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feat: emit files on demand and fix racy emit (#15220)

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David Sherret 2022-07-19 11:58:18 -04:00 • committed by GitHub
parent e99d64aced
commit 0ab262b901
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17 changed files with 591 additions and 547 deletions
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78
cli/cache/disk_cache.rs vendored
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@ -3,13 +3,6 @@
use crate::fs_util;
use crate::http_cache::url_to_filename;
use super::CacheType;
use super::Cacher;
use super::EmitMetadata;
use deno_ast::ModuleSpecifier;
use deno_core::error::AnyError;
use deno_core::serde_json;
use deno_core::url::Host;
use deno_core::url::Url;
use std::ffi::OsStr;
@ -154,77 +147,6 @@ impl DiskCache {
fs_util::atomic_write_file(&path, data, crate::http_cache::CACHE_PERM)
.map_err(|e| with_io_context(&e, format!("{:#?}", &path)))
}
fn get_emit_metadata(
&self,
specifier: &ModuleSpecifier,
) -> Option<EmitMetadata> {
let filename = self.get_cache_filename_with_extension(specifier, "meta")?;
let bytes = self.get(&filename).ok()?;
serde_json::from_slice(&bytes).ok()
}
fn set_emit_metadata(
&self,
specifier: &ModuleSpecifier,
data: EmitMetadata,
) -> Result<(), AnyError> {
let filename = self
.get_cache_filename_with_extension(specifier, "meta")
.unwrap();
let bytes = serde_json::to_vec(&data)?;
self.set(&filename, &bytes).map_err(|e| e.into())
}
}
// todo(13302): remove and replace with sqlite database
impl Cacher for DiskCache {
fn get(
&self,
cache_type: CacheType,
specifier: &ModuleSpecifier,
) -> Option<String> {
let extension = match cache_type {
CacheType::Emit => "js",
CacheType::SourceMap => "js.map",
CacheType::Version => {
return self.get_emit_metadata(specifier).map(|d| d.version_hash)
}
};
let filename =
self.get_cache_filename_with_extension(specifier, extension)?;
self
.get(&filename)
.ok()
.and_then(|b| String::from_utf8(b).ok())
}
fn set(
&self,
cache_type: CacheType,
specifier: &ModuleSpecifier,
value: String,
) -> Result<(), AnyError> {
let extension = match cache_type {
CacheType::Emit => "js",
CacheType::SourceMap => "js.map",
CacheType::Version => {
let data = if let Some(mut data) = self.get_emit_metadata(specifier) {
data.version_hash = value;
data
} else {
EmitMetadata {
version_hash: value,
}
};
return self.set_emit_metadata(specifier, data);
}
};
let filename = self
.get_cache_filename_with_extension(specifier, extension)
.unwrap();
self.set(&filename, value.as_bytes()).map_err(|e| e.into())
}
}
#[cfg(test)]