From 9b0afb0d289c58233bbc1764097b88e7fab3724f Mon Sep 17 00:00:00 2001
From: Alex Kost <alezost@gmail.com>
Date: Fri, 14 Aug 2015 10:47:10 +0300
Subject: emacs: Add popup interface for guix commands.

* emacs/guix-command.el: New file.
* emacs.am (ELFILES): Add it.
* doc/emacs.texi (Emacs Initial Setup): Mention 'magit-popup' library.
  (Emacs Popup Interface): New node.
  (Emacs Interface): Add it.
* doc/guix.texi (Top): Likewise.
---
 doc/emacs.texi | 44 ++++++++++++++++++++++++++++++++++++++++++++
 doc/guix.texi  |  1 +
 2 files changed, 45 insertions(+)

(limited to 'doc')

diff --git a/doc/emacs.texi b/doc/emacs.texi
index 5fa15d7783..db2e657d27 100644
--- a/doc/emacs.texi
+++ b/doc/emacs.texi
@@ -9,6 +9,7 @@ Guix convenient and fun.
 @menu
 * Initial Setup: Emacs Initial Setup.	Preparing @file{~/.emacs}.
 * Package Management: Emacs Package Management.	Managing packages and generations.
+* Popup Interface: Emacs Popup Interface.	Magit-like interface for guix commands.
 * Prettify Mode: Emacs Prettify.	Abbreviating @file{/gnu/store/@dots{}} file names.
 * Completions: Emacs Completions.       Completing @command{guix} shell command.
 @end menu
@@ -35,6 +36,12 @@ later;
 @uref{http://nongnu.org/geiser/, Geiser}, version 0.3 or later: it is
 used for interacting with the Guile process.
 
+@item
+@uref{https://github.com/magit/magit/, magit-popup library}.  You
+already have this library if you use Magit 2.1.0 or later.  This library
+is an optional dependency---it is required only for @kbd{M-x@tie{}guix}
+command (@pxref{Emacs Popup Interface}).
+
 @end itemize
 
 When it is done ``guix.el'' may be configured by requiring a special
@@ -486,6 +493,43 @@ Various settings for ``info'' buffers.
 @end table
 
 
+@node Emacs Popup Interface
+@section Popup Interface
+
+If you ever used Magit, you know what ``popup interface'' is
+(@pxref{Top,,, magit-popup, Magit-Popup User Manual}).  Even if you are
+not acquainted with Magit, there should be no worries as it is very
+intuitive.
+
+So @kbd{M-x@tie{}guix} command provides a top-level popup interface for
+all available guix commands.  When you select an option, you'll be
+prompted for a value in the minibuffer.  Many values have completions,
+so don't hesitate to press @key{TAB} key.  Multiple values (for example,
+packages or lint checkers) should be separated by commas.
+
+After specifying all options and switches for a command, you may choose
+one of the available actions.  The following default actions are
+available for all commands:
+
+@itemize
+
+@item
+Run the command in the Guix REPL.  It is faster than running
+@code{guix@tie{}@dots{}} command directly in shell, as there is no
+need to run another guile process and to load required modules there.
+
+@item
+Run the command in a shell buffer.  You can set
+@code{guix-run-in-shell-function} variable to fine tune the shell buffer
+you want to use.
+
+@item
+Add the command line to the kill ring (@pxref{Kill Ring,,, emacs, The
+GNU Emacs Manual}).
+
+@end itemize
+
+
 @node Emacs Prettify
 @section Guix Prettify Mode
 
diff --git a/doc/guix.texi b/doc/guix.texi
index cb5bbab2a0..89291273c4 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -112,6 +112,7 @@ Emacs Interface
 
 * Initial Setup: Emacs Initial Setup.	Preparing @file{~/.emacs}.
 * Package Management: Emacs Package Management.	Managing packages and generations.
+* Popup Interface: Emacs Popup Interface.	Magit-like interface for guix commands.
 * Prettify Mode: Emacs Prettify.	Abbreviating @file{/gnu/store/@dots{}} file names.
 * Completions: Emacs Completions.       Completing @command{guix} shell command.
 
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