To some extend this is a personal preference, but the preference is
strongly dependent on whether one is used to a language that makes it
necessary to use variables like this.
This makes it perfectly clear that we are first getting and then using
a "foo":
(use-foo (get-foo))
Sure this has to be read "inside out", but that's something one better
gets used to quickly when dealing with lisp. I don't understand why
one would want to write this instead:
(let ((the-foo (get-foo)))
(use-foo the-foo))
Both `get-foo' and `use-foo' are named in a way that make it very
clear that we are dealing with a "foo". Storing the value in an
additional variable `the-foo' does not make this any more clear.
On the contrary I makes the reader wonder why the author choose to
use a variable. Is the value used more than once? Is the value
being retrieved in one context and then used in another (e.g. when
the current buffer changes)?
No longer use the function `notmuch-search-get-query', which does
nothing but return the value of that variable. That function was
added in [1: f47eeac0] for use in `notmuch-read-query' along-side
related `notmuch-show-get-query' and `notmuch-tree-get-query' but
using it here makes little sense.
1: f47eeac0b0
emacs: set default in notmuch-read-query
Define these variables as automatically buffer-local, meaning that
they always become buffer-local when set unless explicitly told
otherwise using `setq-default' or when using the Custom interface.
Previously they were declared, which keeps the byte-compiler quiet but
is not actually the same as being defined. `notmuch-search-mode' then
made them buffer-local in the current buffer and then set the local
values. This works but is not kosher.
The definitions of the three non-option variables have to be moved up
a bit to enable the change in the next commit, which see.
We shouldn't force `ido-completion-read' on users who do not otherwise
use Ido. Unfortunately simply turning on `ido-mode' does not change
every `completing-read' into a `ido-completing-read', instead it only
changes file and buffer completion.
I do realize that existing Ido users will initially dislike this
change, but I would like to encourage them to see this as an
opportunity to learn about Fido.
Unlike `ido-mode', build-in `fido-mode' confirms to the standard
completion API, so turning it on causes every `completing-read' to
use the Fido completion mechanism and which is similar to the Ido
mechanism:
> An enhanced `icomplete-mode' that emulates `ido-mode'. This global
> minor mode makes minibuffer completion behave more like `ido-mode'
> than regular `icomplete-mode'."
`notmuch-show-insert-part-text/plain' calls
`notmuch-show-insert-text/plain-hook' with two arguments
MSG and DEPTH. Currently all hook functions ignore MSG but
third-party functions may not. One hook function uses DEPTH.
This function had a few issues.
- Neither its name nor the old comment before it is called made it
clear what it does.
- It took one argument but didn't do anything with it.
- It's doc-string made a few claims, which are untrue and generally
focused on details instead of that its purpose is.
The previous commit switched to lexical-binding but without dealing
with the new warnings about unused lexical arguments and variables.
This commit deals with most of them, in most cases by either removing
leftover bindings that are actually unnecessary, or by marking certain
arguments as "known to be unused" by prefixing their names with "_".
In the case of the functions named `notmuch-show-insert-...' the
amount of silencing that is required is a bit extreme and we might
want to investigate if there is a better way.
In the case of `notmuch-mua-mail', ignoring CONTINUE means that we do
not fully follow the intended behavior described in `compose-mail's
doc-string.
Doing so causes many new compile warnings. Some of these warnings
concern genuine changes in behavior that have to be addressed right
away.
Many other warnings are due to unused variables. Nothing has changed
here, except that the byte-compiler can now detect these pre-existing
and harmless issues. We delay addressing these issues so that we can
focus on the important ones here.
A third group of warnings concern arguments that are not actually used
inside the function but which cannot be removed because the functions
signature is dictated by some outside convention. Silencing these
warning is also delayed until subsequent commits.
`outline-minor-mode' treats comments that begin with three or more
semicolons as headings. That makes it very convenient to navigate
code and to show/hide parts of a file.
Elips libraries typically have four top-level sections, e.g.:
;;; notmuch.el --- run notmuch within emacs...
;;; Commentary:...
;;; Code:...
;;; notmuch.el ends here
In this package many libraries lack a "Commentary:" section, which is
not optimal but okay for most libraries, except major entry points.
Depending on how one chooses to look at it, the "... ends here" line
is not really a heading that begins a section, because it should never
have a "section" body (after all it marks eof).
If the file is rather short, then I left "Code:" as the only section
that contains code. Otherwise I split the file into multiple sibling
sections. The "Code:" section continues to contain `require' and
`declare-function' forms and other such "front matter".
