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If a file sent to KernelFiles.msg() method doesn't exist, instead
of producing a KeyError, output an error message.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Closes: https://lore.kernel.org/linux-doc/cover.1747719873.git.mchehab+huawei@kernel.org/T/#ma43ae9d8d0995b535cf5099e5381dace0410de04
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <4efa177f2157a7ec009cc197dfc2d87e6f32b165.1747817887.git.mchehab+huawei@kernel.org>
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The KernelDoc class is too complex. Start optimizing it by
placing the kernel-doc parser entry to a separate class.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <28b456f726a022011f0ce5810dbcc26827c1403a.1745564565.git.mchehab+huawei@kernel.org>
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The script library here contain just classes. Remove execution
permission.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <be0b0a5bde82fa09027a5083f8202f150581eb4e.1745564565.git.mchehab+huawei@kernel.org>
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As filenames are expanded using kernel-doc glob, just in case,
use it also when checking for exported symbols.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/21657afdd4f8effe0752a5ec258d74b8a4101f55.1744685912.git.mchehab+huawei@kernel.org
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States are really enums. on Python, enums are actually classes,
as can be seen at:
https://docs.python.org/3/library/enum.html
Yet, I can't see any advantage of derivating the class from
enum class here. So, just place the states on a separate class.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/00cb4e0b8a1545bf7c4401b58213841db5cba2e2.1744685912.git.mchehab+huawei@kernel.org
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If out_msg() returns None, it means that an unknown declaration
was found. Avoid letting the script crash on such case.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/4334d16f14cfd93e611b290fb56c35d236cadcb7.1744685912.git.mchehab+huawei@kernel.org
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Typedefs like
typedef struct phylink_pcs *(*pcs_xlate_t)(const u64 *args);
have a typedef_type that ends with a * and therefore has no word
boundary. Add an extra clause for the final group of the typedef_type so
we only require a word boundary if we match a word.
[mchehab: modify also kernel-doc.py, as we're deprecating the perl version]
Fixes: 7d2c6b1edf79 ("scripts: kernel-doc: fix parsing function-like typedefs")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e0abb103c73a96d76602d909f60ab8fd6e2fd0bd.1744106242.git.mchehab+huawei@kernel.org
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Using just "Re" makes it harder to distinguish from the native
"re" class. So, let's rename it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/4e095ecd5235a3e811ddcf5bad4cfb92f1da0a4a.1744106242.git.mchehab+huawei@kernel.org
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Change the logic which detects internal/external symbols in a way
that we can re-use it when calling via Sphinx extension.
While here, remove an unused self.config var and let it clearer
that self.config variables are read-only. This helps to allow
handling multiple times in parallel if ever needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/6a69ba8d2b7ee6a6427abb53e60d09bd4d3565ee.1744106242.git.mchehab+huawei@kernel.org
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For kerneldoc Sphinx extension, it is useful to display
parsed results only from a single file. Change the logic at
KernelFiles.msg() to allow such usage.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/9f5c0ff2568f34532ca99465fb378241d831d39f.1744106242.git.mchehab+huawei@kernel.org
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The original kernel-doc script has a logic to return warnings
as errors, and to report the number of warnings found, if in
verbose mode.
Implement it to be fully compatible with the original script.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/de33b0cebd9fdf82d8b221bcfe41db7269286222.1744106242.git.mchehab+huawei@kernel.org
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str.removesuffix() was added on Python 3.9, but rstrip()
actually does the same thing, as we just want to remove a single
character. It is also shorter.
So, use it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/f64cc4adef107ada26da4bfb7e4b7002dd783173.1744106242.git.mchehab+huawei@kernel.org
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The logic that handles KBUILD_BUILD_TIMESTAMP is wrong, and adds
a dependency of a third party module (dateutil).
Fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/ffc70a1b741b010365ed82f31611018f24f91ce7.1744106242.git.mchehab+huawei@kernel.org
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Only man output requires a modulename. Move its definition
to the man class.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/583085e3885b0075d16ef9961b4f2ad870f30a55.1744106242.git.mchehab+huawei@kernel.org
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- str.replace count was introduced only in Python 3.13;
- before Python 3.13, f-string dict arguments can't use the same
delimiter of the main string.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e2b8e8361294558dae09236e4b8fbea5d86be5a3.1744106242.git.mchehab+huawei@kernel.org
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Make pylint happier by adding some missing documentation and
addressing a couple of pylint warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/0f9d5473105e4c09c6c41e3db72cc63f1d4d55f9.1744106242.git.mchehab+huawei@kernel.org
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Now that warnings output is deferred to the output plugin, we
need to have an output style for none as well.
