89 lines
3.0 KiB
Bash
89 lines
3.0 KiB
Bash
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#!/usr/bin/env bash
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# This script installs a specific version of Nix.
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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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source "${GIT_ROOT}/scripts/colors.sh"
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source "${GIT_ROOT}/nix/scripts/lib.sh"
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source "${GIT_ROOT}/nix/scripts/version.sh"
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nix_install() {
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# Download installer and verify SHA256>
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curl -sSf "${NIX_INSTALL_URL}" -o "${NIX_INSTALL_PATH}"
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echo "${NIX_INSTALL_SHA256} ${NIX_INSTALL_PATH}" | sha256sum -c
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chmod +x "${NIX_INSTALL_PATH}"
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# Identify installation type.
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if [[ -z "${NIX_INSTALL_OPTS}" ]]; then
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if [[ "$(uname -r)" =~ microsoft ]]; then
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# Systemd is not started by default on WSL.
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NIX_INSTALL_OPTS="--no-daemon"
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elif [[ "$(uname -s)" == "Darwin" ]]; then
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# Single-user not supported on Darwin.
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NIX_INSTALL_OPTS="--daemon"
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elif [[ "$(uname -s)" == "Linux" ]]; then
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# Open file limit issues on Linux.
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# https://github.com/NixOS/nix/issues/6007
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# Alson known issues with nix-daemon.socket on Arch.
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NIX_INSTALL_OPTS="--no-daemon"
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fi
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fi
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# Run the installer
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"${NIX_INSTALL_PATH}" "${NIX_INSTALL_OPTS}"
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if [[ $? -eq 0 ]]; then
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echo -e "${GRN}The Nix package manager was successfully installed.${RST}"
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else
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echo -e "${RED}Failed to install Nix package manager!${RST}" >&2
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echo "Please see: https://nixos.org/nix/manual/#chap-installation" >&2
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exit 1
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fi
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# Additional fixes
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nix_add_extra_cache
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nix_daemon_restart
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}
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# Adding directly to global config to avoid warnings like this:
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# "ignoring untrusted substituter 'https://nix-cache.status.im/', you are not a trusted user."
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nix_add_extra_cache() {
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# Single-user installations do not have this issue.
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[[ ! -f /etc/nix/nix.conf ]] && return
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echo -e 'Adding our cache to Nix daemon config...' >&2
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local NIX_SETTINGS=('substituters' 'trusted-substituters' 'trusted-public-keys')
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for NIX_SETTING in "${NIX_SETTINGS[@]}"; do
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nix_set_global_setting "${NIX_SETTING}" "$(nix_get_local_setting "${NIX_SETTING}")"
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done
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}
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if [[ ! -x "$(command -v sha256sum)" ]]; then
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echo -e "${RED}The 'sha256sum' utility is required for Nix installation.${RST}" >&2
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echo -e "${YLW}Install 'coreutils' package on your system.${RST}" >&2
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exit 1
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fi
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if [[ ! -x "$(command -v curl)" ]]; then
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echo -e "${RED}The 'curl' utility is required for Nix installation.${RST}" >&2
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exit 1
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fi
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if [[ "$(source /etc/os-release 2>/dev/null && echo "${NAME}")" == *NixOS* ]]; then
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echo -e "${GRN}Already running NixOS.${RST}"
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exit
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fi
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if [[ -x "$(command -v nix)" ]]; then
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echo -e "${GRN}Nix package manager already installed.${RST}"
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exit
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fi
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if [[ "${IN_NIX_SHELL}" == 'pure' ]]; then
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echo -e "${GRN}Already in a pure Nix shell.${RST}"
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exit
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fi
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# If none of the checks before succeeded we need to install Nix
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echo -e "${GRN}Setting up Nix package manager...${RST}"
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nix_install
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echo -e "${YLW}See STARTING_GUIDE.md if you're new here.${RST}"
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