#!/bin/sh
set -eu

if [ "$#" -ne 6 ]; then
    echo "usage: $0 <cargo> <src_root> <build_root> <profile> <release_flag> <output>" >&2
    exit 2
fi

cargo_bin="$1"
src_root="$2"
build_root="$3"
profile="$4"
release_flag="$5"
output="$6"

cargo_home="$build_root/cargo-home"
cargo_target_dir="$build_root/cargo-target"

mkdir -p "$cargo_home" "$cargo_target_dir"

export CARGO_HOME="$cargo_home"
export CARGO_TARGET_DIR="$cargo_target_dir"

if [ "$release_flag" = "1" ]; then
    "$cargo_bin" build --locked --manifest-path "$src_root/Cargo.toml" --release
else
    "$cargo_bin" build --locked --manifest-path "$src_root/Cargo.toml"
fi

src_bin="$cargo_target_dir/$profile/depot"
if [ ! -f "$src_bin" ]; then
    echo "cargo build finished but binary not found: $src_bin" >&2
    exit 1
fi

mkdir -p "$(dirname "$output")"
cp "$src_bin" "$output"
chmod 0755 "$output"