Generate Windows Terminal profiles for each host in your SSH config

gen-ssh-profiles.py

#!/usr/bin/env python

# Warning: this script can't work with the Microsoft Store version of Python,
# since that version can't write to %LOCALAPPDATA%
# cf: https://github.com/python/cpython/issues/122057

import os
import uuid
import json
import urllib.request

import paramiko
# Watch out for https://github.com/paramiko/paramiko/pull/1991

# Parse OpenSSH config file
cfg = paramiko.SSHConfig.from_path(os.path.join(os.environ['USERPROFILE'], os.path.normpath(".ssh/config")))
# Filter out wildcards and negated patterns
hosts = [h for h in cfg.get_hostnames() if '*' not in h and '!' not in h]

# The Windows Terminal namespace GUID for custom profiles & fragments
terminalNamespaceGUID = uuid.UUID("{f65ddb7e-706b-4499-8a50-40313caf510a}")
# The Application Namespace GUID
appName = "OpenSSH_for_Windows"
appNamespaceGUID = uuid.uuid5(terminalNamespaceGUID, appName.encode("UTF-16LE").decode("ASCII"))

# Create the fragments directory
fragmentsDir = os.path.join(os.environ['LOCALAPPDATA'], os.path.normpath("Microsoft/Windows Terminal/Fragments/" + appName)) 
os.makedirs(fragmentsDir, exist_ok=True)

# Download the OpenSSH logo
openSSHGitHubOrgID = "2387206"
iconPath =  os.path.join(fragmentsDir, "openssh.png")
urllib.request.urlretrieve("https://avatars.githubusercontent.com/u/" + openSSHGitHubOrgID, iconPath)

profiles = []
fragment = {}
fragment["profiles"] = profiles

for host in hosts:
    # Calculate the GUID for this profile
    profileGUID = uuid.uuid5(appNamespaceGUID, host.encode("UTF-16LE").decode("ASCII"))
    profile = {"guid": f"{{{profileGUID}}}"}
    profile["name"] = "SSH " + host
    # TODO: hack powershell's history (if possible) so that up arrow yields 'ssh host' 
    # In the meantime: add the content in 'profile.ps1' (below) to your PowerShell profile
    profile["commandline"] = f"powershell -NoExit -Command \"ssh {host}\""
    profile["startingDirectory"] = "%USERPROFILE%"
    profile["icon"] = iconPath
    fragment["profiles"].append(profile)

fragmentFile = os.path.join(fragmentsDir, "profiles.json")
with open(fragmentFile, 'w') as f:
    json.dump(fragment, f, indent=4)

profile.ps1

# Add custom key binding to access built-in Powershell history (not PSReadLine's)
$parameters = @{
    key = 'ctrl+uparrow'
    briefdescription = 'PreviousBuiltinHistory'
    longdescription = 'Replace entry with previous builtin history entry'
    scriptblock = {
      param($key, $arg)   # the arguments are ignored in this example

      # Get previous builtin history entry
      $hist = Get-History
      $previous = $hist[-1].commandline
      # Insert it
      $line = $null
      $cursor = $null
      [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState([ref]$line, [ref]$cursor)
      [Microsoft.PowerShell.PSConsoleReadLine]::Replace(0, $line.length, $previous)
    }
}
Set-PSReadLineKeyHandler @parameters

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