lushui

#!/usr/bin/env bash
#
# Build and run the Lushui compiler.
#
# By default, optional compiler features are not built.
# All program arguments of this script are passed to the compiler
# except for the first one if it starts with a ‘+’.
# In such case, the argument denotes a comma-separated
# list of compiler features.
# If the argument equals the literal ‘all’, all available
# compiler features are enabled.
# 
# Examples (actual features and arguments might be outdated):
#
#     lushui -h
#     lushui check ./project
#     lushui +all serve
#     lushui +llvm,cranelift file build this.lushui
#
# This script is meant to be used by Lushui developers and
# thus to speed up the edit, compile & run cycle, features are
# opt-in making the default build of the compiler much faster.
# It is left to the developer to decide whether they need to
# enable certain features to successfully work on a specific
# area in the compiler.

FOLDER="$( dirname $( realpath $0 ) )"

HAS_FEATURE_FLAGS="^\\+([a-zA-Z0-9,-]+)\$"
if [[ "$1" =~ $HAS_FEATURE_FLAGS ]]; then
    FEATURES="${BASH_REMATCH[1]}"

    if [[ "$FEATURES" == all ]]; then
        FEATURE_OPTION=--all-features
    else
        FEATURE_OPTION="--features=$FEATURES"
    fi

    shift
fi

cargo \
    +nightly \
    run \
    --quiet \
    --manifest-path="$FOLDER/Cargo.toml" \
    $FEATURE_OPTION \
    -- \
    "$@"