Add --no_merge option for source scanner

[JustinWonjaePark]

• New Features
  • Added --no_merge command-line and settings option to FOSSLight Scanner to prevent folder-level merging during source code analysis.
  • The option is passed to FOSSLight Source Scanner (as merge_by_folder) and to the container-based scan flow.
  • Added a description of the --no_merge option in the help message.
• Tests
  • Updated test cases in test_cli.py and test__parse_setting.py to match the updated return signature of parsing functions.

Summary by CodeRabbit

• New Features
  • Added a new --no_merge option to keep source scan results file-based (no merge by folder).
  • The same setting is now supported via saved scan settings.
• Bug Fixes
  • Invalid no_merge values are now safely normalized to a default behavior.
• Tests
  • Updated CLI and settings parsing tests and fixtures to cover no_merge.
• Chores
  • Updated the scanner dependency to a newer compatible version.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Review profile: CHILL

Plan: Pro

Run ID: d5d35b6b-c0be-4e35-af8a-6de14662f990

📥 Commits

Reviewing files that changed from the base of the PR and between a47689b and 4e43a9e.

📒 Files selected for processing (1)

• tests/fixtures/setting.json

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📝 Walkthrough

Walkthrough

This PR adds a new no_merge boolean option for source analysis, wires it through setting parsing and CLI handling, and uses it to control scanner merge behavior. It also bumps the fosslight_source dependency version.

Changes

no_merge option support

Layer / File(s)	Summary
Setting parsing for no_merge src/fosslight_scanner/_parse_setting.py, tests/test__parse_setting.py	parse_setting_json reads a new no_merge boolean, validates/coerces it, and includes it in the returned tuple; test expectations updated.
CLI argument wiring for no_merge src/fosslight_scanner/cli.py, src/fosslight_scanner/_help.py, tests/test_cli.py	set_args() accepts, resolves precedence for, and returns no_merge; main() adds a --no_merge flag, forwards it to run_main(), and help text/tests are updated.
Scanner execution using no_merge src/fosslight_scanner/fosslight_scanner.py	run_scanner and run_main accept no_merge, controlling merge_by_folder in the API path and appending --no_merge to the Docker command when set.
Dependency version bump pyproject.toml	fosslight_source requirement bumped from >=2.2.16,<3.0.0 to >=2.3.3,<3.0.0.

Estimated code review effort: 2 (Simple) | ~15 minutes

Possibly related PRs

• fosslight/fosslight_scanner#184: Also modifies the shared setting/CLI plumbing in _parse_setting.py and cli.py, with overlapping tuple and option wiring.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: adding a new --no_merge option to the source scanner.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/no_merge

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