Re: [PATCH] gitweb-lib.sh: Set up PATH to use perl from /usr/bin

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On Tue, May 01, 2012 at 06:23:37PM +0200, Zbigniew Jędrzejewski-Szmek wrote:

> On 05/01/2012 01:23 PM, Torsten Bögershausen wrote:
> > When there are different version of perl installed on the machine,
> > the $PATH may point out a different version of perl than /usr/bin.
> > One example is to have /opt/local/bin/perl before /usr/bin/perl.
> > 
> > Sanitize the PATH by adding /usr/bin at the beginning
> Hm, I see that most scripts have #!/usr/bin/perl, and only two have
> #!env perl [1]. So in general we usally rely on using perl in /usr/bin.

The Makefile substitutes $PERL_PATH on the #!-line of each perl script
during its "build" step (which is really just copying the file to its
final name and running "chmod +x").

So even though the source files say /usr/bin/perl, we are not relying on
that. If you look at the Makefile rule carefully, you will see that even
"#!/usr/bin/env perl" gets replaced, too. Those scripts should probably
be updated, since the mention of env is simply confusing.

> But your patch affects other stuff than perl, and unconditionally
> changing PATH set by the user is not nice, as it affect programs called
> recursively. Wouldn't simply replacing all calls to bare perl in
> t/gitweb-lib.sh with invocations of /usr/bin/perl be better?

Yes, although they should use $PERL_PATH rather than hardcoding
/usr/bin.

-Peff
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