nixpkgs/installer/nixos-checkout.sh
Eelco Dolstra ebb43a3f67 * Make the location of Nixpkgs a function argument (defaulting
to ../../nixpkgs).  This makes the "pkgs" symlink under the 
  nixos checkout unnecessary.

svn path=/nixos/trunk/; revision=11989
2008-06-05 15:33:17 +00:00

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#! @shell@ -e
set -x
# Pull the manifests defined in the configuration (the "manifests"
# attribute). Wonderfully hacky *and* cut&pasted from nixos-installer.sh!!!
if test -z "$NIXOS"; then NIXOS=/etc/nixos/nixos; fi
if test -z "$NIXOS_NO_PULL"; then
manifests=$(nix-instantiate --eval-only --xml --strict $NIXOS -A manifests \
| grep '<string' | sed 's^.*"\(.*\)".*^\1^g')
mkdir -p /nix/var/nix/channel-cache
for i in $manifests; do
NIX_DOWNLOAD_CACHE=/nix/var/nix/channel-cache nix-pull $i || true
done
fi
# Obtain Subversion.
if test -z "$(type -tp svn)"; then
#nix-channel --add http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable
#nix-channel --update
nix-env -i subversion
fi
cd /etc/nixos
if test -n "$NIXOS" && test "$NIXOS_BRANCH" = 1 && test -z "$CHECKOUT_BRANCH" && ! test "$NIXOS" = "/etc/nixos/nixos"; then
CHECKOUT_BRANCH=${NIXOS##*/}
CHECKOUT_BRANCH=${CHECKOUT_BRANCH#nixos-}
CHECKOUT_BRANCH=branches/${CHECKOUT_BRANCH}
CHECKOUT_SUFFIX=-${CHECKOUT_BRANCH##*/}
fi
if test -n "${CHECKOUT_BRANCH}" && test -z "${CHECKOUT_SUFFIX}" ; then
CHECKOUT_SUFFIX=-${CHECKOUT_BRANCH##*/}
fi;
# Move any old nixos or nixpkgs directories out of the way.
backupTimestamp=$(date "+%Y%m%d%H%M%S")
if test -e nixos -a ! -e nixos/.svn; then
mv nixos${CHECKOUT_SUFFIX} nixos-$backupTimestamp
fi
if test -e nixpkgs -a ! -e nixpkgs/.svn; then
mv nixpkgs${CHECKOUT_SUFFIX} nixpkgs-$backupTimestamp
fi
if test -e services -a ! -e services/.svn; then
mv nixos/services services-$backupTimestamp
fi
# Check out the NixOS and Nixpkgs sources.
svn co https://svn.nixos.org/repos/nix/nixos/trunk nixos${CHECKOUT_SUFFIX}
svn co https://svn.nixos.org/repos/nix/nixpkgs/${CHECKOUT_BRANCH:-trunk} nixpkgs${CHECKOUT_SUFFIX}
svn co https://svn.nixos.org/repos/nix/services/trunk services
# Add a few required symlink.
ln -sfn ../services nixos${CHECKOUT_SUFFIX}/services
REVISION=$(svn info nixpkgs${CHECKOUT_SUFFIX} | egrep '^Revision: ');
REVISION=${REVISION#Revision: };
echo "\"$REVISION\"" > version.nix