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denoland-deno/runtime/snapshot.rs

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use crate::ops;
use crate::ops::bootstrap::SnapshotOptions;
use crate::shared::maybe_transpile_source;
use crate::shared::runtime;
use deno_cache::SqliteBackedCache;
use deno_core::snapshot::*;
use deno_core::v8;
use deno_core::Extension;
use deno_http::DefaultHttpPropertyExtractor;
use deno_io::fs::FsError;
use deno_permissions::PermissionCheckError;
use std::borrow::Cow;
use std::io::Write;
use std::path::Path;
use std::path::PathBuf;
use std::rc::Rc;
use std::sync::Arc;
#[derive(Clone)]
struct Permissions;
impl deno_websocket::WebSocketPermissions for Permissions {
fn check_net_url(
&mut self,
_url: &deno_core::url::Url,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
}
impl deno_web::TimersPermission for Permissions {
fn allow_hrtime(&mut self) -> bool {
unreachable!("snapshotting!")
}
}
impl deno_fetch::FetchPermissions for Permissions {
fn check_net_url(
&mut self,
_url: &deno_core::url::Url,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_read<'a>(
&mut self,
_p: &'a Path,
_api_name: &str,
) -> Result<Cow<'a, Path>, PermissionCheckError> {
unreachable!("snapshotting!")
}
}
impl deno_ffi::FfiPermissions for Permissions {
fn check_partial_no_path(&mut self) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_partial_with_path(
&mut self,
_path: &str,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
}
impl deno_napi::NapiPermissions for Permissions {
fn check(&mut self, _path: &str) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
}
impl deno_node::NodePermissions for Permissions {
fn check_net_url(
&mut self,
_url: &deno_core::url::Url,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_net(
&mut self,
_host: (&str, Option<u16>),
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_read_path<'a>(
&mut self,
_path: &'a Path,
) -> Result<Cow<'a, Path>, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_read_with_api_name(
&mut self,
_p: &str,
_api_name: Option<&str>,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn query_read_all(&mut self) -> bool {
unreachable!("snapshotting!")
}
fn check_write_with_api_name(
&mut self,
_p: &str,
_api_name: Option<&str>,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_sys(
&mut self,
_kind: &str,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
}
impl deno_net::NetPermissions for Permissions {
fn check_net<T: AsRef<str>>(
&mut self,
_host: &(T, Option<u16>),
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_read(
&mut self,
_p: &str,
_api_name: &str,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write(
&mut self,
_p: &str,
_api_name: &str,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write_path<'a>(
&mut self,
_p: &'a Path,
_api_name: &str,
) -> Result<Cow<'a, Path>, PermissionCheckError> {
unreachable!("snapshotting!")
}
}
impl deno_fs::FsPermissions for Permissions {
fn check_open<'a>(
&mut self,
_resolved: bool,
_read: bool,
_write: bool,
_path: &'a Path,
_api_name: &str,
) -> Result<Cow<'a, Path>, FsError> {
unreachable!("snapshotting!")
}
fn check_read(
&mut self,
_path: &str,
_api_name: &str,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_read_all(
&mut self,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_read_blind(
&mut self,
_path: &Path,
_display: &str,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write(
&mut self,
_path: &str,
_api_name: &str,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write_partial(
&mut self,
_path: &str,
_api_name: &str,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write_all(
&mut self,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write_blind(
&mut self,
_path: &Path,
_display: &str,
_api_name: &str,
) -> Result<(), PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_read_path<'a>(
&mut self,
_path: &'a Path,
_api_name: &str,
) -> Result<Cow<'a, Path>, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write_path<'a>(
&mut self,
_path: &'a Path,
_api_name: &str,
) -> Result<Cow<'a, Path>, PermissionCheckError> {
unreachable!("snapshotting!")
}
}
impl deno_kv::sqlite::SqliteDbHandlerPermissions for Permissions {
fn check_read(
&mut self,
_path: &str,
_api_name: &str,
) -> Result<PathBuf, PermissionCheckError> {
unreachable!("snapshotting!")
}
fn check_write<'a>(
&mut self,
_path: &'a Path,
_api_name: &str,
) -> Result<Cow<'a, Path>, PermissionCheckError> {
unreachable!("snapshotting!")
