Merge branch 'master' into core-updates

1 files changed, 728 insertions, 21 deletions

diff --git a/gnu/packages/elm.scm b/gnu/packages/elm.scm
index ca7c61041b..74a43a4ff2 100644
--- a/gnu/packages/elm.scm
+++ b/gnu/packages/elm.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
+;;; Copyright © 2022 Philip McGrath <philip@philipmcgrath.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -24,18 +25,25 @@
   #:use-module (gnu packages haskell-xyz)
   #:use-module (gnu packages haskell-web)
   #:use-module (guix build-system haskell)
+  #:use-module (guix build-system elm)
+  #:use-module (guix gexp)
   #:use-module (guix git-download)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages))
 
-;; The full elm build calls out to itself via Template Haskell to
-;; compile the elm reactor web app. elm reactor isn't required to
-;; compile elm applications, so we take this part out of this
-;; bootstrap package.
-(define-public elm-compiler
+;; The `elm` build usually calls out to itself via Template Haskell to compile
+;; the `elm reactor` web app (which depends on additional Elm packages) and
+;; embeds the static files into itself.  The reactor isn't required to compile
+;; Elm applications, so we want to skip it for the bootstrap package, but we
+;; also want to be able to enable it once we can build it.  We patch Elm to
+;; instead look for the files on disk relative to the executable and to have
+;; `elm reactor` exit with a useful error message if they aren't there.
+(define %reactor-root-base
+  "share/elm/reactor-")
+(define-public elm-sans-reactor
   (package
-    (name "elm-compiler")
-    (version "0.19.0")
+    (name "elm-sans-reactor")
+    (version "0.19.1")
     (source
      (origin
        (method git-fetch)
@@ -44,24 +52,30 @@
              (url "https://github.com/elm/compiler/")
              (commit version)))
        (sha256
-        (base32 "0s93z9vr0vp5w894ghc5s34nsq09sg1msf59zfiba87sid5vgjqy"))
+        (base32 "1rdg3xp3js9xadclk3cdypkscm5wahgsfmm4ldcw3xswzhw6ri8w"))
        (patches
-        (search-patches "elm-compiler-disable-reactor.patch"
-                        "elm-compiler-fix-map-key.patch"))))
+        (search-patches "elm-reactor-static-files.patch"
+                        "elm-offline-package-registry.patch"))))
     (build-system haskell-build-system)
     (arguments
-     `(#:phases
-       (modify-phases %standard-phases
-         (add-before 'configure 'update-constraints
-           (lambda _
-             (substitute* "elm.cabal"
-               (("(ansi-terminal|containers|network|http-client|language-glsl)\\s+[^,]+" all dep)
-                dep)))))))
+     (list
+      #:configure-flags
+      #~(list (string-append "--ghc-option=-DGUIX_REACTOR_STATIC_REL_ROOT="
+                             "\"../" #$%reactor-root-base
+                             #$(package-version this-package)
+                             "\""))
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-before 'configure 'update-constraints
+            (lambda _
+              (substitute* "elm.cabal"
+                (("(ansi-terminal|containers|network|http-client|language-glsl)\\s+[^,]+" all dep)
+                 dep)))))))
     (inputs
      (list ghc-ansi-terminal
            ghc-ansi-wl-pprint
            ghc-edit-distance
-           ghc-file-embed
+           ghc-filelock
            ghc-http
            ghc-http-client
            ghc-http-client-tls
@@ -79,9 +93,702 @@
            ghc-vector
            ghc-zip-archive))
     (home-page "https://elm-lang.org")
+    (synopsis "Minimal variant of @command{elm}")
+    (description
+     "This package provides a version of the Elm compiler without support for
+the @command{elm reactor} development command.")
