Andrejus
b438a9d776
Heartbeat now emits only a tmux fg color that interpolates teal to gray based on activity score. Status-right supplies the time display directly. Removes bar/pill/time rendering. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
85 lines
2.4 KiB
Bash
Executable File
85 lines
2.4 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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# Outputs a tmux fg color that fades from teal to gray with activity.
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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=$gap
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score=0
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fi
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fi
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# Score: check activity signals
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if [[ -n "$prev_client" && "$client_act" != "$prev_client" ]]; then
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(( score += 5 ))
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fi
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if [[ -n "$prev_win" && "$win_act" != "$prev_win" ]]; then
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(( score += 2 ))
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fi
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if [[ "$in_mode" == "1" ]]; then
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(( score += 2 ))
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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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# Output: tmux color code that fades teal (#2CB494) → gray (#808080)
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# Interpolate RGB channels based on score (0-100)
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lerp() {
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local from=$1 to=$2 pct=$3
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echo $(( from + (to - from) * pct / 100 ))
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}
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if [[ -n "$return_at" ]]; then
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printf '#[fg=colour208]'
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else
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r=$(lerp 128 44 "$score")
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g=$(lerp 128 180 "$score")
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b=$(lerp 128 148 "$score")
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printf '#[fg=#%02X%02X%02X]' "$r" "$g" "$b"
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fi
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