#!/usr/bin/perl -w # start-repcached # 2011 - Jean Caffou # This script handles the parsing of the /etc/repcached.conf file # and was originally created for the Debian distribution. # Anyone may use this little script under the same terms as # memcached itself. use strict; if($> != 0 and $< != 0) { print STDERR "Only root wants to run start-repcached.\n"; exit; } my $params; my $etchandle; my $etcfile = "/etc/repcached.conf"; # This script assumes that repcached is located at /usr/local/bin/memcached, and # that the pidfile is writable at /var/run/repcached.pid my $memcached = "/usr/local/bin/memcached"; my $pidfile = "/var/run/repcached.pid"; # If we don't get a valid logfile parameter in the /etc/repcached.conf file, # we'll just throw away all of our in-daemon output. my $fd_reopened = "/dev/null"; sub handle_logfile { my ($logfile) = @_; $fd_reopened = $logfile; } sub reopen_logfile { my ($logfile) = @_; open *STDERR, ">>$logfile"; open *STDOUT, ">>$logfile"; open *STDIN, ">>/dev/null"; $fd_reopened = $logfile; } # This is set up in place here to support other non -[a-z] directives my $conf_directives = { "logfile" => \&handle_logfile, }; if(open $etchandle, $etcfile) { foreach my $line (<$etchandle>) { $line ||= ""; $line =~ s/\#.*//g; $line =~ s/\s+$//g; $line =~ s/^\s+//g; next unless $line; next if $line =~ /^\-[dh]/; if($line =~ /^[^\-]/) { my ($directive, $arg) = $line =~ /^(.*?)\s+(.*)/; $conf_directives->{$directive}->($arg); next; } push @$params, $line; } }else{ $params = []; } push @$params, "-u root" unless(grep "-u", @$params); $params = join " ", @$params; if(-e $pidfile) { open PIDHANDLE, "$pidfile"; my $localpid = ; close PIDHANDLE; chomp $localpid; if(-d "/proc/$localpid") { print STDERR "repcached is already running.\n"; exit; }else{ `rm -f $localpid`; } } my $pid = fork(); if($pid == 0) { reopen_logfile($fd_reopened); exec "$memcached $params"; exit(0); }else{ if(open PIDHANDLE,">$pidfile") { print PIDHANDLE $pid; close PIDHANDLE; }else{ print STDERR "Can't write pidfile to $pidfile.\n"; } }