[bug#46170] [PATCH] gnu: Add licenseheaders.

[Tanguy Le Carrour <tanguy@bioneland.org>]

* gnu/packages/license.scm (licenseheaders): New variable.
---
 gnu/packages/license.scm | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/gnu/packages/license.scm b/gnu/packages/license.scm
index 369426768b..568275e510 100644
--- a/gnu/packages/license.scm
+++ b/gnu/packages/license.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com>
 ;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2020, 2021 Michael Rohleder <mike@rohleder.de>
+;;; Copyright © 2021 Tanguy Le Carrour <tanguy@bioneland.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -205,3 +206,37 @@ tools that have a lot more features and functionality surrounding the analysis
 and inspection of copyright and licenses in software projects.  This one is
 designed to be simple.")
     (license (list asl2.0 gpl3+))))
+
+(define-public licenseheaders
+  (package
+    (name "licenseheaders")
+    (version "0.8.6")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "licenseheaders" version))
+       (sha256
+        (base32
+         "073xcm10gyg5kcxqmbsyaz9sr0slbdwgr0r9qanch0zl8i0z9259"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         ;; Reported upstream:
+         ;; <https://github.com/johann-petrak/licenseheaders/issues/47>.
+         (add-after 'unpack 'patch-code
+           (lambda _
+             (substitute* "licenseheaders.py"
+               (("\\\"filenames\\\": \\[\\\"CMakeLists.txt\\\"\\],")
+                "\"filenames\": [\"CMakeLists.txt\"], \n        \"extensions\": [],"))
+             #t)))))
+    (propagated-inputs
+     `(("python-regex" ,python-regex)))
+    (home-page
+     "http://github.com/johann-petrak/licenseheaders")
+    (synopsis
+     "Add or change license headers for all files in a directory")
+    (description
+     "A Python 3 tool to update, change or add license headers to all files
+ of any of the supported types (see below) in or below some directory.")
+    (license expat)))
-- 
2.30.0