Launch commands in new detached tmux sessions.

!launch.md

Tmux launcher

Launch commands in a new detached tmux session. This needs tmux and sqlite3 to be installed, see launch --help for usage.

Sqlite is used for storing the command history in ~/.cache/aziis98.scripts.launch/history.db that can be run with launch past <SESSION_NAME>.

Info

• TARGET_FILE ~> https://gist.github.com/aziis98/5db2a8efb07c1fa666e740f8c0b72b6a

Ideas

• Extend to also store pwd of launched files to intelligently propose command to run "per folder".

launch.sh

#!/bin/bash
# TARGET_FILE=~/.local/bin/launch

STORAGE_DB="$HOME/.cache/aziis98.scripts.launch/history.db"
STORAGE_BUFFER="$HOME/.cache/aziis98.scripts.launch/history_buffer"
mkdir -p "$(dirname "$STORAGE_DB")"

sqlite3 "$STORAGE_DB" <<-EOF
    CREATE TABLE IF NOT EXISTS history(
    	date TEXT,
        session TEXT, 
        command TEXT
    );
	EOF

help() {
    cat <<-EOF
	usage: $(basename "$0") ARGS...

	syntax:

	    <SESSION_NAME> '<COMMAND>'
	        Will $(basename "$0") a background session with the given command.

	    list, ls
	        Prints the list of openned sessions.
	        (or also "$(basename "$0") ls")

	    show <SESSION_NAME>
	        Attaches to the tmux session.

	    history, hist, h
	        Shows previously launched commands.

	    past <SESSION_NAME>
	        Launch a previously launched session from the stored command.

	    --help, -h    
	        Show this help

	EOF
exit 0
}

case "$1" in
    --help|-h)
        help
        ;;
    list|ls)
        if [ "$#" -ne 1 ]; then
            echo -e "Too many parameters, see $(basename "$0") --help for usage"
            exit 1
        fi
        tmux ls
        exit 0
        ;;
    history|hist|h)
        echo -e "Launch Command History:"
        sqlite3 "$STORAGE_DB" <<-EOF
			.mode box
			SELECT date as "Date", session as "Session", command as "Command" FROM history;
			EOF
        exit 0
        ;;
    past)
        if [ "$#" -ne 2 ]; then
            echo -e "Incorrect number of parameters, see $(basename "$0") --help for usage"
            exit 1
        fi
        SESSION_NAME="$2"
        COMMAND="$(sqlite3 "$STORAGE_DB" <<-EOF
			.headers off
			.mode tabs
			SELECT command FROM history WHERE session = "$SESSION_NAME" LIMIT 1;
			EOF
        )"
        tmux new -d -s "$SESSION_NAME" "$COMMAND"
        echo -e "Created tmux session \"$SESSION_NAME\" with (previous) command"
        echo
        echo -e "    $COMMAND"
        echo
        echo -e "reattach with \"$(basename "$0") show $SESSION_NAME\""
        exit 0
        ;;
    show)
        if [ "$#" -ne 2 ]; then
            echo -e "Incorrect number of parameters, see $(basename "$0") --help for usage"
            exit 1
        fi
        tmux attach -t "$2"
        exit 0
        ;;
esac

if [ "$#" -ne 2 ]; then
    echo -e "Too many parameters, see $(basename "$0") --help for usage"
    exit 1
fi

tmux new -d -s "$1" "$2"

printf "$(date +'%Y-%m-%d %H:%M:%S')\t$1\t$2" > "$STORAGE_BUFFER"
sqlite3 "$STORAGE_DB" <<-EOF
	.separator "\t"
	.import $STORAGE_BUFFER history
	EOF

echo -e "Created tmux session \"$1\" with command"
echo
echo -e "    $2"
echo
echo -e "reattach with \"$(basename "$0") show $1\""