forked from lix-project/lix
0726ad5825
Starting macOS 10.15 /nix can't be creasted directly anymore due to the readonly filesystem, but synthetic.conf was introduced to enable creating mountpoints or symlinks for special usecases like package managers.
223 lines
7.3 KiB
Bash
223 lines
7.3 KiB
Bash
#!/bin/sh
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set -e
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dest="/nix"
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self="$(dirname "$0")"
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nix="@nix@"
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cacert="@cacert@"
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if ! [ -e "$self/.reginfo" ]; then
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echo "$0: incomplete installer (.reginfo is missing)" >&2
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fi
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if [ -z "$USER" ] && ! USER=$(id -u -n); then
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echo "$0: \$USER is not set" >&2
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exit 1
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fi
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if [ -z "$HOME" ]; then
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echo "$0: \$HOME is not set" >&2
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exit 1
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fi
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# macOS support for 10.12.6 or higher
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if [ "$(uname -s)" = "Darwin" ]; then
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macos_major=$(sw_vers -productVersion | cut -d '.' -f 2)
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macos_minor=$(sw_vers -productVersion | cut -d '.' -f 3)
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if [ "$macos_major" -lt 12 ] || { [ "$macos_major" -eq 12 ] && [ "$macos_minor" -lt 6 ]; }; then
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echo "$0: macOS $(sw_vers -productVersion) is not supported, upgrade to 10.12.6 or higher"
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exit 1
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fi
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fi
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# Determine if we could use the multi-user installer or not
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if [ "$(uname -s)" = "Darwin" ]; then
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echo "Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation" >&2
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elif [ "$(uname -s)" = "Linux" ] && [ -e /run/systemd/system ]; then
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echo "Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation" >&2
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fi
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INSTALL_MODE=no-daemon
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CREATE_DARWIN_VOLUME=0
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# handle the command line flags
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while [ $# -gt 0 ]; do
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case $1 in
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--daemon)
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INSTALL_MODE=daemon;;
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--no-daemon)
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INSTALL_MODE=no-daemon;;
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--no-channel-add)
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NIX_INSTALLER_NO_CHANNEL_ADD=1;;
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--no-modify-profile)
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NIX_INSTALLER_NO_MODIFY_PROFILE=1;;
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--create-volume)
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CREATE_DARWIN_VOLUME=1;;
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*)
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(
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echo "Nix Installer [--daemon|--no-daemon] [--no-channel-add] [--no-modify-profile]"
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echo "Choose installation method."
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echo ""
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echo " --daemon: Installs and configures a background daemon that manages the store,"
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echo " providing multi-user support and better isolation for local builds."
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echo " Both for security and reproducibility, this method is recommended if"
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echo " supported on your platform."
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echo " See https://nixos.org/nix/manual/#sect-multi-user-installation"
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echo ""
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echo " --no-daemon: Simple, single-user installation that does not require root and is"
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echo " trivial to uninstall."
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echo " (default)"
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echo ""
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echo " --no-channel-add: Don't add any channels. nixpkgs-unstable is installed by default."
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echo ""
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echo " --no-modify-profile: Skip channel installation. When not provided nixpkgs-unstable"
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echo " is installed by default."
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echo ""
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) >&2
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if [ "$(uname -s)" = "Darwin" ]; then
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(
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echo " --create-volume: Create an APFS volume for the store and create the /nix"
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echo " mountpoint for it using synthetic.conf."
