gnu: Add biber.

* gnu/packages/tex.scm (biber): New variable.

gnu/packages/tex.scm

@@ -52,6 +52,8 @@ (define-module (gnu packages tex)
   #:use-module (gnu packages ruby)
   #:use-module (gnu packages shells)
   #:use-module (gnu packages base)
+  #:use-module (gnu packages web)
+  #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg)
   #:use-module (gnu packages xdisorg)
   #:use-module (gnu packages zip)
@@ -426,6 +428,86 @@ (define-public perl-text-bibtex
 values (strings, macros, or numbers) pasted together.")
     (license (package-license perl))))
 
+(define-public biber
+  (package
+    (name "biber-next")
+    (version "2.6")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/plk/biber/archive/v"
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "158smzgjhjvyabdv97si5q88zjj5l8j1zbfnddvzy6fkpfhskgkp"))))
+    (build-system perl-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'install 'wrap-programs
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (perl5lib (getenv "PERL5LIB")))
+               (wrap-program (string-append out "/bin/biber")
+                 `("PERL5LIB" ":" prefix
+                   (,(string-append perl5lib ":" out
+                                    "/lib/perl5/site_perl")))))
+             #t)))))
+    (inputs
+     `(("perl-autovivification" ,perl-autovivification)
+       ("perl-class-accessor" ,perl-class-accessor)
+       ("perl-data-dump" ,perl-data-dump)
+       ("perl-data-compare" ,perl-data-compare)
+       ("perl-data-uniqid" ,perl-data-uniqid)
+       ("perl-datetime-format-builder" ,perl-datetime-format-builder)
+       ("perl-datetime-calendar-julian" ,perl-datetime-calendar-julian)
+       ("perl-file-slurp" ,perl-file-slurp)
+       ("perl-ipc-cmd" ,perl-ipc-cmd)
+       ("perl-ipc-run3" ,perl-ipc-run3)
+       ("perl-list-allutils" ,perl-list-allutils)
+       ("perl-list-moreutils" ,perl-list-moreutils)
+       ("perl-mozilla-ca" ,perl-mozilla-ca)
+       ("perl-regexp-common" ,perl-regexp-common)
+       ("perl-log-log4perl" ,perl-log-log4perl)
+       ;; We cannot use perl-unicode-collate here, because otherwise the
+       ;; hardcoded hashes in the tests would differ.  See
+       ;; https://mail-archive.com/debian-bugs-dist@lists.debian.org/msg1469249.html
+       ;;("perl-unicode-collate" ,perl-unicode-collate)
+       ("perl-unicode-normalize" ,perl-unicode-normalize)
+       ("perl-unicode-linebreak" ,perl-unicode-linebreak)
+       ("perl-encode-eucjpascii" ,perl-encode-eucjpascii)
+       ("perl-encode-jis2k" ,perl-encode-jis2k)
+       ("perl-encode-hanextra" ,perl-encode-hanextra)
+       ("perl-xml-libxml" ,perl-xml-libxml)
+       ("perl-xml-libxml-simple" ,perl-xml-libxml-simple)
+       ("perl-xml-libxslt" ,perl-xml-libxslt)
+       ("perl-xml-writer" ,perl-xml-writer)
+       ("perl-sort-key" ,perl-sort-key)
+       ("perl-text-csv" ,perl-text-csv)
+       ("perl-text-csv-xs" ,perl-text-csv-xs)
+       ("perl-text-roman" ,perl-text-roman)
+       ("perl-uri" ,perl-uri)
+       ("perl-text-bibtex" ,perl-text-bibtex)
+       ("perl-libwww" ,perl-libwww)
+       ("perl-lwp-protocol-https" ,perl-lwp-protocol-https)
+       ("perl-business-isbn" ,perl-business-isbn)
+       ("perl-business-issn" ,perl-business-issn)
+       ("perl-business-ismn" ,perl-business-ismn)
+       ("perl-lingua-translit" ,perl-lingua-translit)))
+    (native-inputs
+     `(("perl-config-autoconf" ,perl-config-autoconf)
+       ("perl-extutils-libbuilder" ,perl-extutils-libbuilder)
+       ("perl-module-build" ,perl-module-build)
+       ;; for tests
+       ("perl-file-which" ,perl-file-which)
+       ("perl-test-more" ,perl-test-most) ; FIXME: "more" would be sufficient
+       ("perl-test-differences" ,perl-test-differences)))
+    (home-page "http://biblatex-biber.sourceforge.net/")
+    (synopsis "Backend for the BibLaTeX citation management tool")
+    (description "Biber is a BibTeX replacement for users of biblatex.  Among
+other things it comes with full Unicode support.")
+    (license license:artistic2.0)))
+
 
 (define-public rubber
   (package