diff options
Diffstat (limited to 'third_party/nix/scripts/install-nix-from-closure.sh')
| -rw-r--r-- | third_party/nix/scripts/install-nix-from-closure.sh | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/third_party/nix/scripts/install-nix-from-closure.sh b/third_party/nix/scripts/install-nix-from-closure.sh new file mode 100644 index 0000000000..3f15818547 --- /dev/null +++ b/third_party/nix/scripts/install-nix-from-closure.sh @@ -0,0 +1,180 @@ +#!/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" ] && ! USER=$(id -u -n); then + echo "$0: \$USER is not set" >&2 + exit 1 +fi + +if [ -z "$HOME" ]; then + echo "$0: \$HOME is not set" >&2 + exit 1 +fi + +# macOS support for 10.12.6 or higher +if [ "$(uname -s)" = "Darwin" ]; then + macos_major=$(sw_vers -productVersion | cut -d '.' -f 2) + macos_minor=$(sw_vers -productVersion | cut -d '.' -f 3) + if [ "$macos_major" -lt 12 ] || { [ "$macos_major" -eq 12 ] && [ "$macos_minor" -lt 6 ]; }; then + echo "$0: macOS $(sw_vers -productVersion) is not supported, upgrade to 10.12.6 or higher" + exit 1 + fi +fi + +# Determine if we could use the multi-user installer or not +if [ "$(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 + +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 ! $nix/bin/nix-channel --update nixpkgs; then + echo "Fetching the nixpkgs channel failed. (Are you offline?)" + echo "To try again later, run \"nix-channel --update nixpkgs\"." + fi +fi + +added= +p=$HOME/.nix-profile/etc/profile.d/nix.sh +if [ -z "$NIX_INSTALLER_NO_MODIFY_PROFILE" ]; then + # Make the shell source nix.sh during login. + for i in .bash_profile .bash_login .profile; do + fn="$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 |