From bf326fa3f4c40412c3e945d0b0eb7e81325e7d4d Mon Sep 17 00:00:00 2001
From: olaola <olaola@google.com>
Date: Wed, 21 Mar 2018 11:22:12 -0700
Subject: Propagating and printing server logs on demand.

WANT_LGTM=all
TESTED=RBE, unit tests
RELNOTES: None
PiperOrigin-RevId: 189938345
---
 .../google/devtools/build/lib/remote/RemoteModule.java   | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'src/main/java/com/google/devtools/build/lib/remote/RemoteModule.java')

diff --git a/src/main/java/com/google/devtools/build/lib/remote/RemoteModule.java b/src/main/java/com/google/devtools/build/lib/remote/RemoteModule.java
index 72c58d312b..dbb0e063b4 100644
--- a/src/main/java/com/google/devtools/build/lib/remote/RemoteModule.java
+++ b/src/main/java/com/google/devtools/build/lib/remote/RemoteModule.java
@@ -30,6 +30,7 @@ import com.google.devtools.build.lib.runtime.ServerBuilder;
 import com.google.devtools.build.lib.util.AbruptExitException;
 import com.google.devtools.build.lib.util.ExitCode;
 import com.google.devtools.build.lib.vfs.FileSystem.HashFunction;
+import com.google.devtools.build.lib.vfs.FileSystemUtils;
 import com.google.devtools.build.lib.vfs.Path;
 import com.google.devtools.common.options.OptionsBase;
 import com.google.devtools.common.options.OptionsProvider;
@@ -97,6 +98,18 @@ public final class RemoteModule extends BlazeModule {
     String buildRequestId = env.getBuildRequestId().toString();
     String commandId = env.getCommandId().toString();
     logger.info("Command: buildRequestId = " + buildRequestId + ", commandId = " + commandId);
+    Path logDir =
+        env.getOutputBase().getRelative(env.getRuntime().getProductName() + "-remote-logs");
+    try {
+      // Clean out old logs files.
+      if (logDir.exists()) {
+        FileSystemUtils.deleteTree(logDir);
+      }
+      logDir.createDirectory();
+    } catch (IOException e) {
+      env.getReporter()
+          .handle(Event.error("Could not create base directory for remote logs: " + logDir));
+    }
     RemoteOptions remoteOptions = env.getOptions().getOptions(RemoteOptions.class);
     AuthAndTLSOptions authAndTlsOptions = env.getOptions().getOptions(AuthAndTLSOptions.class);
     HashFunction hashFn = env.getRuntime().getFileSystem().getDigestFunction();
@@ -154,7 +167,8 @@ public final class RemoteModule extends BlazeModule {
         executor = null;
       }
 
-      actionContextProvider = new RemoteActionContextProvider(env, cache, executor, digestUtil);
+      actionContextProvider =
+          new RemoteActionContextProvider(env, cache, executor, digestUtil, logDir);
     } catch (IOException e) {
       env.getReporter().handle(Event.error(e.getMessage()));
       env.getBlazeModuleEnvironment().exit(new AbruptExitException(ExitCode.COMMAND_LINE_ERROR));
-- 
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