120 lines
4.2 KiB
Bash
120 lines
4.2 KiB
Bash
#!/usr/bin/env bash
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# SPDX-License-Identifier: GPL-3.0-or-later
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# Copyright (c) 2025 LUXIM d.o.o., Slovenia
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# Author: Matjaž Mozetič
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#
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# Name: backtunnel-open-term
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# Summary: Open a command in the user's available terminal emulator, with logging and simple rotation.
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# Description:
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# Detects an installed terminal emulator (preferring Konsole on KDE sessions), opens it,
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# and executes the provided command with arguments. Logs session metadata and output to
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# ${XDG_STATE_HOME:-$HOME/.local/state}/backtunnel/servicemenu.<timestamp>.log, keeping the
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# last 10 logs with a portable rotation routine.
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#
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# Usage:
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# backtunnel-open-term <cmd> [args...]
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#
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# Examples:
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# backtunnel-open-term backtunnel-access-tui "/path/to/dir"
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# backtunnel-open-term bash -lc 'echo Hello'
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#
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# Dependencies:
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# - bash
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# - A terminal emulator (one of: konsole, kitty, alacritty, gnome-terminal, kgx, tilix, xfce4-terminal, xterm)
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# - stat, sort, cut, date (coreutils-compatible)
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#
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# Exit codes:
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# 0 started successfully (or backgrounded if no terminal is available)
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# 1+ invalid usage or failures during setup/execution
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#
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# Notes:
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# - If no terminal emulator is found, the command is started in the background via nohup
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# and the log path is printed.
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# - Uses exec for supported terminals to replace the current process; otherwise prints info then exits.
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set -euo pipefail
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# ... existing code ...
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LOG_DIR="${XDG_STATE_HOME:-$HOME/.local/state}/backtunnel"
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[[ -d "$LOG_DIR" ]] || mkdir -p "$LOG_DIR"
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LOG_FILE="${LOG_DIR}/servicemenu.$(date +%Y%m%d-%H%M%S).log"
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# Simple rotation: keep the last 10 files (portable, avoids SC2207 and xargs -r)
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# Purpose: remove older log files while remaining compatible across GNU/BSD userlands.
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shopt -s nullglob
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logs=( "$LOG_DIR"/servicemenu.*.log )
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if (( ${#logs[@]} > 10 )); then
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pairs=()
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for f in "${logs[@]}"; do
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# Try GNU stat, then BSD stat; fall back to 0 if neither works
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if mtime=$(stat -c %Y -- "$f" 2>/dev/null); then
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:
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elif mtime=$(stat -f %m -- "$f" 2>/dev/null); then
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:
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else
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mtime=0
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fi
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pairs+=( "$mtime"$'\t'"$f" )
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done
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IFS=$'\n' read -r -d '' -a sorted < <(printf '%s\n' "${pairs[@]}" | sort -rn -k1,1 | cut -f2-; printf '\0')
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for (( i=10; i<${#sorted[@]}; i++ )); do
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rm -f -- "${sorted[i]}"
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done
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fi
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shopt -u nullglob
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cmd=( "$@" )
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{
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echo "=== BackTunnel servicemenu ==="
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echo "Time: $(date -Is)"
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echo "PWD: $(pwd)"
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echo "User: $(id -un) (uid=$(id -u))"
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echo "Cmd: ${cmd[*]}"
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echo "Env: BACKTUNNEL_DEBUG=${BACKTUNNEL_DEBUG:-} SHELL=${SHELL:-} DISPLAY=${DISPLAY:-}"
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echo
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# detect_term: choose a terminal emulator to launch the command
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# Output: prints the chosen terminal name or empty string if none found.
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# Prefers Konsole when KDE session is detected.
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detect_term() {
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if [[ -n "${KDE_FULL_SESSION:-}" ]] && command -v konsole >/dev/null 2>&1; then
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echo "konsole"; return
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fi
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for t in kitty alacritty kgx gnome-terminal tilix xfce4-terminal konsole xterm; do
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if command -v "$t" >/dev/null 2>&1; then echo "$t"; return; fi
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done
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echo "" # none
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}
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# ... existing code ...
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term="$(detect_term)"
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echo "Chosen terminal: ${term:-<none>}"; echo
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# Prebuild a shell-escaped command for bash -lc cases (preserves args)
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shell_cmd=""
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if (( ${#cmd[@]} )); then
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printf -v shell_cmd '%q' "${cmd[0]}"
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if (( ${#cmd[@]} > 1 )); then
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for a in "${cmd[@]:1}"; do
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printf -v shell_cmd '%s %q' "$shell_cmd" "$a"
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done
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fi
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fi
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# Run command in terminal (use hold/noclose if supported)
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case "$term" in
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konsole) exec konsole --noclose -e "${cmd[@]}" ;;
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kitty) exec kitty -e "${cmd[@]}" ;;
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alacritty) exec alacritty -e "${cmd[@]}" ;;
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gnome-terminal) exec gnome-terminal -- bash -lc "exec $shell_cmd" ;;
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kgx) exec kgx -- bash -lc "exec $shell_cmd" ;; # GNOME Console
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tilix) exec tilix -e "${cmd[@]}" ;;
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xfce4-terminal) exec xfce4-terminal -e "${cmd[@]}" ;;
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xterm) exec xterm -hold -e "${cmd[@]}" ;;
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*)
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echo "No terminal emulator found. Running in background (nohup)."
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nohup "${cmd[@]}" >/dev/null 2>&1 &
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echo "Started in background (pid=$!)."
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echo "Log: $LOG_FILE"
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exit 0
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;;
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esac
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} | tee -a "$LOG_FILE"
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