* etc/ERC-NEWS: Mention that certain aberrant response handlers now
return nil.
* lisp/erc/erc-backend.el (define-erc-response-handler): Mention that
body should explicitly return nil.
(erc-server-PART)
(erc-server-PING): Return nil.
* lisp/erc/erc-sasl.el (erc-sasl--destroy): Return nil.
* lisp/erc/erc.el (erc-display-message): Mention in doc string that
the return value is undefined.
(erc-kill-channel-hook): Fix package-version.
* test/lisp/erc/erc-networks-tests.el (erc-networks--set-name): Ensure
`erc--route-insertion' returns nil because this influences whether
response-handler hooks continue running.
* test/lisp/erc/erc-sasl-tests.el
(erc-sasl-create-client-ecdsa): Fix regression that made test
unusable, although it's still relatively useless and therefore skipped
by default.
* test/lisp/erc/erc-services-tests.el
(erc-services-tests--auth-source-standard)
(erc-services-tests--auth-source-announced): Clarify annotations.
* test/lisp/erc/erc-tests.el (erc-message): Don't return non-nil in
mocked `erc-display-message'.
(erc-send-modify-hook): Shadow `erc-send-modify-hook' because
`erc-stamp--date-mode' modifies it locally.
* etc/ERC-NEWS: Mention new face `erc-information'.
* lisp/erc/erc-button.el (erc-button-add-buttons): Skip buttonization
when the "msg prop" `erc--skip' is present and contains the symbol
`button'. Set `alist' to nil in the same guard condition as a
roundabout way of suppressing further processing.
* lisp/erc/erc-networks.el (erc--insert-admin-message): Forward
declaration.
(erc-networks--insert-transplanted-content)
(erc-networks--transplant-buffer-content): Replace former with latter.
Change signature to take source and destination buffers as parameters.
(erc-networks--transplant-target-buffer-function): New function-valued
variable.
(erc-networks--target-transplant-in-progress-p): New variable, a flag
for downstream code to detect when a transplant is underway.
(erc-networks--reclaim-orphaned-target-buffers): Defer to
`erc-networks--transplant-target-buffer-function' to handle the actual
transplant business. Crucially, kill the buffer afterwards instead of
beforehand. If new buffer-association bugs emerge related to the
combining of old or renamed target buffers, this reordering may be at
fault.
(erc-networks--copy-over-server-buffer-contents): Pass old and new
buffers to `erc-networks--insert-transplanted-content'.
* lisp/erc/erc-stamp.el
(erc-stamp--defer-date-insertion-on-post-modify): Set `fn' slot of
`erc-stamp--date' instance to `ignore' when running the actual
callback in order to conserve a little space.
(erc-stamp--date-mode): Add and remove hook members for
`erc-networks--copy-server-buffer-functions' and
`erc-networks--transplant-target-buffer-function'.
(erc-insert-timestamp-left-and-right): Always clear
`erc-timestamp-last-inserted-right' to ensure a right stamp
accompanies every date stamp.
(erc-stamp--dedupe-date-stamps)
(erc-stamp--dedupe-date-stamps-from-buffer)
(erc-stamp--dedupe-date-stamps-from-target-buffer): New functions.
Date stamp behavior was revamped as part of bug#60936.
* lisp/erc/erc.el (erc-informational): New face.
(erc--insert-admin-message): New function to hide some "msg prop"
complexity from "upstream" libraries, like `erc-networks', and thus
avoid more forward-declarations. A less smelly approach would be to
devise a general interface owned by such libraries, or erc-common,
that `erc-mode' could then hook into on init.
(erc-display-message-highlight): Make face matching more limber to
accommodate the convention of face names lacking a "-face" suffix.
(erc-message-english-graft): New variable.
(erc-kill-channel): Inhibit execution of hook when
`erc-networks--target-transplant-in-progress-p' is non-nil.
* test/lisp/erc/erc-networks-tests.el
(erc-networks--rename-server-buffer--no-existing--orphan)
(erc-networks--rename-server-buffer--existing--reuse)
(erc-networks--rename-server-buffer--local-match)
(erc-networks--rename-server-buffer--local-nomatch): Use helper to
initialize markers.
* test/lisp/erc/erc-stamp-tests.el (erc-stamp--dedupe-date-stamps):
New test. (Bug#70928)
Avoid eager macro-expansion error in tests files on Emacs 27 and 28 by
ensuring definitions provided by Compat, like `macroexp-file-name',
load first.