+    (license license:bsd-3)))
+
+(define-public elm
+  (package
+    (name "elm")
+    (version (package-version elm-sans-reactor))
+    (source (package-source elm-sans-reactor))
+    (native-inputs (list elm-sans-reactor))
+    (inputs (list elm-sans-reactor
+                  elm-browser
+                  elm-core
+                  elm-html
+                  elm-http
+                  elm-json
+                  elm-project-metadata-utils
+                  elm-svg
+                  elm-explorations-markdown))
+    (build-system elm-build-system)
+    (arguments
+     (list
+      #:modules
+      `((srfi srfi-26)
+        ,@%elm-default-modules)
+      #:phases
+      #~(modify-phases %standard-phases
+          (delete 'stage)
+          (replace 'configure
+            (lambda* (#:key native-inputs inputs #:allow-other-keys)
+              (with-directory-excursion "reactor"
+                (patch-application-dependencies))))
+          (replace 'build
+            (lambda* (#:key native-inputs inputs #:allow-other-keys)
+              (with-directory-excursion "reactor"
+                (invoke (search-input-file (or native-inputs inputs)
+                                           "/bin/elm")
+                        "make"
+                        "--optimize"
+                        "src/NotFound.elm"
+                        "src/Errors.elm"
+                        "src/Index.elm"))))
+          (replace 'install
+            (lambda* (#:key inputs #:allow-other-keys)
+              (let* ((out-dir #$output)
+                     (bin-dir (string-append out-dir "/bin"))
+                     (reactor-dir (string-append out-dir
+                                                 "/"
+                                                 #$%reactor-root-base
+                                                 (getenv "GUIX_ELM_VERSION")))
+                     (reactor-subdir (string-append reactor-dir "/_elm")))
+                ;; We can't use a symlink here because Haskell's
+                ;; `getExecutablePath` follows all symlinks.
+                ;; Guix can make it a hard link later.
+                (install-file (search-input-file inputs ;; NOT native-inputs
+                                                 "/bin/elm")
+                              bin-dir)
+                (install-file "reactor/assets/favicon.ico" reactor-dir)
+                (for-each (cut install-file <> reactor-subdir)
+                          '("reactor/elm.js"
+                            "reactor/assets/styles.css"
+                            ;; TODO: these are source-code-pro v1.017 and
+                            ;; source-sans-pro v1.050: there may be breaking
+                            ;; changes in Guix's existing
+                            ;; font-adobe-source-{code,sans}-pro packages
+                            "reactor/assets/source-code-pro.ttf"
+                            "reactor/assets/source-sans-pro.ttf")))))
+          (delete 'validate-compiled))))
+    (home-page "https://elm-lang.org")
     (synopsis "Programming language for Web applications")
     (description
-     "This package provides Elm, a statically-typed functional programming
-language for the browser.  It includes commands for developers such as
-@command{elm make} and @command{elm repl}.")
+     "Elm is a statically-typed, purely-functional programming language for
+the browser.  The @command{elm} exectable includes commands for developers
+such as @command{elm make} and @command{elm repl}.")
+    (license license:bsd-3)))
+
+;; The 'elm' package used to be called 'elm-compiler'.
+(define-public elm-compiler
+  (deprecated-package "elm-compiler" elm))
+
+(define-public elm-core
+  (package
+    (name "elm-core")
+    (version "1.0.5")
+    (source
+     (elm-package-origin
+      "elm/core"
+      version
+      (base32 "0g3xbi8f9k5q45s95nx3jfvzwdf4b2n63a52wr4027d2xjx0pmvl")))
+    (build-system elm-build-system)
+    (inputs (list elm-json-bootstrap))
+    (arguments
+     (list #:implicit-elm-package-inputs? #f))
+    (home-page "https://package.elm-lang.org/packages/elm/core/1.0.5")
+    (synopsis "Elm's standard libraries")
+    (description "Every Elm project needs this package!")
+    (license license:bsd-3)))
+
+(define-public elm-json
+  (package
+    (name "elm-json")
+    (version "1.1.3")
+    (source
+     (elm-package-origin
+      "elm/json"
+      version
+      (base32 "1hx986yqw1v2bpkrh6brszl8n8awwg1s8zi7v5qg0p1rqwvjlicz")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-core))
+    (arguments
+     (list #:implicit-elm-package-inputs? #f))
+    (home-page "https://package.elm-lang.org/packages/elm/json/1.1.3")
+    (synopsis "Encode and decode JSON values in Elm")
+    (description
+     "This package helps you convert between Elm values and JSON values.")
