esp-idf/tools/ci/check-line-endings.sh

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#!/bin/sh
if ! [ -z "$1" ]; then
cd "$1"
fi
echo "Checking for Windows line endings in `pwd`"
if git ls-tree --name-only -r HEAD | xargs file -N | grep CRLF; then
echo "Some files have CRLF (Windows-style) line endings. Please convert to LF (Unix-style). git can be configured to do this automatically."
exit 1
fi
exit 0