92 lines
2.7 KiB
Bash
Executable File
92 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eo pipefail
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GIT_ROOT=$(cd "${BASH_SOURCE%/*}" && git rev-parse --show-toplevel)
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# Checking group ownership to identify installation type.
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file_group() {
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UNAME=$(uname -s)
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if [[ "${UNAME}" == "Linux" ]]; then
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stat -Lc "%G" "${1}" 2>/dev/null
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elif [[ "${UNAME}" == "Darwin" ]]; then
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# Avoid using Nix GNU stat when in Nix shell.
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/usr/bin/stat -Lf "%Sg" "${1}" 2>/dev/null
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fi
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}
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os_name() {
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source /etc/os-release 2>/dev/null
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echo "${NAME}"
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}
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is_arch_linux() {
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[[ -f /etc/arch-release ]]
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}
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nix_install_type() {
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NIX_STORE_DIR_GROUP=$(file_group /nix/store)
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if [[ "$(os_name)" =~ NixOS ]]; then
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echo "nixos"
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else
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case "${NIX_STORE_DIR_GROUP}" in
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"nixbld") echo "multi";;
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"30000") echo "multi";;
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"(30000)") echo "multi";;
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"wheel") echo "single";;
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"users") echo "single";;
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"${USER}") echo "single";;
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"${UID}") echo "single";;
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"(${UID})") echo "single";;
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"") echo "none";
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echo "No Nix installtion detected!" >&2;;
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*) echo "Unknown Nix installtion type!" >&2; exit 1;;
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esac
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fi
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}
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nix_root() {
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NIX_ROOT="/nix"
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if [[ $(uname -s) == "Darwin" ]]; then
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# Special case due to read-only root on MacOS Catalina
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NIX_ROOT="/opt/nix"
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fi
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echo "${NIX_ROOT}"
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}
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nix_current_version() {
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nix-env --version | awk '{print $3}'
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}
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nix_get_local_setting() {
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local NIX_LOCAL_CONFIG="${GIT_ROOT}/nix/nix.conf"
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local KEY="${1}"
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awk -F' = ' "/^${KEY} *=/{print \$2}" nix/nix.conf
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}
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nix_set_global_setting() {
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local NIX_GLOBAL_CONFIG="/etc/nix/nix.conf"
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local KEY="${1}"
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local VAL="${2}"
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if grep "${KEY}" "${NIX_GLOBAL_CONFIG}" 2>/dev/null; then
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sed -i "s/${KEY} = \(.*\)$/${KEY} = ${VAL}/" "${NIX_GLOBAL_CONFIG}"
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else
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echo "${KEY} = ${VAL}" | sudo tee -a "${NIX_GLOBAL_CONFIG}" >/dev/null
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fi
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}
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nix_daemon_restart() {
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# Restarting Nix Daemon makes sense only on a multi-user install.
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[[ $(nix_install_type) != "multi" ]] && return
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if [[ "$(uname -s)" == "Darwin" ]]; then
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echo "Restarting Nix daemon Launchd service..." >&2
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sudo launchctl unload /Library/LaunchDaemons/org.nixos.nix-daemon.plist
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sudo launchctl load /Library/LaunchDaemons/org.nixos.nix-daemon.plist
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elif [[ "$(uname -s)" == "Linux" ]] && [[ "$(nix_install_type)" == "multi" ]]; then
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echo "Restarting Nix daemon Systemd service..." >&2
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sudo systemctl daemon-reload
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sudo systemctl restart nix-daemon
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else
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echo "Unknown platform! Unable to restart daemon!" >&2
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exit 1
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fi
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}
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