def main(args=None):
"""
Used by the pywatch script to handle command-line
args.
"""
if not args:
args = sys.argv[1:]
usage = 'usage: %prog [options] "command" file1 file2 ...'
parser = OptionParser(usage=usage)
parser.add_option("-v", "--verbose",
action="store_true",
dest="verbose",
default=False,
help="Output timestamp when commands are run.")
parser.add_option("--version",
action="store_true",
dest="version",
default=False,
help="Output verion number and exit.")
options, args = parser.parse_args(args)
if options.version:
print "pywatch %s" % VERSION
sys.exit(0)
if len(args) < 2:
print parser.error("You must provide a shell command and at least one file.")
cmds = [args[0], ]
files = args[1:]
w = Watcher(cmds=cmds, files=files, verbose=options.verbose)
w.run_monitor()
sys.exit(0)
def main(args=None):
"""
Used by the pywatch script to handle command-line
args.
"""
if not args:
args = sys.argv[1:]
usage = 'usage: %prog [options] "command" file1 file2 ...'
parser = OptionParser(usage=usage)
parser.add_option("-v",
"--verbose",
action="store_true",
dest="verbose",
default=False,
help="Output timestamp when commands are run.")
parser.add_option("--version",
action="store_true",
dest="version",
default=False,
help="Output verion number and exit.")
parser.add_option("--no-clear",
action="store_true",
default=True,
help="Don't clear the terminal when files change.")
options, args = parser.parse_args(args)
if options.version:
print "pywatch %s" % VERSION
sys.exit(0)
if len(args) < 2:
print parser.error(
"You must provide a shell command and at least one file.")
cmds = [
args[0],
]
files = args[1:]
w = Watcher(cmds=cmds,
files=files,
verbose=options.verbose,
clear=options.no_clear)
w.run_monitor()
sys.exit(0)
def test_add_files(self):
"""When files are added, either at init or via add_files
watcher.files length should reflect that. Non-files or duplicates
shouldn't be reflected."""
self.assertEqual(0, len(self.watcher.files))
self.watcher.add_files(self.fixture("a.txt"), self.fixture("b.txt"))
self.assertEqual(2, len(self.watcher.files))
self.watcher.add_files(self.fixture("c.txt"))
self.assertEqual(3, len(self.watcher.files))
w = Watcher(files=[self.fixture("a.txt"), self.fixture("b.txt"), self.fixture("c.txt")])
self.assertEqual(3, len(w.files))
def test_add_cmds(self):
"""When files are added, either at init or via add_cmds
watcher.cmds length should reflect that. Non-files or duplicates
shouldn't be reflected."""
w = Watcher()
self.assertEqual(0, len(w.cmds))
w.add_cmds("python %s" % self.fixture('sample.py'), self.fixture('sample.py'))
self.assertEqual(2, len(w.cmds))
w = Watcher(cmds=["python %s" % self.fixture('sample.py')])
self.assertEqual(1, len(w.cmds))
class WatcherTest(unittest.TestCase):
def touch(self, filename):
os.utime(filename, None)
def setUp(self):
base_path = os.path.abspath(os.path.realpath(os.path.dirname(__file__)))
self.fixtures_path = os.path.join(base_path, 'fixtures')
self.watcher = Watcher()
def tearDown(self):
self.watcher.stop_monitor()
del self.watcher
def fixture(self, *filenames):
return os.path.join(self.fixtures_path, *filenames)
def test_directories(self):
self.watcher.add_files(self.fixture("subdir"))
self.assert_(len(self.watcher.files) > 1, "Expected more than 1 file, %s watched" % len(self.watcher.files))
self.touch(self.fixture("subdir", "bar.txt"))
self.watcher.monitor_once()
self.assertEqual(1, self.watcher.num_runs)
self.touch(self.fixture("subdir", "subsubdir", "baz.txt"))
self.watcher.monitor_once()
self.assertEqual(2, self.watcher.num_runs)
def test_add_files(self):
"""When files are added, either at init or via add_files
watcher.files length should reflect that. Non-files or duplicates
shouldn't be reflected."""
self.assertEqual(0, len(self.watcher.files))
self.watcher.add_files(self.fixture("a.txt"), self.fixture("b.txt"))
self.assertEqual(2, len(self.watcher.files))
self.watcher.add_files(self.fixture("c.txt"))
self.assertEqual(3, len(self.watcher.files))
w = Watcher(files=[self.fixture("a.txt"), self.fixture("b.txt"), self.fixture("c.txt")])
self.assertEqual(3, len(w.files))
def test_add_cmds(self):
"""When files are added, either at init or via add_cmds
watcher.cmds length should reflect that. Non-files or duplicates
shouldn't be reflected."""
w = Watcher()
self.assertEqual(0, len(w.cmds))
w.add_cmds("python %s" % self.fixture('sample.py'), self.fixture('sample.py'))
self.assertEqual(2, len(w.cmds))
w = Watcher(cmds=["python %s" % self.fixture('sample.py')])
self.assertEqual(1, len(w.cmds))
def test_file_monitoring(self):
"""Files that are touched should trigger an execution. watcher.num_runs
should reflect the number of times this Watcher instance has executed
its command list."""
self.assertEqual(0, self.watcher.num_runs)
self.watcher.add_files(self.fixture("a.txt"), self.fixture("b.txt"))
self.assertEqual(0, self.watcher.num_runs)
self.touch(self.fixture("a.txt"))
self.watcher.monitor_once()
self.assertEqual(1, self.watcher.num_runs)
self.touch(self.fixture("b.txt"))
self.watcher.monitor_once()
self.assertEqual(2, self.watcher.num_runs)
self.watcher.monitor_once()
self.assertEqual(2, self.watcher.num_runs)
def test_continous_file_monitoring(self):
"""Watcher.monitor() should run continously executing the command
list whenever files change."""
self.watcher.add_files(self.fixture("a.txt"), self.fixture("b.txt"), self.fixture("c.txt"))
self.watcher.monitor()
self.touch(self.fixture("a.txt"))
time.sleep(2)
self.assertEqual(1, self.watcher.num_runs)
self.watcher.stop_monitor()
def test_clear_terminal_by_default(self):
with patch('pywatch.watcher.os.system') as mocked_system:
self.watcher.execute()
mocked_system.assert_called_with('clear')
def test_dont_clear_terminal_when_set(self):
with patch('pywatch.watcher.os.system') as mocked_system:
self.watcher.clear = False
self.watcher.cmds = ['']
self.watcher.execute()
mocked_system.assert_called_once_with('')
def setUp(self):
base_path = os.path.abspath(os.path.realpath(os.path.dirname(__file__)))
self.fixtures_path = os.path.join(base_path, 'fixtures')
self.watcher = Watcher()