gnu: Add erlang-binpp.

* gnu/packages/erlang-xyz.scm (erlang-binpp): New variable.
* gnu/packages/patches/erlang-binpp-disable-failing-tests.patch: Disable
failing tests.

Change-Id: I2653319c16c254aaab65bc780eec1f725e180675
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/erlang-xyz.scm

@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2024, 2025 Igor Goryachev <igor@goryachev.org>
+;;; Copyright © 2025 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -32,6 +33,28 @@
   #:use-module (guix packages)
   #:use-module (guix utils))
 
+(define-public erlang-binpp
+  (package
+    (name "erlang-binpp")
+    (version "1.1.1")
+    (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/jtendo/binpp")
+               (commit version)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "1dv7mg0j6q4vs4bcp14df3q1y3if58dskca98wmnsrbwkibkn6vp"))
+         (patches (search-patches "erlang-binpp-disable-failing-tests.patch"))))
+    (build-system rebar-build-system)
+    (synopsis "Erlang Binary Pretty Printer")
+    (description "@code{Binpp} will use @code{io:format} to output the formatted
+binary by default.  However there are options making @code{pprint} functions
+return formatted data instead of performing direct IO write.")
+    (home-page "https://hexdocs.pm/binpp/")
+    (license license:wtfpl2)))
+
 (define-public erlang-luerl
   (package
     (name "erlang-luerl")

gnu/packages/patches/erlang-binpp-disable-failing-tests.patch

@@ -0,0 +1,73 @@
+From 4ee37e2617e3de954113d64046fce7566dd39910 Mon Sep 17 00:00:00 2001
+From: Giacomo Leidi <goodoldpaul@autistici.org>
+Date: Tue, 17 Sep 2024 03:11:47 +0200
+Subject: [PATCH] These tests fail on current Guix.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+    binpp: -print_bucket_test_/0-fun-4- (Print 00FF)...*failed*
+in function binpp:'-print_bucket_test_/0-fun-4-'/3 (/tmp/guix-build-erlang-binpp-1.1.1.drv-0/src/binpp.erl, line 290)
+in call from eunit_test:run_testfun/1 (eunit_test.erl, line 72)
+in call from eunit_proc:run_test/1 (eunit_proc.erl, line 544)
+in call from eunit_proc:with_timeout/3 (eunit_proc.erl, line 369)
+in call from eunit_proc:handle_test/2 (eunit_proc.erl, line 527)
+in call from eunit_proc:tests_inorder/3 (eunit_proc.erl, line 469)
+in call from eunit_proc:with_timeout/3 (eunit_proc.erl, line 359)
+in call from eunit_proc:run_group/2 (eunit_proc.erl, line 583)
+**error:{assertEqual,[{module,binpp},
+              {line,290},
+              {expression,"F ( I )"},
+              {expected,["00 FF                                           ",
+                         32,".ÿ","\n"]},
+              {value,["00 FF                                           ",32,
+                      ".ÿ",10]}]}
+  output:<<"">>
+
+    binpp: -print_bucket_test_/0-fun-4- (Print 41414141414141414141414141414141)...*failed*
+in function binpp:'-print_bucket_test_/0-fun-4-'/3 (/tmp/guix-build-erlang-binpp-1.1.1.drv-0/src/binpp.erl, line 290)
+in call from eunit_test:run_testfun/1 (eunit_test.erl, line 72)
+in call from eunit_proc:run_test/1 (eunit_proc.erl, line 544)
+in call from eunit_proc:with_timeout/3 (eunit_proc.erl, line 369)
+in call from eunit_proc:handle_test/2 (eunit_proc.erl, line 527)
+in call from eunit_proc:tests_inorder/3 (eunit_proc.erl, line 469)
+in call from eunit_proc:with_timeout/3 (eunit_proc.erl, line 359)
+in call from eunit_proc:run_group/2 (eunit_proc.erl, line 583)
+**error:{assertEqual,[{module,binpp},
+              {line,290},
+              {expression,"F ( I )"},
+              {expected,["41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 ",
+                         32,"AAAAAAAAAAAAAAAA","\n"]},
+              {value,["41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 ",32,
+                      "AAAAAAAAAAAAAAAA",10]}]}
+  output:<<"">>
+---
+ src/binpp.erl | 12 ------------
+ 1 file changed, 12 deletions(-)
+
+diff --git a/src/binpp.erl b/src/binpp.erl
+index ec5f8cf..4ec98e4 100644
+--- a/src/binpp.erl
++++ b/src/binpp.erl
+@@ -278,18 +278,6 @@ diff_test_() ->
+     [ { <<"Diff">>, fun() -> ?assertEqual({ok, R}, F(I1, I2)) end }
+              || { {I1, I2}, R } <- Tests ].
+ 
+-print_bucket_test_() ->
+-    F = fun print_bucket/1,
+-    Tests = [
+-            { ["00", "FF"],
+-              ["00 FF                                           ", ?SPACE, [?SPECIAL, 255], "\n"] },
+-
+-            { ["41" || _ <- lists:seq(1, 16) ],
+-              ["41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 41 ", ?SPACE, [$A || _ <- lists:seq(1, 16)], "\n"] }
+-        ],
+-    [ { iolist_to_binary(["Print ", I]), fun() -> ?assertEqual(R, F(I)) end }
+-             || { I, R } <- Tests ].
+-
+ print_buckets_test_() ->
+     F = fun print_buckets/1,
+     Tests = [
+-- 
+2.46.0
+