mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-11 08:13:04 +00:00
804 lines
27 KiB
Bash
Executable File
804 lines
27 KiB
Bash
Executable File
#! @runtimeShell@
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# shellcheck shell=bash
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if [ -x "@runtimeShell@" ]; then export SHELL="@runtimeShell@"; fi;
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set -e
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set -o pipefail
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shopt -s inherit_errexit
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export PATH=@path@:$PATH
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showSyntax() {
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exec man nixos-rebuild
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exit 1
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}
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# Parse the command line.
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origArgs=("$@")
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copyFlags=()
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extraBuildFlags=()
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lockFlags=()
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flakeFlags=(--extra-experimental-features 'nix-command flakes')
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action=
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buildNix=1
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fast=
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rollback=
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upgrade=
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upgrade_all=
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profile=/nix/var/nix/profiles/system
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specialisation=
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buildHost=
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targetHost=
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remoteSudo=
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verboseScript=
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noFlake=
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# comma separated list of vars to preserve when using sudo
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preservedSudoVars=NIXOS_INSTALL_BOOTLOADER
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json=
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# log the given argument to stderr
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log() {
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echo "$@" >&2
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}
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while [ "$#" -gt 0 ]; do
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i="$1"; shift 1
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case "$i" in
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--help)
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showSyntax
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;;
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switch|boot|test|build|edit|repl|dry-build|dry-run|dry-activate|build-vm|build-vm-with-bootloader|list-generations)
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if [ "$i" = dry-run ]; then i=dry-build; fi
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# exactly one action mandatory, bail out if multiple are given
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if [ -n "$action" ]; then showSyntax; fi
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action="$i"
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;;
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--install-grub)
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log "$0: --install-grub deprecated, use --install-bootloader instead"
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export NIXOS_INSTALL_BOOTLOADER=1
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;;
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--install-bootloader)
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export NIXOS_INSTALL_BOOTLOADER=1
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;;
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--no-build-nix)
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buildNix=
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;;
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--rollback)
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rollback=1
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;;
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--upgrade)
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upgrade=1
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;;
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--upgrade-all)
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upgrade=1
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upgrade_all=1
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;;
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--use-substitutes|--substitute-on-destination|-s)
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copyFlags+=("-s")
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;;
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-I|--max-jobs|-j|--cores|--builders|--log-format)
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j="$1"; shift 1
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extraBuildFlags+=("$i" "$j")
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;;
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--accept-flake-config|-j*|--quiet|--print-build-logs|-L|--no-build-output|-Q| --show-trace|--keep-going|-k|--keep-failed|-K|--fallback|--refresh|--repair|--impure|--offline|--no-net)
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extraBuildFlags+=("$i")
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;;
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--verbose|-v|-vv|-vvv|-vvvv|-vvvvv)
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verboseScript="true"
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extraBuildFlags+=("$i")
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;;
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--option)
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j="$1"; shift 1
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k="$1"; shift 1
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extraBuildFlags+=("$i" "$j" "$k")
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;;
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--fast)
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buildNix=
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fast=1
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;;
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--profile-name|-p)
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if [ -z "$1" ]; then
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log "$0: ‘--profile-name’ requires an argument"
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exit 1
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fi
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if [ "$1" != system ]; then
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profile="/nix/var/nix/profiles/system-profiles/$1"
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mkdir -p -m 0755 "$(dirname "$profile")"
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fi
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shift 1
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;;
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--specialisation|-c)
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if [ -z "$1" ]; then
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log "$0: ‘--specialisation’ requires an argument"
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exit 1
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fi
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specialisation="$1"
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shift 1
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;;
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--build-host)
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buildHost="$1"
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shift 1
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;;
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--target-host)
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targetHost="$1"
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shift 1
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;;
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--use-remote-sudo)
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remoteSudo=1
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;;
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--flake)
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flake="$1"
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shift 1
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;;
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--no-flake)
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noFlake=1
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;;
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--recreate-lock-file|--no-update-lock-file|--no-write-lock-file|--no-registries|--commit-lock-file)
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lockFlags+=("$i")
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;;
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--update-input)
