Junio C Hamano writes:

> Stepan Koltsov <stepan.koltsov@> writes:
>> stgit fails to export empty patches:
>> % stg new empty-patch -m 'asasas'
>> Now at patch "empty-patch"
>> % stg export empty-patch
>> Checking for changes in the working directory ... done
>> fatal: unrecognized input
>> stg export: git failed with code 128
>> zsh: exit 2     stg export empty-patch
>> % stg --version
>> Stacked GIT 0.16-3-g67cf
>> git version
>> Python version 2.7.1 (r271:86832, Jul 31 2011, 19:30:53)
>> [GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)]

> I don't use (or read the sources to) StGIT, but isn't the whole point of
> "stg export" to "convert your StGIT patches into patch files"?  For an
> empty commit, what is an appropriate output?  IOW, is it reasonable to
> have an empty commit in your history if you are planning to "stg export"
> it?

Here's another example where the functionality is useful: 
https://github.com/Hobo/agility-gitorial-patches is used to build

Each commit/patch becomes a step in the tutorial.  Some tutorial steps don't
have any code attached to them.

In the past, an export of an empty commit would yield a patch where the last
three lines were

> ---
>  0 files changed, 0 insertions(+), 0 deletions(-)

The latest version of stgit along with git v1.6 eliminates the error.  A
bisection identifies cc64b318f26c9e176c4f07b1a459a86e7a04c4eb as the source
of the problem.


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