Use gethostname instead of potentially slow getfqdn (#2380)

Author: ssbarnea

docs/changelog/2375.bugfix.rst

@@ -0,0 +1 @@
+Avoid potential 30s delay caused by socket.getfqdn(). -- by :user:`ssbarnea`

src/tox/logs/result.py

@@ -22,7 +22,7 @@ def __init__(self):
             "reportversion": "1",
             "toxversion": __version__,
             "platform": sys.platform,
-            "host": os.getenv(str("HOSTNAME")) or socket.getfqdn(),
+            "host": os.getenv(str("HOSTNAME")) or socket.gethostname(),
             "commands": command_log,
         }
 

tests/unit/test_result.py

@@ -31,7 +31,7 @@ def test_pre_set_header(clean_hostname_envvar):
     assert replog.dict["reportversion"] == "1"
     assert replog.dict["toxversion"] == tox.__version__
     assert replog.dict["platform"] == sys.platform
-    assert replog.dict["host"] == socket.getfqdn()
+    assert replog.dict["host"] == socket.gethostname()
     data = replog.dumps_json()
     replog2 = ResultLog.from_json(data)
     assert replog2.dict == replog.dict
@@ -44,7 +44,7 @@ def test_set_header(pkg, clean_hostname_envvar):
     assert replog.dict["reportversion"] == "1"
     assert replog.dict["toxversion"] == tox.__version__
     assert replog.dict["platform"] == sys.platform
-    assert replog.dict["host"] == socket.getfqdn()
+    assert replog.dict["host"] == socket.gethostname()
     expected = {"basename": "hello-1.0.tar.gz", "sha256": pkg.computehash("sha256")}
     env_log = replog.get_envlog("a")
     env_log.set_header(installpkg=pkg)