fix: use prebuilt Dart Sass instead, to avoid using the alpine:edge image [build] (#112)

docker/hugo/Dockerfile-builder

@@ -37,6 +37,16 @@ RUN --mount=type=cache,target=/go/pkg \
     xx-go build -ldflags="$LDFLAGS" -tags $BUILD_TAGS -o /usr/bin/hugo; \
   fi
 
+FROM alpine as dart-sass
+
+ARG TARGETARCH
+
+RUN apk add jq curl
+RUN curl -s https://api.github.com/repos/sass/dart-sass/releases/latest | \
+    jq -r --arg REGEXP "^.+-linux-${TARGETARCH/amd64/x64}-musl.tar.gz$" '.assets[].browser_download_url | match($REGEXP) | .string' | \
+    xargs -n1 curl -L -o dart-sass.tar.gz
+RUN tar -C /opt -xzf dart-sass.tar.gz
+
 FROM golang:alpine as builder
 
 COPY --from=gobuild /usr/bin/hugo /usr/bin/hugo

docker/hugo/Dockerfile-dart-sass

@@ -3,7 +3,7 @@ INCLUDE ./Dockerfile-builder
 
 FROM node:alpine AS node
 
-FROM alpine:edge
+FROM alpine
 
 INCLUDE ./snippets/node
 

docker/hugo/Dockerfile-dart-sass-base

@@ -1,7 +1,7 @@
 # syntax = devthefuture/dockerfile-x
 INCLUDE ./Dockerfile-builder
 
-FROM alpine:edge
+FROM alpine
 
 INCLUDE ./snippets/common
 

docker/hugo/Dockerfile-dart-sass-git

@@ -1,7 +1,7 @@
 # syntax = devthefuture/dockerfile-x
 INCLUDE ./Dockerfile-builder
 
-FROM alpine:edge
+FROM alpine
 
 INCLUDE ./snippets/common
 

docker/hugo/Dockerfile-dart-sass-go

@@ -1,7 +1,7 @@
 # syntax = devthefuture/dockerfile-x
 INCLUDE ./Dockerfile-builder
 
-FROM alpine:edge
+FROM alpine
 
 INCLUDE ./snippets/common
 

docker/hugo/Dockerfile-dart-sass-go-git

@@ -1,7 +1,7 @@
 # syntax = devthefuture/dockerfile-x
 INCLUDE ./Dockerfile-builder
 
-FROM alpine:edge
+FROM alpine
 
 INCLUDE ./snippets/common
 

docker/hugo/Dockerfile-dart-sass-node

@@ -3,7 +3,7 @@ INCLUDE ./Dockerfile-builder
 
 FROM node:alpine AS node
 
-FROM alpine:edge
+FROM alpine
 
 INCLUDE ./snippets/node
 

docker/hugo/Dockerfile-dart-sass-node-git

@@ -3,7 +3,7 @@ INCLUDE ./Dockerfile-builder
 
 FROM node:alpine AS node
 
-FROM alpine:edge
+FROM alpine
 
 INCLUDE ./snippets/node
 

docker/hugo/snippets/ci

@@ -10,3 +10,6 @@ RUN gem install html-proofer --bindir /usr/local/bin
 
 # clean up
 RUN apk --purge del build-base make ruby-dev
+
+# require by Node.js
+RUN apk add --no-cache libstdc++

docker/hugo/snippets/dart-sass

@@ -1,3 +1,2 @@
-# install Embedded Dart SASS.
+COPY --from=dart-sass /opt/dart-sass /opt/dart-sass
-RUN apk add dart-sass --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing/
+ENV PATH="$PATH:/opt/dart-sass"
-RUN apk add --no-cache dart-sass

docker/hugo/snippets/exts

@@ -1,11 +1,8 @@
 FROM node:alpine as node
 
-FROM alpine:edge
+FROM alpine
 
-COPY --from=node /usr/lib /usr/lib
+INCLUDE ./node
-COPY --from=node /usr/local/lib /usr/local/lib
-COPY --from=node /usr/local/include /usr/local/include
-COPY --from=node /usr/local/bin /usr/local/bin
 
 # install extra Markdown handlers
 RUN apk add --no-cache \