Remove network downloading feature

README.md

@@ -13,7 +13,7 @@ Just follow the instructions in the provided readme in the
 [release](https://github.com/featurecat/lizzie/releases/tag/0.5).
 
 The first run may take a while because Leela Zero needs to set up the
-OpenCL tunings and download the latest network if it is not present. Just hang tight, and wait for it to finish, then you
+OpenCL tunings. Just hang tight, and wait for it to finish, then you
 will see Leela Zero's analysis displayed on the board. Feel free to supply
 your own tunings, as this will speed up the process. Do this by copying
 any `leelaz_opencl_tuning` file you have into the directory.
@@ -24,14 +24,15 @@ any `leelaz_opencl_tuning` file you have into the directory.
 
 First, you will need to have a version of Leela Zero that
 continually outputs pondering information. You can get this from one
-of the Lizzie releases or build it yourself; just compile from the **next** branch of Leela Zero (see http://github.com/gcp/leela-zero/tree/next for more details).
+of the Lizzie releases or build it yourself; just compile from the **next**
+branch of Leela Zero (see http://github.com/gcp/leela-zero/tree/next for more
+details).
 
-    git clone -b next http://github.com/gcp/leela-zero.git
+    $ git clone --recursive --branch next http://github.com/gcp/leela-zero.git
 
 ### Building Lizzie
 
-The simplest way to build Lizzie is to use
-[Maven](https://maven.apache.org/).
+The simplest way to build Lizzie is to use [Maven](https://maven.apache.org/).
 
 To build the code and package it:
 

src/main/java/featurecat/lizzie/Config.java

@@ -249,7 +249,6 @@ private JSONObject createDefaultConfig() {
     leelaz.put("max-game-thinking-time-seconds", 2);
     leelaz.put("print-comms", false);
     leelaz.put("analyze-update-interval-centisec", 10);
-    leelaz.put("automatically-download-latest-network", false);
 
     config.put("leelaz", leelaz);
 

src/main/java/featurecat/lizzie/analysis/Leelaz.java

@@ -1,13 +1,11 @@
 package featurecat.lizzie.analysis;
 
 import featurecat.lizzie.Lizzie;
-import featurecat.lizzie.Util;
 import featurecat.lizzie.rules.Stone;
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
 import java.io.File;
 import java.io.IOException;
-import java.net.URL;
 import java.util.*;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.Executors;
@@ -29,7 +27,6 @@ public class Leelaz {
       ResourceBundle.getBundle("l10n.DisplayStrings");
 
   private static final long MINUTE = 60 * 1000; // number of milliseconds in a minute
-  private static final String baseURL = "http://zero.sjeng.org";
 
   private long maxAnalyzeTimeMillis; // , maxThinkingTimeMillis;
   private int cmdNumber;
@@ -94,10 +91,6 @@ public Leelaz() throws IOException, JSONException {
     printCommunication = config.getBoolean("print-comms");
     maxAnalyzeTimeMillis = MINUTE * config.getInt("max-analyze-time-minutes");
 
-    if (config.getBoolean("automatically-download-latest-network")) {
-      updateToLatestNetwork();
-    }
-
     // command string for starting the engine
     engineCommand = config.getString("engine-command");
     // substitute in the weights file
@@ -207,43 +200,6 @@ public void normalQuit() {
     }
   }
 
-  private void updateToLatestNetwork() {
-    try {
-      if (needToDownloadLatestNetwork()) {
-        int dialogResult =
-            JOptionPane.showConfirmDialog(
-                null,
-                resourceBundle.getString("LizzieFrame.display.download-latest-network-prompt"));
-        if (dialogResult == JOptionPane.YES_OPTION) {
-          Util.saveAsFile(
-              new URL(baseURL + "/networks/" + getBestNetworkHash() + ".gz"),
-              new File(Lizzie.config.leelazConfig.getString("network-file")));
-        }
-      }
-    } catch (IOException e) {
-      e.printStackTrace();
-      // now we're probably still ok. Maybe we're offline -- then it's not a big problem.
-    }
-  }
-
-  private String getBestNetworkHash() throws IOException {
-    return Util.downloadAsString(new URL(baseURL + "/best-network-hash")).split("\n")[0];
-  }
-
-  private boolean needToDownloadLatestNetwork() throws IOException {
-    File networkFile = new File(Lizzie.config.leelazConfig.getString("network-file"));
-    if (!networkFile.exists()) {
-      return true;
-    } else {
-      String currentNetworkHash = Util.getSha256Sum(networkFile);
-      if (currentNetworkHash == null) return true;
-
-      String bestNetworkHash = getBestNetworkHash();
-
-      return !currentNetworkHash.equals(bestNetworkHash);
-    }
-  }
-
   /** Initializes the input and output streams */
   private void initializeStreams() {
     inputStream = new BufferedInputStream(process.getInputStream());