55 lines
1.4 KiB
Bash
Executable File
55 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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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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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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