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make --pidfile option for handling pids.

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Add manpage on the way
This commit is contained in:
Junichi Uekawa 2008-10-08 04:08:52 +00:00
parent 673570ea06
commit f62c1f3cc2
4 changed files with 342 additions and 1 deletions
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13
Makefile.am
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@ -2,13 +2,24 @@
bin_PROGRAMS = lsyncd
lsyncd_SOURCES = lsyncd.c
TESTS = tests/help.sh \
tests/pidfile.sh \
tests/version.sh \
tests/wrong-logfile.sh \
tests/wrong-rsync.sh
datarootdir = @datarootdir@
EXTRA_DIST = config.h.in inotify-nosys.h
EXTRA_DIST = config.h.in inotify-nosys.h manpage.xml
nodist_man1_MANS = lsyncd.1
check-syntax:
$(CC) -c -O2 -Wall $(CHK_SOURCES) -o/dev/null
lsyncd.1: manpage.xml
xsltproc -''-nonet \
-''-param man.charmap.use.subset "0" \
-''-param make.year.ranges "1" \
-''-param make.single.year.ranges "1" \
/usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
manpage.xml

26
lsyncd.c
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@ -73,6 +73,11 @@ char * rsync_binary = "/usr/bin/rsync";
*/
char * exclude_file = NULL;
/**
* Option: pidfile, which holds the PID of the running daemon process
*/
char * pidfile = NULL;
/**
* The maximum character length paths may take
*/
@ -820,6 +825,7 @@ void print_help(char *arg0)
printf(" --no-daemon Do not detach, log to stdout/stderr\n");
printf(" --rsync-binary FILE Call this binary to sync (DEFAULT: %s)\n",
rsync_binary);
printf(" --pidfile FILE Create a file containing pid of the daemon\n");
printf(" --scarce Only log errors\n");
printf(" --version Print version an exit.\n");
printf("\n");
@ -852,6 +858,7 @@ bool parse_options(int argc, char **argv)
{"logfile", 1, NULL, 0},
{"no-daemon", 0, &flag_nodaemon, 1},
{"rsync-binary", 1, NULL, 0},
{"pidfile", 1, NULL, 0},
{"scarce", 0, &loglevel, 3},
{"version", 0, NULL, 0},
{0, 0, 0, 0}
@ -893,6 +900,10 @@ bool parse_options(int argc, char **argv)
rsync_binary = s_strdup(optarg);
}
if (!strcmp("pidfile", long_options[oi].name)) {
pidfile = s_strdup(optarg);
}
}
}
@ -982,6 +993,17 @@ bool parse_exclude_file()
return true;
}
void write_pidfile() {
FILE* f = fopen(pidfile, "w");
if (!f) {
printlogf(LOG_ERROR, "Error: cannot write pidfile [%s]\n", pidfile);
exit(-1);
}
fprintf(f, "%i\n", getpid());
fclose(f);
}
/**
* main
*/
@ -1009,6 +1031,10 @@ int main(int argc, char **argv)
printlogf(LOG_NORMAL, "Starting up");
if (pidfile) {
write_pidfile();
}
dir_watch_size = 2;
dir_watches = s_calloc(dir_watch_size, sizeof(struct dir_watch));

281
manpage.xml Normal file
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@ -0,0 +1,281 @@
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!--
`xsltproc -''-nonet \
-''-param man.charmap.use.subset "0" \
-''-param make.year.ranges "1" \
-''-param make.single.year.ranges "1" \
/usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl \
manpage.xml'
A manual page <package>.<section> will be generated. You may view the
manual page with: nroff -man <package>.<section> | less'. A typical entry
in a Makefile or Makefile.am is:
DB2MAN = /usr/share/sgml/docbook/stylesheet/xsl/nwalsh/manpages/docbook.xsl
XP = xsltproc -''-nonet -''-param man.charmap.use.subset "0"
manpage.1: manpage.xml
$(XP) $(DB2MAN) $<
The xsltproc binary is found in the xsltproc package. The XSL files are in
docbook-xsl. A description of the parameters you can use can be found in the
docbook-xsl-doc-* packages. Please remember that if you create the nroff
version in one of the debian/rules file targets (such as build), you will need
to include xsltproc and docbook-xsl in your Build-Depends control field.
