feat(cli): add GitHub Actions support (#10)

Author: Michał Miszczyszyn

packages/core/src/services/github.js

@@ -0,0 +1,17 @@
+// https://docs.gitlab.com/ce/ci/variables/README.html
+
+export function detect() {
+  return !!process.env.GITHUB_ACTIONS
+}
+
+export function config() {
+  return {
+    name: 'GitHub Actions',
+    service: 'github',
+    build: process.env.GITHUB_RUN_ID,
+    commit: process.env.GITHUB_SHA,
+    branch: process.env.GITHUB_HEAD_REF || (process.env.GITHUB_REF && process.env.GITHUB_REF.split('/')[2]),
+    root: process.env.GITHUB_WORKSPACE,
+    slug: process.env.GITHUB_REPOSITORY,
+  }
+}

packages/core/src/services/index.js

@@ -5,6 +5,7 @@ import * as circle from './circle'
 import * as cirrus from './cirrus'
 import * as codeship from './codeship'
 import * as drone from './drone'
+import * as github from './github'
 import * as gitlab from './gitlab'
 import * as heroku from './heroku'
 import * as jenkins from './jenkins'
@@ -28,6 +29,7 @@ export default [
   cirrus,
   codeship,
   drone,
+  github,
   gitlab,
   jenkins,
   semaphore,