Unified diff in git format?

[anonymous]

Is the diff format of "Download in other formats: Unified Diff" in changeset view configurable?

I'm no expert on the various diff formats. ​wikipedia:Diff#Unified_format says:

There are some modifications and extensions to the diff formats that are used and understood by certain programs and in certain contexts. For example, some revision control systems—such as Subversion—specify a version number, "working copy", or any other comment instead of or in addition to a timestamp in the diff's header section.

Some tools allow diffs for several different files to be merged into one, using a header for each modified file that may look something like this:

Index: path/to/file.cpp

Trac includes such Index: headers. Many tools (GNU patch, hg import, git apply) require a -p0 switch to understand this.

It would be convenient if Trac could also create diffs in a different format that does not require remembering special switches.

​git diff-format typically uses a different format(?) with a/ / b/ prefixes and "extended header lines".

​Mercurial also supports "git extended diff format".

[Jun Omae]

-p opiton of git apply and hg patch is optional and 1 by default but GNU patch always requires -p option.