diff options
Diffstat (limited to 'third_party/nix/scripts/install-multi-user.sh')
| -rw-r--r-- | third_party/nix/scripts/install-multi-user.sh | 798 |
1 files changed, 0 insertions, 798 deletions
diff --git a/third_party/nix/scripts/install-multi-user.sh b/third_party/nix/scripts/install-multi-user.sh deleted file mode 100644 index 5233762fa6..0000000000 --- a/third_party/nix/scripts/install-multi-user.sh +++ /dev/null @@ -1,798 +0,0 @@ -#!/usr/bin/env bash - -set -eu -set -o pipefail - -# Sourced from: -# - https://github.com/LnL7/nix-darwin/blob/8c29d0985d74b4a990238497c47a2542a5616b3c/bootstrap.sh -# - https://gist.github.com/expipiplus1/e571ce88c608a1e83547c918591b149f/ac504c6c1b96e65505fbda437a28ce563408ecb0 -# - https://github.com/NixOS/nixos-org-configurations/blob/a122f418797713d519aadf02e677fce0dc1cb446/delft/scripts/nix-mac-installer.sh -# - https://github.com/matthewbauer/macNixOS/blob/f6045394f9153edea417be90c216788e754feaba/install-macNixOS.sh -# - https://gist.github.com/LnL7/9717bd6cdcb30b086fd7f2093e5f8494/86b26f852ce563e973acd30f796a9a416248c34a -# -# however tracking which bits came from which would be impossible. - -readonly ESC='\033[0m' -readonly BOLD='\033[1m' -readonly BLUE='\033[34m' -readonly BLUE_UL='\033[4;34m' -readonly GREEN='\033[32m' -readonly GREEN_UL='\033[4;32m' -readonly RED='\033[31m' - -readonly NIX_USER_COUNT="32" -readonly NIX_BUILD_GROUP_ID="30000" -readonly NIX_BUILD_GROUP_NAME="nixbld" -readonly NIX_FIRST_BUILD_UID="30001" -# Please don't change this. We don't support it, because the -# default shell profile that comes with Nix doesn't support it. -readonly NIX_ROOT="/nix" - -readonly PROFILE_TARGETS=("/etc/bashrc" "/etc/profile.d/nix.sh" "/etc/zshrc") -readonly PROFILE_BACKUP_SUFFIX=".backup-before-nix" -readonly PROFILE_NIX_FILE="$NIX_ROOT/var/nix/profiles/default/etc/profile.d/nix-daemon.sh" - -readonly NIX_INSTALLED_NIX="@nix@" -readonly NIX_INSTALLED_CACERT="@cacert@" -readonly EXTRACTED_NIX_PATH="$(dirname "$0")" - -readonly ROOT_HOME=$(echo ~root) - -if [ -t 0 ]; then - readonly IS_HEADLESS='no' -else - readonly IS_HEADLESS='yes' -fi - -headless() { - if [ "$IS_HEADLESS" = "yes" ]; then - return 0 - else - return 1 - fi -} - -contactme() { - echo "We'd love to help if you need it." - echo "" - echo "If you can, open an issue at https://github.com/nixos/nix/issues" - echo "" - echo "Or feel free to contact the team," - echo " - on IRC #nixos on irc.freenode.net" - echo " - on twitter @nixos_org" -} - -uninstall_directions() { - subheader "Uninstalling nix:" - local step=0 - - if poly_service_installed_check; then - step=$((step + 1)) - poly_service_uninstall_directions "$step" - fi - - for profile_target in "${PROFILE_TARGETS[@]}"; do - if [ -e "$profile_target" ] && [ -e "$profile_target$PROFILE_BACKUP_SUFFIX" ]; then - step=$((step + 1)) - cat <<EOF -$step. Restore $profile_target$PROFILE_BACKUP_SUFFIX back to $profile_target - - sudo mv $profile_target$PROFILE_BACKUP_SUFFIX $profile_target - -(after this one, you may need to re-open any terminals that were -opened while it existed.) - -EOF - fi - done - - step=$((step + 1)) - cat <<EOF -$step. Delete the files Nix added to your system: - - sudo rm -rf /etc/nix $NIX_ROOT $ROOT_HOME/.nix-profile $ROOT_HOME/.nix-defexpr $ROOT_HOME/.nix-channels $HOME/.nix-profile $HOME/.nix-defexpr $HOME/.nix-channels - -and that is it. - -EOF - -} - -nix_user_for_core() { - printf "nixbld%d" "$1" -} - -nix_uid_for_core() { - echo $((NIX_FIRST_BUILD_UID + $1 - 1)) -} - -_textout() { - echo -en "$1" - shift - if [ "$*" = "" ]; then - cat - else - echo "$@" - fi - echo -en "$ESC" -} - -header() { - follow="---------------------------------------------------------" - header=$(echo "---- $* $follow$follow$follow" | head -c 80) - echo "" - _textout "$BLUE" "$header" -} - -warningheader() { - follow="---------------------------------------------------------" - header=$(echo "---- $* $follow$follow$follow" | head -c 80) - echo "" - _textout "$RED" "$header" -} - -subheader() { - echo "" - _textout "$BLUE_UL" "$*" -} - -row() { - printf "$BOLD%s$ESC:\\t%s\\n" "$1" "$2" -} - -task() { - echo "" - ok "~~> $1" -} - -bold() { - echo "$BOLD$*$ESC" -} - -ok() { - _textout "$GREEN" "$@" -} - -warning() { - warningheader "warning!" - cat - echo "" -} - -failure() { - header "oh no!" - _textout "$RED" "$@" - echo "" - _textout "$RED" "$(contactme)" - trap finish_cleanup EXIT - exit 1 -} - -ui_confirm() { - _textout "$GREEN$GREEN_UL" "$1" - - if headless; then - echo "No TTY, assuming you would say yes :)" - return 0 - fi - - local prompt="[y/n] " - echo -n "$prompt" - while read -r y; do - if [ "$y" = "y" ]; then - echo "" - return 0 - elif [ "$y" = "n" ]; then - echo "" - return 1 - else - _textout "$RED" "Sorry, I didn't understand. I can only understand answers of y or n" - echo -n "$prompt" - fi - done - echo "" - return 1 -} - -__sudo() { - local expl="$1" - local cmd="$2" - shift - header "sudo execution" - - echo "I am executing:" - echo "" - printf " $ sudo %s\\n" "$cmd" - echo "" - echo "$expl" - echo "" - - return 0 -} - -_sudo() { - local expl="$1" - shift - if ! headless; then - __sudo "$expl" "$*" - fi - sudo "$@" -} - - -readonly SCRATCH=$(mktemp -d -t tmp.XXXXXXXXXX) -function finish_cleanup { - rm -rf "$SCRATCH" -} - -function finish_fail { - finish_cleanup - - failure <<EOF -Jeeze, something went wrong. If you can take all the output and open -an issue, we'd love to fix the problem so nobody else has this issue. - -:( -EOF -} -trap finish_fail EXIT - -channel_update_failed=0 -function finish_success { - finish_cleanup - - ok "Alright! We're done!" - if [ "x$channel_update_failed" = x1 ]; then - echo "" - echo "But fetching the nixpkgs channel failed. (Are you offline?)" - echo "To try again later, run \"sudo -i nix-channel --update nixpkgs\"." - fi - cat <<EOF - -Before Nix will work in your existing shells, you'll need to close -them and open them again. Other than that, you should be ready to go. - -Try it! Open a new terminal, and type: - - $ nix-shell -p nix-info --run "nix-info -m" - -Thank you for using this installer. If you have any feedback, don't -hesitate: - -$(contactme) -EOF -} - - -validate_starting_assumptions() { - poly_validate_assumptions - - if [ $EUID -eq 0 ]; then - failure <<EOF -Please do not run this script with root privileges. We will call sudo -when we need to. -EOF - fi - - if type nix-env 2> /dev/null >&2; then - failure <<EOF -Nix already appears to be installed, and this tool assumes it is -_not_ yet installed. - -$(uninstall_directions) -EOF - fi - - if [ "${NIX_REMOTE:-}" != "" ]; then - failure <<EOF -For some reason, \$NIX_REMOTE is set. It really should not be set -before this installer runs, and it hints that Nix is currently -installed. Please delete the old Nix installation and start again. - -Note: You might need to close your shell window and open a new shell -to clear the variable. -EOF - fi - - if echo "${SSL_CERT_FILE:-}" | grep -qE "(nix/var/nix|nix-profile)"; then - failure <<EOF -It looks like \$SSL_CERT_FILE is set to a path that used to be part of -the old Nix installation. Please unset that variable and try again: - - $ unset SSL_CERT_FILE - -EOF - fi - - for file in ~/.bash_profile ~/.bash_login ~/.profile ~/.zshenv ~/.zprofile ~/.zshrc ~/.zlogin; do - if [ -f "$file" ]; then - if grep -l "^[^#].