* lisp/erc/erc-speedbar.el (erc-speedbar--reset-last-ran-on-timer):
Suppress "`buffer-local-value' is an obsolete generalized variable"
warning on Emacs 29 and below.
* lisp/erc/erc-stamp.el (erc-stamp--time-as-day): Avoid "unused
lexical variable `current-time-list'" warning on 28 and below.
* lisp/erc/erc.el (erc-check-text-conversion): Add `defvar' for
`text-conversion-style' to avoid "reference to free variable" warning
on Emacs 29 and below.
* test/lisp/erc/erc-button-tests.el: Load `erc-button' before `ert-x'.
* test/lisp/erc/erc-fill-tests.el: Load `erc-fill' before `ert-x'.
* test/lisp/erc/erc-goodies-tests.el: Load `erc-goodies' before
`ert-x'.
* test/lisp/erc/erc-networks-tests.el: Explicitly load `erc-compat'
before anything else.
* test/lisp/erc/erc-scenarios-base-renick.el: Update timeouts.
* test/lisp/erc/erc-stamp-tests.el: Load `erc-stamp' before `ert-x'.
* test/lisp/erc/erc-tests.el: Load `erc-ring' before `ert-x'.
* lisp/erc/erc-networks.el (erc-networks--examine-targets): Adopt the
server's network ID in query buffers created before MOTD's end. Do
this to avoid a type error in the process filter when renaming
buffers.
* lisp/erc/erc-networks.el (erc-networks--examine-targets): New test.
* test/lisp/erc/erc-scenarios-base-upstream-recon-znc.el
(erc-scenarios-upstream-recon--znc/severed): New test.
* test/lisp/erc/erc-scenarios-misc.el
(erc-scenarios-base-mask-target-routing): Adjust timeout.
* test/lisp/erc/resources/base/upstream-reconnect/znc-severed.eld:
New file.
* test/lisp/erc/resources/erc-tests-common.el
(erc-tests-common-make-server-buf): Use NAME parameter for creating
ID.
* lisp/erc/erc-common.el (erc--define-catalog): Update name of
reference to convenience command now located in `erc-tests-common'.
* test/lisp/erc/erc-button-tests.el: Require common test-util library
`erc-tests-common', located under test/lisp/erc/resources.
; (erc-button-alist--url,
; erc-button-tests--erc-button-alist--function-as-form,
; erc-button-tests--erc-button-alist--nil-form,
; erc-button--display-error-notice-with-keys): Use common helper
; `erc-tests-common-init-server-proc' from test-utils library.
* test/lisp/erc/erc-fill-tests.el: Require `erc-tests-common'.
(erc-fill-tests--wrap-populate): Use helper
`erc-tests-common-init-server-proc'.
(erc-fill-tests--save-p): Remove. See replacement
`erc-tests-common-snapshot-save-p' in erc-tests-common.
(erc-fill-tests--graphic-dir): Add trailing slash.
(erc-fill-tests--compare): Move body to generalized utility
`erc-tests-common-snapshot-compare' in erc-tests-common.
* test/lisp/erc/erc-goodies-tests.el: Require `erc-tests-common'.
(erc--get-inserted-msg-beg/readonly,
erc--get-inserted-msg-end/readonly,
erc--get-inserted-msg-bounds/readonly): Move here from erc-tests.el.
* test/lisp/erc/erc-networks-tests.el: Load `erc-tests-common'.
(erc-networks-tests--create-live-proc): Defer to
`erc-tests-common-init-server-proc' and drop optional buffer param.
(erc-networks-tests--clean-bufs): Defer to
`erc-tests-common-kill-buffers'.
(erc-networks--rename-server-buffer--existing--live): Call
`erc-networks-tests--create-live-proc' in server buffer.
* test/lisp/erc/erc-scenarios-internal.el: Load `erc-tests-common'.
(erc-scenarios-internal--run-graphical-all): Use
`erc-tests-common-create-subprocess' to create process.
* test/lisp/erc/erc-scenarios-sasl.el
(erc-scenarios-sasl--plain-fail): Silence error message.
* test/lisp/erc/erc-stamp-tests.el: Require `erc-tests-common'.
(erc-stamp-tests--insert-right, erc-timestamp-intangible--left): Use
`erc-tests-common-init-server-proc'.
