From d5f984dcb2d77f281f0acf4b418276a801235d91 Mon Sep 17 00:00:00 2001
From: Martin Becze <address@hidden>
Date: Wed, 15 Apr 2020 19:37:53 -0500
Subject: [PATCH v2] gnu: Add trezor-common

* gnu/packages/finance.scm (trezor-common): New variable.
  (trezord): Install udev rules from trezor-common.
---
 gnu/packages/finance.scm | 50 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 47 insertions(+), 3 deletions(-)

diff --git a/gnu/packages/finance.scm b/gnu/packages/finance.scm
index ee254c3a9f..b1f6ebcf60 100644
--- a/gnu/packages/finance.scm
+++ b/gnu/packages/finance.scm
@@ -41,6 +41,7 @@
   #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system cmake)
+  #:use-module (guix build-system copy)
   #:use-module (guix build-system emacs)
   #:use-module (guix build-system python)
   #:use-module (guix build-system glib-or-gtk)
@@ -1165,6 +1166,35 @@ information.")
     (home-page "https://grisbi.org")
     (license license:gpl2+)))
 
+(define-public trezor-common
+  (let ((commit "bff7fdfe436c727982cc553bdfb29a9021b423b0")
+        (revision "0"))
+      (package
+        (name "trezor-common")
+        (version (git-version "0.0.0" revision commit))
+        (source
+         (origin
+           (method git-fetch)
+           (uri (git-reference
+                 (url "https://github.com/trezor/trezor-common.git")
+                 (commit commit)))
+           (sha256
+            (base32
+             "14mrirrn68if7ja6qdk9qlxs1hv0f21vrxy5ncnms0gx9iwakp2l"))
+           (file-name (git-file-name name version))))
+        (build-system copy-build-system)
+        (arguments
+         '(#:install-plan
+           ;; currently we only have use for the udev rules
+           '(("./udev/51-trezor.rules" "lib/udev/rules.d/"))))
+        (home-page "https://github.com/trezor/trezor-common")
+        (synopsis "This project contains files shared among Trezor projects.")
+        (description
+         "This project contains files shared among Trezor projects,
+including the udev rules for trezord")
+        (properties '((hidden? . #t)))
+        (license license:lgpl3+))))
+
 (define-public trezord
   (package
     (name "trezord")
@@ -1173,15 +1203,29 @@ information.")
      (origin
        (method git-fetch)
        (uri (git-reference
-              (url "https://github.com/trezor/trezord-go.git")
-              (commit (string-append "v" version))))
+             (url "https://github.com/trezor/trezord-go.git")
+             (commit (string-append "v" version))))
        (sha256
         (base32
          "1ks1fa0027s3xp0z6qp0dxmayvrb4dwwscfhbx7da0khp153f2cp"))
        (file-name (git-file-name name version))))
     (build-system go-build-system)
+    (native-inputs
+     `(("trezor-common" ,trezor-common)))
     (arguments
-     '(#:import-path "github.com/trezor/trezord-go"))
+     '(#:import-path "github.com/trezor/trezord-go"
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'install 'check
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (common (assoc-ref inputs "trezor-common"))
+                    (rule-path "/lib/udev/rules.d/51-trezor.rules")
+                    (input-path (string-append common rule-path))
+                    (output-path (string-append out rule-path)))
+
+               ;; install the udev rules
+               (install-file input-path output-path)))))))
     (home-page "https://trezor.io")
     (synopsis "Trezor Communication Daemon aka Trezor Bridge (written in Go)")
     (description "This allows a Trezor hardware wallet to communicate to the
-- 
2.26.1