1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
#!/usr/bin/env python3
###
# Generates a ctx.c file, usable for "Context" on https://decomp.me.
#
# Usage:
# python3 tools/decompctx.py src/file.cpp
#
# If changes are made, please submit a PR to
# https://github.com/encounter/dtk-template
###
import argparse
import fnmatch
import os
import re
from typing import List
script_dir = os.path.dirname(os.path.realpath(__file__))
root_dir = os.path.abspath(os.path.join(script_dir, ".."))
src_dir = os.path.join(root_dir, "src")
include_dirs: List[str] = [] # Set with -I flag
exclude_globs: List[str] = [] # Set with -x flag
include_pattern = re.compile(r'^#\s*include\s*[<"](.+?)[>"]')
guard_pattern = re.compile(r"^#\s*ifndef\s+(.*)$")
once_pattern = re.compile(r"^#\s*pragma\s+once$")
defines = set()
deps = []
def generate_prelude(defines) -> str:
if len(defines) == 0:
return ""
out_text = "/* decompctx prelude */\n"
for define in defines:
parts = define.split("=", 1)
if len(parts) == 2:
macro_name, macro_val = parts
out_text += f"#define {macro_name} {macro_val}\n"
else:
out_text += f"#define {parts[0]}\n"
out_text += "/* end decompctx prelude */\n\n"
return out_text
def import_h_file(in_file: str, r_path: str) -> str:
rel_path = os.path.join(root_dir, r_path, in_file)
if os.path.exists(rel_path):
return import_c_file(rel_path)
for include_dir in include_dirs:
inc_path = os.path.join(include_dir, in_file)
if os.path.exists(inc_path):
return import_c_file(inc_path)
else:
print("Failed to locate", in_file)
return ""
def import_c_file(in_file: str) -> str:
in_file = os.path.relpath(in_file, root_dir)
deps.append(in_file)
out_text = ""
try:
with open(in_file, encoding="utf-8") as file:
out_text += process_file(in_file, list(file))
except Exception:
with open(in_file) as file:
out_text += process_file(in_file, list(file))
return out_text
def process_file(in_file: str, lines: List[str]) -> str:
out_text = ""
for idx, line in enumerate(lines):
if idx == 0:
guard_match = guard_pattern.match(line.strip())
if guard_match:
if guard_match[1] in defines:
break
defines.add(guard_match[1])
else:
once_match = once_pattern.match(line.strip())
if once_match:
if in_file in defines:
break
defines.add(in_file)
print("Processing file", in_file)
include_match = include_pattern.match(line.strip())
if include_match and not include_match[1].endswith(".s"):
excluded = False
for glob in exclude_globs:
if fnmatch.fnmatch(include_match[1], glob):
excluded = True
break
out_text += f'/* "{in_file}" line {idx} "{include_match[1]}" */\n'
if excluded:
out_text += "/* Skipped excluded file */\n"
else:
out_text += import_h_file(include_match[1], os.path.dirname(in_file))
out_text += f'/* end "{include_match[1]}" */\n'
else:
out_text += line
return out_text
def sanitize_path(path: str) -> str:
return path.replace("\\", "/").replace(" ", "\\ ")
def main():
parser = argparse.ArgumentParser(
description="""Create a context file which can be used for decomp.me"""
)
parser.add_argument(
"c_file",
help="""File from which to create context""",
)
parser.add_argument(
"-o",
"--output",
help="""Output file""",
default="ctx.c",
)
parser.add_argument(
"-d",
"--depfile",
help="""Dependency file""",
)
parser.add_argument(
"-I",
"--include",
help="""Include directory""",
action="append",
)
parser.add_argument(
"-x",
"--exclude",
help="""Excluded file name glob""",
action="append",
)
parser.add_argument(
"-D",
"--define",
help="""Macro definition""",
action="append",
)
args = parser.parse_args()
if args.include is None:
exit("No include directories specified")
global include_dirs
include_dirs = args.include
global exclude_globs
exclude_globs = args.exclude or []
prelude_defines = args.define or []
output = generate_prelude(prelude_defines)
output += import_c_file(args.c_file)
with open(os.path.join(root_dir, args.output), "w", encoding="utf-8") as f:
f.write(output)
if args.depfile:
with open(os.path.join(root_dir, args.depfile), "w", encoding="utf-8") as f:
f.write(sanitize_path(args.output) + ":")
for dep in deps:
path = sanitize_path(dep)
f.write(f" \\\n\t{path}")
if __name__ == "__main__":
main()
|
