feat: Release and pre-release pipelines with publish script (#224)

Pipelines for release and pre-release on merges to master and dev respectively. Dev branch will release a beta to NPM and Master will release a patch to NPM

Resolves [AB#588]

pipelines/publish-prerelease.yml

@@ -0,0 +1,43 @@
+trigger:
+  branches:
+    include:
+    - dev
+pr: none
+
+variables:
+- group: npm-release-credentials
+
+pool:
+  vmImage: 'ubuntu-latest'
+
+steps:
+- task: NodeTool@0
+  displayName: 'Use Node 10.x'
+  inputs:
+    versionSpec: 10.x
+
+- checkout: self
+  clean: true
+  persistCredentials: true
+  fetchDepth: 1
+
+- task: Bash@3
+  name: BumpNpmVersion
+  displayName: Bump NPM Prerelease Version
+  inputs:
+    targetType: filePath
+    filePath: ./scripts/version.sh
+    arguments: 'serverless/serverless-azure-functions'
+  env:
+    NPM_TOKEN: $(NPM_TOKEN)
+    GITHUB_ACCESS_TOKEN: $(GITHUB_ACCESS_TOKEN)
+    SOURCE_BRANCH: $(Build.SourceBranch)
+
+- task: Bash@3
+  displayName: 'Publish serverless-azure-functions to NPM'
+  inputs:
+    targetType: filePath
+    filePath: ./scripts/publish.sh
+    arguments: 'prerelease'
+  env:
+    NPM_TOKEN: $(NPM_TOKEN)

pipelines/publish-release.yml

@@ -0,0 +1,26 @@
+trigger: none
+
+pool:
+  vmImage: 'ubuntu-latest'
+
+variables:
+- group: npm-release-credentials
+
+steps:
+- task: NodeTool@0
+  displayName: 'Use Node 10.x'
+  inputs:
+    versionSpec: 10.x
+
+- checkout: self
+  clean: true
+  persistCredentials: true
+  fetchDepth: 1
+
+- task: Bash@3
+  displayName: 'Publish serverless-azure-functions to NPM'
+  inputs:
+    targetType: filePath
+    filePath: ./scripts/publish.sh
+  env:
+    NPM_TOKEN: $(NPM_TOKEN)

scripts/publish.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -eo pipefail
+
+$(pwd)/scripts/build.sh
+
+# NOTE: auth is taken care of via NPM_TOKEN env variable
+if [ -z "$1" ]; then
+  echo "Publishing 'latest' to NPM...";
+  npm publish
+else
+  echo "Publishing 'prerelease' to NPM...";
+  npm publish --tag=beta
+fi

scripts/version.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+set -euo pipefail
+
+# Environment Variables Needed:
+# SOURCE_BRANCH
+# GITHUB_ACCESS_TOKEN
+
+PACKAGE_NAME=$1
+NPM_RELEASE_TYPE=${2-"prerelease"}
+
+# Get full branch name excluding refs/head from the env var SOURCE_BRANCH
+SOURCE_BRANCH_NAME=${SOURCE_BRANCH/refs\/heads\/}
+
+# Configure git to commit as SLS Azure Functions Service Account
+echo "Configuring git to use service account..."
+git config --local user.email "Serverless Azure Functions"
+git config --local user.name "sls-az@microsoft.com"
+
+git pull origin ${SOURCE_BRANCH_NAME}
+git checkout ${SOURCE_BRANCH_NAME}
+echo "Checked out branch: ${SOURCE_BRANCH_NAME}"
+
+NPM_VERSION=`npm version ${NPM_RELEASE_TYPE} -m "release: Update ${NPM_RELEASE_TYPE} version to %s ***NO_CI***"`
+echo "Set NPM version to: ${NPM_VERSION}"
+
+SHA=`git rev-parse HEAD`
+
+git remote add authOrigin https://${GITHUB_ACCESS_TOKEN}@github.com/serverless/serverless-azure-functions.git
+git push authOrigin ${SOURCE_BRANCH_NAME} --tags
+
+echo "Pushed new tag: ${PACKAGE_NAME}-${NPM_VERSION} @ SHA: ${SHA:0:8}"