docs/.travis/check-pr-no-readme.sh

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#!/usr/bin/env bash
set -Eeuo pipefail
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")/.."
if [ "$TRAVIS_PULL_REQUEST" != 'false' ]; then
git fetch -q https://github.com/docker-library/docs.git master
if [ -n "$(git diff --numstat FETCH_HEAD...HEAD -- '*/README.md')" ]; then
echo >&2 'Error: at least one repo README.md has changed'
echo >&2 'These files are autogenerated, so it is unnecessary to modify them'
echo >&2 'Please update content.md and docker-library-bot will take care of README.md'
echo >&2 'See: https://github.com/docker-library/docs/#image-namereadmemd'
echo >&2
exit 1
fi
fi