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test/py: Allow passing input to a program

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When running a program on the host, allow input to be passed in as stdin.
This is needed for running sfdisk, for example.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-10-23 17:25:57 -06:00
parent c700f109a3
commit 15156c95e9
2 changed files with 8 additions and 5 deletions
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8
test/py/multiplexed_log.py
View file

@ -109,7 +109,7 @@ class RunAndLog(object):
"""Clean up any resources managed by this object."""
pass
def run(self, cmd, cwd=None, ignore_errors=False):
def run(self, cmd, cwd=None, ignore_errors=False, stdin=None):
"""Run a command as a sub-process, and log the results.
The output is available at self.output which can be useful if there is
@ -123,6 +123,7 @@ class RunAndLog(object):
function will simply return if the command cannot be executed
or exits with an error code, otherwise an exception will be
raised if such problems occur.
stdin: Input string to pass to the command as stdin (or None)
Returns:
The output as a string.
@ -135,8 +136,9 @@ class RunAndLog(object):
try:
p = subprocess.Popen(cmd, cwd=cwd,
stdin=None, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
(stdout, stderr) = p.communicate()
stdin=subprocess.PIPE if stdin else None,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
(stdout, stderr) = p.communicate(input=stdin)
if stdout is not None:
stdout = stdout.decode('utf-8')
if stderr is not None:

5
test/py/u_boot_utils.py
View file

@ -154,7 +154,7 @@ def wait_until_file_open_fails(fn, ignore_errors):
return
raise Exception('File can still be opened')
def run_and_log(u_boot_console, cmd, ignore_errors=False):
def run_and_log(u_boot_console, cmd, ignore_errors=False, stdin=None):
"""Run a command and log its output.
Args:
@ -166,6 +166,7 @@ def run_and_log(u_boot_console, cmd, ignore_errors=False):
will simply return if the command cannot be executed or exits with
an error code, otherwise an exception will be raised if such
problems occur.
stdin: Input string to pass to the command as stdin (or None)
Returns:
The output as a string.
@ -173,7 +174,7 @@ def run_and_log(u_boot_console, cmd, ignore_errors=False):
if isinstance(cmd, str):
cmd = cmd.split()
runner = u_boot_console.log.get_runner(cmd[0], sys.stdout)
output = runner.run(cmd, ignore_errors=ignore_errors)
output = runner.run(cmd, ignore_errors=ignore_errors, stdin=stdin)
runner.close()
return output