#!/bin/sh

# the `install -s` strip flag provided by gnu coreutils surprisngly
# enough understands the portable executable format however it will
# silently corrupt any actually portable executable it touches, due
# to how it overwrites the whole mz header and removes the dos stub
FIRST=1
for x; do
  if [ $FIRST -eq 1 ]; then
    set --
    FIRST=0
  fi
  if [ x"$x" = x"-s" ]; then
    continue
  fi
  set -- "$@" "$x"
done

# now magically copy multi-architecture build artifacts
if [ $# -gt 1 ]; then

  # parse `install [$flags]... $src $dst`
  i=0
  n=$(( $# - 2 ))
  dst=
  src=
  flags=
  for x; do
    if [ x"$x" != x"${x#* }" ]; then
      # give up if any arguments contain spaces
      exec install "$@"
    fi
    src=$dst
    dst=$x
    if [ $i -lt $n ]; then
      flags="$flags $x"
    fi
    i=$(( i + 1 ))
  done

  arch=aarch64

  # turn:
  #   install -c -m 644 foo.a /usr/lib/foo.a
  # into:
  #   install -c -m 644 foo.a /usr/lib/foo.a
  #   install -c -m 644 .aarch/foo.a /usr/lib/.aarch/foo.a
  if [ x"${dst##*/}" = x"${src##*/}" ] &&  # basenames are equal
     [ x"$dst" != x"${dst%.a}" ]; then     # specifies static archive
    srcdir=${src%/*}
    srcbas=${dst##*/}
    if [ x"$srcdir" = x"$src" ]; then
      srcdir=
    elif [ -n "$srcdir" ]; then
      srcdir="$srcdir/"
    fi
    if [ -f "$srcdir.$arch/$srcbas" ]; then
      dstdir=${dst%/*}
      dstbas=${dst##*/}
      if [ x"$dstdir" = x"$dst" ]; then
        dstdir=
      elif [ -n "$dstdir" ]; then
        dstdir="$dstdir/"
      fi
      if [ ! -d "$dstdir.$arch" ]; then
        mkdir -p "$dstdir.$arch" || exit
      fi
      install $flags $src $dst || exit
      exec install $flags \
           "$srcdir.$arch/$srcbas" \
           "$dstdir.$arch/$dstbas"
    fi
  fi

  # turn:
  #   install -c -m 644 foo.a /usr/lib
  # into:
  #   install -c -m 644 foo.a /usr/lib
  #   install -c -m 644 .aarch/foo.a /usr/lib/.aarch
  arch=aarch64
  if [ x"$src" != x"${src%.a}" ] && [ -d "$dst" ]; then
    srcdir=${src%/*}
    srcbas=${dst##*/}
    if [ x"$srcdir" = x"$src" ]; then
      srcdir=
    elif [ -n "$srcdir" ]; then
      srcdir="$srcdir/"
    fi
    if [ -f "$srcdir.$arch/$srcbas" ]; then
      if [ ! -d "$dst/.$arch" ]; then
        mkdir -p "$dst/.$arch" || exit
      fi
      install $flags $src $dst || exit
      exec install $flags "$srcdir.$arch/$srcbas" "$dst/.$arch"
    fi
  fi

fi

exec install "$@"