Bruno BELANYI
bcdbe45558
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ci/woodpecker/push/check Pipeline was successful
127 lines
2.6 KiB
Bash
Executable file
127 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Whether to disable tmux/screen DCS escape sequences
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: "${OSC777_NO_DCS:=0}"
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die() {
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echo "ERROR: $*"
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exit 1
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}
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usage() {
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if [ $# -gt 0 ]; then
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exec 1>&2
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fi
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cat << EOF
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Usage: $0 [options] <title> <message>
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Send a notification (title and message) to the host system using the OSC 777
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escape sequence:
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Options:
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-h, --help This screen.
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-d, --no-dcs Disable tmux/screen specific DCS sequences, only use OSC 777
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-- Stop options processing
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EOF
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if [ $# -gt 0 ]; then
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echo
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die "$@"
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else
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exit 0
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fi
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}
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tmux_seq() {
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# shellcheck disable=1003
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printf '\033Ptmux;\033%s\033\\' "$1"
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}
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screen_seq() {
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# Screen limits the length of string sequences, so we have to break it up.
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# Going by the screen history:
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# (v4.2.1) Apr 2014 - today: 768 bytes
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# Aug 2008 - Apr 2014 (v4.2.0): 512 bytes
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# ??? - Aug 2008 (v4.0.3): 256 bytes
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local limit=768
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# We go 4 bytes under the limit because we're going to insert two bytes
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# before (\eP) and 2 bytes after (\e\) each string.
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printf '%s' "$1" |
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sed -E "s:.{$((limit - 4))}:&\n:g" |
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sed -E -e 's:^:\x1bP:' -e 's:$:\x1b\\:' |
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tr -d '\n'
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}
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osc777_seq() {
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printf '%s' "$1"
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}
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print_seq() {
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local seq="$1"
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if [ "${OSC777_NO_DCS}" != 0 ]; then
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# Override TERM to avoid tmux/screen DCS escape logic
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TERM=dummy
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fi
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case ${TERM-} in
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screen*)
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# Since tmux defaults to setting TERM=screen, special case it.
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if [ -n "${TMUX-}" ]; then
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tmux_seq "${seq}"
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else
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screen_seq "${seq}"
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fi
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;;
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tmux*)
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tmux_seq "${seq}"
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;;
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*)
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osc777_seq "${seq}"
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;;
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esac
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}
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notify() {
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local title=$1
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local message=$2
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# shellcheck disable=1003
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print_seq "$(printf '\033]777;notify;%s;%s\e\\' "${title}" "${message}")"
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}
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main() {
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set -e
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local args=()
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while [ $# -gt 0 ]; do
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case $1 in
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-h | --help)
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usage
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;;
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-d | --no-dcs)
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OSC777_NO_DCS=1
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;;
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--)
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shift
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args+=("$@")
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break
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;;
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-*)
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usage "Unknown option: $1"
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;;
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*)
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args+=("$1")
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;;
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esac
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shift
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done
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if [ "${#args[@]}" -ne 2 ]; then
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usage "Supply exactly two arguments"
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fi
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notify "${args[@]}"
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}
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main "$@"
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