(erc-tests--assert-get-inserted-msg/stamp,
erc-stamp-tests--assert-get-inserted-msg/stamp): Move from
erc-tests.el, renaming to latter.
(erc--get-inserted-msg-beg/stamp,
erc--get-inserted-msg-beg/readonly/stamp,
erc--get-inserted-msg-end/stamp,
erc--get-inserted-msg-end/readonly/stamp,
erc--get-inserted-msg-bounds/stamp,
erc--get-inserted-msg-bounds/readonly/stamp): Move here from
erc-tests.el.
* test/lisp/erc/erc-tests.el: Require `erc-tests-common'.
(erc-with-server-buffer): Use renamed test-helper utility
`erc-tests-common-init-server-proc'.
(erc-tests--send-prep, erc-tests--set-fake-server-process): Move to
`erc-tests-common' library and rename to
`erc-tests-common-prep-for-insertion' and
`erc-tests-common-init-server-proc', respectively.
; (erc-hide-prompt, erc--refresh-prompt,
; erc-setup-buffer--custom-action, erc--parsed-prefix,
; erc--update-channel-modes, erc--channel-modes,
; erc--channel-modes/graphic-p, erc-ring-previous-command): Use
; `erc-tests-common-prep-for-insertion' instead of
; `erc-tests--send-prep', and use `erc-tests-common-init-server-proc'
; instead of `erc-tests--set-fake-server-process'.
(erc-tests--with-process-input-spy): Move to `erc-tests-common' and
rename `erc-tests-common-with-process-input-spy'.
; (erc--check-prompt-input-functions, erc-send-current-line,
; erc--check-prompt-input-for-multiline-blanks,
; erc-send-whitespace-lines): Use renamed
; `erc-tests-common-with-process-input-spy' and
; `erc-tests-common-init-server-proc'.
; (erc-process-input-line): Use renamed
; `erc-tests-common-init-server-proc'.
(erc-tests--get-inserted-msg-setup,
erc-tests--assert-get-inserted-msg,
erc-tests--assert-get-inserted-msg/basic,
erc-tests--assert-get-inserted-msg-readonly-with): Move to
`erc-tests-common' and rename with "common" prefix, using single
instead of double hyphen.
(erc-tests--assert-get-inserted-msg/stamp): Move to `erc-stamp-tests'
and rename with "stamp" prefix.
(erc--get-inserted-msg-beg/stamp,
erc--get-inserted-msg-beg/readonly/stamp,
erc--get-inserted-msg-end/stamp,
erc--get-inserted-msg-end/readonly/stamp,
erc--get-inserted-msg-bounds/stamp,
erc--get-inserted-msg-bounds/readonly/stamp): Move to
`erc-stamp-tests'.
(erc--get-inserted-msg-beg/readonly,
erc--get-inserted-msg-end/readonly,
erc--get-inserted-msg-bounds/readonly): Move to `erc-goodies-tests'.
; (erc--get-inserted-msg-beg/basic,
; erc--get-inserted-msg-end/basic,
; erc--get-inserted-msg-bounds/basic): Use common helpers.
; (erc--route-insertion): Use renamed helper functions
; `erc-tests-common-with-process-input-spy' and
; `erc-tests-common-init-server-proc'.
(erc-tests--make-server-buf): Move to `erc-common-tests' and rename
with "common" prefix.
(erc-tests--make-client-buf): Remove unused function without supplying
replacement.
; (erc-handle-irc-url): Use renamed `erc-tests-common-make-server-buf'
; utility function.
; (erc-tests--assert-printed-in-subprocess): Use helper from common lib
; `erc-tests-common-create-subprocess code' to do the heavy lifting.
(erc-tests--string-to-propertized-parts,
erc-tests-pp-propertized-parts): Move to `erc-tests-common' and rename
with "common" prefix.
* test/lisp/erc/resources/erc-tests-common.el: New file containing
helper utilities and fixtures used by multiple files in test/lisp/erc.
* etc/ERC-NEWS: Mention `erc-target' and new `erc-server-buffer-p'
alias.
* lisp/erc/erc-backend.el (erc-process-sentinel): Set `joined-p' slot
of `erc--target-channel' object to nil when applicable.
(erc-server-JOIN): Mark `erc--target-channel' object as being joined.
* lisp/erc/erc-common.el (erc--target-channel): Add `joined-p' slot.
Use hyphenated name so accessor function's name ends in "joined-p"
rather than "joinedp". Note that this will always be nil when
disconnected.
