sandbox: Better error messages and the noisy debug logs of the namespace-runner now have to be explicitly activated via --sandbox_debug.

Fixes #424.

--
MOS_MIGRATED_REVID=102566625

1 files changed, 10 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/sandbox/SandboxOptions.java b/src/main/java/com/google/devtools/build/lib/sandbox/SandboxOptions.java
index ad4fa50dc3..4c13ddb7ec 100644
--- a/src/main/java/com/google/devtools/build/lib/sandbox/SandboxOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/sandbox/SandboxOptions.java
@@ -28,4 +28,14 @@ public class SandboxOptions extends OptionsBase {
     help = "Do not print a warning when sandboxed execution is not supported on this system."
   )
   public boolean ignoreUnsupportedSandboxing;
+
+  @Option(
+    name = "sandbox_debug",
+    defaultValue = "false",
+    category = "strategy",
+    help =
+        "Let the sandbox print debug information on execution. This might help developers of "
+            + "Bazel or Skylark rules with debugging failures due to missing input files, etc."
+  )
+  public boolean sandboxDebug;
 }