# -*- mode: sh; -*-
# Thanks <https://github.com/direnv/direnv/issues/73#issuecomment-152284914>
export_function()
{
  local name=$1
  local alias_dir=$PWD/.direnv/aliases
  mkdir -p "$alias_dir"
  PATH_add "$alias_dir"
  local target="$alias_dir/$name"
  if declare -f "$name" >/dev/null; then
    echo "#!$SHELL" > "$target"
    declare -f "$name" >> "$target" 2>/dev/null
    # Notice that we add shell variables to the function trigger.
    echo "$name \$*" >> "$target"
    chmod +x "$target"
  fi
}

use_guix()
{
    # Recreate a garbage collector root.
    gcroots="$HOME/.config/guix/gcroots"
    mkdir -p "$gcroots"
    gcroot="$gcroots/guix"
    if [ -L "$gcroot" ]
    then
        rm -v "$gcroot"
    fi

    # Miscellaneous packages.
    ENVIRONMENTS=(
        weechat # Debug runs
    )

    # Environment packages.
    PACKAGES=(
        autoconf # Deps with autoreconf
        autoconf-archive # Deps with m4 tooling
        automake # Deps with automake
        libtool # Deps with libtool
        make # Makefile and deps with makefiles
        cmake # Deps with cmake
        gcc-toolchain # Compilation
        pkg-config # Deps configuration and configuration of deps deps
        patchelf # Fix linkage (guix)
        bear # Generate compile_commands.json for language servers
        universal-ctags # Generate tags (make tags)
        weechat # Weechat includes
        libxml2 # Dep (libxml2)
        libstrophe # Dep (strophe)
        libgcrypt # Dep (gcrypt)
        libsignal-protocol-c # Dep (libsignal)
        rnp # Dep (rnpgp)
    )

    # Thanks <https://lists.gnu.org/archive/html/guix-devel/2016-09/msg00859.html>
    eval "$(guix environment --search-paths --root="$gcroot" ${ENVIRONMENTS[@]} --ad-hoc ${PACKAGES[@]} "$@")"

    export CC=gcc
}

use guix \
    --with-debug-info=weechat\
    --with-debug-info=libstrophe\
    --with-debug-info=libsignal-protocol-c\
    --with-debug-info=rnp\
    clang:extra gdb