If and only if I have split the code into multiple sections anyway,
then I also added an additional section named just "_" before the
`provide' form and shortly before the "...end here" line. This
section could also be called "Back matter", but I feel it would be
distracting to be that explicit about it. (The IMO unnecessary but
unfortunately still obligatory "... ends here" line is already
distracting enough as far as I am concerned.)
Before this commit some libraries already uses section headings, some
of them consistently. When a library already had some headings, then
this commit often sticks to that style, even at the cost inconsistent
styling across all libraries.
A very limited number of variable and function definitions have to be
moved around because they would otherwise end up in sections they do
not belong into.
Sections, including but not limited to their heading, can and should
be further improved in the future.
In practice this probably does not make a difference or we would
have heard about it many times, but better be safe than sorry.
Process sentinels are called not only when the process has finished
but also on other state changes.
When running "notmuch" we use its full path but when displaying the
command to the user we show just its name for readability reasons.
Avoid passing around both representations because it is very easy
to get the name from the path.
Notmuch itself uses the involved functions just for "notmuch" but
there might be extensions that use them for other executable so we
forgo other potential simplifications.
The buffer of the error process is accessible using `process-buffer'.
We still have to store the error-buffer in the non-error process
because for that process `process-buffer' obviously returns its own
buffer.
We no longer support Emacs releases before version 25.1.
Also adjust the sentinels which only had to deal with
an error file when using an older Emacs release was used.
These functions are used as action/notify functions. That dictates
the appropriate function signatures but even though these functions
are not used for anything else they use incompatible signatures,
forcing the callers to use lambda expressions to deal with these
incompatibilities.
Fix that by adjusting the function signatures to the needs of the
only intended callers.
Two of these functions were defined as commands but because the
interactive form did not return the mandatory arguments, we know
that nobody (successfully) used these as commands.
In one case we move the location of a y-or-n-p prompt.
This reverts commit f9fbd1ee3b.
Emacs provides a mechanism for avoiding wiping out buffer-local
variables: marking them as "permanent local", which essentially
means "don't wip out the local value when enabling major-mode".
(put 'the-variable 'permanent-local t)
See (info "(elisp)Creating Buffer-Local").
Whether refreshing the buffer contents should involve re-enable the
mode is a different question, which should not be decided based on
the fact that we want keep the value of some random variable, not
least because some other (e.g. cache) variables are likely expected
to be wiped.
One should never bind unnamed commands in keymaps because doing that
makes it needlessly hard for users to change these bindings.
Replace such anonymous bindings with named commands that are generated
using macros and some boilerplate. Using macros is better than using a
simple loop because that makes it possible for `find-function' to find
the definitions. Eat your boilerplate--it forms character.
Admittedly this approach is quite ugly and it might be better to teach
the original commands to support different buffers directly instead of
requiring wrapper commands to do just that.
Never-the-less as a short-term solution this is better than what we
had before.
Inline a simplified version of `notmuch-documentation-first-line'
into its only caller. The new code snippet differs from the
removed function in that it returns nil instead of the empty string
for symbols that have no function documentation. That value is
ultimately used as an argument to `concat', which treats nil like
the empty string. So we can do the logical thing without changing
the behavior.
Since [1: f8bdba37] no key is bound to this command and it is
redundant because the behavior of `push-command' is identical
when called as a command.
1: f8bdba37d3
emacs: tree: remove binding for pressing button in message pane
We could just have switched to using `cl-remove-if-not' instead,
but the two uses of the *remove-if-not function are pretty strange
to begin with so we refactor to not use any such function at all.
The first sentence should fit on the first line. It is okay if
the first sentence/line does not contain all the information that
the rest of the doc-string covers.
Previously it was defined in "notmuch-hello.el" and its name contained
"hello" solely because it replaced an anonymous function that was
mistakenly only bound in `notmuch-hello-mode-map'. But it makes more
sense to bind it in all notmuch modes and even if we did not change
that aspect it still would make no sense to have "hello" in its name.
Notmuch requires at least version 25 of Emacs now.
Adjust comments that previously referenced version 24 specifically,
even though they also apply to later releases. Remove documentation
and code that no longer applies.
- `mm-shr' no longer references `gnus-inhibit-images'.
This fixes a regression introduced in [1: 7e20d264]. If the argument
RETURN-ACTION was non-nil then we should pass along the value of that
argument. Instead we passed along the constant symbol `return-action'.
1: 7e20d26480
emacs: Fix mail composition under Emacs 23
Key bindings should not be defined at the top-level but inside
a `defvar' form. Doing it at the top-level makes it harder to
reliably customize key bindings.
