Andrejus
ffcaf71f82
Add heartbeat.sh that tracks session active time using three native tmux signals: client input (+5), window output (+2), and copy mode (+2), with -1 decay per tick. Score drives a block bar indicator and accumulated active time counter. Resets on tmux server restart. Status bar updates: - Heartbeat pill with pressure bar right of clock - Responsive breakpoints: hide network/battery <120 cols, date <80 - Click clock/date to toggle condensed view - Click heartbeat to instant-lock session - Static colon in clock (replaces shell-based blinker) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
115 lines
3.4 KiB
Bash
Executable File
115 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Heartbeat / liveness indicator for tmux status bar.
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#
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# Pressure-based activity tracking using native tmux signals:
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# Input (keystroke/mouse): +5 per event
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# Output (command output): +2 per tick
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# Copy mode (reading): +2 per tick
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# Decay: -1 per tick
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# Score capped at 100, floored at 0.
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#
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# Counter ticks while score > 0. Resets on tmux restart.
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#
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# Visual (pill with pressure bar):
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# 23m ▆ — teal time + teal bar (active, score > 0)
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# 5m — gray time, no bar (paused, score = 0)
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# 10s ▃ — amber time + amber bar (returning from away)
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SCORE_CAP=100
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state="${TMPDIR:-/tmp}/.tmux_heartbeat"
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read client_act win_act in_mode tmux_pid <<< \
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"$(tmux display-message -p '#{client_activity} #{window_activity} #{pane_in_mode} #{pid}')"
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now=$(date +%s)
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# Load previous state
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prev_client="" prev_win="" score=0 active_total=0 srv_pid=""
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return_at="" return_show=0
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[[ -f "$state" ]] && source "$state"
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# Reset if tmux server restarted
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if [[ "$srv_pid" != "$tmux_pid" ]]; then
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score=0 active_total=0 return_at="" return_show=0
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fi
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# Detect screensaver/lock gaps (script wasn't running for >10s)
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if [[ -f "$state" ]]; then
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last_run=$(stat -f%m "$state" 2>/dev/null || stat -c%Y "$state" 2>/dev/null || echo "$now")
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gap=$(( now - last_run ))
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if (( gap > 10 )); then
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return_at=$now
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return_show=$gap
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score=0
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fi
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fi
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# Score: check activity signals
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gaining=0
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if [[ -n "$prev_client" && "$client_act" != "$prev_client" ]]; then
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(( score += 5 )); gaining=1
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fi
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if [[ -n "$prev_win" && "$win_act" != "$prev_win" ]]; then
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(( score += 2 )); gaining=1
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fi
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if [[ "$in_mode" == "1" ]]; then
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(( score += 2 )); gaining=1
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fi
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(( score-- ))
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(( score > SCORE_CAP )) && score=$SCORE_CAP
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(( score < 0 )) && score=0
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(( score > 0 )) && (( active_total++ ))
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# Clear return flash after 4s
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if [[ -n "$return_at" ]] && (( now - return_at >= 4 )); then
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return_at="" return_show=0
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fi
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# Persist
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printf 'prev_client=%s\nprev_win=%s\nscore=%s\nactive_total=%s\nsrv_pid=%s\nreturn_at=%s\nreturn_show=%s\n' \
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"$client_act" "$win_act" "$score" "$active_total" "$tmux_pid" "$return_at" "$return_show" > "$state"
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# Format seconds to ≤3 chars
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fmt() {
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local s=$1
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if (( s < 60 )); then printf "%ds" "$s"
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elif (( s < 3600 )); then printf "%dm" $(( s / 60 ))
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elif (( s < 86400 )); then printf "%dh" $(( s / 3600 ))
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else printf "%dd" $(( s / 86400 )); fi
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}
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# Pressure bar: block fill (8 levels)
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bar() {
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local s=$1
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if (( s >= 88 )); then printf '█'
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elif (( s >= 75 )); then printf '▇'
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elif (( s >= 63 )); then printf '▆'
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elif (( s >= 50 )); then printf '▅'
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elif (( s >= 38 )); then printf '▄'
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elif (( s >= 25 )); then printf '▃'
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elif (( s >= 13 )); then printf '▂'
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elif (( s >= 1 )); then printf '▁'
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else printf ' '; fi
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}
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# Render: pill with margin (space + bg pill + space)
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render() {
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local bar_fg=$1 b=$2 time_fg=$3 txt=$4 len=${#4}
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local rpad=""
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(( len < 3 )) && printf -v rpad "%$(( 3 - len ))s" ""
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printf " #[bg=#1A1A1A,fg=%s] %s%s #[fg=%s]%s#[default] " "$time_fg" "$txt" "$rpad" "$bar_fg" "$b"
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}
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b=$(bar $score)
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if [[ -n "$return_at" ]]; then
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render "colour208" "$b" "colour208" "$(fmt $return_show)"
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elif (( score > 0 )); then
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render "#2CB494" "$b" "#2CB494" "$(fmt $active_total)"
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else
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render "#808080" " " "#808080" "$(fmt $active_total)"
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fi
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