[feat] Travis auto update editor installers (#22)

* Added script for committing changes in cron job.

* Updated editor-installers.json [skip ci]

.travis.yml

@@ -5,4 +5,6 @@ after_success:
     - node --version
     - npm --version
     - npm test
+script:
+  - ./utils/commit-changes.sh
 sudo: false

data/editor-installers.json

@@ -1,4 +1,12 @@
 {
+  "2019.2.13f1": {
+    "mac": "https://download.unity3d.com/download_unity/e20f6c7e5017/MacEditorInstaller/Unity-2019.2.13f1.pkg",
+    "win64": "https://download.unity3d.com/download_unity/e20f6c7e5017/Windows64EditorInstaller/UnitySetup64-2019.2.13f1.exe"
+  },
+  "2019.2.12f1": {
+    "mac": "https://download.unity3d.com/download_unity/b1a7e1fb4fa5/MacEditorInstaller/Unity-2019.2.12f1.pkg",
+    "win64": "https://download.unity3d.com/download_unity/b1a7e1fb4fa5/Windows64EditorInstaller/UnitySetup64-2019.2.12f1.exe"
+  },
   "2019.2.11f1": {
     "mac": "https://download.unity3d.com/download_unity/5f859a4cfee5/MacEditorInstaller/Unity-2019.2.11f1.pkg",
     "win64": "https://download.unity3d.com/download_unity/5f859a4cfee5/Windows64EditorInstaller/UnitySetup64-2019.2.11f1.exe"
@@ -107,6 +115,10 @@
     "mac": "https://download.unity3d.com/download_unity/292b93d75a2c/MacEditorInstaller/Unity-2019.1.0f2.pkg",
     "win64": "https://download.unity3d.com/download_unity/292b93d75a2c/Windows64EditorInstaller/UnitySetup64-2019.1.0f2.exe"
   },
+  "2018.4.13f1": {
+    "mac": "https://download.unity3d.com/download_unity/497f083a43af/MacEditorInstaller/Unity-2018.4.13f1.pkg",
+    "win64": "https://download.unity3d.com/download_unity/497f083a43af/Windows64EditorInstaller/UnitySetup64-2018.4.13f1.exe"
+  },
   "2018.4.12f1": {
     "mac": "https://download.unity3d.com/download_unity/59ddc4c59b4f/MacEditorInstaller/Unity-2018.4.12f1.pkg",
     "win64": "https://download.unity3d.com/download_unity/59ddc4c59b4f/Windows64EditorInstaller/UnitySetup64-2018.4.12f1.exe"

utils/commit-changes.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+git diff --quiet data/editor-installers.json
+
+if [[ $? -eq 0 ]]; then
+
+    exit 0
+
+fi
+
+git config --global user.email "$GITHUB_USER_EMAIL"
+git config --global user.name "$GITHUB_USER_NAME"
+
+git add data/editor-installers.json
+git commit -m "Updated editor-installers.json [skip ci]"
+git remote add github "https://$GITHUB_TOKEN@github.com/neogeek/get-unity"
+git push github HEAD:"$TRAVIS_BRANCH"