+    (license license:bsd-3)))
+
+(define-public elm-json-bootstrap
+  ;; elm/core doesn't depend on elm/json,
+  ;; but elm-build-system's strategy for building it
+  ;; (and everything else) does
+  (hidden-package
+   (package
+     (inherit elm-json)
+     (name "elm-json-bootstrap")
+     (properties '((upstream-name . "elm/json")))
+     (propagated-inputs '())
+     (arguments
+      (list #:phases
+            #~(modify-phases %standard-phases
+                (delete 'configure)
+                (delete 'build)
+                (delete 'validate-compiled))
+            #:implicit-elm-package-inputs? #f)))))
+
+(define-public elm-virtual-dom
+  (package
+    (name "elm-virtual-dom")
+    (version "1.0.3")
+    (source
+     (elm-package-origin
+      "elm/virtual-dom"
+      version
+      (base32 "1bjyyws7l0qvgp4ixzaimwriq86ncx5bvrzaksvjx3pv7bmkbx69")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-json elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/virtual-dom/1.0.2")
+    (synopsis
+     "Elm's low-level virtual DOM implementation")
+    (description
+     "This package provides a virtual DOM implementation that backs Elm's
+core libraries for HTML and SVG.  You should almost certainly use those
+higher-level libraries directly.")
+    (properties '((upstream-name . "elm/virtual-dom")))
+    (license license:bsd-3)))
+
+(define-public elm-html
+  (package
+    (name "elm-html")
+    (version "1.0.0")
+    (source
+     (elm-package-origin
+      "elm/html"
+      version
+      (base32 "15k1679ja57vvlpinpv06znmrxy09lbhzfkzdc89i01qa8c4gb4a")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-virtual-dom
+           elm-json
+           elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/html/1.0.0")
+    (synopsis "Fast HTML, rendered with virtual DOM diffing")
+    (description "This package provides Elm's HTML rendering library.")
+    (license license:bsd-3)))
+
+(define-public elm-svg
+  (package
+    (name "elm-svg")
+    (version "1.0.1")
+    (source
+     (elm-package-origin
+      "elm/svg"
+      version
+      (base32 "1iqsc3p129j56lp1y3z3mfc6x1shvrmx3pkhri2777ylhyw90qvl")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-html
+           elm-virtual-dom
+           elm-json
+           elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/svg/1.0.1")
+    (synopsis "Fast SVG, rendered with virtual DOM diffing")
+    (description
+     "This package provides Elm's @acronym{SVG, Scalable Vector Graphics}
+library.")
+    (license license:bsd-3)))
+
+(define-public elm-time
+  (package
+    (name "elm-time")
+    (version "1.0.0")
+    (source
+     (elm-package-origin
+      "elm/time"
+      version
+      (base32 "0wqa2vhl1zf8z0j2yd3yjwfhr0dydfns43bbzll3k4rhnjadxr1l")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/time/1.0.0")
+    (synopsis
+     "POSIX time and time zones in Elm")
+    (description
+     "This package provides an Elm library for working with POSIX times, time
+zones, formatting, and the clock.")
+    (license license:bsd-3)))
+
+(define-public elm-url
+  (package
+    (name "elm-url")
+    (version "1.0.0")
+    (source
+     (elm-package-origin
+      "elm/url"
+      version
+      (base32 "1f2ij4i7zmijnj2i50qf19lpkr14bhms8dkq029inb5mydi9f8gs")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/url/1.0.0")
+    (synopsis
+     "Create and parse URLs in Elm")
+    (description
+     "This package helps you:
+
+@enumerate
+@item
+build new URLs; and
+
+@item
+parse existing URLs into nice Elm data structures.
+@end enumerate
+
+Use it for HTTP and for @dfn{routing} in @acronym{SPAs, single-page apps}.")
