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bug#27840: 26.0.50; vc-git-grep stopped working on git master

From: Dmitry Gutov
Subject: bug#27840: 26.0.50; vc-git-grep stopped working on git master
Date: Thu, 27 Jul 2017 16:23:06 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:55.0) Gecko/20100101 Thunderbird/55.0

On 7/27/17 2:32 AM, address@hidden wrote:

Perhaps we should
instead disable this option by default; when I introduced it, I didn't
think about the fact that grep.el is used for not-quite-grep programs as

Or we can try to think of them as separate. I.e., the patch below also works. And if we want to use the --null option for vc-git-grep, we can construct a derivative alist in vc-git.el.

Up to you, of course.

diff --git a/lisp/vc/vc-git.el b/lisp/vc/vc-git.el
index cc3e295..f52dc6e 100644
--- a/lisp/vc/vc-git.el
+++ b/lisp/vc/vc-git.el
@@ -1443,7 +1443,8 @@ vc-git-grep
            (add-to-history 'grep-history command))))
       (when command
        (let ((default-directory dir)
-             (compilation-environment (cons "PAGER=" compilation-environment)))
+             (compilation-environment (cons "PAGER=" compilation-environment))
+              grep-use-null-filename-separator)
          ;; Setting process-setup-function makes exit-message-function work
          ;; even when async processes aren't supported.
          (compilation-start command 'grep-mode))

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