# syntax=docker/dockerfile:1.1.3-experimental

ARG GO_VERSION=1.12.17
ARG GOLANGCI_LINTER_SHA="v1.21.0"

FROM    golang:${GO_VERSION}-alpine AS build
ENV     CGO_ENABLED=0
RUN     apk add --no-cache git
ARG     GOLANGCI_LINTER_SHA
ARG     GO111MODULE=on
RUN --mount=type=cache,target=/root/.cache/go-build \
    --mount=type=cache,target=/go/pkg/mod \
        go get github.com/golangci/golangci-lint/cmd/golangci-lint@${GOLANGCI_LINTER_SHA}

FROM    golang:${GO_VERSION}-alpine AS lint
ENV     CGO_ENABLED=0
ENV     DISABLE_WARN_OUTSIDE_CONTAINER=1
COPY --from=build /go/bin/golangci-lint /usr/local/bin
WORKDIR /go/src/github.com/docker/cli
ENV     GOGC=75
ENTRYPOINT ["/usr/local/bin/golangci-lint"]
CMD     ["run", "--config=.golangci.yml"]
COPY    . .