With text-quoting-style 'grave keeps "'" and "`" quotes unaltered
for further processing done by this code (regardless of locale...).
The tools that read the reStructuredText markup generated can do
their styling instead.
Added temporary conversions of ' and ` to \001 and \002 so that
's and `s outside of `...' and `...` are converted separately
('s restored back to ' and `s converted to \`).
Both `...' and `...` are finally "converted" to `...` (not ``...``).
https://docutils.sourceforge.io/docs/user/rst/quickref.html documents
that as `interpreted text`:
"The rendering and meaning of interpreted text is domain- or
application-dependent. It can be used for things like index
entries or explicit descriptive markup (like program identifiers)."
Which looks pretty much right.
Currently `message-send-hook` functions are being called twice: In
notmuch send common when `notmuch-mua-send-hook` functions are
run (which by default includes `notmuch-mua-message-send-hook`) and in
`message-send` itself.
Because `message-send-hook` functions are run in `message-send` itself,
we don't need also need to run them before we delegate to `message-send`
Calling `notmuch-mua-message-send-hook` resulted in functions in
`message-send-hook` to be called twice. This causes bugs in
non-idempotent hook functions.
Emacs face definition forms are either
((DISPLAY . PLIST)
(DISPLAY . PLIST))
or
((DISPLAY PLIST) ;For backward compatibility.
(DISPLAY PLIST))
Commit a2388bc56e (2020-08-08) follows
neither of the correct formats. It defines:
`((((class color) (background light))
,@(and (>= emacs-major-version 27) '(:extend t))
(:background "#f0f0f0"))
(((class color) (background dark))
,@(and (>= emacs-major-version 27) '(:extend t))
(:background "#303030")))
which produces:
((DISPLAY
:extend t (:background "#f0f0f0"))
(DISPLAY
:extend t (:background "#303030")))
And that is wrong format.
This change fixes the face definition form to produce:
((DISPLAY
:extend t :background "#f0f0f0")
(DISPLAY
:extend t :background "#303030"))
which follows the (DISPLAY . PLIST) format (see above).
This means that notmuch commands obey display-buffer-alist so the user
can customize how buffers show up.
It also permits the use of C-x 4 4, C-x 5 5 and C-x t t, available in
Emacs 28. For example, one can use C-x 4 4 M-x notmuch-jump-search RET
to open a saved search in another window rather than the current window.
Or in notmuch-search mode, C-x 5 5 RET to view the message at point in
a new frame.
notmuch-tree has custom buffer display logic, so bind
display-buffer-overriding-action to make pop-to-buffer-same-window
behave exactly as switch-to-buffer while that function is running.
Now that notmuch-tree-next-thread acts more like its notmuch-show
counterpart, let's update the binding to move to the next thread after
archiving.
Signed-off-by: William Casarin <jb55@jb55.com>
This introduces a new function called
notmuch-tree-next-thread-from-search which is analogous to
notmuch-show-next-thread. It will switch to the next or previous
thread from the parent search results.
We rename notmuch-tree-{prev,next}-thread to a more descriptive
notmuch-tree-{prev,next}-thread-in-tree to reflect the fact that it
only moves to the next thread in the current tree.
notmuch-tree-next-thread now switches to the next thread in the
current tree first, but if there are none, it looks for the next tree
in the search results.
This makes notmuch-tree feel more like notmuch-show when using the
M-Enter, M-n and M-p bindings.
Signed-off-by: William Casarin <jb55@jb55.com>
This variable will be used in a similar fashion to
notmuch-show-parent-buffer. It will be used to navigate between
threads from the parent search buffer.
Signed-off-by: William Casarin <jb55@jb55.com>
Previously in message-show mode message's first header line (From
header) was always indented, even if user had turned thread
indentation off with "<" (notmuch-show-toggle-thread-indentation)
command.
This change modifies notmuch-show-insert-headerline function so that
it doesn't indent the first header line if notmuch-show-indent-content
variable is nil.
This change also modifies tests so that they expect this new output
format:
test/emacs-show.expected-output/notmuch-show-indent-thread-content-off
Doing that is better than using an `autoload' form because the latter
may result in dependencies getting hidden and indeed it turns out we
have to declare `notmuch-jump' in "notmuch-tag.el".
This function is being autoloaded using an autoload cookie, so it
shouldn't additionally be autoloaded using an `autoload' form.
When building libraries we don't actually load the autoloads file and
dropping the `autoload' form results in an error, which reveals a so
far unspecified dependency: `notmuch-tree' needs `notmuch-jump'.
