* lisp/gnus/gnus-dup.el (gnus-dup-enter-articles)
(gnus-dup-suppress-articles): Use gnus-dup-hashtb as an indicator of
initialization instead of gnus-dup-list, which may happen to be nil.
(gnus-dup-unsuppress-article): Do nothing if gnus-dup-hashtb is
uninitialized.
(gnus-dup-list-dirty): Add docstring.
(gnus-dup-open): Allocate gnus-dup-hashtb more conservatively now
that it is no longer an obarray.
(gnus-dup-enter-articles): Fix off-by-one error.
(gnus-dup-suppress-articles): DRY.
For discussion, see thread starting at:
https://lists.gnu.org/archive/html/emacs-devel/2019-03/msg00974.html
Gnus has used obarrays as makeshift hash tables for groups: group
names are coerced to unibyte and interned in custom obarrays, and
their symbol-value set to whatever value needs to be stored. This
patch replaces those obarrays with actual hash tables.
* lisp/gnus/gnus-util.el (gnus-intern-safe, gnus-create-hash-size):
Remove functions.
(gnus-make-hashtable): Change to return a real hash table.
(gnus-text-property-search): Utility similar to `text-property-any',
but compares on `equal'. Needed because the 'gnus-group text
property is now a string.
* lisp/gnus/gnus.el (gnus-gethash, gnus-gethash-safe, gnus-sethash):
Remove macros.
(gnus-group-list): New variable holding all group names as an
ordered list. Used because `gnus-newsrc-hashtb' used to preserve
`gnus-newsrc-alist' ordering, but now doesn't.
* lisp/gnus/nnmaildir.el (nnmaildir--servers): Change from obarray to
alist.
(nnmaildir--up2-1): Remove function.
* lisp/thingatpt.el (thing-at-point-newsgroup-p): This was making use
of Gnus obarrays, replace with a cond that can handle many different
possibilities.
* lisp/gnus/gnus-bcklg.el (gnus-backlog-articles): Remove
gnus-backlog-hashtb, which wasn't doing anything. Just keep a list
of ident strings in gnus-backlog-articles.
(gnus-backlog-setup): Delete unnecessary function.
(gnus-backlog-enter-article, gnus-backlog-remove-oldest-article,
gnus-backlog-remove-article, gnus-backlog-request-article): Alter
calls accordingly.
* lisp/gnus/gnus-dup.el (gnus-duplicate-list-max-length): Rename from
`gnus-duplicate-list-length', for accuracy.
* lisp/gnus/gnus-start.el (gnus-active-to-gnus-format,
gnus-groups-to-gnus-format, gnus-newsrc-to-gnus-format): Read group
names as strings.
(gnus-gnus-to-quick-newsrc-format): Write `gnus-newsrc-alist' using
the ordering in `gnus-group-list'.
* lisp/gnus/gnus-agent.el:
* lisp/gnus/gnus-async.el:
* lisp/gnus/gnus-cache.el:
* lisp/gnus/gnus-group.el:
* lisp/gnus/gnus-score.el:
* lisp/gnus/gnus-sum.el:
* lisp/gnus/gnus-topic.el:
* lisp/gnus/message.el:
* lisp/gnus/mml.el:
* lisp/gnus/nnagent.el:
* lisp/gnus/nnbabyl.el:
* lisp/gnus/nnvirtual.el:
* lisp/gnus/nnweb.el: In all files, change obarrays to hash-tables,
and swap `gnus-sethash' for `puthash', `gnus-gethash' for `gethash',
`mapatoms' for `maphash', etc.
* test/lisp/gnus/gnus-test-headers.el (gnus-headers-make-dependency-table,
gnus-headers-loop-dependencies): New tests to make sure we're
building `gnus-newsgroup-dependencies' correctly.
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
