Add publish pipeline (#155)

Automate gem publish

Author: f-moya

.circleci/config.yml

@@ -1,4 +1,10 @@
 version: 2.0
+init: &init
+  run:
+    name: init
+    command: |
+      echo '. .circleci/shared.bash' >> "$BASH_ENV"
+
 jobs:
   test:
     environment:
@@ -19,8 +25,33 @@ jobs:
             - coverage
       - run: ./cc-test-reporter after-build --exit-code $? || echo "Send coverage skipped..."
 
+  publish:
+    machine: true
+    steps:
+      - checkout
+      - *init
+      - run:
+          name: Install Hub dependency
+          command: install_hub
+      - run:
+          name: Login on RubyGems
+          command: login_to_rubygems
+      - run:
+          name: Publish new version
+          command: |
+            if [ `git diff --quiet HEAD~ VERSION; echo $?` -eq 1 ]; then
+              publish_new_version
+            fi
+
 workflows:
   version: 2
   test:
     jobs:
       - test
+      - publish:
+          requires:
+            - test
+          filters:
+            branches:
+              only:
+                - master

.circleci/shared.bash

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+set -exuo pipefail
+
+VERSION=$(cat VERSION)
+
+function install_hub() {
+    sudo apt update && sudo apt install -y git wget
+    url="$(wget -qO- https://api.github.com/repos/github/hub/releases/latest | tr '"' '\n' | grep '.*/download/.*/hub-linux-amd64-.*.tgz')"
+    wget -qO- "$url" | sudo tar -xzvf- -C /usr/bin --strip-components=2 --wildcards "*/bin/hub"
+}
+
+function login_to_rubygems() {
+  mkdir -p "$HOME/.gem"
+  touch "$HOME/.gem/credentials"
+  chmod 0600 "$HOME/.gem/credentials"
+  printf -- "---\n:rubygems_api_key: %s\n" "$GEM_HOST_API_KEY" > "$HOME/.gem/credentials"
+}
+
+function tag_version() {
+  GITHUB_TOKEN="${GITHUB_TOKEN}" hub release create -m "v${VERSION}" "v${VERSION}"
+}
+
+
+function publish_new_version() {
+  set +x
+  # Build and push gem
+  gem build ./*.gemspec
+  gem push ./*.gem
+
+  # Create gh tag
+  tag_version
+
+  set -x
+}

VERSION

@@ -0,0 +1 @@
+1.11.4

codeclimate-services.gemspec

@@ -5,7 +5,7 @@ require "cc/services/version"
 
 Gem::Specification.new do |spec|
   spec.name = "codeclimate-services"
-  spec.version = CC::Services::VERSION
+  spec.version = CC::Services.version
   spec.authors = ["Bryan Helmkamp"]
   spec.email = ["bryan@brynary.com"]
   spec.summary = "Service classes for Code Climate"

lib/cc/services/version.rb

@@ -1,5 +1,9 @@
 module CC
   module Services
-    VERSION = "1.11.3".freeze
+    def version
+      path = File.expand_path("../../../../VERSION", __FILE__)
+      @version ||= File.read(path).strip
+    end
+    module_function :version
   end
 end