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03/03: emacs: Add 'guix-devel-build-package-definition'.
From: |
Alex Kost |
Subject: |
03/03: emacs: Add 'guix-devel-build-package-definition'. |
Date: |
Wed, 23 Sep 2015 10:38:06 +0000 |
alezost pushed a commit to branch master
in repository guix.
commit 1a6c4c2f376e4ca4dc119d10b2671ea2f3b1fa28
Author: Alex Kost <address@hidden>
Date: Fri Jul 24 20:31:11 2015 +0300
emacs: Add 'guix-devel-build-package-definition'.
Suggested by Ludovic Courtès <address@hidden>.
* emacs/guix-guile.el (guix-guile-definition-regexp): New variable.
(guix-guile-current-definition, guix-guile-boolean): New functions.
* emacs/guix-devel.el: Require 'guix-base'.
(guix-devel-repl-processes): New variable.
(guix-devel-setup-repl, guix-devel-setup-repl-maybe): New functions.
(guix-devel-build-package-definition): New command.
* doc/emacs.texi (Emacs Development): Document it.
---
doc/emacs.texi | 24 ++++++++++++++++++++++++
emacs/guix-devel.el | 40 ++++++++++++++++++++++++++++++++++++++++
emacs/guix-guile.el | 22 ++++++++++++++++++++++
3 files changed, 86 insertions(+), 0 deletions(-)
diff --git a/doc/emacs.texi b/doc/emacs.texi
index d44d329..b6f2701 100644
--- a/doc/emacs.texi
+++ b/doc/emacs.texi
@@ -659,4 +659,28 @@ want to use a module it defines, so you switch to the
Geiser REPL and
write @code{,use (some module)} there. You may just use this command
instead (@code{guix-devel-use-module}).
address@hidden C-c . b
+Build a package defined by the current variable definition. The
+building process is run in the current Geiser REPL. If you modified the
+current package definition, don't forget to reevaluate it before calling
+this command---for example, with @kbd{C-M-x} (@pxref{To eval or not to
+eval,,, geiser, Geiser User Manual})
+(@code{guix-devel-build-package-definition}).
+
@end table
+
+Unluckily, there is a limitation related to long-running REPL commands.
+When there is a running process in a Geiser REPL, you are not supposed
+to evaluate anything in a scheme buffer, because this will ``freeze''
+the REPL: it will stop producing any output (however, the evaluating
+process will continue---you will just not see any progress anymore). Be
+aware: even moving the point in a scheme buffer may ``break'' the REPL
+if Autodoc (@pxref{Autodoc and friends,,, geiser, Geiser User Manual})
+is enabled (which is the default).
+
+So you have to postpone editing your scheme buffers until the running
+evaluation will be finished in the REPL.
+
+Alternatively, to avoid this limitation, you may just run another Geiser
+REPL, and while something is being evaluated in the previous REPL, you
+can continue editing a scheme file with the help of the current one.
diff --git a/emacs/guix-devel.el b/emacs/guix-devel.el
index ed82e33..6de49be 100644
--- a/emacs/guix-devel.el
+++ b/emacs/guix-devel.el
@@ -27,6 +27,7 @@
(require 'guix-guile)
(require 'guix-geiser)
(require 'guix-utils)
+(require 'guix-base)
(defgroup guix-devel nil
"Settings for Guix development utils."
@@ -55,8 +56,47 @@ Interactively, use the module defined by the current scheme
file."
(interactive)
(guix-copy-as-kill (guix-guile-current-module)))
+(defun guix-devel-setup-repl (&optional repl)
+ "Setup REPL for using `guix-devel-...' commands."
+ (guix-devel-use-modules "(guix monad-repl)"
+ "(guix scripts)"
+ "(guix store)")
+ ;; Without this workaround, the build output disappears. See
+ ;; <https://github.com/jaor/geiser/issues/83> for details.
+ (guix-geiser-eval-in-repl
+ "(current-build-output-port (current-error-port))"
+ repl 'no-history 'no-display))
+
+(defvar guix-devel-repl-processes nil
+ "List of REPL processes configured by `guix-devel-setup-repl'.")
+
+(defun guix-devel-setup-repl-maybe (&optional repl)
+ "Setup (if needed) REPL for using `guix-devel-...' commands."
+ (let ((process (get-buffer-process (or repl (guix-geiser-repl)))))
+ (when (and process
+ (not (memq process guix-devel-repl-processes)))
+ (guix-devel-setup-repl repl)
+ (push process guix-devel-repl-processes))))
+
+(defun guix-devel-build-package-definition ()
+ "Build a package defined by the current top-level variable definition."
+ (interactive)
+ (let ((def (guix-guile-current-definition)))
+ (guix-devel-setup-repl-maybe)
+ (guix-devel-use-modules (guix-guile-current-module))
+ (when (or (not guix-operation-confirm)
+ (guix-operation-prompt (format "Build '%s'?" def)))
+ (guix-geiser-eval-in-repl
+ (concat ",run-in-store "
+ (guix-guile-make-call-expression
+ "build-package" def
+ "#:use-substitutes?" (guix-guile-boolean
+ guix-use-substitutes)
+ "#:dry-run?" (guix-guile-boolean guix-dry-run)))))))
+
(defvar guix-devel-keys-map
(let ((map (make-sparse-keymap)))
+ (define-key map (kbd "b") 'guix-devel-build-package-definition)
(define-key map (kbd "k") 'guix-devel-copy-module-as-kill)
(define-key map (kbd "u") 'guix-devel-use-module)
map)
diff --git a/emacs/guix-guile.el b/emacs/guix-guile.el
index c21d27f..35a97d7 100644
--- a/emacs/guix-guile.el
+++ b/emacs/guix-guile.el
@@ -26,6 +26,23 @@
(require 'geiser-guile)
+(defvar guix-guile-definition-regexp
+ (rx bol "(define"
+ (zero-or-one "*")
+ (zero-or-one "-public")
+ (one-or-more space)
+ (zero-or-one "(")
+ (group (one-or-more (or word (syntax symbol)))))
+ "Regexp used to find the guile definition.")
+
+(defun guix-guile-current-definition ()
+ "Return string with name of the current top-level guile definition."
+ (save-excursion
+ (beginning-of-defun)
+ (if (looking-at guix-guile-definition-regexp)
+ (match-string-no-properties 1)
+ (error "Couldn't find the current definition"))))
+
(defun guix-guile-current-module ()
"Return a string with the current guile module.
Return nil, if current buffer does not define a module."
@@ -37,6 +54,11 @@ Return nil, if current buffer does not define a module."
(re-search-forward geiser-guile--module-re nil t))
(match-string-no-properties 1))))
+(defun guix-guile-boolean (arg)
+ "Return a string with guile boolean value.
+Transform elisp ARG (nil or non-nil) to the guile boolean (#f or #t)."
+ (concat "#" (prin1-to-string (if arg 't 'f))))
+
(defun guix-guile-make-call-expression (proc &rest args)
"Return \"(PROC ARGS ...)\" string.
PROC and ARGS should be strings."