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j="$1"; shift 1
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lockFlags+=("$i" "$j")
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;;
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--override-input)
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j="$1"; shift 1
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k="$1"; shift 1
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lockFlags+=("$i" "$j" "$k")
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;;
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--json)
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json=1
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;;
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*)
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log "$0: unknown option \`$i'"
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exit 1
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;;
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esac
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done
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sudoCommand=(sudo --preserve-env="$preservedSudoVars" --)
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if [[ -n "$SUDO_USER" ]]; then
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useSudo=1
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fi
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# log the given argument to stderr if verbose mode is on
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logVerbose() {
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if [ -n "$verboseScript" ]; then
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echo "$@" >&2
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fi
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}
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# Run a command, logging it first if verbose mode is on
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runCmd() {
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logVerbose "$" "$@"
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"$@"
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}
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buildHostCmd() {
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local c
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if [[ "${useSudo:-x}" = 1 ]]; then
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c=("${sudoCommand[@]}")
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else
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c=()
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fi
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if [ -z "$buildHost" ]; then
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runCmd "$@"
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elif [ -n "$remoteNix" ]; then
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runCmd ssh $SSHOPTS "$buildHost" "${c[@]}" env PATH="$remoteNix":'$PATH' "$@"
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else
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runCmd ssh $SSHOPTS "$buildHost" "${c[@]}" "$@"
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fi
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}
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targetHostCmd() {
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local c
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if [[ "${useSudo:-x}" = 1 ]]; then
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c=("${sudoCommand[@]}")
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else
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c=()
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fi
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if [ -z "$targetHost" ]; then
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runCmd "${c[@]}" "$@"
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else
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runCmd ssh $SSHOPTS "$targetHost" "${c[@]}" "$@"
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fi
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}
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targetHostSudoCmd() {
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if [ -n "$remoteSudo" ]; then
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useSudo=1 SSHOPTS="$SSHOPTS -t" targetHostCmd "$@"
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else
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# While a tty might not be necessary, we apply it to be consistent with
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# sudo usage, and an experience that is more consistent with local deployment.
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SSHOPTS="$SSHOPTS -t" targetHostCmd "$@"
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fi
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}
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copyToTarget() {
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if ! [ "$targetHost" = "$buildHost" ]; then
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if [ -z "$targetHost" ]; then
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logVerbose "Running nix-copy-closure with these NIX_SSHOPTS: $SSHOPTS"
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NIX_SSHOPTS=$SSHOPTS runCmd nix-copy-closure "${copyFlags[@]}" --from "$buildHost" "$1"
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elif [ -z "$buildHost" ]; then
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logVerbose "Running nix-copy-closure with these NIX_SSHOPTS: $SSHOPTS"
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NIX_SSHOPTS=$SSHOPTS runCmd nix-copy-closure "${copyFlags[@]}" --to "$targetHost" "$1"
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else
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buildHostCmd nix-copy-closure "${copyFlags[@]}" --to "$targetHost" "$1"
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fi
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fi
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}
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nixBuild() {
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logVerbose "Building in legacy (non-flake) mode."
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if [ -z "$buildHost" ]; then
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logVerbose "No --build-host given, running nix-build locally"
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runCmd nix-build "$@"
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else
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logVerbose "buildHost set to \"$buildHost\", running nix-build remotely"
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local instArgs=()
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local buildArgs=()
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local drv=
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while [ "$#" -gt 0 ]; do
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local i="$1"; shift 1
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case "$i" in
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-o)
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local out="$1"; shift 1
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buildArgs+=("--add-root" "$out" "--indirect")
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;;
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-A)
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local j="$1"; shift 1
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instArgs+=("$i" "$j")
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;;
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-I) # We don't want this in buildArgs
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shift 1
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;;
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--no-out-link) # We don't want this in buildArgs
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;;
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"<"*) # nix paths
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instArgs+=("$i")
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;;
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*)
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buildArgs+=("$i")
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;;
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esac
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done
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drv="$(runCmd nix-instantiate "${instArgs[@]}" "${extraBuildFlags[@]}")"
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if [ -a "$drv" ]; then
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logVerbose "Running nix-copy-closure with these NIX_SSHOPTS: $SSHOPTS"
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NIX_SSHOPTS=$SSHOPTS runCmd nix-copy-closure --to "$buildHost" "$drv"
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buildHostCmd nix-store -r "$drv" "${buildArgs[@]}"
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else
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log "nix-instantiate failed"
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exit 1
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fi
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fi
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}
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nixFlakeBuild() {
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logVerbose "Building in flake mode."
