Re: [PATCH 1/3] rev-parse: add --sq-quote to shell quote arguments

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Le vendredi 24 avril 2009, Johannes Sixt a écrit :
> Junio C Hamano schrieb:
> > Not very readable.  A better example might be to demonstrate something
> > like this:
> >
> > 	$ cat >your-git-script.sh <<\EOF
> > 	#!/bin/sh
> > 	# quote user-supplied arguments
> > 	args=$(git rev-parse --sq-quote "$@")
> >         # and use it inside a handcrafted command line
> >         command="git frotz -n24 $args"
> >         eval "$command"
> > 	EOF
> >
> > 	$ sh your-git-script.sh "a b'c"
> >
> > i.e, put stress on how to use it, not on how it works internally.
>
> Hmm, that makes me wonder why we special-case shell-quoting and implement
> it in an executable. Why don't we have perl-quoting, C-quoting,
> PHP-quoting, $language-of-your-choice quoting, etc, too?

Because there are a lot of shell scripts in the Git source code and it's an 
important problem for shell scripts to properly handle arguments.

> I think we should simply move sq() from git-am to git-sh-setup and use
> that in git-bisect.

We already have an implementation of shell quoting in C, why not use it 
everywhere instead of having 2 implementations?

And what happens if someone want to port to C a shell script that uses sq()?
The implementation used will have to be the one in C, so why not use it 
right now?

Regards,
Christian.
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