148 lines
4.2 KiB
Bash
148 lines
4.2 KiB
Bash
#!/bin/bash
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# tmux-daemon.sh
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# Idempotent tmux daemon manager with config file support
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# Load config file if it exists
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SCRIPT_DIR=$(dirname "$0")
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SCRIPT_NAME=$(basename "$0" .sh)
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CONFIG_FILE="${SCRIPT_DIR}/${SCRIPT_NAME}.conf"
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if [ -f "$CONFIG_FILE" ]; then
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echo "Loading config from $CONFIG_FILE"
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source "$CONFIG_FILE"
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else
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echo "Config file $CONFIG_FILE not found, generating template..."
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cat > "$CONFIG_FILE" << 'EOF'
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# tmux-daemon.conf
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# Configuration file for tmux-daemon.sh
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# Session name
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SESSION="example"
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# Whether to attach to session after setup (0 or 1)
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ATTACH_SESSION=0
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# Commands to run (array format)
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# Format: "workdir:::command" OR just "command"
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CMDS=(
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"ping google.com"
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"ping google.com"
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"ping google.com"
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"ping google.com"
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"ping google.com"
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"ping google.com"
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"ping google.com"
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)
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EOF
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echo "Generated $CONFIG_FILE with default values. Please edit and run again."
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exit 0
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fi
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# Validate required variables
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if [ -z "$SESSION" ]; then
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echo "Error: SESSION must be set in $CONFIG_FILE" >&2
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exit 1
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fi
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if [ ${#CMDS[@]} -eq 0 ]; then
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echo "Error: CMDS array must be set in $CONFIG_FILE" >&2
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exit 1
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fi
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echo "[main] SESSION: $SESSION"
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echo "[main] Commands: ${CMDS[*]}"
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# Create session if missing
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if ! tmux has-session -t $SESSION 2>/dev/null; then
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echo "[main] Creating tmux session: $SESSION"
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tmux new-session -d -s $SESSION -n win0
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else
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echo "[main] Session $SESSION exists, reusing..."
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fi
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win=0
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pane=0
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for i in "${!CMDS[@]}"; do
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entry="${CMDS[$i]}"
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echo "[loop:$i] entry: $entry"
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if [[ "$entry" == *":::"* ]]; then
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workdir="${entry%%:::*}"
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echo "[loop:$i] workdir set from entry: $workdir"
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cmd="${entry#*:::}"
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echo "[loop:$i] cmd set from entry: $cmd"
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else
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workdir="$PWD"
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echo "[loop:$i] workdir set to PWD: $workdir"
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cmd="$entry"
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echo "[loop:$i] cmd set to entry: $cmd"
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fi
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echo "[loop:$i] Processing command: $cmd (workdir: $workdir)"
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# Determine target window/pane
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win=$((i / 4))
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echo "[loop:$i] win updated: $win"
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pane=$((i % 4))
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echo "[loop:$i] pane updated: $pane"
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# Create window if missing
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if ! tmux list-windows -t $SESSION | grep -q "^$win:"; then
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echo "[loop:$i] Creating window $win"
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tmux new-window -t $SESSION:$win -n win$win
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fi
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# Get current pane count in window
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panes=($(tmux list-panes -t $SESSION:$win -F '#P'))
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echo "[loop:$i] panes in window $win: ${panes[*]}"
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# Create missing pane if needed
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if [ $pane -ge ${#panes[@]} ]; then
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echo "[loop:$i] Splitting pane $((pane-1)) to create pane $pane in window $win"
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if [ $pane -eq 1 ]; then
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tmux split-window -h -t $SESSION:$win
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elif [ $pane -eq 2 ]; then
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tmux split-window -v -t $SESSION:$win
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elif [ $pane -eq 3 ]; then
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tmux split-window -v -t $SESSION:$win.1
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fi
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fi
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# Always apply appropriate layout based on current pane count
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current_panes=($(tmux list-panes -t $SESSION:$win -F '#P'))
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if [ ${#current_panes[@]} -eq 2 ]; then
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tmux select-layout -t $SESSION:$win even-horizontal
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else
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tmux select-layout -t $SESSION:$win tiled
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fi
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# Check if command is already running in the pane
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running=$(tmux list-panes -t $SESSION:$win -F '#{pane_current_command}' | sed -n "$((pane+1))p")
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echo "[loop:$i] running in pane $pane: $running"
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if [[ "$running" == "$(basename "$cmd" | awk '{print $1}')" ]]; then
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echo "[loop:$i] Command already running in pane $pane, skipping..."
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continue
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fi
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# Create temporary script to run command in auto-restart loop
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tmpfile=$(mktemp)
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echo "[loop:$i] tmpfile created: $tmpfile"
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cat >"$tmpfile" <<EOF
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#!/bin/bash
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cd "$workdir" || exit 1
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while true; do
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echo '[tmux-daemon] Starting: $cmd (in $workdir)'
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bash -c '$cmd'
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echo '[tmux-daemon] Command exited with code \$?'
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sleep 2
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done
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EOF
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chmod +x "$tmpfile"
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echo "[loop:$i] Sending command to pane $pane in window $win"
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tmux send-keys -t $SESSION:$win.$pane "$tmpfile" C-m
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done
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echo "[main] Done."
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if [ $ATTACH_SESSION -eq 1 ]; then
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echo "[main] Attaching to tmux session: $SESSION"
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tmux attach -t $SESSION
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fi |