Add guix package definition

contrib/guix.scm

@@ -0,0 +1,58 @@
+;; Guix package for marginaltool. To build or install, run from the toplevel directory:
+;;
+;;   guix build --file=contrib/guix.scm
+;;   guix package --install-from-file=contrib/guix.scm
+;;
+;; To create and enter a development environment:
+;;
+;;   guix environment --pure --load=contrib/guix.scm
+
+(define-module (marginaltool)
+  #:use-module (gnu)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix gexp)
+  #:use-module (guix git-download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages security-token)
+  #:use-module (gnu packages tls)
+  #:use-module (gnu packages version-control))
+
+(define %source-dir (dirname (dirname (current-filename))))
+
+(define (git-version directory)
+  (with-directory-excursion directory
+    (read-line (open-pipe* OPEN_READ "git" "describe" "--always" "--tags"))))
+
+(define-public marginaltool
+  (package
+    (name "marginaltool")
+    (version "master")
+    (source
+     (local-file %source-dir #:recursive? #t #:select? (git-predicate %source-dir)))
+    (build-system gnu-build-system)
+    (arguments
+     (list
+      #:make-flags #~(list (string-append "PREFIX=" #$output))
+      #:tests? #f
+      #:phases
+      #~(modify-phases %standard-phases
+          (replace 'configure
+            (lambda* (#:key inputs #:allow-other-keys)
+              (for-each (lambda (binary)
+                          (substitute* "marginaltool"
+                            ((binary) (search-input-file inputs (string-append "/bin/" binary)))))
+                        '("openssl" "pkcs11-tool"))))
+          (delete 'build))))
+    (inputs
+     (list openssl opensc))
+    (propagated-inputs
+     (list `(,python "tk")))
+    (home-page "https://sr.ht/~jetomit/marginaltool")
+    (synopsis "MargTools replacement")
+    (description "Python script to replace MargTools.
+Can be used to sign documents with GovernmentConnect.")
+    (license license:unlicense)))
+
+marginaltool