[lttng-dev] [PATCH urcu] tap-driver.sh: flush stdout after each test result

Michael Jeanson mjeanson at efficios.com
Thu Mar 14 11:35:39 EDT 2019

This is useful in a CI system where stdout is fully buffered and you
look at the console output to see which test is hanging.

Signed-off-by: Michael Jeanson <mjeanson at efficios.com>
 config/tap-driver.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/config/tap-driver.sh b/config/tap-driver.sh
index 4254e2b..12742ca 100755
--- a/config/tap-driver.sh
+++ b/config/tap-driver.sh
@@ -273,6 +273,9 @@ function report(result, details)
     msg = msg " " details
   # Output on console might be colorized.
   print decorate_result(result) msg
+  # Flush stdout after each test result, this is useful when stdout
+  # is buffered, for example in a CI system.
+  fflush()
   # Log the result in the log file too, to help debugging (this is
   # especially true when said result is a TAP error or "Bail out!").
   print result msg | "cat >&3";

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