From 376a61632ec63f4013b47def9708df12acc6cf79 Mon Sep 17 00:00:00 2001
From: Joerg Jaspert <joerg@debian.org>
Date: Sun, 19 Oct 2008 18:18:00 +0200
Subject: runmirrors

first code for a 2stage sync trigger.

Signed-off-by: Joerg Jaspert <joerg@debian.org>
---
 bin/runmirrors | 39 ++++++++++++++++++++++++++++++++-------
 1 file changed, 32 insertions(+), 7 deletions(-)

(limited to 'bin/runmirrors')

diff --git a/bin/runmirrors b/bin/runmirrors
index 50014da..06423be 100755
--- a/bin/runmirrors
+++ b/bin/runmirrors
@@ -1,11 +1,14 @@
 #! /bin/bash
 
 set -e
+set -u
 
 # runmirrors script for Debian
 # Based losely on existing scripts, written by an unknown number of
 # different people over the years.
 #
+# Copyright (C) 2008 Joerg Jaspert <joerg@debian.org>
+#
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License as
 # published by the Free Software Foundation; version 2.
@@ -44,6 +47,8 @@ export HOME LOGNAME USER PATH BASEDIR
 LOGDIR=${LOGDIR:-"${BASEDIR}/log"}
 # Our own logfile
 LOG=${LOG:-"${LOGDIR}/${NAME}.log"}
+# Our lockfile directory
+LOCKDIR=${LOCKDIR:-"${BASEDIR}/locks"}
 # How to rotate the log
 SAVELOG=${SAVELOG:-"savelog -t -c 14"}
 # Amount of delay between mirrors if the mirror file contains a DELAY
@@ -55,13 +60,14 @@ PROGRAM=${PROGRAM:-"${NAME}-$(hostname -s)"}
 # extra ssh options we might want hostwide
 SSH_OPTS=${SSH_OPTS:-""}
 
-# Make sure we have our log directory
-mkdir -p ${LOGDIR}
-
 # Some sane defaults
 cd ${BASEDIR}
 umask 002
 
+# Make sure we have our log and lock directories
+mkdir -p ${LOGDIR}
+mkdir -p ${LOCKDIR}
+
 trap 'log "Mirrorpush done" >> ${LOG}; ${SAVELOG} "${LOG}" > /dev/null' EXIT
 
 log "Pushing leaf mirrors" >> ${LOG}
@@ -74,14 +80,21 @@ if [ -n "${HOOK1}" ]; then
 fi
 
 # From here on we do *NOT* want to exit on errors. We don't want to
-# stop pushing mirrors just because we can't reach one atm.
+# stop pushing mirrors just because we can't reach one of them.
 set +e
 
+# Built up our list of 2-stage mirrors.
+PUSHLOCKS=""
+egrep '^staged' ${MIRRORS} |
+while read MTYPE MLNAME MHOSTNAME MUSER MPROTO MKEYFILE; do
+	PUSHLOCKS="${PUSHLOCKS} ${LOCKDIR}/${MLNAME}.stage1"
+done
+
 # Now read our mirrorfile and push the mirrors defined in there.
 # We use grep to easily sort out all lines having a # in front of them or are empty.
 egrep -v '^[[:space:]]*(#|$)' ${MIRRORS} |
-while read MLNAME MHOSTNAME MUSER MPROTO MKEYFILE; do
-	if [ "x${MLNAME}x" = "xDELAYx" ]; then
+while read MTYPE MLNAME MHOSTNAME MUSER MPROTO MKEYFILE; do
+	if [ "x${MTYPE}x" = "xDELAYx" ]; then
 		# We should wait a bit.
 		log "Delay of ${DELAY} seconds requested, sleeping" >> ${LOG}
 		sleep ${DELAY}
@@ -102,10 +115,22 @@ while read MLNAME MHOSTNAME MUSER MPROTO MKEYFILE; do
 		continue
 	fi
 
+	# Built our array
+	SIGNAL_OPTS=(
+		MIRROR="${MLNAME}"
+		HOSTNAME="${MHOSTNAME}"
+		USERNAME="${MUSER}"
+		SSHPROTO="${MPROTO}"
+		SSHKEY="${MKEYFILE}"
+		PUSHLOCKOWN="${LOCKDIR}/${MLNAME}.stage1"
+		PUSHTYPE="${MTYPE}"
+	)
+
 	# And finally, push the mirror
 	log "Trigger ${MLNAME}" >> ${LOG}
-	signal ${MLNAME} ${MHOSTNAME} ${MUSER} ${MPROTO} ${MKEYFILE} "${SSH_OPTS}"
+	signal "${SIGNAL_OPTS}" &
 	log "Trigger for ${MLNAME} done" >> ${LOG}
+
 	if [ -n "${HOOK2}" ]; then
 		log "Running hook2: ${HOOK2}" >> ${LOG}
 		${HOOK1}
-- 
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