From 93863bf5d8bf80da6b63b257bcd2b2da9f5cd6ab Mon Sep 17 00:00:00 2001
From: Alistair Burrowes <alistair.burrowes@gmail.com>
Date: Sun, 22 Aug 2021 11:29:34 +1000
Subject: [PATCH 1/2] Playing with ghcup as an install method

---
 8.10/ghcup/Dockerfile | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 8.10/ghcup/Dockerfile

diff --git a/8.10/ghcup/Dockerfile b/8.10/ghcup/Dockerfile
new file mode 100644
index 0000000..01a5edd
--- /dev/null
+++ b/8.10/ghcup/Dockerfile
@@ -0,0 +1,39 @@
+FROM debian:buster AS builder
+
+ENV LANG C.UTF-8
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        ca-certificates \
+        build-essential \
+        libffi-dev \
+        libffi6 \
+        libgmp-dev \
+        libgmp10 \
+        libncurses-dev \
+        libncurses5 \
+        libtinfo5 \
+        curl && \
+    rm -rf /var/lib/apt/lists/*
+
+ARG GHCUP_VERSION=0.1.16.2
+
+RUN curl -fSL https://downloads.haskell.org/~ghcup/$GHCUP_VERSION/x86_64-linux-ghcup-$GHCUP_VERSION -o ghcup && \
+    chmod +x ghcup
+
+ARG CABAL_VERSION=3.4.0.0
+
+RUN ./ghcup install cabal $CABAL_VERSION && \
+    ./ghcup set cabal $CABAL_VERSION
+
+ARG GHC_VERSION=8.10.6
+
+RUN ./ghcup install ghc $GHC_VERSION && \
+    ./ghcup set ghc $GHC_VERSION
+
+ARG STACK_VERSION=2.7.3
+
+RUN ./ghcup install stack $STACK_VERSION && \
+    ./ghcup set stack $STACK_VERSION
+
+RUN cp -H /root/.ghcup/bin/* /usr/local/bin
\ No newline at end of file

From 1cb1ec15fc2edf2bea1e378d6fc30efe86494bb3 Mon Sep 17 00:00:00 2001
From: Julian Ospald <hasufell@posteo.de>
Date: Sun, 22 Aug 2021 09:09:01 +0200
Subject: [PATCH 2/2] Adjust with --isolate

---
 8.10/ghcup/Dockerfile | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/8.10/ghcup/Dockerfile b/8.10/ghcup/Dockerfile
index 01a5edd..38b2902 100644
--- a/8.10/ghcup/Dockerfile
+++ b/8.10/ghcup/Dockerfile
@@ -2,6 +2,7 @@ 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 \
@@ -16,24 +17,24 @@ RUN apt-get update && \
         curl && \
     rm -rf /var/lib/apt/lists/*
 
+# 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 curl -fSL https://downloads.haskell.org/~ghcup/$GHCUP_VERSION/x86_64-linux-ghcup-$GHCUP_VERSION -o ghcup && \
-    chmod +x ghcup
-
+# install cabal
 ARG CABAL_VERSION=3.4.0.0
+RUN ghcup install cabal -i /usr/bin $CABAL_VERSION
 
-RUN ./ghcup install cabal $CABAL_VERSION && \
-    ./ghcup set cabal $CABAL_VERSION
-
-ARG GHC_VERSION=8.10.6
-
-RUN ./ghcup install ghc $GHC_VERSION && \
-    ./ghcup set ghc $GHC_VERSION
-
+# install stack
 ARG STACK_VERSION=2.7.3
+RUN ghcup install stack -i /usr/bin $STACK_VERSION
 
-RUN ./ghcup install stack $STACK_VERSION && \
-    ./ghcup set stack $STACK_VERSION
+# install GHC into /opt/ghc
+ARG GHC_VERSION=8.10.6
+RUN ghcup install ghc -i /opt/ghc $GHC_VERSION
 
-RUN cp -H /root/.ghcup/bin/* /usr/local/bin
\ No newline at end of file
+# 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"