multimc-dev: Add autoupdate (#109)

bucket/multimc-dev.json

@@ -1,9 +1,10 @@
 {
-    "version": "nightly",
+    "version": "1438",
     "description": "Launcher for Minecraft that allows for multiple, cleanly separated instances of Minecraft.",
     "homepage": "https://multimc.org/",
     "license": "Apache-2.0",
-    "url": "https://files.multimc.org/downloads/mmc-develop-win32.zip",
+    "url": "https://teamcity.multimc.org/app/rest/builds/number:1438/artifacts/content/package.tar.gz?guest=1",
+    "hash": "c1d96ffec4f2ea0c10357dd9fd69d0a99a64a2d202b80fca541f097d0dbf4b5d",
     "extract_dir": "MultiMC",
     "pre_install": [
         "if (-not (Test-Path \"$dir\\accounts.json\")) { New-Item \"$dir\\accounts.json\" -ItemType File | Out-Null }",
@@ -28,5 +29,12 @@
         "accounts.json",
         "multimc.cfg",
         "notifications.json"
-    ]
+    ],
+    "checkver": {
+        "url": "https://teamcity.multimc.org/app/rest/buildTypes/MultiMC_Launcher_Windows_Build/builds/status:success/number?guest=1",
+        "regex": "(.+)"
+    },
+    "autoupdate": {
+        "url": "https://teamcity.multimc.org/app/rest/builds/number:$version/artifacts/content/package.tar.gz?guest=1"
+    }
 }