1 files changed, 80 insertions, 0 deletions
diff --git a/.gitlab/prepare-system.sh b/.gitlab/prepare-system.sh
new file mode 100755
index 0000000000..fbbb81b260
--- /dev/null
+++ b/.gitlab/prepare-system.sh
@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+# vim: sw=2 et
+set -euo pipefail
+
+fail() {
+  echo "ERROR: $*" >&2
+  exit 1
+}
+
+hackage_index_state="@1522046735"
+
+if [[ -z ${BUILD_SPHINX_HTML:-} ]]; then BUILD_SPHINX_HTML=YES; fi
+if [[ -z ${BUILD_SPHINX_PDF:-} ]]; then BUILD_SPHINX_PDF=YES; fi
+if [[ -z ${INTEGER_LIBRARY:-} ]]; then INTEGER_LIBRARY=integer-gmp; fi
+if [[ -z ${BUILD_FLAVOUR:-} ]]; then BUILD_FLAVOUR=perf; fi
+
+cat > mk/build.mk <<EOF
+V=1
+HADDOCK_DOCS=YES
+LATEX_DOCS=YES
+HSCOLOUR_SRCS=YES
+BUILD_SPHINX_HTML=$BUILD_SPHINX_HTML
+BUILD_SPHINX_PDF=$BUILD_SPHINX_PDF
+BeConservative=YES
+INTEGER_LIBRARY=$INTEGER_LIBRARY
+EOF
+
+cat <<EOF >> mk/build.mk
+BuildFlavour=$BUILD_FLAVOUR
+ifneq "\$(BuildFlavour)" ""
+include mk/flavours/\$(BuildFlavour).mk
+endif
+GhcLibHcOpts+=-haddock
+EOF
+
+case "$(uname)" in
+  Linux)
+    if [[ -n ${TARGET:-} ]]; then
+      if [[ $TARGET = FreeBSD ]]; then
+        # cross-compiling to FreeBSD
+        echo 'HADDOCK_DOCS = NO' >> mk/build.mk
+        echo 'WERROR=' >> mk/build.mk
+        # https://circleci.com/docs/2.0/env-vars/#interpolating-environment-variables-to-set-other-environment-variables
+        echo 'export PATH=/opt/ghc/bin:$PATH' >> $BASH_ENV
+      else
+        fail "TARGET=$target not supported"
+      fi
+    fi
+    ;;
+
+  Darwin)
+    if [[ -n ${TARGET:-} ]]; then
+      fail "uname=$(uname) not supported for cross-compilation"
+    fi
+    # It looks like we already have python2 here and just installing python3
+    # does not work.
+    brew upgrade python
+    brew install ghc cabal-install ncurses gmp
+
+    pip3 install sphinx
+    # PDF documentation disabled as MacTeX apparently doesn't include xelatex.
+    #brew cask install mactex
+
+    cabal update
+    cabal install --reinstall alex happy haddock hscolour --index-state=$hackage_index_state
+    # put them on the $PATH, don't fail if already installed
+    ln -s $HOME/.cabal/bin/alex /usr/local/bin/alex || true
+    ln -s $HOME/.cabal/bin/happy /usr/local/bin/happy || true
+    ln -s $HOME/.cabal/bin/HsColour /usr/local/bin/HsColour || true
+    echo "libraries/integer-gmp_CONFIGURE_OPTS += --configure-option=--with-intree-gmp" >> mk/build.mk
+    ;;
+  *)
+    fail "uname=$(uname) not supported"
+esac
+
+echo "================================================="
+echo "Build.mk:"
+echo ""
+cat mk/build.mk
+echo "================================================="