From 9e7bd29087bd2bbcc0b467995ee187cfdd0e3d38 Mon Sep 17 00:00:00 2001
From: Roman Zeyde <me@romanzey.de>
Date: Wed, 21 Nov 2018 09:43:10 +0200
Subject: [PATCH] Add simple pre-commit hook for running 'cargo fmt'

Inspired by https://github.com/mimblewimble/grin/pull/110
---
 .hooks/install.sh |  4 ++++
 .hooks/pre-commit | 21 +++++++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100755 .hooks/install.sh
 create mode 100755 .hooks/pre-commit

diff --git a/.hooks/install.sh b/.hooks/install.sh
new file mode 100755
index 0000000..fb92209
--- /dev/null
+++ b/.hooks/install.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+cd `dirname $0`/../.git/hooks/
+ln -s ../../.hooks/pre-commit
diff --git a/.hooks/pre-commit b/.hooks/pre-commit
new file mode 100755
index 0000000..bd717f1
--- /dev/null
+++ b/.hooks/pre-commit
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+CARGO_FMT="cargo +stable fmt --all"
+
+$CARGO_FMT --version &>/dev/null
+if [ $? != 0 ]; then
+    printf "[pre_commit] \033[0;31merror\033[0m: \"$CARGO_FMT\" not available?\n"
+    exit 1
+fi
+
+$CARGO_FMT -- --check
+result=$?
+
+printf "[pre_commit] $CARGO_FMT → "
+if [ $result != 0 ]; then
+    printf "\033[0;31merror\033[0m \n"
+else
+    printf "\033[0;32mOK\033[0m \n"
+fi
+
+exit $result