1 files changed, 139 insertions, 0 deletions
diff --git a/python/pytest/_pytest/helpconfig.py b/python/pytest/_pytest/helpconfig.py
new file mode 100644
index 000000000..1df0c56ac
--- /dev/null
+++ b/python/pytest/_pytest/helpconfig.py
@@ -0,0 +1,139 @@
+""" version info, help messages, tracing configuration.  """
+import py
+import pytest
+import os, sys
+
+def pytest_addoption(parser):
+    group = parser.getgroup('debugconfig')
+    group.addoption('--version', action="store_true",
+            help="display pytest lib version and import information.")
+    group._addoption("-h", "--help", action="store_true", dest="help",
+            help="show help message and configuration info")
+    group._addoption('-p', action="append", dest="plugins", default = [],
+               metavar="name",
+               help="early-load given plugin (multi-allowed). "
+                    "To avoid loading of plugins, use the `no:` prefix, e.g. "
+                    "`no:doctest`.")
+    group.addoption('--traceconfig', '--trace-config',
+               action="store_true", default=False,
+               help="trace considerations of conftest.py files."),
+    group.addoption('--debug',
+               action="store_true", dest="debug", default=False,
+               help="store internal tracing debug information in 'pytestdebug.log'.")
+
+
+@pytest.hookimpl(hookwrapper=True)
+def pytest_cmdline_parse():
+    outcome = yield
+    config = outcome.get_result()
+    if config.option.debug:
+        path = os.path.abspath("pytestdebug.log")
+        debugfile = open(path, 'w')
+        debugfile.write("versions pytest-%s, py-%s, "
+                "python-%s\ncwd=%s\nargs=%s\n\n" %(
+            pytest.__version__, py.__version__,
+            ".".join(map(str, sys.version_info)),
+            os.getcwd(), config._origargs))
+        config.trace.root.setwriter(debugfile.write)
+        undo_tracing = config.pluginmanager.enable_tracing()
+        sys.stderr.write("writing pytestdebug information to %s\n" % path)
+        def unset_tracing():
+            debugfile.close()
+            sys.stderr.write("wrote pytestdebug information to %s\n" %
+                             debugfile.name)
+            config.trace.root.setwriter(None)
+            undo_tracing()
+        config.add_cleanup(unset_tracing)
+
+def pytest_cmdline_main(config):
+    if config.option.version:
+        p = py.path.local(pytest.__file__)
+        sys.stderr.write("This is pytest version %s, imported from %s\n" %
+            (pytest.__version__, p))
+        plugininfo = getpluginversioninfo(config)
+        if plugininfo:
+            for line in plugininfo:
+                sys.stderr.write(line + "\n")
+        return 0
+    elif config.option.help:
+        config._do_configure()
+        showhelp(config)
+        config._ensure_unconfigure()
+        return 0
+
+def showhelp(config):
+    reporter = config.pluginmanager.get_plugin('terminalreporter')
+    tw = reporter._tw
+    tw.write(config._parser.optparser.format_help())
+    tw.line()
+    tw.line()
+    #tw.sep( "=", "config file settings")
+    tw.line("[pytest] ini-options in the next "
+            "pytest.ini|tox.ini|setup.cfg file:")
+    tw.line()
+
+    for name in config._parser._ininames:
+        help, type, default = config._parser._inidict[name]
+        if type is None:
+            type = "string"
+        spec = "%s (%s)" % (name, type)
+        line = "  %-24s %s" %(spec, help)
+        tw.line(line[:tw.fullwidth])
+
+    tw.line()
+    tw.line("environment variables:")
+    vars = [
+        ("PYTEST_ADDOPTS", "extra command line options"),
+        ("PYTEST_PLUGINS", "comma-separated plugins to load during startup"),
+        ("PYTEST_DEBUG", "set to enable debug tracing of pytest's internals")
+    ]
+    for name, help in vars:
+        tw.line("  %-24s %s" % (name, help))
+    tw.line()
+    tw.line()
+
+    tw.line("to see available markers type: py.test --markers")
+    tw.line("to see available fixtures type: py.test --fixtures")
+    tw.line("(shown according to specified file_or_dir or current dir "
+            "if not specified)")
+
+    for warningreport in reporter.stats.get('warnings', []):
+        tw.line("warning : " + warningreport.message, red=True)
+    return
+
+
+conftest_options = [
+    ('pytest_plugins', 'list of plugin names to load'),
+]
+
+def getpluginversioninfo(config):
+    lines = []
+    plugininfo = config.pluginmanager.list_plugin_distinfo()
+    if plugininfo:
+        lines.append("setuptools registered plugins:")
+        for plugin, dist in plugininfo:
+            loc = getattr(plugin, '__file__', repr(plugin))
+            content = "%s-%s at %s" % (dist.project_name, dist.version, loc)
+            lines.append("  " + content)
+    return lines
+
+def pytest_report_header(config):
+    lines = []
+    if config.option.debug or config.option.traceconfig:
+        lines.append("using: pytest-%s pylib-%s" %
+            (pytest.__version__,py.__version__))
+
+        verinfo = getpluginversioninfo(config)
+        if verinfo:
+            lines.extend(verinfo)
+
+    if config.option.traceconfig:
+        lines.append("active plugins:")
+        items = config.pluginmanager.list_name_plugin()
+        for name, plugin in items:
+            if hasattr(plugin, '__file__'):
+                r = plugin.__file__
+            else:
+                r = repr(plugin)
+            lines.append("    %-20s: %s" %(name, r))
+    return lines