Added support for less verbose version information (#7169)

Author: debugduck

AUTHORS

@@ -63,6 +63,7 @@ Christian Tismer
 Christoph Buelter
 Christopher Dignam
 Christopher Gilling
+Claire Cecil
 Claudio Madotto
 CrazyMerlyn
 Cyrus Maden

changelog/7128.improvement.rst

@@ -0,0 +1 @@
+`pytest --version` now displays just the pytest version, while `pytest --version --version` displays more verbose information including plugins.

src/_pytest/helpconfig.py

@@ -41,8 +41,11 @@ def pytest_addoption(parser):
     group.addoption(
         "--version",
         "-V",
-        action="store_true",
-        help="display pytest version and information about plugins.",
+        action="count",
+        default=0,
+        dest="version",
+        help="display pytest version and information about plugins."
+        "When given twice, also display information about plugins.",
     )
     group._addoption(
         "-h",
@@ -116,19 +119,22 @@ def unset_tracing():
 
 
 def showversion(config):
-    sys.stderr.write(
-        "This is pytest version {}, imported from {}\n".format(
-            pytest.__version__, pytest.__file__
+    if config.option.version > 1:
+        sys.stderr.write(
+            "This is pytest version {}, imported from {}\n".format(
+                pytest.__version__, pytest.__file__
+            )
         )
-    )
-    plugininfo = getpluginversioninfo(config)
-    if plugininfo:
-        for line in plugininfo:
-            sys.stderr.write(line + "\n")
+        plugininfo = getpluginversioninfo(config)
+        if plugininfo:
+            for line in plugininfo:
+                sys.stderr.write(line + "\n")
+    else:
+        sys.stderr.write("pytest {}\n".format(pytest.__version__))
 
 
 def pytest_cmdline_main(config):
-    if config.option.version:
+    if config.option.version > 0:
         showversion(config)
         return 0
     elif config.option.help:

testing/test_config.py

@@ -1243,9 +1243,7 @@ def pytest_addoption(parser):
     assert result.ret == ExitCode.USAGE_ERROR
 
     result = testdir.runpytest("--version")
-    result.stderr.fnmatch_lines(
-        ["*pytest*{}*imported from*".format(pytest.__version__)]
-    )
+    result.stderr.fnmatch_lines(["pytest {}".format(pytest.__version__)])
     assert result.ret == ExitCode.USAGE_ERROR
 
 

testing/test_helpconfig.py

@@ -2,18 +2,25 @@
 from _pytest.config import ExitCode
 
 
-def test_version(testdir, pytestconfig):
+def test_version_verbose(testdir, pytestconfig):
     testdir.monkeypatch.delenv("PYTEST_DISABLE_PLUGIN_AUTOLOAD")
-    result = testdir.runpytest("--version")
+    result = testdir.runpytest("--version", "--version")
     assert result.ret == 0
-    # p = py.path.local(py.__file__).dirpath()
     result.stderr.fnmatch_lines(
         ["*pytest*{}*imported from*".format(pytest.__version__)]
     )
     if pytestconfig.pluginmanager.list_plugin_distinfo():
         result.stderr.fnmatch_lines(["*setuptools registered plugins:", "*at*"])
 
 
+def test_version_less_verbose(testdir, pytestconfig):
+    testdir.monkeypatch.delenv("PYTEST_DISABLE_PLUGIN_AUTOLOAD")
+    result = testdir.runpytest("--version")
+    assert result.ret == 0
+    # p = py.path.local(py.__file__).dirpath()
+    result.stderr.fnmatch_lines(["pytest {}".format(pytest.__version__)])
+
+
 def test_help(testdir):
     result = testdir.runpytest("--help")
     assert result.ret == 0