From c536de67b14fd943f937be7bc84b099186632bc1 Mon Sep 17 00:00:00 2001
From: David Vazgenovich Shakaryan <dvshakaryan@gmail.com>
Date: Mon, 27 Sep 2010 05:55:19 -0700
Subject: Add SSH_OPTIONS setting, check that config exists.

---
 lognotify.sh | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/lognotify.sh b/lognotify.sh
index 161a50b..f291c50 100755
--- a/lognotify.sh
+++ b/lognotify.sh
@@ -1,7 +1,14 @@
 #!/bin/bash
 #
+# lognotify.sh
+# http://github.com/omp/lognotify
+#
 # Copyright 2010 David Vazgenovich Shakaryan <dvshakaryan@gmail.com>
-# Distributed under the terms of the GNU General Public License v3
+# Distributed under the terms of the GNU General Public License v3.
+# See http://www.gnu.org/licenses/gpl.txt for the full license text.
+#
+# Retrieve additions to remote log files via SSH. Log files are cached locally
+# and only new lines are fetched from the server.
 
 CACHEDIR="${HOME}/.cache/lognotify"
 CONFIGDIR="${HOME}/.config/lognotify"
@@ -12,7 +19,13 @@ if [ $# != 1 ]; then
 fi
 
 IDENTIFIER="$1"
-source "${CONFIGDIR}/${IDENTIFIER}"
+
+if [ -f "${CONFIGDIR}/${IDENTIFIER}" ]; then
+	source "${CONFIGDIR}/${IDENTIFIER}"
+else
+	echo "$0: configuration file for specified identifier not found" >&2
+	exit 1
+fi
 
 # Setup cache directory if nonexistent.
 if [ ! -d "${CACHEDIR}" ]; then
@@ -33,16 +46,15 @@ echo "${LINES}"
 
 echo -n "* Acquiring new lines via SSH... "
 if [ "${LINES}" == 0 ]; then
-	LOGAPPEND=$(ssh ${SERVER} "cat ${LOGPATH}")
+	LOGAPPEND=$(ssh ${SSH_OPTIONS} ${SSH_HOSTNAME} "cat ${LOGPATH}")
 else
-	LOGAPPEND=$(ssh ${SERVER} "cat ${LOGPATH} | sed -e '1,${LINES}d'")
+	LOGAPPEND=$(ssh ${SSH_OPTIONS} ${SSH_HOSTNAME} "cat ${LOGPATH} | sed -e '1,${LINES}d'")
 fi
 echo "Done"
 
 if [ -n "${LOGAPPEND}" ]; then
 	echo "* Number of new lines: $(echo "${LOGAPPEND}" | wc -l)"
-	echo
 	echo "${LOGAPPEND}" | tee -a "${CACHEDIR}/${IDENTIFIER}"
 else
-	echo "* No new lines found."
+	echo "* No new lines in log."
 fi
-- 
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