Commit | Line | Data |
---|---|---|
89ec984e SM |
1 | # SPDX-License-Identifier: GPL-2.0-only |
2 | # | |
3 | # Copyright (C) 2023 EfficiOS Inc. | |
4 | # | |
5 | # pyright: strict, reportTypeCommentUsage=false | |
6 | ||
7 | import os | |
8 | import sys | |
9 | import typing | |
10 | import argparse | |
11 | from typing import Any, List, Union | |
12 | ||
13 | import normand | |
14 | import moultipart | |
15 | ||
16 | ||
17 | class ErrorCause: | |
18 | def __init__(self, what: str, line_no: int, col_no: int): | |
19 | self._what = what | |
20 | self._line_no = line_no | |
21 | self._col_no = col_no | |
22 | ||
23 | @property | |
24 | def what(self): | |
25 | return self._what | |
26 | ||
27 | @property | |
28 | def line_no(self): | |
29 | return self._line_no | |
30 | ||
31 | @property | |
32 | def col_no(self): | |
33 | return self._col_no | |
34 | ||
35 | ||
36 | class Error(RuntimeError): | |
37 | def __init__(self, causes: List[ErrorCause]): | |
38 | self._causes = causes | |
39 | ||
40 | @property | |
41 | def causes(self): | |
42 | return self._causes | |
43 | ||
44 | ||
45 | def _write_file( | |
46 | name: str, base_dir: str, content: Union[str, bytearray], verbose: bool | |
47 | ): | |
48 | path = os.path.join(base_dir, name) | |
49 | ||
50 | if verbose: | |
51 | print("Writing `{}`.".format(os.path.normpath(path))) | |
52 | ||
53 | os.makedirs(os.path.normpath(os.path.dirname(path)), exist_ok=True) | |
54 | ||
55 | with open(path, "w" if isinstance(content, str) else "wb") as f: | |
56 | f.write(content) | |
57 | ||
58 | ||
59 | def _normand_parse( | |
60 | part: moultipart.Part, init_vars: normand.VariablesT, init_labels: normand.LabelsT | |
61 | ): | |
62 | try: | |
63 | return normand.parse( | |
64 | part.content, init_variables=init_vars, init_labels=init_labels | |
65 | ) | |
66 | except normand.ParseError as e: | |
67 | raise Error( | |
68 | [ | |
69 | ErrorCause( | |
70 | msg.text, | |
71 | msg.text_location.line_no + part.first_content_line_no - 1, | |
72 | msg.text_location.col_no, | |
73 | ) | |
74 | for msg in e.messages | |
75 | ] | |
76 | ) from e | |
77 | ||
78 | ||
79 | def _generate_from_part( | |
80 | part: moultipart.Part, | |
81 | base_dir: str, | |
82 | verbose: bool, | |
83 | normand_vars: normand.VariablesT, | |
84 | normand_labels: normand.LabelsT, | |
85 | ): | |
86 | content = part.content | |
87 | ||
88 | if part.header_info != "metadata": | |
89 | res = _normand_parse(part, normand_vars, normand_labels) | |
90 | content = res.data | |
91 | normand_vars = res.variables | |
92 | normand_labels = res.labels | |
93 | ||
94 | _write_file(part.header_info, base_dir, content, verbose) | |
95 | return normand_vars, normand_labels | |
96 | ||
97 | ||
98 | def generate(input_path: str, base_dir: str, verbose: bool): | |
99 | with open(input_path) as input_file: | |
100 | variables = {} # type: normand.VariablesT | |
101 | labels = {} # type: normand.LabelsT | |
102 | ||
103 | for part in moultipart.parse(input_file): | |
104 | variables, labels = _generate_from_part( | |
105 | part, base_dir, verbose, variables, labels | |
106 | ) | |
107 | ||
108 | ||
109 | def _parse_cli_args(): | |
110 | argparser = argparse.ArgumentParser() | |
111 | argparser.add_argument( | |
112 | "input_path", metavar="PATH", type=str, help="moultipart input file name" | |
113 | ) | |
114 | argparser.add_argument( | |
115 | "--base-dir", type=str, help="base directory of generated files", default="" | |
116 | ) | |
117 | argparser.add_argument( | |
118 | "--verbose", "-v", action="store_true", help="increase verbosity" | |
119 | ) | |
120 | return argparser.parse_args() | |
121 | ||
122 | ||
123 | def _run_cli(args: Any): | |
124 | generate( | |
125 | typing.cast(str, args.input_path), | |
126 | typing.cast(str, args.base_dir), | |
127 | typing.cast(bool, args.verbose), | |
128 | ) | |
129 | ||
130 | ||
131 | def _try_run_cli(): | |
132 | args = _parse_cli_args() | |
133 | ||
134 | try: | |
135 | _run_cli(args) | |
136 | except Error as exc: | |
137 | print("Failed to process Normand part:", file=sys.stderr) | |
138 | ||
139 | for cause in reversed(exc.causes): | |
140 | print( | |
141 | " {}:{}:{} - {}{}".format( | |
142 | os.path.abspath(args.input_path), | |
143 | cause.line_no, | |
144 | cause.col_no, | |
145 | cause.what, | |
146 | "." if cause.what[-1] not in ".:;" else "", | |
147 | ), | |
148 | file=sys.stderr, | |
149 | ) | |
150 | ||
151 | ||
152 | if __name__ == "__main__": | |
153 | _try_run_cli() |