metadata-action/hack/vendor.Dockerfile

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# syntax=docker/dockerfile:1.2
ARG NODE_VERSION
FROM node:${NODE_VERSION}-alpine AS base
RUN apk add --no-cache git
WORKDIR /src
FROM base AS vendored
RUN --mount=type=bind,target=.,rw \
--mount=type=cache,target=/src/node_modules \
yarn install && mkdir /out && cp yarn.lock /out
FROM scratch AS update
COPY --from=vendored /out /
FROM vendored AS validate
RUN --mount=type=bind,target=.,rw \
git add -A && cp -rf /out/* .; \
if [ -n "$(git status --porcelain -- yarn.lock)" ]; then \
echo >&2 'ERROR: Vendor result differs. Please vendor your package with "docker buildx bake vendor-update"'; \
git status --porcelain -- yarn.lock; \
exit 1; \
fi