compose/docs/docs.Dockerfile

58 lines
1.6 KiB
Docker

# syntax=docker/dockerfile:1.3-labs
# Copyright 2020 Docker Compose CLI authors
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
ARG GO_VERSION=1.18.2
ARG FORMATS=md,yaml
FROM --platform=${BUILDPLATFORM} golang:${GO_VERSION}-alpine AS docsgen
WORKDIR /src
RUN --mount=target=. \
--mount=target=/root/.cache,type=cache \
go build -o /out/docsgen ./docs/yaml/main/generate.go
FROM --platform=${BUILDPLATFORM} alpine AS gen
RUN apk add --no-cache rsync git
WORKDIR /src
COPY --from=docsgen /out/docsgen /usr/bin
ARG FORMATS
RUN --mount=target=/context \
--mount=target=.,type=tmpfs <<EOT
set -e
rsync -a /context/. .
docsgen --formats "$FORMATS" --source "docs/reference"
mkdir /out
cp -r docs/reference /out
EOT
FROM scratch AS update
COPY --from=gen /out /out
FROM gen AS validate
RUN --mount=target=/context \
--mount=target=.,type=tmpfs <<EOT
set -e
rsync -a /context/. .
git add -A
rm -rf docs/reference/*
cp -rf /out/* ./docs/
if [ -n "$(git status --porcelain -- docs/reference)" ]; then
echo >&2 'ERROR: Docs result differs. Please update with "make docs"'
git status --porcelain -- docs/reference
exit 1
fi
EOT