Converts JSON to YAML with query capabilities

yaml.sh

#!/bin/sh

if ! docker images -q yq | grep '' 1>/dev/null
then
    docker build --pull -t yq - <<EOF
FROM alpine

RUN apk add --no-cache py2-pip jq && pip install -q yq

ENTRYPOINT ["yq"]
EOF

fi

PROXY_ENV=""
for VAR in `env | grep -vE '^(USER|HOME|UID)='`
do
  PROXY_ENV="$PROXY_ENV -e $VAR"
done

docker run --rm -i $([ -t 0 ] && echo '-t') \
    -u $(id -u) \
    -w /src \
    -v $PWD:/src \
    $PROXY_ENV \
    $RUN_ARGS \
  yq -y "$@"