Subject: [PATCH] scripts: edit: Fix relative file-name with 'load-path' option.

From: Simon Tournier <[email-masked]>
Date: Thu, 2 Nov 2023 21:34:35 +0100

* guix/scripts/edit.scm (search-path*): Use 'canonicalize-path' if
'search-path' fails.

Change-Id: I891d63d0d28577a7d1732fc59435828ecc0a5c5a
---
 guix/scripts/edit.scm | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Hi,

Using Guix aabfddb, consider:

--8<---------------cut here---------------start------------->8---
$ guix show -L src/example hi
name: hi
version: 2.10
outputs:
+ out: everything
systems: x86_64-linux i686-linux
dependencies: [email-masked]
location: src/example/first.scm:9:2
homepage: https://www.gnu.org/software/hello/
license: GPL 3+
synopsis: Hello, GNU world: An example GNU package
description: Guess what GNU Hello prints!

$ guix edit -L src/example hi
guix edit: error: file 'src/example/first.scm' not found in search path ("src/example" "/gnu/store/yzib23ah0rlmim0j4737g2wrhx1r1q3r-guix-module-union/share/guile/site/3.0" "/gnu/store/84rvhd3j7pfqrh7717cv7ddv2dc8xad5-guile-3.0.9/share/guile/3.0" "/gnu/store/84rvhd3j7pfqrh7717cv7ddv2dc8xad5-guile-3.0.9/share/guile/3.0" "/gnu/store/84rvhd3j7pfqrh7717cv7ddv2dc8xad5-guile-3.0.9/share/guile/site/3.0" "/gnu/store/84rvhd3j7pfqrh7717cv7ddv2dc8xad5-guile-3.0.9/share/guile/site" "/gnu/store/84rvhd3j7pfqrh7717cv7ddv2dc8xad5-guile-3.0.9/share/guile" "/home/simon/.guix-profile/share/guile/site/3.0" "/home/simon/.config/guix/profiles/emacs/emacs/share/guile/site/3.0" "/home/simon/.guix-profile/share/guile/site/3.0" "/home/simon/.config/guix/profiles/emacs/emacs/share/guile/site/3.0")
--8<---------------cut here---------------end--------------->8---

The issue is that the procedure 'search-path' returns #f.  It looks similar as
fixed bug #42543 [1] by d10474c38d58bdc676e64336769dc2e00cdfa8ed.

Here, I do not know how to avoid 'canonicalize-path' when 'search-path'
returns #f because some relative.

WDYT?

1: https://issues.guix.gnu.org/42543

Cheers,
simon

diff --git a/guix/scripts/edit.scm b/guix/scripts/edit.scm
index ff2d529bcf..7ec725fc08 100644
--- a/guix/scripts/edit.scm
+++ b/guix/scripts/edit.scm
@@ -64,7 +64,11 @@ (define %editor
 
 (define (search-path* path file)
   "Like 'search-path' but exit if FILE is not found."
-  (let ((absolute-file-name (search-path path file)))
+  (let ((absolute-file-name (or (search-path path file)
+                                ;; It could be that FILE is a relative name
+                                ;; i.e., not relative to an element of PATH.
+                                (and (file-exists? file)
+                                     (canonicalize-path file)))))
     (unless absolute-file-name
       ;; Shouldn't happen unless somebody fiddled with the 'location' field.
       (leave (G_ "file '~a' not found in search path ~s~%")

base-commit: 28ebbe2be8829a4767b9789c6353ad5e826d1164
-- 
2.41.0