forked from denoland/deno
-
Notifications
You must be signed in to change notification settings - Fork 0
/
mod.rs
300 lines (275 loc) · 8.83 KB
/
mod.rs
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
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use crate::args::deno_registry_url;
use crate::args::CacheSetting;
use crate::errors::get_error_class_name;
use crate::file_fetcher::FetchOptions;
use crate::file_fetcher::FileFetcher;
use crate::npm::CliNpmResolver;
use crate::util::fs::atomic_write_file;
use deno_ast::MediaType;
use deno_core::futures;
use deno_core::futures::FutureExt;
use deno_core::url::Url;
use deno_core::ModuleSpecifier;
use deno_graph::source::CacheInfo;
use deno_graph::source::LoadFuture;
use deno_graph::source::LoadResponse;
use deno_graph::source::Loader;
use deno_runtime::permissions::PermissionsContainer;
use std::collections::HashMap;
use std::path::Path;
use std::path::PathBuf;
use std::sync::Arc;
use std::time::SystemTime;
mod cache_db;
mod caches;
mod check;
mod common;
mod deno_dir;
mod disk_cache;
mod emit;
mod incremental;
mod module_info;
mod node;
mod parsed_source;
pub use caches::Caches;
pub use check::TypeCheckCache;
pub use common::FastInsecureHasher;
pub use deno_dir::DenoDir;
pub use deno_dir::DenoDirProvider;
pub use disk_cache::DiskCache;
pub use emit::EmitCache;
pub use incremental::IncrementalCache;
pub use module_info::ModuleInfoCache;
pub use node::NodeAnalysisCache;
pub use parsed_source::ParsedSourceCache;
/// Permissions used to save a file in the disk caches.
pub const CACHE_PERM: u32 = 0o644;
#[derive(Debug, Clone)]
pub struct RealDenoCacheEnv;
impl deno_cache_dir::DenoCacheEnv for RealDenoCacheEnv {
fn read_file_bytes(&self, path: &Path) -> std::io::Result<Option<Vec<u8>>> {
match std::fs::read(path) {
Ok(s) => Ok(Some(s)),
Err(err) if err.kind() == std::io::ErrorKind::NotFound => Ok(None),
Err(err) => Err(err),
}
}
fn atomic_write_file(
&self,
path: &Path,
bytes: &[u8],
) -> std::io::Result<()> {
atomic_write_file(path, bytes, CACHE_PERM)
}
fn modified(&self, path: &Path) -> std::io::Result<Option<SystemTime>> {
match std::fs::metadata(path) {
Ok(metadata) => Ok(Some(
metadata.modified().unwrap_or_else(|_| SystemTime::now()),
)),
Err(err) if err.kind() == std::io::ErrorKind::NotFound => Ok(None),
Err(err) => Err(err),
}
}
fn is_file(&self, path: &Path) -> bool {
path.is_file()
}
fn time_now(&self) -> SystemTime {
SystemTime::now()
}
}
pub type GlobalHttpCache = deno_cache_dir::GlobalHttpCache<RealDenoCacheEnv>;
pub type LocalHttpCache = deno_cache_dir::LocalHttpCache<RealDenoCacheEnv>;
pub type LocalLspHttpCache =
deno_cache_dir::LocalLspHttpCache<RealDenoCacheEnv>;
pub use deno_cache_dir::HttpCache;
use self::module_info::ModuleInfoCacheSourceHash;
/// A "wrapper" for the FileFetcher and DiskCache for the Deno CLI that provides
/// a concise interface to the DENO_DIR when building module graphs.
pub struct FetchCacher {
emit_cache: EmitCache,
file_fetcher: Arc<FileFetcher>,
file_header_overrides: HashMap<ModuleSpecifier, HashMap<String, String>>,
global_http_cache: Arc<GlobalHttpCache>,
npm_resolver: Arc<dyn CliNpmResolver>,
module_info_cache: Arc<ModuleInfoCache>,
permissions: PermissionsContainer,
cache_info_enabled: bool,
}
impl FetchCacher {
pub fn new(
emit_cache: EmitCache,
file_fetcher: Arc<FileFetcher>,
file_header_overrides: HashMap<ModuleSpecifier, HashMap<String, String>>,
global_http_cache: Arc<GlobalHttpCache>,
npm_resolver: Arc<dyn CliNpmResolver>,
module_info_cache: Arc<ModuleInfoCache>,
permissions: PermissionsContainer,
) -> Self {
Self {
emit_cache,
file_fetcher,
file_header_overrides,
global_http_cache,
npm_resolver,
module_info_cache,
permissions,
cache_info_enabled: false,
}
}
/// The cache information takes a bit of time to fetch and it's
/// not always necessary. It should only be enabled for deno info.
pub fn enable_loading_cache_info(&mut self) {
self.cache_info_enabled = true;
}
// DEPRECATED: Where the file is stored and how it's stored should be an implementation
// detail of the cache.
