From 94136d834c2cedf039509983901cbcd29cf4eb09 Mon Sep 17 00:00:00 2001
From: Matt Hillsdon <matt.hillsdon@microbit.org>
Date: Thu, 10 Oct 2019 11:18:11 +0100
Subject: [PATCH] Publish tags to NPM.

---
 .circleci/config.yml | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 5a34f89..9ec2126 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -31,9 +31,33 @@ jobs:
           paths: .
       - store_artifacts:
           path: ~/repo/dist
+  deploy:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: ~/repo
+      - run:
+          name: Configure registry auth
+          command: echo "//registry.npmjs.org/:_authToken=$NPM_AUTH_TOKEN" >> ~/repo/.npmrc
+      - run:
+          name: Publish package
+          # For now we only publish on tags here and assume the version number is already correct.
+          # If we change this then we need to automate updating the version number.
+          command: npm publish $(if [ -z "$CIRCLE_TAG" ]; then echo "--tag next"; fi)
 
 workflows:
   version: 2
-  test:
+  test-deploy:
     jobs:
-      - test_and_build
+      - test_and_build:
+          filters:
+            tags:
+              only: /^v.*/
+      - deploy:
+          requires:
+            - test_and_build
+          filters:
+            tags:
+              only: /^v.*/
+            branches:
+              ignore: /.*/