Freeform sections with titles are currently generating a TOC entry for
the first paragraph in the section after the header, which is not what
we want.
(Easiest to observe directly in the QMP reference manual's
"Introduction" section.)
When freeform sections are parsed, we create both a section header *and*
an empty, title-less section. This causes some problems with sphinx's
post-parse tree transforms, see also 2664f317 - this is a similar issue:
Sphinx doesn't like section-less titles and it also doesn't like
title-less sections.
Modify qapidoc.py to parse text directly into the preceding section
title as child nodes, eliminating the section duplication. This removes
the extra text from the TOC.
Only very, very lightly tested: "it looks right at a glance" ™️. I am
still in the process of rewriting qapidoc, so I didn't give it much
deeper thought.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20240822204803.1649762-1-jsnow@redhat.com>
In newer versions of Sphinx the env.doc2path() API is going to change
to return a Path object rather than a str. This was originally visible
in Sphinx 8.0.0rc1, but has been rolled back for the final 8.0.0
release. However it will probably emit a deprecation warning and is
likely to change for good in 9.0:
https://github.com/sphinx-doc/sphinx/issues/12686
Our use in depfile.py assumes a str, and if it is passed a Path
it will fall over:
Handler <function write_depfile at 0x77a1775ff560> for event 'build-finished' threw an exception (exception: unsupported operand type(s) for +: 'PosixPath' and 'str')
Wrapping the env.doc2path() call in str() will coerce a Path object
to the str we expect, and have no effect in older Sphinx versions
that do return a str.
Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2458
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240729120533.2486427-1-peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
For any code literal blocks inside of a qmp-example directive, apply and
enforce the QMP lexer/highlighter to those blocks.
This way, you won't need to write:
```
.. qmp-example::
:annotated:
Blah blah
.. code-block:: QMP
-> { "lorem": "ipsum" }
```
But instead, simply:
```
.. qmp-example::
:annotated:
Blah blah::
-> { "lorem": "ipsum" }
```
Once the directive block is exited, whatever the previous default
highlight language was will be restored; localizing the forced QMP
lexing to exclusively this directive.
Note, if the default language is *already* QMP, this directive will not
generate and restore redundant highlight configuration nodes. We may
well decide that the default language ought to be QMP for any QAPI
reference pages, but this way the directive behaves consistently no
matter where it is used.
Signed-off-by: John Snow <jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240717021312.606116-5-jsnow@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This is a directive that creates a syntactic sugar for creating
"Example" boxes very similar to the ones already used in the bitmaps.rst
document, please see e.g.
https://www.qemu.org/docs/master/interop/bitmaps.html#creation-block-dirty-bitmap-add
In its simplest form, when a custom title is not needed or wanted, and
the example body is *solely* a QMP example:
```
.. qmp-example::
{body}
```
is syntactic sugar for:
```
.. admonition:: Example:
.. code-block:: QMP
{body}
```
When a custom, plaintext title that describes the example is desired,
this form:
```
.. qmp-example::
:title: Defrobnification
{body}
```
Is syntactic sugar for:
```
.. admonition:: Example: Defrobnification
.. code-block:: QMP
{body}
```
Lastly, when Examples are multi-step processes that require non-QMP
exposition, have lengthy titles, or otherwise involve prose with rST
markup (lists, cross-references, etc), the most complex form:
```
.. qmp-example::
:annotated:
This example shows how to use `foo-command`::
{body}
For more information, please see `frobnozz`.
```
Is desugared to:
```
.. admonition:: Example:
This example shows how to use `foo-command`::
{body}
For more information, please see `frobnozz`.
```
Note that :annotated: and :title: options can be combined together, if
desired.
The primary benefit here being documentation source consistently using
the same directive for all forms of examples to ensure consistent visual
styling, and ensuring all relevant prose is visually grouped alongside
the code literal block.
Note that as of this commit, the code-block rST syntax "::" does not
apply QMP highlighting; you would need to use ".. code-block:: QMP". The
very next commit changes this behavior to assume all "::" code blocks
within this directive are QMP blocks.
Signed-off-by: John Snow <jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240717021312.606116-4-jsnow@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Factor out the compatibility parser helper into a base class, so it can
be shared by other directives.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240717021312.606116-3-jsnow@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
In general, the Use_SSI workaround is no longer needed, and neither is
the pre-1.6 logging shim for kerneldoc.
Signed-off-by: John Snow <jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20240703175235.239004-3-jsnow@redhat.com
[rebased on top of origin/master. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
When a command's arguments are specified as an explicit type T,
generated documentation points to the members of T.