*.nix-profile" "$file"; then - failure <<EOF -I found a reference to a ".nix-profile" in $file. -This has a high chance of breaking a new nix installation. It was most -likely put there by a previous Nix installer. - -Please remove this reference and try running this again. You should -also look for similar references in: - - - ~/.bash_profile - - ~/.bash_login - - ~/.profile - -or other shell init files that you may have. - -$(uninstall_directions) -EOF - fi - fi - done - - if [ -d /nix/store ] || [ -d /nix/var ]; then - failure <<EOF -There are some relics of a previous installation of Nix at /nix, and -this scripts assumes Nix is _not_ yet installed. Please delete the old -Nix installation and start again. - -$(uninstall_directions) -EOF - fi - - if [ -d /etc/nix ]; then - failure <<EOF -There are some relics of a previous installation of Nix at /etc/nix, and -this scripts assumes Nix is _not_ yet installed. Please delete the old -Nix installation and start again. - -$(uninstall_directions) -EOF - fi - - for profile_target in "${PROFILE_TARGETS[@]}"; do - if [ -e "$profile_target$PROFILE_BACKUP_SUFFIX" ]; then - failure <<EOF -When this script runs, it backs up the current $profile_target to -$profile_target$PROFILE_BACKUP_SUFFIX. This backup file already exists, though. - -Please follow these instructions to clean up the old backup file: - -1. Copy $profile_target and $profile_target$PROFILE_BACKUP_SUFFIX to another place, just -in case. - -2. Take care to make sure that $profile_target$PROFILE_BACKUP_SUFFIX doesn't look like -it has anything nix-related in it. If it does, something is probably -quite wrong. Please open an issue or get in touch immediately. - -3. Take care to make sure that $profile_target doesn't look like it has -anything nix-related in it. If it does, and $profile_target _did not_, -run: - - $ /usr/bin/sudo /bin/mv $profile_target$PROFILE_BACKUP_SUFFIX $profile_target - -and try again. -EOF - fi - - if [ -e "$profile_target" ] && grep -qi "nix" "$profile_target"; then - failure <<EOF -It looks like $profile_target already has some Nix configuration in -there. There should be no reason to run this again. If you're having -trouble, please open an issue. -EOF - fi - done - - danger_paths=("$ROOT_HOME/.nix-defexpr" "$ROOT_HOME/.nix-channels" "$ROOT_HOME/.nix-profile") - for danger_path in "${danger_paths[@]}"; do - if _sudo "making sure that $danger_path doesn't exist" \ - test -e "$danger_path"; then - failure <<EOF -I found a file at $danger_path, which is a relic of a previous -installation. You must first delete this file before continuing. - -$(uninstall_directions) -EOF - fi - done -} - -setup_report() { - header "Nix config report" - row " Temp Dir" "$SCRATCH" - row " Nix Root" "$NIX_ROOT" - row " Build Users" "$NIX_USER_COUNT" - row " Build Group ID" "$NIX_BUILD_GROUP_ID" - row "Build Group Name" "$NIX_BUILD_GROUP_NAME" - if [ "${ALLOW_PREEXISTING_INSTALLATION:-}" != "" ]; then - row "Preexisting Install" "Allowed" - fi - - subheader "build users:" - - row " Username" "UID" - for i in $(seq 1 "$NIX_USER_COUNT"); do - row " $(nix_user_for_core "$i")" "$(nix_uid_for_core "$i")" - done - echo "" -} - -create_build_group() { - local primary_group_id - - task "Setting up the build group $NIX_BUILD_GROUP_NAME" - if ! poly_group_exists "$NIX_BUILD_GROUP_NAME"; then - poly_create_build_group - row " Created" "Yes" - else - primary_group_id=$(poly_group_id_get "$NIX_BUILD_GROUP_NAME") - if [ "$primary_group_id" -ne "$NIX_BUILD_GROUP_ID" ]; then - failure <<EOF -It seems the build group $NIX_BUILD_GROUP_NAME already exists, but -with the UID $primary_group_id. This script can't really handle -that right now, so I'm going to give up. - -You can fix this by editing this script and changing the -NIX_BUILD_GROUP_ID variable near the top to from $NIX_BUILD_GROUP_ID -to $primary_group_id and re-run. -EOF - else - row " Exists" "Yes" - fi - fi -} - -create_build_user_for_core() { - local coreid - local username - local uid - - coreid="$1" - username=$(nix_user_for_core "$coreid") - uid=$(nix_uid_for_core "$coreid") - - task "Setting up the build user $username" - - if ! poly_user_exists "$username"; then - poly_create_build_user "$username" "$uid" "$coreid" - row " Created" "Yes" - else - actual_uid=$(poly_user_id_get "$username") - if [ "$actual_uid" != "$uid" ]; then - failure <<EOF -It seems the build user $username already exists, but with the UID -with the UID '$actual_uid'. This script can't really handle that right -now, so I'm going to give up. - -If you already created the users and you know they start from -$actual_uid and go up from there, you can edit this script and change -NIX_FIRST_BUILD_UID near the top of the file to $actual_uid and try -again. -EOF - else - row " Exists" "Yes" - fi - fi - - if [ "$(poly_user_hidden_get "$username")" = "1" ]; then - row " Hidden" "Yes" - else - poly_user_hidden_set "$username" - row " Hidden" "Yes" - fi - - if [ "$(poly_user_home_get "$username")" = "/var/empty" ]; then - row " Home Directory" "/var/empty" - else - poly_user_home_set "$username" "/var/empty" - row " Home Directory" "/var/empty" - fi - - # We use grep instead of an equality check because it is difficult - # to extract _just_ the user's note, instead it is prefixed with - # some plist junk. This was causing the user note to always be set, - # even if there was no reason for it. - if ! poly_user_note_get "$username" | grep -q "Nix build user $coreid"; then - row " Note" "Nix build user $coreid" - else - poly_user_note_set "$username" "Nix build user $coreid" - row " Note" "Nix build user $coreid" - fi - - if [ "$(poly_user_shell_get "$username")" = "/sbin/nologin" ]; then - row " Logins Disabled" "Yes" - else - poly_user_shell_set "$username" "/sbin/nologin" - row " Logins Disabled" "Yes" - fi - - if poly_user_in_group_check "$username" "$NIX_BUILD_GROUP_NAME"; then - row " Member of $NIX_BUILD_GROUP_NAME" "Yes" - else - poly_user_in_group_set "$username" "$NIX_BUILD_GROUP_NAME" - row " Member of $NIX_BUILD_GROUP_NAME" "Yes" - fi - - if [ "$(poly_user_primary_group_get "$username")" = "$NIX_BUILD_GROUP_ID" ]; then - row " PrimaryGroupID" "$NIX_BUILD_GROUP_ID" - else - poly_user_primary_group_set "$username" "$NIX_BUILD_GROUP_ID" - row " PrimaryGroupID" "$NIX_BUILD_GROUP_ID" - fi -} - -create_build_users() { - for i in $(seq 1 "$NIX_USER_COUNT"); do - create_build_user_for_core "$i" - done -} - -create_directories() { - # FIXME: remove all of this because it duplicates LocalStore::LocalStore(). - - _sudo "to make the basic directory structure of Nix (part 1)" \ - mkdir -pv -m 0755 /nix /nix/var /nix/var/log /nix/var/log/nix /nix/var/log/nix/drvs /nix/var/nix{,/db,/gcroots,/profiles,/temproots,/userpool} /nix/var/nix/{gcroots,profiles}/per-user - - _sudo "to make the basic directory structure of Nix (part 2)" \ - mkdir -pv -m 1775 /nix/store - - _sudo "to make the basic directory structure of Nix (part 3)" \ - chgrp "$NIX_BUILD_GROUP_NAME" /nix/store - - _sudo "to place the