data/scripts: remove some hardcoded paths

Origin commit data
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Branch: ni/coolstream
Commit: 93ca7b0ef1
Author: vanhofen <vanhofen@gmx.de>
Date: 2020-11-26 (Thu, 26 Nov 2020)

Origin message was:
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- data/scripts: remove some hardcoded paths

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No further description and justification available within origin commit message!

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This commit was generated by Migit

data/scripts/backup_flash.sh.in

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+. /etc/init.d/globals
+
+RES=""
+VAR="/var/"
+USRF="@CONFIGDIR@/tobackup.conf"
+BAKF="/var/backup_flash.tar.gz"
+
+TOBACKUP=""
+
+SHOWINFO "backup to ${BAKF} ..."
+
+if [ -e "${USRF}" ]; then
+	TOBACKUP="$TOBACKUP ${USRF}"
+	while read i
+		do [ "${i:0:1}" = "#" ] || TOBACKUP="$TOBACKUP ${i%%#*}"
+		done < $USRF
+fi
+
+# check existence and skip files in /var
+for i in $TOBACKUP; do
+	if [ -e "$i" -a ${i:0:${#VAR}} != ${VAR} ]; then
+		SHOWINFO "add  $i"
+		RES="$RES $i"
+	else
+		SHOWINFO "skip $i"
+	fi
+done
+
+TOBACKUP=$(echo $RES)
+
+tar -czf "${BAKF}" $TOBACKUP 2>&1 >/dev/null
+
+SHOWINFO "done."