//
// todo(dsheret): remove once implementing
// * https://github.com/denoland/deno/issues/17707
// * https://github.com/denoland/deno/issues/17703
#[deprecated(
note = "There should not be a way to do this because the file may not be cached at a local path in the future."
)]
fn get_local_path(&self, specifier: &ModuleSpecifier) -> Option<PathBuf> {
// TODO(@kitsonk) fix when deno_graph does not query cache for synthetic
// modules
if specifier.scheme() == "flags" {
None
} else if specifier.scheme() == "file" {
specifier.to_file_path().ok()
} else {
#[allow(deprecated)]
self
.global_http_cache
.get_global_cache_filepath(specifier)
.ok()
}
}
}
impl Loader for FetchCacher {
fn registry_url(&self) -> &Url {
deno_registry_url()
}
fn get_cache_info(&self, specifier: &ModuleSpecifier) -> Option<CacheInfo> {
if !self.cache_info_enabled {
return None;
}
#[allow(deprecated)]
let local = self.get_local_path(specifier)?;
if local.is_file() {
let emit = self
.emit_cache
.get_emit_filepath(specifier)
.filter(|p| p.is_file());
Some(CacheInfo {
local: Some(local),
emit,
map: None,
})
} else {
None
}
}
fn load(
&mut self,
specifier: &ModuleSpecifier,
_is_dynamic: bool,
cache_setting: deno_graph::source::CacheSetting,
) -> LoadFuture {
use deno_graph::source::CacheSetting as LoaderCacheSetting;
if specifier.path().contains("/node_modules/") {
// The specifier might be in a completely different symlinked tree than
// what the node_modules url is in (ex. `/my-project-1/node_modules`
// symlinked to `/my-project-2/node_modules`), so first we checked if the path
// is in a node_modules dir to avoid needlessly canonicalizing, then now compare
// against the canonicalized specifier.
let specifier =
crate::node::resolve_specifier_into_node_modules(specifier);
if self.npm_resolver.in_npm_package(&specifier) {
return Box::pin(futures::future::ready(Ok(Some(
LoadResponse::External { specifier },
))));
}
}
let file_fetcher = self.file_fetcher.clone();
let file_header_overrides = self.file_header_overrides.clone();
let permissions = self.permissions.clone();
let specifier = specifier.clone();
async move {
let maybe_cache_setting = match cache_setting {
LoaderCacheSetting::Use => None,
LoaderCacheSetting::Reload => {
if matches!(file_fetcher.cache_setting(), CacheSetting::Only) {
return Err(deno_core::anyhow::anyhow!(
"Failed to resolve version constraint. Try running again without --cached-only"
));
}
Some(CacheSetting::ReloadAll)
}
LoaderCacheSetting::Only => Some(CacheSetting::Only),
};
file_fetcher
.fetch_with_options(FetchOptions {
specifier: &specifier,
permissions,
maybe_accept: None,
maybe_cache_setting: maybe_cache_setting.as_ref(),
})
.await
.map(|file| {
let maybe_headers =
match (file.maybe_headers, file_header_overrides.get(&specifier)) {
(Some(headers), Some(overrides)) => {
Some(headers.into_iter().chain(overrides.clone()).collect())
}
(Some(headers), None) => Some(headers),
(None, Some(overrides)) => Some(overrides.clone()),
(None, None) => None,
};
Ok(Some(LoadResponse::Module {
specifier: file.specifier,
maybe_headers,
content: file.source,
}))
})
.unwrap_or_else(|err| {
if let Some(io_err) = err.downcast_ref::<std::io::Error>() {
if io_err.kind() == std::io::ErrorKind::NotFound {
return Ok(None);
} else {
return Err(err);
}
}
let error_class_name = get_error_class_name(&err);
match error_class_name {
"NotFound" => Ok(None),
"NotCached" if cache_setting == LoaderCacheSetting::Only => Ok(None),
_ => Err(err),
}
})
}
.boxed()
}
fn cache_module_info(
&mut self,
specifier: &ModuleSpecifier,
source: &Arc<[u8]>,
module_info: &deno_graph::ModuleInfo,
) {
let source_hash = ModuleInfoCacheSourceHash::from_source(source);
let result = self.module_info_cache.set_module_info(
specifier,
MediaType::from_specifier(specifier),
&source_hash,
module_info,
);
if let Err(err) = result {
log::debug!(
"Error saving module cache info for {}. {:#}",
specifier,
err
);
}
}
}