01/01: gnu: Add emacs-undohist-el.

[guix-commits]

wigust pushed a commit to branch master
in repository guix.

commit 3dbd240937a7fb4322db21bc1bf6189a1a512223
Author: Brian Leung <address@hidden>
Date:   Thu Mar 28 05:30:06 2019 +0100

    gnu: Add emacs-undohist-el.
    
    * gnu/packages/patches/emacs-undohist-ignored.patch: New file.
    * gnu/local.mk (dist_patch_DATA): Add this.
    * gnu/packages/emacs-xyz.scm (emacs-undohist-el): New variable.
    
    Signed-off-by: Oleg Pykhalov <address@hidden>
---
 gnu/local.mk                                      |  1 +
 gnu/packages/emacs-xyz.scm                        | 23 +++++++++++++++++++
 gnu/packages/patches/emacs-undohist-ignored.patch | 27 +++++++++++++++++++++++
 3 files changed, 51 insertions(+)

diff --git a/gnu/local.mk b/gnu/local.mk
index 54882b3..cec746b 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -751,6 +751,7 @@ dist_patch_DATA =                                           
\
   %D%/packages/patches/emacs-scheme-complete-scheme-r5rs-info.patch    \
   %D%/packages/patches/emacs-source-date-epoch.patch           \
   %D%/packages/patches/emacs-realgud-fix-configure-ac.patch    \
+  %D%/packages/patches/emacs-undohist-ignored.patch    \
   %D%/packages/patches/emacs-wordnut-require-adaptive-wrap.patch       \
   %D%/packages/patches/emacs-zones-called-interactively.patch  \
   %D%/packages/patches/enlightenment-fix-setuid-path.patch     \
diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 17cbbf4..6de4fc4 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -4535,6 +4535,29 @@ Emacs default configuration in uncontroversial ways that 
nearly everyone can
 agree upon.")
     (license license:gpl3+)))
 
+(define-public emacs-undohist-el
+  (let ((commit "d2239a5f736724ceb9e3b6bcaa86f4064805cda0")
+        (revision "1"))
+    (package
+      (name "emacs-undohist-el")
+      (version (git-version "0" revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/m2ym/undohist-el";)
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32
+           "1c0daw246ky7b1x5b8h55x79pl1pjqk1k348l487bdd8zdj4w9wx"))))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/m2ym/undohist-el";)
+      (synopsis "Save undo history between sessions")
+      (description "This package allows persistent use of undo history for
+individual file buffers.")
+      (license license:gpl3+))))
+
 (define-public emacs-eprime
   (let ((commit "17a481af26496be91c07139a9bfc05cfe722506f"))
     (package
diff --git a/gnu/packages/patches/emacs-undohist-ignored.patch 
b/gnu/packages/patches/emacs-undohist-ignored.patch
new file mode 100644
index 0000000..c1ad827
--- /dev/null
+++ b/gnu/packages/patches/emacs-undohist-ignored.patch
@@ -0,0 +1,27 @@
+From 52bfd419bf9022726048f818d955b8ea10a16d5c Mon Sep 17 00:00:00 2001
+From: Patrick Mosby <address@hidden>
+Date: Mon, 7 Sep 2015 09:05:56 +0200
+Subject: [PATCH] Don't save undo file for ignored files.
+
+This fixes #4.
+---
+ undohist.el | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/undohist.el b/undohist.el
+index b184a26..de60356 100644
+--- a/undohist.el
++++ b/undohist.el
+@@ -164,7 +164,8 @@ To use undohist, you just call this function."
+                 undohist-ignored-files)))
+ 
+ (defun undohist-save-1 ()
+-  (when (consp buffer-undo-list)
++  (when (and (consp buffer-undo-list)
++             (undohist-recover-file-p (buffer-file-name (current-buffer))))
+     (let ((file (make-undohist-file-name (buffer-file-name)))
+           (contents `((digest . ,(md5 (current-buffer)))
+                       (undo-list . ,(undohist-encode buffer-undo-list)))))
+-- 
+2.21.0
+