From: Dirk Süsserott <newsletter@dirk.my1.cc>
Date: Mon, 24 Mar 2008 13:15:21 GMT
Subject: Re: git-config: aliases with parameter expansion ($1 and such)
Message-ID: <47E7A969.8010405@dirk.my1.cc>
In-Reply-To: <7vzlso3kjc.fsf@gitster.siamese.dyndns.org>

Thanks for the help. Both
    (1) atag = !sh -c 'git tag -a -m "$0" "$0"'
and
    (2) atag = !sh -c 'git tag -a -m "$1" "$1"' -
work, but in the latter case the '-' is indeed crucial.
If not given, $1 is not set and git tag complains badly.
When called without any args, (1) sets a tag called "sh"
whereas (2) complains about the missing value for the -m option.
So I decided to use the second form. Shells are funny things. ;-)

BTW: Is it true that "-a" is implicitely added to "git tag"
when the "-m" switch is present, i.e. are
    $ git tag -m foo foo
and
    $ git tag -a -m foo foo
equivalent? Thought so, but it's not in the docs.

Junio C Hamano schrieb:
> "Jay Soffian" <jaysoffian@gmail.com> writes:
>
>   
>> All my shell aliases therefor look like:
>>
>> h          = "!sh -c 'git alias \"$1\" || git help \"$1\"' -"
>>
>> (Notice the trailing '-'.)
>>     
>
> Just for my curiosity, why aren't they
>
>   
>> h          = "!sh -c 'git alias \"$0\" || git help \"$0\"'"
>>     
>
> without trailing '-'?
>