From 2ca918fd2fd8bf775f166a20a20884031c8f2785 Mon Sep 17 00:00:00 2001
From: William Boman <william@redwill.se>
Date: Fri, 20 Feb 2015 00:12:55 +0100
Subject: [PATCH] Now ensures the user has required binaries before trying to
 set git hook.

---
 scripts/init-git-post-commit | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/scripts/init-git-post-commit b/scripts/init-git-post-commit
index a174581..8345dec 100755
--- a/scripts/init-git-post-commit
+++ b/scripts/init-git-post-commit
@@ -1,5 +1,13 @@
 #!/bin/sh
 
+check_command() {
+	command -v "$1" > /dev/null 2>&1 || { echo "git-stats hook script requires the \`${1}\` binary in order to run." >&2; exit 1; }
+}
+
+check_command "perl"
+check_command "printf"
+check_command "git"
+
 echo "Setting up git-stats hooks.";
 
 git_templates_dir=$(git config --global --get init.templatedir);