GNU bug report logs - #44249
[PATCH] gnu: emacs: Make strip-double-wrap more robust

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From: Morgan.J.Smith <at> outlook.com
To: 44249 <at> debbugs.gnu.org
Cc: Morgan Smith <Morgan.J.Smith <at> outlook.com>
Subject: [bug#44249] [PATCH] gnu: emacs: Make strip-double-wrap more robust
Date: Mon, 26 Oct 2020 22:01:45 -0400

From: Morgan Smith <Morgan.J.Smith <at> outlook.com>

* gnu/packages/emacs.scm (emacs) [strip-double-wrap]:
Use regex to find emacs executable. This works even when the version is
changed by package transformations (ex: version=git.master)
---
 gnu/packages/emacs.scm | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index 4963379d74..5c89e4c6b6 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -196,17 +196,13 @@
            (lambda* (#:key outputs #:allow-other-keys)
              ;; Directly copy emacs-X.Y to emacs, so that it is not wrapped
              ;; twice.  This also fixes a minor issue, where WMs would not be
-             ;; able to track emacs back to emacs.desktop.  The version is
-             ;; accessed using using THIS-PACKAGE so it "just works" for
-             ;; inherited Emacs packages of different versions.
+             ;; able to track emacs back to emacs.desktop.
              (with-directory-excursion (assoc-ref outputs "out")
-               (copy-file (string-append
-                           "bin/emacs-"
-                           ,(let ((this-version (package-version this-package)))
-                              (or (false-if-exception
-                                   (version-major+minor+point this-version))
-                                  (version-major+minor this-version))))
-                          "bin/emacs")
+               (copy-file
+                (car
+                 (find-files
+                  "bin" (file-name-predicate "^emacs-([0-9]+\\.)+[0-9]+$")))
+                "bin/emacs")
                #t)))
          (add-before 'reset-gzip-timestamps 'make-compressed-files-writable
            ;; The 'reset-gzip-timestamps phase will throw a permission error
-- 
2.29.1

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