
task.set_info("fanout", config.fanout)
if options.worker:
try:
if options.remote == 'no':
task.set_default('local_worker',
_load_workerclass(options.worker))
else:
task.set_default('distant_worker',
_load_workerclass(options.worker))
except (ImportError, AttributeError):
msg = "ERROR: Could not load worker '%s'" % options.worker
display.vprint_err(VERB_QUIET, msg)
clush_exit(1, task)
if options.topofile or task._default_tree_is_enabled():
if options.topofile:
task.load_topology(options.topofile)
if config.verbosity >= VERB_VERB:
roots = len(task.topology.root.nodeset)
gws = task.topology.inner_node_count() - roots
msg = "enabling tree topology (%d gateways)" % gws
print("clush: %s" % msg, file=sys.stderr)
if options.grooming_delay:
if config.verbosity >= VERB_VERB:
msg = Display.COLOR_RESULT_FMT % ("Grooming delay: %f" %
options.grooming_delay)
print(msg, file=sys.stderr)
task.set_info("grooming_delay", options.grooming_delay)
elif options.rcopy:
# By default, --rcopy should inhibit grooming
task.set_info("grooming_delay", 0)
if config.ssh_user:
task.set_info("ssh_user", config.ssh_user)
if config.ssh_path:
task.set_info("ssh_path", config.ssh_path)
if config.ssh_options:
task.set_info("ssh_options", config.ssh_options)
if config.scp_path:
task.set_info("scp_path", config.scp_path)
if config.scp_options:
task.set_info("scp_options", config.scp_options)
if config.rsh_path:
task.set_info("rsh_path", config.rsh_path)
if config.rcp_path:
task.set_info("rcp_path", config.rcp_path)
if config.rsh_options:
task.set_info("rsh_options", config.rsh_options)
# Set detailed timeout values
task.set_info("connect_timeout", config.connect_timeout)
task.set_info("command_timeout", config.command_timeout)
# Enable stdout/stderr separation
task.set_default("stderr", not options.gatherall)
# Prevent reading from stdin?
task.set_default("stdin", not options.nostdin)
# Disable MsgTree buffering if not gathering outputs
task.set_default("stdout_msgtree", display.gather or display.line_mode)
# Always disable stderr MsgTree buffering
task.set_default("stderr_msgtree", False)
# Set timeout at worker level when command_timeout is defined.
if config.command_timeout > 0:
timeout = config.command_timeout
else:
timeout = -1
# Configure task custom status
task.set_default("USER_interactive", interactive)
task.set_default("USER_running", False)
if (options.copy or options.rcopy) and not args:
parser.error("--[r]copy option requires at least one argument")
if options.copy:
if not options.dest_path:
# append '/' to clearly indicate a directory for tree mode
options.dest_path = join(dirname(abspath(args[0])), '')
op = "copy sources=%s dest=%s" % (args, options.dest_path)
elif options.rcopy:
if not options.dest_path:
options.dest_path = dirname(abspath(args[0]))
op = "rcopy sources=%s dest=%s" % (args, options.dest_path)
else:
op = "command=\"%s\"" % ' '.join(args)
