Re: offlineimap

[Efraim Flashner <efraim@flashner.co.il>]

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On Wed, Apr 06, 2016 at 12:14:36PM +0300, Efraim Flashner wrote:
> On Wed, 6 Apr 2016 11:09:34 +0200
> Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> wrote:
> 
> > Efraim Flashner <efraim@flashner.co.il> writes:
> > 
> >  [...]  
> > 
> > I’ve been using the sqlite backend for a while myself and it’s really
> > quite nice.
> > 
> > Does this dependency really need to be propagated, though?  Or could we
> > wrap the “offlineimap” executable in a suitable PYTHONPATH instead?
> > 
> > ~~ Ricardo
> 
> From my understanding it needs to "be available", which in FHS terms means be
> installed, but I assume wrapping the offlineimap executable would work, and
> without propagating more programs into the user's profile.
> 

I think I've gotten it right with the PYTHONPATH, this is my first time
tring it that way. Here's the output of `guix gc --references`:
$guix gc --referencesi /gnu/store/z1i4vkk8zpxszkavx5dmaq11lvkspp9y-offlineimap-6.7.0
/gnu/store/b1yqjimbdh5bf9jnizd4h7yf110744j2-bash-4.3.42
/gnu/store/kcc3cxnx9l2hbg7pjhxsa0r5yq2j2f38-python-2.7.10
/gnu/store/pdhx76bbawkwrlqql2yglcl91bi5yrrc-python2-pysqlite-2.8.1
/gnu/store/z1i4vkk8zpxszkavx5dmaq11lvkspp9y-offlineimap-6.7.0

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From c108ec58dbeccd324faf7c65a04054f24a096350 Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Thu, 7 Apr 2016 09:51:21 +0300
Subject: [PATCH] gnu: offlineimap: Add sqlite support.

* gnu/packages/mail.scm (offlineimap)[inputs]: Add python2-pysqlite.
[arguments]: Wrap binary with python2-pysqlite's path.
---
 gnu/packages/mail.scm | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 7bcb93c..e5eefc7 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -302,11 +302,21 @@ and corrections.  It is based on a Bayesian filter.")
                 "0462mal2fxvavxhwjk1a6vsnspx07yniifa687dwg46aplqznin4"))))
     (build-system python-build-system)
     (native-inputs `(("python" ,python-2)))
+    (inputs `(("python2-pysqlite" ,python2-pysqlite)))
     (arguments
      ;; The setup.py script expects python-2.
      `(#:python ,python-2
       ;; Tests require a modifiable IMAP account.
-       #:tests? #f))
+       #:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'wrap-binary
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (bin (string-append out "/bin/offlineimap")))
+               (wrap-program bin
+                 `("PYTHONPATH" ":" prefix (,(getenv "PYTHONPATH"))))
+               #t))))))
     (home-page "http://www.offlineimap.org")
     (synopsis "Sync emails between two repositories")
     (description
-- 
2.8.0.rc3


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