Add release script (#17)

Signed-off-by: Prasad Ghangal <[email protected]>

.release

@@ -0,0 +1 @@
+release=v0.0.0

hack/release.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+
+set -o errexit
+set -e
+
+version=$(cut -d'=' -f2- .release)
+if [[ -z ${version} ]]; then
+    echo "Invalid version set in .release"
+    exit 1
+fi
+
+
+if [[ -z ${GITHUB_TOKEN} ]]; then
+    echo "GITHUB_TOKEN not set. Usage: GITHUB_TOKEN=<TOKEN> ./hack/release.sh"
+    exit 1
+fi
+
+echo "Publishing release ${version}"
+
+generate_changelog() {
+    local version=$1
+
+    # generate changelog from github
+    github_changelog_generator infracloudio/msbotbuilder-go -t ${GITHUB_TOKEN} --future-release ${version} -o CHANGELOG.md
+    sed -i '$d' CHANGELOG.md
+}
+
+publish_release() {
+    local version=$1
+
+    # create gh release
+    gothub release \
+	   --user infracloudio \
+	   --repo msbotbuilder-go \
+	   --tag $version \
+	   --name "$version" \
+	   --description "$version"
+}
+
+make_release() {
+    local version=$1
+
+    # tag release
+    git add .release CHANGELOG.md
+    git commit -m "Release $version" ;
+    git tag $version ;
+    git push --tags origin develop;
+    echo 'Git tag pushed successfully' ;
+}
+
+generate_changelog $version
+make_release $version
+publish_release $version
+
+echo "=========================== Done ============================="
+echo "Congratulations!! Release ${version} published."
+echo "Don't forget to add changelog in the release description."
+echo "=============================================================="