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denoland-deno/cli/cache/node.rs

381 lines
10 KiB
Rust

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use std::path::Path;
use deno_ast::CjsAnalysis;
use deno_core::error::AnyError;
use deno_core::parking_lot::Mutex;
use deno_core::serde_json;
use deno_runtime::deno_webstorage::rusqlite::params;
use deno_runtime::deno_webstorage::rusqlite::Connection;
use serde::Deserialize;
use serde::Serialize;
use std::path::PathBuf;
use std::sync::Arc;
use super::common::run_sqlite_pragma;
use super::FastInsecureHasher;
// todo(dsherret): use deno_ast::CjsAnalysisData directly when upgrading deno_ast
// See https://github.com/denoland/deno_ast/pull/117
#[derive(Serialize, Deserialize)]
struct CjsAnalysisData {
pub exports: Vec<String>,
pub reexports: Vec<String>,
}
pub struct NodeAnalysisCache {
db_file_path: Option<PathBuf>,
inner: Arc<Mutex<Option<Option<NodeAnalysisCacheInner>>>>,
}
impl NodeAnalysisCache {
pub fn new(db_file_path: Option<PathBuf>) -> Self {
Self {
db_file_path,
inner: Default::default(),
}
}
pub fn compute_source_hash(text: &str) -> String {
FastInsecureHasher::new()
.write_str(text)
.finish()
.to_string()
}
pub fn get_cjs_analysis(
&self,
specifier: &str,
expected_source_hash: &str,
) -> Option<CjsAnalysis> {
self
.with_inner(|inner| {
inner.get_cjs_analysis(specifier, expected_source_hash)
})
.flatten()
}
pub fn set_cjs_analysis(
&self,
specifier: &str,
source_hash: &str,
cjs_analysis: &CjsAnalysis,
) {
self.with_inner(|inner| {
inner.set_cjs_analysis(specifier, source_hash, cjs_analysis)
});
}
pub fn get_esm_analysis(
&self,
specifier: &str,
expected_source_hash: &str,
) -> Option<Vec<String>> {
self
.with_inner(|inner| {
inner.get_esm_analysis(specifier, expected_source_hash)
})
.flatten()
}
pub fn set_esm_analysis(
&self,
specifier: &str,
source_hash: &str,
top_level_decls: &Vec<String>,
) {
self.with_inner(|inner| {
inner.set_esm_analysis(specifier, source_hash, top_level_decls)
});
}
fn with_inner<TResult>(
&self,
action: impl FnOnce(&NodeAnalysisCacheInner) -> Result<TResult, AnyError>,
) -> Option<TResult> {
// lazily create the cache in order to not
let mut maybe_created = self.inner.lock();
let inner = match maybe_created.as_ref() {
Some(maybe_inner) => maybe_inner.as_ref(),
None => {
let maybe_inner = match NodeAnalysisCacheInner::new(
self.db_file_path.as_deref(),
crate::version::deno(),
) {
Ok(cache) => Some(cache),
Err(err) => {
// should never error here, but if it ever does don't fail
if cfg!(debug_assertions) {
panic!("Error creating node analysis cache: {:#}", err);
} else {
log::debug!("Error creating node analysis cache: {:#}", err);
None
}
}
};
*maybe_created = Some(maybe_inner);
maybe_created.as_ref().and_then(|p| p.as_ref())
}
}?;
match action(inner) {
Ok(result) => Some(result),
Err(err) => {
// should never error here, but if it ever does don't fail
if cfg!(debug_assertions) {
panic!("Error using esm analysis: {:#}", err);
} else {
log::debug!("Error using esm analysis: {:#}", err);
}
None
}
}
}
}
struct NodeAnalysisCacheInner {
conn: Connection,
}
impl NodeAnalysisCacheInner {
pub fn new(
db_file_path: Option<&Path>,
version: String,
) -> Result<Self, AnyError> {
log::debug!("Opening node analysis cache.");
let conn = match db_file_path {
