Start vscode from WSL with UNC path

code.bash

#/usr/bin/env bash
# Start vscode from WSL with UNC path

# Example of such path:
# [ $(wslpath -w $HOME) = '\\wsl$\Ubuntu\home\'"$USER" ]

function get_pwd_win() {
    local path_pwd_win=`wslpath -w $PWD`
    echo "$path_pwd_win"
}

function get_vscode_path_win() {
    # Handles the problem where there are multiple executables of vscode
    local code_path=`which -a code | tail -n1`
    local code_path_win=`wslpath -w "$code_path"`
    echo "$code_path_win"
}

# Convert input argument via wslpath
function get_input_file_path_win() {
    if [ -n "$1" ]; then
        local input_file_path="$1"
        local input_file_win=`wslpath -w "$input_file_path" 2> /dev/null `
        comment_for_input_file_win
        if [ $? ]; then
            # Is new file
            input_file_win="$(get_pwd_win)\\$input_file_path"
        fi
    else input_file_win=''; fi
    echo "$input_file_win"
}

# Implemented by shell functions
# Supports UNC path by pushd
function code_bash() {
    cmd.exe /c pushd "$(get_pwd_win)" \& "$(get_vscode_path_win)" "$(get_input_file_path_win "$1")" \& popd 2> /dev/null
    # Omits misleading erorr message by 2> /dev/null

    # Original misleading error message example:
    # '\\wsl$\Ubuntu\home\<USER>'
    # CMD.EXE was started with the above path as the current directory.
    # UNC paths are not supported.  Defaulting to Windows directory.
}

function comment_for_input_file_win() {
    # Omits misleading erorr message by 2> /dev/null
    # Original misleading error message example:
    # wslpath: <new_filename>: No such file or directory
    :
}

# Same function without shell functions
function code_bash_alt() {
    if [ -n "$1" ]; then
        input_file_path="$1"
        input_file_win=`wslpath -w "$input_file_path" 2> /dev/null `
        comment_for_input_file_win
        if [ $? ]; then
            # Is new file
            input_file_win="$(get_pwd_win)\\$input_file_path"
        fi
    else input_file_win=''; fi

    # Handles the problem where there are multiple executables of vscode
    local code_path=`which -a code | tail -n1`
    code_path_win=`wslpath -w "$code_path"`

    path_pwd_win=`wslpath -w $PWD`

    cmd.exe /c pushd "$path_pwd_win" \& "$code_path_win" "$input_file_win" \& popd 2> /dev/null
}

code_bash "$1"
#code_bash_alt "$1"