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|
#! /bin/sh
#
# import-gnulib.sh -- imports a copy of gnulib into findutils
# Copyright (C) 2003,2004,2005,2006,2007 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
#
##########################################################################
#
# This script is intended to populate the "gnulib" directory
# with a subset of the gnulib code, as provided by "gnulib-tool".
#
# To use it, just run this script with the top-level sourec directory
# as your working directory.
# If CDPATH is set, it will sometimes print the name of the directory
# to which you have moved. Unsetting CDPATH prevents this, as does
# prefixing it with ".".
unset CDPATH
## Defaults
# cvsdir=/doesnotexist
configfile="./import-gnulib.config"
need_checkout=yes
usage() {
cat >&2 <<EOF
usage: $0 [-d gnulib-directory]
The default behaviour is to check out the Gnulib code via anonymous
CVS (or update it if there is a version already checked out). The
checkout or update is performed to the gnulib version indicated in
the configuration file $configfile.
If you wish to work with a different version of gnulib, use the -d option
to specify the directory containing the gnulib code.
EOF
}
do_checkout () {
local cvsdir="$1"
echo checking out gnulib from CVS in $cvsdir
if [ -z "$gnulib_version" ] ; then
echo "Error: There should be a gnulib_version setting in $configfile, but there is not." >&2
exit 1
fi
if ! [ -d "$cvsdir" ] ; then
if mkdir "$cvsdir" ; then
echo "Created $cvsdir"
else
echo "Failed to create $cvsdir" >&2
exit 1
fi
fi
# Decide if gnulib_version is probably a date or probably a tag.
if date -d yesterday >/dev/null ; then
# It looks like GNU date is available
if date -d "$gnulib_version" >/dev/null ; then
# Looks like a date.
cvs_sticky_option="-D"
else
echo "Warning: assuming $gnulib_version is a CVS tag rather than a date" >&2
cvs_sticky_option="-r"
fi
else
# GNU date unavailable, assume the version is a date
cvs_sticky_option="-D"
fi
(
# Change directory unconditionally (rater than using checkout -d) so that
# cvs does not pick up defaults from ./CVS. Those defaults refer to our
# own CVS repository for our code, not to gnulib.
cd $cvsdir
if test -d gnulib/CVS ; then
cd gnulib
cmd=update
root="" # use previous
else
root="-d :pserver:anonymous@cvs.sv.gnu.org:/sources/gnulib"
cmd=checkout
args=gnulib
fi
set -x
cvs -q -z3 $root $cmd $cvs_sticky_option "$gnulib_version" $args
set +x
)
}
run_gnulib_tool() {
local tool="$1"
if test -f "$tool"
then
true
else
echo "$tool does not exist, did you specify the right directory?" >&2
exit 1
fi
if test -x "$tool"
then
true
else
echo "$tool is not executable" >&2
exit 1
fi
if [ -d gnulib ]
then
echo "Warning: directory gnulib already exists, removing it." >&2
rm -rf gnulib
fi
mkdir gnulib
set -x
if "$tool" --import --symlink --with-tests --dir=. --lib=libgnulib --source-base=gnulib/lib --m4-base=gnulib/m4 $modules
then
set +x
else
set +x
echo "$tool failed, exiting." >&2
exit 1
fi
}
hack_gnulib_tool_output() {
local gnulibdir="${1}"
for file in $extra_files; do
case $file in
*/mdate-sh | */texinfo.tex) dest=doc;;
*) dest=build-aux;;
esac
cp -fp "${gnulibdir}"/"$file" "$dest" || exit
done
cat > gnulib/Makefile.am <<EOF
# Copyright (C) 2004 Free Software Foundation, Inc.
#
# This file is free software, distributed under the terms of the GNU
# General Public License. As a special exception to the GNU General
# Public License, this file may be distributed as part of a program
# that contains a configuration script generated by Automake, under
# the same distribution terms as the rest of that program.
#
# This file was generated by $0 $@.
#
SUBDIRS = lib
EOF
}
refresh_output_files() {
aclocal -I m4 -I gnulib/m4 &&
autoheader &&
autoconf &&
automake --add-missing --copy
}
update_version_file() {
local ver
outfile="lib/gnulib-version.c"
if [ -z "$gnulib_version" ] ; then
ver="unknown (locally modified code; no version number available)"
else
ver="$gnulib_version"
fi
cat > "${outfile}".new <<EOF
/* This file is automatically generated by $0 and simply records which version of gnulib we used. */
const char * const gnulib_version = "$ver";
EOF
if test -f "$outfile" ; then
if diff "${outfile}".new "${outfile}" > /dev/null ; then
rm "${outfile}".new
return 0
fi
fi
mv "${outfile}".new "${outfile}"
}
main() {
## Option parsing
local gnulibdir=/doesnotexist
while getopts "d:" opt
do
case "$opt" in
d) gnulibdir="$OPTARG" ; need_checkout=no ;;
**) usage; exit 1;;
esac
done
# We need the config file to tell us which modules
# to use, even if we don't want to know the CVS version.
. $configfile || exit 1
## If -d was not given, do CVS checkout/update
if [ $need_checkout = yes ] ; then
do_checkout gnulib-cvs
gnulibdir=gnulib-cvs/gnulib
else
echo "Warning: using gnulib code which already exists in $gnulibdir" >&2
fi
## Invoke gnulib-tool to import the code.
local tool="${gnulibdir}"/gnulib-tool
if run_gnulib_tool "${tool}" &&
hack_gnulib_tool_output "${gnulibdir}" &&
refresh_output_files &&
update_version_file ; then
echo Done.
else
echo FAILED >&2
exit 1
fi
}
main "$@"
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