From 0626efa7e8e8a46ef69dd54ec1fc1fe4302e02fb Mon Sep 17 00:00:00 2001
From: James Gregory <james@jagregory.com>
Date: Fri, 1 Sep 2017 22:01:20 +1000
Subject: [PATCH] Fixed Alpine compatibility (chmod) (#212)

---
 bin/_blackbox_common.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/bin/_blackbox_common.sh b/bin/_blackbox_common.sh
index 3f721f3..fcc37d8 100755
--- a/bin/_blackbox_common.sh
+++ b/bin/_blackbox_common.sh
@@ -408,8 +408,12 @@ function cp_permissions() {
       chmod $( stat -f '%p' "$1" | sed -e "s/^100//" ) "${@:2}"
       ;;
     Linux | CYGWIN* | MINGW* )
-      chmod --reference "$1" "${@:2}"
-      ;;
+      if [[ -e /etc/alpine-release ]]; then
+        chmod $( stat -c '%a' "$1" ) "${@:2}"
+      else
+        chmod --reference "$1" "${@:2}"
+      fi
+      ;; 
     * )
       echo 'ERROR: Unknown OS. Exiting. (cp_permissions)'
       exit 1