MCBDSHost - Professional Minecraft Bedrock Server Management

File Path Parsing Fix

Troubleshooting FILE_PATH_PARSING_FIX.md

File Path Parsing Fix - World Name with Spaces

Issue Fixed

The ParseFileList() method now correctly handles the world name "Bedrock level" which contains a space, preventing incorrect file paths.

The Problem

The save query command returns file paths like:

Bedrock level/db/000011.ldb:455, Bedrock level/levelname.txt:13

The old parsing logic was incorrectly handling the space in "Bedrock level", resulting in:

  • Wrong: level/levelname.txt
  • Correct: levelname.txt

Example of the Issue

Server Response:

[2025-01-15 14:30:00] Bedrock level/db/000011.ldb:455, Bedrock level/levelname.txt:13

Old Code Result:

Files to copy:
- level/db/000011.ldb           Missing "Bedrock "
- level/levelname.txt            Missing "Bedrock "

Attempted Copy:

Source: c:\Binaries\BDS1.12.124.2\worlds\Bedrock level\level/levelname.txt  
                                                         Wrong!

The Solution

The updated code correctly treats "Bedrock level/" as a single world name prefix:

Key Changes

  1. Find the world prefix once at the start of the line
  2. Split by commas to get individual file entries
  3. Remove the world prefix from each entry

Implementation

private List<string> ParseFileList()
{
    var files = new List<string>();
    var log = _runnerService.GetLog();
    var lines = log.Split('\n', StringSplitOptions.RemoveEmptyEntries);
    
    for (int i = lines.Length - 1; i >= 0; i--)
    {
        var line = lines[i];
        if (line.Contains("Bedrock level/", StringComparison.OrdinalIgnoreCase))
        {
            // Find where "Bedrock level/" starts
            var firstBedrockIndex = line.IndexOf("Bedrock level/", StringComparison.OrdinalIgnoreCase);
            if (firstBedrockIndex >= 0)
            {
                // Extract everything from "Bedrock level/" onwards
                var fileListPortion = line.Substring(firstBedrockIndex);
                
                // Split by comma to get individual entries
                var entries = fileListPortion.Split(',', StringSplitOptions.TrimEntries);

                foreach (var entry in entries)
                {
                    // Extract path before the colon (which indicates file size)
                    var colonIndex = entry.IndexOf(':');
                    string fullPath = colonIndex > 0 
                         entry.Substring(0, colonIndex).Trim() 
                        : entry.Trim();
                    
                    // Remove the "Bedrock level/" prefix
                    const string worldPrefix = "Bedrock level/";
                    if (fullPath.StartsWith(worldPrefix, StringComparison.OrdinalIgnoreCase))
                    {
                        var relativePath = fullPath.Substring(worldPrefix.Length);
                        files.Add(relativePath);
                    }
                }
            }
            break;
        }
    }
    
    return files;
}

Parsing Flow

Input (from save query)

[2025-01-15 14:30:00] Bedrock level/db/000011.ldb:455, Bedrock level/db/CURRENT:16, Bedrock level/levelname.txt:13

Step 1: Find "Bedrock level/"

[2025-01-15 14:30:00] Bedrock level/db/000011.ldb:455, Bedrock level/db/CURRENT:16, Bedrock level/levelname.txt:13
                      
                      Start here

Step 2: Extract from this point

Bedrock level/db/000011.ldb:455, Bedrock level/db/CURRENT:16, Bedrock level/levelname.txt:13

Step 3: Split by comma

Entry 1: "Bedrock level/db/000011.ldb:455"
Entry 2: "Bedrock level/db/CURRENT:16"
Entry 3: "Bedrock level/levelname.txt:13"

Step 4: For each entry, remove size

Entry 1: "Bedrock level/db/000011.ldb"  (remove :455)
Entry 2: "Bedrock level/db/CURRENT"     (remove :16)
Entry 3: "Bedrock level/levelname.txt"  (remove :13)

Step 5: Remove "Bedrock level/" prefix

 "db/000011.ldb"
 "db/CURRENT"
 "levelname.txt"

Step 6: Combine with world path

Source: c:\Binaries\BDS1.12.124.2\worlds\Bedrock level\db\000011.ldb      
Source: c:\Binaries\BDS1.12.124.2\worlds\Bedrock level\db\CURRENT         
Source: c:\Binaries\BDS1.12.124.2\worlds\Bedrock level\levelname.txt      

Logging Output

Before Fix

[BackupHostedService] Parsed file: level/db/000011.ldb from entry: Bedrock level/db/000011.ldb:455
[BackupHostedService] Parsed file: level/levelname.txt from entry: Bedrock level/levelname.txt:13
[BackupHostedService] Source file not found: c:\Binaries\BDS1.12.124.2\worlds\Bedrock level\level\levelname.txt

After Fix

[BackupHostedService] Parsed file: db/000011.ldb from entry: Bedrock level/db/000011.ldb:455
[BackupHostedService] Parsed file: levelname.txt from entry: Bedrock level/levelname.txt:13
[BackupHostedService] Copied: db/000011.ldb
[BackupHostedService] Copied: levelname.txt
[BackupHostedService] Backup completed. Copied 42 files, 0 failed

Test Cases

Test Case 1: Files in subdirectory

Input:  "Bedrock level/db/000011.ldb:455"
Output: "db/000011.ldb"
Path:   C:\...\worlds\Bedrock level\db\000011.ldb  

Test Case 2: Files in root

Input:  "Bedrock level/levelname.txt:13"
Output: "levelname.txt"
Path:   C:\...\worlds\Bedrock level\levelname.txt  

Test Case 3: Deep nesting

Input:  "Bedrock level/db/some/deep/path/file.dat:1024"
Output: "db/some/deep/path/file.dat"
Path:   C:\...\worlds\Bedrock level\db\some\deep\path\file.dat  

Edge Cases Handled

  1. World name with space: "Bedrock level"
  2. Multiple path separators: "db/subfolder/file"
  3. Files in root directory: "levelname.txt"
  4. File sizes in response: "file.ext:1234"
  5. Trimming whitespace: Handles spaces around commas

Benefits

  1. Correctness: Properly handles world names with spaces
  2. Robustness: Works with any depth of subdirectories
  3. Clarity: Clear logging shows exactly what's being parsed
  4. Reliability: No more "file not found" errors for valid files

Verification

To verify the fix:

  1. Trigger a backup (manual or scheduled)
  2. Check logs for:
[BackupHostedService] Parsed file: levelname.txt from entry: Bedrock level/levelname.txt:13
[BackupHostedService] Copied: levelname.txt
  1. Verify backup folder contains all files correctly

Status

Build: Successful
Fix: Implemented
Parsing: Corrected
Ready for: Production

This fix resolves:

  • "Source file not found" errors during backup
  • Incorrect paths like level/file.txt instead of file.txt
  • Missing files in backup directories
  • Failed backup operations due to path errors

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