Refactor of bcfg2-admin (all modes moved to discrete modules in Bcfg2.Server.Admin

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@4125 ce84e21b-d406-0410-9b95-82705330c041

1 files changed, 31 insertions, 612 deletions

diff --git a/src/sbin/bcfg2-admin b/src/sbin/bcfg2-admin
index dab67bf96..d7ad02d3a 100755
--- a/src/sbin/bcfg2-admin
+++ b/src/sbin/bcfg2-admin
@@ -2,588 +2,27 @@
 '''bcfg2-admin is a script that helps to administrate a bcfg2 deployment'''
 
 import getopt, difflib, logging, lxml.etree, os, popen2, re, socket, sys, ConfigParser
-import Bcfg2.Server.Core, Bcfg2.Logging, Bcfg2.tlslite.api
-import binascii, time
+import Bcfg2.Server.Core, Bcfg2.Logging
 
 log = logging.getLogger('bcfg-admin')
 
-colors = ['steelblue1', 'chartreuse', 'gold', 'magenta', 'indianred1', 'limegreen', 
-          'orange1', 'lightblue2', 'green1', 'blue1', 'yellow1', 'darkturquoise',
-          'gray66']
+import Bcfg2.Server.Admin
 
-usage = '''
-bcfg2-admin [options]
-fingerprint - print the server certificate fingerprint
-init        - initialize the bcfg2 repository
-              (this is interactive; only run once)
-pull        <client> <entry type> <entry name> 
-            - mine statistics for entry information
-minestruct  <client> 
-            - mine statistics for extra entries
-viz         [--includehosts] [--includebundles] [--includekey] 
-            [-o output.png] [--raw]
-client      add name= profile= uuid= password= address= secure= location=
-tidy        - clean up unused files from repo
-compare     <config1.xml> <config2.xml>
-            - compare two configurations for differences
-'''
+def mode_import(modename):
+    '''Load Bcfg2.Server.Admin.<mode>'''
+    modname = modename.capitalize()
+    mod = getattr(__import__("Bcfg2.Server.Admin.%s" %
+                             (modname)).Server.Admin, modname)
+    return getattr(mod, modname)
 
