initial commit

scripts/envsubst-args.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+set -f
+
+sed -znE '/^([^=]+)=.*$/s,,\1,p' /proc/$$/environ \
+| sed -zE \
+    -e '/^_$/d' \
+    -e '/^ANGIE(|_BPF_MAPS)$/d' \
+    -e '/^__IEP_/d;/^IEP_$/d' \
+    -e '/^NGX_STATIC_/d' \
+    -e '/^ENVSUBST_/d' \
+    -e '/^J2CFG_/d' \
+| {
+	if [ -n "${ENVSUBST_EXCLUDE_REGEX:-}" ] ; then
+		grep -zEv -e "${ENVSUBST_EXCLUDE_REGEX}"
+	elif [ -n "${ENVSUBST_INCLUDE_REGEX:-}" ] ; then
+		grep -zE -e "${ENVSUBST_INCLUDE_REGEX}"
+	else
+		cat
+	fi
+} \
+| sort -zV \
+| xargs -0 -r printf '${%s} ' \
+| sed -zE 's/ $//'