default nix daemon configuration (part 1)" \ - mkdir -pv -m 0555 /etc/nix -} - -place_channel_configuration() { - echo "https://nixos.org/channels/nixpkgs-unstable nixpkgs" > "$SCRATCH/.nix-channels" - _sudo "to set up the default system channel (part 1)" \ - install -m 0664 "$SCRATCH/.nix-channels" "$ROOT_HOME/.nix-channels" -} - -welcome_to_nix() { - ok "Welcome to the Multi-User Nix Installation" - - cat <<EOF - -This installation tool will set up your computer with the Nix package -manager. This will happen in a few stages: - -1. Make sure your computer doesn't already have Nix. If it does, I - will show you instructions on how to clean up your old one. - -2. Show you what we are going to install and where. Then we will ask - if you are ready to continue. - -3. Create the system users and groups that the Nix daemon uses to run - builds. - -4. Perform the basic installation of the Nix files daemon. - -5. Configure your shell to import special Nix Profile files, so you - can use Nix. - -6. Start the Nix daemon. - -EOF - - if ui_confirm "Would you like to see a more detailed list of what we will do?"; then - cat <<EOF - -We will: - - - make sure your computer doesn't already have Nix files - (if it does, I will tell you how to clean them up.) - - create local users (see the list above for the users we'll make) - - create a local group ($NIX_BUILD_GROUP_NAME) - - install Nix in to $NIX_ROOT - - create a configuration file in /etc/nix - - set up the "default profile" by creating some Nix-related files in - $ROOT_HOME -EOF - for profile_target in "${PROFILE_TARGETS[@]}"; do - if [ -e "$profile_target" ]; then - cat <<EOF - - back up $profile_target to $profile_target$PROFILE_BACKUP_SUFFIX - - update $profile_target to include some Nix configuration -EOF - fi - done - poly_service_setup_note - if ! ui_confirm "Ready to continue?"; then - failure <<EOF -Okay, maybe you would like to talk to the team. -EOF - fi - fi -} - -chat_about_sudo() { - header "let's talk about sudo" - - if headless; then - cat <<EOF -This script is going to call sudo a lot. Normally, it would show you -exactly what commands it is running and why. However, the script is -run in a headless fashion, like this: - - $ curl https://nixos.org/nix/install | sh - -or maybe in a CI pipeline. Because of that, we're going to skip the -verbose output in the interest of brevity. - -If you would like to -see the output, try like this: - - $ curl -o install-nix https://nixos.org/nix/install - $ sh ./install-nix - -EOF - return 0 - fi - - cat <<EOF -This script is going to call sudo a lot. Every time we do, it'll -output exactly what it'll do, and why. - -Just like this: -EOF - - __sudo "to demonstrate how our sudo prompts look" \ - echo "this is a sudo prompt" - - cat <<EOF - -This might look scary, but everything can be undone by running just a -few commands. We used to ask you to confirm each time sudo ran, but it -was too many times. Instead, I'll just ask you this one time: - -EOF - if ui_confirm "Can we use sudo?"; then - ok "Yay! Thanks! Let's get going!" - else - failure <<EOF -That is okay, but we can't install. -EOF - fi -} - -install_from_extracted_nix() { - ( - cd "$EXTRACTED_NIX_PATH" - - _sudo "to copy the basic Nix files to the new store at $NIX_ROOT/store" \ - rsync -rlpt ./store/* "$NIX_ROOT/store/" - - if [ -d "$NIX_INSTALLED_NIX" ]; then - echo " Alright! We have our first nix at $NIX_INSTALLED_NIX" - else - failure <<EOF -Something went wrong, and I didn't find Nix installed at -$NIX_INSTALLED_NIX. -EOF - fi - - cat ./.reginfo \ - | _sudo "to load data for the