joplin-notes/joplin notion extension/linux/Snippets/export file metadata and view it in nice frontend.md

export file metadata and view it in nice frontend

from llm

It sounds like you're looking to create a file explorer with metadata and tree view functionality. Here's a general approach on how you can achieve this, even if you don't have direct access to the files themselves:

Steps to Create a File Explorer with Metadata and Tree View

1. Get the Directory Structure: You can use a recursive function to traverse the directory and collect information about files and folders in a hierarchical structure (like a tree view). The key is to capture all relevant metadata along with each file and folder.

2. Collect Metadata: For each file and folder, you can collect the following metadata:

   • File name
   • File size
   • File type/extension
   • Creation date
   • Last modified date
   • Permissions (Read/Write/Execute)
   • Owner (if available)

3. Export the Data: Once you've gathered all this information, you can export it to a structured format such as JSON or CSV. JSON would be ideal for this, as it can represent hierarchical data.

4. Display with Tree View: You can then build a tree view UI using HTML, JavaScript, and CSS (e.g., using frameworks like React or Vue.js). Each item in the tree can be toggled open or closed to reveal the metadata for files and folders.

Code Example (Python Script to Export Metadata)

Here’s a Python script that will scan a directory and gather the metadata:

import os
import json
from datetime import datetime

def get_file_metadata(file_path):
    stats = os.stat(file_path)
    return {
        "name": os.path.basename(file_path),
        "size": stats.st_size,
        "creation_date": datetime.fromtimestamp(stats.st_ctime).strftime('%Y-%m-%d %H:%M:%S'),
        "modified_date": datetime.fromtimestamp(stats.st_mtime).strftime('%Y-%m-%d %H:%M:%S'),
        "permissions": oct(stats.st_mode)[-3:],
        "is_directory": os.path.isdir(file_path)
    }

def build_tree(directory):
    directory_tree = []
    for root, dirs, files in os.walk(directory):
        root_metadata = get_file_metadata(root)
        tree_item = {
            "path": root,
            "metadata": root_metadata,
            "files": [],
            "subfolders": []
        }
        
        # Get files in the current folder
        for file in files:
            file_path = os.path.join(root, file)
            file_metadata = get_file_metadata(file_path)
            tree_item["files"].append(file_metadata)
        
        # Get subfolders (recursive)
        for dir in dirs:
            dir_path = os.path.join(root, dir)
            dir_metadata = get_file_metadata(dir_path)
            tree_item["subfolders"].append(build_tree(dir_path)[0])  # Recursively add subfolders
            
        directory_tree.append(tree_item)
    return directory_tree

def save_to_json(data, filename="directory_structure.json"):
    with open(filename, "w") as f:
        json.dump(data, f, indent=4)

# Example usage
directory = "/path/to/your/directory"  # Change this to your directory
tree_data = build_tree(directory)
save_to_json(tree_data)

Explanation:

1. get_file_metadata: This function collects metadata for a file or folder (like creation and modification dates, size, permissions, etc.).
2. build_tree: This function uses os.walk() to traverse the directory and construct a tree with file metadata and subdirectories.
3. save_to_json: This function saves the gathered data in a JSON file.

or bash script can be used too

#!/bin/bash

# Usage: ./dir_tree.sh /path/to/directory > output.json

DIR=${1:-.}

echo "["

first=1
find "$DIR" -print0 | while IFS= read -r -d '' file; do
    [ $first -eq 0 ] && echo ","
    first=0

    name=$(basename "$file")
    size=$(stat -c %s "$file")
    created=$(stat -c %w "$file") # May be '-' on some systems
    modified=$(stat -c %y "$file")
    perms=$(stat -c %a "$file")
    is_dir=false
    [ -d "$file" ] && is_dir=true

    # Output as JSON object
    echo "  {"
    echo "    \"path\": \"${file//\"/\\\"}\","
    echo "    \"name\": \"${name//\"/\\\"}\","
    echo "    \"size\": $size,"
    echo "    \"creation_date\": \"${created//\"/\\\"}\","
    echo "    \"modified_date\": \"${modified//\"/\\\"}\","
    echo "    \"permissions\": \"$perms\","
    echo "    \"is_directory\": $is_dir"
    echo -n "  }"
done

echo
echo "]"
tar

Frontend: Displaying the Tree View

You can use HTML, CSS, and JavaScript to display the file structure and metadata in a tree view. If you're familiar with React, it's even easier.

Here’s an example of how you can structure the tree view with HTML:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>File Explorer</title>
  <style>
    .folder { font-weight: bold; cursor: pointer; }
    .file { font-style: italic; }
    .metadata { margin-left: 20px; }
    .hidden { display: none; }
  </style>
</head>
<body>

<div id="tree-view"></div>

<script>
// Sample JSON data (replace with your actual JSON from the Python script)
const treeData = [
  {
    "path": "/path/to/folder",
    "metadata": {
      "name": "folder",
      "size": 1234,
      "creation_date": "2025-05-08 14:30:00",
      "modified_date": "2025-05-08 14:45:00",
      "permissions": "755",
      "is_directory": true
    },
    "files": [
      {
        "name": "file1.txt",
        "size": 200,
        "creation_date": "2025-05-08 14:30:00",
        "modified_date": "2025-05-08 14:40:00",
        "permissions": "644",
        "is_directory": false
      }
    ],
    "subfolders": []
  }
];

function createTreeView(data, parentElement) {
  data.forEach(item => {
    const folderDiv = document.createElement("div");
    folderDiv.classList.add("folder");
    folderDiv.textContent = item.metadata.name;
    folderDiv.onclick = () => toggleFolder(folderDiv, item);

    const metadataDiv = document.createElement("div");
    metadataDiv.classList.add("metadata", "hidden");
    metadataDiv.innerHTML = `
      <p>Size: ${item.metadata.size} bytes</p>
      <p>Created: ${item.metadata.creation_date}</p>
      <p>Modified: ${item.metadata.modified_date}</p>
      <p>Permissions: ${item.metadata.permissions}</p>
    `;
    
    folderDiv.appendChild(metadataDiv);
    parentElement.appendChild(folderDiv);

    // Recursively add files and subfolders
    if (item.files.length > 0 || item.subfolders.length > 0) {
      const subFolderDiv = document.createElement("div");
      subFolderDiv.classList.add("subfolder");

      item.files.forEach(file => {
        const fileDiv = document.createElement("div");
        fileDiv.classList.add("file");
        fileDiv.textContent = file.name;
        subFolderDiv.appendChild(fileDiv);
      });

      item.subfolders.forEach(subfolder => {
        createTreeView([subfolder], subFolderDiv);
      });

      folderDiv.appendChild(subFolderDiv);
    }
  });
}

function toggleFolder(folderDiv, item) {
  const metadataDiv = folderDiv.querySelector(".metadata");
  metadataDiv.classList.toggle("hidden");
}

createTreeView(treeData, document.getElementById("tree-view"));
</script>

</body>
</html>

Steps to Implement:

1. Data Fetching: You will need to load your JSON file (from the Python script) into the front-end application. This can be done using a simple fetch() call or by directly embedding the JSON data.
2. Displaying Metadata: Each folder and file item can display its name and, when clicked, show the metadata (size, creation date, etc.).
3. Tree View Toggle: The metadata will be hidden by default and only visible when the folder is toggled.

Conclusion:

By following this method, you can gather all file and folder metadata, export it as JSON, and then visualize the data in a tree structure with toggling effects on the front end. This would allow you to review file and folder properties without direct access to the actual files.