added additional functions

list_hosts.py

@@ -4,14 +4,11 @@ import os
 import glob
 import socket
 import asyncio
+import ipaddress
 from tabulate import tabulate
 from collections import OrderedDict
 
 from .utils import print_warning, print_error, Colors
-"""
-This file is responsible for listing all SSH hosts discovered in ~/.ssh/conf/<label>/config.
-We've modified it to show a "Conf Directory" column instead of "IdentityFile."
-"""
 
 async def check_ssh_port(ip_address, port):
     """
@@ -45,9 +42,11 @@ def load_config_file(file_path):
 
     for line in lines:
         stripped_line = line.strip()
+        # Skip empty lines and comments
         if not stripped_line or stripped_line.startswith('#'):
             continue
 
+        # Start of a new Host block
         if stripped_line.lower().startswith('host '):
             host_labels = stripped_line.split()[1:]
             for label in host_labels:
@@ -68,13 +67,14 @@ def load_config_file(file_path):
 async def check_host(host):
     """
     Given a host block, resolve IP, check SSH port, etc.
-    Returns a row for tabulate containing:
+    Returns a tuple of:
       1) Host label
       2) User
-      3) Port (color-coded if open)
+      3) Port (colored if open)
       4) HostName
-      5) IP Address (color-coded if resolved)
+      5) IP Address (colored if resolved)
       6) Conf Directory (green if has IdentityFile, else no color)
+      7) raw_ip (uncolored string for sorting)
     """
     host_label    = host.get('Host', 'N/A')
     hostname      = host.get('HostName', 'N/A')
@@ -84,44 +84,44 @@ async def check_host(host):
 
     # Resolve IP
     try:
-        ip_address = socket.gethostbyname(hostname)
-        colored_ip = f"{Colors.GREEN}{ip_address}{Colors.RESET}"
+        raw_ip = socket.gethostbyname(hostname)  # uncolored
+        colored_ip = f"{Colors.GREEN}{raw_ip}{Colors.RESET}"
     except socket.error:
-        ip_address = None
+        raw_ip = "N/A"
         colored_ip = f"{Colors.RED}N/A{Colors.RESET}"
 
     # Check port
-    if ip_address:
-        port_open = await check_ssh_port(ip_address, port)
+    if raw_ip != "N/A":
+        port_open = await check_ssh_port(raw_ip, port)
         colored_port = (
-            f"{Colors.GREEN}{port}{Colors.RESET}"
-            if port_open
-            else f"{Colors.RED}{port}{Colors.RESET}"
+            f"{Colors.GREEN}{port}{Colors.RESET}" if port_open else f"{Colors.RED}{port}{Colors.RESET}"
         )
     else:
         colored_port = f"{Colors.RED}{port}{Colors.RESET}"
 
     # Conf Directory = ~/.ssh/conf/<host_label>
     conf_path = f"~/.ssh/conf/{host_label}"
-    # If there's an IdentityFile, we color this path green
+    # If there's an IdentityFile, color the conf path green
     if identity_file != 'N/A':
         conf_path_display = f"{Colors.GREEN}{conf_path}{Colors.RESET}"
     else:
         conf_path_display = conf_path
 
-    return [
+    # Return the data plus the uncolored IP for sorting
+    return (
         host_label,
         user,
         colored_port,
         hostname,
         colored_ip,
-        conf_path_display
-    ]
+        conf_path_display,
+        raw_ip  # for sorting
+    )
 
 async def list_hosts(conf_dir):
     """
-    List out all hosts found in ~/.ssh/conf/*/config.
-    Shows columns: No., Host, User, Port, HostName, IP Address, Conf Directory
+    List out all hosts found in ~/.ssh/conf/*/config, sorted by IP in ascending order.
+    Columns: No., Host, User, Port, HostName, IP Address, Conf Directory
     """
     pattern    = os.path.join(conf_dir, "*", "config")
     conf_files = sorted(glob.glob(pattern))
@@ -131,7 +131,6 @@ async def list_hosts(conf_dir):
         blocks = load_config_file(conf_file)
         all_host_blocks.extend(blocks)
 
-    # Prepare table
     headers = ["No.", "Host", "User", "Port", "HostName", "IP Address", "Conf Directory"]
     if not all_host_blocks:
         print_warning("No hosts found. The server list is empty.")
@@ -139,9 +138,37 @@ async def list_hosts(conf_dir):
         print(tabulate([], headers=headers, tablefmt="grid"))
         return
 
+    # Gather full data for each host
     tasks   = [check_host(h) for h in all_host_blocks]
     results = await asyncio.gather(*tasks)
 
-    table = [[idx + 1] + row for idx, row in enumerate(results)]
-    print("\nSSH Conf Subdirectory Host List")
-    print(tabulate(table, headers=headers, tablefmt="grid"))
+    # We want to sort by IP ascending. results[i] is a tuple:
+    # (host_label, user, colored_port, hostname, colored_ip, conf_path, raw_ip)
+    # We'll parse raw_ip as an ipaddress for sorting. "N/A" => sort to the end.
+    def parse_ip(ip_str):
+        try:
+            return ipaddress.ip_address(ip_str)
+        except ValueError:
+            return None
+
+    # Convert the results into a list of (ip_obj, original_tuple)
+    # so we can sort, then rebuild the final data.
+    sortable = []
+    for row in results:
+        raw_ip = row[-1]  # last element
+        ip_obj = parse_ip(raw_ip)
+        # We'll sort None last by using a sort key that puts (True) after (False)
+        # e.g. (ip_obj is None, ip_obj)
+        sortable.append(((ip_obj is None, ip_obj), row))
+
+    # Sort by (is_none, ip_obj)
+    sortable.sort(key=lambda x: x[0])
+
+    # Rebuild the final display table, ignoring the raw_ip at the end
+    final_data = []
+    for idx, (_, row) in enumerate(sortable, start=1):
+        # row is (host_label, user, colored_port, hostname, colored_ip, conf_path, raw_ip)
+        final_data.append([idx] + list(row[:-1]))  # omit raw_ip
+
+    print("\nSSH Conf Subdirectory Host List (Sorted by IP Ascending)")
+    print(tabulate(final_data, headers=headers, tablefmt="grid"))