Release CI: fixes and improvements (#9348)

* gitlab ci: Don't install stack

Fixes #9304

* Repair cabal's index state

Fixes #9312

* Expand alpine builds to include i386

Note the use of ghc-9.0.2 for i386-alpine.

Resolves #9347

.gitlab-ci.yml

@@ -59,16 +59,24 @@ build-linux:
     TARBALL_EXT: tar.xz
     ADD_CABAL_ARGS: "--enable-split-sections"
 
-build-x86_64-linux-alpine:
+build-linux-alpine:
   extends: .build
+  parallel:
+    matrix:
+      - ARCH: i386
+        OS: [alpine3_12]
+        GHC_VERSION: 9.0.2
+      - ARCH: x86_64
+        OS: [alpine3_12]
   tags:
     - x86_64-linux
   before_script:
     # for cabal build
     - sudo apk add --no-cache zlib zlib-dev zlib-static
-  image: "registry.gitlab.haskell.org/ghc/ci-images/x86_64-linux-alpine3_12:$DOCKER_REV"
+  image: "registry.gitlab.haskell.org/ghc/ci-images/$PLATFORM:$DOCKER_REV"
   variables:
-    TARBALL_ARCHIVE_SUFFIX: x86_64-linux-alpine
+    PLATFORM: "${ARCH}-linux-${OS}"
+    TARBALL_ARCHIVE_SUFFIX: $PLATFORM
     TARBALL_EXT: tar.xz
     ADD_CABAL_ARGS: "--enable-split-sections --enable-executable-static"
 

.gitlab/ci.sh

@@ -27,6 +27,8 @@ export BOOTSTRAP_HASKELL_NONINTERACTIVE=1
 export BOOTSTRAP_HASKELL_GHC_VERSION=$GHC_VERSION
 export BOOTSTRAP_HASKELL_CABAL_VERSION=$CABAL_INSTALL_VERSION
 export BOOTSTRAP_HASKELL_ADJUST_CABAL_CONFIG=yes
+# We don't use stack, and it isn't available on i386-deb9
+export BOOTSTRAP_HASKELL_INSTALL_NO_STACK=yes
 
 # for some reason the subshell doesn't pick up the arm64 environment on darwin
 # and starts installing x86_64 GHC
@@ -63,6 +65,7 @@ args=(
     ${ADD_CABAL_ARGS}
 )
 
+run cabal update hackage.haskell.org,HEAD
 run cabal v2-build ${args[@]} cabal-install
 
 mkdir "$CI_PROJECT_DIR/out"

cabal.project.release

@@ -5,3 +5,4 @@ packages: cabal-install/
 tests: False
 benchmarks: False
 optimization: True
+index-state: hackage.haskell.org 2023-10-13T10:16:13Z