src/disk_checker/core/drive_scanner.py

@@ -0,0 +1,127 @@
+"""Drive detection module for disk-checker."""
+
+import json
+import subprocess
+from typing import Dict, List
+from dataclasses import dataclass
+from pathlib import Path
+
+
+@dataclass
+class DriveInfo:
+    """Information about a block device."""
+    name: str           # e.g., "sda", "sdb"
+    path: str           # e.g., "/dev/sda"
+    size: str           # e.g., "232.9G"
+    model: str          # e.g., "CT250MX500SSD1"
+    type: str           # e.g., "disk", "part"
+    mounted: bool       # True if currently mounted
+    mount_point: str = ""  # e.g., "/", "/home"
+    serial: str = ""    # e.g., "2131G5F25137"
+
+
+def get_mounted_devices() -> set:
+    """
+    Get set of mounted device paths.
+    
+    Returns:
+        Set of device paths that are currently mounted
+    """
+    mounted = set()
+    
+    # Method 1: Parse lsblk with mount points
+    try:
+        result = subprocess.run(
+            ["lsblk", "-J", "-o", "NAME,MOUNTPOINT"],
+            capture_output=True,
+            text=True,
+            check=True
+        )
+        data = json.loads(result.stdout)
+        for device in data.get("blockdevices", []):
+            mountpoint = device.get("mountpoint")
+            if mountpoint:
+                # Add both full path and device name
+                mounted.add(f"/dev/{device['name']}")
+                mounted.add(device["name"])
+    except (subprocess.CalledProcessError, json.JSONDecodeError):
+        print("lsblk failed to retrieve mounted devices information")
+        pass
+    
+    # Method 2: Parse /proc/mounts
+    try:
+        with open("/proc/mounts", "r") as f:
+            for line in f:
+                parts = line.split()
+                if len(parts) >= 2 and parts[0].startswith("/dev/"):
+                    mounted.add(parts[0])
+                    # Also add device name without /dev/
+                    mounted.add(parts[0].replace("/dev/", ""))
+    except (FileNotFoundError, IOError):
+        print("/proc/mounts failed to retrieve mounted devices information")
+        pass
+    
+    return mounted
+
+
+def scan_drives() -> List[DriveInfo]:
+    """
+    Scan host system for available block devices.
+    
+    Returns:
+        List of DriveInfo objects for physical disks
+    """
+    mounted_devices = get_mounted_devices()
+    drives = []
+    
+    try:
+        # Get block devices with lsblk
+        result = subprocess.run(
+            [
+                "lsblk",
+                "-J",           # JSON output
+                "-d",           # Only disks (not partitions)
+                "-b",           # Show size in bytes
+                "-o", "NAME,SIZE,TYPE,MODEL,Serial,MOUNTPOINT"
+            ],
+            capture_output=True,
+            text=True,
+            check=True
+        )
+        
+        data = json.loads(result.stdout)
+        
+        for device in data.get("blockdevices", []):
+            # Only include physical disks
+            if device.get("type") != "disk":
+                continue
+            
+            name = device.get("name", "")
+            path = f"/dev/{name}"
+            
+            # Check if mounted
+            is_mounted = path in mounted_devices or name in mounted_devices
+            
+            drive = DriveInfo(
+                name=name,
+                path=path,
+                size=device.get("size", "Unknown"),
+                model=device.get("model") or "",
+                type="disk",
+                mounted=is_mounted,
+                mount_point=device.get("mountpoint", ""),
+                serial=device.get("serial") or ""
+            )
+            drives.append(drive)
+            
+    except subprocess.CalledProcessError as e:
+        # If lsblk fails, return empty list
+        print("lsblk failed to parse drives data")
+        print(e)
+        pass
+    except json.JSONDecodeError as e:
+        print("json decoder error")
+        print(e)
+        pass
+    
+    return drives

src/disk_checker/web/routes.py

@@ -3,6 +3,7 @@
 from fastapi import APIRouter, Request
 
 from disk_checker.core.tool_scanner import ToolInfo
+from disk_checker.core.drive_scanner import DriveInfo, scan_drives
 
 api_router = APIRouter()
 
