#!/bin/sh

# Sourced from https://stackoverflow.com/a/29835459/1975049
rreadlink() (
  target=$1 fname= targetDir= CDPATH=
  { \unalias command; \unset -f command; } >/dev/null 2>&1
  [ -n "$ZSH_VERSION" ] && options[POSIX_BUILTINS]=on
  while :; do
      [ -L "$target" ] || [ -e "$target" ] || { command printf '%s\n' "ERROR: '$target' does not exist." >&2; return 1; }
      command cd "$(command dirname -- "$target")"
      fname=$(command basename -- "$target")
      [ "$fname" = '/' ] && fname=''
      if [ -L "$fname" ]; then
        target=$(command ls -l "$fname")
        target=${target#* -> }
        continue
      fi
      break
  done
  targetDir=$(command pwd -P)
  if [ "$fname" = '.' ]; then
    command printf '%s\n' "${targetDir%/}"
  elif  [ "$fname" = '..' ]; then
    command printf '%s\n' "$(command dirname -- "${targetDir}")"
  else
    command printf '%s\n' "${targetDir%/}/$fname"
  fi
)

EXEC=$(rreadlink "$0")
DIR=$(dirname -- "$EXEC")


"/friends/.rakubrew/versions/moar-main/install/bin/moar" --execname="$EXEC" --libpath="$DIR" --libpath="$DIR/blib" --libpath="" "$DIR/perl6.moarvm" -e '
say "=" x 96;

say "This is Rakudo running in the  debugger, which often allows the user to generate useful back-\ntraces to debug or report issues in Rakudo, the MoarVM backend or the currently running code.\n";

unless $*VM.config<ccdebugflags> { say "The currently used MoarVM backend is not compiled with debugging symbols, you might want to\nreconfigure and reinstall MoarVM with --debug enabled.\n" }

say "This Rakudo version is $*RAKU.compiler.version() built on MoarVM version $*VM.version(),";
say "running on $*DISTRO.gist() / $*KERNEL.gist()\n";

say "Type `bt full` to generate a backtrace if applicable, type `q` to quit or `help` for help.";

say "-" x 96;
'


LLDB="lldb"
if [ -n "$RAKUDO_LLDB" ]; then
    LLDB="$RAKUDO_LLDB"
fi
"$LLDB" -o run "/friends/.rakubrew/versions/moar-main/install/bin/moar" -- --execname="$EXEC" --libpath="$DIR" --libpath="$DIR/blib" --libpath="" "$DIR/perl6.moarvm" "$@"