110 lines
3.1 KiB
Bash
110 lines
3.1 KiB
Bash
#!/usr/bin/env bash
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# ps1.sh - Bash PS1 with emoji + optional animation helpers
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# Source this file: source /path/to/ps1.sh
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# Then enable: ps1_on
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# Optional animate: psanimate 0.5
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# Stop animation: psanimate_stop
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# Disable: ps1_off
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# Only for interactive bash
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case "$-" in
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*i*) ;;
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*) return 0 ;;
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esac
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# ---- Emoji pools (edit these) ----
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# Keep them as simple strings; terminals must support the emoji glyphs.
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__PS1_EMOJI_FUN=( "🚀" "✨" "🔥" "🌈" "🧠" "🛠️" "📦" "🧩" "🧪" "⚡" "🐧" "🛰️" )
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# ---- Emoji function (simple random) ----
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_ps1_emoji() {
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local n="${#__PS1_EMOJI_FUN[@]}"
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# RANDOM is bash built-in
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printf '%s' "${__PS1_EMOJI_FUN[RANDOM % n]}"
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}
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# ---- Your PS1 core (edit to taste) ----
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# This is intentionally simple: time, jobs, host, cwd, emoji.
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# Use \\[ \\] around non-printing escape sequences to keep line editing sane.
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_ps1_build() {
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local emoji="$(_ps1_emoji)"
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# Colors: 35 (purple) + 38 (cyan-ish) from your earlier style
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printf '%b' \
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"\[\e[0m\]\[\e[38;5;35m\]╭─(\[\e[38;5;38m\]\t\[\e[38;5;35m\])-(\[\e[38;5;38m\]\j\[\e[38;5;35m\])-(\[\e[38;5;38m\]\H\[\e[38;5;35m\])-(\[\e[38;5;38m\]\w\[\e[38;5;35m\])\n\[\e[38;5;35m\]╰──${emoji} \[\e[0m\]"
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}
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# ---- PROMPT_COMMAND hook (updates PS1 each prompt) ----
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# We add our updater without nuking an existing PROMPT_COMMAND.
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__PS1_PREV_PROMPT_COMMAND=""
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_ps1_set_prompt_command() {
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# Save existing PROMPT_COMMAND once
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if [[ -z "${__PS1_PREV_PROMPT_COMMAND+x}" || -z "$__PS1_PREV_PROMPT_COMMAND" ]]; then
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__PS1_PREV_PROMPT_COMMAND="${PROMPT_COMMAND-}"
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fi
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local updater='_PS1=$(_ps1_build); export PS1="$_PS1"'
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if [[ -z "${PROMPT_COMMAND-}" ]]; then
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PROMPT_COMMAND="$updater"
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else
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# Avoid duplicating if user runs ps1_on multiple times
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case "$PROMPT_COMMAND" in
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*"_ps1_build"*) : ;;
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*)
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PROMPT_COMMAND="$updater; $PROMPT_COMMAND"
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;;
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esac
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fi
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}
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_ps1_restore_prompt_command() {
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PROMPT_COMMAND="${__PS1_PREV_PROMPT_COMMAND-}"
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}
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# ---- Public controls ----
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ps1_on() {
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_ps1_set_prompt_command
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# Force immediate update
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_PS1="$(_ps1_build)"; export PS1="$_PS1"
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}
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ps1_off() {
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psanimate_stop >/dev/null 2>&1 || true
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_ps1_restore_prompt_command
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}
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# ---- Animation helpers (simple loop that forces prompt refresh) ----
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# This follows the same basic idea as in the Medium post: background loop updates prompt periodically. :contentReference[oaicite:2]{index=2}
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__PSANIMATE_PIDFILE="/tmp/psanimatepid-$$"
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psanimate() {
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local interval="${1:-0.5}"
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# Stop existing animator for this shell, if any
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psanimate_stop >/dev/null 2>&1 || true
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# Ensure prompt is enabled
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ps1_on
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(
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while :; do
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# Trigger a prompt rebuild by setting PS1; next prompt draw will use it.
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_PS1="$(_ps1_build)"; export PS1="$_PS1"
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sleep "$interval"
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done
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) &
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echo "$!" > "$__PSANIMATE_PIDFILE"
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}
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psanimate_stop() {
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if [[ -f "$__PSANIMATE_PIDFILE" ]]; then
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local pid
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pid="$(cat "$__PSANIMATE_PIDFILE" 2>/dev/null || true)"
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if [[ -n "${pid:-}" ]]; then
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kill "$pid" 2>/dev/null || true
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fi
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rm -f "$__PSANIMATE_PIDFILE"
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fi
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}
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