Add covimerage-run console script

This is required/useful for when a single command is required to wrap
Vim, e.g. with vim-thesis.

covimerage/cli.py

@@ -10,12 +10,14 @@
 from .logger import logger
 from .utils import build_vim_profile_args, join_argv
 
+context_settings = {'help_option_names': ['-h', '--help']}
+
 
 def default_loglevel():
     return logging.getLevelName(logger.level).lower()
 
 
-@click.group(context_settings={'help_option_names': ['-h', '--help']})
+@click.group(context_settings=context_settings)
 @click.version_option(get_version(), '-V', '--version', prog_name='covimerage')
 @click.option('-v', '--verbose', count=True, help='Increase verbosity.')
 @click.option('-q', '--quiet', count=True, help='Decrease verbosity.')
@@ -63,6 +65,7 @@ def write_coverage(profile_file, data_file, source, append):
 
 
 @main.command(context_settings=dict(
+    context_settings,
     # ignore_unknown_options=True,
     allow_interspersed_args=False,
 ))

setup.py

@@ -73,7 +73,10 @@ def run(self):
     url='https://github.com/Vimjas/covimerage',
     packages=['covimerage'],
     entry_points={
-        'console_scripts': ['covimerage=covimerage.cli:main'],
+        'console_scripts': [
+            'covimerage=covimerage.cli:main',
+            'covimerage-run=covimerage.cli:run',
+        ],
     },
     use_scm_version={
         'write_to': 'covimerage/__version__.py',

tests/test_cli.py

@@ -61,6 +61,12 @@ def test_cli_help(arg, runner):
     assert result.exit_code == 0
 
 
+def test_cli_run_shorthelp(runner):
+    result = runner.invoke(cli.run, ['-h'])
+    assert result.output.startswith('Usage:')
+    assert result.exit_code == 0
+
+
 def test_cli_run_with_args_fd(capfd):
     ret = call(['covimerage', 'run', '--profile-file', '/doesnotexist',
                 'echo', '--', '--no-profile', '%sMARKER'])