forked from asottile/git-code-debt
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathgenerate.py
More file actions
249 lines (205 loc) · 7.69 KB
/
Copy pathgenerate.py
File metadata and controls
249 lines (205 loc) · 7.69 KB
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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
import argparse
import collections
import contextlib
import itertools
import multiprocessing.pool
import os.path
import sqlite3
from typing import Callable
from typing import Counter
from typing import Dict
from typing import Generator
from typing import Iterable
from typing import List
from typing import Optional
from typing import Pattern
from typing import Sequence
from typing import Set
from typing import Tuple
from typing import Type
from typing import TypeVar
import pkg_resources
from git_code_debt import options
from git_code_debt.discovery import get_metric_parsers_from_args
from git_code_debt.file_diff_stat import FileDiffStat
from git_code_debt.file_diff_stat import get_file_diff_stats_from_output
from git_code_debt.generate_config import GenerateOptions
from git_code_debt.logic import get_metric_has_data
from git_code_debt.logic import get_metric_mapping
from git_code_debt.logic import get_metric_values
from git_code_debt.logic import get_previous_sha
from git_code_debt.metric import Metric
from git_code_debt.metrics.base import DiffParserBase
from git_code_debt.metrics.base import MetricInfo
from git_code_debt.repo_parser import Commit
from git_code_debt.repo_parser import RepoParser
from git_code_debt.util import yaml
from git_code_debt.write_logic import insert_metric_changes
from git_code_debt.write_logic import insert_metric_values
def get_metrics(
commit: Commit,
diff: bytes, metric_parsers:
Set[Type[DiffParserBase]],
exclude: Pattern[bytes],
) -> Tuple[Metric, ...]:
def get_all_metrics(
file_diff_stats: Tuple[FileDiffStat, ...],
) -> Generator[Metric, None, None]:
for metric_parser_cls in metric_parsers:
metric_parser = metric_parser_cls()
yield from metric_parser.get_metrics_from_stat(
commit, file_diff_stats,
)
file_diff_stats = tuple(
x for x in get_file_diff_stats_from_output(diff)
if not exclude.search(x.path)
)
return tuple(get_all_metrics(file_diff_stats))
def increment_metrics(
metric_values: Counter[int],
metric_mapping: Dict[str, int],
metrics: Tuple[Metric, ...],
) -> None:
metric_values.update({metric_mapping[m.name]: m.value for m in metrics})
def _get_metrics_inner(
mp_args: Tuple[
Optional[Commit],
Commit,
RepoParser,
Set[Type[DiffParserBase]],
Pattern[bytes],
],
) -> Tuple[Metric, ...]:
compare_commit, commit, repo_parser, metric_parsers, exclude = mp_args
if compare_commit is None:
diff = repo_parser.get_original_commit(commit.sha)
else:
diff = repo_parser.get_commit_diff(compare_commit.sha, commit.sha)
return get_metrics(commit, diff, metric_parsers, exclude)
T = TypeVar('T')
T2 = TypeVar('T2')
@contextlib.contextmanager
def mapper(jobs: int) -> Generator[
Callable[[Callable[[T2], T], Iterable[T2]], Iterable[T]], None, None,
]:
if jobs == 1:
yield map
else:
with contextlib.closing(multiprocessing.Pool(jobs)) as pool:
yield pool.imap
def update_has_data(
db: sqlite3.Connection,
metrics: Tuple[Metric, ...],
metric_mapping: Dict[str, int],
has_data: Dict[int, bool],
) -> None:
query = 'UPDATE metric_names SET has_data=1 WHERE id = ?'
for metric_id in [metric_mapping[m.name] for m in metrics if m.value]:
if not has_data[metric_id]:
has_data[metric_id] = True
db.execute(query, (metric_id,))
def load_data(
database_file: str,
repo: str,
package_names: List[str],
skip_defaults: bool,
exclude: Pattern[bytes],
jobs: int,
) -> None:
metric_parsers = get_metric_parsers_from_args(package_names, skip_defaults)
with sqlite3.connect(database_file) as db:
metric_mapping = get_metric_mapping(db)
has_data = get_metric_has_data(db)
repo_parser = RepoParser(repo)
with repo_parser.repo_checked_out():
previous_sha = get_previous_sha(db)
commits = repo_parser.get_commits(since_sha=previous_sha)
# If there is nothing to check gtfo
if len(commits) == 1 and previous_sha is not None:
return
# Maps metric_id to a running value
metric_values: Counter[int] = collections.Counter()
# Grab the state of our metrics at the last place
compare_commit = None
if previous_sha is not None:
compare_commit = commits.pop(0)
metric_values.update(get_metric_values(db, compare_commit.sha))
mp_args = zip(
[compare_commit, *commits],
commits,
itertools.repeat(repo_parser),
itertools.repeat(metric_parsers),
itertools.repeat(exclude),
)
with mapper(jobs) as do_map:
for commit, metrics in zip(
commits, do_map(_get_metrics_inner, mp_args),
):
update_has_data(db, metrics, metric_mapping, has_data)
increment_metrics(metric_values, metric_mapping, metrics)
insert_metric_values(db, metric_values, has_data, commit)
insert_metric_changes(db, metrics, metric_mapping, commit)
def create_schema(db: sqlite3.Connection) -> None:
"""Creates the database schema."""
schema_dir = pkg_resources.resource_filename('git_code_debt', 'schema')
schema_files = os.listdir(schema_dir)
for sql_file in schema_files:
resource_filename = os.path.join(schema_dir, sql_file)
with open(resource_filename) as resource:
db.executescript(resource.read())
def get_metrics_info(
metric_parsers: Set[Type[DiffParserBase]],
) -> List[MetricInfo]:
metrics_info = set()
for metric_parser_cls in metric_parsers:
metrics_info.update(metric_parser_cls().get_metrics_info())
return sorted(metrics_info)
def insert_metrics_info(
db: sqlite3.Connection,
metrics_info: List[MetricInfo],
) -> None:
query = 'INSERT INTO metric_names (name, description) VALUES (?, ?)'
db.executemany(query, metrics_info)
def populate_metric_ids(
db: sqlite3.Connection,
package_names: List[str],
skip_defaults: bool,
) -> None:
metric_parsers = get_metric_parsers_from_args(package_names, skip_defaults)
metrics_info = get_metrics_info(metric_parsers)
insert_metrics_info(db, metrics_info)
def create_database(args: GenerateOptions) -> None:
with sqlite3.connect(args.database) as db:
create_schema(db)
populate_metric_ids(
db,
args.metric_package_names,
args.skip_default_metrics,
)
def get_options_from_config(config_filename: str) -> GenerateOptions:
if not os.path.exists(config_filename):
print(f'config file not found {config_filename}')
exit(1)
with open(config_filename) as config_file:
return GenerateOptions.from_yaml(yaml.load(config_file))
def main(argv: Optional[Sequence[str]] = None) -> int:
parser = argparse.ArgumentParser()
options.add_generate_config_filename(parser)
parser.add_argument(
'-j', '--jobs', type=int, default=multiprocessing.cpu_count(),
)
parsed_args = parser.parse_args(argv)
args = get_options_from_config(parsed_args.config_filename)
if not os.path.exists(args.database):
create_database(args)
load_data(
args.database,
args.repo,
args.metric_package_names,
args.skip_default_metrics,
args.exclude,
parsed_args.jobs,
)
return 0
if __name__ == '__main__':
exit(main())