Use fetch tool to download GitHub release artifacts

Dockerfile

@@ -8,6 +8,9 @@ RUN apt-get update && \
     --no-install-recommends && \
     rm -rf /var/lib/apt/lists/*
 
+ADD https://github.com/gruntwork-io/fetch/releases/download/v0.1.0/fetch_linux_amd64 /usr/local/bin/fetch
+RUN chmod +x /usr/local/bin/fetch
+
 COPY builder/ /builder/
 
 # build sd card image

Makefile

@@ -4,10 +4,10 @@ build:
 	docker build -t image-builder-rpi64 .
 
 sd-image: build
-	docker run --rm --privileged -v $(shell pwd):/workspace -v /boot:/boot -v /lib/modules:/lib/modules -e TRAVIS_TAG -e VERSION image-builder-rpi64
+	docker run --rm --privileged -v $(shell pwd):/workspace -v /boot:/boot -v /lib/modules:/lib/modules -e TRAVIS_TAG -e VERSION -e "GITHUB_OAUTH_TOKEN=${GITHUB_TOKEN}" image-builder-rpi64
 
 shell: build
-	docker run -ti --privileged -v $(shell pwd):/workspace -v /boot:/boot -v /lib/modules:/lib/modules -e TRAVIS_TAG -e VERSION image-builder-rpi64 bash
+	docker run -ti --privileged -v $(shell pwd):/workspace -v /boot:/boot -v /lib/modules:/lib/modules -e TRAVIS_TAG -e VERSION -e "GITHUB_OAUTH_TOKEN=${GITHUB_TOKEN}" image-builder-rpi64 bash
 
 test:
 	VERSION=dirty docker run --rm -ti --privileged -v $(shell pwd):/workspace -v /boot:/boot -v /lib/modules:/lib/modules -e TRAVIS_TAG -e VERSION image-builder-rpi64 bash -c "unzip /workspace/hypriotos-rpi-dirty.img.zip && rspec --format documentation --color /workspace/builder/test/*_spec.rb"

builder/build.sh

@@ -37,15 +37,25 @@ if [ ! -f "${ROOTFS_TAR_PATH}" ]; then
   wget -q -O "${ROOTFS_TAR_PATH}" "https://github.com/hypriot/os-rootfs/releases/download/${HYPRIOT_OS_VERSION}/${ROOTFS_TAR}"
 fi
 
-# # verify checksum of our root filesystem
+# verify checksum of our root filesystem
 echo "${ROOTFS_TAR_CHECKSUM} ${ROOTFS_TAR_PATH}" | sha256sum -c -
 
 # extract root file system
 tar xf "${ROOTFS_TAR_PATH}" -C "${BUILD_PATH}"
 
 # extract/add additional files
-wget -q -O - "https://github.com/DieterReuter/rpi-bootloader/releases/download/v$BOOTLOADER_BUILD/rpi-bootloader.tar.gz" | tar -xf - -C "${BUILD_PATH}"
-wget -q -O - "https://github.com/DieterReuter/rpi64-kernel/releases/download/v$KERNEL_BUILD/$KERNEL_VERSION-bee42-v8.tar.gz" | tar -xf - -C "${BUILD_PATH}"
+FILENAME=/workspace/rpi-bootloader.tar.gz
+if [ ! -f "$FILENAME" ]; then
+  fetch --repo="https://github.com/DieterReuter/rpi-bootloader" --tag="v$BOOTLOADER_BUILD" --release-asset="rpi-bootloader.tar.gz.sha256" /workspace
+  fetch --repo="https://github.com/DieterReuter/rpi-bootloader" --tag="v$BOOTLOADER_BUILD" --release-asset="rpi-bootloader.tar.gz" /workspace
+fi
+tar -xf "$FILENAME" -C "${BUILD_PATH}"
+FILENAME=/workspace/$KERNEL_VERSION-bee42-v8.tar.gz
+if [ ! -f "$FILENAME" ]; then
+  fetch --repo="https://github.com/DieterReuter/rpi64-kernel" --tag="v$KERNEL_BUILD" --release-asset="$KERNEL_VERSION-bee42-v8.tar.gz.sha256" /workspace
+  fetch --repo="https://github.com/DieterReuter/rpi64-kernel" --tag="v$KERNEL_BUILD" --release-asset="$KERNEL_VERSION-bee42-v8.tar.gz" /workspace
+fi
+tar -xf "$FILENAME" -C "${BUILD_PATH}"
 DOCKER_DEB="/workspace/resources/docker-engine_1.13.0~rc7-0~debian-jessie_arm64.deb"
 if [ -f "$DOCKER_DEB" ]; then
   cp $DOCKER_DEB "${BUILD_PATH}"/