update makefile to support creating releases.

Makefile

@@ -9,7 +9,31 @@ WP_DST=$(BASE_DST)/blockchain
 TALKS=$(BASE_SRC)/talks
 TALKS_DST=$(BASE_DST)/talks
 
+VERSION=$(strip $(shell cat version))
+RELEASE_VERSION=v$(VERSION)
+GIT_BRANCH=$(strip $(shell git symbolic-ref --short HEAD))
+GIT_VERSION="$(strip $(shell git rev-parse --short HEAD))"
+GIT_LOG=$(shell git log `git describe --tags --abbrev=0`..HEAD --pretty="tformat:%h | %s [%an]\n" | sed "s/\"/'/g")
+RELEASE_BODY=release on branch __$(GIT_BRANCH)__\n\n$(GIT_LOG)
+RELEASE_DATA='{"tag_name": "$(RELEASE_VERSION)", "name": "$(RELEASE_VERSION)", "target_commitish": "master", "body": "$(RELEASE_BODY)"}'
+RELEASE_URL=https://api.github.com/repos/tyrchen/unchained/releases
 
 sync:
 	@$(GDRIVE_DOWNLOAD) $(WP) $(WP_DST)
 	@$(GDRIVE_DOWNLOAD) $(TALKS) $(TALKS_DST)
+
+
+release:
+ifeq ($(GITHUB_TOKEN),)
+	@echo "To generate a release, you need to define 'GITHUB_TOKEN' in your env."
+else
+	@echo "Create a release on $(RELEASE_VERSION)"
+	@git tag -a $(RELEASE_VERSION) -m "Release $(RELEASE_VERSION). Revision is: $(GIT_VERSION)"
+	@git push origin $(RELEASE_VERSION)
+	curl -s -d $(RELEASE_DATA) "$(RELEASE_URL)?access_token=$(GITHUB_TOKEN)"
+endif
+
+delete-release:
+	@echo "Delete a release on $(RELEASE_VERSION)"
+	@git tag -d $(RELEASE_VERSION) | true
+	@git push -f -d origin $(RELEASE_VERSION) | true

version

@@ -0,0 +1 @@
+1.0.0