dumpling: precheck log file permisssion (#61101)

[ti-chi-bot]

This is an automated cherry-pick of #61101

What problem does this PR solve?

Issue Number: close #61100
ref pingcap/log#43

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[ti-chi-bot]

@GMHDBJD This PR has conflicts, I have hold it.
Please resolve them or ask others to resolve them, then comment /unhold to remove the hold label.

[GMHDBJD]

LGTM

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-8.5@b957a04). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.5     #61102   +/-   ##
================================================
  Coverage               ?   76.4611%           
================================================
  Files                  ?       1642           
  Lines                  ?     450124           
  Branches               ?          0           
================================================
  Hits                   ?     344170           
  Misses                 ?      85066           
  Partials               ?      20888           

Flag	Coverage Δ
integration	48.6894% <ø> (?)
unit	72.6898% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.9278% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	52.3098% <0.0000%> (?)

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[GMHDBJD]

/retest

[Benjamin2037]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Benjamin2037, GMHDBJD

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Details

Needs approval from an approver in each of these files:

• OWNERS [Benjamin2037,GMHDBJD]
• dumpling/OWNERS [Benjamin2037,GMHDBJD]

Approvers can indicate their approval by writing /approve in a comment
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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-05-14 05:53:30.986476544 +0000 UTC m=+510877.134437764: ☑️ agreed by GMHDBJD.
• 2025-05-14 06:23:41.254404343 +0000 UTC m=+512687.402365561: ☑️ agreed by Benjamin2037.

[GMHDBJD]

/merge

[ti-chi-bot]

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