fix(auto-installing): catch logs of forge-installer. Closes #1420.

HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/ManagedProcess.java

@@ -17,8 +17,13 @@
  */
 package org.jackhuang.hmcl.util.platform;
 
+import org.jackhuang.hmcl.launch.StreamPump;
+import org.jackhuang.hmcl.util.Lang;
+
+import java.io.IOException;
 import java.util.*;
 import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.function.Consumer;
 
 /**
  * The managed process.
@@ -36,6 +41,12 @@ public class ManagedProcess {
     private final Queue<String> lines = new ConcurrentLinkedQueue<>();
     private final List<Thread> relatedThreads = new ArrayList<>();
 
+    public ManagedProcess(ProcessBuilder processBuilder) throws IOException {
+        this.process = processBuilder.start();
+        this.commands = processBuilder.command();
+        this.classpath = null;
+    }
+
     /**
      * Constructor.
      *
@@ -119,6 +130,14 @@ public class ManagedProcess {
         relatedThreads.add(thread);
     }
 
+    public synchronized void pumpInputStream(Consumer<String> onLogLine) {
+        addRelatedThread(Lang.thread(new StreamPump(process.getInputStream(), onLogLine), "ProcessInputStreamPump", true));
+    }
+
+    public synchronized void pumpErrorStream(Consumer<String> onLogLine) {
+        addRelatedThread(Lang.thread(new StreamPump(process.getErrorStream(), onLogLine), "ProcessErrorStreamPump", true));
+    }
+
     /**
      * True if the managed process is running.
      */

HMCLCore/src/main/java/org/jackhuang/hmcl/util/platform/SystemUtils.java

@@ -18,10 +18,11 @@
 package org.jackhuang.hmcl.util.platform;
 
 import java.io.IOException;
-import java.lang.ProcessBuilder.Redirect;
 import java.util.Arrays;
 import java.util.List;
 
+import static org.jackhuang.hmcl.util.Logging.LOG;
+
 public final class SystemUtils {
     private SystemUtils() {}
 
@@ -30,10 +31,14 @@ public final class SystemUtils {
     }
 
     public static int callExternalProcess(List<String> command) throws IOException, InterruptedException {
-        Process process = new ProcessBuilder(command)
-                .redirectOutput(Redirect.INHERIT)
-                .redirectError(Redirect.INHERIT)
-                .start();
-        return process.waitFor();
+        ManagedProcess managedProcess = new ManagedProcess(new ProcessBuilder(command));
+        managedProcess.pumpInputStream(SystemUtils::onLogLine);
+        managedProcess.pumpErrorStream(SystemUtils::onLogLine);
+        return managedProcess.getProcess().waitFor();
     }
+
+    private static void onLogLine(String log) {
+        LOG.info(log);
+    }
+
 }