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if [[ -z "$buildHost" && -z "$targetHost" && "$action" != switch && "$action" != boot && "$action" != test && "$action" != dry-activate ]]
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then
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runCmd nix "${flakeFlags[@]}" build "$@"
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readlink -f ./result
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elif [ -z "$buildHost" ]; then
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runCmd nix "${flakeFlags[@]}" build "$@" --out-link "${tmpDir}/result"
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readlink -f "${tmpDir}/result"
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else
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local attr="$1"
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shift 1
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local evalArgs=()
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local buildArgs=()
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local drv=
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while [ "$#" -gt 0 ]; do
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local i="$1"; shift 1
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case "$i" in
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--recreate-lock-file|--no-update-lock-file|--no-write-lock-file|--no-registries|--commit-lock-file)
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evalArgs+=("$i")
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;;
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--update-input)
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local j="$1"; shift 1
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evalArgs+=("$i" "$j")
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;;
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--override-input)
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local j="$1"; shift 1
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local k="$1"; shift 1
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evalArgs+=("$i" "$j" "$k")
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;;
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--impure) # We don't want this in buildArgs, it's only needed at evaluation time, and unsupported during realisation
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;;
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*)
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buildArgs+=("$i")
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;;
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esac
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done
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drv="$(runCmd nix "${flakeFlags[@]}" eval --raw "${attr}.drvPath" "${evalArgs[@]}" "${extraBuildFlags[@]}")"
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if [ -a "$drv" ]; then
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logVerbose "Running nix with these NIX_SSHOPTS: $SSHOPTS"
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NIX_SSHOPTS=$SSHOPTS runCmd nix "${flakeFlags[@]}" copy "${copyFlags[@]}" --derivation --to "ssh://$buildHost" "$drv"
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buildHostCmd nix-store -r "$drv" "${buildArgs[@]}"
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else
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log "nix eval failed"
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exit 1
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fi
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fi
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}
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if [ -z "$action" ]; then showSyntax; fi
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# Only run shell scripts from the Nixpkgs tree if the action is
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# "switch", "boot", or "test". With other actions (such as "build"),
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# the user may reasonably expect that no code from the Nixpkgs tree is
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# executed, so it's safe to run nixos-rebuild against a potentially
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# untrusted tree.
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canRun=
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if [[ "$action" = switch || "$action" = boot || "$action" = test ]]; then
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canRun=1
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fi
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# If ‘--upgrade’ or `--upgrade-all` is given,
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# run ‘nix-channel --update nixos’.
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if [[ -n $upgrade && -z $_NIXOS_REBUILD_REEXEC && -z $flake ]]; then
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# If --upgrade-all is passed, or there are other channels that
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# contain a file called ".update-on-nixos-rebuild", update them as
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# well. Also upgrade the nixos channel.
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for channelpath in /nix/var/nix/profiles/per-user/root/channels/*; do
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channel_name=$(basename "$channelpath")
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if [[ "$channel_name" == "nixos" ]]; then
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runCmd nix-channel --update "$channel_name"
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elif [ -e "$channelpath/.update-on-nixos-rebuild" ]; then
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runCmd nix-channel --update "$channel_name"
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elif [[ -n $upgrade_all ]] ; then
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runCmd nix-channel --update "$channel_name"
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fi
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done
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fi
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# Make sure that we use the Nix package we depend on, not something
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# else from the PATH for nix-{env,instantiate,build}. This is
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# important, because NixOS defaults the architecture of the rebuilt
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# system to the architecture of the nix-* binaries used. So if on an
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# amd64 system the user has an i686 Nix package in her PATH, then we
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# would silently downgrade the whole system to be i686 NixOS on the
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# next reboot.
