bootstrap

#!/bin/sh

usage() {
  echo >&2 "\
Usage: $0 [OPTION]...
Bootstrap this package from the checked-out sources.

Options:
 --gnulib-srcdir=DIRNAME  Specify the local directory where gnulib
                          sources reside.  Use this if you already
                          have gnulib sources on your machine, and
                          do not want to waste your bandwidth downloading
                          them again.

If the file bootstrap.conf exists in the current working directory, its
contents are read as shell variables to configure the bootstrap.

Running without arguments will suffice in most cases.
"
}

for option
do
  case $option in
  --help)
    usage
    exit;;
  --gnulib-srcdir=*)
    GNULIB_SRCDIR=${option#--gnulib-srcdir=};;
  *)
    echo >&2 "$0: $option: unknown option"
    exit 1;;
  esac
done

cleanup_gnulib() {
  st=$?
  rm -fr .gnulib
  exit $st
}

case ${GNULIB_SRCDIR--} in
-)
  if [ ! -d .gnulib ]; then
    echo "$0: getting gnulib files..."

    trap cleanup_gnulib 1 2 13 15

    git clone --depth 1 git://git.sv.gnu.org/gnulib .gnulib ||
      cleanup_gnulib

    trap - 1 2 13 15
  fi
  GNULIB_SRCDIR=.gnulib
esac

gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
<$gnulib_tool || exit

modules='
argz
fnmatch
getline
gitlog-to-changelog
canonicalize-lgpl
regex
selinux-h
strndup
vasprintf
'

# Tell gnulib to:
#   require LGPLv2+
#   put *.m4 files in new gnulib/m4/ dir
#   put *.[ch] files in new gnulib/lib/ dir.

$gnulib_tool			\
  --lgpl=2			\
  --with-tests			\
  --m4-base=gnulib/m4		\
  --source-base=gnulib/lib	\
  --tests-base=gnulib/tests	\
  --aux-dir=build/aux           \
  --quiet                       \
  --import $modules