Method not available on this version
This method is only available on newer versions.
The first available version (v2_6_3) is shown here.
app_cache_path(custom_path = nil)
public
The full path where the plugin should cache the gem so that it
can be installed latter.
Note: Do not override if you don’t know what you are doing.
# File lib/bundler/plugin/api/source.rb, line 231
def app_cache_path(custom_path = nil)
@app_cache_path ||= Bundler.app_cache(custom_path).join(app_cache_dirname)
end