@@ -20,3 +21,25 @@ async def get_available_tools(request: Request):
         }
         for tool_name, tool in tools.items()
     }
+
+@api_router.get("/drives")
+async def get_available_drives(request: Request):
+    """
+    Get list of available block devices
+    Mounted drives are marked as unavailable
+    """
+    drives = scan_drives()
+    return {
+        "drives": [
+            {
+                "name": drive.name,
+                "path": drive.path,
+                "size": drive.size,
+                "model": drive.model,
+                "mounted": drive.mounted,
+                "mount_point": drive.mount_point,
+                "serial": drive.serial
+            }
+            for drive in drives
+        ]
+    }

static/css/style.css

@@ -15,3 +15,31 @@
 .badge {
     font-size: 0.9rem;
 }
+
+/* Drive cards styling */
+.drive-card {
+    transition: all 0.3s ease;
+}
+
+.drive-card.available {
+    border-left: 4px solid #28a745;
+}
+
+.drive-card.disabled {
+    border-left: 4px solid #6c757d;
+    opacity: 0.7;
+}
+
+.drive-card:hover:not(.disabled) {
+    transform: translateY(-2px);
+    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
+}
+
+/* Make disabled cards look unavailable */
+.drive-card.disabled .card-title {
+    color: #6c757d;
+}
+
+.drive-card.disabled .card-text {
+    color: #6c757d;
+}

templates/base.html

@@ -16,9 +16,9 @@
         </div>
     </nav>
    
-    <!--Available tools block, tools are loaded automatically-->
     <div class="container">
         {% block content %}{% endblock %}
+        {% block extra_js %}{% endblock %}
     </div>
     
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>

templates/index.html

@@ -2,6 +2,8 @@
 
 {% block content %}
 <div class="container mt-4">
+
+    <!--Available tools section-->
     <h2>Available Benchmarking Tools</h2>
 
     <!-- Server-side rendered tools -->
@@ -29,6 +31,63 @@
     </div>
     {% endif %}
 
-    <div id="tools-content"></div>
+    <!--Available drives section-->
+    <h2 class="mt-5">Available Drives</h2>
+    <p class="text-muted">
+        <i class="bi bi-info-circle"></i>
+        Mounted drives are grayed out and cannot be benchmarked.
+    </p>
+    <div id="drives-list" hx-get="/api/v1/drives" hx-trigger="load" hx-target="#drives-content"></div>
+    <div id="drives-content" class="row"></div>
 </div>
 {% endblock %}
+
+{% block extra_js %}
+<script>
+    // HTMX event to render drives after loading
+    document.addEventListener('htmx:afterRequest', function (evt) {
+        if (evt.detail.target.id === 'drives-content') {
+            renderDrives(JSON.parse(evt.detail.xhr.response));
+        }
+    });
+
+    function renderDrives(data) {
+        const container = document.getElementById('drives-content');
+        container.innerHTML = '';
+
+        if (!data.drives || data.drives.length === 0) {
+            container.innerHTML = '<div class="col-12"><p class="text-muted">No drives found.</p></div>';
+            return;
+        }
+
+        data.drives.forEach(drive => {
+            const col = document.createElement('div');
+            col.className = 'col-md-4 mb-3';
+
+            const card = document.createElement('div');
+            card.className = `drive-card ${drive.mounted ? 'disabled' : 'available'}`;
+
+            card.innerHTML = `
+                <div class="card-body">
+                    <h5 class="card-title">${drive.name}</h5>
+                    <p class="card-text">
+                        <strong>Size:</strong> ${drive.size}<br>
+                        <strong>Model:</strong> ${drive.model || 'Unknown'}<br>
+                        ${drive.serial ? `<strong>Serial:</strong> ${drive.serial}<br>` : ''}
+                        ${drive.mount_point ? `<strong>Mounted at:</strong> ${drive.mount_point}<br>` : ''}
+                    </p>
+                    <div>
+                        ${drive.mounted
+                    ? '<span class="badge bg-secondary">Mounted - Unavailable</span>'
+                    : '<span class="badge bg-success">Available for Benchmark</span>'
+                }
+                    </div>
+                </div>
+            `;
+
+            col.appendChild(card);
+            container.appendChild(col);
+        });
+    }
+</script>
+{% endblock %}