Enable helm-follow-mode feature for helm-git-grep

README.md

@@ -40,6 +40,7 @@
     * [Customization](#customization)
       * [Variables](#variables)
         * [helm\-git\-grep\-sources](#helm-git-grep-sources)
+        * [helm\-follow\-mode\-persistent](#helm-follow-mode-persistent)
         * [helm\-git\-grep\-candidate\-number\-limit](#helm-git-grep-candidate-number-limit)
         * [helm\-git\-grep\-max\-length\-history](#helm-git-grep-max-length-history)
         * [helm\-git\-grep\-use\-ioccur\-style\-keys](#helm-git-grep-use-ioccur-style-keys)
@@ -167,6 +168,17 @@ If you don't want to search in submodules, Set only `helm-git-grep-source` like
 
     (setq helm-git-grep-sources '(helm-git-grep-source))
 
+#### `helm-follow-mode-persistent`
+
+Please set `helm-follow-mode-persistent` to non-nil if you want to use `helm-follow-mode` by default.
+
+You must set it before loading `helm-git-grep.el`.
+
+``` lisp
+(custom-set-variables
+ '(helm-follow-mode-persistent t))
+```
+
 #### `helm-git-grep-candidate-number-limit`
 
 **(Default: `300`)**

helm-git-grep.el

@@ -667,11 +667,14 @@ You can save your results in a helm-git-grep-mode buffer, see below.
 
 (defvar helm-git-grep-source
   (helm-make-source "Git Grep" 'helm-git-grep-class
-    :candidates-process 'helm-git-grep-process))
+    :candidates-process 'helm-git-grep-process
+    :follow (and helm-follow-mode-persistent 1)))
 
 (defvar helm-git-grep-submodule-source
   (helm-make-source "Git Submodule Grep" 'helm-git-grep-class
-    :candidates-process 'helm-git-grep-submodule-grep-process))
+    :candidates-process 'helm-git-grep-submodule-grep-process
+    :follow (and helm-follow-mode-persistent 1)))
+
 
 (defun helm-git-grep-1 (&optional input)
   "Execute helm git grep.