(erc--target): Relocate here from erc.el.
(erc-target): New public API function to return the current buffer's
target as a string, even in channels that have been unjoined.
* lisp/erc/erc-networks.el (erc--default-target): Remove forward
declaration.
(erc-networks--id-reload): Use `erc-target' instead of
`erc--default-target' as predicate for visiting target buffers.
* lisp/erc/erc.el (erc-remove-channel-users): Set channel "joinedness"
to nil in `erc--target-channel' object, when applicable.
(erc--target): Move to erc-common.
(erc--default-target): Remove, replaced by new function `erc-target'.
(erc-query-buffer-p): Use `erc-target'.
(erc-after-connect): Revise doc string.
(erc-connection-established): Revise doc string and move
`erc-unhide-query-prompt' business before hook.
(erc--current-buffer-joined-p): Remove comment and use new `joined-p'
slot of `erc--target-channel' for determining "joinedness" of channel.
(erc-kill-buffer-function): Use `erc--target-channel-p' for detecting
whether the buffer is a channel buffer.
* test/lisp/erc/erc-networks-tests.el
(erc-networks--shrink-ids-and-buffer-names--hook-collapse-target):
Remove comment.
* test/lisp/erc/erc-scenarios-base-reuse-buffers.el
(erc-scenarios-common--base-reuse-buffers-channel-buffers):
Clarify assertion.
* test/lisp/erc/erc-tests.el (erc-with-all-buffers-of-server):
Replace `erc-default-recipients' with `erc--target'.
(erc--target-from-string): Update expected shape of
`erc--target-channel' struct with new `joined-p' slot.
(erc-message): Set `erc--target' in buffer "#chan". (Bug#66578)
* etc/ERC-NEWS: Designate `erc-display-message' as the favored means
of inserting messages.
* lisp/erc/erc-fill.el (erc-fill-wrap): Skip any `unknown' `erc-msg'.
* lisp/erc/erc-stamp.el (erc-stamp--current-time): Use an existing
`erc-ts' text property, when present, for the current message time.
* lisp/erc/erc.el (erc-display-line-1, erc-insert-line): Update doc
string and declare the former an obsolete alias for the latter,
`erc-insert-line'. Have `erc-log' label say `erc-display-message'
even though this function is actually `erc-insert-line'.
(erc-display-line): Convert to a thin wrapper around
`erc-display-message', and move its existing body to a new internal
function, `erc--route-insertion'.
(erc--route-insertion): Adopt former body of `erc-display-line', now a
convenience wrapper around `erc-display-message'. Copy
`erc--msg-props' hash table when inserting a message in multiple
buffers. At present, only `erc-server-QUIT' uses this facility, so
such a move shouldn't impact performance in any measurable way. Also,
improve readability with at most one recursive call for the
fall-through case.
(erc--compose-text-properties, erc--merge-text-properties-p): Rename
former to latter to avoid confusion with `composition' property.
(erc-display-message): Update doc string. Attempt to adapt a non-nil
TYPE parameter for use as the value of the `erc-msg' text property
before resorting to a value of `unknown'. But only do this when
PARSED is nil, and MSG is a string. Call `erc--route-insertion'
instead of `erc-display-line'. Use new name for
`erc--compose-text-properties'.
(erc-put-text-property): Update name of variable
`erc--compose-text-properties'.
* test/lisp/erc/erc-networks-tests.el (erc-networks--set-name): Mock
`erc--route-insertion' instead of `erc-display-line'.
* test/lisp/erc/erc-scenarios-display-message.el: New file.
* test/lisp/erc/erc-tests.el (erc--route-insertion): New test.
* test/lisp/erc/resources/base/display-message/multibuf.eld: New test
data.
; * test/lisp/erc/resources/fill/snapshots/merge-01-start.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/merge-02-right.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/merge-wrap-01.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/monospace-01-start.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/monospace-02-right.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/monospace-03-left.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/monospace-04-reset.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/spacing-01-mono.eld: Update.
; * test/lisp/erc/resources/fill/snapshots/stamps-left-01.eld: Update.
(Bug#60936)
* etc/ERC-NEWS: Announce deprecation of `erc-server-alist' and
`erc-server-select'.
* lisp/erc/erc-networks.el: Comment out call to `erc-get' at end of
file.
(erc-server-alist) Change shape to accommodate a fifth member: TLS
ports. Add default TLS ports for Libera.Chat and OFTC. Deprecate
option.
