Add support for publishing built artifacts to Github Releases

.gitignore

@@ -1,3 +1,4 @@
+.github_publish
 .vagrant
 vagrant-ssh.conf
-output-macos/
+output-macos/

README.md

@@ -49,8 +49,31 @@ find the built artifacts in the **output** directory of your host:
 
 Then you may destroy the Vagrant machine with `vagrant destroy`.
 
+Publish to GitHub Releases
+--------------------------
+
+If you wish to publish the built artifacts to _GitHub Releases_, create a file
+named **.github_publish** in the project root before `vagrant up` with the
+following information:
+
+    GITHUB_USERNAME=<username>
+    GITHUB_REPOSITORY=<repository-name>
+    GITHUB_TOKEN=<github-api-token>
+    GITHUB_RELEASE_VERSION=<release-version>
+
+The _GitHub API Token_ should have `public_repo` scope for public repositories
+and `repo` scope for private repositories.
+
+    GITHUB_USERNAME=benhylau
+    GITHUB_REPOSITORY=mesh-router-builder
+    GITHUB_TOKEN=0123456789abcdef0123456789abcdef01234567
+    GITHUB_RELEASE_VERSION=v0.1
+
+After `make` completes, you can call `make publish` and all artifacts will be
+published to _Github Releases_ in your repository.
+
 macOS High Sierra
-------------------
+-----------------
 
 There is a known bug in macOS High Sierra that prevents Synced Folders from
 working. You will have to get the built artifacts manually before destroying the

bootstrap.sh

@@ -37,3 +37,8 @@ apt-get install -y nodejs
 # Copy build scripts from Synced Folder to Vagrant machine user home
 cp -r /vagrant/src/* /home/vagrant/
 chown -R vagrant:vagrant /home/vagrant/*
+
+# Load github release publishing configurations
+set -a
+. /vagrant/.github_publish 2>/dev/null || true
+set +a

src/Makefile

@@ -1,12 +1,28 @@
 #
-# Build all artifacts from each subdirectory
+# Build all artifacts from each subdirectory and optionally publish
 #
 
 PACKAGES_DIR = debian-packages
 IMAGES_DIR = mesh-orange-images
 
+PACKAGES_DIR = /vagrant/output/debian-packages
+IMAGES_DIR = /vagrant/output/mesh-orange-images
+PUBLISH_DIR = /tmp/publish
+
 build_images: build_packages
 	$(MAKE) -C $(IMAGES_DIR)
 
 build_packages:
 	$(MAKE) -C $(PACKAGES_DIR)
+
+publish:
+	rm -rf $(PUBLISH_DIR)
+	mkdir $(PUBLISH_DIR)
+	cp $(PACKAGES_DIR)/* $(PUBLISH_DIR)/
+	cp $(IMAGES_DIR)/* $(PUBLISH_DIR)/
+	go get -u github.com/tcnksm/ghr
+	go/bin/ghr \
+	  -username ${GITHUB_USERNAME} \
+	  -repository ${GITHUB_REPOSITORY} \
+	  -token ${GITHUB_TOKEN} \
+	  ${GITHUB_RELEASE_VERSION} $(PUBLISH_DIR)