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|
#!/bin/sh
set -e
dest="/nix"
self="$(dirname "$0")"
nix="@nix@"
cacert="@cacert@"
if ! [ -e "$self/.reginfo" ]; then
echo "$0: incomplete installer (.reginfo is missing)" >&2
fi
if [ -z "$USER" ]; then
echo "$0: \$USER is not set" >&2
exit 1
fi
if [ -z "$HOME" ]; then
echo "$0: \$HOME is not set" >&2
exit 1
fi
# macOS support for 10.10 or higher
if [ "$(uname -s)" = "Darwin" ]; then
if [ $(($(sw_vers -productVersion | cut -d '.' -f 2))) -lt 10 ]; then
echo "$0: macOS $(sw_vers -productVersion) is not supported, upgrade to 10.10 or higher"
exit 1
fi
fi
# Determine if we could use the multi-user installer or not
if [ "$(uname -s)" = "Darwin" ]; then
echo "Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation" >&2
elif [ "$(uname -s)" = "Linux" ] && [ -e /run/systemd/system ]; then
echo "Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation" >&2
fi
INSTALL_MODE=no-daemon
# Trivially handle the --daemon / --no-daemon options
if [ "x${1:-}" = "x--no-daemon" ]; then
INSTALL_MODE=no-daemon
elif [ "x${1:-}" = "x--daemon" ]; then
INSTALL_MODE=daemon
elif [ "x${1:-}" != "x" ]; then
(
echo "Nix Installer [--daemon|--no-daemon]"
echo "Choose installation method."
echo ""
echo " --daemon: Installs and configures a background daemon that manages the store,"
echo " providing multi-user support and better isolation for local builds."
echo " Both for security and reproducibility, this method is recommended if"
echo " supported on your platform."
echo " See https://nixos.org/nix/manual/#sect-multi-user-installation"
echo ""
echo " --no-daemon: Simple, single-user installation that does not require root and is"
echo " trivial to uninstall."
echo " (default)"
echo ""
) >&2
exit
fi
if [ "$INSTALL_MODE" = "daemon" ]; then
printf '\e[1;31mSwitching to the Daemon-based Installer\e[0m\n'
exec "$self/install-multi-user"
exit 0
fi
if [ "$(id -u)" -eq 0 ]; then
printf '\e[1;31mwarning: installing Nix as root is not supported by this script!\e[0m\n'
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. This could indicate that another user has already performed a single-user installation of Nix on this system. If you wish to enable multi-user support see http://nixos.org/nix/manual/#ssec-multi-user. If you wish to continue with a single-user install for $USER please run 'chown -R $USER $dest' as root." >&2
exit 1
fi
mkdir -p $dest/store
printf "copying Nix to %s..." "${dest}/store" >&2
for i in $(cd "$self/store" >/dev/null && echo ./*); do
printf "." >&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" "$i_tmp"
chmod -R a-w "$i_tmp"
chmod +w "$i_tmp"
mv "$i_tmp" "$dest/store/$i"
chmod -w "$dest/store/$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 "$0: unable to install Nix into your default profile" >&2
exit 1
fi
# Install an SSL certificate bundle.
if [ -z "$NIX_SSL_CERT_FILE" ] || ! [ -f "$NIX_SSL_CERT_FILE" ]; then
$nix/bin/nix-env -i "$cacert"
export NIX_SSL_CERT_FILE="$HOME/.nix-profile/etc/ssl/certs/ca-bundle.crt"
fi
# Subscribe the user to the Nixpkgs channel and fetch it.
if ! $nix/bin/nix-channel --list | grep -q "^nixpkgs "; then
$nix/bin/nix-channel --add https://nixos.org/channels/nixpkgs-unstable
fi
if [ -z "$_NIX_INSTALLER_TEST" ]; then
if ! $nix/bin/nix-channel --update nixpkgs; then
echo "Fetching the nixpkgs channel failed. (Are you offline?)"
echo "To try again later, run \"nix-channel --update nixpkgs\"."
fi
fi
added=
if [ -z "$NIX_INSTALLER_NO_MODIFY_PROFILE" ]; then
# Make the shell source nix.sh during login.
p=$HOME/.nix-profile/etc/profile.d/nix.sh
for i in .bash_profile .bash_login .profile; do
fn="$HOME/$i"
if [ -w "$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
fi
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
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