# print debug values (fanout value is get from the config object
# and not task itself as set_info() is an asynchronous call.
display.vprint(VERB_DEBUG, "clush: nodeset=%s fanout=%d [timeout " \
"conn=%.1f cmd=%.1f] %s" % (nodeset_base, config.fanout,
config.connect_timeout,
config.command_timeout,
op))
if not task.default("USER_interactive"):
if display.verbosity >= VERB_DEBUG and task.topology:
print(Display.COLOR_RESULT_FMT % '-' * 15)
print(Display.COLOR_RESULT_FMT % task.topology, end='')
print(Display.COLOR_RESULT_FMT % '-' * 15)
if options.copy:
run_copy(task, args, options.dest_path, nodeset_base, timeout,
options.preserve_flag, display)
elif options.rcopy:
run_rcopy(task, args, options.dest_path, nodeset_base, timeout,
options.preserve_flag, display)
else:
run_command(task, ' '.join(args), nodeset_base, timeout, display,
options.remote != 'no')
if user_interaction:
ttyloop(task, nodeset_base, timeout, display, options.remote != 'no')
elif task.default("USER_interactive"):
display.vprint_err(VERB_QUIET, \
"ERROR: interactive mode requires a tty")
clush_exit(1, task)
rc = 0
if options.maxrc:
# Instead of clush return code, return commands retcode
rc = task.max_retcode()
if task.num_timeout() > 0:
rc = 255
clush_exit(rc, task)
def main():
"""clush script entry point"""
sys.excepthook = clush_excepthook
#
# Argument management
#
usage = "%prog [options] command"
parser = OptionParser(usage)
parser.add_option("-n", "--nostdin", action="store_true", dest="nostdin",
help="don't watch for possible input from stdin")
parser.install_groupsconf_option()
parser.install_clush_config_options()
parser.install_nodes_options()
parser.install_display_options(verbose_options=True)
parser.install_filecopy_options()
parser.install_connector_options()
(options, args) = parser.parse_args()
set_std_group_resolver_config(options.groupsconf)
#
# Load config file and apply overrides
#
config = ClushConfig(options, options.conf)
# Initialize logging
if config.verbosity >= VERB_DEBUG:
logging.basicConfig(level=logging.DEBUG)
logging.debug("clush: STARTING DEBUG")
else:
logging.basicConfig(level=logging.CRITICAL)
# Should we use ANSI colors for nodes?
if config.color == "auto":
color = sys.stdout.isatty() and (options.gatherall or \
sys.stderr.isatty())
else:
color = config.color == "always"
try:
# Create and configure display object.
display = Display(options, config, color)
except ValueError as exc:
parser.error("option mismatch (%s)" % exc)
if options.groupsource:
# Be sure -a/g -s source work as espected.
std_group_resolver().default_source_name = options.groupsource
# Compute the nodeset and warn for possible use of shell pathname
# expansion (#225)
wnodelist = []
xnodelist = []
if options.nodes:
wnodelist = [NodeSet(nodes) for nodes in options.nodes]
if options.exclude:
xnodelist = [NodeSet(nodes) for nodes in options.exclude]
for (opt, nodelist) in (('w', wnodelist), ('x', xnodelist)):
for nodes in nodelist:
if len(nodes) == 1 and exists(str(nodes)):
display.vprint_err(VERB_STD, "Warning: using '-%s %s' and "
"local path '%s' exists, was it expanded "
"by the shell?" % (opt, nodes, nodes))
# --hostfile support (#235)
for opt_hostfile in options.hostfile:
try:
fnodeset = NodeSet()
with open(opt_hostfile) as hostfile:
for line in hostfile.read().splitlines():
fnodeset.updaten(nodes for nodes in line.split())
display.vprint_err(VERB_DEBUG,
"Using nodeset %s from hostfile %s"
% (fnodeset, opt_hostfile))
wnodelist.append(fnodeset)
except IOError as exc:
# re-raise as OSError to be properly handled
errno, strerror = exc.args
raise OSError(errno, strerror, exc.filename)
# Instantiate target nodeset from command line and hostfile
nodeset_base = NodeSet.fromlist(wnodelist)
# Instantiate filter nodeset (command line only)
nodeset_exclude = NodeSet.fromlist(xnodelist)
# Specified engine prevails over default engine
DEFAULTS.engine = options.engine
# Do we have nodes group?
task = task_self()
task.set_info("debug", config.verbosity >= VERB_DEBUG)
if config.verbosity == VERB_DEBUG:
std_group_resolver().set_verbosity(1)
if options.nodes_all:
all_nodeset = NodeSet.fromall()
display.vprint(VERB_DEBUG, "Adding nodes from option -a: %s" % \
all_nodeset)
nodeset_base.add(all_nodeset)
if options.group:
grp_nodeset = NodeSet.fromlist(options.group,
resolver=RESOLVER_NOGROUP)
for grp in grp_nodeset:
addingrp = NodeSet("@" + grp)
display.vprint(VERB_DEBUG, \
"Adding nodes from option -g %s: %s" % (grp, addingrp))
nodeset_base.update(addingrp)
if options.exgroup:
grp_nodeset = NodeSet.fromlist(options.exgroup,
resolver=RESOLVER_NOGROUP)
for grp in grp_nodeset:
removingrp = NodeSet("@" + grp)
display.vprint(VERB_DEBUG, \
"Excluding nodes from option -X %s: %s" % (grp, removingrp))
nodeset_exclude.update(removingrp)
