[rfc][icedtea-web] rust launcher made able to find JRE from path

[Jiri Vanek]

On 1/10/19 3:07 PM, Jiri Vanek wrote:
> This patch moving jre detection from main to utils.
> I addition it is adding ability to scan path, and find jre on it, if the build is *not* distribution
> one.
> 
> So in extracted method, the affected is:
> +                    match os.get_registry_jdk() {
> +                        Some(path) => {
> +                            os.log("itw-rust-debug: found and using");
> +                            return path;
> +                        }
> +                        None => {
> +                            os.log("itw-rust-debug: nothing");
> +                            os.log("itw-rust-debug: trying jdk from path");
> +                            match get_jdk_from_path_conditionally(os) {
> +                                Some(path) => {
> +                                    os.log("itw-rust-debug: found and using");
> +                                    return path;
> +                                }
> +                                None => {
> +                                    os.log("itw-rust-debug: nothing");
> +                                    os.log("itw-rust-debug: failing down to hardcoded");
> +                                    return std::path::PathBuf::from(hardcoded_paths::get_jre());
> +                                }
> +                            }
> +                        }
> +                    }
> 
> where new is
>                    match get_jdk_from_path_conditionally(os) {
> +                                Some(path) => {
> +                                    os.log("itw-rust-debug: found and using");
> +                                    return path;
> +                                }
> 
> Sorry for the included re-factoring.
> 
> J.
> 

and added forgotten patch.

-- 
Jiri Vanek
Senior QE engineer, OpenJDK QE lead, Mgr.
Red Hat Czech
jvanek at redhat.com    M: +420775390109
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