Some Sphinx improvements

PR for 2 series:
 https://patchew.org/QEMU/20211015105344.152591-1-marcandre.lureau@redhat.com/
 https://patchew.org/QEMU/20211004215238.1523082-1-jsnow@redhat.com/
 -----BEGIN PGP SIGNATURE-----
 
 iQJQBAABCAA6FiEEh6m9kz+HxgbSdvYt2ujhCXWWnOUFAmGI508cHG1hcmNhbmRy
 ZS5sdXJlYXVAcmVkaGF0LmNvbQAKCRDa6OEJdZac5axBD/4oyGvcEiuN6PfqR5Er
 dCO8K2rOpeBgdpP88N26sdnP8xUAXfkijxPNbqv0MfRTxXPnEMDu6vHF6zH/2q63
 kL9Qhjz6LZuRM9q2HgnTnJUM2Xnmsvp9QQyHI2M6vF+YHl/KVliGD8ICdPRm4zCb
 iYXJTnsCN8Fohc+mX0XiKD42lRv1GMpbuqPCKhjKNSwDDDo+wg6ByycPKa9iLe5S
 F3Peo1Sr/UkmGQ1icfRheXk9fZvVtoFVG68TWZzB41A+QOai63QkgjlcT7ELtoe/
 bzOf6xZfIcKs1jHOVDKDnA5YzkAZlHKg+7tZpXdND62bRt2p1lLeeYiRTQAGnd+e
 wzKcWkBcwdtnN8ow/BUVwkdGoyXspJHhChhxZMSaaDIsk0oTKhjH4xE+rNu2Nscb
 E0G5+DwgP5m1rReLqGtbpD3AkndbnLE/AglxhVABbHlfI8ieB1GWc+8AXqaXIjBs
 ed7wGL+pOsdKMU+2PIKjc/4uuOwdLjiGK6UGAEZLS1XN9N3Kz9+PlTDGHPMw9Fw3
 wYLMXvfwMfS/myVI7oYF9QvQjX9yMxjES2JHHZ+IMqAwleLXlr2wk119fZ5Vce/M
 eqaXgGwQ6hWFJW6HDvAk7RGCzwuL4MASMvxwV85HyLPdHv2UH/LVpFYjzL/nECt0
 6zZyOdhsM84jdG81SknrMXx/dg==
 =khZf
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/marcandre.lureau/tags/sphinx-pull-request' into staging

Some Sphinx improvements

PR for 2 series:
https://patchew.org/QEMU/20211015105344.152591-1-marcandre.lureau@redhat.com/
https://patchew.org/QEMU/20211004215238.1523082-1-jsnow@redhat.com/

# gpg: Signature made Mon 08 Nov 2021 10:01:03 AM CET
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg:                issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]

* remotes/marcandre.lureau/tags/sphinx-pull-request:
  docs/sphinx: change default role to "any"
  docs: (further) remove non-reference uses of single backticks
  docs: remove non-reference uses of single backticks
  docs/sphinx: add 's' keyboard binding to focus search
  docs/sphinx: set navigation_with_keys=True
  meson: drop sphinx_template_files
  meson: drop sphinx_extn_depends
  tests/qapi-schema/meson: add depfile to sphinx doc
  docs/sphinx: add templates files to generated depfile
  docs/sphinx: add static files to generated depfile
  docs/sphinx: add loaded modules to generated depfile

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

docs/conf.py

@@ -74,7 +74,7 @@ needs_sphinx = '1.6'
 extensions = ['kerneldoc', 'qmp_lexer', 'hxtool', 'depfile', 'qapidoc']
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = [os.path.join(qemu_docdir, '_templates')]
 
 # The suffix(es) of source filenames.
 # You can specify multiple suffix as a list of string:
@@ -85,6 +85,11 @@ source_suffix = '.rst'
 # The master toctree document.
 master_doc = 'index'
 