Example:
##
# @announce-self:
#
# Trigger generation of broadcast RARP frames to update network
[...]
##
{ 'command': 'announce-self', 'boxed': true,
'data' : 'AnnounceParameters'}
generates
"announce-self" (Command)
-------------------------
Trigger generation of broadcast RARP frames to update network
[...]
Arguments
~~~~~~~~~
The members of "AnnounceParameters"
Except when the command takes its arguments unboxed , i.e. it doesn't
have 'boxed': true, we generate *nothing*. A few commands have a
reference in their doc comment to compensate, but most don't.
Example:
##
# @blockdev-snapshot-sync:
#
# Takes a synchronous snapshot of a block device.
#
# For the arguments, see the documentation of BlockdevSnapshotSync.
[...]
##
{ 'command': 'blockdev-snapshot-sync',
'data': 'BlockdevSnapshotSync',
'allow-preconfig': true }
generates
"blockdev-snapshot-sync" (Command)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Takes a synchronous snapshot of a block device.
For the arguments, see the documentation of BlockdevSnapshotSync.
[...]
Same for event data.
Fix qapidoc.py to generate the reference regardless of boxing. Delete
now redundant references in the doc comments.
Fixes: 4078ee5469 (docs/sphinx: Add new qapi-doc Sphinx extension)
Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240628112756.794237-1-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Sphinx does not like sections without titles, because it wants to
convert every section into a reference. When there is no title, it
struggles to do this and transforms the tree inproperly.
Depending on the rST used, this may result in an assertion error deep in
the docutils HTMLWriter.
(Observed when using ".. admonition:: Notes" under such a section - When
this is transformed with its own <title> element, Sphinx is fooled into
believing this title belongs to the section and incorrect mutates the
docutils tree, leading to errors during rendering time.)
When parsing an untagged section (free paragraphs), skip making a hollow
section and instead append the parse results to the prior section.
Many Bothans died to bring us this information.
The resulting output changes are basically invisible.
Signed-off-by: John Snow <jsnow@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240626222128.406106-8-jsnow@redhat.com>
[Mention output changes in commit message]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Change get_doc_indented() to preserve indentation on all subsequent text
lines, and create a compatibility dedent() function for qapidoc.py that
removes indentation the same way get_doc_indented() did.
This is being done for the benefit of a new qapidoc generator which
requires that indentation in argument and features sections are
preserved.
Prior to this patch, a section like this:
```
@name: lorem ipsum
dolor sit amet
consectetur adipiscing elit
```
would have its body text be parsed into:
```
lorem ipsum
dolor sit amet
consectetur adipiscing elit
```
We want to preserve the indentation for even the first body line so that
the entire block can be parsed directly as rST. This patch would now
parse that segment into:
```
lorem ipsum
dolor sit amet
consectetur adipiscing elit
```
This is helpful for formatting arguments and features as field lists in
rST, where the new generator will format this information as:
```
:arg type name: lorem ipsum
dolor sit amet
consectetur apidiscing elit
```
...and can be formed by the simple concatenation of the field list
construct and the body text. The indents help preserve the continuation
of a block-level element, and further allow the use of additional rST
block-level constructs such as code blocks, lists, and other such
markup.
This understandably breaks the existing qapidoc.py; so a new function is
added there to dedent the text for compatibility. Once the new generator
is merged, this function will not be needed any longer and can be
dropped.
I verified this patch changes absolutely nothing by comparing the
md5sums of the QMP ref html pages both before and after the change, so
it's certified inert. QAPI test output has been updated to reflect the
new strategy of preserving indents for rST.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240626222128.406106-6-jsnow@redhat.com>
[Lost commit message paragraph restored]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
In a forthcoming series that adds a new QMP documentation generator, it
will be helpful to have a linting baseline. However, there's no need to
shuffle around the deck chairs too much, because most of this code will
be removed once that new qapidoc generator (the "transmogrifier") is in
place.
To ease my pain: just turn off the black auto-formatter for most, but
not all, of qapidoc.py. This will help ensure that *new* code follows a
coding standard without bothering too much with cleaning up the existing
code.
Code that I intend to keep is still subject to the delinting beam.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240626222128.406106-5-jsnow@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This function has been unused since since commit
fd62bff901 (sphinx/qapidoc: Drop code to generate doc for simple
union tag).
Signed-off-by: John Snow <jsnow@redhat.com>
Message-ID: <20240626222128.406106-4-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
A previous commit narrowed the type of .visit_alternate_type()
parameter @variants from QAPISchemaVariants to QAPISchemaAlternatives.
