1 # -*- coding: utf-8; mode: python -*- 1 # -*- coding: utf-8; mode: python -*-
2 # coding=utf-8 2 # coding=utf-8
3 # SPDX-License-Identifier: GPL-2.0 3 # SPDX-License-Identifier: GPL-2.0
4 # 4 #
5 u""" 5 u"""
6 kernel-abi 6 kernel-abi
7 ~~~~~~~~~~ 7 ~~~~~~~~~~
8 8
9 Implementation of the ``kernel-abi`` reST- 9 Implementation of the ``kernel-abi`` reST-directive.
10 10
11 :copyright: Copyright (C) 2016 Markus He 11 :copyright: Copyright (C) 2016 Markus Heiser
12 :copyright: Copyright (C) 2016-2020 Maur 12 :copyright: Copyright (C) 2016-2020 Mauro Carvalho Chehab
13 :maintained-by: Mauro Carvalho Chehab <mche 13 :maintained-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
14 :license: GPL Version 2, June 1991 see 14 :license: GPL Version 2, June 1991 see Linux/COPYING for details.
15 15
16 The ``kernel-abi`` (:py:class:`KernelCmd`) 16 The ``kernel-abi`` (:py:class:`KernelCmd`) directive calls the
17 scripts/get_abi.pl script to parse the Ker 17 scripts/get_abi.pl script to parse the Kernel ABI files.
18 18
19 Overview of directive's argument and optio 19 Overview of directive's argument and options.
20 20
21 .. code-block:: rst 21 .. code-block:: rst
22 22
23 .. kernel-abi:: <ABI directory locatio 23 .. kernel-abi:: <ABI directory location>
24 :debug: 24 :debug:
25 25
26 The argument ``<ABI directory location>`` 26 The argument ``<ABI directory location>`` is required. It contains the
27 location of the ABI files to be parsed. 27 location of the ABI files to be parsed.
28 28
29 ``debug`` 29 ``debug``
30 Inserts a code-block with the *raw* reST 30 Inserts a code-block with the *raw* reST. Sometimes it is helpful to see
31 what reST is generated. 31 what reST is generated.
32 32
33 """ 33 """
34 34
35 import codecs 35 import codecs
36 import os 36 import os
37 import subprocess 37 import subprocess
38 import sys 38 import sys
39 import re 39 import re
40 import kernellog 40 import kernellog
41 41
42 from docutils import nodes, statemachine 42 from docutils import nodes, statemachine
43 from docutils.statemachine import ViewList 43 from docutils.statemachine import ViewList
44 from docutils.parsers.rst import directives, D 44 from docutils.parsers.rst import directives, Directive
45 from docutils.utils.error_reporting import Err 45 from docutils.utils.error_reporting import ErrorString
46 from sphinx.util.docutils import switch_source 46 from sphinx.util.docutils import switch_source_input
47 47
48 __version__ = '1.0' 48 __version__ = '1.0'
49 49
50 def setup(app): 50 def setup(app):
51 51
52 app.add_directive("kernel-abi", KernelCmd) 52 app.add_directive("kernel-abi", KernelCmd)
53 return dict( 53 return dict(
54 version = __version__ 54 version = __version__
55 , parallel_read_safe = True 55 , parallel_read_safe = True
56 , parallel_write_safe = True 56 , parallel_write_safe = True
57 ) 57 )
58 58
59 class KernelCmd(Directive): 59 class KernelCmd(Directive):
60 60
61 u"""KernelABI (``kernel-abi``) directive"" 61 u"""KernelABI (``kernel-abi``) directive"""
62 62
63 required_arguments = 1 63 required_arguments = 1
64 optional_arguments = 2 64 optional_arguments = 2
65 has_content = False 65 has_content = False
66 final_argument_whitespace = True 66 final_argument_whitespace = True
67 67
68 option_spec = { 68 option_spec = {
69 "debug" : directives.flag, 69 "debug" : directives.flag,
70 "rst" : directives.unchanged 70 "rst" : directives.unchanged
71 } 71 }
72 72
73 def run(self): 73 def run(self):
74 doc = self.state.document 74 doc = self.state.document