+# Interpret `single-backticks` to be a cross-reference to any kind of
+# referenceable object. Unresolvable or ambiguous references will emit a
+# warning at build time.
+default_role = 'any'
+
 # General information about the project.
 project = u'QEMU'
 copyright = u'2021, The QEMU Project Developers'
@@ -166,6 +171,7 @@ html_theme = 'sphinx_rtd_theme'
 if LooseVersion(sphinx_rtd_theme.__version__) >= LooseVersion("0.4.3"):
     html_theme_options = {
         "style_nav_header_background": "#802400",
+        "navigation_with_keys": True,
     }
 
 html_logo = os.path.join(qemu_docdir, "../ui/icons/qemu_128x128.png")
@@ -181,6 +187,10 @@ html_css_files = [
     'theme_overrides.css',
 ]
 
+html_js_files = [
+    'custom.js',
+]
+
 html_context = {
     "display_gitlab": True,
     "gitlab_user": "qemu-project",

docs/devel/build-system.rst

@@ -47,14 +47,14 @@ command line options for which a same-named Meson option exists;
 dashes in the command line are replaced with underscores.
 
 Many checks on the compilation environment are still found in configure
-rather than `meson.build`, but new checks should be added directly to
+rather than ``meson.build``, but new checks should be added directly to
-`meson.build`.
+``meson.build``.
 
 Patches are also welcome to move existing checks from the configure
-phase to `meson.build`.  When doing so, ensure that `meson.build` does
+phase to ``meson.build``.  When doing so, ensure that ``meson.build`` does
-not use anymore the keys that you have removed from `config-host.mak`.
+not use anymore the keys that you have removed from ``config-host.mak``.
-Typically these will be replaced in `meson.build` by boolean variables,
+Typically these will be replaced in ``meson.build`` by boolean variables,
-``get_option('optname')`` invocations, or `dep.found()` expressions.
+``get_option('optname')`` invocations, or ``dep.found()`` expressions.
 In general, the remaining checks have little or no interdependencies,
 so they can be moved one by one.
 
@@ -298,7 +298,7 @@ comprises the following tasks:
 
  - Add code to perform the actual feature check.
 
- - Add code to include the feature status in `config-host.h`
+ - Add code to include the feature status in ``config-host.h``
 
  - Add code to print out the feature status in the configure summary
    upon completion.
@@ -334,7 +334,7 @@ The other supporting code is generally simple::
 
 For the configure script to parse the new option, the
 ``scripts/meson-buildoptions.sh`` file must be up-to-date; ``make
-update-buildoptions`` (or just `make`) will take care of updating it.
+update-buildoptions`` (or just ``make``) will take care of updating it.
 
 
 Support scripts

docs/devel/fuzzing.rst

@@ -182,10 +182,11 @@ The output should contain a complete list of matched MemoryRegions.
 
 OSS-Fuzz
 --------
-QEMU is continuously fuzzed on `OSS-Fuzz` __(https://github.com/google/oss-fuzz).
+QEMU is continuously fuzzed on `OSS-Fuzz
-By default, the OSS-Fuzz build will try to fuzz every fuzz-target. Since the
+<https://github.com/google/oss-fuzz>`_.  By default, the OSS-Fuzz build
-generic-fuzz target requires additional information provided in environment
+will try to fuzz every fuzz-target. Since the generic-fuzz target
-variables, we pre-define some generic-fuzz configs in
+requires additional information provided in environment variables, we
+pre-define some generic-fuzz configs in
 ``tests/qtest/fuzz/generic_fuzz_configs.h``. Each config must specify:
 
 - ``.name``: To identify the fuzzer config

docs/devel/tcg-plugins.rst

@@ -211,7 +211,7 @@ The hotpages plugin can be configured using the following arguments:
 
 This is an instruction classifier so can be used to count different
 types of instructions. It has a number of options to refine which get
-counted. You can give a value to the `count` argument for a class of
+counted. You can give a value to the ``count`` argument for a class of
 instructions to break it down fully, so for example to see all the system
 registers accesses::
 

docs/interop/live-block-operations.rst

@@ -640,7 +640,7 @@ at this point:
         (QEMU) block-job-complete device=job0
 
 In either of the above cases, if you once again run the
-`query-block-jobs` command, there should not be any active block
+``query-block-jobs`` command, there should not be any active block
 operation.
 