first time in to the Nix Database" \ - "$NIX_INSTALLED_NIX/bin/nix-store" --load-db - - echo " Just finished getting the nix database ready." - ) -} - -shell_source_lines() { - cat <<EOF - -# Nix -if [ -e '$PROFILE_NIX_FILE' ]; then - . '$PROFILE_NIX_FILE' -fi -# End Nix - -EOF -} - -configure_shell_profile() { - # If there is an /etc/profile.d directory, we want to ensure there - # is a nix.sh within it, so we can use the following loop to add - # the source lines to it. Note that I'm _not_ adding the source - # lines here, because we want to be using the regular machinery. - # - # If we go around that machinery, it becomes more complicated and - # adds complications to the uninstall instruction generator and - # old instruction sniffer as well. - if [ -d /etc/profile.d ]; then - _sudo "create a stub /etc/profile.d/nix.sh which will be updated" \ - touch /etc/profile.d/nix.sh - fi - - for profile_target in "${PROFILE_TARGETS[@]}"; do - if [ -e "$profile_target" ]; then - _sudo "to back up your current $profile_target to $profile_target$PROFILE_BACKUP_SUFFIX" \ - cp "$profile_target" "$profile_target$PROFILE_BACKUP_SUFFIX" - - shell_source_lines \ - | _sudo "extend your $profile_target with nix-daemon settings" \ - tee -a "$profile_target" - fi - done -} - -setup_default_profile() { - _sudo "to installing a bootstrapping Nix in to the default Profile" \ - HOME="$ROOT_HOME" "$NIX_INSTALLED_NIX/bin/nix-env" -i "$NIX_INSTALLED_NIX" - - if [ -z "${NIX_SSL_CERT_FILE:-}" ] || ! [ -f "${NIX_SSL_CERT_FILE:-}" ]; then - _sudo "to installing a bootstrapping SSL certificate just for Nix in to the default Profile" \ - HOME="$ROOT_HOME" "$NIX_INSTALLED_NIX/bin/nix-env" -i "$NIX_INSTALLED_CACERT" - export NIX_SSL_CERT_FILE=/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt - fi - - # Have to explicitly pass NIX_SSL_CERT_FILE as part of the sudo call, - # otherwise it will be lost in environments where sudo doesn't pass - # all the environment variables by default. - _sudo "to update the default channel in the default profile" \ - HOME="$ROOT_HOME" NIX_SSL_CERT_FILE="$NIX_SSL_CERT_FILE" "$NIX_INSTALLED_NIX/bin/nix-channel" --update nixpkgs \ - || channel_update_failed=1 - -} - - -place_nix_configuration() { - cat <<EOF > "$SCRATCH/nix.conf" -build-users-group = $NIX_BUILD_GROUP_NAME -EOF - _sudo "to place the default nix daemon configuration (part 2)" \ - install -m 0664 "$SCRATCH/nix.conf" /etc/nix/nix.conf -} - -main() { - if [ "$(uname -s)" = "Darwin" ]; then - # shellcheck source=./install-darwin-multi-user.sh - . "$EXTRACTED_NIX_PATH/install-darwin-multi-user.sh" - elif [ "$(uname -s)" = "Linux" ]; then - if [ -e /run/systemd/system ]; then - # shellcheck source=./install-systemd-multi-user.sh - . "$EXTRACTED_NIX_PATH/install-systemd-multi-user.sh" - else - failure "Sorry, the multi-user installation requires systemd on Linux (detected using /run/systemd/system)" - fi - else - failure "Sorry, I don't know what to do on $(uname)" - fi - - welcome_to_nix - chat_about_sudo - - if [ "${ALLOW_PREEXISTING_INSTALLATION:-}" = "" ]; then - validate_starting_assumptions - fi - - setup_report - - if ! ui_confirm "Ready to continue?"; then - ok "Alright, no changes have been made :)" - contactme - trap finish_cleanup EXIT - exit 1 - fi - - create_build_group - create_build_users - create_directories - place_channel_configuration - install_from_extracted_nix - - configure_shell_profile - - set +eu - . /etc/profile - set -eu - - setup_default_profile - place_nix_configuration - poly_configure_nix_daemon_service - - trap finish_success EXIT -} - - -main |