support/testing/infra: add log_file_path() function

Some tests will need to grep through the build log to verify that some
features are working are expected. In order to allow them to open the
build log, we provide a new function called log_file_path(), which
returns the path to the log file if available.

We also use this function in open_log_file().

Note that open_log_file() cannot be used directly to grep through the
log file at the end of a build: because it opens in "a+" mode, it
greps starting from the end of the file.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Thomas Petazzoni 2021-08-17 10:39:27 +02:00 committed by Yann E. MORIN
parent 040f75aa06
commit 1259d40b0a

View file

@ -10,17 +10,18 @@ ARTIFACTS_URL = "http://autobuild.buildroot.net/artefacts/"
BASE_DIR = os.path.realpath(os.path.join(os.path.dirname(__file__), "../../.."))
def log_file_path(builddir, stage, logtofile=True):
"""Return path to log file"""
return "{}-{}.log".format(builddir, stage) if logtofile else None
def open_log_file(builddir, stage, logtofile=True):
"""
Open a file for logging and return its handler.
If logtofile is True, returns sys.stdout. Otherwise opens a file
with a suitable name in the build directory.
"""
if logtofile:
fhandle = open("{}-{}.log".format(builddir, stage), 'a+')
else:
fhandle = sys.stdout
return fhandle
return open(log_file_path(builddir, stage, logtofile), 'a+') if logtofile else sys.stdout
def basepath(relpath=""):