Rename it to @alternatives.
One of them passes @alternatives to helper function
gen_visit_alternate(). Rename its @variants parameter to
@alternatives as well.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
The previous commit narrowed the type of .visit_object_type()
parameter @variants from QAPISchemaVariants to QAPISchemaBranches.
Rename it to @branches.
Same for .visit_object_type_flat().
A few of these pass @branches to helper functions:
QAPISchemaGenRSTVisitor.visit_object_type() to ._nodes_for_members()
and ._nodes_for_variant_when(), and
QAPISchemaGenVisitVisitor.visit_object_type() to
gen_visit_object_members(). Rename the helpers' @variants parameters
to @branches as well.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Since the previous commit, QAPIDoc.Section.name is either
None (untagged section) or the section's tag string ('Returns',
'@name', ...). Rename it to .tag.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240216145841.2099240-9-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Improve the message for an empty tagged section from
empty doc section 'Note'
to
text required after 'Note:'
and the message for an empty argument or feature description from
empty doc section 'foo'
to
text required after '@foo:'
Improve the error position to refer to the beginning of the empty
section instead of its end.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240216145841.2099240-8-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Commit 4e99f4b12c (qapi: Drop simple unions) eliminated implicitly
defined union branch types, except for the empty object type
'q_empty'. QAPISchemaGenRSTVisitor._nodes_for_members() still has
code to generate documentation for implicitly defined union branch
types. It does nothing for 'q_empty'. Simplify.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240216145841.2099240-5-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
QAPISchemaGenRSTVisitor._nodes_for_members() has a special case to
auto-generate documentation for a union tag member of implicit (enum)
type that lacks documentation.
This was useful for simple unions, where the tag member's type was
implicitly. The only implicit enum type left today is 'QType'. Not
worth a special case. Drop. No change to generated documentation.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240205074709.3613229-6-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We can't just embed labels directly into files like qemu-options.hx which
are included from multiple top-level rST files, because Sphinx sees the
labels as duplicate: https://github.com/sphinx-doc/sphinx/issues/9707
So add an optional argument to the SRST directive which causes a label
of the form '.. _DOCNAME-HXFILE-LABEL:' to be emitted, where 'DOCNAME'
is the name of the top level rST file, 'HXFILE' is the filename of the
.hx file, and 'LABEL' is the text provided within the 'SRST()' directive.
Using the DOCNAME of the top-level rST document means that it is unique
even when the .hx file is included from two different documents, as is
the case for qemu-options.hx
Now where the Xen PV documentation refers to the documentation for the
-initrd command line option, it can emit a link directly to it as
'<system/invocation-qemu-options-initrd>'.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240130190348.682912-1-dwmw2@infradead.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Pylint advises:
docs/sphinx/qapidoc.py:518:12: W0707: Consider explicitly re-raising using 'raise ExtensionError(str(err)) from err' (raise-missing-from)
>From its manual:
Python's exception chaining shows the traceback of the current
exception, but also of the original exception. When you raise a
new exception after another exception was caught it's likely that
the second exception is a friendly re-wrapping of the first
exception. In such cases `raise from` provides a better link
between the two tracebacks in the final error.
Makes sense, so do it.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20231025092159.1782638-2-armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Save a bit of build time by passing the number of jobs option to
sphinx.
We cannot use the -j option from make because meson does not support
setting build time parameters for custom targets. Use nproc instead or
the equivalent sphinx option "-j auto", if that is available (version
>=1.7.0).
Also make sure our plugins support parallelism and report it properly
to sphinx. Particularly, implement the merge_domaindata method in
DBusDomain that is used to merge in data from other subprocesses.
Tested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Message-Id: <20230503203947.3417-2-farosas@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
QAPI doc comments are for QMP users: they go into the "QEMU QMP
Reference Manual" and the "QEMU Storage Daemon QMP Reference Manual".
The doc comment TODO sections are for somebody else, namely for the
people who can do: developers. Do not emit them into the user
manuals.
This elides the following TODOs:
* SchemaInfoCommand
# TODO: @success-response (currently irrelevant, because it's QGA, not QMP)
This is a note to developers adding introspection to the guest
agent. It makes no sense to users.
* @query-hotpluggable-cpus
# TODO: Better documentation; currently there is none.
This is a reminder for developers. It doesn't help users.
* @device_add
# TODO: This command effectively bypasses QAPI completely due to its
# "additional arguments" business. It shouldn't have been added to
# the schema in this form. It should be qapified properly, or
# replaced by a properly qapified command.
Likewise.
