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author | Ton Voon <tonvoon@users.sourceforge.net> | |
Tue, 13 May 2003 23:20:08 +0000 (23:20 +0000) | ||
committer | Ton Voon <tonvoon@users.sourceforge.net> | |
Tue, 13 May 2003 23:20:08 +0000 (23:20 +0000) |
verbose output levels
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@508 f882894a-f735-0410-b71e-b25c423dba1c
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@508 f882894a-f735-0410-b71e-b25c423dba1c
doc/developer-guidelines.sgml | patch | blob | history |
index 42ad89642c8b7de8cef4c8a18e78f675d761613a..3edca6b88af4ed809b3508cc75780a43c0af3fe2 100644 (file)
when it notifies contacts about potential problems. If you print
multiple lines, you're out of luck. Remember, keep it short and
to the point.</para>
- </section>
+ </section>
+
+ <section><title>Verbose output</title>
+ <para>Use the -v flag for verbose output. You should allow multiple
+ -v options for additional verbosity, up to a maximum of 3. The standard
+ type of output should be:</para>
+
+ <table id="verbose_levels"><title>Verbose output levels</title>
+ <tgroup cols="2">
+ <thead>
+ <row>
+ <entry><para>Verbosity level</para></entry>
+ <entry><para>Type of output</para></entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry align=center><para>0</para></entry>
+ <entry><para>Single line, minimal output. Summary</para></entry>
+ </row>
+ <row>
+ <entry align=center><para>1</para></entry>
+ <entry><para>Single line, additional information (eg list processes that fail)</para></entry>
+ </row>
+ <row>
+ <entry align=center><para>2</para></entry>
+ <entry><para>Multi line, configuration debug output (eg ps command used)</para></entry>
+ </row>
+ <row>
+ <entry align=center><para>3</para></entry>
+ <entry><para>Lots of detail for plugin problem diagnosis</para></entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </section>
<section><title>Screen Output</title>
<para>The plug-in should print the diagnostic and just the
<section><title>Option Processing</title>
<para>For plugins written in C, we recommend the C standard
- getopt library for short options. If using getopt_long, check to
- be sure that HAVE_GETOPT_H is defined (configure checks this and
- sets the #define in common/config.h).</para>
+ getopt library for short options. Getopt_long is always available.
+ </para>
<para>For plugins written in Perl, we recommend Getopt::Long module.</para>
-w warning threshold (--warning)
-c critical threshold (--critical)
-H hostname (--hostname)
+ -v verbose (--verbose)
</literallayout>
<para>In addition to the reserved options above, some other standard options are:</para>
help. Help text should fit on an 80-character width display, but
may run as many lines as needed.</para>
+ <para>The option -v or --verbose should be present in all plugins.
+ The user should be allowed to specify -v multiple times to increase
+ the verbosity level, as described in <xref linkend="verbose_levels">.</para>
</section>
<section>
<para>Old style was to do things like -ct for critical time and
-cv for critical value. That goes out the window with POSIX
- getopt. The allowable alternatves are:</para>
+ getopt. The allowable alternatives are:</para>
<orderedlist>
<listitem>
<para>As always, comments are welcome - making this consistent
without a host of long options was quite a hassle, and I would
- suspect that there are flaws in this strategy. Perhaps clear
- long-options is the most important of the above choices, but not
- all POSIX systems have C libraries for long options, so the
- short forms must exist as well.</para>
+ suspect that there are flaws in this strategy.
+ </para>
</section>
</section>
+<section id="CodingGuidelines"><title>Coding guidelines</title>
+ <para>See <ulink url="http://www.gnu.org/prep/standards_toc.html">GNU
+ Coding standards</ulink> for general guidelines.</para>
+ <section><title>Comments</title>
+ <para>You should use /* */ for comments and not // as some compilers
+ do not handle the latter form</para>
+ </section>
+</section>
+
<section id="SubmittingChanges"><title>New submissions and patches</title>
- <para>If you would like other to use your plugins and have it included in
- the standard distribution, please include patches for the relavant
- configuration files, in particular "configure.in" Otherwise submitted
+ <para>If you would like others to use your plugins and have it included in
+ the standard distribution, please include patches for the relevant
+ configuration files, in particular "configure.in". Otherwise submitted
plugins will be included in the contrib directory.</para>
<para>Plugins in the contrib directory are going to be migrated to the
standard plugins/plugin-scripts directory as time permits and per user
- requests</para>
+ requests. The minimum requirements are:</para>
+
+ <orderedlist>
+ <listitem>
+ <para>The standard command options are supported (--help, --version,
+ --timeout, --warning, --critical)</para>
+ </listitem>
+ <listitem>
+ <para>It is determined to be not redundant (for instance, we would not
+ add a new version of check_disk just because someone had provide
+ a plugin that had perf checking - we would incorporate the features
+ into an exisiting plugin)</para>
+ </listitem>
+ <listitem>
+ <para>One of the developers has had the time to audit the code and declare
+ it ready for core</para>
+ </listitem>
+ <listitem>
+ <para>It should also follow code format guidelines, and use functions from
+utils (perl or c or sh) rather than cooking it's own</para>
+ </listitem>
+ </orderedlist>
<para>Patches should be submitted via the SourceForge and be announced to
the mailing list.</para>