Add 'hadrian/' from commit '45f3bff7016a2a0cd9a5455a882ced984655e90b'

git-subtree-dir: hadrian
git-subtree-mainline: 575b35f4cdc18045bccd42d341d6f25d95c0696c
git-subtree-split: 45f3bff7016a2a0cd9a5455a882ced984655e90b

1 files changed, 34 insertions, 0 deletions

diff --git a/hadrian/build.cabal.sh b/hadrian/build.cabal.sh
new file mode 100755
index 0000000000..9fddd61c4e
--- /dev/null
+++ b/hadrian/build.cabal.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+CABAL=cabal
+CABFLAGS="--disable-documentation --disable-profiling"
+
+# It is currently more robust to pass Cabal an absolute path to the project file.
+PROJ="$PWD/hadrian/cabal.project"
+
+set -euo pipefail
+
+if ! [ -f "$PROJ" ]; then
+    echo "Current working directory must be GHC's top-level folder"
+    exit 2
+fi
+
+if ! type "$CABAL" > /dev/null; then
+    echo "Please make sure 'cabal' is in your PATH"
+    exit 2
+fi
+
+CABVERSTR=$("$CABAL" --numeric-version)
+CABVER=( ${CABVERSTR//./ } )
+
+if [ "${CABVER[0]}" -gt 2 -o "${CABVER[0]}" -eq 2 -a "${CABVER[1]}" -ge 2 ];
+then
+    "$CABAL" --project-file="$PROJ" new-build $CABFLAGS -j exe:hadrian
+    "$CABAL" --project-file="$PROJ" new-run   $CABFLAGS    exe:hadrian -- \
+        --lint             \
+        --directory "$PWD" \
+        "$@"
+else
+    echo "Cabal version is too old; you need at least cabal-install 2.2"
+    exit 2
+fi