-config = '''
-[server]
-repository = %s
-structures = Bundler,Base
-generators = SSHbase,Cfg,Pkgmgr,Rules
-
-[statistics]
-sendmailpath = /usr/sbin/sendmail
-database_engine = sqlite3
-# 'postgresql', 'mysql', 'mysql_old', 'sqlite3' or 'ado_mssql'.
-database_name =
-# Or path to database file if using sqlite3.
-#<repository>/etc/brpt.sqlite is default path if left empty
-database_user =
-# Not used with sqlite3.
-database_password =
-# Not used with sqlite3.
-database_host =
-# Not used with sqlite3.
-database_port =
-# Set to empty string for default. Not used with sqlite3.
-web_debug = True
-
-
-[communication]
-protocol = xmlrpc/ssl
-password = %s
-key = %s/bcfg2.key
-
-[components]
-bcfg2 = %s
-'''
-
-groups = '''
-<Groups version='3.0'>
-   <Group profile='true' public='false' default='true' name='basic'>
-      <Group name='%s'/>
-   </Group>
-   <Group name='ubuntu'/>
-   <Group name='debian'/>
-   <Group name='freebsd'/>
-   <Group name='gentoo'/>
-   <Group name='redhat'/>
-   <Group name='suse'/>
-   <Group name='mandrake'/>
-   <Group name='solaris'/>
-</Groups>
-'''
-clients = '''
-<Clients version="3.0">
-   <Client profile="basic" pingable="Y" pingtime="0" name="%s"/>
-</Clients>
-'''
-
-prompt = '''
-please select which operating system your machine is running:
-a. Redhat/Fedora/RHEL/RHAS/Centos
-b. SUSE/SLES
-c. Mandrake
-d. Debian
-e. Ubuntu
-f. Solaris
-g. Gentoo
-h. FreeBSD
-'''
-
-def err_exit(emsg):
-    print emsg
-    raise SystemExit(1)
-
-#build bcfg2.conf file
-def initialize_repo(cfile):
-    '''Setup a new repo'''
-    repo = raw_input( "location of bcfg2 repository [/var/lib/bcfg2]: " )
-    if repo == '':
-        repo = '/var/lib/bcfg2'
-
-    password = ''
-    while ( password == '' ):
-        password = raw_input( "please provide the password used for communication verification: " )
-
-    #get the hostname
-    server = "https://%s:6789" % socket.getfqdn()
-    uri = raw_input( "please provide the server location[%s]: " % server)
-    if uri == '':
-        uri = server
-
-    #guess path of ssl key file
-    keypath = os.path.dirname(os.path.abspath(cfile))
-
-    try:
-        open(cfile,"w").write(config % ( repo, password, keypath, uri ))
-    except:
-        err_exit("Failed to write bcfg2 config file to %s" % cfile)
-
-    #generate the ssl key
-    print "Now we will generate the ssl key used for secure communitcation"
-    os.popen('openssl req -x509 -nodes -days 1000 -newkey rsa:1024 -out %s/bcfg2.key -keyout %s/bcfg2.key' % (keypath, keypath))
-    try:
-        os.chmod('%s/bcfg2.key'% keypath,'0600')
-    except:
-        pass
-    
-    #create the repo dirs
-    for subdir in ['SSHbase', 'Cfg', 'Pkgmgr', 'Rules', 'etc', 'Metadata',
-                   'Base', 'Bundler']:
-        path = "%s/%s" % (repo, subdir)
-        newpath = ''
-        for subdir in path.split('/'):
-            newpath = newpath + subdir + '/'
-            try:
-                os.mkdir(newpath)
-            except:
-                pass
-            
-    #create the groups.xml file
-    selection = ''
-    while ( selection == '' ):
-        print prompt
-        selection = raw_input(" selection: ")
-        if selection.lower() not in 'abcdefgh':
-            selection = ''
-    if selection.lower() == 'a':
-        selection = 'redhat'
-    elif selection.lower() == 'b':
-        selection = 'suse'
-    elif selection.lower() == 'c':
-        selection = 'mandrake'
-    elif selection.lower() == 'd':
-        selection = 'debian'
-    elif selection.lower() == 'e':
-        selection = 'ubuntu'
-    elif selection.lower() == 'f':
-        selection = 'solaris'
-    elif selection.lower() == 'g':
-        selection = 'gentoo'
-    elif selection.lower() == 'h':
-        selection = 'freebsd'
-
-    open("%s/Metadata/groups.xml"%repo, "w").write(groups%selection)
-
-    #now the clients file
-    open("%s/Metadata/clients.xml"%repo, "w").write(clients%socket.getfqdn())
-    print "Repository created successfuly in %s" % (repo)
-
-def get_repo_path(cfile='/etc/bcfg2.conf'):
-    '''return repository path'''
-    cfp = ConfigParser.ConfigParser()
-    cfp.read(cfile)
-    return cfp.get('server', 'repository')
-
-def load_stats(repo, client):
-    stats = lxml.etree.parse("%s/etc/statistics.xml" % (repo))
-    hostent = stats.xpath('//Node[@name="%s"]' % client)
-    if not hostent:
-        err_exit("Could not find stats for client %s" % (client))
-    return hostent[0]
-
-important = {'Package':['name', 'version'],
-             'Service':['name', 'status'],
-             'Directory':['name', 'owner', 'group', 'perms'],
-             'SymLink':['name', 'to'],
-             'ConfigFile':['name', 'owner', 'group', 'perms'],
-             'Permissions':['name', 'perms'],
-             'PostInstall':['name']}
-
-def compare(new, old):
-    for child in new.getchildren():
-        equiv = old.xpath('%s[@name="%s"]' % (child.tag, child.get('name')))
-        if not important.has_key(child.tag):
-            print "tag type %s not handled" % (child.tag)
-            continue