}
}
pub fn create_runtime_snapshot(
snapshot_path: PathBuf,
snapshot_options: SnapshotOptions,
// NOTE: For embedders that wish to add additional extensions to the snapshot
custom_extensions: Vec<Extension>,
) {
// NOTE(bartlomieju): ordering is important here, keep it in sync with
// `runtime/worker.rs`, `runtime/web_worker.rs` and `runtime/snapshot.rs`!
let fs = std::sync::Arc::new(deno_fs::RealFs);
let mut extensions: Vec<Extension> = vec![
deno_telemetry::deno_telemetry::init_ops_and_esm(),
deno_webidl::deno_webidl::init_ops_and_esm(),
deno_console::deno_console::init_ops_and_esm(),
deno_url::deno_url::init_ops_and_esm(),
deno_web::deno_web::init_ops_and_esm::<Permissions>(
Default::default(),
Default::default(),
),
deno_webgpu::deno_webgpu::init_ops_and_esm(),
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deno_canvas::deno_canvas::init_ops_and_esm(),
deno_fetch::deno_fetch::init_ops_and_esm::<Permissions>(Default::default()),
deno_cache::deno_cache::init_ops_and_esm::<SqliteBackedCache>(None),
deno_websocket::deno_websocket::init_ops_and_esm::<Permissions>(
"".to_owned(),
None,
None,
),
deno_webstorage::deno_webstorage::init_ops_and_esm(None),
deno_crypto::deno_crypto::init_ops_and_esm(None),
deno_broadcast_channel::deno_broadcast_channel::init_ops_and_esm(
deno_broadcast_channel::InMemoryBroadcastChannel::default(),
),
deno_ffi::deno_ffi::init_ops_and_esm::<Permissions>(),
deno_net::deno_net::init_ops_and_esm::<Permissions>(None, None),
deno_tls::deno_tls::init_ops_and_esm(),
deno_kv::deno_kv::init_ops_and_esm(
deno_kv::sqlite::SqliteDbHandler::<Permissions>::new(None, None),
deno_kv::KvConfig::builder().build(),
),
deno_cron::deno_cron::init_ops_and_esm(
deno_cron::local::LocalCronHandler::new(),
),
deno_napi::deno_napi::init_ops_and_esm::<Permissions>(),
deno_http::deno_http::init_ops_and_esm::<DefaultHttpPropertyExtractor>(
deno_http::Options::default(),
),
deno_io::deno_io::init_ops_and_esm(Default::default()),
deno_fs::deno_fs::init_ops_and_esm::<Permissions>(fs.clone()),
deno_node::deno_node::init_ops_and_esm::<Permissions>(None, fs.clone()),
runtime::init_ops_and_esm(),
ops::runtime::deno_runtime::init_ops("deno:runtime".parse().unwrap()),
ops::worker_host::deno_worker_host::init_ops(
Arc::new(|_| unreachable!("not used in snapshot.")),
None,
),
ops::fs_events::deno_fs_events::init_ops(),
ops::os::deno_os::init_ops(Default::default()),
ops::permissions::deno_permissions::init_ops(),
ops::process::deno_process::init_ops(None),
ops::signal::deno_signal::init_ops(),
ops::tty::deno_tty::init_ops(),
ops::http::deno_http_runtime::init_ops(),
ops::bootstrap::deno_bootstrap::init_ops(Some(snapshot_options)),
ops::web_worker::deno_web_worker::init_ops(),
];
extensions.extend(custom_extensions);
let output = create_snapshot(
CreateSnapshotOptions {
cargo_manifest_dir: env!("CARGO_MANIFEST_DIR"),
startup_snapshot: None,
extensions,
extension_transpiler: Some(Rc::new(|specifier, source| {
maybe_transpile_source(specifier, source)
})),
with_runtime_cb: Some(Box::new(|rt| {
let isolate = rt.v8_isolate();
let scope = &mut v8::HandleScope::new(isolate);
let tmpl = deno_node::init_global_template(
scope,
deno_node::ContextInitMode::ForSnapshot,
);
let ctx = deno_node::create_v8_context(
scope,
tmpl,
deno_node::ContextInitMode::ForSnapshot,
std::ptr::null_mut(),
);
assert_eq!(scope.add_context(ctx), deno_node::VM_CONTEXT_INDEX);
})),
skip_op_registration: false,
},
None,
)
.unwrap();
let mut snapshot = std::fs::File::create(snapshot_path).unwrap();
snapshot.write_all(&output.output).unwrap();
#[allow(clippy::print_stdout)]
for path in output.files_loaded_during_snapshot {
println!("cargo:rerun-if-changed={}", path.display());
}
}