* lisp/emacs-lisp/package-vc.el (package-vc-archive-spec-alist):
Unmention :release-rev
(package-vc-desc->spec): Fall back on other archives if a
specification is missing.
(package-vc-main-file): Add new function, copying the behaviour of
elpa-admin.el.
(package-vc-generate-description-file): Use 'package-vc-main-file'.
(package-vc-unpack): Handle special value ':last-release'.
(package-vc-release-rev): Add new function using 'last-change'.
(package-vc-install): Pass ':last-release' as REV instead of a
release.
* lisp/vc/vc-git.el (vc-git-last-change): Add Git 'last-change'
implementation.
* lisp/vc/vc.el (vc-default-last-change): Add default 'last-change'
implementation.
This attempts to replicate the behaviour of elpa-admin.el's
"elpaa--get-last-release-commit".
* lisp/emacs-lisp/package-vc.el (package-vc-archive-spec-alist):
Document the feature.
(package-vc-unpack): Check for :vc-backend in both PKG-SPEC and the
archive specification data.
* lisp/emacs-lisp/package-vc.el (package-vc--archives-initialize): Add
new function, extending 'package--archives-initialize'.
(package-vc-install): Use new function.
(package-vc-link-directory): Use new function.
* lisp/emacs-lisp/package-vc.el (package-vc-archive-spec-alist):
Update docstring.
(package-vc-install): Use :release-rev if invoked with a prefix argument.
* lisp/emacs-lisp/package-vc.el (package-vc-guess-backend): New
function.
(package-vc-unpack): Use it.
(package-vc-sourced-packages-list): Use it.
(package-vc-install): Use it.
* lisp/emacs-lisp/package-vc.el (package-vc-build-documentation): Add
function to build a documentation file.
(package-vc-unpack-1): Use 'package-vc-build-documentation'.
* lisp/emacs-lisp/package-vc.el (package-vc-default-backend): Add new
option.
(package-vc-archive-spec-alist): Add new variable to store the
contents of 'elpa-packages' for each archive.
(pacakge-vc-desc->spec): Add function to query package specifications.
(package-vc--read-archive-data): Add a 'package-read-archive-hook'
implementation.
(package-vc--download-and-read-archives): Add a
'package-refresh-contents-hook' implementation.
(package-vc-main-file): Remove function.
(package-vc-generate-description-file): Use package specifications.
(package-vc-unpack-1): Adapt to previous changes.
(package-vc-unpack): Adapt to previous changes.
(package-vc-sourced-packages-list): Adapt to previous changes.
(package-vc-install): Adapt to previous changes.
* lisp/emacs-lisp/package.el (package-read-archive-hook): Allow
extending 'package-read-all-archive-contents' using a hook.
(package-read-all-archive-contents): Use 'package-read-archive-hook'.
(package-refresh-contents-hook): Allow extending
'package-refresh-contents' using a hook.
(package-refresh-contents): Use 'package-refresh-contents-hook'.
* lisp/emacs-lisp/comp.el (native--compile-async): Don't start the
async compilation if we didn't add anything. This avoids spurious
"Compilation finished" messages in the *Async* buffer when it
turned out that all the files we considered nativecomping were
skipped.
* lisp/loadup.el (featurep): Define the hash table in nativecomp
builds (but not otherwise). A more natural place to define this
would be in comp.el, but comp.el isn't loaded yet when we load the
.elc file that updates comp--no-native-compile. We could change
the load order and move the definition to comp.el, though.
* lisp/emacs-lisp/bytecomp.el (byte-compile-from-buffer): Allow
inhibiting nativecomp earlier (bug#57627).
* lisp/emacs-lisp/comp.el (native-compile-async-skip-p): Use the data.
* lisp/emacs-lisp/cl-generic.el (cl-generic-define-method):
Preserve the `advertised-calling-convention`, if any (bug#58563).
* lisp/subr.el (declare): Warn when we hit this.
* lisp/emacs-lisp/byte-run.el (get-advertised-calling-convention): New fun.
* lisp/progmodes/elisp-mode.el (elisp-get-fnsym-args-string):
* lisp/help-fns.el (help-fns--signature):
* lisp/emacs-lisp/bytecomp.el (byte-compile-fdefinition): Use it.
* test/lisp/emacs-lisp/cl-generic-tests.el (cl-generic-tests--acc): New fun.
(cl-generic-tests--advertised-calling-convention-bug58563): New test.
* lisp/emacs-lisp/loaddefs-gen.el (loaddefs-generate--emacs-batch):
Extract the autoloads and have them loaded along with loaddefs.el.
* etc/NEWS: Mention the new feature. (Bug#57639)
* lisp/emacs-lisp/package-vc.el (package-vc-unpack-1): Add new function.
(package-vc-unpack): Use 'package-vc-unpack-1'.
(package-vc-link-project): Add new command.
* lisp/emacs-lisp/package-vc.el (package-vc-unpack): Check if the
upstream data indicates a custom lisp directory.
* lisp/emacs-lisp/package.el (package--delete-directory): Adapt
accordingly.
* lisp/emacs-lisp/package-vc.el (package-vc-fetch): Rename to preserve
symmetry with 'package-install'.
(package-checkout): Follow the previous rename.
