commit 159ee3fd7c7243990f525b37467298a36f8ee462
author Damien Martin-Guillerez <dmarting@google.com> Mon Sep 14 14:01:25 2015 +0000
committer Kristina Chodorow <kchodorow@google.com> Mon Sep 14 15:41:10 2015 +0000
tree b10b2b2fac08f82a4cb18d37347968d930bafa6b
parent 4b67d4fed1f4ca8e4b1dd7dce47061b6b3779860

Configured Java logging for Bazel

Previously the logger output was sent out to the console,
leading to garbage information in batch mode. Now, the log
are sent to a log file in the output base.

--
MOS_MIGRATED_REVID=102989990

src/main/cpp/blaze_startup_options.cc

diff --git a/src/main/cpp/blaze_startup_options.cc b/src/main/cpp/blaze_startup_options.cc
index 05d4d39..1a4ecb8 100644
--- a/src/main/cpp/blaze_startup_options.cc
+++ b/src/main/cpp/blaze_startup_options.cc
@@ -142,8 +142,23 @@
 blaze_exit_code::ExitCode BlazeStartupOptions::AddJVMArguments(
     const string &host_javabase, vector<string> *result,
     const vector<string> &user_options, string *error) const {
-  // TODO(bazel-team): see what tuning options make sense in the
-  // open-source world.
+  // Configure logging
+  const string propFile = output_base + "/javalog.properties";
+  if (!WriteFile(
+      "handlers=java.util.logging.FileHandler\n"
+      ".level=INFO\n"
+      "java.util.logging.FileHandler.level=INFO\n"
+      "java.util.logging.FileHandler.pattern="
+      + output_base + "/java.log\n"
+      "java.util.logging.FileHandler.limit=50000\n"
+      "java.util.logging.FileHandler.count=1\n"
+      "java.util.logging.FileHandler.formatter="
+      "java.util.logging.SimpleFormatter\n",
+      propFile)) {
+    perror(("Couldn't write logging file " + propFile).c_str());
+  } else {
+    result->push_back("-Djava.util.logging.config.file=" + propFile);
+  }
   return blaze_exit_code::SUCCESS;
 }