myshrc.wsl

#!/hint/bash
#
# Extra WSL-specific functionality. To use the full functionality here, a few things need to be
# installed and configured on both the WSL Host and Guest sides.
#
# Host (Windows):
#   * Install VcXsrv and save a vcxsrv.xlaunch file somewhere (default C:\Users\$USER\vcxsrv.xlaunch)
#
# Guest (Linux):
#   * Install wsl2-get-display somewhere in PATH
#   * Install wslview somewhere in PATH (wslu package)
#   * Set environment variables in ~/myshrc_local if needed
#     - WSL_WINDOWS_USER    Windows username                ($USER)
#     - WSL_VCXSRV_PASTH    Windows path to vcxsrv.xlaunch  (C:\Users\$WSL_WINDOWS_USER\vcxsrv.xlaunch)
#   * Source ~/linuxfiles/myshrc.wsl in ~/myshrc_local


if [[ -z "$TMUX" ]] && which wsl2-get-display &>/dev/null; then
    export DISPLAY="$(wsl2-get-display)"
fi

xlaunch() {
    local windows_user="${WSL_WINDOWS_USER:-${USER}}"
    local vcxsrv_path="${WSL_VCXSRV_PATH:-C:\\Users\\${windows_user}\\vcxsrv.xlaunch}"

    if ! which wsl2-get-display &>/dev/null; then
        echo "Error: wsl2-get-display not found"
        return 1
    fi
    local _d="$(wsl2-get-display -t50)"
    if [[ -n "$_d" ]]; then
        export DISPLAY="$_d"
    else
        wslview "$vcxsrv_path"
        sleep 0.5
        export DISPLAY="$(wsl2-get-display -t50 -r100)"
    fi
    if [[ -n "$TMUX" ]]; then
        tmux set-environment DISPLAY "$DISPLAY"
    fi
}