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if [ -z "$_NIXOS_REBUILD_REEXEC" ]; then
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export PATH=@nix@/bin:$PATH
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fi
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# Use /etc/nixos/flake.nix if it exists. It can be a symlink to the
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# actual flake.
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if [[ -z $flake && -e /etc/nixos/flake.nix && -z $noFlake ]]; then
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flake="$(dirname "$(readlink -f /etc/nixos/flake.nix)")"
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fi
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# For convenience, use the hostname as the default configuration to
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# build from the flake.
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if [[ -n $flake ]]; then
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if [[ $flake =~ ^(.*)\#([^\#\"]*)$ ]]; then
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flake="${BASH_REMATCH[1]}"
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flakeAttr="${BASH_REMATCH[2]}"
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fi
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if [[ -z $flakeAttr ]]; then
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read -r hostname < /proc/sys/kernel/hostname
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if [[ -z $hostname ]]; then
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hostname=default
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fi
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flakeAttr="nixosConfigurations.\"$hostname\""
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else
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flakeAttr="nixosConfigurations.\"$flakeAttr\""
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fi
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fi
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if [[ ! -z "$specialisation" && ! "$action" = switch && ! "$action" = test ]]; then
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log "error: ‘--specialisation’ can only be used with ‘switch’ and ‘test’"
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exit 1
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fi
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tmpDir=$(mktemp -t -d nixos-rebuild.XXXXXX)
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cleanup() {
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for ctrl in "$tmpDir"/ssh-*; do
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ssh -o ControlPath="$ctrl" -O exit dummyhost 2>/dev/null || true
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done
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rm -rf "$tmpDir"
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}
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trap cleanup EXIT
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# Re-execute nixos-rebuild from the Nixpkgs tree.
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if [[ -z $_NIXOS_REBUILD_REEXEC && -n $canRun && -z $fast ]]; then
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if [[ -z $flake ]]; then
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if p=$(runCmd nix-build --no-out-link --expr 'with import <nixpkgs/nixos> {}; config.system.build.nixos-rebuild' "${extraBuildFlags[@]}"); then
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SHOULD_REEXEC=1
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fi
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else
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runCmd nix "${flakeFlags[@]}" build --out-link "${tmpDir}/nixos-rebuild" "$flake#$flakeAttr.config.system.build.nixos-rebuild" "${extraBuildFlags[@]}" "${lockFlags[@]}"
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if p=$(readlink -e "${tmpDir}/nixos-rebuild"); then
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SHOULD_REEXEC=1
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fi
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fi
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if [[ -n $SHOULD_REEXEC ]]; then
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export _NIXOS_REBUILD_REEXEC=1
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# Manually call cleanup as the EXIT trap is not triggered when using exec
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cleanup
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runCmd exec "$p/bin/nixos-rebuild" "${origArgs[@]}"
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exit 1
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fi
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fi
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# Find configuration.nix and open editor instead of building.
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if [ "$action" = edit ]; then
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if [[ -z $flake ]]; then
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NIXOS_CONFIG=${NIXOS_CONFIG:-$(runCmd nix-instantiate --find-file nixos-config)}
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if [[ -d $NIXOS_CONFIG ]]; then
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NIXOS_CONFIG=$NIXOS_CONFIG/default.nix
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fi
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runCmd exec ${EDITOR:-nano} "$NIXOS_CONFIG"
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||
else
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runCmd exec nix "${flakeFlags[@]}" edit "${lockFlags[@]}" -- "$flake#$flakeAttr"
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fi
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exit 1
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fi
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SSHOPTS="$NIX_SSHOPTS -o ControlMaster=auto -o ControlPath=$tmpDir/ssh-%n -o ControlPersist=60"
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|
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# First build Nix, since NixOS may require a newer version than the
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# current one.
