gitignore all files (specific filetype) in a directory and subdirectories [duplicate]

Question

What's the right way to ignore a certain filetype in a certain directory and all subdirectories in it?

Example: ignore all .xml files in master/xyz/ and all subdirectories in master/xyz/.

I'm not sure which of the following two approaches is the right one...

master/xyz/*/*.xml

master/xyz/**/*.xml

Which one should I use?

(I use Git 1.9.1)

Answer 1

You can add something like this, it will work as of git 1.8.2.1 (documentation here)

A slash followed by two consecutive asterisks then a slash matches zero or more directories. For example, "a/**/b" matches "a/b", "a/x/b", "a/x/y/b" and so on.

# should work
master/xyz/**/*.xml

The first suggestion you posted won't work as it will not match anything (as it is a literal)

# wont work
master/xyz//.xml