distbrew.sh

#!/usr/bin/env bash
set -euo pipefail

getlibs() {
  otool -l "$1" |\
    (grep -A2 LC_LOAD_DYLIB || true) |\
    (grep name || true)  |\
    awk '{ print $2 }' |\
    (grep '/usr/local' || true)
}

patchdeps() {
  getlibs "$1" | while read lib; do
    BASELIB="$(basename "$lib")"
    if [ ! -e "$BASELIB" ]; then
      cp "$lib" "$BASELIB"
      chmod +w "$BASELIB"
      install_name_tool -id "@executable_path/$BASELIB" "$BASELIB"
      patchdeps "$BASELIB"
    fi
    install_name_tool -change "$lib" "@executable_path/$BASELIB" "$1"
  done
}

chmod +w "$1"
patchdeps "$1"