(erc-ports-list): Overload for internal use to accept a number instead
of a list, but don't advertise this fact.
(erc-networks--server-select): Convert `erc-server-select' into a
function that performs the same prompting but returns a full URL or a
host name instead of calling `erc'.
(erc-server-select): Move to erc.el.
* lisp/erc/erc.el (erc--prompt-for-server-functions): New variable to
allow callers of `erc-select-read-args' to affect how server-prompting
is handled without adding additional params.
(erc-select-read-args): Defer to `erc--prompt-for-server-function'
when non-nil.
(erc-server-select): New transplanted function, a deprecated, now
TSL-aware version of the old quirky entry point from erc-networks.el.
Reimplemented as a simple wrapper for `erc'.
* test/lisp/erc/erc-networks-tests.el (erc-ports-list): New test.
* test/lisp/erc/erc-tests.el (erc-server-select): New test.
(Bug#64478)
* etc/ERC-NEWS: Update entry in 5.6 section announcing a persistent
prompt.
* lisp/erc/erc-dcc.el (erc-dcc-chat-setup): Use helper
`erc--initialize-markers' to set up prompt.
* lisp/erc/erc.el (erc--initialize-markers): Change
`erc-insert-marker' type to t. Do this to spare modules that want to
remember the current message location from resorting to workarounds,
like leaving a marker one char before the end of a message, which is
not foolproof.
(erc--refresh-prompt): Temporarily change type of `erc-insert-marker'
when inserting prompt.
(erc-display-line-1): Insert incoming message normally instead of
forcing before markers, thus respecting markers left by third parties.
Strictly speaking, this is a breaking change.
(erc-display-msg): Insert normally instead of calling
`insert-before-markers', which was a regression introduced by 05f6fdb9
"Preserve ERC prompt and its bounding markers".
* test/lisp/erc/erc-dcc-tests.el
(erc-dcc-tests--dcc-handle-ctcp-send,
erc-dcc-tests--erc-dcc-do-GET-command): Use helper to initialize
prompt and markers.
* test/lisp/erc/erc-networks-tests.el
(erc-networks--ensure-announced,
erc-networks--rename-server-buffer--existing--reuse,
erc-networks--rename-server-buffer--existing--noreuse,
erc-networks--rename-server-buffer--reconnecting,
erc-networks--rename-server-buffer--id,
erc-networks--rename-server-buffer--existing--live,
erc-networks--rename-server-buffer--local-match,
erc-networks--rename-server-buffer--local-nomatch): Use helper to
initialize prompt and bounding markers.
* test/lisp/erc/erc-stamp-tests.el (erc-stamp-tests--insert-right):
Use `erc--initialize-markers' for setting up prompt.
* test/lisp/erc/erc-tests.el (erc--refresh-prompt): Adjust assertions
for expected prompt content. (Bug#60936)
* lisp/erc/erc.el (erc--assert-input-bounds): Add possibly temporary
helper function to sync `process-mark' to `erc-insert-marker' in
server buffer.
(erc-display-line-1): Expect `erc-insert-marker' to always be
initialized. Assert some essential invariants regarding insert
markers.
(erc-send-current-line): Delete typed input but not the prompt.
(erc-display-msg): Rework slightly to respect existing markers.
* test/lisp/erc/erc-dcc-tests.el
(erc-dcc-tests--dcc-handle-ctcp-send): Set insert marker.
* test/lisp/erc/erc-networks-tests.el
(erc-networks--rename-server-buffer--existing-live): Initialize
markers to appease `erc--assert-input-bounds'.
* test/lisp/erc/erc-tests.el (erc-ring-previous-command): Fix sloppy
mock. (Bug#60936.)
* lisp/erc/erc-networks.el
(erc-networks-rename-surviving-target-buffer): Don't kill a surviving
target buffer when another, non-target buffer, possibly not even
belonging to ERC, already exists and sports the target's name.
(erc-networks--reconcile-buffer-names): Always append a network-ID
suffix to a target buffer's name if another buffer of that name
already exists. (Bug#59976.)
* lisp/erc/erc.el (erc, erc-tls): Revise `:id' portion of doc strings.
Thanks to Mike Kazantsev for the suggestion and for filing this bug
and helping solve it.
* test/lisp/erc/erc-networks-tests.el:
(erc-networks-rename-surviving-target-buffer--query-non-target): Add
new test.