# Do we have an exclude list? (-x ...)
nodeset_base.difference_update(nodeset_exclude)
if len(nodeset_base) < 1:
parser.error('No node to run on.')
if options.pick and options.pick < len(nodeset_base):
# convert to string for sample as nsiter() is slower for big
# nodesets; and we assume options.pick will remain small-ish
keep = random.sample(list(nodeset_base), options.pick)
nodeset_base.intersection_update(','.join(keep))
if config.verbosity >= VERB_VERB:
msg = "Picked random nodes: %s" % nodeset_base
print(Display.COLOR_RESULT_FMT % msg)
# Set open files limit.
set_fdlimit(config.fd_max, display)
#
# Task management
#
# check for clush interactive mode
interactive = not len(args) and \
not (options.copy or options.rcopy)
# check for foreground ttys presence (input)
stdin_isafgtty = sys.stdin.isatty() and \
os.tcgetpgrp(sys.stdin.fileno()) == os.getpgrp()
# check for special condition (empty command and stdin not a tty)
if interactive and not stdin_isafgtty:
# looks like interactive but stdin is not a tty:
# switch to non-interactive + disable ssh pseudo-tty
interactive = False
# SSH: disable pseudo-tty allocation (-T)
ssh_options = config.ssh_options or ''
ssh_options += ' -T'
config._set_main("ssh_options", ssh_options)
if options.nostdin and interactive:
parser.error("illegal option `--nostdin' in that case")
# Force user_interaction if Clush._f_user_interaction for test purposes
user_interaction = hasattr(sys.modules[__name__], '_f_user_interaction')
if not options.nostdin:
# Try user interaction: check for foreground ttys presence (ouput)
stdout_isafgtty = sys.stdout.isatty() and \
os.tcgetpgrp(sys.stdout.fileno()) == os.getpgrp()
user_interaction |= stdin_isafgtty and stdout_isafgtty
display.vprint(VERB_DEBUG, "User interaction: %s" % user_interaction)
if user_interaction:
# Standard input is a terminal and we want to perform some user
# interactions in the main thread (using blocking calls), so
# we run cluster commands in a new ClusterShell Task (a new
# thread is created).
task = Task()
# else: perform everything in the main thread
# Handle special signal only when user_interaction is set
task.set_default("USER_handle_SIGUSR1", user_interaction)
task.excepthook = sys.excepthook
task.set_default("USER_stdin_worker", not (sys.stdin.isatty() or \
options.nostdin or \
user_interaction))
display.vprint(VERB_DEBUG, "Create STDIN worker: %s" % \
task.default("USER_stdin_worker"))
task.set_info("debug", config.verbosity >= VERB_DEBUG)
task.set_info("fanout", config.fanout)
if options.worker:
try:
if options.remote == 'no':
task.set_default('local_worker',
_load_workerclass(options.worker))
else:
task.set_default('distant_worker',
_load_workerclass(options.worker))
except (ImportError, AttributeError):
msg = "ERROR: Could not load worker '%s'" % options.worker
display.vprint_err(VERB_QUIET, msg)
clush_exit(1, task)
if options.topofile or task._default_tree_is_enabled():
if options.topofile:
task.load_topology(options.topofile)
if config.verbosity >= VERB_VERB:
roots = len(task.topology.root.nodeset)
gws = task.topology.inner_node_count() - roots
msg = "enabling tree topology (%d gateways)" % gws
print("clush: %s" % msg, file=sys.stderr)
if options.grooming_delay:
if config.verbosity >= VERB_VERB:
msg = Display.COLOR_RESULT_FMT % ("Grooming delay: %f" %
options.grooming_delay)
print(msg, file=sys.stderr)
task.set_info("grooming_delay", options.grooming_delay)
elif options.rcopy:
# By default, --rcopy should inhibit grooming
task.set_info("grooming_delay", 0)
if config.ssh_user:
task.set_info("ssh_user", config.ssh_user)
if config.ssh_path:
task.set_info("ssh_path", config.ssh_path)
if config.ssh_options:
task.set_info("ssh_options", config.ssh_options)
if config.scp_path:
task.set_info("scp_path", config.scp_path)
if config.scp_options:
task.set_info("scp_options", config.scp_options)
if config.rsh_path:
task.set_info("rsh_path", config.rsh_path)
if config.rcp_path:
task.set_info("rcp_path", config.rcp_path)
if config.rsh_options:
task.set_info("rsh_options", config.rsh_options)
# Set detailed timeout values
task.set_info("connect_timeout", config.connect_timeout)
task.set_info("command_timeout", config.command_timeout)
# Enable stdout/stderr separation
task.set_default("stderr", not options.gatherall)
