1: #!/usr/bin/perl
2: # The LearningOnline Network with CAPA
3: #
4: # lonManage supports remote management of nodes in a LonCAPA cluster.
5: #
6: # $Id: lonManage,v 1.4 2003/08/12 10:40:44 foxr Exp $
7: #
8: # $Id: lonManage,v 1.4 2003/08/12 10:40:44 foxr Exp $
9: #
10: # Copyright Michigan State University Board of Trustees
11: #
12: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
13: ## LON-CAPA is free software; you can redistribute it and/or modify
14: # it under the terms of the GNU General Public License as published by
15: # the Free Software Foundation; either version 2 of the License, or
16: # (at your option) any later version.
17: #
18: # LON-CAPA is distributed in the hope that it will be useful,
19: # but WITHOUT ANY WARRANTY; without even the implied warranty of
20: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21: # GNU General Public License for more details.
22: #
23: # You should have received a copy of the GNU General Public License
24: # along with LON-CAPA; if not, write to the Free Software
25: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26: #
27: # /home/httpd/html/adm/gpl.txt
28: #
29: # http://www.lon-capa.org/
30: #
31: #
32: # lonManage supports management of remot nodes in a lonCAPA cluster.
33: # it is a command line tool. The following command line syntax (usage)
34: # is supported:
35: #
36: # lonManage -push <tablename> newfile host
37: # Push <tablename> to the lonTabs directory. Note that
38: # <tablename> must be one of:
39: # hosts (hosts.tab)
40: # domain (domain.tab)
41: #
42: # lonManage -reinit lonc host
43: # Sends a HUP signal to the remote systems's lond.
44: #
45: # lonmanage -reinit lond host
46: # Requests the remote system's lond perform the same action as if
47: # it had received a HUP signal.
48: #
49: # In the above syntax, the host above is the hosts.tab name of a host,
50: # not the IP address of the host.
51: #
52: # $Log: lonManage,v $
53: # Revision 1.4 2003/08/12 10:40:44 foxr
54: # Get switch parsing right.
55: #
56: # Revision 1.3 2003/08/12 10:22:35 foxr
57: # Put in parameter parsing infrastructure
58: #
59: # Revision 1.2 2003/08/12 09:58:49 foxr
60: # Add usage and skeleton documentation.
61: #
62: #
63: use Getopt::Long;
64:
65: sub Usage {
66: print "Usage:";
67: print <<USAGE;
68: lonManage --push=<tablename> newfile host
69: Push <tablename> to the lonTabs directory. Note that
70: <tablename> must be one of:
71: hosts (hosts.tab)
72: domain (domain.tab)
73:
74: lonManage --reinit=lonc host
75: Sends a HUP signal to the remote systems's lond.
76:
77: lonmanage --reinit=lond host
78: Requests the remote system's lond perform the same action as if
79: it had received a HUP signal.
80:
81: In the above syntax, the host above is the hosts.tab name of a host,
82: not the IP address of the host.
83: USAGE
84:
85:
86: }
87:
88: #
89: # Use Getopt::Long to parse the parameters of the program.
90: #
91: # Return value is a list consisting of:
92: # A 'command' which is one of:
93: # push - table push requested.
94: # reinit - reinit requested.
95: # Additional parameters as follows:
96: # for push: Tablename, hostname
97: # for reinit: Appname hostname
98: #
99: # This function does not validation of the parameters of push and
100: # reinit.
101: #
102: # returns a list. The first element of the list is the operation name
103: # (e.g. reinit or push). The second element is the switch parameter.
104: # for push, this is the table name, for reinit, this is the process name.
105: # Additional elements of the list are the command argument. The count of
106: # command arguments is validated, but not their semantics.
107: #
108: # returns an empty list if the parse fails.
109: #
110:
111: sub ParseArgs {
112: my $pushing = '';
113: my $reiniting = '';
114: if(!GetOptions('push=s' => \$pushing,
115: 'reinit=s' => \$reinitting)) {
116: return ();
117: }
118:
119: # Require exactly one of --push and --reinit
120:
121: my $command = '';
122: my $commandarg = '';
123: if($pushing ne '') {
124: if($command ne '') {
125: return ();
126: } else {
127: $command = 'push';
128: $commandarg = $pushing;
129: }
130: }
131: if ($reinitting ne '') {
132: if($command ne '') {
133: return ();
134: } else {
135: $command = 'reinit';
136: $commandarg = $reinitting;
137: }
138: }
139:
140: return ($command, $commandarg);
141: }
142:
143: #
144: # If command parsing failed, then print usage:
145:
146: @status = ParseArgs;
147: $nparam = @status;
148:
149: if($nparam == 0) {
150: Usage;
151: exit -1;
152: }
153: print "Will do a $status[0] : $status[1]\n";
154:
155: exit 0;
156:
157: =head1 NAME
158: lonManage - Command line utility for remote management of lonCAPA
159: cluster nodes.
160:
161: =head1 SYNOPSIS
162:
163: Usage:
164: B<lonManage --push=<tablename> newfile host>
165: Push <tablename> to the lonTabs directory. Note that
166: <tablename> must be one of:
167: hosts (hosts.tab)
168: domain (domain.tab)
169:
170: B<lonManage --reinit=lonc host>
171: Sends a HUP signal to the remote systems's lond.
172:
173: B<lonmanage --reinit=lond host>
174: Requests the remote system's lond perform the same action as if
175: it had received a HUP signal.
176:
177: In the above syntax, the host above is the hosts.tab name of a host,
178: not the IP address of the host.
179:
180:
181: =head1 DESCRIPTION
182:
183: =head1 PREREQUISITES
184:
185: =item Getopt::Long
186:
187: =head1 CATEGORIES
188: Command line utility
189:
190: =cut
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