Alternatively use the xmlto command/package. That will also automatically
pull in xsltproc and docbook-xsl.
Notes for using docbook2x: docbook2x-man does not automatically create the
AUTHOR(S) and COPYRIGHT sections. In this case, please add them manually as
<refsect1> ... </refsect1>.
To disable the automatic creation of the AUTHOR(S) and COPYRIGHT sections
read /usr/share/doc/docbook-xsl/doc/manpages/authors.html. This file can be
found in the docbook-xsl-doc-html package.
Validation can be done using: `xmllint -''-noout -''-valid manpage.xml`
General documentation about man-pages and man-page-formatting:
man(1), man(7), http://www.tldp.org/HOWTO/Man-Page/
-->
<!-- Fill in your name for FIRSTNAME and SURNAME. -->
<!ENTITY dhfirstname "Junichi">
<!ENTITY dhsurname "Uekawa">
<!-- dhusername could also be set to "&firstname; &surname;". -->
<!ENTITY dhusername "Junichi Uekawa">
<!ENTITY dhemail "dancer@debian.org">
<!-- SECTION should be 1-8, maybe w/ subsection other parameters are
allowed: see man(7), man(1) and
http://www.tldp.org/HOWTO/Man-Page/q2.html. -->
<!ENTITY dhsection "1">
<!-- TITLE should be something like "User commands" or similar (see
http://www.tldp.org/HOWTO/Man-Page/q2.html). -->
<!ENTITY dhtitle "lsyncd User Manual">
<!ENTITY dhucpackage "LSYNCD">
<!ENTITY dhpackage "lsyncd">
]>
<refentry>
<refentryinfo>
<title>&dhtitle;</title>
<productname>&dhpackage;</productname>
<authorgroup>
<author>
<firstname>&dhfirstname;</firstname>
<surname>&dhsurname;</surname>
<contrib>Wrote this manpage for the Debian system.</contrib>
<address>
<email>&dhemail;</email>
</address>
</author>
</authorgroup>
<copyright>
<year>2008</year>
<holder>&dhusername;</holder>
</copyright>
<legalnotice>
<para>This manual page was written for the Debian system
(but may be used by others).</para>
<para>Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU General Public License,
Version 2 or (at your option) any later version published by
the Free Software Foundation.</para>
<para>On Debian systems, the complete text of the GNU General Public
License can be found in
<filename>/usr/share/common-licenses/GPL</filename>.</para>
</legalnotice>
</refentryinfo>
<refmeta>
<refentrytitle>&dhucpackage;</refentrytitle>
<manvolnum>&dhsection;</manvolnum>
</refmeta>
<refnamediv>
<refname>&dhpackage;</refname>
<refpurpose>A rsync-based tool to monitor a directory and update modifications</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>&dhpackage;</command>
<!-- These are several examples, how syntaxes could look -->
<arg choice="opt"><option>--debug</option></arg>
<arg choice="opt"><option>--dryrun</option></arg>
<arg choice="opt"><option>--exclude-file <parameter>FILE</parameter></option></arg>
<arg choice="opt"><option>--logfile <parameter>FILE</parameter></option></arg>
<arg choice="opt"><option>--no-daemon</option></arg>
<arg choice="opt"><option>--rsync-binary <parameter>FILE</parameter></option></arg>
<arg choice="opt"><option>--pidfile <parameter>FILE</parameter></option></arg>
<arg choice="opt"><option>--scarce</option></arg>
<arg choice="plain"><replaceable>source</replaceable></arg>
<arg choice="plain"><replaceable>target</replaceable></arg>
</cmdsynopsis>
<cmdsynopsis>
<command>&dhpackage;</command>
<!-- Normally the help and version options make the programs stop
right after outputting the requested information. -->
<group choice="opt">
<arg choice="plain">
<group choice="req">
<arg choice="plain"><option>--help</option></arg>
</group>
</arg>
<arg choice="plain">
<group choice="req">
<arg choice="plain"><option>--version</option></arg>
</group>
</arg>
</group>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1 id="description">
<title>DESCRIPTION</title>
<para>This manual page documents briefly the
<command>&dhpackage;</command>
command.</para>
<para>This manual page was written for the Debian distribution
because the original program does not have a manual page.
