add flexibility using a variable at the start of the code, probably not the right way to insert variables?

sync

@@ -3,12 +3,17 @@
 # Upload changes from inside repository using GIN CLI
 # Works with submodules.
 # Assumes gin init was performed or the repository was downloaded via gin get
+rac = 0 
+# 0: get/keep all big files content
+# 1: keep big files uploaded from here, but do not download extra one 
+# 2: never get/keep big files here
 
 if (( $# > 0 )); then
     echo "This script takes no arguments"
     exit 1
 fi
 
+
 checkerror() {
     err=$1
     msg=$2
@@ -31,12 +36,20 @@ git submodule foreach gin commit .
 checkerror $? "Error occurred during 'gin commit'"
 git submodule foreach gin upload
 checkerror $? "Error occurred during 'gin upload'"
+if [[ rac > 1 ]]; then
+        git submodule foreach gin remove-content 
+        checkerror $? "Error occurred during 'gin remove-content'"
+    fi
+
 
 echo "Synchronising main repository"
 gin sync
 gin commit .
 gin upload
 
-# Uncomment the two lines below to download all large files
-# gin get-content .
-# checkerror $? "Error occurred during 'gin get-content'"
+# get annexed content 
+if [[ rac < 1 ]]; then
+        git submodule foreach gin get-content .
+        checkerror $? "Error occurred during 'gin get-content .'"
+    fi
+