 Comparing 'commit' and 'mirror': In both then cases, the overlay images

docs/meson.build

@@ -37,15 +37,6 @@ endif
 if build_docs
   SPHINX_ARGS += ['-Dversion=' + meson.project_version(), '-Drelease=' + config_host['PKGVERSION']]
 
-  sphinx_extn_depends = [ meson.current_source_dir() / 'sphinx/depfile.py',
-                          meson.current_source_dir() / 'sphinx/hxtool.py',
-                          meson.current_source_dir() / 'sphinx/kerneldoc.py',
-                          meson.current_source_dir() / 'sphinx/kernellog.py',
-                          meson.current_source_dir() / 'sphinx/qapidoc.py',
-                          meson.current_source_dir() / 'sphinx/qmp_lexer.py',
-                          qapi_gen_depends ]
-  sphinx_template_files = [ meson.project_source_root() / 'docs/_templates/footer.html' ]
-
   have_ga = have_tools and config_host.has_key('CONFIG_GUEST_AGENT')
 
   man_pages = {
@@ -77,7 +68,6 @@ if build_docs
                 output: 'docs.stamp',
                 input: files('conf.py'),
                 depfile: 'docs.d',
-                depend_files: [ sphinx_extn_depends, sphinx_template_files ],
                 command: [SPHINX_ARGS, '-Ddepfile=@DEPFILE@',
                           '-Ddepfile_stamp=@OUTPUT0@',
                           '-b', 'html', '-d', private_dir,

docs/sphinx-static/custom.js

@@ -0,0 +1,9 @@
+document.addEventListener('keydown', (event) => {
+    // find a better way to look it up?
+    let search_input = document.getElementsByName('q')[0];
+
+    if (event.code === 'KeyS' && document.activeElement !== search_input) {
+        event.preventDefault();
+        search_input.focus();
+    }
+});

docs/sphinx/depfile.py

@@ -12,6 +12,8 @@
 
 import os
 import sphinx
+import sys
+from pathlib import Path
 
 __version__ = '1.0'
 
@@ -20,8 +22,21 @@ def get_infiles(env):
         yield env.doc2path(x)
         yield from ((os.path.join(env.srcdir, dep)
                     for dep in env.dependencies[x]))
+    for mod in sys.modules.values():
+        if hasattr(mod, '__file__'):
+            if mod.__file__:
+                yield mod.__file__
+    # this is perhaps going to include unused files:
+    for static_path in env.config.html_static_path + env.config.templates_path:
+        for path in Path(static_path).rglob('*'):
+            yield str(path)
 
-def write_depfile(app, env):
+
+def write_depfile(app, exception):
+    if exception:
+        return
+
+    env = app.env
     if not env.config.depfile:
         return
 
@@ -42,7 +57,7 @@ def write_depfile(app, env):
 def setup(app):
     app.add_config_value('depfile', None, 'env')
     app.add_config_value('depfile_stamp', None, 'env')
-    app.connect('env-updated', write_depfile)
+    app.connect('build-finished', write_depfile)
 
     return dict(
         version = __version__,

docs/system/guest-loader.rst

@@ -51,4 +51,4 @@ The full syntax of the guest-loader is::
 
 ``bootargs=<args>``
   This is an optional field for kernel blobs which will pass command
-  like via the `/chosen/module@<addr>/bootargs` node.
+  like via the ``/chosen/module@<addr>/bootargs`` node.

docs/system/i386/sgx.rst

@@ -77,9 +77,9 @@ CPUID
 
 Due to its myriad dependencies, SGX is currently not listed as supported
 in any of Qemu's built-in CPU configuration. To expose SGX (and SGX Launch
-Control) to a guest, you must either use `-cpu host` to pass-through the
+Control) to a guest, you must either use ``-cpu host`` to pass-through the
 host CPU model, or explicitly enable SGX when using a built-in CPU model,
-e.g. via `-cpu <model>,+sgx` or `-cpu <model>,+sgx,+sgxlc`.
+e.g. via ``-cpu <model>,+sgx`` or ``-cpu <model>,+sgx,+sgxlc``.
 
