gnu: Add emacs-json-reformat.

* gnu/packages/patches/emacs-json-reformat-fix-tests.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add this.
* gnu/packages/emacs.scm (emacs-json-reformat): New variable.

gnu/local.mk

@@ -17,6 +17,7 @@
 # Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
 # Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
 # Copyright © 2018 Amirouche Boubekki <amirouche@hypermove.net>
+# Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 #
 # This file is part of GNU Guix.
 #
@@ -615,6 +616,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/einstein-build.patch			\
   %D%/packages/patches/emacs-exec-path.patch			\
   %D%/packages/patches/emacs-fix-scheme-indent-function.patch	\
+  %D%/packages/patches/emacs-json-reformat-fix-tests.patch	\
   %D%/packages/patches/emacs-highlight-stages-add-gexp.patch	\
   %D%/packages/patches/emacs-scheme-complete-scheme-r5rs-info.patch	\
   %D%/packages/patches/emacs-source-date-epoch.patch		\

gnu/packages/emacs.scm

@@ -26,7 +26,7 @@
 ;;; Copyright © 2017 George Clemmer <myglc2@gmail.com>
 ;;; Copyright © 2017 Feng Shu <tumashu@163.com>
 ;;; Copyright © 2017 Jan Nieuwenhuizen <janneke@gnu.org>
-;;; Copyright © 2017 Oleg Pykhalov <go.wigust@gmail.com>
+;;; Copyright © 2017, 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2017 Mekeor Melire <mekeor.melire@gmail.com>
 ;;; Copyright © 2017 Peter Mikkelsen <petermikkelsen10@gmail.com>
 ;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -5950,6 +5950,53 @@ (define-public emacs-disable-mouse
 running a customisable handler command (@code{ignore} by default). ")
     (license license:gpl3+)))
 
+(define-public emacs-json-reformat
+  (package
+    (name "emacs-json-reformat")
+    (version "0.0.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/gongo/json-reformat/archive/"
+                           version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "11fbq4scrgr7m0iwnzcrn2g7xvqwm2gf82sa7zy1l0nil7265p28"))
+       (patches (search-patches "emacs-json-reformat-fix-tests.patch"))))
+    (build-system emacs-build-system)
+    (propagated-inputs `(("emacs-undercover" ,emacs-undercover)))
+    (inputs
+     `(("emacs-dash" ,emacs-dash)         ; for tests
+       ("emacs-shut-up" ,emacs-shut-up))) ; for tests
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-before 'install 'check
+           (lambda* (#:key inputs #:allow-other-keys)
+             (zero? (system* "emacs" "--batch" "-L" "."
+                             "-L" (string-append
+                                   (assoc-ref inputs "emacs-undercover")
+                                   "/share/emacs/site-lisp/guix.d/undercover-"
+                                   ,(package-version emacs-undercover))
+                             "-L" (string-append
+                                   (assoc-ref inputs "emacs-dash")
+                                   "/share/emacs/site-lisp/guix.d/dash-"
+                                   ,(package-version emacs-dash))
+                             "-L" (string-append
+                                   (assoc-ref inputs "emacs-shut-up")
+                                   "/share/emacs/site-lisp/guix.d/shut-up-"
+                                   ,(package-version emacs-shut-up))
+                             "-l" "test/test-helper.el"
+                             "-l" "test/json-reformat-test.el"
+                             "-f" "ert-run-tests-batch-and-exit"))
+             #t)))))
+    (home-page "https://github.com/gongo/json-reformat")
+    (synopsis "Reformatting tool for JSON")
+    (description "@code{json-reformat} provides a reformatting tool for
+@url{http://json.org/, JSON}.")
+    (license license:gpl3+)))
+
 (define-public emacs-json-snatcher
   (package
     (name "emacs-json-snatcher")

gnu/packages/patches/emacs-json-reformat-fix-tests.patch

@@ -0,0 +1,32 @@
+Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
+
+This patch fixes tests for Emacs 25.
+
+Upstream bug URL:
+
+https://github.com/gongo/json-reformat/issues/33
+
+diff --git a/test/json-reformat-test.el b/test/json-reformat-test.el
+index 7de3be1..b4a4dde 100644
+--- a/test/json-reformat-test.el
++++ b/test/json-reformat-test.el
+@@ -58,7 +58,7 @@
+ (ert-deftest json-reformat-test:string-to-string ()
+   (should (string= "\"foobar\"" (json-reformat:string-to-string "foobar")))
+   (should (string= "\"fo\\\"o\\nbar\"" (json-reformat:string-to-string "fo\"o\nbar")))
+-  (should (string= "\"\\u2661\"" (json-reformat:string-to-string "\u2661")))
++  (should (string= "\"♡\"" (json-reformat:string-to-string "\u2661")))
+ 
+   (should (string= "\"^(amq\\\\.gen.*|amq\\\\.default)$\"" (json-reformat:string-to-string "^(amq\\.gen.*|amq\\.default)$")))
+   )
+@@ -148,6 +148,6 @@ bar\"" (json-reformat:string-to-string "fo\"o\nbar")))
+ [{ foo : \"bar\" }, { \"foo\" : \"baz\" }]") ;; At 3 (line)
+         (json-reformat-region (point-min) (point-max)))
+       (should (string=
+-               "JSON parse error [Reason] Bad string format: \"doesn't start with '\\\"'!\" [Position] In buffer, line 3 (char 6)"
++               "JSON parse error [Reason] Bad string format: \"doesn't start with \`\\\"'!\" [Position] In buffer, line 3 (char 6)"
+                message-string))
+       )))
+-- 
+2.15.1
+