Instead, it has a README documentation in plain text.</para>
<para><command>&dhpackage;</command> is a program that uses rsync
to synchronize local directories with a remote machine running
rsyncd. Lsyncd watches multiple directory trees through
inotify. It will first rsync all directories with the remote
host, and then sync single files by collecting the inotify
events. This tool is a light-weight live mirror solution.
</para>
</refsect1>
<refsect1 id="options">
<title>OPTIONS</title>
<para>The program takes options starting with two dashes (`-'). A summary of
options is included below.</para>
<variablelist>
<!-- Use the variablelist.term.separator and the
variablelist.term.break.after parameters to
control the term elements. -->
<varlistentry>
<term><option>--debug</option></term>
<listitem>
<para>Log debug messages</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--dryrun</option></term>
<listitem>
<para>Do not call rsync, run dry only</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--exclude-file <parameter>FILE</parameter></option></term>
<listitem>
<para>Exclude file handlet to rsync (DEFAULT: None).</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--logfile <parameter>FILE</parameter></option></term>
<listitem>
<para>Put log here (DEFAULT: /var/log/lsyncd).</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--no-daemon</option></term>
<listitem>
<para>Do not detach, log to stdout/stderr.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--rsync-binary <parameter>FILE</parameter></option></term>
<listitem>
<para>Call this binary to sync (DEFAULT: /usr/bin/rsync).</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--pidfile <parameter>FILE</parameter></option></term>
<listitem>
<para>Create a file with pid of application.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--scarce</option></term>
<listitem>
<para>Only log errors.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--help</option></term>
<listitem>
<para>Show summary of options.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--version</option></term>
<listitem>
<para>Show version of program.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="files">
<title>FILES</title>
<variablelist>
<varlistentry>
<term><filename>/var/log/lsyncd</filename></term>
<listitem>
<para>The default location of log file. Make sure the
running user has write access to this file, or specify a
different log file name.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="diagnostics">
<title>DIAGNOSTICS</title>
<para>The following diagnostics may be issued
on <filename class="devicefile">stderr</filename>:</para>
<variablelist>
<varlistentry>
<term><errortext>Out of memory!</errortext></term>
<listitem>
<para>It might get out of memory.
</para>
</listitem>
</varlistentry>
</variablelist>
<para><command>&dhpackage;</command> provides some return codes, that can
be used in scripts:</para>
<segmentedlist>
<segtitle>Code</segtitle>
<segtitle>Diagnostic</segtitle>
<seglistitem>
<seg><errorcode>0</errorcode></seg>
<seg>Program exited successfully.</seg>
</seglistitem>
<seglistitem>
<seg><errorcode>-1 (255)</errorcode></seg>
<seg>Something bad has happened.</seg>
</seglistitem>
</segmentedlist>
</refsect1>
<refsect1 id="bugs">
<!-- Or use this section to tell about upstream BTS. -->
<title>BUGS</title>
<para>TBD.</para>
</refsect1>
<refsect1 id="see_also">
<title>SEE ALSO</title>
<!-- In alpabetical order. -->
<para><citerefentry>
<refentrytitle>rsync</refentrytitle>
<manvolnum>1</manvolnum>
</citerefentry></para>
<para>The programs are documented fully in README file available
in <filename>/usr/share/doc/lsyncd/README.gz</filename>.</para>
</refsect1>
</refentry>

23
tests/pidfile.sh Executable file
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@ -0,0 +1,23 @@
#!/bin/bash
set -e
WORKTARGET=$(mktemp -d)
PIDFILE=$(mktemp)
LOGFILE=$(mktemp)
./lsyncd --logfile "${LOGFILE}" --pidfile "${PIDFILE}" . "${WORKTARGET}"
sleep 1s
LSYNCPID=$(cat "${PIDFILE}")
if ! kill "${LSYNCPID}"; then
echo "kill failed"
exit 1
fi
sleep 1s
if kill "${LSYNCPID}"; then
echo process still exists after kill
exit 1
fi
rm "${PIDFILE}"
rm "${LOGFILE}"
rm -rf "${WORKTARGET}"