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if [[ -n "$rollback" || "$action" = dry-build ]]; then
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buildNix=
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fi
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nixSystem() {
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machine="$(uname -m)"
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if [[ "$machine" =~ i.86 ]]; then
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machine=i686
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fi
|
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echo $machine-linux
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}
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prebuiltNix() {
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machine="$1"
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if [ "$machine" = x86_64 ]; then
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echo @nix_x86_64_linux@
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elif [[ "$machine" =~ i.86 ]]; then
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echo @nix_i686_linux@
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elif [[ "$machine" = aarch64 ]]; then
|
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echo @nix_aarch64_linux@
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else
|
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log "$0: unsupported platform"
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exit 1
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||
fi
|
||
}
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|
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if [[ -n $buildNix && -z $flake ]]; then
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log "building Nix..."
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nixDrv=
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if ! nixDrv="$(runCmd nix-instantiate '<nixpkgs/nixos>' --add-root "$tmpDir/nix.drv" --indirect -A config.nix.package.out "${extraBuildFlags[@]}")"; then
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if ! nixDrv="$(runCmd nix-instantiate '<nixpkgs>' --add-root "$tmpDir/nix.drv" --indirect -A nix "${extraBuildFlags[@]}")"; then
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if ! nixStorePath="$(runCmd nix-instantiate --eval '<nixpkgs/nixos/modules/installer/tools/nix-fallback-paths.nix>' -A "$(nixSystem)" | sed -e 's/^"//' -e 's/"$//')"; then
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nixStorePath="$(prebuiltNix "$(uname -m)")"
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fi
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if ! runCmd nix-store -r "$nixStorePath" --add-root "${tmpDir}/nix" --indirect \
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--option extra-binary-caches https://cache.nixos.org/; then
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log "warning: don't know how to get latest Nix"
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fi
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# Older version of nix-store -r don't support --add-root.
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||
[ -e "$tmpDir/nix" ] || ln -sf "$nixStorePath" "$tmpDir/nix"
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if [ -n "$buildHost" ]; then
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remoteNixStorePath="$(runCmd prebuiltNix "$(buildHostCmd uname -m)")"
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remoteNix="$remoteNixStorePath/bin"
|
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if ! buildHostCmd nix-store -r "$remoteNixStorePath" \
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--option extra-binary-caches https://cache.nixos.org/ >/dev/null; then
|
||
remoteNix=
|
||
log "warning: don't know how to get latest Nix"
|
||
fi
|
||
fi
|
||
fi
|
||
fi
|
||
if [ -a "$nixDrv" ]; then
|
||
nix-store -r "$nixDrv"'!'"out" --add-root "$tmpDir/nix" --indirect >/dev/null
|
||
if [ -n "$buildHost" ]; then
|
||
nix-copy-closure "${copyFlags[@]}" --to "$buildHost" "$nixDrv"
|
||
# The nix build produces multiple outputs, we add them all to the remote path
|
||
for p in $(buildHostCmd nix-store -r "$(readlink "$nixDrv")" "${buildArgs[@]}"); do
|
||
remoteNix="$remoteNix${remoteNix:+:}$p/bin"
|
||
done
|
||
fi
|
||
fi
|
||
PATH="$tmpDir/nix/bin:$PATH"
|
||
fi
|
||
|
||
|
||
# Update the version suffix if we're building from Git (so that
|
||
# nixos-version shows something useful).
|
||
if [[ -n $canRun && -z $flake ]]; then
|
||
if nixpkgs=$(runCmd nix-instantiate --find-file nixpkgs "${extraBuildFlags[@]}"); then
|
||
suffix=$(runCmd $SHELL "$nixpkgs/nixos/modules/installer/tools/get-version-suffix" "${extraBuildFlags[@]}" || true)
|
||
if [ -n "$suffix" ]; then
|
||
echo -n "$suffix" > "$nixpkgs/.version-suffix" || true
|
||
fi
|
||
fi
|
||
fi
|
||
|
||
|
||
if [ "$action" = dry-build ]; then
|
||
extraBuildFlags+=(--dry-run)
