Add local.sh script to update local machine

Yes there is nixos-rebuild but this turns out to be for me much more
handy when updating and testing system.

1 files changed, 5 insertions, 120 deletions

diff --git a/devices.sh b/devices.sh
index 25632db..3a2dce5 100755
--- a/devices.sh
+++ b/devices.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -eu
+source "${0%/*}/common.sh"
 declare -a devices
 ################################################################################
 ## aarch64
@@ -24,134 +24,18 @@ valid_device() {
 	return 1
 }
 
-device_system() {
-	nix eval --raw ".#nixosConfigurations.$1.config.nixpkgs.system"
-}
-
-sshdev() {
-	echo "$1" | awk -F- 'NF > 1 { print $2"."$1; exit } { print $1 }'
-}
-
-
-build() {
-	local system="$1"
-	echo "Building $system"
-	local -a args
-	local toplevel=".config.system.build.toplevel"
-	args+=("--keep-going")
-	if [ "$(device_system "$1")" = "armv7l-linux" ]; then
-		toplevel=".config.system.build.cross.x86_64-linux${toplevel}"
-	fi
-	nix build \
-		-o "result-${system}" \
-		"${args[@]}" \
-		"${0%/*}#nixosConfigurations.${system}${toplevel}"
-}
-
-build_validate() {
-	local system="$1"
-	[ -L "result-$system" ] && [ -e "result-$system" ]
-}
-
-copy() {
-	local system="$1"
-	if ! build_validate "$system"; then
-		echo "System '$system' seems to be not build." >&2
-		return 1
-	fi
-	local store="$(readlink -f "result-$system")"
-	local host="$(sshdev "$system")"
-
-	local freespace="$(ssh "$host" -- df -B 1 /nix | awk 'NR == 2 { print $4 }')"
-	local required="$(nix path-info -S "$store" | awk '{ print $2 }')"
-	echo "Free space on device: $(numfmt --to=iec "$freespace")"
-	echo "Required space: $(numfmt --to=iec "$required")"
-	if [ "$required" -ge "$freespace" ]; then
-		echo "There is not enough space to copy clousure to: $system" >&2
-		return 1
-	fi
-
-	echo "Copy closure to: $system"
-	nix copy -s --to "ssh://$host" "$store"
-}
-
-setenv() {
-	local system="$1"
-	if ! build_validate "$system"; then
-		echo "System '$system' seems to be not build." >&2
-		return 1
-	fi
-	local store="$(readlink -f "result-$system")"
-	local host="$(sshdev "$system")"
-
-	echo "Update system: $system"
-	if [ "$(ssh "$host" -- readlink -f /nix/var/nix/profiles/system)" != "$store" ]; then
-		ssh -t "$host" -- \
-			sudo nix-env --profile /nix/var/nix/profiles/system --set "$store"
-	fi
-}
-
-boot() {
-	local system="$1"
-	setenv "$system" || return 1
-
-	local store="$(readlink -f "result-$system")"
-	local host="$(sshdev "$system")"
-
-	echo "Setting boot system: $system"
-	ssh -t "$host" -- \
-		sudo /nix/var/nix/profiles/system/bin/switch-to-configuration boot
-}
-
-is_current() {
-	ssh "$1" -- \
-		'[ "$(readlink -f /run/current-system)" != "$(readlink -f /nix/var/nix/profiles/system)" ]'
-}
-
-switch() {
-	local system="$1"
-	setenv "$system" || return 1
-
-	local store="$(readlink -f "result-$system")"
-	local host="$(sshdev "$system")"
-
-	if is_current "$host"; then
-		echo "Switching: $system"
-		ssh -t "$host" -- \
-			sudo /nix/var/nix/profiles/system/bin/switch-to-configuration switch
-	else
-		echo "This system is already running: $system"
-	fi
-}
-
-switch_test() {
-	local system="$1"
-	setenv "$system" || return 1
-
-	local store="$(readlink -f "result-$system")"
-	local host="$(sshdev "$system")"
-
-	if is_current "$host"; then
-		echo "Testing: $system"
-		ssh -t "$host" -- \
-			sudo /nix/var/nix/profiles/system/bin/switch-to-configuration test
-	else
-		echo "This system is already running: $system"
-	fi
-}
-
 for_devices() {
 	for device in "${selected_devices[@]}"; do
 		for op in "$@"; do
 			if ! "$op" "$device"; then
-				echo "Operation '$op' failed for: $device" >&2
+				error "Operation '$op' failed for: $device" >&2
 				break
 			fi
 		done
 	done
 }
 
-
+################################################################################
 operation="${1:-}"
 [ $# -gt 0 ] && shift
 
@@ -159,7 +43,7 @@ declare -a selected_devices
 if [ $# -gt 0 ]; then
 	for device in "$@"; do
 		if ! valid_device "$device"; then
-			echo "No such device: $device" >&2
+			error "No such device: $device" >&2
 			exit 2
 		fi
 		selected_devices+=("$device")
@@ -168,6 +52,7 @@ else
 	selected_devices=("${devices[@]}")
 fi
 
+
 case "$operation" in
 	help|h)
 		cat <<-EOF