gnu: Add elixir-phoenix-live-view.

* gnu/packages/elixir-web.scm (elixir-phoenix-live-view): New variable.

Change-Id: I8e2af57ba8337cbf2fc3e0e2abd3f6a469e66385
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/elixir-web.scm

@@ -434,6 +434,58 @@ framework.")
     (home-page "https://hexdocs.pm/phoenix_live_reload/")
     (license license:expat)))
 
+(define-public elixir-phoenix-live-view
+  (package
+    (name "elixir-phoenix-live-view")
+    (version "1.1.13")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (hexpm-uri "phoenix_live_view" version))
+       (sha256
+        (base32 "1v7p6q0lz9fzfyj9w4kwbyqi1vqdzsdllaw3xvw9whdqfcsyj1lx"))))
+    (build-system mix-build-system)
+    (arguments
+     ;; Tests fail with:
+     ;;
+     ;; [warning] Could not start Phoenix live-reload because we cannot listen
+     ;; to the file system.
+     ;; You don't need to worry! This is an optional feature used during
+     ;; development to refresh your browser when you save files and it does not
+     ;; affect production.
+     (list #:tests? #f))
+    (native-inputs
+     (list elixir-html-entities
+           elixir-phoenix-live-reload))
+    (propagated-inputs
+     (list elixir-floki
+           elixir-jason
+           elixir-phoenix
+           elixir-phoenix-html
+           elixir-phoenix-template
+           elixir-phoenix-view
+           elixir-plug
+           erlang-telemetry))
+    (synopsis "Rich, real-time user experiences with server-rendered HTML")
+    (description "LiveView brings a unified experience to building web
+applications.  You no longer have to split work between client and server,
+across different toolings, layers, and abstractions.  Instead, LiveView
+enriches the server with a declarative and powerful model while keeping your
+code closer to your data (and ultimately your source of truth):
+
+@itemize
+@item Declarative server side rendering
+@item Rich templating language
+@item Diffs over the wire
+@item Live form validation
+@item File uploads with progress indicators
+@item Optimistic updates and transitions
+@item Live navigation
+@item Latency simulator
+@end itemize")
+    (home-page "https://hexdocs.pm/phoenix_live_view/")
+    (license license:expat)))
+
 (define-public elixir-phoenix-pubsub
   (package
     (name "elixir-phoenix-pubsub")