gnu: Add font-space-grotesk.

* gnu/packages/fonts.scm (font-space-grotesk): New variable.

Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr>

gnu/packages/fonts.scm

@@ -1393,6 +1393,43 @@ programming.  Iosevka is completely generated from its source code.")
      "Sarasa Gothic is a programming font based on Iosevka and Source Han Sans,
 most CJK characters are same height, and double width as ASCII characters.")))
 
+(define-public font-space-grotesk
+  (package
+    (name "font-space-grotesk")
+    (version "2.0.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/floriankarsten/space-grotesk")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1aiivn0rl7ydiyqvsr0fa2hx82h3br3x48w3100fcly23n0fdcby"))))
+    (build-system font-build-system)
+    ;; TODO: Package fontmake and gftools and build from source.
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'install-license-files
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (doc (string-append out "/share/doc/" ,name "-" ,version)))
+               (install-file "OFL.txt" doc)
+               #t))))))
+    (home-page "https://floriankarsten.github.io/space-grotesk/")
+    (synopsis "Proportional variant of the fixed-width Space Mono family")
+    (description
+     "Space Grotesk is a proportional sans-serif typeface variant based on Colophon
+Foundry's fixed-width Space Mono family.  It retains the monospace's idiosyncratic
+details while optimizing for improved readability at non-display sizes.
+
+Space Grotesk includes Latin Vietnamese, Pinyin, and all Western, Central, and
+South-Eastern European language support, as well as several OpenType features:
+old-style and tabular figures, superscript and subscript numerals, fractions,
+and stylistic alternates.")
+    (license license:silofl1.1)))
+
 (define-public font-go
   (let ((commit "f03a046406d4d7fbfd4ed29f554da8f6114049fc")
         (revision "1"))