anchor.diff:  ARG PG_VERSION
   FROM golang:alpine AS tools
   
  +ENV TOOLS_VERSION 0.3.0
   
   RUN apk update && apk add --no-cache git \
       && mkdir -p ${GOPATH}/src/github.com/timescale/ \
  
positive.code:     && git clone https://github.com/timescale/timescaledb-parallel-copy.git \
      # Build timescaledb-tune
      && cd timescaledb-tune/cmd/timescaledb-tune \
      && git checkout $(git describe --abbrev=0) \
      && go get -d -v \
      && go build -o /go/bin/timescaledb-tune \
      # Build timescaledb-parallel-copy
      && cd ${GOPATH}/src/github.com/timescale/timescaledb-parallel-copy/cmd/timescaledb-parallel-copy \
      && git checkout $(git describe --abbrev=0) \
      && go get -d -v \
      && go build -o /go/bin/timescaledb-parallel-copy
  
  
negative.code:     # Build old versions to keep .so and .sql files around \
      && OLD_VERSIONS_PRE11="0.10.0 0.10.1 0.11.0 \
      0.12.0 0.12.1 1.0.0-rc1 1.0.0-rc2 1.0.0-rc3 \
      1.0.0 1.0.1" \
      && OLD_VERSIONS_11="1.1.0" \
      && OLD_VERSIONS="${OLD_VERSIONS_11}" \
      && if [ "$(echo ${PG_VERSION} | cut -c1-2)" != "11" ]; then \
          OLD_VERSIONS="${OLD_VERSIONS_PRE11} ${OLD_VERSIONS_11}"; \
  