1 files changed, 80 insertions, 0 deletions
diff --git a/packages/meshbay-node/src/meshbay_node/platform.py b/packages/meshbay-node/src/meshbay_node/platform.py
index b59418f..3c160a1 100644
--- a/packages/meshbay-node/src/meshbay_node/platform.py
+++ b/packages/meshbay-node/src/meshbay_node/platform.py
@@ -68,6 +68,86 @@ def state_dir() -> Path:
     return Path.home() / ".local" / "state" / "meshbay"
 
 
+# ── Packaged defaults ────────────────────────────────────────────────────────
+
+
+def packaged_default_env() -> Path | None:
+    """
+    The `default.env` shipped with the package: build-time defaults, currently
+    the shared read-only TMDB token. `init` copies it to config_dir()/node.env
+    and nothing reads it in place, so an operator's edits to their own copy
+    survive an upgrade.
+
+    Frozen (PyInstaller/Windows): beside the executable, where
+    build-node-runtime.ps1 puts it -- the same placement it uses for ffmpeg.
+    Packaged (Linux): /opt/meshbay-node/share/default.env, from build-node.sh.
+    None in a source checkout, where no package wrote one.
+    """
+    candidates = []
+    if getattr(sys, "frozen", False):
+        candidates.append(Path(sys.executable).parent / "default.env")
+    candidates.append(Path("/opt/meshbay-node/share/default.env"))
+    for path in candidates:
+        try:
+            if path.is_file():
+                return path
+        except OSError:
+            continue
+    return None
+
+
+def install_node_env(target_dir: Path) -> Path | None:
+    """
+    Copy the packaged default.env to <target_dir>/node.env, once, at init.
+
+    Never overwrites: an existing node.env holds the operator's own values, and
+    silently replacing a configured token with the packaged one would be worse
+    than doing nothing. Returns the path when written, None when there was
+    nothing to copy or a file was already there.
+    """
+    src = packaged_default_env()
+    if src is None:
+        return None
+    dest = target_dir / "node.env"
+    if dest.exists():
+        return None
+    dest.write_bytes(src.read_bytes())
+    chmod_private(dest)
+    return dest
+
+
+def load_node_env(source_dir: Path) -> int:
+    """
+    Read <source_dir>/node.env into os.environ, returning how many names were
+    set.
+
+    systemd does this on Linux through `EnvironmentFile=`, but the Windows
+    autostart is a Startup-folder .vbs with no equivalent, so the daemon reads
+    the file itself and both platforms behave the same. An existing environment
+    variable always wins -- an operator exporting a value, or systemd having
+    already loaded the same file, overrides the packaged default rather than
+    being overridden by it.
+    """
+    path = source_dir / "node.env"
+    try:
+        text = path.read_text(encoding="utf-8")
+    except (OSError, UnicodeDecodeError):
+        return 0
+    count = 0
+    for line in text.splitlines():
+        line = line.strip()
+        if not line or line.startswith("#") or "=" not in line:
+            continue
+        name, _, value = line.partition("=")
+        name = name.strip()
+        value = value.strip().strip('"').strip("'")
+        if not name or name in os.environ:
+            continue
+        os.environ[name] = value
+        count += 1
+    return count
+
+
 # ── File permissions ─────────────────────────────────────────────────────────