guix-devel/nix/sync-with-upstream

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#!/bin/sh
# GNU Guix --- Functional package management for GNU
# Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
#
# This file is part of GNU Guix.
#
# GNU Guix 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 3 of the License, or (at
# your option) any later version.
#
# GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
#
# Update the local copy of Nix source code needed to build the daemon.
# Assume GNU Coreutils and Git are available.
#
top_srcdir="${top_srcdir:-..}"
log()
{
echo "sync-with-upstream: $@" >&2
}
# checked_in_p FILE
checked_in_p()
{
( cd "$top_srcdir" ;
git ls-tree HEAD -- "nix/$1" | grep "$1" > /dev/null )
}
if [ ! -d "$top_srcdir/build-aux" ]
then
log "\`$top_srcdir' is not the valid top-level source directory"
exit 1
fi
set -e
for upstream_file in `cd "$top_srcdir/nix-upstream/src" ;
find . -name \*.c -or -name \*.h -or -name \*.cc -or -name \*.hh \
-or -name \*.cpp -or -name \*.hpp -or -name \*.sql`
do
if grep "$upstream_file" "$top_srcdir/daemon.am" > /dev/null
then
if checked_in_p "$upstream_file"
then
log "skipping \`$upstream_file', which has a checked-in copy"
else
( cd "$top_srcdir/nix-upstream/src" && \
cp -v --parents "$upstream_file" ../../nix )
fi
else
log "skipping \`$upstream_file', which is not used"
fi
done
# This file should be generated by our build system so remove it.
rm -fv "$top_srcdir/nix/libstore/schema.sql.hh"
cp -v "$top_srcdir/nix-upstream/COPYING" "$top_srcdir/nix"
# Generate an 'AUTHORS' file since upstream Nix no longer has one.
cat > "$top_srcdir/nix/AUTHORS" <<EOF
Most of the code is this directory was written by the following people for
the Nix project (http://nixos.org/nix). Thank you!
EOF
( cd "$top_srcdir/nix-upstream" ; git shortlog --summary ) \
| sed -'es/^ *[0-9]\+\(.*\)/ \1/g' \
>> "$top_srcdir/nix/AUTHORS"
# Substitutions.
sed -i "$top_srcdir/nix/libstore/gc.cc" \
-e 's|/nix/find-runtime-roots\.pl|/guix/list-runtime-roots|g'
# Our 'guix_hash_context' structure has a copy constructor, specifically to
# handle the use case in 'HashSink::currentHash()' where the copy of the
# context is expected to truly copy the underlying hash context. The copy
# constructor cannot be used in 'Ctx' if that's a union, so turn it into a
# structure (we can afford to two wasted words.)
sed -i "$top_srcdir/nix/libutil/hash.cc" "$top_srcdir/nix/libutil/hash.hh" \
-e 's|union Ctx|struct Ctx|g'