release := ""
cargo_flags := if release != "" { "--release" } else { "" }

default: run

mount_filesystem:
    # Add some permissions to be able to do next operations without sudo
    @mountpoint -q mnt || sudo mount -o umask=0022,gid=$(id -g $USER),uid=$(id -u $USER) disk.img mnt

sync_filesystem:
    sync

build_user_prog prog:
    RUSTFLAGS="-C relocation-model=pic -C link-arg=-Tilm.ld" cargo b {{ cargo_flags }} --package {{ prog }}
    riscv64-elf-objcopy -O binary {{ "target/riscv64/debug" / prog }} {{ "mnt/usr/bin" / prog }}

build: mount_filesystem (map_dir "user" "build_user_prog")
    cargo b {{ cargo_flags }}
    just sync_filesystem

run: build
    cargo r {{ cargo_flags }}

map_dir dir recipe:
    @for file in `ls {{ dir }}`; do \
        just cargo_flags="{{ cargo_flags }}" {{ recipe }} $file ; \
    done