GNU bug report logs - #34838
[PATCH 0/6] Add '--with-git-url' and make sure it composes well

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From: Ludovic Courtès <ludo <at> gnu.org>
To: 34838 <at> debbugs.gnu.org
Cc: Ludovic Courtès <ludo <at> gnu.org>
Subject: [bug#34838] [PATCH 6/6] guix build: '--with-branch' strips slashes from the version string.
Date: Wed, 13 Mar 2019 11:47:51 +0100

This fixes things like:

  guix build glibc \
    --with-git-url=glibc=git://sourceware.org/git/glibc.git \
    --with-branch=glibc=release/2.25/master

whereby slashes would before go straight to the 'version' field, leading
to an invalid store file name.

* guix/scripts/build.scm (transform-package-source-branch)[replace]:
Replace slashes with hyphens in BRANCH when building the version
string.
---
 guix/scripts/build.scm | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/guix/scripts/build.scm b/guix/scripts/build.scm
index 20929d6110..28864435df 100644
--- a/guix/scripts/build.scm
+++ b/guix/scripts/build.scm
@@ -318,7 +318,10 @@ strings like \"guile-next=stable-3.0\" meaning that packages are built using
   (define (replace old url branch)
     (package
       (inherit old)
-      (version (string-append "git." branch))
+      (version (string-append "git." (string-map (match-lambda
+                                                   (#\/ #\-)
+                                                   (chr chr))
+                                                 branch)))
       (source (git-checkout (url url) (branch branch)
                             (recursive? #t)))))
 
-- 
2.21.0

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