Find invalid YAML files

find-invalid-yaml-files.sh

#!/usr/bin/env bash

# Script for finding invalid yaml files in the current directory.
# Requires the yq script.

for program in find yq; do
  which "$program" > /dev/null || { echo "ERROR: '$program' program could not be found."; exit 1; }
done

if yq --version 2>/dev/null | grep -E "yq version [4-9]" > /dev/null; then
  # Support yq 4+ https://mikefarah.gitbook.io/yq/v/v4.x/upgrading-from-v3#validate-documents
  find . -name '*.yml' -exec sh -c 'yq e "true" "$0" > /dev/null || echo "$0 is invalid"' {} ';';
else
  find . -name '*.yml' -exec sh -c 'yq validate "$0" || echo "$0 is invalid"' {} ';';
fi