Respect proxy settings in build scripts

Respect proxy settings to build Fabric behind a proxy.
Set environment values http_proxy, HTTP_PROXY, https_proxy or
HTTPS_PROXY and execute `make peer`.

This patch fixes FAB-308.
To build docker javaenv-image, the Internet access is needed for wget
Gradle distribution. So we need to pass proxy configurations by
build arg to Docker.

Additionally, in core/chaincode/shim/java/build.gradle, Gradle will get
com.google.protobuf plugin from the Internet during build process.
Because this process is executed in docker-build, defining JAVA_OPTS in
the host, which execute docker-build, is no effect.

Signed-off-by: Namiki Yuta <y.namiki@gmail.com>
Change-Id: I226c115f49ec242b79ef56a34c03012fb11f78c6

Makefile

@@ -63,6 +63,31 @@ ifneq ($(OS),Darwin)
 DOCKER_FLAGS=--user=$(shell id -u)
 endif
 
+ifneq ($(http_proxy),)
+DOCKER_ARGS_PROXY+=--build-arg http_proxy=$(http_proxy)
+DOCKER_FLAGS+=-e http_proxy=$(http_proxy)
+endif
+ifneq ($(https_proxy),)
+DOCKER_ARGS_PROXY+=--build-arg https_proxy=$(https_proxy)
+DOCKER_FLAGS+=-e https_proxy=$(https_proxy)
+endif
+ifneq ($(HTTP_PROXY),)
+DOCKER_ARGS_PROXY+=--build-arg HTTP_PROXY=$(HTTP_PROXY)
+DOCKER_FLAGS+=-e HTTP_PROXY=$(HTTP_PROXY)
+endif
+ifneq ($(HTTPS_PROXY),)
+DOCKER_ARGS_PROXY+=--build-arg HTTPS_PROXY=$(HTTPS_PROXY)
+DOCKER_FLAGS+=-e HTTPS_PROXY=$(HTTPS_PROXY)
+endif
+ifneq ($(no_proxy),)
+DOCKER_ARGS_PROXY+=--build-arg no_proxy=$(no_proxy)
+DOCKER_FLAGS+=-e no_proxy=$(no_proxy)
+endif
+ifneq ($(NO_PROXY),)
+DOCKER_ARGS_PROXY+=--build-arg NO_PROXY=$(NO_PROXY)
+DOCKER_FLAGS+=-e NO_PROXY=$(NO_PROXY)
+endif
+
 DRUN = docker run -i --rm $(DOCKER_FLAGS) \
 	-v $(abspath .):/opt/gopath/src/$(PKGNAME) \
 	-w /opt/gopath/src/$(PKGNAME)
@@ -196,7 +221,7 @@ build/image/%/.dummy: Makefile build/image/%/payload
 		| sed -e 's/_BASE_TAG_/$(BASE_DOCKER_TAG)/g' \
 		| sed -e 's/_TAG_/$(DOCKER_TAG)/g' \
 		> $(@D)/Dockerfile
-	docker build -t $(PROJECT_NAME)-$(TARGET) $(@D)
+	docker build $(DOCKER_ARGS_PROXY) -t $(PROJECT_NAME)-$(TARGET) $(@D)
 	docker tag $(PROJECT_NAME)-$(TARGET) $(PROJECT_NAME)-$(TARGET):$(DOCKER_TAG)
 	@touch $@
 

core/chaincode/shim/java/javabuild.sh

@@ -19,6 +19,21 @@
 set -e
 PARENTDIR=$(pwd)	
 
+function getProxyHost {
+  ADDR=${1#*://}
+  echo ${ADDR%:*}
+}
+
+function getProxyPort {
+  ADDR=${1#*://}
+  echo ${ADDR#*:}
+}
+
+[ -n "$http_proxy" ] && JAVA_OPTS="$JAVA_OPTS -Dhttp.proxyHost=$(getProxyHost $http_proxy) -Dhttp.proxyPort=$(getProxyPort $http_proxy)"
+[ -n "$https_proxy" ] && JAVA_OPTS="$JAVA_OPTS -Dhttps.proxyHost=$(getProxyHost $https_proxy) -Dhttps.proxyPort=$(getProxyPort $https_proxy)"
+[ -n "$HTTP_PROXY" ] && JAVA_OPTS="$JAVA_OPTS -Dhttp.proxyHost=$(getProxyHost $HTTP_PROXY) -Dhttp.proxyPort=$(getProxyPort $HTTP_PROXY)"
+[ -n "$HTTPS_PROXY" ] && JAVA_OPTS="$JAVA_OPTS -Dhttps.proxyHost=$(getProxyHost $HTTPS_PROXY) -Dhttps.proxyPort=$(getProxyPort $HTTPS_PROXY)"
+export JAVA_OPTS
 
 gradle -q -b ${PARENTDIR}/core/chaincode/shim/java/build.gradle clean
 gradle -q -b ${PARENTDIR}/core/chaincode/shim/java/build.gradle build