+    (license license:bsd-3)))
+
+(define-public elm-browser
+  (package
+    (name "elm-browser")
+    (version "1.0.2")
+    (source
+     (elm-package-origin
+      "elm/browser"
+      version
+      (base32 "0863nw2hhbpm3s03lm1imi5x28wwknzrwg2p79s5mydgvdvgwjf0")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-virtual-dom
+           elm-url
+           elm-time
+           elm-json
+           elm-html
+           elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/browser/1.0.2")
+    (synopsis
+     "Run Elm in browsers")
+    (description
+     "This package allows you to create Elm programs that run in browsers,
+with access to browser history for @acronym{SPAs, single-page apps}.")
+    (license license:bsd-3)))
+
+(define-public elm-bytes
+  (package
+    (name "elm-bytes")
+    (version "1.0.8")
+    (source
+     (elm-package-origin
+      "elm/bytes"
+      version
+      (base32 "0n411j2cyz9m241q6vszfzpq3fraradwal5m0gigp2505mdfpz3x")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/bytes/1.0.8")
+    (synopsis "Work with sequences of bytes in Elm")
+    (description "This package provides an Elm library for working with
+densely packed sequences of bytes, such as @code{ArrayBuffer}, typed arrays,
+and @code{DataView}.")
+    (license license:bsd-3)))
+
+(define-public elm-file
+  (package
+    (name "elm-file")
+    (version "1.0.5")
+    (source
+     (elm-package-origin
+      "elm/file"
+      version
+      (base32 "0aimgicrdpys0v89m2wjx413561zil14cczjh6mkn9jcgckx6yng")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-time
+           elm-json
+           elm-core
+           elm-bytes))
+    (home-page "https://package.elm-lang.org/packages/elm/file/1.0.5")
+    (synopsis "Work with files in Elm")
+    (description "This package enables Elm programs to select files, download
+files, and work with file content.")
+    (license license:bsd-3)))
+
+(define-public elm-http
+  (package
+    (name "elm-http")
+    (version "2.0.0")
+    (source
+     (elm-package-origin
+      "elm/http"
+      version
+      (base32 "0mfbz0lkfidmq5xpv5csw8943q0yrpvj0rwd2vb0gc8rbsfc9dg8")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-json
+           elm-file
+           elm-core
+           elm-bytes))
+    (home-page "https://package.elm-lang.org/packages/elm/http/2.0.0")
+    (synopsis "Make HTTP requests in Elm")
+    (description "This package enables Elm programs to make HTTP requests and
+talk to servers.")
+    (license license:bsd-3)))
+
+(define-public elm-parser
+  (package
+    (name "elm-parser")
+    (version "1.1.0")
+    (source
+     (elm-package-origin
+      "elm/parser"
+      version
+      (base32 "06xx29rmagc5r45qfpvrd393lz83ylngidfp08432f1qc8y6r3lh")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/parser/1.1.0")
+    (synopsis
+     "Parsing library for Elm")
+    (description
+     "Regular expressions are quite confusing and difficult to use.  This
+library provides a coherent alternative that handles more cases and produces
+clearer code.  It is focused on simplicity and great error messages.")
+    (license license:bsd-3)))
+
+(define-public elm-project-metadata-utils
+  (package
+    (name "elm-project-metadata-utils")
+    (version "1.0.2")
+    (source
+     (elm-package-origin
+      "elm/project-metadata-utils"
+      version
+      (base32 "1wj7chfy4knwwyc3k0hy431c80hs7hc686qsr34ayn8gip73x2jj")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-parser
+           elm-json
+           elm-core))
+    (home-page
+     "https://package.elm-lang.org/packages/elm/project-metadata-utils/1.0.2")
+    (synopsis "Work with @file{elm.json} and @file{docs.json} files in Elm")
+    (description
+     "This package is meant for people creating Elm tooling, like editor
+plugins.  If you just want to make stuff in Elm, there is nothing here for
+you.")
