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master 0661a39: Avoid changing value of defcustom package-enable-at-star

From: Stefan Kangas
Subject: master 0661a39: Avoid changing value of defcustom package-enable-at-startup
Date: Tue, 5 Nov 2019 19:19:44 -0500 (EST)

branch: master
commit 0661a39d1b501a41e439df8c73f7b7f3bf3e3761
Author: Stefan Kangas <address@hidden>
Commit: Stefan Kangas <address@hidden>

    Avoid changing value of defcustom package-enable-at-startup
    * lisp/emacs-lisp/package.el (package--activated): New variable to
    avoid changing value of defcustom 'package-enable-at-startup'.
    (package-initialize): Don't set 'package-enable-at-startup'.
    (package-initialize, package-activate-all): Set 'package--activated'
    instead of 'package-enable-at-startup'.
    (package--initialized): Add doc string.
    * lisp/startup.el (command-line): Check if 'package--activated' is
    non-nil before activating packages.
    * doc/lispref/package.texi (Packaging Basics): Update docs.
 doc/lispref/package.texi   |  5 +----
 lisp/emacs-lisp/package.el | 15 +++++++++------
 lisp/startup.el            |  3 +++
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/doc/lispref/package.texi b/doc/lispref/package.texi
index 57f4cbc..236855b 100644
--- a/doc/lispref/package.texi
+++ b/doc/lispref/package.texi
@@ -117,10 +117,7 @@ init file.
 This function makes the packages available to the current session.
 The user option @code{package-load-list} specifies which packages to
 make available; by default, all installed packages are made available.
-If called during startup, this function also sets
-@code{package-enable-at-startup} to @code{nil}, to avoid accidentally
-evaluating package autoloads more than once.  @xref{Package
-Installation,,, emacs, The GNU Emacs Manual}.
+@xref{Package Installation,,, emacs, The GNU Emacs Manual}.
 In most cases, you should not need to call @code{package-activate-all},
 as this is done automatically during startup.  Simply make sure to put
diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index 3c14b50..b7a528d 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -1543,20 +1543,24 @@ If successful, set or update 
   (dolist (archive package-archives)
     (package-read-archive-contents (car archive))))
 ;;;; Package Initialize
 ;; A bit of a milestone.  This brings together some of the above
 ;; sections and populates all relevant lists of packages from contents
 ;; available on disk.
-(defvar package--initialized nil)
+(defvar package--initialized nil
+  "Non-nil if `package-initialize' has been run.")
+(defvar package--activated nil
+  "Non-nil if `package-activate-all' has been run.")
 (defun package-initialize (&optional no-activate)
   "Load Emacs Lisp packages, and activate them.
 The variable `package-load-list' controls which packages to load.
 If optional arg NO-ACTIVATE is non-nil, don't activate packages.
-If called as part of loading `user-init-file', set
-`package-enable-at-startup' to nil, to prevent accidentally
-loading packages twice.
 It is not necessary to adjust `load-path' or `require' the
 individual packages after calling `package-initialize' -- this is
@@ -1573,7 +1577,6 @@ that code in the early init-file."
     (lwarn '(package reinitialization) :warning
            "Unnecessary call to `package-initialize' in init file"))
   (setq package-alist nil)
-  (setq package-enable-at-startup nil)
   (setq package--initialized t)
@@ -1589,7 +1592,7 @@ that code in the early init-file."
 (defun package-activate-all ()
   "Activate all installed packages.
 The variable `package-load-list' controls which packages to load."
-  (setq package-enable-at-startup nil)
+  (setq package--activated t)
   (if (file-readable-p package-quickstart-file)
       ;; Skip load-source-file-function which would slow us down by a factor
       ;; 2 (this assumes we were careful to save this file so it doesn't need
diff --git a/lisp/startup.el b/lisp/startup.el
index 30f1a25..651224f 100644
--- a/lisp/startup.el
+++ b/lisp/startup.el
@@ -1013,6 +1013,8 @@ the `--debug-init' option to view a complete error 
     (when debug-on-error-should-be-set
       (setq debug-on-error debug-on-error-from-init-file))))
+(defvar package--activated nil)
 (defun command-line ()
   "A subroutine of `normal-top-level'.
 Amongst another things, it parses the command-line arguments."
@@ -1233,6 +1235,7 @@ please check its value")
   ;; If any package directory exists, initialize the package system.
   (and user-init-file
+       (not package--activated)
        (catch 'package-dir-found
         (let (dirs)
           (if (boundp 'package-directory-list)

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