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Side by Side Diff: build/android/pylib/utils/proguard.py

Issue 2101243005: Add a snapshot of flutter/engine/src/build to our sdk (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: add README.dart Created 4 years, 5 months ago
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1 # Copyright 2014 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
4
5 import os
6 import re
7 import tempfile
8
9 from pylib import constants
10 from pylib import cmd_helper
11
12
13 _PROGUARD_CLASS_RE = re.compile(r'\s*?- Program class:\s*([\S]+)$')
14 _PROGUARD_SUPERCLASS_RE = re.compile(r'\s*? Superclass:\s*([\S]+)$')
15 _PROGUARD_SECTION_RE = re.compile(
16 r'^(?:Interfaces|Constant Pool|Fields|Methods|Class file attributes) '
17 r'\(count = \d+\):$')
18 _PROGUARD_METHOD_RE = re.compile(r'\s*?- Method:\s*(\S*)[(].*$')
19 _PROGUARD_ANNOTATION_RE = re.compile(r'\s*?- Annotation \[L(\S*);\]:$')
20 _PROGUARD_ANNOTATION_CONST_RE = (
21 re.compile(r'\s*?- Constant element value.*$'))
22 _PROGUARD_ANNOTATION_VALUE_RE = re.compile(r'\s*?- \S+? \[(.*)\]$')
23
24 _PROGUARD_PATH_SDK = os.path.join(
25 constants.ANDROID_SDK_ROOT, 'tools', 'proguard', 'lib', 'proguard.jar')
26 _PROGUARD_PATH_BUILT = (
27 os.path.join(os.environ['ANDROID_BUILD_TOP'], 'external', 'proguard',
28 'lib', 'proguard.jar')
29 if 'ANDROID_BUILD_TOP' in os.environ else None)
30 _PROGUARD_PATH = (
31 _PROGUARD_PATH_SDK if os.path.exists(_PROGUARD_PATH_SDK)
32 else _PROGUARD_PATH_BUILT)
33
34
35 def Dump(jar_path):
36 """Dumps class and method information from a JAR into a dict via proguard.
37
38 Args:
39 jar_path: An absolute path to the JAR file to dump.
40 Returns:
41 A dict in the following format:
42 {
43 'classes': [
44 {
45 'class': '',
46 'superclass': '',
47 'annotations': {},
48 'methods': [
49 {
50 'method': '',
51 'annotations': {},
52 },
53 ...
54 ],
55 },
56 ...
57 ],
58 }
59 """
60
61 with tempfile.NamedTemporaryFile() as proguard_output:
62 cmd_helper.RunCmd(['java', '-jar',
63 _PROGUARD_PATH,
64 '-injars', jar_path,
65 '-dontshrink',
66 '-dontoptimize',
67 '-dontobfuscate',
68 '-dontpreverify',
69 '-dump', proguard_output.name])
70
71
72 results = {
73 'classes': [],
74 }
75
76 annotation = None
77 annotation_has_value = False
78 class_result = None
79 method_result = None
80
81 for line in proguard_output:
82 line = line.strip('\r\n')
83
84 m = _PROGUARD_CLASS_RE.match(line)
85 if m:
86 class_result = {
87 'class': m.group(1).replace('/', '.'),
88 'superclass': '',
89 'annotations': {},
90 'methods': [],
91 }
92 results['classes'].append(class_result)
93 annotation = None
94 annotation_has_value = False
95 method_result = None
96 continue
97
98 if not class_result:
99 continue
100
101 m = _PROGUARD_SUPERCLASS_RE.match(line)
102 if m:
103 class_result['superclass'] = m.group(1).replace('/', '.')
104 continue
105
106 m = _PROGUARD_SECTION_RE.match(line)
107 if m:
108 annotation = None
109 annotation_has_value = False
110 method_result = None
111 continue
112
113 m = _PROGUARD_METHOD_RE.match(line)
114 if m:
115 method_result = {
116 'method': m.group(1),
117 'annotations': {},
118 }
119 class_result['methods'].append(method_result)
120 annotation = None
121 annotation_has_value = False
122 continue
123
124 m = _PROGUARD_ANNOTATION_RE.match(line)
125 if m:
126 # Ignore the annotation package.
127 annotation = m.group(1).split('/')[-1]
128 if method_result:
129 method_result['annotations'][annotation] = None
130 else:
131 class_result['annotations'][annotation] = None
132 continue
133
134 if annotation:
135 if not annotation_has_value:
136 m = _PROGUARD_ANNOTATION_CONST_RE.match(line)
137 annotation_has_value = bool(m)
138 else:
139 m = _PROGUARD_ANNOTATION_VALUE_RE.match(line)
140 if m:
141 if method_result:
142 method_result['annotations'][annotation] = m.group(1)
143 else:
144 class_result['annotations'][annotation] = m.group(1)
145 annotation_has_value = None
146
147 return results
148
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