-        if len(equiv) == 0:
-            print "didn't find matching %s %s" % (child.tag, child.get('name'))
-            continue
-        elif len(equiv) >= 1:
-            if child.tag == 'ConfigFile':
-                if child.text != equiv[0].text:
-                    print " %s %s contents differ" \
-                          % (child.tag, child.get('name'))
-                    continue
-            noattrmatch = [field for field in important[child.tag] if \
-                           child.get(field) != equiv[0].get(field)]
-            if not noattrmatch:
-                new.remove(child)
-                old.remove(equiv[0])
-            else:
-                print " %s %s attributes %s do not match" % \
-                      (child.tag, child.get('name'), noattrmatch)
-    if len(old.getchildren()) == 0 and len(new.getchildren()) == 0:
-        return True
-    if new.tag == 'Independant':
-        name = 'Base'
-    else:
-        name = new.get('name')
-    both = []
-    oldl = ["%s %s" % (entry.tag, entry.get('name')) for entry in old]
-    newl = ["%s %s" % (entry.tag, entry.get('name')) for entry in new]
-    for entry in newl:
-        if entry in oldl:
-            both.append(entry)
-            newl.remove(entry)
-            oldl.remove(entry)
-    for entry in both:
-        print " %s differs (in bundle %s)" % (entry, name)
-    for entry in oldl:
-        print " %s only in old configuration (in bundle %s)" % (entry, name)
-    for entry in newl:
-        print " %s only in new configuration (in bundle %s)" % (entry, name)
-    return False
-
-def do_compare(cargs):
-    '''run file comparison'''
-    if '-r' in cargs:
-        cargs.remove('-r')
-        (oldd, newd) = args
-        (old, new) = [os.listdir(spot) for spot in args]
-        for item in old:
-            print "Entry:", item
-            state = do_compare([oldd + '/' + item, newd + '/' + item])
-            new.remove(item)
-            if state:
-                print "Entry:", item, "good"
-            else:
-                print "Entry:", item, "bad"
-        if new:
-            print "new has extra entries", new
-        return
-    try:
-        (old, new) = cargs
-    except IndexError:
-        print "Usage: bcfg2-admin compare <old> <new>"
-        raise SystemExit
-
-    try:
-        new = lxml.etree.parse(new).getroot()
-    except IOError:
-        print "Failed to read %s" % (new)
-        raise SystemExit(1)
-
-    try:
-        old = lxml.etree.parse(old).getroot()
-    except IOError:
-        print "Failed to read %s" % (old)
-        raise SystemExit(1)
-    
-    for src in [new, old]:
-        for bundle in src.findall('./Bundle'):
-            if bundle.get('name')[-4:] == '.xml':
-                bundle.set('name', bundle.get('name')[:-4])
-
-    rcs = []
-    for bundle in new.findall('./Bundle'):
-        equiv = old.xpath('Bundle[@name="%s"]' % (bundle.get('name')))
-        if len(equiv) == 0:
-            print "couldnt find matching bundle for %s" % bundle.get('name')
-            continue
-        if len(equiv) == 1:
-            if compare(bundle, equiv[0]):
-                new.remove(bundle)
-                old.remove(equiv[0])
-                rcs.append(True)
-            else:
-                rcs.append(False)
-        else:
-            print "dunno what is going on for bundle %s" % (bundle.get('name'))
-    i1 = new.find('./Independant')
-    i2 = old.find('./Independant')
-    if compare(i1, i2):
-        new.remove(i1)
-        old.remove(i2)
-    else:
-        rcs.append(False)
-    return not False in rcs
-
-def do_fingerprint(cfile):
-    '''calculate key fingerprint'''
-    cf = ConfigParser.ConfigParser()
-    cf.read([cfile])
-    keypath = cf.get('communication', 'key')
-    x509 = Bcfg2.tlslite.api.X509()
-    x509.parse(open(keypath).read())
-    print x509.getFingerprint()
-
-def do_pull(cfile, repopath, client, etype, ename):
-    '''Make currently recorded client state correct for entry'''
-    sdata = load_stats(repopath, client)
-    if sdata.xpath('.//Statistics[@state="dirty"]'):
-        state = 'dirty'
-    else:
-        state = 'clean'
-    # need to pull entry out of statistics
-    sxpath = ".//Statistics[@state='%s']/Bad/ConfigFile[@name='%s']/../.." % (state, ename)
-    sentries = sdata.xpath(sxpath)
-    print "Found %d entries for %s:%s:%s" % \
-          (len(sentries), client, etype, ename)
-    if not len(sentries):
-        raise SystemExit, 1
-    maxtime = max([time.strptime(stat.get('time')) for stat in sentries])
-    print "Found entry from", time.strftime("%c", maxtime)
-    statblock = [stat for stat in sentries \
-                 if time.strptime(stat.get('time')) == maxtime]
-    entry = statblock[0].xpath('.//Bad/ConfigFile[@name="%s"]' % ename)
-    if not entry:
-        err_exit("Could not find state data for entry; rerun bcfg2 on client system")
-    cfentry = entry[-1]
-
-
-    badfields = [field for field in ['perms', 'owner', 'group'] \
-                 if cfentry.get(field) != cfentry.get('current_' + field) and \
