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Re: RFE: version-controlled merge rules

On December 28, 2018 6:35:23 AM PST, Junio C Hamano <gitster@xxxxxxxxx> wrote:
>Jonathan Nieder <jrnieder@xxxxxxxxx> writes:
>> The main issue I see is that this would make it a little *too* easy
>> run arbitrary code on the user's machine.  Build systems often
>> lead to that, but users are more familiar with the risks for build
>> than for version control.
>> See [1] for some related discussion.
>> That said, using the include.path feature (see git-config(1)), it's
>> possible to do something similar:
>> 	[include]
>> 		path = ../.gitconfig
>> Thanks and hope that helps,
>The issue the arrangement to specify what kind of files they are in
>the attribute system and to specify what exact commands to be run in
>the configuration addresses is twofold.  The security issue is one
>and poking a hole with include.path mechanism is probably OK as
>there is end-user consent, but I tend to agree that a similar risk
>already exists by a project shipping Makefile et al.
>There is the other side of the issue.
>The arrangement allows project not to be monoculture by leaving the
>exact command sequence to use on the kind of files (specified by the
>project with the attribute system) up to the end-user in their
>configuration.  While Peter may feel that sort piped to head may be
>available on all the reasonable UNIX systems, his merge driver would
>not work on other platforms.  There already is a similar reliance of
>monoculture by a project shipping Makefile et al, which is an
>interesting parallel.

This is actually a further good reason for doing it this way: it means that more genal drivers can be written using files in the repo, depending on what the baseline of the project is.
Sent from my Android device with K-9 Mail. Please excuse my brevity.