From 77a779aebe8011f35256abf9b4230b4032f29b51 Mon Sep 17 00:00:00 2001
From: William Petit <wpetit@cadoles.com>
Date: Thu, 20 Sep 2018 17:53:43 +0200
Subject: [PATCH] Provides a pre-commit git hook to lint Go files

---
 doc/prepa-dev.md          |  6 ++++++
 misc/git-hooks/pre-commit | 17 +++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100755 misc/git-hooks/pre-commit

diff --git a/doc/prepa-dev.md b/doc/prepa-dev.md
index 578699f..2ae7b91 100644
--- a/doc/prepa-dev.md
+++ b/doc/prepa-dev.md
@@ -15,4 +15,10 @@
 2. Lancer le serveur
   ```shell
   make watch
+  ```
+
+3. (Optionnel mais recommandé) Installer le hook Git `pre-commit`
+  ```shell
+  rm -f .git/hooks/pre-commit.sample
+  ln -s "$PWD/misc/git-hooks/pre-commit" .git/hooks/pre-commit
   ```
\ No newline at end of file
diff --git a/misc/git-hooks/pre-commit b/misc/git-hooks/pre-commit
new file mode 100755
index 0000000..97f1d92
--- /dev/null
+++ b/misc/git-hooks/pre-commit
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -eo pipefail
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+CHANGESET=$(git diff --cached --name-only --diff-filter=ACM)
+
+function lint_go_files {
+  echo "Linting modified Go files..."
+  ( cd "$DIR/../.." && make LINT_ARGS="--new-from-rev=HEAD~ ./..." lint )
+}
+
+function main {
+  lint_go_files
+}
+
+main
\ No newline at end of file