75 if not doc.settings.file_insertion_ena 75 if not doc.settings.file_insertion_enabled:
76 raise self.warning("docutils: file 76 raise self.warning("docutils: file insertion disabled")
77 77
78 srctree = os.path.abspath(os.environ[" 78 srctree = os.path.abspath(os.environ["srctree"])
79 79
80 args = [ 80 args = [
81 os.path.join(srctree, 'scripts/get 81 os.path.join(srctree, 'scripts/get_abi.pl'),
82 'rest', 82 'rest',
83 '--enable-lineno', 83 '--enable-lineno',
84 '--dir', os.path.join(srctree, 'Do 84 '--dir', os.path.join(srctree, 'Documentation', self.arguments[0]),
85 ] 85 ]
86 86
87 if 'rst' in self.options: 87 if 'rst' in self.options:
88 args.append('--rst-source') 88 args.append('--rst-source')
89 89
90 lines = subprocess.check_output(args, 90 lines = subprocess.check_output(args, cwd=os.path.dirname(doc.current_source)).decode('utf-8')
91 nodeList = self.nestedParse(lines, sel 91 nodeList = self.nestedParse(lines, self.arguments[0])
92 return nodeList 92 return nodeList
93 93
94 def nestedParse(self, lines, fname): 94 def nestedParse(self, lines, fname):
95 env = self.state.document.settings.env 95 env = self.state.document.settings.env
96 content = ViewList() 96 content = ViewList()
97 node = nodes.section() 97 node = nodes.section()
98 98
99 if "debug" in self.options: 99 if "debug" in self.options:
100 code_block = "\n\n.. code-block:: 100 code_block = "\n\n.. code-block:: rst\n :linenos:\n"
101 for l in lines.split("\n"): 101 for l in lines.split("\n"):
102 code_block += "\n " + l 102 code_block += "\n " + l
103 lines = code_block + "\n\n" 103 lines = code_block + "\n\n"
104 104
105 line_regex = re.compile(r"^\.\. LINENO 105 line_regex = re.compile(r"^\.\. LINENO (\S+)\#([0-9]+)$")
106 ln = 0 106 ln = 0
107 n = 0 107 n = 0
108 f = fname 108 f = fname
109 109
110 for line in lines.split("\n"): 110 for line in lines.split("\n"):
111 n = n + 1 111 n = n + 1
112 match = line_regex.search(line) 112 match = line_regex.search(line)
113 if match: 113 if match:
114 new_f = match.group(1) 114 new_f = match.group(1)
115 115
116 # Sphinx parser is lazy: it st 116 # Sphinx parser is lazy: it stops parsing contents in the
117 # middle, if it is too big. So 117 # middle, if it is too big. So, handle it per input file
118 if new_f != f and content: 118 if new_f != f and content:
119 self.do_parse(content, nod 119 self.do_parse(content, node)
120 content = ViewList() 120 content = ViewList()
121 121
122 # Add the file to Sphinx b 122 # Add the file to Sphinx build dependencies
123 env.note_dependency(os.pat 123 env.note_dependency(os.path.abspath(f))
124 124
125 f = new_f 125 f = new_f
126 126
127 # sphinx counts lines from 0 127 # sphinx counts lines from 0
128 ln = int(match.group(2)) - 1 128 ln = int(match.group(2)) - 1
129 else: 129 else:
130 content.append(line, f, ln) 130 content.append(line, f, ln)
131 131
132 kernellog.info(self.state.document.set 132 kernellog.info(self.state.document.settings.env.app, "%s: parsed %i lines" % (fname, n))
133 133
134 if content: 134 if content:
135 self.do_parse(content, node) 135 self.do_parse(content, node)
136 136
137 return node.children 137 return node.children
138 138
139 def do_parse(self, content, node): 139 def do_parse(self, content, node):
140 with switch_source_input(self.state, c 140 with switch_source_input(self.state, content):
141 self.state.nested_parse(content, 0 141 self.state.nested_parse(content, 0, node, match_titles=1)
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