From ce467c91bade32f26e2ea204459728dc69679268 Mon Sep 17 00:00:00 2001
From: IZ7BOJ <38103662+IZ7BOJ@users.noreply.github.com>
Date: Thu, 5 Apr 2018 14:46:22 +0200
Subject: [PATCH] Update DMRIDUpdate.sh

In case of dmr-marc.net server unresponsive, DMRIDs.dat is not overwritten with an empty file.
---
 linux/DMRIDUpdate.sh | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/linux/DMRIDUpdate.sh b/linux/DMRIDUpdate.sh
index eac4177..3dd8a8f 100755
--- a/linux/DMRIDUpdate.sh
+++ b/linux/DMRIDUpdate.sh
@@ -48,8 +48,9 @@
 #
 #                              CONFIGURATION
 #
-# Full path to DMR ID file
-DMRIDFILE=/path/to/DMR/ID/file/DMRIds.dat
+# Full path to DMR ID file, without final slash
+DMRIDPATH=/path/to/DMR/ID/file
+DMRIDFILE=${DMRIDPATH}/DMRIds.dat
 #
 # How many DMR ID files do you want backed up (0 = do not keep backups)
 DMRFILEBACKUP=1
@@ -90,7 +91,14 @@ then
 fi
 
 # Generate new file
-curl 'http://dmr-marc.net/cgi-bin/trbo-database/datadump.cgi?table=users&format=csv&header=0' 2>/dev/null | sed -e 's/\t//g' | awk -F"," '/,/{gsub(/ /, "", $2); printf "%s\t%s\t%s\n", $1, $2, $3}' | sed -e 's/\(.\) .*/\1/g' > ${DMRIDFILE}
+curl 'http://dmr-marc.net/cgi-bin/trbo-database/datadump.cgi?table=users&format=csv&header=0' 2>/dev/null | sed -e 's/\t//g' | awk -F"," '/,/{gsub(/ /, "", $2); printf "%s\t%s\t%s\n", $1, $2, $3}' | sed -e 's/\(.\) .*/\1/g' > ${DMRIDPATH}/DMRIds.tmp
+if [ -s ${DMRIDPATH}/DMRIds.tmp ]
+then
+   mv ${DMRIDPATH}/DMRIds.tmp ${DMRIDFILE}
+else
+   echo " ERROR during file update "
+   rm ${DMRIDPATH}/DMRIds.tmp
+fi
 
 # Restart MMDVMHost
 eval ${RESTARTCOMMAND}