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#!/usr/bin/env bash
CABAL=cabal
set -euo pipefail
# readlink on os x, doesn't support -f, to prevent the
# need of installing coreutils (e.g. through brew, just
# for readlink, we use the follownig substitute.
#
# source: http://stackoverflow.com/a/1116890
function rl {
TARGET_FILE="$1"
cd "$(dirname "$TARGET_FILE")"
TARGET_FILE="$(basename "$TARGET_FILE")"
# Iterate down a (possible) chain of symlinks
while [ -L "$TARGET_FILE" ]
do
TARGET_FILE="$(readlink "$TARGET_FILE")"
cd "$(dirname "$TARGET_FILE")"
TARGET_FILE="$(basename "$TARGET_FILE")"
done
# Compute the canonicalized name by finding the physical path
# for the directory we're in and appending the target file.
PHYS_DIR="$(pwd -P)"
RESULT="$PHYS_DIR/$TARGET_FILE"
echo "$RESULT"
}
absoluteRoot="$(dirname "$(rl "$0")")"
cd "$absoluteRoot"
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 1 ]; then
# New enough Cabal version detected, so let's use the superior new-build + new-run
# modes. Note that pre-2.1 Cabal does not support passing additional parameters
# to the executable (hadrian) after the separator '--', see #438.
"$CABAL" new-build --disable-profiling --disable-documentation -j exe:hadrian
"$CABAL" new-run hadrian -- \
--lint \
--directory "$absoluteRoot/.." \
"$@"
else
# The logic below is quite fragile, but it's better than nothing for pre-2.1 Cabal.
echo "Old pre cabal 2.1 version detected. Falling back to legacy 'cabal sandbox' mode."
# Initialize sandbox if necessary
if ! ( "$CABAL" sandbox hc-pkg list > /dev/null 2>&1); then
"$CABAL" sandbox init
"$CABAL" sandbox add-source ../libraries/Cabal/Cabal
"$CABAL" install \
--dependencies-only \
--disable-library-profiling \
--disable-shared
fi
"$CABAL" run hadrian -- \
--lint \
--directory "$absoluteRoot/.." \
"$@"
fi
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