From ec79e08f0882786d816acce4c5df931bae27cc01 Mon Sep 17 00:00:00 2001
From: lu4p <lu4p@pm.me>
Date: Fri, 14 Aug 2020 21:24:15 +0200
Subject: [PATCH] Check that all files use LF line endings in CI

---
 .github/workflows/test.yml |  7 +++++++
 crlf_test.sh               | 27 +++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 crlf_test.sh

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2cec832..d3f3881 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -41,3 +41,10 @@ jobs:
       run: |
         go version
         go test ./...
+  test-conventions:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Test that on LF line endings are used
+      run: bash crlf_test.sh
diff --git a/crlf_test.sh b/crlf_test.sh
new file mode 100644
index 0000000..fa3242e
--- /dev/null
+++ b/crlf_test.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+echo "searching for CRLF endings in: ."
+
+BOLD_RED='\033[1;31m'
+BOLD_GREEN='\033[1;32m'
+NC='\033[0m'
+
+ERROR_COUNT=0
+
+if \
+  grep \
+    --recursive \
+    --files-with-matches \
+    --binary \
+    --binary-files=without-match \
+    --max-count=1 \
+    --exclude-dir="\.git" \
+    $'\r' \
+    . \
+  ; then
+  # TODO exit status should be number of files with wrong endings found
+  echo -e "${BOLD_RED}Found at least a file with CRLF endings.${NC}"
+  exit 1
+fi
+
+echo -e "${BOLD_GREEN}No files with CRLF endings found.${NC}"
+exit 0
\ No newline at end of file