+    (properties '((upstream-name . "elm/project-metadata-utils")))
+    (license license:bsd-3)))
+
+(define-public elm-explorations-markdown
+  (package
+    (name "elm-explorations-markdown")
+    (version "1.0.0")
+    (source
+     (elm-package-origin
+      "elm-explorations/markdown"
+      version
+      (base32 "1f57ikdpbbhchcpwj32216gxjxijrc3sdpg27s1cgzia9pnkqk6p")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-html elm-core))
+    (home-page
+     "https://package.elm-lang.org/packages/elm-explorations/markdown/1.0.0")
+    (synopsis "Fast markdown parsing and rendering in Elm")
+    (description
+     "This package is for markdown parsing and rendering in Elm.  It is based
+on the @code{marked} project, which focuses on speed.")
+    (license license:bsd-3)))
+
+(define-public elm-todomvc
+  (let ((commit "f236e7e56941c7705aba6e42cb020ff515fe3290")
+        (revision "1"))
+    (package
+      (name "elm-todomvc")
+      (version (git-version "1" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/evancz/elm-todomvc")
+               (commit commit)))
+         (sha256
+          (base32 "0g37bglzshkf79s4n7aq9ib44h5qn8ng7n72sh2xslgd20h05nfw"))
+         (file-name (git-file-name name version))))
+      (inputs (list elm-browser elm-core elm-html elm-json))
+      (build-system elm-build-system)
+      (arguments
+       (list
+        #:modules
+        `((srfi srfi-26)
+          ,@%elm-default-modules)
+        #:phases
+        #~(modify-phases %standard-phases
+            (delete 'stage)
+            (replace 'configure
+              patch-application-dependencies)
+            (replace 'build
+              (lambda* (#:key native-inputs inputs #:allow-other-keys)
+                (invoke (search-input-file (or native-inputs inputs)
+                                           "/bin/elm")
+                        "make"
+                        "src/Main.elm"
+                        "--output=elm.js")))
+            (replace 'install
+              (lambda args
+                (let* ((out-dir #$output)
+                       (dest-dir
+                        (string-append out-dir
+                                       "/share/"
+                                       (strip-store-file-name out-dir))))
+                  (for-each (cut install-file <> dest-dir)
+                            `("elm.js"
+                              "index.html"
+                              "style.css"
+                              "README.md")))))
+            (delete 'validate-compiled))))
+      (home-page "https://github.com/evancz/elm-todomvc")
+      (synopsis "TodoMVC in Elm")
+      (description "This is the official Elm implementation of
+@url{https://todomvc.com,TodoMVC}, a simple to-do--list application used to
+compare front-end web frameworks.")
+      (license license:bsd-3))))
+
+(define-public elm-debois-elm-dom
+  (package
+    (name "elm-debois-elm-dom")
+    (version "1.3.0")
+    (source
+     (elm-package-origin
+      "debois/elm-dom"
+      version
+      (base32 "0w4z4w6ip118lk5g80w6mbbfxhfmivbmdkdm6wsmk63x85gscmqx")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-json elm-html elm-core))
+    (home-page "https://package.elm-lang.org/packages/debois/elm-dom/1.3.0")
+    (synopsis "DOM traversal for Elm event-handlers")
+    (description
+     "This package provides a library for reading information off the DOM.
+Use this if you need to discover geometry information (width, position, etc.)
+of rendered elements.")
+    (license license:asl2.0)))
+
+(define-public elm-random
+  (package
+    (name "elm-random")
+    (version "1.0.0")
+    (source
+     (elm-package-origin
+      "elm/random"
+      version
+      (base32 "0z0znkwfs35xiabk6pa9yqwsq03jssgd7jmsj1kk000mikfm7f39")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-time elm-core))
+    (home-page "https://package.elm-lang.org/packages/elm/random/1.0.0")
+    (synopsis "Generate random numbers and values in Elm")
+    (description
+     "Need to generate random numbers?  How about random game boards?  Or
+random positions in 3D space?  This is the package for you!")
