From 01796aa02456efd8329185fc9bc3023d257bdc1d Mon Sep 17 00:00:00 2001
From: Eideen <torsteine@gmail.com>
Date: Tue, 23 Apr 2019 22:35:26 +0200
Subject: [PATCH] add check for xz

---
 updater.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/updater.py b/updater.py
index ccd1d83..f532601 100644
--- a/updater.py
+++ b/updater.py
@@ -10,6 +10,7 @@ import settings
 import requests
 import os
 
+
 # Function to download a file
 def download(url, file_name):
     # open in binary mode
@@ -35,6 +36,18 @@ def buildFromSource(tag):
     # Move binary
     os.system("mv gitea "+settings.gtfile)
 
+def is_tool(name):
+    ##Check whether `name` is on PATH and marked as executable. 
+
+    # from whichcraft import which
+    from shutil import which
+
+    return which(name) is not None
+
+if not is_tool("xz"):
+	print ("missing dependency: xz")
+	quit()
+
 # Version from gitea site
 current_version = requests.get(settings.gtsite).json()['version']
 print ("current_version =", current_version)