Incremental build and shared cache for Apache Maven

[maximilian-novikov-db]

!!! was merged to Apache Maven repo apache#526 !!!

To familiarize yourself with the feature we recommend to start with the provided doc: https://github.com/deutschebank/maven/blob/7d1b8c094f2145909978142a0faa4257a244dc22/Documentation/CACHE.md

An example of nginx config for remote cache:

worker_processes  4;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;

    keepalive_timeout  65;

uht="$upstream_header_time" urt="$upstream_response_time"';

    server {
        listen       10080;
        server_name  localhost;

upstream_time;
        access_log   off;

        location / {
            root  <PATH_TO_CACHE_FOLDER>;
            autoindex on;
            client_max_body_size 1G;
            client_body_temp_path <PATH_TO_TEMP_CACHE_FOLDER>;
            dav_methods PUT DELETE MKCOL COPY MOVE;
            create_full_put_path  on;
            dav_access            group:rw  all:r;
        }
    }
}