# Prevent reading from stdin?
task.set_default("stdin", not options.nostdin)
# Disable MsgTree buffering if not gathering outputs
task.set_default("stdout_msgtree", display.gather or display.line_mode)
# Always disable stderr MsgTree buffering
task.set_default("stderr_msgtree", False)
# Set timeout at worker level when command_timeout is defined.
if config.command_timeout > 0:
timeout = config.command_timeout
else:
timeout = -1
# Configure task custom status
task.set_default("USER_interactive", interactive)
task.set_default("USER_running", False)
if (options.copy or options.rcopy) and not args:
parser.error("--[r]copy option requires at least one argument")
if options.copy:
if not options.dest_path:
# append '/' to clearly indicate a directory for tree mode
options.dest_path = join(dirname(abspath(args[0])), '')
op = "copy sources=%s dest=%s" % (args, options.dest_path)
elif options.rcopy:
if not options.dest_path:
options.dest_path = dirname(abspath(args[0]))
op = "rcopy sources=%s dest=%s" % (args, options.dest_path)
else:
op = "command=\"%s\"" % ' '.join(args)
# print debug values (fanout value is get from the config object
# and not task itself as set_info() is an asynchronous call.
display.vprint(VERB_DEBUG, "clush: nodeset=%s fanout=%d [timeout " \
"conn=%.1f cmd=%.1f] %s" % (nodeset_base, config.fanout,
config.connect_timeout,
config.command_timeout,
op))
if not task.default("USER_interactive"):
if display.verbosity >= VERB_DEBUG and task.topology:
print(Display.COLOR_RESULT_FMT % '-' * 15)
print(Display.COLOR_RESULT_FMT % task.topology, end='')
print(Display.COLOR_RESULT_FMT % '-' * 15)
if options.copy:
run_copy(task, args, options.dest_path, nodeset_base, timeout,
options.preserve_flag, display)
elif options.rcopy:
run_rcopy(task, args, options.dest_path, nodeset_base, timeout,
options.preserve_flag, display)
else:
run_command(task, ' '.join(args), nodeset_base, timeout, display,
options.remote != 'no')
if user_interaction:
ttyloop(task, nodeset_base, timeout, display, options.remote != 'no')
elif task.default("USER_interactive"):
display.vprint_err(VERB_QUIET, \
"ERROR: interactive mode requires a tty")
clush_exit(1, task)
rc = 0
if options.maxrc:
# Instead of clush return code, return commands retcode
rc = task.max_retcode()
if task.num_timeout() > 0:
rc = 255
clush_exit(rc, task)
def clubak():
"""script subroutine"""
# Argument management
parser = OptionParser("%prog [options]")
parser.install_groupsconf_option()
parser.install_display_options(verbose_options=True,
separator_option=True,
dshbak_compat=True,
msgtree_mode=True)
options = parser.parse_args()[0]
set_std_group_resolver_config(options.groupsconf)
if options.interpret_keys == THREE_CHOICES[-1]: # auto?
