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scripts: kernel-doc: allow passing desired Sphinx C domain dialect

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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 commit is contained in:
Mauro Carvalho Chehab 2020-11-17 17:53:05 +01:00 • committed by Paolo Bonzini
parent 0c77185233
commit 486966e4a4
2 changed files with 48 additions and 8 deletions
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5
docs/sphinx/kerneldoc.py
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@ -69,6 +69,11 @@ class KernelDocDirective(Directive):
env = self.state.document.settings.env
cmd = env.config.kerneldoc_bin + ['-rst', '-enable-lineno']
# Pass the version string to kernel-doc, as it needs to use a different
# dialect, depending what the C domain supports for each specific
# Sphinx versions
cmd += ['-sphinx-version', sphinx.__version__]
filename = env.config.kerneldoc_srctree + '/' + self.arguments[0]
export_file_patterns = []