def saveToDisk(self):
"""Saves the data to disk."""
out.info("Saving to disk (%s)\n" % (self.filename))
# Make sure they want to save
if not self.attrSaveable():
return
# Get whatever the data is
pyld = self.exportAttr(self.getAttr())
# Write the file to disk, truncate if it exists
try:
pickle.dump(pyld, pdos.open(self.filename, "wb"))
pdos.syncFS()
except Exception as e:
out.err("Error writing to disk %s\n" % (str(e)))
def test_pdos():
"""
Test pdos utility module
"""
assert pdos.getMountCmd() == "mount"
assert pdos.isMount("/")
assert pdos.ismount("/")
assert pdos.oscall("true") is None
assert pdos.oscall("false") is not None
assert pdos.oscall("echo hello") is None
assert pdos.oscall("echo hello 1>&2") is None
assert pdos.syncFS() is None
# Make a file, check that our functions respond correctly to it
path = writeTempFile("hello")
assert pdos.fixpath(path) == path
assert "text" in pdos.getFileType(path)
assert pdos.exists(path)
assert not pdos.isdir(path)
assert pdos.isfile(path)
# Remove the file, check that our functions detect that
pdos.unlink(path)
assert pdos.fixpath(path) == path
assert pdos.getFileType(path) is None
assert not pdos.exists(path)
assert not pdos.isdir(path)
assert not pdos.isfile(path)
# Make a directory there instead
pdos.mkdir(path)
assert pdos.fixpath(path) == path
assert "directory" in pdos.getFileType(path)
assert pdos.exists(path)
assert pdos.isdir(path)
assert not pdos.isfile(path)
# Now we will do some manipulations on files under that directory
a = os.path.join(path, "a")
b = os.path.join(path, "b")
c = os.path.join(path, "c")
d = os.path.join(path, "d")
pdos.write(a, "hello")
assert pdos.isfile(a)
pdos.copy(a, b)
assert pdos.isfile(b)
pdos.symlink(a, c)
assert pdos.isfile(c)
pdos.move(a, b)
assert not pdos.isfile(a)
pdos.remove(b)
assert not pdos.isfile(b)
pdos.mkdir(a)
pdos.copytree(a, b)
assert pdos.isdir(b)
# Remove a non-empty directory
pdos.remove(path)
assert not pdos.isdir(path)
# This file is under a directory that no longer exists, so the write must
# fail.
#
# TODO: These should not fail silently. They should either return an error
# indicator or raise an exception.
pdos.writeFile(a, "c")
pdos.write(a, "c")
# Test various ways to call writeFile
pdos.writeFile(path, ["a", "b"])
pdos.writeFile(path, "c")
pdos.writeFile(path, 5) # This one does nothing.
# Test the content with readFile
data = pdos.readFile(path, array=False, delimiter="")
assert data == "abc"
data = pdos.readFile(path, array=True)
assert data == ["a", "b", "c"]
pdos.remove(path)
assert pdos.readFile(path) is None