def run_webpack_compilation(source_maps=False):
"""Runs webpack compilation.
Args:
source_maps: bool. Whether to compile with source maps.
"""
max_tries = 5
webpack_bundles_dir_name = 'webpack_bundles'
for _ in range(max_tries):
try:
managed_webpack_compiler = (servers.managed_webpack_compiler(
use_source_maps=source_maps))
with managed_webpack_compiler as proc:
proc.wait()
except subprocess.CalledProcessError as error:
print(error.output)
sys.exit(error.returncode)
return
if os.path.isdir(webpack_bundles_dir_name):
break
else:
# We didn't break out of the loop, meaning all attempts have failed.
print('Failed to complete webpack compilation, exiting...')
sys.exit(1)
def test_managed_webpack_compiler_with_max_old_space_size(self):
popen_calls = self.exit_stack.enter_context(
self.swap_popen(outputs=[b'Built at: 123']))
self.exit_stack.enter_context(
servers.managed_webpack_compiler(max_old_space_size=2056))
self.exit_stack.close()
self.assertEqual(len(popen_calls), 1)
self.assertIn('--max-old-space-size=2056', popen_calls[0].program_args)
def test_managed_webpack_compiler_uses_explicit_config_path(self):
popen_calls = self.exit_stack.enter_context(
self.swap_popen(outputs=[b'Built at: 123']))
self.exit_stack.enter_context(
servers.managed_webpack_compiler(config_path='config.json'))
self.exit_stack.close()
self.assertEqual(len(popen_calls), 1)
self.assertEqual(
popen_calls[0].program_args, '%s %s --config config.json' %
(common.NODE_BIN_PATH, common.WEBPACK_BIN_PATH))
def test_managed_webpack_compiler_uses_dev_config(self):
popen_calls = self.exit_stack.enter_context(
self.swap_popen(outputs=[b'Built at: 123']))
self.exit_stack.enter_context(
servers.managed_webpack_compiler(use_prod_env=False,
use_source_maps=False))
self.exit_stack.close()
self.assertEqual(len(popen_calls), 1)
self.assertEqual(
popen_calls[0].program_args, '%s %s --config %s' %
(common.NODE_BIN_PATH, common.WEBPACK_BIN_PATH,
common.WEBPACK_DEV_CONFIG))
def run_webpack_compilation():
"""Runs webpack compilation."""
max_tries = 5
webpack_bundles_dir_name = 'webpack_bundles'
for _ in range(max_tries):
try:
with servers.managed_webpack_compiler() as proc:
proc.wait()
except subprocess.CalledProcessError as error:
print(error.output)
sys.exit(error.returncode)
if os.path.isdir(webpack_bundles_dir_name):
break
if not os.path.isdir(webpack_bundles_dir_name):
print('Failed to complete webpack compilation, exiting...')
sys.exit(1)
def test_managed_webpack_compiler_in_watch_mode_raises_when_not_built(self):
# NOTE: The 'Built at: ' message is never printed.
self.exit_stack.enter_context(self.swap_popen(outputs=[b'abc', b'def']))
str_io = python_utils.string_io()
self.exit_stack.enter_context(python_utils.redirect_stdout(str_io))
self.assertRaisesRegexp(
IOError, 'First build never completed',
lambda: self.exit_stack.enter_context(
servers.managed_webpack_compiler(watch_mode=True)))
self.assert_matches_regexps(str_io.getvalue().strip().split('\n'), [
'Starting new Webpack Compiler',
'abc',
'def',
'Stopping Webpack Compiler',
])
def test_managed_webpack_compiler_in_watch_mode_when_build_succeeds(self):
popen_calls = self.exit_stack.enter_context(
self.swap_popen(outputs=[b'abc', b'Built at: 123', b'def']))
str_io = io.StringIO()
self.exit_stack.enter_context(contextlib.redirect_stdout(str_io))
logs = self.exit_stack.enter_context(self.capture_logging())
proc = self.exit_stack.enter_context(
servers.managed_webpack_compiler(watch_mode=True))
self.exit_stack.close()
self.assert_proc_was_managed_as_expected(logs, proc.pid)
self.assertEqual(len(popen_calls), 1)
self.assertIn('--color', popen_calls[0].program_args)
self.assertIn('--watch', popen_calls[0].program_args)
self.assertIn('--progress', popen_calls[0].program_args)
self.assert_matches_regexps(str_io.getvalue().strip().split('\n'), [
'Starting new Webpack Compiler',
'abc',
'Built at: 123',
'def',
'Stopping Webpack Compiler',
])