+    (license license:bsd-3)))
+
+(define-public elm-explorations-test
+  (package
+    (name "elm-explorations-test")
+    (version "1.2.2")
+    (source
+     (elm-package-origin
+      "elm-explorations/test"
+      version
+      (base32 "0kw32x0lr6nh5j9xk56vgg7x7c705g38grghh7cdp49frwdd6w3l")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-virtual-dom
+           elm-random
+           elm-json
+           elm-html
+           elm-core))
+    (home-page
+     "https://package.elm-lang.org/packages/elm-explorations/test/1.2.2")
+    (synopsis "Testing framework for Elm")
+    (description "This package enables writing unit and fuzz tests for Elm
+code.  To actually run the tests, you need the command-line tool from
+@url{https://github.com/rtfeldman/node-test-runner}, which has not yet been
+packaged for Guix.")
+    (license license:bsd-3)))
+
+(define-public elm-danhandrea-elm-date-format
+  (package
+    (name "elm-danhandrea-elm-date-format")
+    (version "2.0.1")
+    (source
+     (elm-package-origin
+      "danhandrea/elm-date-format"
+      version
+      (base32 "03mglzyywij5sm56m7q2jhhbsv7f9rdirgwmq0q41ghir81bzpv6")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-time elm-core))
+    (inputs (list elm-explorations-test))
+    (home-page
+     "https://package.elm-lang.org/packages/danhandrea/elm-date-format/2.0.1")
+    (synopsis "Date formatting for Elm")
+    (description "This package enhances @code{elm/time} with support for
+format strings and internationalization of dates.")
+    (license license:bsd-3)))
+
+(define-public elm-danhandrea-elm-time-extra
+  (package
+    (name "elm-danhandrea-elm-time-extra")
+    (version "1.1.0")
+    (source
+     (elm-package-origin
+      "danhandrea/elm-time-extra"
+      version
+      (base32 "0z13q8x148d5amcc89f846yzql89n9gyan8fr48y91dhhn7vxibf")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-time elm-core))
+    (inputs
+     (list elm-explorations-test
+           elm-danhandrea-elm-date-format))
+    (home-page
+     "https://package.elm-lang.org/packages/danhandrea/elm-time-extra/1.1.0")
+    (synopsis "Extra utilities for POSIX time in Elm")
+    (description "This package enhances @code{elm/time} with extra utilities
+for working with POSIX times.")
+    (license license:bsd-3)))
+
+(define-public elm-justinmimbs-date
+  (package
+    (name "elm-justinmimbs-date")
+    (version "4.0.1")
+    (source
+     (elm-package-origin
+      "justinmimbs/date"
+      version
+      (base32 "13mf97137f0yb3gx1mxbya2y70qciah4hp5bcnpj8166vgzb7l3l")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-time
+           elm-parser
+           elm-core))
+    (home-page "https://package.elm-lang.org/packages/justinmimbs/date/4.0.1")
+    (synopsis "Work with dates without times or zones in Elm")
+    (description
+     "This Elm package provides a simple @code{Date} type for working with
+dates without times or zones.")
+    (license license:bsd-3)))
+
+(define-public elm-justinmimbs-time-extra
+  (package
+    (name "elm-justinmimbs-time-extra")
+    (version "1.1.1")
+    (source
+     (elm-package-origin
+      "justinmimbs/time-extra"
+      version
+      (base32 "1gmgvzlpzkysvm86d0md75ply10pz28bg699m4763frss0jvrngh")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-justinmimbs-date
+           elm-time
+           elm-core))
+    (home-page
+     "https://package.elm-lang.org/packages/justinmimbs/time-extra/1.1.1")
+    (synopsis "Extra functions for POSIX times in Elm")
+    (description
+     "This package provides extra functions for working with @code{Posix}
+times from @code{elm/time}.")