|
||
fi
|
||
|
||
if [ "$action" = repl ]; then
|
||
# This is a very end user command, implemented using sub-optimal means.
|
||
# You should feel free to improve its behavior, as well as resolve tech
|
||
# debt in "breaking" ways. Humans adapt quite well.
|
||
if [[ -z $flake ]]; then
|
||
exec nix repl '<nixpkgs/nixos>' "${extraBuildFlags[@]}"
|
||
else
|
||
if [[ -n "${lockFlags[0]}" ]]; then
|
||
# nix repl itself does not support locking flags
|
||
log "nixos-rebuild repl does not support locking flags yet"
|
||
exit 1
|
||
fi
|
||
d='$'
|
||
q='"'
|
||
bold="$(echo -e '\033[1m')"
|
||
blue="$(echo -e '\033[34;1m')"
|
||
attention="$(echo -e '\033[35;1m')"
|
||
reset="$(echo -e '\033[0m')"
|
||
# This nix repl invocation is impure, because usually the flakeref is.
|
||
# For a solution that preserves the motd and custom scope, we need
|
||
# something like https://github.com/NixOS/nix/issues/8679.
|
||
exec nix repl --impure --expr "
|
||
let flake = builtins.getFlake ''$flake'';
|
||
configuration = flake.$flakeAttr;
|
||
motd = ''
|
||
$d{$q\n$q}
|
||
Hello and welcome to the NixOS configuration
|
||
$flakeAttr
|
||
in $flake
|
||
|
||
The following is loaded into nix repl's scope:
|
||
|
||
- ${blue}config${reset} All option values
|
||
- ${blue}options${reset} Option data and metadata
|
||
- ${blue}pkgs${reset} Nixpkgs package set
|
||
- other module arguments
|
||
|
||
- ${blue}flake${reset} Flake outputs, inputs and source info of $flake
|
||
|
||
Use tab completion to browse around ${blue}config${reset}.
|
||
|
||
Use ${bold}:r${reset} to ${bold}reload${reset} everything after making a change in the flake.
|
||
(assuming $flake is a mutable flake ref)
|
||
|
||
See ${bold}:?${reset} for more repl commands.
|
||
|
||
${attention}warning:${reset} nixos-rebuild repl does not currently enforce pure evaluation.
|
||
'';
|
||
scope =
|
||
assert configuration._type or null == ''configuration'';
|
||
assert configuration.class or ''nixos'' == ''nixos'';
|
||
configuration._module.args //
|
||
configuration._module.specialArgs //
|
||
{
|
||
inherit (configuration) config options;
|
||
inherit flake;
|
||
};
|
||
in builtins.seq scope builtins.trace motd scope
|
||
" "${extraBuildFlags[@]}"
|
||
fi
|
||
fi
|
||
|
||
if [ "$action" = list-generations ]; then
|
||
if [ ! -L "$profile" ]; then
|
||
log "No profile \`$(basename "$profile")' found"
|
||
exit 1
|
||
fi
|
||
|
||
generation_from_dir() {
|
||
generation_dir="$1"
|
||
generation_base="$(basename "$generation_dir")" # Has the format "system-123-link" for generation 123
|
||
no_link_gen="${generation_base%-link}" # remove the "-link"
|
||
echo "${no_link_gen##*-}" # remove everything before the last dash
|
||
}
|
||
describe_generation(){
|
||
generation_dir="$1"
|
||
generation_number="$(generation_from_dir "$generation_dir")"
|
||
nixos_version="$(cat "$generation_dir/nixos-version" 2> /dev/null || echo "Unknown")"
|
||
|
||
kernel_dir="$(dirname "$(realpath "$generation_dir/kernel")")"
|
||
kernel_version="$(ls "$kernel_dir/lib/modules" || echo "Unknown")"
|
||
|
||
configurationRevision="$("$generation_dir/sw/bin/nixos-version" --configuration-revision 2> /dev/null || true)"
|
||
|
||
# Old nixos-version output ignored unknown flags and just printed the version
|
||
# therefore the following workaround is done not to show the default output
|
||
nixos_version_default="$("$generation_dir/sw/bin/nixos-version")"
|
||
if [ "$configurationRevision" == "$nixos_version_default" ]; then
|
||
configurationRevision=""
