script: function jack_env (#76)

* script: function jack_env

Added a function that detects how much RAM it's on the system and exports it on JACK_SERVER_VM_ARGUMENTS.
The amount of RAM that will be set it's physical GB amount minus 1GB,
unless there is more than 16GB RAM

Author: phhusson

build-dakkar.sh

@@ -13,6 +13,7 @@ elif [[ $(uname -s) = "Linux" ]];then
 fi
 
 ## handle command line arguments
+read -p "Do you want to sync? " choice 
 
 function help() {
     cat <<EOF
@@ -290,6 +291,13 @@ function build_variant() {
     cp "$OUT"/system.img release/"$rom_fp"/system-"$2".img
 }
 
+function jack_env() {
+    RAM=$(free | awk '/^Mem:/{ printf("%0.f", $2/(1024^2))}') #calculating how much RAM (wow, such ram)
+    if [[ "$RAM" -lt 16 ]];then #if we're poor guys with less than 16gb
+	export JACK_SERVER_VM_ARGUMENTS="-Dfile.encoding=UTF-8 -XX:+TieredCompilation -Xmx"$((RAM -1))"G"
+    fi
+}
+
 parse_options "$@"
 get_rom_type "$@"
 get_variants "$@"
@@ -299,12 +307,15 @@ if [[ -z "$mainrepo" || ${#variant_codes[*]} -eq 0 ]]; then
     exit 1
 fi
 
+if [[ $choice == *"y"* ]];then
 init_release
 init_main_repo
 init_local_manifest
 init_patches
 sync_repo
+fi
 patch_things
+jack_env
 
 . build/envsetup.sh