New backward incompatible version of Guile Config

[Alex Sassmannshausen <alex.sassmannshausen@gmail.com>]

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Hello,

I'm in the process of releasing guile-config 0.5, which unfortunately is
backward incompatible in some ways.

As a result I want to give developers who are using it a chance to
upgrade gradually.

To this end, in the attached patch, I add a new variable for 0.5. My
intention is to have 0.4.2 and 0.5 coexist for a while and then to
switch fully to 0.5 in due course.


Is this an acceptable way of doing a gradual transition to a backwards
incompatible version of the library?

Best wishes,

Alex


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From fadba5c1c27d96b8e49dcf987eb3c09a2bbb0776 Mon Sep 17 00:00:00 2001
From: Alex Sassmannshausen <alex@komputilo.eu>
Date: Wed, 17 Feb 2021 16:48:39 +0100
Subject: [PATCH] gnu: Add guile-config-0.5.

* gnu/packages/guile-xyz.scm (guile-config-0.5): New variable.
---
 gnu/packages/guile-xyz.scm | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
index 984c2b1109..b62dbe20d5 100644
--- a/gnu/packages/guile-xyz.scm
+++ b/gnu/packages/guile-xyz.scm
@@ -1582,6 +1582,21 @@ above command-line parameters.")
 (define-public guile3.0-config
   (deprecated-package "guile3.0-config" guile-config))
 
+(define-public guile-config-0.5
+  (package
+    (inherit guile-config)
+    (name "guile-config-0.5")
+    (version "0.5.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://gitlab.com/a-sassmannshausen/guile-config")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256 (base32
+                "1xrl8bdcvvvbsrms0s3pp3d698541fv5b5kyy1z2kwli7akvdiph"))))))
+
 (define-public guile-hall
   (package
     (name "guile-hall")
-- 
2.28.0


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