+    (license license:bsd-3)))
+
+(define-public elm-myrho-elm-round
+  (package
+    (name "elm-myrho-elm-round")
+    (version "1.0.4")
+    (source
+     (elm-package-origin
+      "myrho/elm-round"
+      version
+      (base32 "0y3j43wr815cvwz5310zalnqzpg3hw8h127zjjlf6x8ynapc2mdb")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-core))
+    (inputs (list elm-explorations-test))
+    (home-page "https://package.elm-lang.org/packages/myrho/elm-round/1.0.4")
+    (synopsis "Flexible rounding of Elm @code{Float}s")
+    (description
+     "This library converts a @code{Float} to a @code{String} with ultimate
+control how many digits after the decimal point are shown and how the
+remaining digits are rounded.  It rounds, floors and ceils the @dfn{common}
+way (i.e. half up) or the @dfn{commerical} way (ie. half away from zero).")
+    (license license:bsd-3)))
+
+(define-public elm-ryannhg-date-format
+  (package
+    (name "elm-ryannhg-date-format")
+    (version "2.3.0")
+    (source
+     (elm-package-origin
+      "ryannhg/date-format"
+      version
+      (base32 "0razh6im5qwmla10knk67j8w11mqlqlyfnclykbfl06kaksfm3sp")))
+    (build-system elm-build-system)
+    (propagated-inputs (list elm-time elm-core))
+    (inputs (list elm-explorations-test))
+    (home-page
+     "https://package.elm-lang.org/packages/ryannhg/date-format/2.3.0")
+    (synopsis "Reliable advanced dates formatting for Elm")
+    (description
+     "This package provides Elm programs with reliable, powerful tools for
+formatting dates and times.  It uses Elm's type system instead of format
+strings, which makes formatting code more readable and can catch some errors
+at compile time.")
+    (license license:bsd-3)))
+
+(define-public elm-terezka-intervals
+  (package
+    (name "elm-terezka-intervals")
+    (version "2.0.1")
+    (source
+     (elm-package-origin
+      "terezka/intervals"
+      version
+      (base32 "0h3im58sa6awyppch1v8ppcrzwc5h48yn45crx98m8zs4isx91lj")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-ryannhg-date-format
+           elm-myrho-elm-round
+           elm-justinmimbs-time-extra
+           elm-time
+           elm-svg
+           elm-json
+           elm-html
+           elm-core
+           elm-danhandrea-elm-time-extra))
+    (inputs (list elm-explorations-test))
+    (home-page "https://package.elm-lang.org/packages/terezka/intervals/2.0.1")
+    (synopsis "Produce nice intervals for Elm charts")
+    (description
+     "This package provides an Elm library for producing nice intervals for
+charts.  It's useful in combination with @code{terezka/elm-charts}.  When I
+say ``nice'', I just mean that I try to calculate intervals which begin with
+10, 5, 3, 2, or 1 (adjusted to magnitude, of course!).  For dates, I try to
+hit whole days, weeks, and months or hours, minutes, and seconds.")
+    (license license:bsd-3)))
+
+(define-public elm-terezka-elm-charts
+  (package
+    (name "elm-terezka-elm-charts")
+    (version "3.0.0") ;; NOTE! Tags like 5.1.0 are from an OLDER version.
+    (source
+     (elm-package-origin
+      "terezka/elm-charts"
+      version
+      (base32 "17syq73jwldc7fk7snm5k8s85nsvxyprb34rs1rwjsapc1vii7hc")))
+    (build-system elm-build-system)
+    (propagated-inputs
+     (list elm-terezka-intervals
+           elm-ryannhg-date-format
+           elm-time
+           elm-svg
+           elm-json
+           elm-html
+           elm-core
+           elm-debois-elm-dom))
+    (home-page
+     "https://elm-charts.org")
+    (synopsis "SVG chart components in Elm")
+    (description
+     "Make SVG charts in all Elm.  The package can draw charts at a variety of
+different levels of customization, from basic charts with standard features to
+very custom styles.  The library also allows including your very own SVG
+elements while still easily utilizing the coordinate system calculated from
+your data, as well as editing the SVGs made by the package.  It has great
+support for interactivity, layering different charts, and adding irregular
+details.")
     (license license:bsd-3)))