Consolidate portable MCPs in Unraid MCPHub

platform/mcphub/run-with-env.py

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+#!/usr/bin/env python3
+"""Run a command with one or more Docker-style env files.
+
+Values are parsed literally rather than sourced by a shell.  Tokens containing
+`$`, `#`, spaces or shell metacharacters therefore remain unchanged.
+"""
+
+from __future__ import annotations
+
+import os
+import pathlib
+import sys
+
+
+def load_env(path: pathlib.Path) -> None:
+    if not path.is_file():
+        raise SystemExit(f"secret environment file is missing: {path}")
+    for raw in path.read_text(encoding="utf-8").splitlines():
+        line = raw.strip()
+        if not line or line.startswith("#"):
+            continue
+        if line.startswith("export "):
+            line = line[7:].lstrip()
+        if "=" not in line:
+            raise SystemExit(f"invalid environment line in {path}: {raw!r}")
+        key, value = line.split("=", 1)
+        key = key.strip()
+        if not key or not key.replace("_", "A").isalnum() or key[0].isdigit():
+            raise SystemExit(f"invalid environment variable in {path}: {key!r}")
+        value = value.strip()
+        if len(value) >= 2 and value[0] == value[-1] and value[0] in "\"'":
+            value = value[1:-1]
+        os.environ[key] = value
+
+
+def main() -> None:
+    if len(sys.argv) < 3:
+        raise SystemExit("usage: run-with-env ENV_FILE [ENV_FILE ...] -- COMMAND [ARG ...]")
+    try:
+        separator = sys.argv.index("--")
+    except ValueError as exc:
+        raise SystemExit("missing -- before command") from exc
+    env_files = [pathlib.Path(item) for item in sys.argv[1:separator]]
+    command = sys.argv[separator + 1 :]
+    if not env_files or not command:
+        raise SystemExit("at least one env file and a command are required")
+    for env_file in env_files:
+        load_env(env_file)
+    os.execvp(command[0], command)
+
+
+if __name__ == "__main__":
+    main()