sysadminmatmoz
ae8ab9a7e0
Introduce `backtunnel-umount` as a portable unmount helper, preferring `fusermount3`, `fusermount`, or `umount`. Add `BACKTUNNEL_HOSTKEY_POLICY` for configurable host key handling in `backtunnel-share` and `backtunnel-access`. Update TUIs for remote folder prompts and mount point handling. Enhance bash completion for TUI commands with directory suggestions. Revamp terminal selection logic in `backtunnel-open-term` to prioritize modern emulators like wezterm. Extend tests with scaffolds for host key policy and unmount behavior. Update README with new scripts, workflows, features, and troubleshooting tips.
122 lines
4.4 KiB
Bash
122 lines
4.4 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 "${KDE_FULL_SESSION:-}" ]] && command -v konsole >/dev/null 2>&1; then
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echo "konsole"; return
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fi
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# Prefer widely used modern terminals first when not on KDE
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for t in wezterm kitty alacritty kgx gnome-terminal tilix xfce4-terminal konsole xterm; do
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if command -v "$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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wezterm) exec wezterm start -- "${cmd[@]}" ;;
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kitty) exec kitty -e "${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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