Function cargo::ops::http_proxy_exists [] [src]

pub fn http_proxy_exists(config: &Config) -> CargoResult<bool>

Determine if an http proxy exists.

Checks the following for existence, in order:

  • cargo's http.proxy
  • git's http.proxy
  • http_proxy env var
  • HTTP_PROXY env var
  • https_proxy env var
  • HTTPS_PROXY env var