在Go中递归创建目录的最惯用的方法是什么？

Question

I need to create a given nested directory structure using Go, but I couldn't figure out the most practical and idiomatic way to do that. Some inspiration:

Bash: mkdir -p some/deep/path

C# : IO.Directory.CreateDirectory(@"some/deep/path")

PHP : mkdir("some/deep/path", 0777, true)

Java: new File("some/deep/path").mkdirs()

Go : ?

Requirement is that operation should be silent if path is already in place (just like in the other language examples).

Answer 1

You can try and see if os.MkdirAll does create all the folder that you need.

MkdirAll creates a directory named path, along with any necessary parents, and returns nil, or else returns an error.
The permission bits perm are used for all directories that MkdirAll creates.
If path is already a directory, MkdirAll does nothing and returns nil.

See its test class.

Note that, when you look at its implementation, MkdirAll isn't exactly "atomic".