Add a check for the installed golang version

build-obfs4proxy.py

@@ -2,7 +2,7 @@
 import os
 from glob import glob
 from shutil import move, rmtree
-from subprocess import check_call
+from subprocess import check_call, check_output
 
 from utils import get_build_versions, ex, get_sha256, fail, zip_files, get_final_file_name, \
     get_sources_file_name, get_pom_file_name, reset_time, get_obfs4_version
@@ -16,6 +16,10 @@ def main():
     # Get the latest versions for building
     versions = get_build_versions(None)
 
+    # Check if proper Go version is installed
+    if versions['go']['version'] not in check_output(['go', 'version']).decode("UTF-8"):
+        fail("You need Go version %s to reproduce this binary" % versions['go']['version'])
+
     # Setup Android NDK
     setup_android_ndk(versions)
 

versions.json

@@ -5,6 +5,9 @@
       "got-get": "git.torproject.org/pluggable-transports/obfs4.git/obfs4proxy",
       "tag": "obfs4proxy-0.0.7"
     },
+    "go": {
+      "version": "go1.10.3"
+    },
     "ndk": {
       "url": "https://dl.google.com/android/repository/android-ndk-r18-linux-x86_64.zip",
       "revision": "18.0.5002713",