#! /usr/bin/env bash set -e dest="/nix" self="$(dirname "$0")" nix="@nix@" if ! [ -e $self/.reginfo ]; then echo "$0: incomplete installer (.reginfo is missing)" >&2 exit 1 fi if [ -z "$USER" ]; then echo "$0: \$USER is not set" >&2 exit 1 fi if [ "$(id -u)" -eq 0 ]; then echo "warning: installing Nix as root is not recommended" >&2 fi echo "performing a single-user installation of Nix..." >&2 if ! [ -e $dest ]; then cmd="mkdir -m 0755 $dest && chown $USER $dest" echo "directory $dest does not exist; creating it by running \`$cmd' using sudo" >&2 if ! sudo sh -c "$cmd"; then echo "$0: please manually run \`$cmd' as root to create $dest" >&2 exit 1 fi fi if ! [ -w $dest ]; then echo "$0: directory $dest exists, but is not writable by you; please run \`chown -R $USER $dest' as root" >&2 exit 1 fi mkdir -p $dest/store echo -n "copying Nix to $dest/store..." >&2 for i in $(cd $self/store && echo *); do echo -n "." >&2 i_tmp="$dest/store/$i.$$" if [ -e "$i_tmp" ]; then rm -rf "$i_tmp" fi if ! [ -e "$dest/store/$i" ]; then cp -Rp "$self/store/$i" "$i_tmp" mv "$i_tmp" "$dest/store/$i" fi done echo "" >&2 echo "initialising Nix database..." >&2 if ! $nix/bin/nix-store --init; then echo "$0: failed to initialize the Nix database" >&2 exit 1 fi if ! $nix/bin/nix-store --load-db < $self/.reginfo; then echo "$0: unable to register valid paths" >&2 exit 1 fi . $nix/etc/profile.d/nix.sh if ! $nix/bin/nix-env -i $nix; then echo "$0: unable to install Nix into your default profile" >&2 exit 1 fi # Subscribe the user to the Nixpkgs channel and fetch it. if ! $nix/bin/nix-channel --list | grep -q "^nixpkgs "; then $nix/bin/nix-channel --add http://nixos.org/channels/nixpkgs-unstable fi $nix/bin/nix-channel --update nixpkgs # Make the shell source nix.sh during login. p=$NIX_LINK/etc/profile.d/nix.sh added= for i in .bash_profile .bash_login .profile; do fn="$HOME/$i" if [ -e "$fn" ]; then if ! grep -q "$p" "$fn"; then echo "modifying $fn..." >&2 echo "if [ -e $p ]; then . $p; fi # added by Nix installer" >> $fn fi added=1 break fi done if [ -z "$added" ]; then cat >&2 <<EOF Installation finished! To ensure that the necessary environment variables are set, please add the line . $p to your shell profile (e.g. ~/.profile). EOF else cat >&2 <<EOF Installation finished! To ensure that the necessary environment variables are set, either log in again, or type . $p in your shell. EOF fi