Eliding them is an improvement.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230428105429.1687850-7-armbru@redhat.com>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Currently, the kerneldoc Sphinx plugin doesn't honour the
--enable-werror configure option, so its warnings are never fatal.
This is because although we do pass sphinx-build the -W switch, the
warnings from kerneldoc are produced by the scripts/kernel-doc script
directly and don't go through Sphinx's "emit a warning" function.
When --enable-werror is in effect, pass sphinx-build an extra
argument -Dkerneldoc_werror=1. The kerneldoc plugin can then use
this to determine whether it should be passing the kernel-doc script
-Werror.
We do this because there is no documented mechanism for
a Sphinx plugin to determine whether sphinx-build was
passed -W or not; if one is provided then we can switch to
that at a later date:
https://github.com/sphinx-doc/sphinx/issues/11239
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230314114431.1096972-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
SphinxDirective was added with sphinx 1.8 (2018-09-13).
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220104074649.1712440-1-marcandre.lureau@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Add a new dbus-doc directive to import D-Bus interfaces documentation
from the introspection XML. The comments annotations follow the
gtkdoc/kerneldoc style, and should be formatted with reST.
Note: I realize after the fact that I was implementing those modules
with sphinx 4, and that we have much lower requirements. Instead of
lowering the features and code (removing type annotations etc), let's
have a warning in the documentation when the D-Bus modules can't be
used, and point to the source XML file in that case.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Instead of building the condition documentation from a list of string,
use the result generated from QAPISchemaIfCond.docgen().
This changes the generated documentation from:
- COND1, COND2... (where COND1, COND2 are Literal nodes, and ',' is Text)
to:
- COND1 and COND2 (the whole string as a Literal node)
This will allow us to generate more complex conditions in the following
patches, such as "(COND1 and COND2) or COND3".
Adding back the differentiated formatting is left to the wish list.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210804083105.97531-6-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[TODO comment added]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Mechanical change, except for a new assertion in
QAPISchemaEntity.ifcond().
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210804083105.97531-3-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Rebased with obvious conflicts, commit message adjusted]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Rename QAPIError to QAPISourceError, and then create a new QAPIError
class that serves as the basis for all of our other custom exceptions,
without specifying any class properties.
This leaves QAPIError as a package-wide error class that's suitable for
any current or future errors.
(Right now, we don't have any errors that DON'T also want to specify a
Source location, but this MAY change. In these cases, a common abstract
ancestor would be desired.)
Add docstrings to explain the intended function of each error class.
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20210421192233.3542904-2-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
These sections need to be wrapped in a block-level element, such as
Paragraph in order for them to be rendered into Texinfo correctly.
Before (e.g.):
<section ids="qapidoc-713">
<title>If</title>
<literal>defined(CONFIG_REPLICATION)</literal>
</section>
became:
.SS If
\fBdefined(CONFIG_REPLICATION)\fP.SS \fBBlockdevOptionsReplication\fP (Object)
...
After:
<section ids="qapidoc-713">
<title>If</title>
<paragraph>
<literal>defined(CONFIG_REPLICATION)</literal>
</paragraph>
</section>
becomes:
.SS If
.sp
\fBdefined(CONFIG_REPLICATION)\fP
.SS \fBBlockdevOptionsReplication\fP (Object)
...
Reported-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210406141909.1992225-2-jsnow@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In commit e2bbc4eaa7 we changed the QAPI modules to name the built-in
module "./builtin" rather than None, but forgot to update the Sphinx
plugin. The effect of this was that when the plugin generated a dependency
file it was including a bogus dependency on a non-existent file named
"builtin", which meant that ninja would run Sphinx and rebuild all
the documentation every time even if nothing had changed.
Update the plugin to use the new name of the builtin module.
Fixes: e2bbc4eaa7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Message-id: 20210212161311.28915-1-peter.maydell@linaro.org
This reverts commit fd68a72875cf318f4310726f842139119c5f45d5. We're
done with the update of kernel-doc and we can restore kernel-doc's
functionality.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When kernel-doc is called via kerneldoc.py, there's no need to
auto-detect the Sphinx version, as the Sphinx module already
knows it. So, add an optional parameter to allow changing the
Sphinx dialect.
As kernel-doc can also be manually called, keep the auto-detection
logic if the parameter was not specified. On such case, emit
a warning if sphinx-build can't be found at PATH.
I ended using a suggestion from Joe for using a more readable
regex, instead of using a complex one with a hidden group like:
m/^(\d+)\.(\d+)(?:\.?(\d+)?)/
in order to get the optional <patch> argument.
