From 8bdcf243ec7e24d105a9c1ba94cc3654d46bcbd7 Mon Sep 17 00:00:00 2001
From: Tim Crawford <tcrawford@system76.com>
Date: Tue, 9 Mar 2021 15:29:40 -0700
Subject: [PATCH] Add lint to ensure spaces are used for indentation

---
 .github/workflows/ci.yml   | 6 ++++--
 scripts/lint/indent.sh     | 6 ++++++
 scripts/{ => lint}/spdx.sh | 0
 3 files changed, 10 insertions(+), 2 deletions(-)
 create mode 100755 scripts/lint/indent.sh
 rename scripts/{ => lint}/spdx.sh (100%)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3fafc65..0ffb4e1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,12 +5,14 @@ on:
   pull_request:
 
 jobs:
-  spdx:
+  lint:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Check SPDX identifiers
-        run: ./scripts/spdx.sh
+        run: ./scripts/lint/spdx.sh
+      - name: Check indentation
+        run: ./scripts/lint/indent.sh
 
   tool:
     strategy:
diff --git a/scripts/lint/indent.sh b/scripts/lint/indent.sh
new file mode 100755
index 0000000..553e79f
--- /dev/null
+++ b/scripts/lint/indent.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-3.0-only
+# Check files do not use tabs for indentation
+
+git ls-files '*.[c\|h\|rs\|sh]' | xargs grep --line-number $'^\s*\t' && exit 1
+exit 0
diff --git a/scripts/spdx.sh b/scripts/lint/spdx.sh
similarity index 100%
rename from scripts/spdx.sh
rename to scripts/lint/spdx.sh