From: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date: Mon, 14 Jun 2010 22:51:11 GMT
Subject: Re: [PATCH 1/2] Add infrastructure for translating Git with gettext
Message-ID: <AANLkTimpb9_91SOCR_SkA38Iwi6LQzu3ejxgtmyHe6tA@mail.gmail.com>
In-Reply-To: <201006142356.46780.trast@student.ethz.ch>

On Mon, Jun 14, 2010 at 21:56, Thomas Rast <trast@student.ethz.ch> wrote:
> Ævar Arnfjörð Bjarmason wrote:
>> It turns out that this doesn't actually work, and I can't find a
>> workaround. In Bash and Solaris's /bin/sh this executes until "dies
>> here". The problem is that I can't use the subshell trick, since the
>> gettext.sh inclusion has to be done in the current shell (I checked,
>> tests will fail).
>>
>>     #!/bin/sh
>>     (. does-not-exist.sh)
>>     echo "A subshell made it! ret = $?"
>>     . does-not-exist.sh
>>   # dies here
>>     echo "A real shell made it! ret = $?"
>>
>> Is there some clever shellscript trick that I'm missing, or will I
>> have to resort to modifying the file at `make' time for this to work
>> everywhere?
>
> Works for me in bash (4.0.35), but fails the way you say in dash (if
> only I could figure out the option that tells me the version!).
>
> This works however:
>
>  type does-not-exist.sh 2>/dev/null && . does-not-exist.sh

Thanks. That works, I've tested the following script:

    #!/bin/sh
    type meh.sh >/dev/null 2>&1 && . meh.sh && echo "Included meh.sh"
|| echo "Didn't include meh.sh"
    echo "I've made it!"
    type gettext.sh >/dev/null 2>&1 && . gettext.sh && echo "Included
gettext.sh" || echo "Didn't include gettext.sh"
    echo "I've made it!"

On the following:

    FreeBSD: /bin/sh, bash
    Solaris: /bin/sh, /usr/bin/ksh, bash,
    Debian: dash, bash

They all make it to the last "I've made it!".

> I suspect it only works if the script is executable, as otherwise type
> would not find it (but . would).  But at least on my system, it is.

With gettext.sh the assumption that it's +x seems valid, the
installation script for GNU gettext always gives it an executable bit.