class FileCacheTest(unittest.TestCase):
"""Ensure that a file cache can properly write to a file and recover its
contents."""
def setUp(self):
self.scratch_dir = tempfile.mkdtemp()
self.cache = FileCache(self.scratch_dir)
def tearDown(self):
shutil.rmtree(self.scratch_dir)
def test_write_and_read_cache_file(self):
"""Test writing then reading a cached file."""
with self.cache.write_transaction('test.yaml') as (old, new):
self.assertTrue(old is None)
self.assertTrue(new is not None)
new.write("foobar\n")
with self.cache.read_transaction('test.yaml') as stream:
text = stream.read()
self.assertEqual("foobar\n", text)
def test_remove(self):
"""Test removing an entry from the cache."""
self.test_write_and_write_cache_file()
self.cache.remove('test.yaml')
self.assertFalse(os.path.exists(self.cache.cache_path('test.yaml')))
self.assertFalse(os.path.exists(self.cache._lock_path('test.yaml')))
def test_write_and_write_cache_file(self):
"""Test two write transactions on a cached file."""
with self.cache.write_transaction('test.yaml') as (old, new):
self.assertTrue(old is None)
self.assertTrue(new is not None)
new.write("foobar\n")
with self.cache.write_transaction('test.yaml') as (old, new):
self.assertTrue(old is not None)
text = old.read()
self.assertEqual("foobar\n", text)
self.assertTrue(new is not None)
new.write("barbaz\n")
with self.cache.read_transaction('test.yaml') as stream:
text = stream.read()
self.assertEqual("barbaz\n", text)
def file_cache(tmpdir):
"""Returns a properly initialized FileCache instance"""
return FileCache(str(tmpdir))
concretizer = DefaultConcretizer()
#-----------------------------------------------------------------------------
# config.yaml options
#-----------------------------------------------------------------------------
_config = spack.config.get_config('config')
# Path where downloaded source code is cached
cache_path = canonicalize_path(
_config.get('source_cache', join_path(var_path, "cache")))
fetch_cache = spack.fetch_strategy.FsCache(cache_path)
# cache for miscellaneous stuff.
misc_cache_path = canonicalize_path(
_config.get('misc_cache', join_path(user_config_path, 'cache')))
misc_cache = FileCache(misc_cache_path)
# If this is enabled, tools that use SSL should not verify
# certifiates. e.g., curl should use the -k option.
insecure = not _config.get('verify_ssl', True)
# Whether spack should allow installation of unsafe versions of software.
# "Unsafe" versions are ones it doesn't have a checksum for.
do_checksum = _config.get('checksum', True)
# If this is True, spack will not clean the environment to remove
# potentially harmful variables before builds.
dirty = _config.get('dirty', False)
#-----------------------------------------------------------------------------
# When packages call 'from spack import *', this extra stuff is brought in.
def setUp(self):
self.scratch_dir = tempfile.mkdtemp()
self.cache = FileCache(self.scratch_dir)