Re: pgsql: pg_upgrade: quote directory names in delete_old_cluster script

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От Bruce Momjian
Тема Re: pgsql: pg_upgrade: quote directory names in delete_old_cluster script
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Msg-id 20150216220345.GD24298@momjian.us
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Ответ на Re: pgsql: pg_upgrade: quote directory names in delete_old_cluster script  (Peter Eisentraut <peter_e@gmx.net>)
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On Mon, Feb 16, 2015 at 04:47:23PM -0500, Peter Eisentraut wrote:
> On 2/16/15 4:44 PM, Bruce Momjian wrote:
> > On Sun, Feb 15, 2015 at 12:02:44PM -0500, Peter Eisentraut wrote:
> >> On 2/11/15 10:06 PM, Bruce Momjian wrote:
> >>> pg_upgrade:  quote directory names in delete_old_cluster script
> >>>
> >>> This allows the delete script to properly function when special
> >>> characters appear in directory paths, e.g. spaces.
> >>
> >> Wouldn't single quotes be better than double quotes if you want to
> >> defend against special characters?
> >
> > I thought of that.  Windows only does double-quotes, I think, and I
> > didn't see any value to doing a platform-specific quoting.  Do you?
>
> All of our makefiles use single quotes, so effectively the only
> character we don't support in directory paths is the single quote itself.

This seems to say that Windows batch files don't have any special
meaning for single quotes:

    http://stackoverflow.com/questions/24173825/what-does-single-quote-do-in-windows-batch-files

http://stackoverflow.com/questions/10737283/single-quotes-and-double-quotes-how-to-have-the-same-behaviour-in-unix-and-wind

Again, is it worth doing something platform-specific?  I can certainly
define a platform-specific macro for " or ' as and use that.  Good idea?

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + Everyone has their own god. +


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