GitLab

(package-menu-async): New variable.  Controls whether
`list-packages' is asynchronous.
(list-packages): Now asynchronous by default.
(package-menu--new-package-list): Always buffer-local.
(package-menu--post-refresh)
(package-menu--find-and-notify-upgrades)
(package-menu--populate-new-package-list): New functions.

(package--with-work-buffer-async)
(package--check-signature-content)
(package--update-downloads-in-progress): New functions.
(package--check-signature, package--download-one-archive)
(package--download-and-read-archives, package-refresh-contents):
Optional arguments for async usage.
(package--post-download-archives-hook): New variable. Hook run
after every refresh.

Reorganize package.el and divide it with page-breaks and comments

* lisp/emacs-lisp/package.el (package-refresh-contents): Add a message at
the end so it does not appear to have hanged.

* lisp/cedet/semantic/doc.el (semantic-documentation-comment-preceding-tag):
Rename from semantic-documentation-comment-preceeding-tag.  All
uses changed.  Leave an obsolete alias behind.
* src/lisp.h (DEFINE_NON_NIL_Q_SYMBOL_MACROS):
Rename from DEFINE_NONNIL_Q_SYMBOL_MACROS.  All uses changed.

These are packages which require a higher emacs version than the
current one.

* emacs-lisp/package.el (package-installed-p): Fix typo causing
void-variable error.

In particular, when given a package-desc object which is already
installed, the package is not downloaded again.

Populates `package-selected-packages' if necessary, and then checks if
symbol PKG is contained in it.