-                 cfentry.get('current_' + field)]
-    if badfields:
-        m_updates = dict([(field, cfentry.get('current_' + field)) for field in badfields])
-        print "got metadata_updates", m_updates
-    else:
-        m_updates = {}
-
-    if 'current_bdiff' in cfentry.attrib:
-        data = False
-        diff = binascii.a2b_base64(cfentry.get('current_bdiff'))
-    elif 'current_diff' in cfentry.attrib:
-        data = False
-        diff = cfentry.get('current_diff')
-    elif 'current_bfile' in cfentry.attrib:
-        data = binascii.a2b_base64(cfentry.get('current_bfile'))
-        diff = False
-    else:
-        if not m_updates:
-            print "having trouble processing entry. Entry is:"
-            print lxml.etree.tostring(cfentry)
-            raise SystemExit, 1
-        else:
-            data = False
-            diff = False
-
-    if diff:
-        print "Located diff:\n %s" % diff
-    elif data:
-        print "Found full (binary) file data"
-    if m_updates:
-        print "Found metadata updates"
-
-    if not diff and not data and not m_updates:
-        err_exit("Failed to locate diff or full data or metadata updates\nStatistics entry was:\n%s" % lxml.etree.tostring(cfentry))
-
-    try:
-        bcore = Bcfg2.Server.Core.Core({}, cfile)
-    except Bcfg2.Server.Core.CoreInitError, msg:
-        print "Core load failed because %s" % msg
-        raise SystemExit(1)
-    [bcore.fam.Service() for x in range(10)]
-    while bcore.fam.Service():
-        pass
-    m = bcore.metadata.get_metadata(client)
-    # find appropriate plugin in bcore
-    glist = [gen for gen in bcore.generators if
-             gen.Entries.get(etype, {}).has_key(ename)]
-    if len(glist) != 1:
-        err_exit("Got wrong numbers of matching generators for entry:" \
-                 + "%s" % ([g.__name__ for g in glist]))
-    plugin = glist[0]
-    try:
-        plugin.AcceptEntry(m, 'ConfigFile', ename, diff, data, m_updates)
-    except Bcfg2.Server.Plugin.PluginExecutionError:
-        err_exit("Configuration upload not supported by plugin %s" \
-                 % (plugin.__name__))
-    # svn commit if running under svn
-
-def do_minestruct(repopath, argdata):
-    '''Pull client entries into structure'''
-    if len(argdata) != 1:
-        err_exit("minestruct must be called with a client name")
-    client = argdata[0]
-    stats = load_stats(repopath, client)
-    if len(stats.getchildren()) == 2:
-        # client is dirty
-        current = [ent for ent in stats.getchildren() if ent.get('state') == 'dirty'][0]
-    else:
-        current = stats.getchildren()[0]
-    extra = current.find('Extra').getchildren()
-    log.info("Found %d extra entries" % (len(extra)))
-    log.info(["%s: %s" % (entry.tag, entry.get('name')) for entry in extra])
-
-def do_tidy(repo, args):
-    '''Clean up unused or unusable files from the repository'''
-    hostmatcher = re.compile('.*\.H_(\S+)$')
-    score = ([], [])
-    # clean up unresolvable hosts in SSHbase
-    for name in os.listdir("%s/SSHbase" % (repo)):
-        if not hostmatcher.match(name):
-            print "could not match name %s" % (name)
-        else:
-            hostname = hostmatcher.match(name).group(1)
-            if hostname in score[0] + score[1]:
-                continue
-            try:
-                socket.gethostbyname(hostname)
-                score[0].append(hostname)
-            except:
-                print "could not resolve %s" % (hostname)
-                score[1].append(hostname)
-    for name in os.listdir("%s/SSHbase" % (repo)):
-        if not hostmatcher.match(name):
-            print "could not match name %s" % (name)
-        else:
-            if hostmatcher.match(name).group(1) in score[1]:
-                if '-f' in args:
-                    os.unlink("%s/SSHbase/%s" % (repo, name))
-                else:
-                    answer = raw_input("Unlink file %s? [yN] " % name)
-                    if answer in ['y', 'Y']:
-                        os.unlink("%s/SSHbase/%s" % (repo, name))
-    # clean up file~
-    # clean up files without parsable names in Cfg
-
-def do_viz(repopath, myargs):
-    '''Build visualization of groups file'''
-    # First get options to the 'viz' subcommand
-    try:
-        opts, args = getopt.getopt(myargs, 'rhbko:', ['raw', 'includehosts', 'includebundles', 'includekey', 'outfile='])
-    except getopt.GetoptError, msg:
-        print msg
-        raise SystemExit(1)
-
-    options = []
-    for opt, arg in opts:
-        if   opt in ("-r", "--raw"):
-            options.append("raw")
-        elif opt in ("-h", "--includehosts"):
-            options.append("hosts")
-        elif opt in ("-b", "--includebundles"):
-            options.append("bundles")
-        elif opt in ("-k", "--includekey"):
-            options.append("key")
-        elif opt in ("-o", "--outfile"):
-            options.append("outfile")
-            outputfile = arg
-
-    groupdata = lxml.etree.parse(repopath + '/Metadata/groups.xml')
