#72 fix chowning (#125)

* #72 only chown once using new logic, rebase to alpine 3.9, increase make threads now that arm boxes are single threaded

* typo

root/etc/cont-init.d/30-config

@@ -13,7 +13,29 @@ mkdir -p \
         (cp /defaults/config /config/config)
 
 
-# permissions
-chown -R abc:abc \
-	/config \
-	/picons
+
+# function to randomly sample 10 files for their owner and only chown if not abc
+chowner () {
+files=(${1}/*)
+for i in {1..10}; do
+        user=$(stat -c '%U' $(printf "%s\n" "${files[RANDOM % ${#files[@]}]}"))
+        if [ "${user}" != "abc" ]; then
+                chown -R abc:abc ${1}
+                break
+        fi
+done
+}
+
+# permissions
+echo "Setting permissions"
+abc_dirs=( \
+/config \
+/picons \
+)
+for i in "${abc_dirs[@]}"; do
+        if [ "$(ls -A ${i})" ]; then
+                chowner ${i}
+        else
+                chown -R abc:abc ${i}
+        fi
+done