* first action! (#1)

node_modules/semver-diff/index.js

@@ -0,0 +1,27 @@
+'use strict';
+var semver = require('semver');
+
+module.exports = function (a, b) {
+	if (semver.gt(a, b)) {
+		return null;
+	}
+
+	a = semver.parse(a);
+	b = semver.parse(b);
+
+	for (var key in a) {
+		if (key === 'major' || key === 'minor' || key === 'patch') {
+			if (a[key] !== b[key]) {
+				return key;
+			}
+		}
+
+		if (key === 'prerelease' || key === 'build') {
+			if (JSON.stringify(a[key]) !== JSON.stringify(b[key])) {
+				return key;
+			}
+		}
+	}
+
+	return null;
+};

node_modules/semver-diff/license

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+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/semver-diff/package.json

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+{
+  "_from": "semver-diff@^2.0.0",
+  "_id": "semver-diff@2.1.0",
+  "_inBundle": false,
+  "_integrity": "sha1-S7uEN8jTfksM8aaP1ybsbWRdbTY=",
+  "_location": "/semver-diff",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "semver-diff@^2.0.0",
+    "name": "semver-diff",
+    "escapedName": "semver-diff",
+    "rawSpec": "^2.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^2.0.0"
+  },
+  "_requiredBy": [
+    "/update-notifier"
+  ],
+  "_resolved": "https://registry.npmjs.org/semver-diff/-/semver-diff-2.1.0.tgz",
+  "_shasum": "4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36",
+  "_spec": "semver-diff@^2.0.0",
+  "_where": "/home/shimataro/projects/actions/ssh-key-action/node_modules/update-notifier",
+  "author": {
+    "name": "Sindre Sorhus",
+    "email": "sindresorhus@gmail.com",
+    "url": "http://sindresorhus.com"
+  },
+  "bugs": {
+    "url": "https://github.com/sindresorhus/semver-diff/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "semver": "^5.0.3"
+  },
+  "deprecated": false,
+  "description": "Get the diff type of two semver versions: 0.0.1 0.0.2 → patch",
+  "devDependencies": {
+    "mocha": "*"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "homepage": "https://github.com/sindresorhus/semver-diff#readme",
+  "keywords": [
+    "semver",
+    "version",
+    "semantic",
+    "diff",
+    "difference"
+  ],
+  "license": "MIT",
+  "name": "semver-diff",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/sindresorhus/semver-diff.git"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "version": "2.1.0"
+}

node_modules/semver-diff/readme.md

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+# semver-diff [![Build Status](https://travis-ci.org/sindresorhus/semver-diff.svg?branch=master)](https://travis-ci.org/sindresorhus/semver-diff)
+
+> Get the diff type of two [semver](https://github.com/isaacs/node-semver) versions: `0.0.1 0.0.2` → `patch`
+
+
+## Install
+
+```sh
+$ npm install --save semver-diff
+```
+
+
+## Usage
+
+```js
+var semverDiff = require('semver-diff');
+
+semverDiff('1.1.1', '1.1.2');
+//=> 'patch'
+
+semverDiff('0.0.1', '1.0.0');
+//=> 'major'
+
+semverDiff('0.0.1', '0.1.0');
+//=> 'minor'
+
+semverDiff('0.0.1-foo', '0.0.1-foo.bar');
+//=> 'prerelease'
+
+semverDiff('0.1.0', '0.1.0+foo');
+//=> 'build'
+
+semverDiff('0.0.1', '0.0.1');
+//=> null
+
+semverDiff('0.0.2', '0.0.1');
+//=> null
+```
+
+
+## API
+
+### semverDiff(versionA, versionB)
+
+Returns the difference type between two semver versions, or `null` if they're identical or the second one is lower than the first.
+
+Possible values: `'major'`, `'minor'`, `'patch'`, `'prerelease'`, `'build'`, `null`.
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)