77 lines
1.9 KiB
Bash
Executable file
77 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
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#
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# Simpel command line tool to turn predefined wled instances on/off or switch
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# presets.
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#
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# Author: Shy
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# License: CC0
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CURL_FLAGS="--silent --show-error --fail --ipv4 --max-filesize 64K"
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print_usage() {
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echo "Usage: $0 f(nordcenter)|w(ohnzimmer) on|off|1-17|list"
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}
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if test $# -ne 2; then
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print_usage
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exit 0
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fi
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# Parse host argument.
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case "$1" in
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f|fnordcenter)
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wled_host='wled-fnordcenter.local'
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;;
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w|wohnzimmer)
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wled_host='wled-wohnzimmer.local'
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;;
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*)
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echo "Error: unknown host \"$1\"." >&2
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print_usage
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exit 1
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;;
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esac
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# Parse and execute command argument.
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case "$2" in
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on)
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api_resp=$(curl $CURL_FLAGS --json '{"on":true}' "http://$wled_host/json")
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;;
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off)
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api_resp=$(curl $CURL_FLAGS --json '{"on":false}' "http://$wled_host/json")
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;;
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[1-9]|[1-9][0-7])
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api_resp=$(curl $CURL_FLAGS --json "{'on':true,'ps':$2}" "http://$wled_host/json")
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;;
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l|list)
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echo "Presets on $wled_host:"
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curl $CURL_FLAGS "http://$wled_host/presets.json" | \
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# Split into lines - one line per preset. Append final newline.
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sed --sandbox 's/"\(1\?[0-9]\)"/\n"\1"/g; $a\' | \
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# Extract number and name of every preset.
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sed --sandbox -n 's/^"\(1\?[0-9]\)":.*"n":"\([[:print:]]*\)".*$/\1: \2/p'
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exit $?
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;;
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dump)
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curl $CURL_FLAGS -w '\n' "http://$wled_host/json"
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exit 0
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;;
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*)
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echo "Error: unknown command \"$2\"." >&2
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print_usage
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exit 1
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;;
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esac
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curl_exit=$?
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if test $curl_exit -ne 0; then
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echo "Error: curl exited with exit code $curl_exit."
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exit 1
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fi
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# Check API responce. Should be {"success":true}.
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if test "$(echo -n "$api_resp"|tr -c -d '[:alpha:]')" != 'successtrue'; then
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echo "Error: unexpected responce from WLED API." >&2
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exit 1
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fi
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