feat: Add functions to retrieve simctl and xcode versions (#51)

Closes #34.

Author: dpogue

simctl.js

@@ -42,6 +42,22 @@ module.exports = {
     return result
   },
 
+  simctl_version: function () {
+    const res = spawnSync('xcrun', ['simctl', '--version'])
+    const versionMatch = /CoreSimulator-(.*)/.exec(res.stdout)
+    const versionString = versionMatch[1]
+
+    return versionString.split('.').map((v) => parseInt(v, 10))
+  },
+
+  xcode_version: function () {
+    const res = spawnSync('xcodebuild', ['-version'])
+    const versionMatch = /Xcode (.*)/.exec(res.stdout)
+    const versionString = versionMatch[1]
+
+    return versionString.split('.').map((v) => parseInt(v, 10))
+  },
+
   create: function (name, deviceTypeId, runtimeId) {
     return spawnSync('xcrun', ['simctl', 'create', name, deviceTypeId, runtimeId])
   },

test/simctl.js

@@ -25,6 +25,7 @@ THE SOFTWARE.
 const test = require('node:test')
 const childProcess = require('child_process')
 
+const originalSpawnSync = childProcess.spawnSync
 const spawnMock = test.mock.method(childProcess, 'spawnSync')
 
 const simctl = require('../simctl')
@@ -35,6 +36,8 @@ test('exports', (t) => {
 
   t.assert.equal(simctl.extensions, SimCtlExtensions)
   t.assert.equal(typeof simctl.check_prerequisites, 'function')
+  t.assert.equal(typeof simctl.simctl_version, 'function')
+  t.assert.equal(typeof simctl.xcode_version, 'function')
   t.assert.equal(typeof simctl.create, 'function')
   t.assert.equal(typeof simctl.del, 'function')
   t.assert.equal(typeof simctl.erase, 'function')
@@ -75,3 +78,25 @@ test('check_prerequisites success', (t) => {
   const retObj = simctl.check_prerequisites()
   t.assert.equal(retObj.stdout, undefined)
 })
+
+test('xcode version', (t) => {
+  t.assert ||= require('node:assert')
+
+  spawnMock.mock.mockImplementationOnce((...args) => {
+    return originalSpawnSync.call(childProcess, ...args)
+  })
+
+  const retObj = simctl.xcode_version()
+  t.assert.ok(retObj[0] >= 8)
+})
+
+test('simctl version', (t) => {
+  t.assert ||= require('node:assert')
+
+  spawnMock.mock.mockImplementationOnce((...args) => {
+    return originalSpawnSync.call(childProcess, ...args)
+  })
+
+  const retObj = simctl.simctl_version()
+  t.assert.ok(retObj[0] >= 400)
+})