From 1ad022a616fb7232e19eb0bae508bffd332082d4 Mon Sep 17 00:00:00 2001
From: Daniel Mach <daniel.mach@suse.com>
Date: Tue, 9 May 2023 21:45:20 +0200
Subject: [PATCH] Fix 'diff' command when no files are specified

---
 osc/commandline.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/osc/commandline.py b/osc/commandline.py
index 522c26ea..adba1711 100644
--- a/osc/commandline.py
+++ b/osc/commandline.py
@@ -4646,7 +4646,12 @@ Please submit there instead, or use --nodevelproject to force direct submission.
                 for i in pac.get_diff(rev1):
                     diff += b''.join(i)
             else:
-                files = args
+                if args == ["."]:
+                    # parseargs() returns ["."] (list with workdir) if no args are specified
+                    # "." is illegal filename that causes server to return 400
+                    files = None
+                else:
+                    files = args
                 diff += server_diff_noex(pac.apiurl, pac.prjname, pac.name, rev1,
                                          pac.prjname, pac.name, rev2,
                                          not opts.plain, opts.missingok, opts.meta, not opts.unexpand, files=files)