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Re: [PATCH 0/2] Fix regression: CamelCased aliases

Jeff King <peff@xxxxxxxx> writes:

>> There is also this:
>>   $ git branch
>>   * master
>>   $ git BRANCH
>>   git: 'BRANCH' is not a git command. See 'git --help'.
>>   $ git config alias.branch 'branch -v'
>>   $ git branch
>>   * master
>>   $ git BRANCH
>>   * master 51c785c initial
> That is an interesting side effect, especially the latter BRANCH/branch
> one. We usually do not allow overrides of actual git commands, but this
> "fools" that check.

This one is tricky.  An obvious fix would be, because users expect
that their aliases are case insensitive, the rule that forbids and
ignores an alias that masks a real git subcommand should also apply
case insensitively.  But that opens another can of worms.  If "git
Branch" is forbidden to be an alias, it should not just fail but
invoke "git branch", which would mean that Git subcommands should
also be looked up case insensitively!  I am not sure if we want to
go there.

> I agree it's an unexpected fallout. On the other hand, unless you are
> _trying_ to do something funny, I don't think you'd ever hit on this
> behavior. And if you are trying to do something funny, I think this
> behaves in a reasonable and predictable manner.