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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0
# Copyright(c) 2026: Mauro Carvalho Chehab <mchehab@kernel.org>.
import os
from kdoc.kdoc_output import ManFormat, RestFormat
class KDocTestFile():
"""
Handles the logic needed to store kernel‑doc output inside a YAML file.
Useful for unit tests and regression tests.
"""
def __init__(self, config, yaml_file, yaml_content):
#
# Bail out early if yaml is not available
#
try:
import yaml
except ImportError:
sys.exit("Warning: yaml package not available. Aborting it.")
self.config = config
self.test_file = os.path.expanduser(yaml_file)
self.yaml_content = yaml_content
self.test_names = set()
self.tests = []
out_dir = os.path.dirname(self.test_file)
if out_dir and not os.path.isdir(out_dir):
sys.exit(f"Directory {out_dir} doesn't exist.")
self.out_style = []
if "man" in self.yaml_content:
out_style = ManFormat()
out_style.set_config(self.config)
self.out_style.append(out_style)
if "rst" in self.yaml_content:
out_style = RestFormat()
out_style.set_config(self.config)
self.out_style.append(out_style)
def set_filter(self, export, internal, symbol, nosymbol,
function_table, enable_lineno, no_doc_sections):
"""
Set filters at the output classes.
"""
for out_style in self.out_style:
out_style.set_filter(export, internal, symbol,
nosymbol, function_table,
enable_lineno, no_doc_sections)
@staticmethod
def get_kdoc_item(arg, start_line=1):
d = vars(arg)
declaration_start_line = d.get("declaration_start_line")
if not declaration_start_line:
return d
d["declaration_start_line"] = start_line
parameterdesc_start_lines = d.get("parameterdesc_start_lines")
if parameterdesc_start_lines:
for key in parameterdesc_start_lines:
ln = parameterdesc_start_lines[key]
ln += start_line - declaration_start_line
parameterdesc_start_lines[key] = ln
sections_start_lines = d.get("sections_start_lines")
if sections_start_lines:
for key in sections_start_lines:
ln = sections_start_lines[key]
ln += start_line - declaration_start_line
sections_start_lines[key] = ln
return d
def output_symbols(self, fname, symbols):
"""
Store source, symbols and output strings at self.tests.
"""
#
# KdocItem needs to be converted into dicts
#
kdoc_item = []
expected = []
#
# Source code didn't produce any symbol
#
if not symbols:
return
expected_dict = {}
start_line=1
for arg in symbols:
source = arg.get("source", "")
if arg and "KdocItem" in self.yaml_content:
msg = self.get_kdoc_item(arg)
other_stuff = msg.get("other_stuff", {})
if "source" in other_stuff:
del other_stuff["source"]
expected_dict["kdoc_item"] = msg
base_name = arg.name
if not base_name:
base_name = fname
base_name = base_name.lower().replace(".", "_").replace("/", "_")
# Don't add duplicated names
i = 0
name = base_name
while name in self.test_names:
i += 1
name = f"{base_name}_{i:03d}"
self.test_names.add(name)
for out_style in self.out_style:
if isinstance(out_style, ManFormat):
key = "man"
else:
key = "rst"
expected_dict[key]= out_style.output_symbols(fname, [arg]).strip()
test = {
"name": name,
"description": f"{fname} line {arg.declaration_start_line}",
"fname": fname,
"source": source,
"expected": [expected_dict]
}
self.tests.append(test)
expected_dict = {}
def write(self):
"""
Output the content of self.tests to self.test_file.
"""
import yaml
# Helper function to better handle multilines
def str_presenter(dumper, data):
if "\n" in data:
return dumper.represent_scalar("tag:yaml.org,2002:str", data, style="|")
return dumper.represent_scalar("tag:yaml.org,2002:str", data)
# Register the representer
yaml.add_representer(str, str_presenter)
data = {"tests": self.tests}
with open(self.test_file, "w", encoding="utf-8") as fp:
yaml.dump(data, fp,
sort_keys=False, width=120, indent=2,
default_flow_style=False, allow_unicode=True,
explicit_start=False, explicit_end=False)
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