-    groupdata.xinclude()
-    groups = groupdata.getroot()
-    if 'raw' in options:
-        dotpipe = popen2.Popen4("dd bs=4M 2>/dev/null")
-    else:
-        dotpipe = popen2.Popen4("dot -Tpng")
-    categories = {'default':'grey83'}
-    instances = {}
-    egroups = groups.findall("Group") + groups.findall('.//Groups/Group')
-    for group in egroups:
-        if group.get('category', False):
-            if not categories.has_key(group.get('category')):
-                categories[group.get('category')] = colors.pop()
-        
-    try:
-        dotpipe.tochild.write("digraph groups {\n")
-    except:
-        print "write to dot process failed. Is graphviz installed?"
-        raise SystemExit(1)
-    dotpipe.tochild.write('\trankdir="LR";\n')
-    if 'hosts' in options:
-        clients = lxml.etree.parse(repopath + '/Metadata/clients.xml').getroot()
-        for client in clients.findall('Client'):
-            if instances.has_key(client.get('profile')):
-                instances[client.get('profile')].append(client.get('name'))
-            else:
-                instances[client.get('profile')] = [client.get('name')]
-        for profile, clist in instances.iteritems():
-            clist.sort()
-            dotpipe.tochild.write('''\t"%s-instances" [ label="%s", shape="record" ];\n''' % (profile, '|'.join(clist)))
-            dotpipe.tochild.write('''\t"%s-instances" -> "group-%s";\n''' % (profile, profile))
-
-    if 'bundles' in options:
-        bundles = []
-        [bundles.append(bund.get('name')) for bund in groups.findall('.//Bundle')
-         if bund.get('name') not in bundles]
-        bundles.sort()
-        for bundle in bundles:
-            dotpipe.tochild.write('''\t"bundle-%s" [ label="%s", shape="septagon"];\n''' % (bundle, bundle))
-    gseen = []
-    for group in egroups:
-        color = categories[group.get('category', 'default')]
-        if group.get('profile', 'false') == 'true':
-            style = "filled, bold"
-        else:
-            style = "filled"
-        gseen.append(group.get('name'))
-        dotpipe.tochild.write('\t"group-%s" [label="%s", style="%s", fillcolor=%s];\n' %
-                              (group.get('name'), group.get('name'), style, color))
-        if 'bundles' in options:
-            for bundle in group.findall('Bundle'):
-                dotpipe.tochild.write('\t"group-%s" -> "bundle-%s";\n' %
-                                      (group.get('name'), bundle.get('name')))
-        
-    for group in egroups:
-        for parent in group.findall('Group'):
-            if parent.get('name') not in gseen:
-                dotpipe.tochild.write('\t"group-%s" [label="%s", style="filled", fillcolor="grey83"];\n' %
-                                      (parent.get('name'), parent.get('name')))
-                gseen.append(parent.get("name"))
-            dotpipe.tochild.write('\t"group-%s" -> "group-%s" ;\n' %
-                                  (group.get('name'), parent.get('name')))
-    if 'key' in options:
-        dotpipe.tochild.write("\tsubgraph cluster_key {\n")
-        dotpipe.tochild.write('''\tstyle="filled";\n''')
-        dotpipe.tochild.write('''\tcolor="lightblue";\n''')
-        dotpipe.tochild.write('''\tBundle [ shape="septagon" ];\n''')
-        dotpipe.tochild.write('''\tGroup [shape="ellipse"];\n''')
-        dotpipe.tochild.write('''\tProfile [style="bold", shape="ellipse"];\n''')
-        dotpipe.tochild.write('''\tHblock [label="Host1|Host2|Host3", shape="record"];\n''')
-        for category in categories:
-            dotpipe.tochild.write('''\t''' + category + ''' [label="''' + category + \
-                                  '''", shape="record", style="filled", fillcolor=''' + \
-                                  categories[category] + '''];\n''')
-        dotpipe.tochild.write('''\tlabel="Key";\n''')
-        dotpipe.tochild.write("\t}\n")
-    dotpipe.tochild.write("}\n")
-    dotpipe.tochild.close()
-    data = dotpipe.fromchild.read()
-    if 'outfile' in options:
-        output = open(outputfile, 'w').write(data)
-    else:
-        print data
-
-def do_client(repopath, args):
-    '''Do things with clients'''
-    tree = lxml.etree.parse(repopath + '/Metadata/clients.xml')
-    root = tree.getroot()
-
-    if args[0] == 'add':
-        # Adding a node
-        print "Adding client..."
-        element = lxml.etree.Element("Client")
-        for i in args[1:]:
-            attr, val = i.split('=', 1)
-            if not(attr in ['name', 'profile', 'uuid', 'password', 'address', 'secure', 'location']):
-                print "Attribute %s unknown" % attr
-                raise SystemExit(1)
-            element.attrib[attr] = val
-        root.append(element)
-
-    elif args[0] in ['delete', 'remove']:
-        # Removing a node
-        print "Removing"
-
-    tree.write(repopath + '/Metadata/clients.xml')
-    print "Done"
-    
 if __name__ == '__main__':
-    Bcfg2.Logging.setup_logging('bcfg2-admin', to_console=False)
+    Bcfg2.Logging.setup_logging('bcfg2-admin', to_console=True)
 
