Build manpages #2983

Author: nicholasdille

tools/docker-manpages/Dockerfile.template

@@ -1,12 +1,20 @@
 #syntax=docker/dockerfile:1.4.3
 
 ARG ref=main
-FROM ghcr.io/nicholasdille/docker-setup/base:${ref} AS prepare
 
+FROM golang:1.19.1 AS build
+WORKDIR /go/src/github.com/docker/cli
 ARG name
 ARG version
+RUN git clone -q --config advice.detachedHead=false --depth 1 --branch "v${version}" https://github.com/docker/cli .
+ENV GO111MODULE=auto \
+    DISABLE_WARN_OUTSIDE_CONTAINER=1
+RUN sed -i -E 's|^(\s+)(log.Printf\("WARN:)|\1//\2|' man/generate.go \
+ && sed -i -E 's|^(\s+)"log"||' man/generate.go \
+ && make manpages
+RUN cp -r man/man1 /usr/local/share/man/ \
+ && cp -r man/man5 /usr/local/share/man/ \
+ && cp -r man/man8 /usr/local/share/man/
 
-RUN <<EOF
-curl --silent --location "https://github.com/nicholasdille/docker-cli-manpages/releases/download/v${version}/docker-cli-manpages.tar.gz" \
-| tar --extract --gzip --directory="${prefix}${target}" --no-same-owner
-EOF
+FROM ghcr.io/nicholasdille/docker-setup/base:${ref} AS prepare
+COPY --from=build /usr/local/share/man/ ${prefix}${target}/share/man/