Errors from mega-linter runner

[bcdady]

Describe the bug
The current v4 image is displaying python errors instead of outputting the expected table of results

To Reproduce

1. Setup mega-linter runner locally via these instructions
2. run npx mega-linter-runner

• for what it may be worth, I'm getting the same error from the 'latest' / insiders image, and the few flavors I've tried

3. See error output

Expected behavior
mega-linter completes successfully, including showing the results table, similar to the example shown at https://nvuillam.github.io/mega-linter/mega-linter-runner/

Error Output

[Text Reporter] Generated TEXT report: /tmp/lint/report/linters_logs/SUCCESS-JSON_V8R.log
multiprocessing.pool.RemoteTraceback:
"""
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/multiprocessing/pool.py", line 125, in worker
    result = (True, func(*args, **kwds))
  File "/megalinter/MegaLinter.py", line 27, in run_linters
    linter.run()
  File "/megalinter/Linter.py", line 451, in run
    reporter.produce_report()
  File "/megalinter/reporters/TextReporter.py", line 76, in produce_report
    text_report_lines += self.master.complete_text_reporter_report(self)
  File "/megalinter/linters/CSpellLinter.py", line 64, in complete_text_reporter_report
    data = json.load(json_file)
  File "/usr/local/lib/python3.8/json/__init__.py", line 293, in load
    return loads(fp.read(),
  File "/usr/local/lib/python3.8/json/__init__.py", line 357, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python3.8/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/lib/python3.8/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 33 column 5 (char 634)
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/local/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/megalinter/run.py", line 15, in <module>
    linter.run()
  File "/megalinter/MegaLinter.py", line 125, in run
    self.process_linters_parallel(active_linters, linters_do_fixes)
  File "/megalinter/MegaLinter.py", line 208, in process_linters_parallel
    updated_linters = pool_result.get()
  File "/usr/local/lib/python3.8/multiprocessing/pool.py", line 771, in get
    raise self._value
json.decoder.JSONDecodeError: Expecting value: line 33 column 5 (char 634)

[bcdady]

@nvuillam - is there any relatively easy way to call a specific, alternative, image tag?
I presume that would be the fastest way to get mega-linter working again.

[nvuillam]

I think that the problem is caused by a json error in your .cspell.json file

I'll catch it but meanwhile, open .cspell.json in your IDE, solve the typo, and mega linter should run again :)

[nvuillam]

And to reply to your question, you can call any previous version of Mega-Linter with Mega-Linter runner, using parameter --release

Example: npx mega-linter-runner --release v4.24.0

But i'm afraid that you'll still have the crash while .cspell.json can not be parsed

[nvuillam]

@bcdady problem fixed :)
now even with a broken json in .cspell.json, you should see an error message but no python crash and Mega-Linter completes anyway :)

It is for the moment only available in insiders version , i'll make an official patch tonight :)

[bcdady]

oh man - yep, I left a comma at the end of the .cspell.json 🤦
Thank you!!!

[nvuillam]

you're welcome :)