     # Some sensible defaults
     configfile = "/etc/bcfg2.conf"
-    Repopath = ""
 
     try:
-        opts, args = getopt.getopt(sys.argv[1:], 'hC:R:', ['help', 'configfile=', 'repopath='])
+        opts, args = getopt.getopt(sys.argv[1:], 'hC:', ['help', 'configfile='])
     except getopt.GetoptError, msg:
         print msg
         raise SystemExit(1)
@@ -592,51 +31,31 @@ if __name__ == '__main__':
         print usage
         raise SystemExit(1)
 
+    help = False
     # First get the options...
     for opt, arg in opts:
         if opt in ("-h", "--help"):
-            print usage
-            raise SystemExit(1)
+            help = True
         if opt in ("-C", "--configfile"):
             configfile = arg
-        if opt in ("-R", "--repopath"):
-            Repopath = arg
-
-    # ...then do something with the other arguments
-    if Repopath == '' and 'init' not in args:
-        Repopath = get_repo_path(configfile)
-            
-    if len(args) < 1:
-        print usage
-
-    elif args[0] == "init":
-        initialize_repo(configfile)
-
-    elif args[0] == 'pull':
-        if len(args) != 4:
-            print usage
-            raise SystemExit(1)
-        do_pull(configfile, Repopath, args[1], args[2], args[3])
-
-    elif args[0] == 'minestruct':
-        do_minestruct(Repopath, args[1:])
-
-    elif args[0] == 'tidy':
-        do_tidy(Repopath, args[1:])
 
-    elif args[0] == 'viz':
-        do_viz(Repopath, args[1:])
-
-    elif args[0] == 'compare':
-        do_compare(args[1:])
-
-    elif args[0] == 'fingerprint':
-        do_fingerprint(configfile)
+    modes = [x.lower() for x in Bcfg2.Server.Admin.__all__]
+    modes.remove('mode')
+    if help or len(args) < 1 or args[0] == 'help':
+        if len(args) > 1:
+            args = [args[1], args[0]]
+        else:
+            for mod in [mode_import(mode) for mode in modes]:
+                print mod.__shorthelp__
+            raise SystemExit(0)
+    if args[0] in modes:
+        modname = args[0].capitalize()
+        try:
+            mode_cls = mode_import(modname)
+        except ImportError, e:
+            log.error("Failed to load admin mod %s: %s" % (modname, e))
+        mode = mode_cls(configfile)
+        mode(args[1:])
+    else:
+        print "unknown mode %s" % args[0]
 
-    elif args[0] == 'client':
-        if len(args) < 4:
-            print usage
-            raise SystemExit(1)
-        do_client(Repopath, args[1:])
-    else:
-        print usage