fix: Adapting to QProcess Usage in Qt 6

[LiHua000]

Log: The abnormal execution of QProcess resulted in empty fuser output, causing port availability verification to fail, which ultimately led to connection failures with the correct debugging backend and freeze ide

Bug: https://pms.uniontech.com/bug-view-315851.html

Summary by Sourcery

Bug Fixes:

• Invoke fuser via bash -c instead of directly passing the command to QProcess to capture its output correctly.

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 在修改后的代码中，使用了 bash -c 来执行命令，这可能会增加命令执行的复杂性和潜在的安全风险。
• process.readAll() 可能会读取到错误信息，但没有对读取到的内容进行进一步处理或检查。

是否建议立即修改:

• 是

建议的修改措施:

• 考虑使用更安全的方法来检查端口是否被占用，例如使用系统调用或现有的库函数。
• 对 process.readAll() 的返回值进行解析，确保正确处理命令执行的结果，包括可能的错误信息。
• 增加对 process.waitForFinished() 的超时处理，以防止无限等待的情况发生。

[sourcery-ai]

Reviewer's Guide

This PR adapts the QProcess invocation to Qt 6’s stricter API by invoking the shell explicitly when running the fuser command to reliably detect free ports.

File-Level Changes

Change	Details	Files
Use explicit shell invocation for QProcess under Qt 6	Replaced process.start(cmd) with process.start("bash", {"-c", cmd}) Retained waitForFinished() and output reading logic unchanged	src/tools/debugadapter/debugger/python/pythondebugger.cpp

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[sourcery-ai]

Hey @LiHua000 - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟡 General issues: 1 issue found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

suggestion: Capture stderr output for better diagnostics

Call process.readAllStandardError() to catch fuser or shell errors and improve debug info when port checks fail.

Suggested change

	process.waitForFinished();
	QString ret = process.readAll();
	process.waitForFinished();
	// capture both stdout and stderr for better diagnostics
	QString ret = process.readAllStandardOutput();
	QString err = process.readAllStandardError();
	if (!err.isEmpty()) {
	qDebug() << "checkPortFree stderr:" << err.trimmed();
	}

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: deepin-mozart, LiHua000

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Details

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS [deepin-mozart]

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