preparing the staging area once more for preparing fiels

cut down on final image size by auto-cleaning as much of the repository as possible

.dockerignore

@@ -24,5 +24,4 @@
 **
 
 # Except the script directory
-!scripts/preparation.*
-!scripts/build.*
+!scripts/preparation*

Dockerfile

@@ -39,7 +39,7 @@ RUN apt-get update && apt-get install -y \
 ADD scripts/ /root/sol2-scripts
 
 RUN mkdir -p /root/build-sol2/Debug /root/build-sol2/Release
-RUN chmod +x /root/sol2-scripts/preparation.linux.sh /root/sol2-scripts/run.linux.sh
+RUN chmod +x /root/sol2-scripts/preparation.linux.sh
 
 VOLUME /root/sol2
 #ADD . /root/sol2

scripts/preparation.linux.sh

@@ -103,6 +103,8 @@ else
 fi
 
 apt-get -y autoremove
+apt-get -y clean
+apt-get -y autoclean
 
 # show the tool and compiler versions we're using
 echo "=== Compiler and tool variables ==="