GNU bug report logs - #38929
sane-hpaio not found by simple-scan?

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From: Rostislav Svoboda <rostislav.svoboda <at> gmail.com>
To: guix-patches <at> gnu.org, 38929 <at> debbugs.gnu.org
Cc: Rostislav Svoboda <Rostislav.Svoboda <at> gmail.com>, Liliana Marie Prikler <liliana.prikler <at> gmail.com>, Maxim Cournoyer <maxim.cournoyer <at> gmail.com>, Noé Lopez <noelopez <at> free.fr>, Vivien Kraus <vivien <at> planete-kraus.eu>
Subject: bug#38929: [PATCH] gnu: simple-scan: enable scanning over network for eSCL/WSD scanners
Date: Mon,  9 Jun 2025 15:21:03 +0200

* gnu/packages/gnome.scm (simple-scan)[inputs]: Add sane-airscan.
<#:phases>: Wrap simple-scan to set
  - LD_LIBRARY_PATH to sane-airscan's lib/sane
  - SANE_CONFIG_DIR to sane-airscan's etc/sane.d

This change allows simple-scan to automatically detect and use eSCL or WSD
(AirScan) backends over the network.

Change-Id: Id1d95c77c3fc549b7baf91d31049541a687bce2d
---
 gnu/packages/gnome.scm | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/gnome.scm b/gnu/packages/gnome.scm
index 56236013a7..3bc26192ff 100644
--- a/gnu/packages/gnome.scm
+++ b/gnu/packages/gnome.scm
@@ -7330,7 +7330,19 @@ (define-public simple-scan
         (base32 "1aghnkvjdyj73kv55nd9gl5b1xjkpcxjn4j3a6z67r9g2j86avn1"))))
     (build-system meson-build-system)
     (arguments
-     '(#:glib-or-gtk? #t))
+     (list
+      #:glib-or-gtk? #t
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'install 'wrap-flatpak
+            (lambda* (#:key inputs #:allow-other-keys)
+              (let ((simple-scan (string-append #$output "/bin/simple-scan"))
+                    (sane-airscan-inputs (assoc-ref inputs "sane-airscan")))
+                (wrap-program simple-scan
+                  `("LD_LIBRARY_PATH" =
+                    (,(string-append sane-airscan-inputs "/lib/sane")))
+                  `("SANE_CONFIG_DIR" prefix
+                    (,(string-append sane-airscan-inputs "/etc/sane.d"))))))))))
     (native-inputs
      (list gettext-minimal
            itstool
@@ -7347,6 +7359,7 @@ (define-public simple-scan
            gdk-pixbuf
            gusb
            libadwaita
+           sane-airscan
            sane-backends))
     (home-page "https://gitlab.gnome.org/GNOME/simple-scan")
     (synopsis "Document and image scanner")

base-commit: 03ce76718c41b32d174713c945d269d6fcdd8bf1
-- 
2.49.0

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