89 lines
3 KiB
Text
89 lines
3 KiB
Text
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#!/bin/sh
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# power-cycle <host> — off, wait POWER_CYCLE_OFF_SECS (default 5), on
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# power-cycle off|on|status <host> — explicit single action
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# power-cycle list — show configured host -> plug mappings
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#
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# Targets Shelly Gen2 plugs (Plus Plug US/S, etc.) via their local HTTP RPC.
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# No cloud, no account. The host must be reachable on the same network/VPN.
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#
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# Config: ~/.config/power-cycle/plugs.conf
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# one entry per line: <host> <plug-base-url>
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# blank lines and lines starting with # are ignored.
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# Example:
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# apricot http://10.0.0.117
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# plum http://10.0.0.119
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#
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# Env:
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# POWER_CYCLE_OFF_SECS seconds to stay off during a cycle (default 5)
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# POWER_CYCLE_TIMEOUT per-request curl timeout in seconds (default 5)
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set -eu
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config="${XDG_CONFIG_HOME:-$HOME/.config}/power-cycle/plugs.conf"
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off_secs=${POWER_CYCLE_OFF_SECS:-5}
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http_timeout=${POWER_CYCLE_TIMEOUT:-5}
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die() { echo "power-cycle: $*" >&2; exit 1; }
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usage() {
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sed -n '2,/^$/p' "$0" | sed 's/^# \{0,1\}//'
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exit 2
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}
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lookup_plug() {
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# echoes the plug base URL for $1, or exits non-zero with a hint.
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host=$1
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[ -f "$config" ] || die "no config at $config — create it (see 'power-cycle' help)"
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url=$(awk -v h="$host" '
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/^[[:space:]]*(#|$)/ { next }
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$1 == h { print $2; found=1; exit }
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END { exit !found }
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' "$config") || die "no plug configured for '$host' in $config"
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[ -n "$url" ] || die "empty plug URL for '$host' in $config"
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printf %s "$url"
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}
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shelly_set() {
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# shelly_set <base-url> <true|false>
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base=$1; state=$2
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curl --fail --silent --show-error --max-time "$http_timeout" \
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"$base/rpc/Switch.Set?id=0&on=$state" >/dev/null \
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|| die "plug $base unreachable — for modem outages, fall back to BLE (SwitchBot app)"
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}
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shelly_status() {
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# echoes "on" or "off"
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base=$1
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body=$(curl --fail --silent --show-error --max-time "$http_timeout" \
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"$base/rpc/Switch.GetStatus?id=0") \
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|| die "plug $base unreachable"
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case "$body" in
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*'"output":true'*) echo on ;;
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*'"output":false'*) echo off ;;
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*) die "unrecognized Shelly response: $body" ;;
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esac
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}
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cmd_list() {
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[ -f "$config" ] || die "no config at $config"
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awk '/^[[:space:]]*(#|$)/ { next } { printf " %-15s %s\n", $1, $2 }' "$config"
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}
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case "${1:-}" in
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''|-h|--help|help) usage ;;
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list) cmd_list ;;
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off) [ $# -eq 2 ] || usage; shelly_set "$(lookup_plug "$2")" false ;;
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on) [ $# -eq 2 ] || usage; shelly_set "$(lookup_plug "$2")" true ;;
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status) [ $# -eq 2 ] || usage; shelly_status "$(lookup_plug "$2")" ;;
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*)
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[ $# -eq 1 ] || usage
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host=$1
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base=$(lookup_plug "$host")
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echo "cycling $host: off -> ${off_secs}s -> on"
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shelly_set "$base" false
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sleep "$off_secs"
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shelly_set "$base" true
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echo "done. give the host ~30-90s to finish booting."
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;;
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esac
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