Allow to choose confifile

backup.sh

 #!/bin/bash
 
 DIR=$(realpath $(dirname $0))
+if [ ! -z "$1" ]; then
+   conf_file=$1
+   shift
+fi
 source $DIR/inc.sh
 
 exit_on_fail(){

clear_backup.sh

 #!/bin/bash
 
 DIR=$(realpath $(dirname $0))
+if [ ! -z "$1" ]; then
+   conf_file=$1
+   shift
+fi
 source $DIR/inc.sh
 
 export PASSPHRASE="$encpass"

inc.sh

 #!/bin/bash
 
 DIR=$(realpath $(dirname $0))
-source $DIR/.env
+if [ -z "$conf_file" ]; then
+    conf_file="$DIR/.env"
+fi
+source $conf_file
 
 # Exit the script and sendmail
 # $1 : exit code

restore_file.sh

 #!/bin/bash
 DIR=$(realpath $(dirname $0))
-source $DIR/inc.sh
-
-if [ -z "$2" ]; then
-    echo "Usage $0 <restore_path> <destination_path> [timeago]"
+usage(){
+    echo "Usage $0 [options] <restore_path> <destination_path>"
     echo "restore_path      :   path to restore without leading slash"
     echo "destination_path  :   path to download the file(s), duplicity will not override existing files"
-    echo "timeago           :   optionnal : the age of the version we want to restore, for instance 6D for 6 days ago"
+    echo "options"
+    echo "    -t timeago    :   the age of the version we want to restore, for instance 6D for 6 days ago"
+    echo "    -c file       :   config_file to use"
+}
+
+while getopts "t:c:h" arg; do
+    case ${arg} in
+        h)
+            usage
+            exit 0
+            ;;
+        t)
+            delay="-t $OPTARG"
+            ;;
+        c)
+            conf_file=$OPTARG
+            ;;
+    esac
+done
+restore_path=${@:$OPTIND:1}
+destination_path=${@:$OPTIND+1:1}
+
+if [ -z "$destination_path" ]; then
+    usage
     exit 1
 fi
 
-if [ ! -z "$3" ]; then
-    delay="-t $3"
-fi
+source $DIR/inc.sh
 
 export PASSPHRASE="$encpass"
 export FTP_PASSWORD="$ftppass"
 
-/usr/bin/duplicity --file-to-restore $delay "$1" ftp://$user@$host/$remotedir/ "$2"
+/usr/bin/duplicity --file-to-restore $delay "$restore_path" ftp://$user@$host/$remotedir/ "$destination_path"
 
 unset PASSPHRASE
 unset FTP_PASSWORD