|
||
fi
|
||
|
||
# jq automatically quotes the output => don't try to quote it in output!
|
||
build_date="$(stat "$generation_dir" --format=%W | jq 'todate')"
|
||
|
||
pushd "$generation_dir/specialisation/" > /dev/null || :
|
||
specialisation_list=(*)
|
||
popd > /dev/null || :
|
||
|
||
specialisations="$(jq --compact-output --null-input '$ARGS.positional' --args -- "${specialisation_list[@]}")"
|
||
|
||
if [ "$(basename "$generation_dir")" = "$(readlink "$profile")" ]; then
|
||
current_generation_tag="true"
|
||
else
|
||
current_generation_tag="false"
|
||
fi
|
||
|
||
# Escape userdefined strings
|
||
nixos_version="$(jq -aR <<< "$nixos_version")"
|
||
kernel_version="$(jq -aR <<< "$kernel_version")"
|
||
configurationRevision="$(jq -aR <<< "$configurationRevision")"
|
||
cat << EOF
|
||
{
|
||
"generation": $generation_number,
|
||
"date": $build_date,
|
||
"nixosVersion": $nixos_version,
|
||
"kernelVersion": $kernel_version,
|
||
"configurationRevision": $configurationRevision,
|
||
"specialisations": $specialisations,
|
||
"current": $current_generation_tag
|
||
}
|
||
EOF
|
||
}
|
||
|
||
find "$(dirname "$profile")" -regex "$profile-[0-9]+-link" |
|
||
sort -Vr |
|
||
while read -r generation_dir; do
|
||
describe_generation "$generation_dir"
|
||
done |
|
||
if [ -z "$json" ]; then
|
||
jq --slurp -r '.[] | [
|
||
([.generation, (if .current == true then "current" else "" end)] | join(" ")),
|
||
(.date | fromdate | strflocaltime("%Y-%m-%d %H:%M:%S")),
|
||
.nixosVersion, .kernelVersion, .configurationRevision,
|
||
(.specialisations | join(" "))
|
||
] | @tsv' |
|
||
column --separator $'\t' --table --table-columns "Generation,Build-date,NixOS version,Kernel,Configuration Revision,Specialisation" |
|
||
${PAGER:cat}
|
||
else
|
||
jq --slurp .
|
||
fi
|
||
exit 0
|
||
fi
|
||
|
||
|
||
# Either upgrade the configuration in the system profile (for "switch"
|
||
# or "boot"), or just build it and create a symlink "result" in the
|
||
# current directory (for "build" and "test").
|
||
if [ -z "$rollback" ]; then
|
||
log "building the system configuration..."
|
||
if [[ "$action" = switch || "$action" = boot ]]; then
|
||
if [[ -z $flake ]]; then
|
||
pathToConfig="$(nixBuild '<nixpkgs/nixos>' --no-out-link -A system "${extraBuildFlags[@]}")"
|
||
else
|
||
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.toplevel" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
|
||
fi
|
||
copyToTarget "$pathToConfig"
|
||
targetHostSudoCmd nix-env -p "$profile" --set "$pathToConfig"
|
||
elif [[ "$action" = test || "$action" = build || "$action" = dry-build || "$action" = dry-activate ]]; then
|
||
if [[ -z $flake ]]; then
|
||
pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A system -k "${extraBuildFlags[@]}")"
|
||
else
|
||
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.toplevel" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
|
||
fi
|
||
elif [ "$action" = build-vm ]; then
|
||
if [[ -z $flake ]]; then
|
||
pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A vm -k "${extraBuildFlags[@]}")"
|
||
else
|
||
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.vm" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
|
||
fi
|
||
elif [ "$action" = build-vm-with-bootloader ]; then
|
||
if [[ -z $flake ]]; then
|
||
pathToConfig="$(nixBuild '<nixpkgs/nixos>' -A vmWithBootLoader -k "${extraBuildFlags[@]}")"
|
||
else
|
||
pathToConfig="$(nixFlakeBuild "$flake#$flakeAttr.config.system.build.vmWithBootLoader" "${extraBuildFlags[@]}" "${lockFlags[@]}")"
|
||
fi
|
||
else
|
||
showSyntax
|
||
fi
|
||
# Copy build to target host if we haven't already done it
|
||
if ! [[ "$action" = switch || "$action" = boot ]]; then
|
||
copyToTarget "$pathToConfig"
|
||
fi
|
||
else # [ -n "$rollback" ]
|
||
if [[ "$action" = switch || "$action" = boot ]]; then
|
||
targetHostSudoCmd nix-env --rollback -p "$profile"
|
||
pathToConfig="$profile"
|
||
elif [[ "$action" = test || "$action" = build ]]; then
|
||
systemNumber=$(
|
||
targetHostCmd nix-env -p "$profile" --list-generations |
|
||
sed -n '/current/ {g; p;}; s/ *\([0-9]*\).*/\1/; h'
|
||
)
