merging PR #250: Prevent m̶a̶l̶i̶c̶i̶o̶u̶s̶ invalid code updates

#250: Prevent m̶a̶l̶i̶c̶i̶o̶u̶s̶ invalid code updates 

Description:


:ok_woman: PR passed with a vote of 15 for and 1 against, with a weighted total of 14.0 and a threshold of 6.2.

Vote record:
@EtherTyper: 1
@JarJak: 1
@Mursaat: 1
@PlasmaPower: 1
@ad-m: 1
@chickenchuck040: 1
@dcstone09: 1
@ike709: 1
@kochmaxence: -1
@patricknelson: 1
@reddraggone9: 1
@rhengles: 1
@rudehn: 1
@sorcio: 1
@viktorsec: 1
@xyproto: 1

startup.d/10-git-pull.sh

@@ -1,2 +1,23 @@
 #!/bin/sh
+
+# Prepare code auditing environment
+REPO_URL=$(git remote get-url origin)
+TEST_DIR=$(mktemp -d)
+git clone "$REPO_URL" "$TEST_DIR";
+pushd "$TEST_DIR";
+
+# Code auditing section
+find . -name '*.py' -print0 | xargs -0 python -m py_compile;
+if [ "$?" != "0" ]
+then
+  echo "There is syntax error. This may endanger chaos. Pauses updates."
+  rm -r -f "$TEST_DIR";
+  exit 45
+fi
+
+# End code auditing section
+popd
+rm -r -f "$TEST_DIR";
+
+git checkout master
 git pull

startup.sh

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 cd "$(dirname "$0")"
+
 for file in startup.d/*; do
   [[ -f "$file" && -x "$file" ]] && "$file"
 done