The FileInfo.CopyTo is basically a wrapper around the Win32 API call “CopyFile” in the kernel32.dll. This method does not support progress callback. However, the CopyFileEx method does, and you can write your own .NET wrapper around it in a few minutes, like it is described here: http://www.pinvoke.net/default.aspx/kernel32.CopyFileEx
distutils.dir_util.copy_tree does what you want. Copy an entire directory tree src to a new location dst. Both src and dst must be directory names. If src is not a directory, raise DistutilsFileError. If dst does not exist, it is created with mkpath(). The end result of the copy is that every file in src is … Read more
Inspired by Gerard’s solution I came up with the following code: from django.core.files.base import ContentFile #… class Example(models.Model): file = models.FileField() def duplicate(self): “”” Duplicating this object including copying the file “”” new_example = Example() new_file = ContentFile(self.file.read()) new_file.name = self.file.name new_example.file = new_file new_example.save() This will actually go as far as renaming the file … Read more
In a shallow merge, the properties of the first object are overwritten with the same property values of the second object. Lets look at an example. Setup: var obj1 = { foo: { prop1: 42, }, }; var obj2 = { foo: { prop2: 21, }, bar: { prop3: 10, }, }; Shallow: var result … Read more
If your production SQL server and test SQL server can talk, you could just do in with a SQL insert statement. first run the following on your test server: Execute sp_addlinkedserver PRODUCTION_SERVER_NAME Then just create the insert statement: INSERT INTO [PRODUCTION_SERVER_NAME].DATABASE_NAME.dbo.TABLE_NAME (Names_of_Columns_to_be_inserted) SELECT Names_of_Columns_to_be_inserted FROM TABLE_NAME
Use Buffer.BlockCopy. Its entire purpose is to perform fast (see Buffer): This class provides better performance for manipulating primitive types than similar methods in the System.Array class. Admittedly, I haven’t done any benchmarks, but that’s the documentation. It also works on multidimensional arrays; just make sure that you’re always specifying how many bytes to copy, … Read more
You add a virtual Base* clone() const = 0; in your base class and implement it appropriately in your Derived classes. If your Base is not abstract, you can of course call its copy-constructor, but that’s a bit dangerous: If you forget to implement it in a derived class, you’ll get (probably unwanted) slicing. If … Read more
You’ve got two problems: 1 – subprocess.call() expects a list of arguments, not multiple arguments: #wrong subprocess.call(‘cp’, in, out) #right subprocess.call([‘cp’, in, out]) 2 – in is a python reserved keyword, change it to something like inp: #wrong subprocess.call([‘cp’, in, out]) #right subprocess.call([‘cp’, inp, out])
I’d opt for xcopy in this case since the error levels are documented (see xcopy documentation, paraphrased below): Exit code Description ========= =========== 0 Files were copied without error. 1 No files were found to copy. 2 The user pressed CTRL+C to terminate xcopy. 4 Initialization error occurred. There is not enough memory or disk … Read more