A cross platform symlink method in Bash

symlink.sh

# Pulled from https://stackoverflow.com/questions/18641864/git-bash-shell-fails-to-create-symbolic-links
# https://stackoverflow.com/users/124119/camilo-martin

# Detect windows (assumes we are in 'msysgit' or similar).
windows() { [[ -n "$WINDIR" ]]; }

# Cross-platform symlink function. 
#  With one parameter, it will check whether the parameter is a symlink. 
#  With two parameters, it will create a symlink to a file or directory,
#   with syntax: link $linkname $target
link() {
    if [[ -z "$2" ]]; then
        # Link-checking mode.
        if windows; then
            fsutil reparsepoint query "$1" > /dev/null
        else
            [[ -h "$1" ]]
        fi
    else
        # Link-creation mode.
        if windows; then
            # Windows needs to be told if it's a directory or not. Infer that.
            # Also: note that we convert `/` to `\`. In this case it's necessary.
            if [[ -d "$2" ]]; then
                cmd <<< "mklink /D \"$1\" \"${2//\//\\}\"" > /dev/null
            else
                cmd <<< "mklink \"$1\" \"${2//\//\\}\"" > /dev/null
            fi
        else
            # You know what? I think ln's parameters are backwards.
            ln -s "$2" "$1"
        fi
    fi
}