Use ghcup for 8.10/buster

Author: hasufell

8.10/buster/Dockerfile

@@ -1,54 +1,40 @@
-FROM debian:buster
+FROM debian:buster AS builder
 
 ENV LANG C.UTF-8
 
+# install prerequisites
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         ca-certificates \
-        curl \
-        dirmngr \
-        g++ \
-        git \
-        gnupg \
-        libsqlite3-dev \
-        libtinfo-dev \
-        make \
-        netbase \
-        openssh-client \
-        xz-utils \
-        zlib1g-dev && \
+        build-essential \
+        libffi-dev \
+        libffi6 \
+        libgmp-dev \
+        libgmp10 \
+        libncurses-dev \
+        libncurses5 \
+        libtinfo5 \
+        curl && \
     rm -rf /var/lib/apt/lists/*
 
-ARG GHC=8.10.4
-ARG DEBIAN_KEY=427CB69AAC9D00F2A43CAF1CBA3CBA3FFE22B574
-ARG CABAL_INSTALL=3.4
+# install ghcup
+ARG GHCUP_VERSION=0.1.16.2
+RUN curl --proto '=https' --tlsv1.2 -sSf https://downloads.haskell.org/~ghcup/$GHCUP_VERSION/x86_64-linux-ghcup-$GHCUP_VERSION > /usr/bin/ghcup && \
+    chmod +x /usr/bin/ghcup
 
-RUN export GNUPGHOME="$(mktemp -d)" && \
-    gpg --batch --keyserver keyserver.ubuntu.com --recv-keys ${DEBIAN_KEY} && \
-    gpg --batch --armor --export ${DEBIAN_KEY} > /etc/apt/trusted.gpg.d/haskell.org.gpg.asc && \
-    gpgconf --kill all && \
-    echo 'deb http://downloads.haskell.org/debian buster main' > /etc/apt/sources.list.d/ghc.list && \
-    apt-get update && \
-    apt-get install -y --no-install-recommends \
-        cabal-install-${CABAL_INSTALL} \
-        ghc-${GHC} && \
-    rm -rf "$GNUPGHOME" /var/lib/apt/lists/*
-
-ARG STACK=2.7.3
-ARG STACK_KEY=C5705533DA4F78D8664B5DC0575159689BEFB442
-ARG STACK_RELEASE_KEY=2C6A674E85EE3FB896AFC9B965101FF31C5C154D
+# install cabal
+ARG CABAL_VERSION=3.4.0.0
+RUN ghcup install cabal -i /usr/bin $CABAL_VERSION
 
-RUN export GNUPGHOME="$(mktemp -d)" && \
-    gpg --batch --keyserver keyserver.ubuntu.com --recv-keys ${STACK_KEY} && \
-    gpg --batch --keyserver keyserver.ubuntu.com --recv-keys ${STACK_RELEASE_KEY} && \
-    curl -fSL https://github.com/commercialhaskell/stack/releases/download/v${STACK}/stack-${STACK}-linux-x86_64.tar.gz -o stack.tar.gz && \
-    curl -fSL https://github.com/commercialhaskell/stack/releases/download/v${STACK}/stack-${STACK}-linux-x86_64.tar.gz.asc -o stack.tar.gz.asc && \
-    gpg --batch --trusted-key 0x575159689BEFB442 --verify stack.tar.gz.asc stack.tar.gz && \
-    tar -xf stack.tar.gz -C /usr/local/bin --strip-components=1 && \
-    /usr/local/bin/stack config set system-ghc --global true && \
-    /usr/local/bin/stack config set install-ghc --global false && \
-    rm -rf "$GNUPGHOME" /var/lib/apt/lists/* /stack.tar.gz.asc /stack.tar.gz
+# install stack
+ARG STACK_VERSION=2.7.3
+RUN ghcup install stack -i /usr/bin $STACK_VERSION
 
-ENV PATH /root/.cabal/bin:/root/.local/bin:/opt/cabal/${CABAL_INSTALL}/bin:/opt/ghc/${GHC}/bin:$PATH
+# install GHC into /opt/ghc
+ARG GHC_VERSION=8.10.6
+RUN ghcup install ghc -i /opt/ghc $GHC_VERSION
 
-CMD ["ghci"]
+# Adjust PATH
+RUN echo 'export PATH="/opt/ghc/bin:$PATH"' >> /etc/profile.d/ghcup_path.sh && \
+	chmod +x /etc/profile.d/ghcup_path.sh
+ENV PATH="/opt/ghc/bin:$PATH"