enable_nodeset_key = None # AUTO
else:
enable_nodeset_key = (options.interpret_keys == THREE_CHOICES[1])
# Create new message tree
if options.trace_mode:
tree_mode = MODE_TRACE
else:
tree_mode = MODE_DEFER
tree = MsgTree(mode=tree_mode)
fast_mode = options.fast_mode
if fast_mode:
if tree_mode != MODE_DEFER or options.line_mode:
parser.error("incompatible tree options")
preload_msgs = {}
separator = options.separator.encode()
# Feed the tree from standard input lines
for line in sys_stdin():
try:
linestripped = line.rstrip(b'\r\n')
if options.verbose or options.debug:
sys_stdout().write(b'INPUT ' + linestripped + b'\n')
key, content = linestripped.split(separator, 1)
key = key.strip().decode() # NodeSet requires encoded string
if not key:
raise ValueError("no node found")
if enable_nodeset_key is False: # interpret-keys=never?
keyset = [ key ]
else:
try:
keyset = NodeSet(key)
except NodeSetParseError:
if enable_nodeset_key: # interpret-keys=always?
raise
enable_nodeset_key = False # auto => switch off
keyset = [ key ]
if fast_mode:
for node in keyset:
preload_msgs.setdefault(node, []).append(content)
else:
for node in keyset:
tree.add(node, content)
except ValueError as ex:
raise ValueError('%s: "%s"' % (ex, linestripped.decode()))
if fast_mode:
# Messages per node have been aggregated, now add to tree one
# full msg per node
for key, wholemsg in preload_msgs.items():
tree.add(key, b'\n'.join(wholemsg))
# Display results
try:
disp = Display(options)
if options.debug:
std_group_resolver().set_verbosity(1)
print("clubak: line_mode=%s gather=%s tree_depth=%d"
% (bool(options.line_mode), bool(disp.gather), tree._depth()),
file=sys.stderr)
display(tree, disp, disp.gather or disp.regroup, \
options.trace_mode, enable_nodeset_key is not False)
except ValueError as exc:
parser.error("option mismatch (%s)" % exc)
def nodeset():
"""script subroutine"""
class_set = NodeSet
usage = "%prog [COMMAND] [OPTIONS] [ns1 [-ixX] ns2|...]"
parser = OptionParser(usage)
parser.install_groupsconf_option()
parser.install_nodeset_commands()
parser.install_nodeset_operations()
parser.install_nodeset_options()
(options, args) = parser.parse_args()
set_std_group_resolver_config(options.groupsconf)
group_resolver = std_group_resolver()
if options.debug:
logging.basicConfig(level=logging.DEBUG)
# Check for command presence
cmdcount = int(options.count) + int(options.expand) + \
int(options.fold) + int(bool(options.list)) + \
int(bool(options.listall)) + int(options.regroup) + \
int(options.groupsources)
if not cmdcount:
parser.error("No command specified.")
elif cmdcount > 1:
parser.error("Multiple commands not allowed.")
if options.rangeset:
class_set = RangeSet
if options.all or options.regroup:
if class_set != NodeSet:
parser.error("-a/-r only supported in NodeSet mode")
if options.maxsplit is not None and options.contiguous:
parser.error("incompatible splitting options (split, contiguous)")
if options.maxsplit is None:
options.maxsplit = 1
if options.axis and (not options.fold or options.rangeset):
parser.error("--axis option is only supported when folding nodeset")
if options.groupsource and not options.quiet and class_set == RangeSet:
print("WARNING: option group source \"%s\" ignored" %
options.groupsource,
file=sys.stderr)
# We want -s <groupsource> to act as a substition of default groupsource
# (ie. it's not necessary to prefix group names by this group source).
if options.groupsource:
