gnu: Add emacs-git-auto-commit-mode.

* gnu/packages/emacs.scm (emacs-git-auto-commit-mode): New public variable.

gnu/packages/emacs.scm

@@ -10197,3 +10197,27 @@ in at the first line of the current buffer.  This is useful when you have a
 very long function that spreads more than a screen, and you don't have to
 scroll up to read the function name and then scroll down to original position.")
       (license license:gpl3+))))
+
+(define-public emacs-git-auto-commit-mode
+  (package
+    (name "emacs-git-auto-commit-mode")
+    (version "4.4.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://github.com/ryuslash/git-auto-commit-mode/archive/"
+             version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "04avxmalsl3b7zi2vipfw9rb4wrwysnipsbch96skviql9axk870"))))
+    (build-system emacs-build-system)
+    (home-page "https://github.com/ryuslash/git-auto-commit-mode")
+    (synopsis "Emacs Minor mode to automatically commit and push")
+    (description "@code{git-auto-commit-mode} is an Emacs minor mode that
+tries to commit changes to a file after every save.
+
+When @code{gac-automatically-push-p} is non-nil, it also tries to push to
+the current upstream.")
+    (license license:gpl3+)))