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From: John Darrington <john@darrington.wattle.id.au>
To: David Craven <david@craven.ch>
Cc: guix-devel <guix-devel@gnu.org>, John Darrington <jmd@gnu.org>
Subject: Re: [PATCH] gnu: Mark /gnu/store as needed for boot.
Date: Sun, 15 Jan 2017 12:18:36 +0100	[thread overview]
Message-ID: <20170115111836.GA22336@jocasta.intra> (raw)
In-Reply-To: <CAL1_im=em+P-9_=Qrv69iJZ+oLMf+AM88p5LpChPg3Lc7E+OHA@mail.gmail.com>

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On Sun, Jan 15, 2017 at 10:53:02AM +0100, David Craven wrote:
     > will erroneously return #t when (file-system-mount-point fs) evaluates
     > to "/gn"  and (%store-directory) to "/gnu/store".  Will it not???
     
     The trick is to revert the arguments:
     
     (string-prefix? (%store-directory) (file-system-mount-point fs))

No that will also be wrong.

(string-prefix? "/gnu/store" "/gnu") => #f

I think the procedure  I wrote does it correctly.

J'

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  reply	other threads:[~2017-01-15 11:18 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-11 20:01 [PATCH] gnu: Mark /gnu/store as needed for boot John Darrington
2017-01-13  8:59 ` Chris Marusich
2017-01-13 11:01   ` John Darrington
2017-01-14 21:30 ` Ludovic Courtès
2017-01-15  6:32   ` John Darrington
2017-01-15  9:53     ` David Craven
2017-01-15 11:18       ` John Darrington [this message]
2017-01-15 22:24     ` Ludovic Courtès
2017-01-16 12:46       ` John Darrington
2017-01-16 22:28         ` Ludovic Courtès
2017-01-17 22:52           ` ABI break! Ludovic Courtès
2017-01-18  6:17             ` John Darrington
2017-01-18 10:56               ` David Craven
2017-01-18 21:25               ` Ludovic Courtès
  -- strict thread matches above, loose matches on Subject: below --
2017-01-11 17:48 [PATCH] gnu: Mark /gnu/store as needed for boot John Darrington

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