Add support to specify version in \d.x notation

src/utils.ts

@@ -1,4 +1,6 @@
+import {IncomingMessage} from 'http';
 import * as fs from 'fs';
+import * as https from 'https';
 import * as path from 'path';
 import * as core from '@actions/core';
 
@@ -41,6 +43,45 @@ export async function getInput(
   }
 }
 
+/**
+ * Function to fetch an URL
+ *
+ * @param url
+ */
+export async function fetch(url: string): Promise<string> {
+  const fetch_promise: Promise<string> = new Promise(resolve => {
+    const req = https.get(url, (res: IncomingMessage) => {
+      res.setEncoding('utf8');
+      let body = '';
+      res.on('data', chunk => (body += chunk));
+      res.on('end', () => resolve(body));
+    });
+    req.end();
+  });
+  return await fetch_promise;
+}
+
+/**
+ * Function to parse PHP version.
+ *
+ * @param version
+ */
+export async function parseVersion(version: string): Promise<string> {
+  const manifest =
+    'https://raw.githubusercontent.com/shivammathur/setup-php/develop/src/configs/php-versions.json';
+  switch (true) {
+    case /^(latest|\d+\.x)$/.test(version):
+      return JSON.parse(await fetch(manifest))[version];
+    default:
+      switch (true) {
+        case version.length > 1:
+          return version.slice(0, 3);
+        default:
+          return version + '.0';
+      }
+  }
+}
+
 /**
  * Async foreach loop
  *