#!/bin/bash
#
# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

set -e

readonly READELF="$1"
readonly OUTFILE="$2"
readonly DEPFILE="$3"
readonly LISTFILE="$4"

FILES=()

gen_id_line() {
  FILES+=("$1")
  LC_ALL=C "$READELF" -n "$1" | sed -n '/Build ID:/{s/.*: //;s@$@ '"$1"'@p;}'
}

gen_id_lines_from_list() {
  local file
  while read file; do
    gen_id_line "$file"
  done
}

trap 'rm -f "$OUTFILE"' ERR HUP INT TERM

gen_id_lines_from_list < "$LISTFILE" > "$OUTFILE"

echo "$OUTFILE: ${FILES[*]}" > "$DEPFILE"