109 lines
3.6 KiB
Bash
Executable File
109 lines
3.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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#===============================================================================
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#
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# CREATED : 2026-02-21
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# UPDATED :
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# USAGE :
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# DESC : Hack tmux session launcher. Reads a YAML file to create a tmux # session with multiple windows and commands.
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# NOTES :
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# AUTHOR : chawley
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#
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#===============================================================================
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# Path to the YAML configuration file
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TMUX_CONFIG_FILE="${HOME}/.config/tmux-menu/tmux-sessions.yaml"
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# Check for yq (YAML processor)
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if ! command -v yq &> /dev/null; then
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echo "Error: 'yq' command not found."
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echo "Please install yq (https://github.com/mikefarah/yq) to use this script."
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echo "Example: 'sudo snap install yq' or 'brew install yq'"
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exit 1
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fi
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# check for command line argument
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# Tips from:
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# http://stackoverflow.com/questions/7832080/test-if-a-variable-is-set-in-bash-when-using-set-o-nounset
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if [ -z "${1:-}" ]; then
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session="undefined"
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else
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session=$1
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fi
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echo ""
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echo ""
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echo "##################################"
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echo "TMUX Hack Session Launcher"
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echo "##################################"
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echo "Launching Session: $session"
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# NO TMUX NESTING ALLOWED
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if [ ! -z $TMUX ]; then
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echo "You are in a session already. NO NESTING ALLOWED"
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echo "-------------------------------------------------"
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exit 1
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fi
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# if session is active, switch to it.
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if tmux has-session -t "${session}" 2>/dev/null; then
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echo "Session '${session}' already active. Attaching..."
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tmux attach-session -t "${session}"
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exit 0
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fi
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# Check if the config file exists
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if [ ! -f "${TMUX_CONFIG_FILE}" ]; then
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echo "Error: tmux session configuration file not found at '${TMUX_CONFIG_FILE}'."
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echo "Please create it with your session definitions."
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exit 1
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fi
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# Check if the requested session exists in the YAML file
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if ! yq e ".sessions.${session}" "${TMUX_CONFIG_FILE}" &> /dev/null; then
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echo "### ERROR No Such Session ###"
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echo "Usage: $(basename "$0") <session_name>"
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echo "Available Sessions from '${TMUX_CONFIG_FILE}':"
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echo "---------------------------------------"
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yq e '.sessions | keys | .[]' "${TMUX_CONFIG_FILE}" 2>/dev/null || echo "No sessions defined."
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echo ""
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echo "Active tmux Sessions:"
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echo "---------------------"
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tmux list-sessions 2>/dev/null || echo "No active sessions."
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exit 1
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fi
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echo "Creating new session '${session}' from '${TMUX_CONFIG_FILE}'..."
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# Get the number of windows for the session
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num_windows=$(yq e ".sessions.${session}.windows | length" "${TMUX_CONFIG_FILE}")
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if [[ "${num_windows}" -eq 0 ]]; then
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echo "Error: Session '${session}' has no windows defined in '${TMUX_CONFIG_FILE}'."
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exit 1
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fi
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# Create the first window (which also creates the session)
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first_window_name=$(yq e ".sessions.${session}.windows[0].name" "${TMUX_CONFIG_FILE}")
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first_window_command=$(yq e ".sessions.${session}.windows[0].command // \"\"" "${TMUX_CONFIG_FILE}")
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if [[ -z "${first_window_command}" ]]; then
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tmux new-session -d -s "${session}" -n "${first_window_name}"
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else
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tmux new-session -d -s "${session}" -n "${first_window_name}" "${first_window_command}"
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fi
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# Create subsequent windows
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for ((i=1; i<num_windows; i++)); do
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window_name=$(yq e ".sessions.${session}.windows[${i}].name" "${TMUX_CONFIG_FILE}")
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window_command=$(yq e ".sessions.${session}.windows[${i}].command // \"\"" "${TMUX_CONFIG_FILE}")
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if [[ -z "${window_command}" ]]; then
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tmux new-window -t "${session}:${i}" -n "${window_name}"
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else
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tmux new-window -t "${session}:${i}" -n "${window_name}" "${window_command}"
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fi
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done
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# Attach to the newly created session
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tmux attach-session -t "${session}"
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