Fix DCE token env var: v2.48 reads DISCORD_TOKEN, not TOKEN (both now set)

dlphelper/discord.py

@@ -48,8 +48,9 @@ class FoundUrl:
 def export_channel(channel_id: str, out_dir: Path, token: str, force: bool = False) -> Path:
     """Export the channel to out_dir/export.json using the DCE docker image.
 
-    The token is passed to the container via the TOKEN env var (DCE reads it
-    natively) so it never appears on the docker command line.
+    The token is passed to the container via the DISCORD_TOKEN env var (DCE
+    reads it natively) so it never appears on the docker command line. TOKEN
+    is set as well for DCE versions that only know that name.
     """
     dest = out_dir / "export.json"
     if dest.exists() and not force:
@@ -58,11 +59,13 @@ def export_channel(channel_id: str, out_dir: Path, token: str, force: bool = Fal
 
     out_dir.mkdir(parents=True, exist_ok=True)
     env = dict(os.environ)
+    env["DISCORD_TOKEN"] = token
     env["TOKEN"] = token
     cmd = [
         "docker", "run", "--rm",
         "--user", f"{os.getuid()}:{os.getgid()}",
         "-v", f"{out_dir.resolve()}:/out",
+        "-e", "DISCORD_TOKEN",
         "-e", "TOKEN",
         DCE_IMAGE,
         "export", "-c", channel_id, "-f", "Json", "-o", "/out/export.json",