* lisp/emacs-lisp/seq.el (seq--make-bindings): Add support for `&rest'
in the argument list.
* test/automated/seq-tests.el: Add a test for parsing and binding
`&rest' in `seq-let'.
(package-import-keyring, package-refresh-contents)
(package-compute-transaction, package--save-selected-packages)
(package-install-from-archive, package-delete)
(package-menu--perform-transaction): Use `inhibit-message'
instead.
(package--compile): Set `warning-minimum-level' to :error.
* lisp/emacs-lisp/seq.el (seq-let): New macro. `seq-let' is similar
to `cl-destructuring-bind' but works on all sequence types supported
by `seq.el'. Bump version number to 1.6.
* test/automated/seq-tests.el: Add tests for seq-let.
* doc/lispref/sequences.texi: Add documentation for seq-let.
(package--download-and-read-archives): Use pushnew instead of
append. If something terrible happened during a previous
download, simply refreshing should now make things work again.
(package-menu--refresh): Delegate obsolete-hiding to
`package--remove-hidden'.
(package--remove-hidden): Disregard high-priority package if it is
older than the installed one.
* lisp/emacs-lisp/map.el (map-elt): If map is an alist and key is
found but its associated value is nil, do not return the default
value.
* test/automated/map-tests.el: Add a regression test.
(seq-doseq): Fix out-of-scope binding.
Don't call `seq-length at every iteration.
Reduce `if's from 3 to 2 per iteration.
(emacs-lisp-mode-hook): Don't tweak in Emacs≥25.
* lisp/emacs-lisp/map.el (map-delete): When map is an array, check if
the key is present to avoid signaling an error.
* test/automated/map-tests.el: Add a test for deleting non-existing
keys from maps.
* lisp/emacs-lisp/map.el (map-elt): Do not use `ignore-errors' when
doing a lookup in arrays, but check the boundaries of the array
instead.
* test/automated/map-tests.el: Adds a test for `map-elt' with arrays
and a negative integer as key.
(package-menu-hide-low-priority): New variable, see its doc.
(package-archive-priorities): Update doc.
(package-desc-priority): New function.
(package-desc-priority-version): Use it.
(package--remove-hidden): New function.
(package-menu--refresh): Use it.
(package-menu--hide-obsolete): New variable.
(package--remove-hidden): Use it.
(package-menu-hide-obsolete): New interactive function to toggle
the variable.
(package--quick-help-keys): Document it.
(package-menu-async): Add :version tag.
(package-menu-mode-map): Bind package-menu-hide-obsolete.
(package-desc-status): Indicate non-installed obsolete packages as
avail-obso.
(package-menu-mark-install): Allow installation of avail-obso.
(package-menu--status-predicate): Sort avail-obso with available.
(package-menu-filter): Accept a list of keywords.
(package--all-keywords): New variable to cache known keywords.
(package-all-keywords): Populate it if necessary.
(package-refresh-contents): Reset it.
(package--has-keyword-p): Understand "arc:xxxx" and "status:xxxx"
as special keywords which match agains package archive and status
respectively.
* etc/NEWS: Document it.
* lisp/emacs-lisp/package.el (package--read-archive-file):
Set `coding-system-for-read' explicitly to 'utf-8 when reading the
downloaded and cached archive-contents files, so that non-ASCII
characters in package descriptions are displayed correctly in the
`list-packages' menu. (Bug#20231)
Co-authored-by: Steve Purcell <steve@sanityinc.com>