* test/lisp/erc/erc-scenarios-base-association-query.el: New file.
* test/lisp/erc/resources/base/assoc/queries/netnick.eld: New file.
* test/lisp/erc/resources/base/assoc/queries/non-erc.eld: New file.
* lisp/erc/erc-networks.el (erc-networks--determine): Return the
so-called "given" ID from a non-nil `:id' keyword arg passed to `erc'
or `erc-tls'.
(erc-networks--allow-unknown-network): Add internal variable to
allow IRC session to continue despite the network being unknown.
(erc-networks--set-name): Tell the user about falling back to a given
ID when the network can't be determined. When that's so, end the
session by destroying the connection unless
`erc-networks--allow-unknown-network' is enabled. (Bug#59976.)
(erc-networks--ensure-announced): Include the fallback announced
server name in the error message.
* test/lisp/erc/erc-networks-tests.el (erc-networks--set-name): Add
dummy server process and don't expect an error to be signaled.
* test/lisp/erc/erc-scenarios-misc.el
(erc-scenarios-networks-announced-missing): Don't expect an error to
be signaled.
* test/lisp/erc/resources/networks/announced-missing/foonet.eld:
Remove "mode" match pattern.
* test/lisp/erc/erc-networks-tests.el (erc-networks--id,
erc-networks--id-create): Attempt to fix arity of mocked `float-time'.
* test/lisp/erc/erc-scenarios-base-reuse-buffers.el
(erc-scenarios-base-reuse-buffers-channel-buffers--disabled): Tag as
being unstable.
* lisp/erc/erc-backend.el (erc-server-connected): Revise doc string.
(erc-server-reconnect, erc-server-JOIN): Reuse original ID param from
the first connection when calling `erc-open'.
(erc-server-NICK): Apply same name generation process used by
`erc-open'; except here, do so for the purpose of "re-nicking".
Update network identifier and maybe buffer names after a user's own
nick changes.
* lisp/erc/erc-networks.el (erc-networks--id, erc-networks--id-fixed,
erc-networks--id-qualifying): Define new set of structs to contain all
info relevant to specifying a unique identifier for a network context.
Add a new variable `erc-networks--id' to store a local reference to a
`erc-networks--id' object, shared among all buffers in a logical
session.
(erc-networks--id-given, erc-networks--id-create,
erc-networks--id-on-connect, erc-networks--id--equal-p,
erc-networks--id-qualifying-init-parts,
erc-networks--id-qualifying-init-symbol,
erc-networks--id-qualifying-grow-id,
erc-networks--id-qualifying-reset-id,
erc-networks--id-qualifying-prefix-length,
erc-networks--id-qualifying-update, erc-networks--id-reload,
erc-networks--id-ensure-comparable, erc-networks--id-sort-buffers):
Add new functions to support management of `erc-networks--id' struct
instances.
(erc-networks--id-sep): New variable for to help when formatting
buffer names.
(erc-obsolete-var): Define new generic context rewriter.
(erc-networks-shrink-ids-and-buffer-names,
erc-networks--refresh-buffer-names,
erc-networks--shrink-ids-and-buffer-names-any): Add functions to
reassess all network IDs and shrink them if necessary along with
affected buffer names. Also add function to rename buffers so that
their names are unique. Register these on all three of ERC's
kill-buffer hooks because an orphaned target buffer is enough to keep
its session alive.
(erc-networks-rename-surviving-target-buffer): Add new function that
renames a target buffer when it becomes the sole bearer of a name
based on a target that has become unique across all sessions and, in
most cases, all networks. IOW, remove the @NETWORK-ID suffix from the
last remaining channel or query buffer after its namesakes have all
been killed off. Register this function with ERC's target-related
kill-buffer hooks.
(erc-networks--examine-targets): Add new utility function that visits
all ERC buffers and runs callbacks when a buffer-name collision is
encountered.
(erc-networks--qualified-sep): Add constant to hold separator between
target and suffix.
(erc-networks--construct-target-buffer-name,
erc-networks--ensure-unique-target-buffer-name,
erc-networks--ensure-unique-server-buffer-name,
erc-networks--maybe-update-buffer-name): Add helpers to support
`erc-networks--reconcile-buffer-names' and friends.
(erc-networks--reconcile-buffer-names): Add new buffer-naming strategy
function and helper for `erc-generate-new-buffer-name' that only run
in target buffers.