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echo " (required on macOS >=10.15)"
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echo " See https://nixos.org/nix/manual/#sect-darwin-apfs-volume"
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echo ""
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) >&2
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fi
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exit;;
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esac
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shift
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done
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if [ "$(uname -s)" = "Darwin" ] && [ "$CREATE_DARWIN_VOLUME" = 1 ]; then
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printf '\e[1;31mCreating volume and mountpoint /nix.\e[0m\n'
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"$self/create-darwin-volume.sh"
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fi
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if [ "$INSTALL_MODE" = "daemon" ]; then
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printf '\e[1;31mSwitching to the Daemon-based Installer\e[0m\n'
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exec "$self/install-multi-user"
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exit 0
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fi
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if [ "$(id -u)" -eq 0 ]; then
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printf '\e[1;31mwarning: installing Nix as root is not supported by this script!\e[0m\n'
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fi
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echo "performing a single-user installation of Nix..." >&2
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if ! [ -e $dest ]; then
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cmd="mkdir -m 0755 $dest && chown $USER $dest"
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echo "directory $dest does not exist; creating it by running '$cmd' using sudo" >&2
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if ! sudo sh -c "$cmd"; then
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echo "$0: please manually run '$cmd' as root to create $dest" >&2
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if [ "$(uname -s)" = "Darwin" ]; then
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(
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echo ""
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echo "Installing on macOS >=10.15 requires relocating the store to an apfs volume."
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echo "Use --create-volume or run the preparation steps manually."
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echo "See https://nixos.org/nix/manual/#sect-darwin-apfs-volume."
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echo ""
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) >&2
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fi
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exit 1
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fi
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fi
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if ! [ -w $dest ]; then
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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 https://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
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exit 1
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fi
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mkdir -p $dest/store
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printf "copying Nix to %s..." "${dest}/store" >&2
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for i in $(cd "$self/store" >/dev/null && echo ./*); do
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printf "." >&2
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i_tmp="$dest/store/$i.$$"
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if [ -e "$i_tmp" ]; then
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rm -rf "$i_tmp"
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fi
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if ! [ -e "$dest/store/$i" ]; then
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cp -RPp "$self/store/$i" "$i_tmp"
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chmod -R a-w "$i_tmp"
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chmod +w "$i_tmp"
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mv "$i_tmp" "$dest/store/$i"
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chmod -w "$dest/store/$i"
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fi
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done
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echo "" >&2
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if ! "$nix/bin/nix-store" --load-db < "$self/.reginfo"; then
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echo "$0: unable to register valid paths" >&2
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exit 1
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fi
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. "$nix/etc/profile.d/nix.sh"
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if ! "$nix/bin/nix-env" -i "$nix"; then
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echo "$0: unable to install Nix into your default profile" >&2
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exit 1
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fi
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# Install an SSL certificate bundle.
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if [ -z "$NIX_SSL_CERT_FILE" ] || ! [ -f "$NIX_SSL_CERT_FILE" ]; then
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$nix/bin/nix-env -i "$cacert"
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export NIX_SSL_CERT_FILE="$HOME/.nix-profile/etc/ssl/certs/ca-bundle.crt"
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fi
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# Subscribe the user to the Nixpkgs channel and fetch it.
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if [ -z "$NIX_INSTALLER_NO_CHANNEL_ADD" ]; then
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if ! $nix/bin/nix-channel --list | grep -q "^nixpkgs "; then
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$nix/bin/nix-channel --add https://nixos.org/channels/nixpkgs-unstable
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fi
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if [ -z "$_NIX_INSTALLER_TEST" ]; then
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if ! $nix/bin/nix-channel --update nixpkgs; then
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echo "Fetching the nixpkgs channel failed. (Are you offline?)"
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echo "To try again later, run \"nix-channel --update nixpkgs\"."
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fi
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fi
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fi
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added=
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p=$HOME/.nix-profile/etc/profile.d/nix.sh
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if [ -z "$NIX_INSTALLER_NO_MODIFY_PROFILE" ]; then
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# Make the shell source nix.sh during login.
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for i in .bash_profile .bash_login .profile; do
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fn="$HOME/$i"
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if [ -w "$fn" ]; then
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if ! grep -q "$p" "$fn"; then
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echo "modifying $fn..." >&2
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echo "if [ -e $p ]; then . $p; fi # added by Nix installer" >> "$fn"
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fi
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added=1
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break
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fi
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done
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fi
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if [ -z "$added" ]; then
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cat >&2 <<EOF
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Installation finished! To ensure that the necessary environment
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variables are set, please add the line
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. $p
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to your shell profile (e.g. ~/.profile).
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EOF
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else
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cat >&2 <<EOF
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Installation finished! To ensure that the necessary environment
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variables are set, either log in again, or type
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. $p
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in your shell.
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EOF
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fi
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