done some work on the new option handler

sshbackup_v0.3.sh

@@ -7,7 +7,7 @@
 # ************************************* # 
 
 #  ****  config section  ****
-version="0.3.0"
+version="0.3"
 author="david@socialnerds.org"
 
 configfile="$HOME/.sshbackup"
@@ -24,7 +24,7 @@ logfile="/var/log/sshbackup.log"
 sshkeyfile="$HOME/.ssh/id_rsa"
 
 config=0
-sources=0
+sshkey=0
 options=$*
 
 
@@ -49,7 +49,7 @@ usage()
     echo "   -h, --help                    show this message"
     echo "   -v, --version                 show version information"
     echo "   -c, --config <config file>    alternate config file"
-    echo "   -s, --sources <sources file>  use sources from file instead of cmd"
+    echo "   -s, --sshkey <sshkeyfile>     use alternate sshkeyfile"
     echo
 
 }
@@ -57,8 +57,6 @@ usage()
 version()
 {
 
-    echo
-    echo "sshbackup"
     echo
     echo -e "vesion: \033[1;37m$version\033[0m"
     echo "author: $author"
@@ -66,6 +64,28 @@ version()
 
 }
 
+preflight()
+{
+    if [ -r $sshkeyfile ]; then
+        #echo "sshkeyfile found"
+        :
+    else
+        #am i being run by cron?
+        tty -s
+        if [ $? -eq 0 ]; then
+            echo "im running in interactive mode"
+            echo "you have no ssh key configured."
+            echo "do you want to create a new keypair? [y] "
+        else
+            echo "aborting mission. no sshkey found."
+            exit 1
+        fi
+
+    fi
+
+
+}
+
 
 #  ****  start of script  ****
 
@@ -92,24 +112,42 @@ for option in $options; do
         -c|--config)
             config=1
             ;;
-        -s|--sources)
-            sources=1
+        -s|--sshkey)
+            sshkey=1
             ;;
         *)
             if [ $config -eq 1 ]; then
-                configfile=$option
-                config=0
-            elif [ $sources -eq 1 ]; then
-                sourcefile=$option
-                sources=0
+                if [ -r $option ]; then
+                    configfile=$option
+                    config=0
+                else
+                    echo "aborting mission. cannot read configfile. [$option]"
+                    exit 1
+                fi
+            elif [ $sshkey -eq 1 ]; then
+                if [ -r $option ]; then
+                    sshkeyfile=$option
+                    sshkey=0
+                else
+                    echo "aborting mission. cannot read sshkeyfile. [$option]"
+                    exit 1
+                fi
             else
-                if [ -z "${option//[0-9]/}" ]; then
-                    versions=$option
+                if [[ $option =~ ^-.* ]]; then
+                    echo "aborting mission. unknown option given. [$option]"
+                    exit 1
+                #TODO: what if source or dest is a number?
+                elif [ -z "${option//[0-9]/}" ]; then
+                    if [ -z $versions ]; then
+                        versions=$option
+                    fi
                 else
                     if [ -z $sourcepath ]; then
                         sourcepath=$option
                     else
-                        destinationpath=$option
+                        if [ -z $destinationpath ]; then
+                            destinationpath=$option
+                        fi
                     fi
                 fi
             fi
@@ -117,11 +155,17 @@ for option in $options; do
     esac
 done
 
-echo "sourcefile: $sourcefile"
-echo "configfile: $configfile"
-echo "versions: $versions"
-echo "sourcepath: $sourcepath"
-echo "destinationpath: $destinationpath"
+if [ -z $sourcepath ]; then
+    echo "aborting mission. no source path given."
+    exit 1
+elif [ -z $destinationpath ]; then
+    destinationpath="."
+fi
+
+source $configfile
+
+#running preflight checks
+preflight