Handle errors

src/freedombone

       mkdir -p $GOPATH
   fi
   go get -u github.com/gpmgo/gopm
+  if [ ! "$?" = "0" ]; then
+      exit 479832
+  fi
 
   # add a gogs user account
   adduser --disabled-login --gecos 'Gogs' git
 
   # clone the repo
-  mkdir -p $GOPATH/src/github.com/gogits
+  if [ ! -d $GOPATH/src/github.com/gogits ]; then
+      mkdir -p $GOPATH/src/github.com/gogits
+  fi
   cd $GOPATH/src/github.com/gogits
   git clone https://github.com/gogits/gogs.git
+  if [ ! "$?" = "0" ]; then
+      exit 78654
+  fi
   cd gogs
 
   # install
   go get ./...
   go build
+  if [ ! "$?" = "0" ]; then
+      exit 546750
+  fi
 
   echo '#! /bin/sh' > /etc/init.d/gogs
   echo '### BEGIN INIT INFO' >> /etc/init.d/gogs