group_resolver.default_source_name = options.groupsource
# The groupsources command simply lists group sources.
if options.groupsources:
if options.quiet:
dispdefault = "" # don't show (default) if quiet is set
else:
dispdefault = " (default)"
for src in group_resolver.sources():
print("%s%s" % (src, dispdefault))
dispdefault = ""
return
autostep = options.autostep
# Do not use autostep for computation when a percentage or the special
# value 'auto' is specified. Real autostep value is set post-process.
if isinstance(autostep, float) or autostep == 'auto':
autostep = None
# Instantiate RangeSet or NodeSet object
xset = class_set(autostep=autostep)
if options.all:
# Include all nodes from external node groups support.
xset.update(NodeSet.fromall()) # uses default_source when set
if not args and not options.all and not (options.list or options.listall):
# No need to specify '-' to read stdin in these cases
process_stdin(xset.update, xset.__class__, autostep)
if not xset and (options.and_nodes or options.sub_nodes
or options.xor_nodes) and not options.quiet:
print('WARNING: empty left operand for set operation', file=sys.stderr)
# Apply first operations (before first non-option)
for nodes in options.and_nodes:
if nodes == '-':
process_stdin(xset.intersection_update, xset.__class__, autostep)
else:
xset.intersection_update(class_set(nodes, autostep=autostep))
for nodes in options.sub_nodes:
if nodes == '-':
process_stdin(xset.difference_update, xset.__class__, autostep)
else:
xset.difference_update(class_set(nodes, autostep=autostep))
for nodes in options.xor_nodes:
if nodes == '-':
process_stdin(xset.symmetric_difference_update, xset.__class__,
autostep)
else:
xset.symmetric_difference_update(
class_set(nodes, autostep=autostep))
# Finish xset computing from args
compute_nodeset(xset, args, autostep)
# The list command has a special handling
if options.list > 0 or options.listall > 0:
return command_list(options, xset, group_resolver)
# Interpret special characters (may raise SyntaxError)
separator = eval('\'\'\'%s\'\'\'' % options.separator,
{"__builtins__": None}, {})
if options.slice_rangeset:
_xset = class_set()
for sli in RangeSet(options.slice_rangeset).slices():
_xset.update(xset[sli])
xset = _xset
if options.autostep == 'auto':
# Simple implementation of --autostep=auto
# if we have at least 3 nodes, all index should be foldable as a-b/n
xset.autostep = max(3, len(xset))
elif isinstance(options.autostep, float):
# at least % of nodes should be foldable as a-b/n
autofactor = float(options.autostep)
xset.autostep = int(math.ceil(float(len(xset)) * autofactor))
# user-specified nD-nodeset fold axis
if options.axis:
if not options.axis.startswith('-'):
# axis are 1-indexed in nodeset CLI (0 ignored)
xset.fold_axis = tuple(x - 1 for x in RangeSet(options.axis)
if x > 0)
else:
# negative axis index (only single number supported)
xset.fold_axis = [int(options.axis)]
if options.pick and options.pick < len(xset):
# convert to string for sample as nsiter() is slower for big
# nodesets; and we assume options.pick will remain small-ish
keep = random.sample(list(xset), options.pick)
# explicit class_set creation and str() conversion for RangeSet
keep = class_set(','.join([str(x) for x in keep]))
xset.intersection_update(keep)
fmt = options.output_format # default to '%s'
# Display result according to command choice
if options.expand:
xsubres = lambda x: separator.join((fmt % s for s in x.striter()))
elif options.fold:
# Special case when folding using NodeSet and format is set (#277)
if class_set is NodeSet and fmt != '%s':
# Create a new set after format has been applied to each node
xset = class_set._fromlist1((fmt % xnodestr for xnodestr in xset),
autostep=xset.autostep)
xsubres = lambda x: x
else:
xsubres = lambda x: fmt % x
elif options.regroup:
xsubres = lambda x: fmt % x.regroup(options.groupsource,
noprefix=options.groupbase)
else:
xsubres = lambda x: fmt % len(x)
if not xset or options.maxsplit <= 1 and not options.contiguous:
print(xsubres(xset))
else:
if options.contiguous:
xiterator = xset.contiguous()
else:
xiterator = xset.split(options.maxsplit)
for xsubset in xiterator:
print(xsubres(xsubset))