feat: add target parameter, make it major by default (#47)

Author: fahric

.github/workflows/ci.yml

@@ -1,7 +1,19 @@
 name: CI
-on: pull_request
+on: [push, pull_request]
 jobs:
-  approve:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2.3.4
+      - uses: actions/setup-node@v2.1.5
+        with:
+          node-version: '14.x'
+      - run: npm ci
+      - run: npm run lint
+      - run: npm run test
+
+  automerge:
+    needs: build
     runs-on: ubuntu-latest
     steps:
       - uses: fastify/github-action-merge-dependabot@main

.gitignore

@@ -1,2 +1,4 @@
 .vscode
 node_modules/
+.idea
+.nyc_output

.prettierrc

@@ -1,4 +1,5 @@
 {
   "singleQuote": true,
-  "semi": false
+  "semi": false,
+  "arrowParens": "avoid"
 }

.taprc

@@ -0,0 +1,5 @@
+ts: false
+jsx: false
+flow: false
+check-coverage: false
+coverage: true

README.md

@@ -33,6 +33,15 @@ _Optional_ An arbitrary message that you'd like to comment on the PR after it ge
 
 _Optional_ A custom url where the external API which is delegated the task of approving and merging responds.
 
+### `target`
+
+_Optional_ A flag to only auto-merge updates based on Semantic Versioning. Default to `major` merge. Possible options are:
+
+`major, premajor, minor, preminor, patch, prepatch, or prerelease`
+
+For more details on how semantic version difference calculated please see [semver](https://www.npmjs.com/package/semver) package
+
+
 ## Example usage
 
 ### Basic example

action.yml

@@ -23,6 +23,10 @@ inputs:
     description: 'Url of the API where the application is running'
     required: false
     default: 'https://fastify-dependabot-merge-app-5uewp47fja-uc.a.run.app/'
+  target:
+    description: 'Auto-merge on major, minor, patch updates based on Semantic Versioning'
+    required: false
+    default: 'major'
 runs:
   using: 'node12'
   main: 'dist/index.js'