Add guix.scm for reproducible builds

guix.scm

@@ -0,0 +1,60 @@
+(use-modules (guix packages)
+             ((guix licenses) #:prefix license:)
+             (guix build-system python)
+             (gnu packages)
+             (gnu packages pkg-config)
+             (gnu packages python-xyz)
+             (gnu packages python))
+
+;; this file allows reproducible builds
+;; execute `guix environment -l guix.scm' to get an working environment
+
+
+(define-public python-mkdocs-material-6
+  (package
+    (name "python-mkdocs-material")
+    (version "6.1.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri
+        (pypi-uri "mkdocs-material" version))
+       (sha256
+        (base32 "10dppchwm2sb8a06352kra9igghw6d1k0mbdnrb0jc1mx9mh2nz1"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         ;; Requirement mkdocs-material-extensions
+         ;; in-turn requires mkdocs-material. This causes
+         ;; circular dependency, so we remove this requirement.
+         (add-after 'unpack 'patch-requirements
+           (lambda _
+             (substitute* "requirements.txt"
+               (("mkdocs-material-extensions.*$") "")))))))
+    (propagated-inputs
+     `(("python-markdown" ,python-markdown)
+       ("python-mkdocs" ,python-mkdocs)
+       ("python-pygments" ,python-pygments)
+       ("python-pymdown-extensions"
+        ,python-pymdown-extensions)))
+    (home-page "https://squidfunk.github.io/mkdocs-material/")
+    (synopsis "Material Design theme for MkDocs")
+    (description "This package provides a theme plugin for the static site
+generator MkDocs.")
+    (license license:expat)))
+
+
+(package
+  (name "dokumentation")
+  (version "0.1")
+  (source #f)
+  (build-system python-build-system)
+  (propagated-inputs
+    `(("python@3" ,python-3)
+      ("python-mkdocs" ,python-mkdocs)
+      ("python-mkdocs-material@6" ,python-mkdocs-material-6)))
+  (synopsis "")
+  (description "")
+  (home-page "")
+  (license #f))