Fix netstat on linux.

[AlexSkrypnyk]

Summary by CodeRabbit

• Bug Fixes
  • Improved accuracy in identifying server processes on Linux systems when checking which process is using a specific port.

[coderabbitai]

Walkthrough

The pull request updates the command used in the getPidNetstat method within the PhpServerContext class to include the -p flag in the netstat command. This adjustment allows the command to display the PID and program name of the process listening on a specified port, improving the accuracy of process identification. A comment was also added to indicate that the -p option is only available on Linux. No changes were made to the method's logic or to any public or exported entities.

Changes

File(s)	Change Summary
src/DrevOps/BehatPhpServer/PhpServerContext.php	Updated getPidNetstat method to add -p flag to netstat command and added a Linux-only comment.

Sequence Diagram(s)

sequenceDiagram
    participant TestSuite
    participant PhpServerContext
    participant OS

    TestSuite->>PhpServerContext: getPidNetstat(port)
    PhpServerContext->>OS: Execute netstat -anp | grep ':port' | grep 'LISTEN'
    OS-->>PhpServerContext: Return netstat output with PID/program name
    PhpServerContext-->>TestSuite: Return PID

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Possibly related PRs

• Implemented better PID handling. #39: Introduced and refactored the getPidNetstat and getPidLsof methods for improved PID handling in the same class and file.

---

📜 Recent review details

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Reviewing files that changed from the base of the PR and between 9522278 and aa1cef9.

📒 Files selected for processing (1)

• src/DrevOps/BehatPhpServer/PhpServerContext.php (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (3)

• GitHub Check: PHP 8.4 on macos-latest
• GitHub Check: PHP 8.3 on macos-latest
• GitHub Check: PHP 8.2 on macos-latest

🔇 Additional comments (1)

src/DrevOps/BehatPhpServer/PhpServerContext.php (1)

600-601:

❓ Verification inconclusive

Good addition of the -p flag for Linux netstat

Adding the -p flag to the netstat command is essential for retrieving the PID information on Linux systems. The added comment clearly documents this Linux-specific feature, which is helpful for maintainability.

This change will fix the process identification on Linux systems, making the server management more reliable.

---

🏁 Script executed:

#!/bin/bash
# Verify that netstat with -p flag works on Linux systems and shows PID information

# Check if we're on Linux
if [ -f /etc/os-release ]; then
  echo "Running on Linux. Checking netstat capabilities:"
  
  # Check if netstat is available
  if command -v netstat &> /dev/null; then
    echo "netstat is available. Testing with -p flag:"
    
    # Run netstat with -p flag and check if it shows PID information
    netstat -anp 2>/dev/null | head -n 5
    
    # Check if the output contains PID information (typically shown as PID/program)
    if netstat -anp 2>/dev/null | grep -q "/"; then
      echo "SUCCESS: netstat -p shows PID information as expected"
    else
      echo "WARNING: netstat -p doesn't seem to show PID information"
    fi
  else
    echo "netstat is not available on this system"
  fi
else
  echo "Not running on Linux. The -p flag may not be supported on this platform."
fi

Length of output: 183

---

Caution: netstat –p is Linux-only; please verify on a Linux environment

We weren’t able to confirm netstat -anp on this CI runner (not Linux). Before merging, ensure:

• The Linux machines (CI/production) where this runs have netstat with -p support.
• PhpServerContext.php’s listener‐detection logic correctly parses the PID/Program column.
• You’ve tested the fallback path or added an OS check (e.g. use lsof on macOS) if you need cross-platform support.

[src/DrevOps/BehatPhpServer/PhpServerContext.php:600–601]

// -p is only available on Linux.
$command = sprintf(
    "netstat -anp 2>/dev/null | grep ':%s' | grep 'LISTEN'",
    $port
);

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.00%. Comparing base (9522278) to head (aa1cef9).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #40   +/-   ##
=======================================
  Coverage   75.00%   75.00%           
=======================================
  Files           3        3           
  Lines         432      432           
=======================================
  Hits          324      324           
  Misses        108      108           

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