init

README.md

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+# versioning-action
+
+Action created for easier versioning in trunk-based flow
+
+Parameters:
+ - `github_info` - `github` context of build
+ - `gist_token` - Github personal API token with `gist` scope (acts like back-end)
+
+Outputs:
+ - step output `version`
+ - environment variable `VERSION` which will be available in flow

action.yml

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+name: Versioner
+
+inputs:
+  github_info:
+    required: true
+  gist_token:
+    required: true
+
+outputs:
+  version:
+    description: generated version
+
+runs:
+  using: 'node12'
+  main: 'app.js'

app.js

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+const { env } = process;
+
+const GITHUB_CONTEXT = JSON.parse(env.INPUT_GITHUB_INFO)
+const GIST_TOKEN = env.INPUT_GIST_TOKEN
+
+const { event_name: eventName } = GITHUB_CONTEXT;
+
+switch (eventName) {
+    case 'pull_request':
+        pullRequestAction(GITHUB_CONTEXT);
+}
+
+
+function pullRequestAction(context) {
+    console.log('This is PR : ', context.event.number);
+}