#!/bin/sh -efu
# update-info-dir
# create a dir file from all installed info files
# Copyright 2009 Norbert Preining
# GPLv2

unset RPM_INSTALL_NAME
errors=0

if [ -n "${1-}" ]; then
  INFODIR="$1"; shift
else
  INFODIR=/usr/share/info
fi

cd "$INFODIR"

update_index()
{
  if dir="$(readlink -e dir)"; then
    mv -f -- "$dir" "$dir.old" ||:
  fi

  find -maxdepth 1 -type f |while read file; do
    t=${file##*/}
    t=${t%.gz}
    t=${t%.bz2}
    t=${t%.lzma}
    t=${t%.xz}
    case "$t" in
      dir|dir.old|*.png|*-[0-9]|*-[1-9][0-9]|*-[1-9][0-9][0-9])
        # these files are ignored
        continue
        ;;
      *)
        install-info --dir-file=dir --info-file="$file" ||
          errors=$(($errors+1))
        ;;
    esac
  done
}

find -type d |while read d; do
  pushd "$d" >/dev/null
  update_index
  popd >/dev/null
done

if [ $errors -gt 0 ]; then
  echo >&2 "Updating the index of info documentation produced $errors errors."
fi

exit 0

# vim:set expandtab tabstop=2: #