 All SGX sub-features enumerated through CPUID, e.g. SGX2, MISCSELECT,
 ATTRIBUTES, etc... can be restricted via CPUID flags. Be aware that enforcing
@@ -126,7 +126,7 @@ creating VM with SGX.
 Feature Control
 ~~~~~~~~~~~~~~~
 
-Qemu SGX updates the `etc/msr_feature_control` fw_cfg entry to set the SGX
+Qemu SGX updates the ``etc/msr_feature_control`` fw_cfg entry to set the SGX
 (bit 18) and SGX LC (bit 17) flags based on their respective CPUID support,
 i.e. existing guest firmware will automatically set SGX and SGX LC accordingly,
 assuming said firmware supports fw_cfg.msr_feature_control.

include/qemu/module.h

@@ -77,14 +77,14 @@ void module_allow_arch(const char *arch);
 /**
  * DOC: module info annotation macros
  *
- * `scripts/modinfo-collect.py` will collect module info,
+ * ``scripts/modinfo-collect.py`` will collect module info,
  * using the preprocessor and -DQEMU_MODINFO.
  *
- * `scripts/modinfo-generate.py` will create a module meta-data database
+ * ``scripts/modinfo-generate.py`` will create a module meta-data database
  * from the collected information so qemu knows about module
  * dependencies and QOM objects implemented by modules.
  *
- * See `*.modinfo` and `modinfo.c` in the build directory to check the
+ * See ``*.modinfo`` and ``modinfo.c`` in the build directory to check the
  * script results.
  */
 #ifdef QEMU_MODINFO

qapi/block-core.json

@@ -491,11 +491,11 @@
 # @granularity: granularity of the dirty bitmap in bytes (since 1.4)
 #
 # @recording: true if the bitmap is recording new writes from the guest.
-#             Replaces `active` and `disabled` statuses. (since 4.0)
+#             Replaces ``active`` and ``disabled`` statuses. (since 4.0)
 #
 # @busy: true if the bitmap is in-use by some operation (NBD or jobs)
 #        and cannot be modified via QMP or used by another operation.
-#        Replaces `locked` and `frozen` statuses. (since 4.0)
+#        Replaces ``locked`` and ``frozen`` statuses. (since 4.0)
 #
 # @persistent: true if the bitmap was stored on disk, is scheduled to be stored
 #              on disk, or both. (since 4.0)

qemu-options.hx

@@ -1895,8 +1895,8 @@ SRST
         Valid parameters are:
 
         ``grab-mod=<mods>`` : Used to select the modifier keys for toggling
-        the mouse grabbing in conjunction with the "g" key. `<mods>` can be
+        the mouse grabbing in conjunction with the "g" key. ``<mods>`` can be
-        either `lshift-lctrl-lalt` or `rctrl`.
+        either ``lshift-lctrl-lalt`` or ``rctrl``.
 
         ``alt_grab=on|off`` : Use Control+Alt+Shift-g to toggle mouse grabbing.
         This parameter is deprecated - use ``grab-mod`` instead.

tests/qapi-schema/meson.build

@@ -241,7 +241,7 @@ if build_docs
                                output: ['doc-good.txt'],
                                input: files('doc-good.json', 'doc-good.rst'),
                                build_by_default: true,
-                               depend_files: sphinx_extn_depends,
+                               depfile: 'docs.d',
                                # We use -E to suppress Sphinx's caching, because
                                # we want it to always really run the QAPI doc
                                # generation code. It also means we don't
@@ -250,6 +250,8 @@ if build_docs
                                          '-b', 'text', '-E',
                                          '-c', meson.project_source_root() / 'docs',
                                          '-D', 'master_doc=doc-good',
+                                         '-Ddepfile=@DEPFILE@',
+                                         '-Ddepfile_stamp=doc-good.stamp',
                                          meson.current_source_dir(),
                                          meson.current_build_dir()])