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#!/usr/bin/env zsh
## Setup
[[ -o interactive ]] || return # don't load on non-interactive shells
[[ -z "$SSH_CLIENT" && -z "$SSH_TTY" ]] || return # don't load on a SSH connection
zmodload zsh/datetime # faster than `date`
## Zsh Hooks
function bgnotify_begin {
bgnotify_timestamp=$EPOCHSECONDS
bgnotify_lastcmd="${1:-$2}"
}
function bgnotify_end {
{
local exit_status=$?
local elapsed=$(( EPOCHSECONDS - bgnotify_timestamp ))
# check time elapsed
[[ $bgnotify_timestamp -gt 0 ]] || return
[[ $elapsed -ge $bgnotify_threshold ]] || return
# check if Terminal app is not active
[[ $(bgnotify_appid) != "$bgnotify_termid" ]] || return
printf '\a' # beep sound
bgnotify_formatted "$exit_status" "$bgnotify_lastcmd" "$elapsed"
} always {
bgnotify_timestamp=0
}
}
autoload -Uz add-zsh-hook
add-zsh-hook preexec bgnotify_begin
add-zsh-hook precmd bgnotify_end
## Functions
# allow custom function override
(( ${+functions[bgnotify_formatted]} )) || \
function bgnotify_formatted {
local exit_status=$1
local cmd="$2"
# humanly readable elapsed time
local elapsed="$(( $3 % 60 ))s"
(( $3 < 60 )) || elapsed="$((( $3 % 3600) / 60 ))m $elapsed"
(( $3 < 3600 )) || elapsed="$(( $3 / 3600 ))h $elapsed"
if [[ $exit_status -eq 0 ]]; then
bgnotify "#win (took $elapsed)" "$cmd"
else
bgnotify "#fail (took $elapsed)" "$cmd"
fi
}
function bgnotify_appid {
if (( ${+commands[osascript]} )); then
# output is "app ID, window ID" (com.googlecode.iterm2, 116)
osascript -e 'tell application (path to frontmost application as text) to get the {id, id of front window}' 2>/dev/null
elif [[ -n $WAYLAND_DISPLAY ]] && (( ${+commands[swaymsg]} )); then # wayland+sway
local app_id=$(find_sway_appid)
[[ -n "$app_id" ]] && echo "$app_id" || echo $EPOCHSECONDS
elif [[ -z $WAYLAND_DISPLAY ]] && [[ -n $DISPLAY ]] && (( ${+commands[xprop]} )); then
xprop -root _NET_ACTIVE_WINDOW 2>/dev/null | cut -d' ' -f5
else
echo $EPOCHSECONDS
fi
}
function find_sway_appid {
# output is "app_id,container_id", for example "Alacritty,1694"
# see example swaymsg output: https://github.com/ohmyzsh/ohmyzsh/files/13463939/output.json
if (( ${+commands[jq]} )); then
swaymsg -t get_tree | jq '.. | select(.type?) | select(.focused==true) | {app_id, id} | join(",")'
else
swaymsg -t get_tree | awk '
BEGIN { Id = ""; Appid = ""; FocusNesting = -1; Nesting = 0 }
{
# Enter a block
if ($0 ~ /.*{$/) Nesting++
# Exit a block. If Nesting is now less than FocusNesting, we have the data we are looking for
if ($0 ~ /^[[:blank:]]*}.*/) { Nesting--; if (FocusNesting > 0 && Nesting < FocusNesting) exit 0 }
# Save the Id, it is potentially what we are looking for
if ($0 ~ /^[[:blank:]]*"id": [0-9]*,?$/) { sub(/^[[:blank:]]*"id": /, ""); sub(/,$/, ""); Id = $0 }
# Save the Appid, it is potentially what we are looking for
if ($0 ~ /^[[:blank:]]*"app_id": ".*",?$/) { sub(/^[[:blank:]]*"app_id": "/, ""); sub(/",$/, ""); Appid = $0 }
# Window is focused, this nesting block contains the Id and Appid we want!
if ($0 ~ /^[[:blank:]]*"focused": true,?$/) { FocusNesting = Nesting }
}
END {
if (Appid != "" && Id != "" && FocusNesting != -1) print Appid "," Id
else print ""
}'
fi
}
function find_term_id {
local term_id="${bgnotify_termid%%,*}" # remove window id
if [[ -z "$term_id" ]]; then
case "$TERM_PROGRAM" in
iTerm.app) term_id='com.googlecode.iterm2' ;;
Apple_Terminal) term_id='com.apple.terminal' ;;
esac
fi
echo "$term_id"
}
function bgnotify {
local title="$1"
local message="$2"
local icon="$3"
if (( ${+commands[terminal-notifier]} )); then # macOS
local term_id=$(find_term_id)
terminal-notifier -message "$message" -title "$title" ${=icon:+-appIcon "$icon"} ${=term_id:+-activate "$term_id" -sender "$term_id"} &>/dev/null
elif (( ${+commands[growlnotify]} )); then # macOS growl
growlnotify -m "$title" "$message"
elif (( ${+commands[notify-send]} )); then
notify-send "$title" "$message" ${=icon:+--icon "$icon"}
elif (( ${+commands[kdialog]} )); then # KDE
kdialog --title "$title" --passivepopup "$message" 5
elif (( ${+commands[notifu]} )); then # cygwin
notifu /m "$message" /p "$title" ${=icon:+/i "$icon"}
fi
}
## Defaults
# notify if command took longer than 5s by default
bgnotify_threshold=${bgnotify_threshold:-5}
# bgnotify_appid is slow in macOS and the terminal ID won't change, so cache it at startup
bgnotify_termid="$(bgnotify_appid)"
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