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03/05: emacs: Add "Build" button to Package Info.

From: Alex Kost
Subject: 03/05: emacs: Add "Build" button to Package Info.
Date: Tue, 31 May 2016 20:52:07 +0000 (UTC)

alezost pushed a commit to branch master
in repository guix.

commit e98316e69f2480bde709d92ec00db66fd8e66aea
Author: Alex Kost <address@hidden>
Date:   Sun May 15 11:10:04 2016 +0300

    emacs: Add "Build" button to Package Info.
    * emacs/guix-main.scm: Use (guix scripts) module for 'build-package'
    * emacs/guix-base.el (guix-build-package): New procedure.
    * emacs/guix-ui-package.el (guix-package-info-insert-build-button): New
    (guix-package-info-button-functions): New variable.
    (guix-package-info-insert-misc): Insert buttons using it.
 emacs/guix-base.el       |   14 ++++++++++++++
 emacs/guix-main.scm      |    1 +
 emacs/guix-ui-package.el |   28 +++++++++++++++++++++++++++-
 3 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/emacs/guix-base.el b/emacs/guix-base.el
index 9620100..658cfdb 100644
--- a/emacs/guix-base.el
+++ b/emacs/guix-base.el
@@ -231,6 +231,20 @@ Ask a user with PROMPT for continuing an operation."
       :dry-run? (or guix-dry-run 'f))
      nil 'source-download)))
+(defun guix-build-package (package-id &optional prompt)
+  "Build package with PACKAGE-ID.
+Ask a user with PROMPT for continuing the build operation."
+  (when (or (not guix-operation-confirm)
+            (guix-operation-prompt (or prompt "Build package?")))
+    (guix-eval-in-repl
+     (format (concat ",run-in-store "
+                     "(build-package (package-by-id %d)"
+                     " #:use-substitutes? %s"
+                     " #:dry-run? %s)")
+             package-id
+             (guix-guile-boolean guix-use-substitutes)
+             (guix-guile-boolean guix-dry-run)))))
 (defun guix-apply-manifest (profile file &optional operation-buffer)
   "Apply manifest from FILE to PROFILE.
diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm
index c4f1b4a..8914933 100644
--- a/emacs/guix-main.scm
+++ b/emacs/guix-main.scm
@@ -51,6 +51,7 @@
  (guix licenses)
  (guix utils)
  (guix ui)
+ (guix scripts)
  (guix scripts package)
  (gnu packages)
  (gnu system))
diff --git a/emacs/guix-ui-package.el b/emacs/guix-ui-package.el
index eebecc7..4eb7083 100644
--- a/emacs/guix-ui-package.el
+++ b/emacs/guix-ui-package.el
@@ -332,6 +332,13 @@ prompt depending on `guix-operation-confirm' variable)."
   :type 'boolean
   :group 'guix-package-info)
+(defcustom guix-package-info-button-functions
+  '(guix-package-info-insert-build-button)
+  "List of functions used to insert package buttons in Info buffer.
+Each function is called with 2 arguments: package ID and full name."
+  :type '(repeat function)
+  :group 'guix-package-info)
 (defvar guix-package-info-download-buffer nil
   "Buffer from which a current download operation was performed.")
@@ -558,6 +565,7 @@ PACKAGE-ID is an ID of the package which store path to 
     (let* ((entry-id   (guix-entry-id entry))
            (package-id (or (guix-entry-value entry 'package-id)
+           (full-name  (guix-package-entry->name-specification entry))
            (store-path (guix-entry-value entry 'store-path)))
       (guix-info-insert-title-simple "Package")
       (if store-path
@@ -570,7 +578,25 @@ PACKAGE-ID is an ID of the package which store path to 
             (button-get btn 'package-id)))
          "Show the store directory of the current package"
          'entry-id entry-id
-         'package-id package-id)))))
+         'package-id package-id))
+      (when guix-package-info-button-functions
+        (insert "\n")
+        (guix-mapinsert (lambda (fun)
+                          (funcall fun package-id full-name))
+                        guix-package-info-button-functions
+                        (guix-info-get-indent)
+                        :indent guix-info-indent
+                        :column (guix-info-fill-column))))))
+(defun guix-package-info-insert-build-button (id full-name)
+  "Insert button to build a package defined by ID."
+  (guix-info-insert-action-button
+   "Build"
+   (lambda (btn)
+     (guix-build-package (button-get btn 'id)
+                         (format "Build '%s' package?" full-name)))
+   (format "Build the current package")
+   'id id))
 (defun guix-package-info-show-source (entry-id package-id)
   "Show file name of a package source in the current info buffer.

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