So, use the OutputFormat base class on such cases.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/caa1089e16f4609f792ff26731ad9e9c3a6f6b1d.1744106242.git.mchehab+huawei@kernel.org
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We don't want to have warnings displayed for symbols that
weren't output. So, postpone warnings print to the output
plugin, where symbol output is validated.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e6344711e390cf22af02a56bb5dd51ca67c0afb6.1744106242.git.mchehab+huawei@kernel.org
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There is a difference at the way DOC sections are output with
the include mode. Handle such difference properly.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/935d00c6a7c45b25a8be72fad6183fe5a8476cd2.1744106242.git.mchehab+huawei@kernel.org
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The filtering logic was seeking for the DOC name to check for
symbols, but such data is stored only inside a section. Add it
to the output_declaration, as it is quicker/easier to check
the declaration name than to check inside each section.
While here, make sure that the output for both ReST and man
after filtering will be similar to what kernel-doc Perl
version does.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/6d8b77af85295452c0191863ea1041f4195aeaaf.1744106242.git.mchehab+huawei@kernel.org
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With the Pyhton version, the actual output happens after parsing,
from records stored at self.entries.
Ensure that line numbers will be properly stored there and
that they'll produce the desired results at the ReST output.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/5182a531d14b5fe9e1fc5da5f9dae05d66852a60.1744106242.git.mchehab+huawei@kernel.org
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The venerable kernel-doc Perl script has a number of options that
aren't properly documented. Among them, there is -no-doc-sections,
which is used by the Sphinx extension.
Implement support for it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/06b18a32142b44d5ba8b41ac64a76c02b03b4969.1744106242.git.mchehab+huawei@kernel.org
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Instead of setting file lists at __init__ time, move it to
the actual parsing function. This allows adding more files
to be parsed in real time, by calling parse function multiple
times.
With the new way, the export_files logic was rewritten to
avoid parsing twice EXPORT_SYMBOL for partial matches.
Please notice that, with this logic, it can still read the
same file twice when export_file is used.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/ab10bc94050406ce6536d4944b5d718ecd70812f.1744106242.git.mchehab+huawei@kernel.org
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Instead of directly printing output messages, change kdoc classes
to return an interactor with the output message, letting the
actual display to happen at the command-line command.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/557304c8458f1fb4aa2e833f4bdaff953094ddcb.1744106242.git.mchehab+huawei@kernel.org
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In preparation for letting kerneldoc Sphinx extension to import
Python libraries, move kernel-doc output logic to a separate file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/81087eff25d11c265019a8631f7fc8d3904795d0.1744106242.git.mchehab+huawei@kernel.org
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The KernelFiles class is the main dispatcher which parses each
source file.
In preparation for letting kerneldoc Sphinx extension to import
Python libraries, move regex ancillary classes to a separate
file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/80bc855e128a9ff0a11df5afe9ba71775dfc9a0f.1744106241.git.mchehab+huawei@kernel.org
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In preparation for letting kerneldoc Sphinx extension to import
Python libraries, move regex ancillary classes to a separate
file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/c76df228504e711c6b4bcd23d5a0ea1fda678cda.1744106241.git.mchehab+huawei@kernel.org
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In preparation for letting kerneldoc Sphinx extension to import
Python libraries, move regex ancillary classes to a separate
file.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/64f96b6744435b51894bb4ab7612851d9d054190.1744106241.git.mchehab+huawei@kernel.org
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The ABI documentation looks a little bit better if it starts
with the contents of the README is placed at the beginning.
Move it to the beginning of the ABI chapter. While here, improve
the README text and change the title that will be shown at the
html/pdf output to be coherent with both ABI file contents and
with the generated documentation output.
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20250211055809.1898623-1-mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The undefined logic is complex and has lots of magic on it.
Implement it, using the same algorithm we have at get_abi.pl. Yet,
some tweaks to optimize performance and to make the code simpler
were added here:
- at the perl version, the tree graph had loops, so we had to
use BFS to traverse it. On this version, the graph is a tree,
so, it simplifies the what group for sysfs aliases;
- the logic which splits regular expressions into subgroups
was re-written to make it faster;
- it may optionally use multiple processes to search for symbol
matches;
- it has some additional debug levels.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/1529c255845d117696d5af57d8dc05554663afdf.1739182025.git.mchehab+huawei@kernel.org
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Despite being introduced on Python 3.6, the original implementation
was too limited: it doesn't accept anything but the argument.
Even on python 3.10.12, support was still limited, as more complex
operations cause SyntaxError:
Exception occurred:
File ".../linux/Documentation/sphinx/kernel_abi.py", line 48, in <module>
from get_abi import AbiParser
File ".../linux/scripts/lib/abi/abi_parser.py", line 525
msg += f"{part}\n{"-" * len(part)}\n\n"
^
SyntaxError: f-string: expecting '}'
Replace f-strings by normal string concatenation when it doesn't
work on Python 3.6.
