Adjust scanelf to ignore local libs

Author: yosifkit

20/alpine/Dockerfile

@@ -39,13 +39,12 @@ RUN set -xe \
 	&& find /usr/local -name src | xargs -r find | xargs rmdir -vp || true \
 	&& scanelf --nobanner -E ET_EXEC -BF '%F' --recursive /usr/local | xargs -r strip --strip-all \
 	&& scanelf --nobanner -E ET_DYN -BF '%F' --recursive /usr/local | xargs -r strip --strip-unneeded \
-	&& runDeps=$( \
-		scanelf --needed --nobanner --recursive /usr/local \
-			| awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
+	&& runDeps="$( \
+		scanelf --needed --nobanner --format '%n#p' --recursive /usr/local \
+			| tr ',' '\n' \
 			| sort -u \
-			| xargs -r apk info --installed \
-			| sort -u \
-	) \
+			| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+	)" \
 	&& apk add --virtual .erlang-rundeps $runDeps lksctp-tools \
 	&& apk del .fetch-deps .build-deps
 

master/alpine/Dockerfile

@@ -40,13 +40,12 @@ RUN set -xe \
 		/usr/local/lib/erlang/lib/*/lib/lib*.a \
 	&& scanelf --nobanner -E ET_EXEC -BF '%F' --recursive /usr/local | xargs -r strip --strip-all \
 	&& scanelf --nobanner -E ET_DYN -BF '%F' --recursive /usr/local | xargs -r strip --strip-unneeded \
-	&& runDeps=$( \
-		scanelf --needed --nobanner --recursive /usr/local \
-			| awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
+	&& runDeps="$( \
+		scanelf --needed --nobanner --format '%n#p' --recursive /usr/local \
+			| tr ',' '\n' \
 			| sort -u \
-			| xargs -r apk info --installed \
-			| sort -u \
-	) \
+			| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+	)" \
 	&& apk add --virtual .erlang-rundeps lksctp-tools $runDeps \
 	&& apk del .fetch-deps .build-deps