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fix(consume): consume_direct.sh files contained invalid commands because value after --filter flag was not enclosed in parenthesis (issue reported by flcl42) #1987

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fix(consume): consume_direct.sh files contained invalid commands because value after --filter flag was not enclosed in parenthesis (issue reported by flcl42) #1987

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8eb44ff
fixed issue reported by flcl42 where the command contained in consume…
felix314159 Aug 4, 2025
4d71320
fixed sh command for geths evm, revised nethtest fix
felix314159 Aug 5, 2025
e767852
removed logging workaround
felix314159 Aug 5, 2025
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15 changes: 14 additions & 1 deletion src/ethereum_clis/clis/nethermind.py
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Original file line number Diff line number Diff line change
Expand Up @@ -55,13 +55,26 @@ def _consume_debug_dump(
result: subprocess.CompletedProcess,
debug_output_path: Path,
):
consume_direct_call = " ".join(command)
# ensure that the --filter flag value is wrapped in parentheses
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Suggested change
# ensure that the --filter flag value is wrapped in parentheses
# ensure that the --filter flag value is wrapped in double-quotes

consume_direct_call = ""
prev_command_was_filter_flag = False
for s in command:
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Afaik, all parameters that contain spaces need to be enclosed in double-quotes, not only the ones after filter, and not only for the nethermind commands.

Should we look into pre-processing the command parameter before it's passed to this function?

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A quick gpt-query yields that we should use shlex.quote on every parameter to handle this automatically:

import shlex

args = ["my command", "--option", "value with spaces", "file$(rm -rf /)"]

command = " ".join(shlex.quote(arg) for arg in args)
print(command)

Output:

'my command' --option 'value with spaces' 'file$(rm -rf /)'

And shlex is included in the default libraries so no new package dependencies.

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@felix314159 felix314159 Aug 5, 2025 •
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I have not heard of shlex before, so I think it will be harder to read the code if someone sees shlex.quote() because chances are the reader is not familar with that function. But the current solution is just a few lines of trivial code. I also saw in shlex docs that that function seems to be incompatible with windows, I know that windows support itsn't a prio but why make potential future support harder for no reason.

We could add pre-processing to command but we need separate logic for fixing the sh command produced by geth's evm anyway, so its simpler to have separate fixes for nethtest and geth and then decide to not add support for more execution clients. For geth's evm specifically we create faulty .sh files for blockchain tests, I will add another commit to fix it too. All problems are just results from our decision to allow weird chars like :, [ and ] in filenames which makes escaping of names ugly and error-prone.

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@felix314159 felix314159 Aug 5, 2025 •
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Working on this takes me longer than expected because I can't get logging to work for some reason. Edit: found temporary workaround

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from our decision to allow weird chars like :, [ and ] in filenames

Just for clarification, they are part of the test names, not file names, this is a pytest intrinsic issue.

I also saw in shlex docs that that function seems to be incompatible with windows

This will end up in a .sh file anyway, which needs bash to run. If required it we could build a windows script in the future but I feel like that's out of scope for this PR.

I think it will be harder to read the code if someone sees shlex.quote() because chances are the reader is not familar with that function.

That's true, I haven't heard of it before but (a) this is deep into the weeds of the code anyway, I would be more concerned if this was part of a test, and (b) it's really easy to look it up.

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@felix314159 felix314159 Aug 7, 2025 •
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Yeah good point with the .sh lol.. I would not be against shlex if I didn't already build a solution. Can re-do this PR and start from scratch (and use shlex) if you want

if prev_command_was_filter_flag:
if s[0] != '"':
s = '"' + s + '"'
prev_command_was_filter_flag = False
consume_direct_call += s + " "
if s.strip() == "--filter":
prev_command_was_filter_flag = True
consume_direct_call = consume_direct_call.strip()

consume_direct_script = textwrap.dedent(
f"""\
#!/bin/bash
{consume_direct_call}
"""
)

dump_files_to_directory(
str(debug_output_path),
{
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