Thanks-to: Joe Perches <joe@perches.com>
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201117165312.118257-23-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This reverts commit 152d1967f6.
We will replace the commit with the fix from Linux.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201117165312.118257-16-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Preserve bisectability while we update scripts/kernel-doc from Linux.
Without this patch, building with Sphinx 3 would break while we
revert our own Sphinx 3 support and replace it with Linux's.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch adds a new 'coroutine' flag to QMP command definitions that
tells the QMP dispatcher that the command handler is safe to be run in a
coroutine.
The documentation of the new flag pretends that this flag is already
used as intended, which it isn't yet after this patch. We'll implement
this in another patch in this series.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201005155855.256490-9-kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Some of our documentation is auto-generated from documentation
comments in the JSON schema.
For Sphinx, rather than creating a file to include, the most natural
way to handle this is to have a small custom Sphinx extension which
processes the JSON file and inserts documentation into the rST
file being processed.
This is the same approach that kerneldoc and hxtool use.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-8-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Comment and doc string formatting tweaked, unused method dropped,
a few line breaks tweaked to follow PEP 8 more closely, MAINTAINERS
section QAPI updated]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
The kernel-doc Sphinx plugin and associated script currently emit
'c:type' directives for "struct foo" documentation.
Sphinx 3.0 warns about this:
/home/petmay01/linaro/qemu-from-laptop/qemu/docs/../include/exec/memory.h:3: WARNING: Type must be either just a name or a typedef-like declaration.
If just a name:
Error in declarator or parameters
Invalid C declaration: Expected identifier in nested name, got keyword: struct [error at 6]
struct MemoryListener
------^
If typedef-like declaration:
Error in declarator or parameters
Invalid C declaration: Expected identifier in nested name. [error at 21]
struct MemoryListener
---------------------^
because it wants us to use the new-in-3.0 'c:struct' instead.
Plumb the Sphinx version through to the kernel-doc script
and use it to select 'c:struct' for newer versions than 3.0.
Fixes: LP:1872113
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Now that none of our input .hx files have STEXI/ETEXI blocks,
we can remove the code in the Sphinx hxtool extension that
supported parsing them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200306171749.10756-5-peter.maydell@linaro.org
In hxtool files, section headings defined with the DEFHEADING
and ARCHHEADING macros have a trailing ':'
DEFHEADING(Standard options:)
This is for the benefit of the --help output. For consistency
with the rest of the rST documentation, strip any trailing ':'
when we construct headings with the Sphinx hxtool extension.
This makes the table of contents look neater.
This only affects generation of documentation from qemu-options.hx,
which we will start doing in a later commit.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200228153619.9906-23-peter.maydell@linaro.org
Some of our documentation includes sections which are created
by assembling fragments of texinfo from a .hx source file into
a .texi file, which is then included from qemu-doc.texi or
qemu-img.texi.
For Sphinx, rather than creating a file to include, the most natural
way to handle this is to have a small custom Sphinx extension which
reads the .hx file and process it. So instead of:
* makefile produces foo.texi from foo.hx
* qemu-doc.texi says '@include foo.texi'
we have:
* qemu-doc.rst says 'hxtool-doc:: foo.hx'
* the Sphinx extension for hxtool has code that runs to handle that
Sphinx directive which reads the .hx file and emits the appropriate
documentation contents
This is pretty much the same way the kerneldoc extension works right
now. It also has the advantage that it should work for third-party
services like readthedocs that expect to build the docs directly with
sphinx rather than by invoking our makefiles.
In this commit we implement the hxtool extension.
Note that syntax errors in the rST fragments will be correctly
reported to the user with the filename and line number within the
hx file.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200124162606.8787-4-peter.maydell@linaro.org
Import Linux's kernel-doc script as of commit 15e2544ed38a1e, as well
as the Sphinx extension to call kernel-doc according to the arguments
and parameters given to a reStructuredText directive.
The kernel-doc extension accepts a filename, which is relative to
the QEMU source tree root. The extension also notifies Sphinx about the
document dependency on the file, causing the document to be rebuilt when
the file has been changed.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Sphinx, through Pygments, does not like annotated json examples very
much. In some versions of Sphinx (1.7), it will render the non-json
portions of code blocks in red, but in newer versions (2.0) it will
throw an exception and not highlight the block at all. Though we can
suppress this warning, it doesn't bring back highlighting on non-strict
json blocks.
We can alleviate this by creating a custom lexer for QMP examples that
allows us to properly highlight these examples in a robust way, keeping
our directionality and elision notations.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reported-by: Aarushi Mehta <mehta.aaru20@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20190603214653.29369-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