Reported-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/41d2f85df134a46db46fed73a0f9697a3d2ae9ba.1739182025.git.mchehab+huawei@kernel.org
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This makes them look better when generating cross-references.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e44574cb2796861d6acbce839068ed3ef385d16c.1739182025.git.mchehab+huawei@kernel.org
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Now that all ABI files are handled together, we can add a feature
at automarkup for it to generate cross-references for ABI symbols.
The cross-reference logic can produce references for all existing
files, except for README (as this is not parsed).
For symbols, they need to be an exact match of what it is
described at the docs, which is not always true due to wildcards.
If symbols at /sys /proc and /config are identical, a cross-reference
will be used.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/0b97a51b68b1c20127ad4a6a55658557fe0848d0.1739182025.git.mchehab+huawei@kernel.org
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Right now, the logic parses ABI files on 4 steps, one for each
directory. While this is fine in principle, by doing that, not
all symbol cross-references will be created.
Change the logic to do the parsing only once in order to get
a global dictionary to be used when creating ABI cross-references.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/5205c53838b6ea25f4cdd4cc1e3d17c0141e75a6.1739182025.git.mchehab+huawei@kernel.org
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The Documentation/ABI/README file is currently outside the
documentation tree. Yet, it may still provide some useful
information. Add it to the documentation parsing.
As a plus, this avoids a warning when detecting missing
cross-references.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/f1285dedfe4d0eb0f0af34f6a68bee6fde36dd7d.1739182025.git.mchehab+huawei@kernel.org
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This way, Sphinx ABI extension can parse symbols only once, while
keep displaying results in separate files.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/41e108e816e46434aa596e5c0d25d227cb9f0fe5.1739182025.git.mchehab+huawei@kernel.org
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Instead of producing a big message with all ABI contents and then
parse as a whole, simplify the code by handling each ABI symbol
in separate. As an additional benefit, there's no need to place
file/line nubers inlined at the data and use a regex to convert
them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/15be22955e3c6df49d7256c8fd24f62b397ad0ff.1739182025.git.mchehab+huawei@kernel.org
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Instead of running get_abi.py script, import AbiParser class and
handle messages directly there using an interactor. This shold save some
memory, as there's no need to exec python inside the Sphinx python
extension.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/8dbc244dcda97112c1b694e2512a5d600e62873b.1739182025.git.mchehab+huawei@kernel.org
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Instead of printing all results line per line, use an interactor
to return each variable as a separate message.
This won't change much when using it via command line, but it
will help Sphinx integration by providing an interactor that
could be used there to handle ABI symbol by symbol.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/e3c94b8cdfd5e955aa19a703921f364a89089634.1739182025.git.mchehab+huawei@kernel.org
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Instead of using glob, use a recursive function to parse all files.
Such change reduces the total excecution time by 15% with my SSD disks.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/190dd358897017ed82c56f1e263192215ffbae43.1739182025.git.mchehab+huawei@kernel.org
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Add support for searching symbols from Documentation/ABI using
regular expressions to match the symbols' names.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/21b2c48657dde112d5417dcd7e0aa7cd383b9a0a.1739182025.git.mchehab+huawei@kernel.org
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The get_abi.pl script is requiring some care, but it seems that
the number of changes on it since when I originally wrote it
was not too high.
Maintaining perl scripts without using classes requires a higher
efforted than on python, due to global variables management.
Also, it sounds easier to find python developer those days than
perl ones.
As a plus, using a Python class to handle ABI allows a better
integration with Sphinx extensions, allowing, for instance,
to let automarkup to generate cross-references for ABI
symbols.
With that in mind, rewrite the core of get_abi.pl in Python,
using classes, to help producing documentation. This will
allow a better integration in the future with the Sphinx
ABI extension.
The algorithms used there are the same as the ones in Perl,
with a couple of cleanups to remove redundant variables and
to help with cross-reference generation. While doing that,
remove some code that were important in the past, where
ABI files weren't using ReST format.
Some minor improvements were added like using a fixed seed
when generating ABI keys for duplicated names, making its
results reproductible.
The end script is a little bit faster than the original one
(tested on a machine with ssd disks). That's probably because
we're now using only pre-compiled regular expressions, and it
is using string replacement methods instead of regex where
possible.
The new version is a little bit more conservative when
converting text to cross-references to avoid adding them into
literal blocks.
To ensure that the ReST output is parsing all variables
and files properly, the end result was compared using diff
with the one produced by the perl script and showed no regressions.
There are minor improvements at the results, as it now
properly groups What on some special cases. It also better
escape some XREF names.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/71a894211a8b69664711144d9c4f8a0e73d1ae3c.1739182025.git.mchehab+huawei@kernel.org
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Mauro Carvalho Chehab
Sean Anderson