16/88: gnu: Add emacs-tree-mode.

[Oleg Pykhalov]

wigust pushed a commit to branch master
in repository guix.

commit 0acfc481a4544f738c81ddbf746afa8a7b43f124
Author: Oleg Pykhalov <address@hidden>
Date:   Wed May 2 18:56:57 2018 +0300

    gnu: Add emacs-tree-mode.
    
    * gnu/packages/emacs.scm (emacs-tree-mode): New public variable.
---
 gnu/packages/emacs.scm | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index d8f5ce1..6c44bdf 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -8426,3 +8426,27 @@ orient yourself in the code, and tell which statements 
are at a given level.")
     (description "This package provides an Emacs library to create, query,
 navigate and display hierarchy structures.")
     (license license:gpl3+)))
+
+(define-public emacs-tree-mode
+  (let ((commit "b06078826d5875d74b0e7b7ac47b0d0917610534")
+        (revision "1"))
+    (package
+      (name "emacs-tree-mode")
+      (version (string-append "0.0.1" "-" revision "."
+                              (string-take commit 7)))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/emacsorphanage/tree-mode.git";)
+               (commit commit)))
+         (file-name (string-append name "-" version "-checkout"))
+         (sha256
+          (base32
+           "13bbdhdmqg4x9yghanhr8fsbsxbnypzxdxgicz31sjjm675kpnix"))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/emacsorphanage/tree-mode";)
+      (synopsis "Emacs mode to manage tree widgets")
+      (description
+       "This package provides an Emacs library to manage tree widgets.")
+      (license license:gpl3+))))