Before this commit compiling (or even just loading) `notmuch-tree'
resulted in `notmuch-jump' being loaded because the former requires
`notmuch-lib', which autoloaded `notmuch-jump-search'.
The bug was that this dependency was not explicitly specified, which
we fix by adding the respective `require' form.
- The first sentence should fit on the first line in full. This is
even the case when that causes the line to get a bit long. If it
gets very long, then it should be made shorter.
- Even even the second sentence would fit on the first line, if it
just provides some details, then it shouldn't be done.
- Symbols are quoted like `so'.
- There is no clear rule on how to (not) quote non-atomic
s-expressions, but quoting like '(this) is definitely weird.
- It is a good idea to remember that \" becomes " and to take
that in mind when adjusting the automatic filling by hand.
- Use the imperative form.
- Arguments are written in all uppercase.
Use `makefile-gmake-mode' instead of `makefile-mode' because the
former also highlights ifdef et al. while the latter does not.
"./Makefile.global" and one "Makefile.local" failed to specify any
major mode at all but doing so is necessary because Emacs does not
automatically figure out that these are Makefiles (of any flavor).
Since Emacs 27 each face has to be explicitly configured to "extend
to the edge of the window". Without doing that the face used for
the newline character only has an effect that spans "one character"
(i.e. it looks like there is a single trailing space character).
We don't want that so extend the face in Emacs 27, so that it looks
the same as it did in older Emacs releases. We have to do this
conditionally, otherwise older Emacsen would choke on it.
It's a bit weird to avoid having to write the "(setq ... )" more than
once, just because we can. In a language that uses '=' for the same
purpose we also happily use that once per assignment.
While there are no benefit to using just one 'setq' there are some
drawbacks. It is not always clear on first what is a key and what a
value and as a result it is easy to make a mistake. Also it becomes
harder to comment out just one assignment.
Most people who write lots of lisp tend to only sparsely use empty
"separator" lines within forms. In lisp they feel unnecessary and
since most files stick to this convention we get a bit confused
when there are extra empty lines. It feels like the s-expressions
are falling into pieces.
All of this is especially true between a function's doc-string and
body because the doc-string is colored differently, which visually
already separates it quite sufficiently from the code that follows.
In notmuch-show buffer insert invisible U+200E LEFT-TO-RIGHT MARK
character at the beginning of message header paragraph if the From
header contains a right-to-left character. This ensures that the
header paragraph is always rendered in left-to-right mode.
See Emacs Lisp reference manual section "(elisp) Bidirectional
Display" for more info.
Fixed emacs docstrings to be consistent. No functional change.
- removed some (accidental) indentation
- removed some trailing newlines
- added trailing periods where missing (some exclusions)
Before this change, `load-prefer-newer' was ignored.
Set NOERROR and MUST-SUFFIX arguments of `load' to t, and NOSUFFIX
argument to nil, to preserve the behaviour of the deleted `let' form.
Starting with Emacs 27 the old `cl' implementation is finally
considered obsolete. Previously its use was strongly discouraged
at run-time but one was still allowed to use it at compile-time.
For the most part the transition is very simple and boils down to
adding the "cl-" prefix to some symbols. A few replacements do not
follow that simple pattern; e.g. `first' is replaced with `car',
even though the alias `cl-first' exists, because the latter is not
idiomatic emacs-lisp.
In a few cases we start using `pcase-let' or `pcase-lambda' instead
of renaming e.g. `first' to `car'. That way we can remind the reader
of the meaning of the various parts of the data that is being
deconstructed.
An obsolete `lexical-let' and a `lexical-let*' are replaced with their
regular variants `let' and `let*' even though we do not at the same
time enable `lexical-binding' for that file. That is the right thing
to do because it does not actually make a difference in those cases
whether lexical bindings are used or not, and because this should be
enabled in a separate commit.
We need to explicitly depend on the `cl-lib' package because Emacs
24.1 and 24.2 lack that library. When using these releases we end
up using the backport from GNU Elpa.
We need to explicitly require the `pcase' library because
`pcase-dolist' was not autoloaded until Emacs 25.1.
This is the non-deprecated way to use completing-read. Additionally
the old use was broken when using ivy for completing-read. For user's
using completing-read-default they won't see the default URL now, but
if they hit enter it will be visited. Alternatively they can select
it with M-n.
From the completing-read documentation for initial-input:
This feature is deprecated--it is best to pass nil for INITIAL-INPUT
and supply the default value DEF instead. The user can yank the
default value into the minibuffer easily using M-n.
Additionally collection is now all urls, rather than all but the
first. I'm not sure why "(cdr urls)" was previously done.