|
||
pathToConfig="$profile"-${systemNumber}-link
|
||
if [ -z "$targetHost" ]; then
|
||
ln -sT "$pathToConfig" ./result
|
||
fi
|
||
else
|
||
showSyntax
|
||
fi
|
||
fi
|
||
|
||
|
||
# If we're not just building, then make the new configuration the boot
|
||
# default and/or activate it now.
|
||
if [[ "$action" = switch || "$action" = boot || "$action" = test || "$action" = dry-activate ]]; then
|
||
# Using systemd-run here to protect against PTY failures/network
|
||
# disconnections during rebuild.
|
||
# See: https://github.com/NixOS/nixpkgs/issues/39118
|
||
cmd=(
|
||
"systemd-run"
|
||
"-E" "LOCALE_ARCHIVE" # Will be set to new value early in switch-to-configuration script, but interpreter starts out with old value
|
||
"-E" "NIXOS_INSTALL_BOOTLOADER"
|
||
"--collect"
|
||
"--no-ask-password"
|
||
"--pty"
|
||
"--quiet"
|
||
"--same-dir"
|
||
"--service-type=exec"
|
||
"--unit=nixos-rebuild-switch-to-configuration"
|
||
"--wait"
|
||
)
|
||
# Check if we have a working systemd-run. In chroot environments we may have
|
||
# a non-working systemd, so we fallback to not using systemd-run.
|
||
# You may also want to explicitly set NIXOS_SWITCH_USE_DIRTY_ENV environment
|
||
# variable, since systemd-run runs inside an isolated environment and
|
||
# this may break some post-switch scripts. However keep in mind that this
|
||
# may be dangerous in remote access (e.g. SSH).
|
||
if [[ -n "$NIXOS_SWITCH_USE_DIRTY_ENV" ]]; then
|
||
log "warning: skipping systemd-run since NIXOS_SWITCH_USE_DIRTY_ENV is set. This environment variable will be ignored in the future"
|
||
cmd=()
|
||
elif ! targetHostSudoCmd "${cmd[@]}" true; then
|
||
logVerbose "Skipping systemd-run to switch configuration since it is not working in target host."
|
||
cmd=(
|
||
"env"
|
||
"-i"
|
||
"LOCALE_ARCHIVE=$LOCALE_ARCHIVE"
|
||
"NIXOS_INSTALL_BOOTLOADER=$NIXOS_INSTALL_BOOTLOADER"
|
||
)
|
||
else
|
||
logVerbose "Using systemd-run to switch configuration."
|
||
fi
|
||
if [[ -z "$specialisation" ]]; then
|
||
cmd+=("$pathToConfig/bin/switch-to-configuration")
|
||
else
|
||
cmd+=("$pathToConfig/specialisation/$specialisation/bin/switch-to-configuration")
|
||
|
||
if [[ ! -f "${cmd[-1]}" ]]; then
|
||
log "error: specialisation not found: $specialisation"
|
||
exit 1
|
||
fi
|
||
fi
|
||
|
||
if ! targetHostSudoCmd "${cmd[@]}" "$action"; then
|
||
log "warning: error(s) occurred while switching to the new configuration"
|
||
exit 1
|
||
fi
|
||
fi
|
||
|
||
|
||
if [[ "$action" = build-vm || "$action" = build-vm-with-bootloader ]]; then
|
||
cat >&2 <<EOF
|
||
|
||
Done. The virtual machine can be started by running $(echo "${pathToConfig}/bin/"run-*-vm)
|
||
EOF
|
||
fi
|