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[bug#71981] [PATCH] services: configuration: Produce doc even if package
From: |
Tomas Volf |
Subject: |
[bug#71981] [PATCH] services: configuration: Produce doc even if package->symbol fails. |
Date: |
Sun, 7 Jul 2024 19:27:47 +0200 |
Due to #71979 it can happen that package->symbol can return #f even for
packages that are defined in modules on the load patch and which were
previously loaded and set as a default value.
In that case we can just return (package-name val), since for the purpose of
illustrating the default value in the documentation the name should suffice.
And having (possibly) slightly misleading documentation property is still
better then `guix pull' just failing due to passing #f to symbol->string.
* gnu/services/configuration.scm (generate-documentation)[package?]: Fall back
to package-name if package->symbol fails.
Change-Id: I9987caf40d3ff62a52cbd6e3325aa42c69a6c47a
---
gnu/services/configuration.scm | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/gnu/services/configuration.scm b/gnu/services/configuration.scm
index d2b1687496..a0e6fe206f 100644
--- a/gnu/services/configuration.scm
+++ b/gnu/services/configuration.scm
@@ -445,7 +445,14 @@ (define (generate-documentation documentation
documentation-name)
(define (show-default val)
(cond
((package? val)
- (symbol->string (package->symbol val)))
+ (let ((sym (package->symbol val)))
+ ;; Work around for #71979. While in the alternate
+ ;; the answer will not always match the symbol, it
+ ;; should be good enough for illustrating the default
+ ;; value in documentation.
+ (if sym
+ (symbol->string sym)
+ (package-name val))))
(((list-of package?) val)
(format #f "(~{~a~^ ~})" (map package->symbol val)))
(else (str val))))
--
2.45.1
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