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
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
use std::cell::RefCell;
use std::future::Future;
use std::path::{Path, PathBuf};
use std::pin::Pin;
use std::sync::Arc;
use std::task::{Context, Poll};
use once_cell::sync::Lazy;
#[cfg(feature = "redactions")]
use crate::{
content::Content,
redaction::{dynamic_redaction, sorted_redaction, ContentPath, Redaction, Selector},
};
static DEFAULT_SETTINGS: Lazy<Arc<ActualSettings>> = Lazy::new(|| {
Arc::new(ActualSettings {
sort_maps: false,
snapshot_path: "snapshots".into(),
snapshot_suffix: "".into(),
input_file: None,
prepend_module_to_snapshot: true,
#[cfg(feature = "redactions")]
redactions: Redactions::default(),
#[cfg(feature = "glob")]
allow_empty_glob: false,
})
});
thread_local!(static CURRENT_SETTINGS: RefCell<Settings> = RefCell::new(Settings::new()));
#[cfg(feature = "redactions")]
#[derive(Clone, Default)]
pub struct Redactions(Vec<(Selector<'static>, Arc<Redaction>)>);
#[cfg(feature = "redactions")]
impl<'a> From<Vec<(&'a str, Redaction)>> for Redactions {
fn from(value: Vec<(&'a str, Redaction)>) -> Redactions {
Redactions(
value
.into_iter()
.map(|x| (Selector::parse(x.0).unwrap().make_static(), Arc::new(x.1)))
.collect(),
)
}
}
#[derive(Clone)]
#[doc(hidden)]
pub struct ActualSettings {
pub sort_maps: bool,
pub snapshot_path: PathBuf,
pub snapshot_suffix: String,
pub input_file: Option<PathBuf>,
pub prepend_module_to_snapshot: bool,
#[cfg(feature = "redactions")]
pub redactions: Redactions,
#[cfg(feature = "glob")]
pub allow_empty_glob: bool,
}
#[derive(Clone)]
pub struct Settings {
inner: Arc<ActualSettings>,
}
impl Default for Settings {
fn default() -> Settings {
Settings {
inner: DEFAULT_SETTINGS.clone(),
}
}
}
impl Settings {
pub fn new() -> Settings {
Settings::default()
}
pub fn clone_current() -> Settings {
Settings::with(|x| x.clone())
}
#[doc(hidden)]
pub fn _private_inner_mut(&mut self) -> &mut ActualSettings {
Arc::make_mut(&mut self.inner)
}
pub fn set_sort_maps(&mut self, value: bool) {
self._private_inner_mut().sort_maps = value;
}
pub fn sort_maps(&self) -> bool {
self.inner.sort_maps
}
pub fn set_prepend_module_to_snapshot(&mut self, value: bool) {
self._private_inner_mut().prepend_module_to_snapshot = value;
}
pub fn prepend_module_to_snapshot(&self) -> bool {
self.inner.prepend_module_to_snapshot
}
#[cfg(feature = "glob")]
pub fn set_allow_empty_glob(&mut self, value: bool) {
self._private_inner_mut().allow_empty_glob = value;
}
#[cfg(feature = "glob")]
pub fn allow_empty_glob(&self) -> bool {
self.inner.allow_empty_glob
}
pub fn set_snapshot_suffix<I: Into<String>>(&mut self, suffix: I) {
self._private_inner_mut().snapshot_suffix = suffix.into();
}
pub fn remove_snapshot_suffix(&mut self) {
self.set_snapshot_suffix("");
}
pub fn snapshot_suffix(&self) -> Option<&str> {
if self.inner.snapshot_suffix.is_empty() {
None
} else {
Some(&self.inner.snapshot_suffix)
}
}
pub fn set_input_file<P: AsRef<Path>>(&mut self, p: P) {
self._private_inner_mut().input_file = Some(p.as_ref().to_path_buf());
}
pub fn remove_input_file(&mut self) {
self._private_inner_mut().input_file = None;
}
pub fn input_file(&self) -> Option<&Path> {
self.inner.input_file.as_deref()
}
#[cfg(feature = "redactions")]
pub fn add_redaction<R: Into<Redaction>>(&mut self, selector: &str, replacement: R) {
self._private_inner_mut().redactions.0.push((
Selector::parse(selector).unwrap().make_static(),
Arc::new(replacement.into()),
));
}
#[cfg(feature = "redactions")]
pub fn add_dynamic_redaction<I, F>(&mut self, selector: &str, func: F)
where
I: Into<Content>,
F: Fn(Content, ContentPath<'_>) -> I + Send + Sync + 'static,
{
self.add_redaction(selector, dynamic_redaction(func));
}
#[cfg(feature = "redactions")]
pub fn sort_selector(&mut self, selector: &str) {
self.add_redaction(selector, sorted_redaction());
}
#[cfg(feature = "redactions")]
pub fn set_redactions<R: Into<Redactions>>(&mut self, redactions: R) {
self._private_inner_mut().redactions = redactions.into();
}
#[cfg(feature = "redactions")]
pub fn clear_redactions(&mut self) {
self._private_inner_mut().redactions.0.clear();
}
#[cfg(feature = "redactions")]
pub(crate) fn iter_redactions(&self) -> impl Iterator<Item = (&Selector, &Redaction)> {
self.inner
.redactions
.0
.iter()
.map(|&(ref a, ref b)| (a, &**b))
}
pub fn set_snapshot_path<P: AsRef<Path>>(&mut self, path: P) {
self._private_inner_mut().snapshot_path = path.as_ref().to_path_buf();
}
pub fn snapshot_path(&self) -> &Path {
&self.inner.snapshot_path
}
pub fn bind<F: FnOnce()>(&self, f: F) {
CURRENT_SETTINGS.with(|x| {
let old = {
let mut current = x.borrow_mut();
let old = current.inner.clone();
current.inner = self.inner.clone();
old
};
f();
let mut current = x.borrow_mut();
current.inner = old;
})
}
pub fn bind_async<F: Future<Output = T>, T>(&self, future: F) -> impl Future<Output = T> {
struct BindingFuture<F>(Arc<ActualSettings>, F);
impl<F: Future> Future for BindingFuture<F> {
type Output = F::Output;
fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
let inner = self.0.clone();
let future = unsafe { self.map_unchecked_mut(|s| &mut s.1) };
CURRENT_SETTINGS.with(|x| {
let old = {
let mut current = x.borrow_mut();
let old = current.inner.clone();
current.inner = inner;
old
};
let rv = future.poll(cx);
let mut current = x.borrow_mut();
current.inner = old;
rv
})
}
}
BindingFuture(self.inner.clone(), future)
}
pub fn bind_to_thread(&self) {
CURRENT_SETTINGS.with(|x| {
x.borrow_mut().inner = self.inner.clone();
})
}
pub(crate) fn with<R, F: FnOnce(&Settings) -> R>(f: F) -> R {
CURRENT_SETTINGS.with(|x| f(&*x.borrow()))
}
}