(erc-determine-network, erc-networks--determine): Deprecate former and
partially replace with latter, which demotes RPL_ISUPPORT-derived
NETWORK name to fallback in favor of known `erc-networks-alist'
members as part of shift to network-based connection-identity policy.
Return sentinel on failure. Expect `erc-server-announced-name' to be
set, and signal when it's not.
(erc-networks--name-missing-sentinel): Value returned when new
function `erc-networks--determine' fails to find network name. The
rationale for not making this customizable is that the value signifies
the pathological case where a user of an uncommon IRC setup has not
yet set a mapping from announced- to network name. And the chances of
there being multiple unknown networks is low.
(erc-set-network-name, erc-networks--set-name): Deprecate former and
partially replace with latter. Ding with helpful message, and don't
set `erc-network' when network name is not found.
(erc-networks--ensure-announced): Add new fallback function to ensure
`erc-server-announced-name' is set. Register with post-MOTD hooks.
(erc-unset-network-name): Deprecate function unused internally.
(erc-networks--insert-transplanted-content,
erc-networks--reclaim-orphaned-target-buffers,
erc-networks--copy-over-server-buffer-contents,
erc--update-server-identity): Add helpers for
`erc-networks--rename-server-buffer'. The first re-associates all
existing target buffers that ought to be owned by the new server
process. The second grabs buffer text from an old, dead server buffer
before killing it. It then inserts that text above everything in the
current, replacement server buffer. The other two massage the IDs of
related sessions, possibly renaming them as well. They may also
uniquify the current session's network ID.
(erc-networks--init-identity): Add new function to perform one-time
session-related setup. This could be combined with
`erc-set-network-name'.
(erc-networks--rename-server-buffer): Add new function to replace
`erc-unset-network-name' as default `erc-disconnected-hook' member;
renames server buffers once network is discovered; added to/removed
from `erc-after-connect' hook on `erc-networks' minor mode.
(erc-networks--bouncer-targets): Add constant to hold target symbols
of well known bouncer-configuration bots.
(erc-networks-on-MOTD-end): Add primary network-context handler to run
on 376/422 functions, just before logical connection is officially
established.
(erc-networks-enable, erc-networks-mode): Register main network-setup
handler with 376/422 hooks.
* lisp/erc/erc.el (erc-rename-buffers): Change this option's default
to t, remove the only instance where it's actually used, and make it
an obsolete variable.
(erc-reuse-buffers): Make this an obsolete variable, but take pains to
ensure its pre-28.1 behavior is preserved. That is, undo the
regression involving unwanted automatic reassociation of channel
buffers during joins, which arrived in ERC 5.4 and effectively
inverted the meaning of this variable, when nil, for channel buffers,
all without accompanying documentation or announcement.
(erc-generate-new-buffer-name): Replace current policy of appending a
slash and the invocation host name. Favor instead temporary names for
server buffers and network-based uniquifying suffixes for channels and
query buffers. Fall back to the TCP host:port<n> convention when
necessary. Accept additional optional params after the others.
(erc-get-buffer-create): Don't generate a new name when reconnecting,
just return the same buffer. `erc-open' starts from a clean slate
anyway, so this just keeps things simple. Also add optional params.
(erc-open): Add new ID param to for a network identifier explicitly
passed to an entry-point command. This is stored in the `given' slot
of the `erc-network--id' object. Also initialize the latter in new
connections and otherwise copy it over. As part of the push to recast
erc-networks.el as an essential library, set `erc-network' explicitly,
when known, rather than via hooks.
(erc, erc-tls): Add new ID keyword parameter and pass it to
`erc-open'.
(erc-log-irc-protocol): Use `erc--network-id' instead of the function
`erc-network' to determine preferred peer name.
(erc-format-target-and/or-network): This is called frequently from
mode-line updates, so renaming buffers here is not ideal. Instead, do
so in `erc-networks--rename-server-buffer'.
(erc-kill-server-hook): Add `erc-networks-shrink-ids-and-buffer-names'
as default member.
(erc-kill-channel-hook, erc-kill-buffer-hook): Add
`erc-networks-shrink-ids-and-buffer-names' and
`erc-networks-rename-surviving-target-buffer' as default member.
* test/lisp/erc/erc-tests.el (erc-log-irc-protocol): Use network-ID
focused internal API.
* test/lisp/erc/erc-networks-tests.el: Add new file that includes
tests for the above network-ID focused functions.
See bug#48598 for background on all of the above.
