status-mobile/nix/scripts/setup.sh

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#!/usr/bin/env bash
# This script installs a specific version of Nix.
set -eo pipefail
GIT_ROOT=$(cd "${BASH_SOURCE%/*}" && git rev-parse --show-toplevel)
source "${GIT_ROOT}/nix/scripts/lib.sh"
source "${GIT_ROOT}/scripts/colors.sh"
NIX_VERSION="2.6.1"
NIX_INSTALL_URL="https://nixos.org/releases/nix/nix-${NIX_VERSION}/install"
NIX_INSTALL_SHA256="a63732b4f3628ce97e096dbda88e3cb9851ff6b4f94b5cd43feb257126437b9d"
NIX_INSTALL_PATH="/tmp/nix-install-${NIX_VERSION}"
install_nix() {
# Download installer and verify SHA256>
curl -sSf "${NIX_INSTALL_URL}" -o "${NIX_INSTALL_PATH}"
echo "${NIX_INSTALL_SHA256} ${NIX_INSTALL_PATH}" | sha256sum -c
chmod +x "${NIX_INSTALL_PATH}"
# Identify installation type.
if [[ -z "${NIX_INSTALL_OPTS}" ]]; then
if [[ "$(uname -r)" =~ microsoft ]]; then
# Systemd is not started by default on WSL.
NIX_INSTALL_OPTS="--no-daemon"
elif [[ "$(uname -s)" == "Darwin" ]]; then
# Single-user not supported on Darwin.
NIX_INSTALL_OPTS="--daemon"
elif [[ "$(uname -s)" == "Linux" ]]; then
# Open file limit issues on Linux.
# https://github.com/NixOS/nix/issues/6007
# Alson known issues with nix-daemon.socket on Arch.
NIX_INSTALL_OPTS="--no-daemon"
fi
fi
# Run the installer
"${NIX_INSTALL_PATH}" "${NIX_INSTALL_OPTS}"
if [[ $? -eq 0 ]]; then
echo -e "${GRN}The Nix package manager was successfully installed.${RST}"
else
echo -e "${RED}Failed to install Nix package manager!${RST}" >&2
echo "Please see: https://nixos.org/nix/manual/#chap-installation" >&2
exit 1
fi
}
if [[ ! -x "$(command -v sha256sum)" ]]; then
echo -e "${RED}The 'sha256sum' utility is required for Nix installation.${RST}" >&2
echo -e "${YLW}Install 'coreutils' package on your system.${RST}" >&2
exit 1
fi
if [[ ! -x "$(command -v curl)" ]]; then
echo -e "${RED}The 'curl' utility is required for Nix installation.${RST}" >&2
exit 1
fi
if [[ "$(source /etc/os-release 2>/dev/null && echo "${NAME}")" == *NixOS* ]]; then
echo -e "${GRN}Already running NixOS.${RST}"
exit
fi
if [[ -x "$(command -v nix)" ]]; then
echo -e "${GRN}Nix package manager already installed.${RST}"
exit
fi
if [[ "${IN_NIX_SHELL}" == 'pure' ]]; then
echo -e "${GRN}Already in a pure Nix shell.${RST}"
exit
fi
# If none of the checks before succeeded we need to install Nix
echo -e "${GRN}Setting up Nix package manager...${RST}"
install_nix
echo -e "${YLW}See STARTING_GUIDE.md if you're new here.${RST}"