[bug#27449] [PATCH] gnu: Add js-respond.

[bug#27449] [PATCH] gnu: Add js-respond.

[Ricardo Wurmus]

* gnu/packages/javascript.scm (js-respond): New variable.
---
 gnu/packages/javascript.scm | 51 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/gnu/packages/javascript.scm b/gnu/packages/javascript.scm
index 6746ad1d2..43bc0bbf6 100644
--- a/gnu/packages/javascript.scm
+++ b/gnu/packages/javascript.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>
+;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -83,3 +84,53 @@ and AsciiMath notation that works in all modern browsers.  It requires no
 plugins or software to be installed on the browser.  So the page author can
 write web documents that include mathematics and be confident that readers will
 be able to view it naturally and easily.")))
+
+(define-public js-respond
+  (package
+    (name "js-respond")
+    (version "1.4.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/scottjehl/Respond/"
+                                  "archive/" version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0ds1ya2a185jp93mdn07159c2x8zczwi960ykrawpp62bwk2n93d"))))
+    (build-system trivial-build-system)
+    (arguments
+     `(#:modules ((guix build utils))
+       #:builder
+       (begin
+         (use-modules (guix build utils)
+                      (ice-9 match)
+                      (ice-9 popen)
+                      (srfi srfi-26))
+         (set-path-environment-variable
+          "PATH" '("bin") (map (match-lambda
+                                 ((_ . input)
+                                  input))
+                               %build-inputs))
+         (let ((install-directory (string-append %output
+                                                 "/share/javascript/respond/")))
+           (system* "tar" "xvf"
+                    (assoc-ref %build-inputs "source")
+                    "--strip" "1")
+           (mkdir-p install-directory)
+           (let* ((file "src/respond.js")
+                  (installed (string-append install-directory "respond.min.js")))
+             (let ((minified (open-pipe* OPEN_READ "uglify-js" file)))
+               (call-with-output-file installed
+                 (cut dump-port minified <>)))))
+         #t)))
+    (home-page "https://github.com/scottjehl/Respond")
+    (native-inputs
+     `(("uglify-js" ,uglify-js)
+       ("source" ,source)
+       ("gzip" ,gzip)
+       ("tar" ,tar)))
+    (synopsis "Polyfill for min/max-width CSS3 Media Queries")
+    (description "The goal of this script is to provide a fast and lightweight
+script to enable responsive web designs in browsers that don't support CSS3
+Media Queries.")
+    (license license:expat)))
-- 
2.13.0

[bug#27449] [PATCH] gnu: Add js-respond.

[Ludovic Courtès]

Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> skribis:

> * gnu/packages/javascript.scm (js-respond): New variable.

LGTM.

> +    (build-system trivial-build-system)
> +    (arguments
> +     `(#:modules ((guix build utils))
> +       #:builder
> +       (begin
> +         (use-modules (guix build utils)
> +                      (ice-9 match)
> +                      (ice-9 popen)
> +                      (srfi srfi-26))
> +         (set-path-environment-variable
> +          "PATH" '("bin") (map (match-lambda
> +                                 ((_ . input)
> +                                  input))
> +                               %build-inputs))
> +         (let ((install-directory (string-append %output
> +                                                 "/share/javascript/respond/")))
> +           (system* "tar" "xvf"
> +                    (assoc-ref %build-inputs "source")
> +                    "--strip" "1")
> +           (mkdir-p install-directory)
> +           (let* ((file "src/respond.js")
> +                  (installed (string-append install-directory "respond.min.js")))
> +             (let ((minified (open-pipe* OPEN_READ "uglify-js" file)))
> +               (call-with-output-file installed
> +                 (cut dump-port minified <>)))))
> +         #t)))

Should we turn this into a ‘javascript-build-system’?

Thanks,
Ludo’.

bug#27449: [PATCH] gnu: Add js-respond.

[Ricardo Wurmus]

Ludovic Courtès <ludo@gnu.org> writes:

> Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> skribis:
>
>> * gnu/packages/javascript.scm (js-respond): New variable.
>
> LGTM.

Thanks.  Pushed to master with b37b48f81.

>> +    (build-system trivial-build-system)
>> +    (arguments
>> +     `(#:modules ((guix build utils))
>> +       #:builder
>> +       (begin
>> +         (use-modules (guix build utils)
>> +                      (ice-9 match)
>> +                      (ice-9 popen)
>> +                      (srfi srfi-26))
>> +         (set-path-environment-variable
>> +          "PATH" '("bin") (map (match-lambda
>> +                                 ((_ . input)
>> +                                  input))
>> +                               %build-inputs))
>> +         (let ((install-directory (string-append %output
>> +                                                 "/share/javascript/respond/")))
>> +           (system* "tar" "xvf"
>> +                    (assoc-ref %build-inputs "source")
>> +                    "--strip" "1")
>> +           (mkdir-p install-directory)
>> +           (let* ((file "src/respond.js")
>> +                  (installed (string-append install-directory "respond.min.js")))
>> +             (let ((minified (open-pipe* OPEN_READ "uglify-js" file)))
>> +               (call-with-output-file installed
>> +                 (cut dump-port minified <>)))))
>> +         #t)))
>
> Should we turn this into a ‘javascript-build-system’?

This is a simplified version of what js-mathjax does, so that seems like
a good template for minifying JavaScript files.  I’m just not sure how
to generalise this, because projects don’t always put all their
unminified .js files in a single directory and we can’t just minify all
.js files, because

  a) they might already be minified,
  b) they might require compilation / concatenation.

Maybe we should wait until we have some more experience with how other
JS projects handle this.  I’m going to package a few more JS things for
r-shiny; if a pattern should pop up I’m going to poor it into a build
system.

-- Ricardo

[bug#27449] [PATCH] gnu: Add js-respond.

[Ludovic Courtès]

Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> skribis:

> This is a simplified version of what js-mathjax does, so that seems like
> a good template for minifying JavaScript files.  I’m just not sure how
> to generalise this, because projects don’t always put all their
> unminified .js files in a single directory and we can’t just minify all
> .js files, because
>
>   a) they might already be minified,
>   b) they might require compilation / concatenation.
>
> Maybe we should wait until we have some more experience with how other
> JS projects handle this.  I’m going to package a few more JS things for
> r-shiny; if a pattern should pop up I’m going to poor it into a build
> system.

If we can’t come up with a full build system, perhaps a (guix build
javascript) module could at least provide a ‘minify’ procedure that
invokes uglify, or something like that?

Ludo’.