mirror of
https://github.com/denoland/deno.git
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181 lines
4.7 KiB
Rust
181 lines
4.7 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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use deno_ast::CjsAnalysis;
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use deno_core::error::AnyError;
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use deno_core::serde_json;
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use deno_runtime::deno_webstorage::rusqlite::params;
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use super::cache_db::CacheDB;
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use super::cache_db::CacheDBConfiguration;
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use super::cache_db::CacheFailure;
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use super::FastInsecureHasher;
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pub static NODE_ANALYSIS_CACHE_DB: CacheDBConfiguration =
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CacheDBConfiguration {
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table_initializer: "CREATE TABLE IF NOT EXISTS cjsanalysiscache (
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specifier TEXT PRIMARY KEY,
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source_hash TEXT NOT NULL,
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data TEXT NOT NULL
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);",
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on_version_change: "DELETE FROM cjsanalysiscache;",
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preheat_queries: &[],
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on_failure: CacheFailure::InMemory,
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};
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#[derive(Clone)]
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pub struct NodeAnalysisCache {
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inner: NodeAnalysisCacheInner,
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}
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impl NodeAnalysisCache {
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pub fn new(db: CacheDB) -> Self {
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Self {
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inner: NodeAnalysisCacheInner::new(db),
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}
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}
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pub fn compute_source_hash(text: &str) -> String {
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FastInsecureHasher::hash(text).to_string()
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}
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fn ensure_ok<T: Default>(res: Result<T, AnyError>) -> T {
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match res {
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Ok(x) => x,
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Err(err) => {
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// TODO(mmastrac): This behavior was inherited from before the refactoring but it probably makes sense to move it into the cache
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// at some point.
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// should never error here, but if it ever does don't fail
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if cfg!(debug_assertions) {
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panic!("Error using esm analysis: {err:#}");
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} else {
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log::debug!("Error using esm analysis: {:#}", err);
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}
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T::default()
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}
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}
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}
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pub fn get_cjs_analysis(
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&self,
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specifier: &str,
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expected_source_hash: &str,
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) -> Option<CjsAnalysis> {
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Self::ensure_ok(
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self.inner.get_cjs_analysis(specifier, expected_source_hash),
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)
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}
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pub fn set_cjs_analysis(
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&self,
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specifier: &str,
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source_hash: &str,
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cjs_analysis: &CjsAnalysis,
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) {
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Self::ensure_ok(self.inner.set_cjs_analysis(
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specifier,
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source_hash,
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cjs_analysis,
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));
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}
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}
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#[derive(Clone)]
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struct NodeAnalysisCacheInner {
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conn: CacheDB,
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}
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impl NodeAnalysisCacheInner {
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pub fn new(conn: CacheDB) -> Self {
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Self { conn }
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}
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pub fn get_cjs_analysis(
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&self,
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specifier: &str,
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expected_source_hash: &str,
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) -> Result<Option<CjsAnalysis>, AnyError> {
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let query = "
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SELECT
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data
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FROM
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cjsanalysiscache
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WHERE
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specifier=?1
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AND source_hash=?2
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LIMIT 1";
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let res = self.conn.query_row(
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query,
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params![specifier, &expected_source_hash],
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|row| {
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let analysis_info: String = row.get(0)?;
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Ok(serde_json::from_str(&analysis_info)?)
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},
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)?;
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Ok(res)
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}
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pub fn set_cjs_analysis(
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&self,
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specifier: &str,
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source_hash: &str,
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cjs_analysis: &CjsAnalysis,
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) -> Result<(), AnyError> {
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let sql = "
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INSERT OR REPLACE INTO
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cjsanalysiscache (specifier, source_hash, data)
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VALUES
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(?1, ?2, ?3)";
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self.conn.execute(
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sql,
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params![
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specifier,
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&source_hash.to_string(),
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&serde_json::to_string(&cjs_analysis)?,
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],
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)?;
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Ok(())
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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pub fn node_analysis_cache_general_use() {
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let conn = CacheDB::in_memory(&NODE_ANALYSIS_CACHE_DB, "1.0.0");
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let cache = NodeAnalysisCacheInner::new(conn);
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assert!(cache.get_cjs_analysis("file.js", "2").unwrap().is_none());
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let cjs_analysis = CjsAnalysis {
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exports: vec!["export1".to_string()],
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reexports: vec!["re-export1".to_string()],
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};
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cache
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.set_cjs_analysis("file.js", "2", &cjs_analysis)
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.unwrap();
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assert!(cache.get_cjs_analysis("file.js", "3").unwrap().is_none()); // different hash
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let actual_cjs_analysis =
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cache.get_cjs_analysis("file.js", "2").unwrap().unwrap();
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assert_eq!(actual_cjs_analysis.exports, cjs_analysis.exports);
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assert_eq!(actual_cjs_analysis.reexports, cjs_analysis.reexports);
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// adding when already exists should not cause issue
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cache
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.set_cjs_analysis("file.js", "2", &cjs_analysis)
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.unwrap();
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// recreating with same cli version should still have it
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let conn = cache.conn.recreate_with_version("1.0.0");
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let cache = NodeAnalysisCacheInner::new(conn);
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let actual_analysis =
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cache.get_cjs_analysis("file.js", "2").unwrap().unwrap();
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assert_eq!(actual_analysis.exports, cjs_analysis.exports);
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assert_eq!(actual_analysis.reexports, cjs_analysis.reexports);
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// now changing the cli version should clear it
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let conn = cache.conn.recreate_with_version("2.0.0");
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let cache = NodeAnalysisCacheInner::new(conn);
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assert!(cache.get_cjs_analysis("file.js", "2").unwrap().is_none());
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}
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}
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