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03/04: emacs: Enable 'guix-build-log-minor-mode' in shell buffers.

From: Alex Kost
Subject: 03/04: emacs: Enable 'guix-build-log-minor-mode' in shell buffers.
Date: Mon, 02 Nov 2015 13:00:58 +0000

alezost pushed a commit to branch master
in repository guix.

commit f4044b586d04c197325dec36eb35e77fe05028c7
Author: Alex Kost <address@hidden>
Date:   Sat Oct 31 22:01:45 2015 +0300

    emacs: Enable 'guix-build-log-minor-mode' in shell buffers.
    * emacs/guix-build-log.el (guix-build-log-minor-mode-activate): New 
      (guix-build-log-minor-mode-activate-maybe): New function.
    * emacs/guix-init.el: Add it to 'shell-mode-hook'.
    * doc/emacs.texi (Emacs Build Log): Mention it.
 doc/emacs.texi          |   12 +++++-------
 emacs/guix-build-log.el |   13 +++++++++++++
 emacs/guix-init.el      |    1 +
 3 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/doc/emacs.texi b/doc/emacs.texi
index 03dc951..e4608f0 100644
--- a/doc/emacs.texi
+++ b/doc/emacs.texi
@@ -646,13 +646,11 @@ Toggle (show/hide) the bodies of all build phases.
 @end table
 There is also @kbd{M-x guix-build-log-minor-mode} which also provides
-the same highlighting.  And as it is a minor mode, it can be enabled in
-any buffer.  For example, if you are building some package in a shell
-buffer (@pxref{Interactive Shell,,, emacs, The GNU Emacs Manual}), you
-may enable @command{guix-build-log-minor-mode} to make it more colorful.
-Guix build output is rather specific, so this new highlighting shouldn't
-conflict with the existing one.  This mode also provides the same key
-bindings as the major mode, but prefixed with @kbd{C-c}.
+the same highlighting and the same key bindings as the major mode, but
+prefixed with @kbd{C-c}.  By default, this minor mode is enabled in
+shell buffers (@pxref{Interactive Shell,,, emacs, The GNU Emacs
+Manual}).  If you don't like it, set
address@hidden to nil.
 @node Emacs Completions
diff --git a/emacs/guix-build-log.el b/emacs/guix-build-log.el
index c649468..3f78121 100644
--- a/emacs/guix-build-log.el
+++ b/emacs/guix-build-log.el
@@ -102,6 +102,12 @@
   "Face for the number of seconds for a phase."
   :group 'guix-build-log-faces)
+(defcustom guix-build-log-minor-mode-activate t
+  "If non-nil, then `guix-build-log-minor-mode' is automatically
+activated in `shell-mode' buffers."
+  :type 'boolean
+  :group 'guix-build-log)
 (defcustom guix-build-log-mode-hook '()
   "Hook run after `guix-build-log-mode' is entered."
   :type 'hook
@@ -347,6 +353,13 @@ programmatically using hooks:
+(defun guix-build-log-minor-mode-activate-maybe ()
+  "Activate `guix-build-log-minor-mode' depending on
+`guix-build-log-minor-mode-activate' variable."
+  (when guix-build-log-minor-mode-activate
+    (guix-build-log-minor-mode)))
 (add-to-list 'auto-mode-alist
              ;; Regexp for log files (usually placed in /var/log/guix/...)
              (cons (rx "/guix/drvs/" (= 2 alnum) "/" (= 30 alnum)
diff --git a/emacs/guix-init.el b/emacs/guix-init.el
index 4b3d9c2..1612dee 100644
--- a/emacs/guix-init.el
+++ b/emacs/guix-init.el
@@ -15,5 +15,6 @@ avoid loading autoloads of Emacs packages installed in
   (guix-emacs-load-autoloads 'all))
 (add-hook 'scheme-mode-hook 'guix-devel-activate-mode-maybe)
+(add-hook 'shell-mode-hook 'guix-build-log-minor-mode-activate-maybe)
 (provide 'guix-init)

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