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#!/usr/bin/python -i
'''This tool loads the Bcfg2 core into an interactive debugger'''
__revision__ = '$Revision$'
import logging, lxml.etree, sys, time, Bcfg2.Logging, Bcfg2.Server.Core
def print_tabular(rows):
'''print data in tabular format'''
cmax = tuple([max([len(str(row[index])) for row in rows]) + 1 for index in xrange(len(rows[0]))])
fstring = (" %%-%ss |" * len(cmax)) % cmax
fstring = ('|'.join([" %%-%ss "] * len(cmax))) % cmax
print fstring % rows[0]
print (sum(cmax) + (len(cmax) * 2) + (len(cmax) - 1)) * '='
for row in rows[1:]:
print fstring % row
def get_input():
'''read commands from stdin'''
try:
return raw_input('> ').split(" ")
except:
return ['']
def do_build(cmd, core):
'''build client configuration'''
if len(cmd) == 3:
output = open(cmd[2], 'w')
output.write(lxml.etree.tostring(core.BuildConfiguration(cmd[1])))
output.close()
else:
print 'Usage: build <hostname> <output file>'
def do_bundles(cmd, core):
'''print out group/bundle info'''
data = [('Group', 'Bundles')]
groups = core.metadata.groups.keys()
groups.sort()
for group in groups:
data.append((group, ','.join(core.metadata.groups[group][0])))
print_tabular(data)
def do_clients(cmd, core):
'''print out client info'''
data = [('Client', 'Profile')]
clist = core.metadata.clients.keys()
clist.sort()
for client in clist:
data.append((client, core.metadata.clients[client]))
print_tabular(data)
def do_help(cmd, core):
'''print out usage info'''
print 'Commands:'
print 'build <hostname> <filename> - build config for hostname, writing to filename'
print 'bundles - print out group/bundle information'
print 'clients - print out client/profile information'
print 'debug - shell out to native python interpreter'
print 'generators - list current versions of generators'
print 'groups - list groups'
print 'help - print this text'
print 'mappings <type*> <name*>- print generator mappings for optional type and name'
print 'quit'
print 'update - process pending file events'
print 'version - print version of this tool'
def do_generators(cmd, core):
'''print out generator info'''
for generator in core.generators:
print generator.__version__
def do_groups(cmd, core):
'''print out group info'''
data = [("Groups", "Profile", "Category", "Contains")]
grouplist = core.metadata.groups.keys()
grouplist.sort()
for group in grouplist:
if group in core.metadata.profiles:
prof = 'yes'
else:
prof = 'no'
if core.metadata.categories.has_key(group):
cat = core.metadata.categories[group]
else:
cat = ''
gdata = [grp for grp in core.metadata.groups[group][1]]
gdata.remove(group)
data.append((group, prof, cat, ','.join(gdata)))
print_tabular(data)
def do_mappings(cmd, core):
'''print out mapping info'''
# dump all mappings unless type specified
data = [('Plugin', 'Type', 'Name')]
for generator in core.generators:
if len(cmd) == 1:
etypes = generator.Entries.keys()
elif len(cmd) > 1:
etypes = [cmd[1]]
if len(cmd) == 3:
interested = [(etype, [cmd[2]]) for etype in etypes]
else:
interested = [(etype, generator.Entries[etype].keys()) for etype in etypes
if generator.Entries.has_key(etype)]
if [etype for (etype, names) in interested
if generator.Entries.has_key(etype) and [name for name in names
if generator.Entries[etype].has_key(name)]]:
for (etype, names) in interested:
for name in names:
if generator.Entries.has_key(etype) and generator.Entries[etype].has_key(name):
data.append((generator.__name__, etype, name))
print_tabular(data)
def do_quit(cmd, core):
'''exit program'''
raise SystemExit, 0
def do_update(cmd, core):
'''Process pending fs events'''
core.fam.Service()
def do_version(cmd, core):
'''print out code version'''
print __revision__
if __name__ == '__main__':
Bcfg2.Logging.setup_logging(to_syslog=False)
logger = logging.getLogger('bcfg2-info')
dispatch = {'build': do_build, 'bundles': do_bundles, 'clients': do_clients,
'generators': do_generators, 'groups': do_groups,
'help': do_help, 'mappings': do_mappings, 'quit': do_quit,
'update': do_update, 'version': do_version}
if '-c' in sys.argv:
cfile = sys.argv[-1]
else:
cfile = '/etc/bcfg2.conf'
try:
bcore = Bcfg2.Server.Core.Core({}, cfile)
except Bcfg2.Server.Core.CoreInitError, msg:
print "Core load failed because %s" % msg
raise SystemExit, 1
for i in range(25):
bcore.fam.Service()
time.sleep(0.5)
ucmd = get_input()
while True:
if ucmd[0] == 'debug':
break
else:
if dispatch.has_key(ucmd[0]):
try:
dispatch[ucmd[0]](ucmd, bcore)
except SystemExit, code:
raise SystemExit, code
except:
logger.error("command failure", exc_info=1)
else:
print "Unknown command %s" % ucmd[0]
ucmd = get_input()
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