1 files changed, 46 insertions, 0 deletions
diff --git a/.gitlab-ci/bare-metal/serial-buffer.py b/.gitlab-ci/bare-metal/serial-buffer.py
new file mode 100755
index 00000000000..805303d0aa7
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+++ b/.gitlab-ci/bare-metal/serial-buffer.py
@@ -0,0 +1,46 @@
+#!/usr/bin/python3
+
+# Copyright © 2020 Google LLC
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+# Tiny script to read bytes from serial, and write the output to stdout, with a
+# buffer in between so we don't lose serial output from its buffer.
+#
+# We don't use 'cu' because it requires stdin to be hooked up and I never
+# managed to make that work without getting blocked somewhere.  We don't use
+# 'conserver' because it's non-free.
+
+import sys
+import serial
+import select
+import os
+import posix
+
+dev=sys.argv[1]
+
+ser = serial.Serial(dev, 115200, timeout=10)
+
+while True:
+    bytes = ser.read()
+    sys.stdout.buffer.write(bytes)
+    sys.stdout.flush()
+
+ser.close()