#! /bin/sh

# Script to test a directory listing. We use this to verify that the list of
# files installed by "make install" or "cmake --install" matches what we expect.

LANG=C # Ensure stable ordering of `sort` output
export LANG

if [ "$1" = "" -o "$2" = "" ] ; then
    echo "Usage: $0 <dir> <manifest name>" >&2
  exit 1
fi

input_dir="$1"
expected_manifest="$2"

base=`basename $expected_manifest`

sed=sed
grep=grep
# Helpers for Solaris
if [ -f /usr/bin/gsed ] ; then
  sed=/usr/bin/gsed
fi
if [ -f /usr/bin/ggrep ] ; then
  grep=/usr/bin/ggrep
fi

find "$input_dir" -print | \
  sort | \
  xargs -n1 -- ls -l -d -n | \
  $sed -E -e 's/ {2,}/ /g' | \
  cut -d' ' -f '1,9-' \
  > "$base"

if ! diff -u "$expected_manifest" "$base"; then
  echo "Installed files differ from expected" >&2

  echo "===Actual===" >&2
  cat "$base" >&2
  echo "===End===" >&2

  exit 1
fi

echo "Installed files match expected"
rm -f "$base"