mirror of
https://github.com/nix-community/disko.git
synced 2024-09-11 06:25:33 +03:00
disko-install combines disko and nixos-install into a single command. Example usage: sudo ./disko-install --flake /someflake#eva --disk sda /dev/zvol/zroot/test
170 lines
3.8 KiB
Bash
Executable File
170 lines
3.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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showUsage() {
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cat <<EOF
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Usage: $0 [OPTIONS]
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-f, --flake FLAKE_URI#ATTR Use the specified flake to install the NixOS configuration.
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--dry-run Print the commands that would be run, but do not run them.
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--show-trace Show the stack trace on error.
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-h, --help Show this help message.
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--reference-lock-file FILE Use the specified lock file as a reference for the Nix store.
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EOF
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}
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serialiaseArrayToNix() {
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local -n array=$1
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nixExpr="{ "
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# Iterate over the associative array to populate the Nix attrset string
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for key in "${!array[@]}"; do
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value=${array[$key]}
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nixExpr+="\"${key//\"/\\\"}\" = \"${value//\"/\\\"}\"; "
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done
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nixExpr+="}"
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echo "$nixExpr"
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}
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readonly libexec_dir="${0%/*}"
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nix_args=(
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--extra-experimental-features 'nix-command flakes'
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"--option" "no-write-lock-file" "true"
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)
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dry_run=
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diskoAttr=diskoScript
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declare -A diskMappings
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parseArgs() {
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[[ $# -eq 0 ]] && {
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showUsage
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exit 1
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}
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while [[ $# -gt 0 ]]; do
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case "$1" in
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-d | --debug)
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set -x
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;;
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-f | --flake)
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flake=$2
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shift
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;;
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-h | --help)
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showUsage
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exit 0
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;;
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--dry-run)
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dry_run=y
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;;
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--show-trace)
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nix_args+=("$1")
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;;
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--mode)
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if [[ $# -lt 2 ]]; then
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echo "Option $1 requires an argument" >&2
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exit 1
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fi
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case $2 in
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format)
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diskoAttr=diskoScript
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;;
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mount)
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diskoAttr=mountScript
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;;
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*)
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echo "Invalid mode: $2" >&2
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echo "Valid modes are: format, mount" >&2
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exit 1
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;;
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esac
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mode=$2
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shift
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;;
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--option)
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if [[ $# -lt 3 ]]; then
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echo "Option $1 requires an argument" >&2
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exit 1
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fi
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nix_args+=(--option "$2" "$3")
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shift
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shift
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;;
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--disk)
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if [[ $# -lt 3 ]]; then
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echo "Option $1 requires an argument" >&2
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exit 1
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fi
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# shellcheck disable=SC2034
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diskMappings[$2]=$3
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shift
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shift
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;;
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*)
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echo "Unknown option: $1" >&2
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showUsage
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exit 1
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;;
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esac
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shift
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done
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}
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cleanupMountPoint() {
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mountPoint=$1
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if mountpoint -q "${mountPoint}"; then
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umount -R "${mountPoint}"
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fi
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rmdir "${mountPoint}"
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}
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main() {
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parseArgs "$@"
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if [[ -z ${flake-} ]]; then
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echo "Please specify the flake-uri with --flake to use for installation." >&2
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exit 1
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fi
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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 ${flakeAttr-} ]]; then
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echo "Please specify the name of the NixOS configuration to be installed, as a URI fragment in the flake-uri." >&2
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echo 'For example, to use the output nixosConfigurations.foo from the flake.nix, append "#foo" to the flake-uri.' >&2
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exit 1
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fi
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mountPoint=$(mktemp -d)
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chmod 755 "${mountPoint}" # bchachefs wants 755
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escapeMountPoint=$(printf '%q' "$mountPoint")
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# shellcheck disable=SC2064
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trap "cleanupMountPoint ${escapeMountPoint}" EXIT
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IFS=$'\n' mapfile -t artifacts < <(nix-build "${libexec_dir}"/install-cli.nix \
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"${nix_args[@]}" \
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--no-out-link \
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--impure \
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--argstr flake "$flake" \
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--argstr flakeAttr "$flakeAttr" \
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--argstr rootMountPoint "$mountPoint" \
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--arg diskMappings "$(serialiaseArrayToNix diskMappings)" \
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-A installToplevel \
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-A "$diskoAttr")
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nixos_system=${artifacts[0]}
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disko_script=${artifacts[1]}
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if [[ -n ${dry_run-} ]]; then
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echo "Would run: $disko_script"
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echo "Would run: nixos-install --system '$nixos_system' --root '$mountPoint'"
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exit 0
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fi
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"$disko_script"
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nixos-install --no-root-password --system "$nixos_system" --root "$mountPoint"
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}
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main "$@"
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