2921165a9d
- darwin installer: delete hardware report, not necessary - moves os-specific code from the darwin installer to to `poly_*` functions - adds profile.d support to the profile targets, which automatically handles many distros which don't have a /etc/bashrc but do have an /etc/profile.d - /bin/bash -> /usr/bin/env bash - document why each excluded shellcheck check is excluded - rename the multi-user to Daemon-based
154 lines
3.5 KiB
Bash
154 lines
3.5 KiB
Bash
#!/usr/bin/env bash
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set -eu
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set -o pipefail
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readonly SERVICE_SRC=/lib/systemd/system/nix-daemon.service
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readonly SERVICE_DEST=/etc/systemd/system/nix-daemon.service
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readonly SOCKET_SRC=/lib/systemd/system/nix-daemon.socket
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readonly SOCKET_DEST=/etc/systemd/system/nix-daemon.socket
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poly_validate_assumptions() {
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if [ "$(uname -s)" != "Linux" ]; then
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failure "This script is for use with Linux!"
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fi
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}
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poly_service_installed_check() {
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[ "$(systemctl is-enabled nix-daemon.service)" = "linked" ] \
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|| [ "$(systemctl is-enabled nix-daemon.socket)" = "enabled" ]
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}
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poly_service_uninstall_directions() {
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cat <<EOF
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$1. Delete the systemd service and socket units
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sudo systemctl stop nix-daemon.socket
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sudo systemctl stop nix-daemon.service
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sudo systemctl disable nix-daemon.socket
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sudo systemctl disable nix-daemon.service
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sudo systemctl daemon-reload
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EOF
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}
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poly_service_setup_note() {
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cat <<EOF
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- load and start a service (at $SERVICE_DEST
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and $SOCKET_DEST) for nix-daemon
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EOF
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}
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poly_configure_nix_daemon_service() {
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_sudo "to set up the nix-daemon service" \
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systemctl link "/nix/var/nix/profiles/default$SERVICE_SRC"
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_sudo "to set up the nix-daemon socket service" \
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systemctl enable "/nix/var/nix/profiles/default$SOCKET_SRC"
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_sudo "to load the systemd unit for nix-daemon" \
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systemctl daemon-reload
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_sudo "to start the nix-daemon.socket" \
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systemctl start nix-daemon.socket
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_sudo "to start the nix-daemon.service" \
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systemctl start nix-daemon.service
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}
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poly_group_exists() {
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getent group "$1" > /dev/null 2>&1
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}
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poly_group_id_get() {
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getent group "$1" | cut -d: -f3
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}
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poly_create_build_group() {
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_sudo "Create the Nix build group, $NIX_BUILD_GROUP_NAME" \
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groupadd -g "$NIX_BUILD_GROUP_ID" --system \
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"$NIX_BUILD_GROUP_NAME" >&2
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}
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poly_user_exists() {
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getent passwd "$1" > /dev/null 2>&1
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}
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poly_user_id_get() {
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getent passwd "$1" | cut -d: -f3
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}
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poly_user_hidden_get() {
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echo "1"
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}
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poly_user_hidden_set() {
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true
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}
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poly_user_home_get() {
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getent passwd "$1" | cut -d: -f6
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}
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poly_user_home_set() {
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_sudo "in order to give $1 a safe home directory" \
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usermod --home "$2" "$1"
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}
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poly_user_note_get() {
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getent passwd "$1" | cut -d: -f5
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}
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poly_user_note_set() {
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_sudo "in order to give $1 a useful comment" \
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usermod --comment "$2" "$1"
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}
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poly_user_shell_get() {
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getent passwd "$1" | cut -d: -f7
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}
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poly_user_shell_set() {
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_sudo "in order to prevent $1 from logging in" \
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usermod --shell "$2" "$1"
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}
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poly_user_in_group_check() {
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groups "$1" | grep -q "$2" > /dev/null 2>&1
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}
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poly_user_in_group_set() {
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_sudo "Add $1 to the $2 group"\
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usermod --append --groups "$2" "$1"
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}
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poly_user_primary_group_get() {
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getent passwd "$1" | cut -d: -f4
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}
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poly_user_primary_group_set() {
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_sudo "to let the nix daemon use this user for builds (this might seem redundant, but there are two concepts of group membership)" \
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usermod --gid "$2" "$1"
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}
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poly_create_build_user() {
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username=$1
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uid=$2
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builder_num=$3
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_sudo "Creating the Nix build user, $username" \
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useradd \
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--home-dir /var/empty \
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--comment "Nix build user $builder_num" \
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--gid "$NIX_BUILD_GROUP_ID" \
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--groups "$NIX_BUILD_GROUP_NAME" \
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--no-user-group \
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--system \
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--shell /sbin/nologin \
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--uid "$uid" \
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--password "!" \
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"$username"
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}
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