Some(path) => Connection::open(path)?,
None => Connection::open_in_memory()?,
};
Self::from_connection(conn, version)
}
fn from_connection(
conn: Connection,
version: String,
) -> Result<Self, AnyError> {
run_sqlite_pragma(&conn)?;
create_tables(&conn, &version)?;
Ok(Self { conn })
}
pub fn get_cjs_analysis(
&self,
specifier: &str,
expected_source_hash: &str,
) -> Result<Option<CjsAnalysis>, AnyError> {
let query = "
SELECT
data
FROM
cjsanalysiscache
WHERE
specifier=?1
AND source_hash=?2
LIMIT 1";
let mut stmt = self.conn.prepare_cached(query)?;
let mut rows = stmt.query(params![specifier, &expected_source_hash])?;
if let Some(row) = rows.next()? {
let analysis_info: String = row.get(0)?;
let analysis_info: CjsAnalysisData =
serde_json::from_str(&analysis_info)?;
Ok(Some(CjsAnalysis {
exports: analysis_info.exports,
reexports: analysis_info.reexports,
}))
} else {
Ok(None)
}
}
pub fn set_cjs_analysis(
&self,
specifier: &str,
source_hash: &str,
cjs_analysis: &CjsAnalysis,
) -> Result<(), AnyError> {
let sql = "
INSERT OR REPLACE INTO
cjsanalysiscache (specifier, source_hash, data)
VALUES
(?1, ?2, ?3)";
let mut stmt = self.conn.prepare_cached(sql)?;
stmt.execute(params![
specifier,
&source_hash.to_string(),
&serde_json::to_string(&CjsAnalysisData {
// temporary clones until upgrading deno_ast
exports: cjs_analysis.exports.clone(),
reexports: cjs_analysis.reexports.clone(),
})?,
])?;
Ok(())
}
pub fn get_esm_analysis(
&self,
specifier: &str,
expected_source_hash: &str,
) -> Result<Option<Vec<String>>, AnyError> {
let query = "
SELECT
data
FROM
esmglobalscache
WHERE
specifier=?1
AND source_hash=?2
LIMIT 1";
let mut stmt = self.conn.prepare_cached(query)?;
let mut rows = stmt.query(params![specifier, &expected_source_hash])?;
if let Some(row) = rows.next()? {
let top_level_decls: String = row.get(0)?;
let decls: Vec<String> = serde_json::from_str(&top_level_decls)?;
Ok(Some(decls))
} else {
Ok(None)
}
}
pub fn set_esm_analysis(
&self,
specifier: &str,
source_hash: &str,
top_level_decls: &Vec<String>,
) -> Result<(), AnyError> {
let sql = "
INSERT OR REPLACE INTO
esmglobalscache (specifier, source_hash, data)
VALUES
(?1, ?2, ?3)";
let mut stmt = self.conn.prepare_cached(sql)?;
stmt.execute(params![
specifier,
&source_hash.to_string(),
&serde_json::to_string(top_level_decls)?,
])?;
Ok(())
}
}
fn create_tables(conn: &Connection, cli_version: &str) -> Result<(), AnyError> {
// INT doesn't store up to u64, so use TEXT for source_hash
conn.execute(
"CREATE TABLE IF NOT EXISTS cjsanalysiscache (
specifier TEXT PRIMARY KEY,
source_hash TEXT NOT NULL,
data TEXT NOT NULL
)",
[],
)?;
conn.execute(
"CREATE UNIQUE INDEX IF NOT EXISTS cjsanalysiscacheidx
ON cjsanalysiscache(specifier)",
[],
)?;
conn.execute(
"CREATE TABLE IF NOT EXISTS esmglobalscache (
specifier TEXT PRIMARY KEY,
source_hash TEXT NOT NULL,
data TEXT NOT NULL
)",
[],
)?;
conn.execute(
"CREATE UNIQUE INDEX IF NOT EXISTS esmglobalscacheidx
ON esmglobalscache(specifier)",
[],
)?;
conn.execute(
"CREATE TABLE IF NOT EXISTS info (
key TEXT PRIMARY KEY,
value TEXT NOT NULL
)",
[],
)?;
// delete the cache when the CLI version changes
let data_cli_version: Option<String> = conn
.query_row(
"SELECT value FROM info WHERE key='CLI_VERSION' LIMIT 1",
[],
|row| row.get(0),
)
.ok();
if data_cli_version != Some(cli_version.to_string()) {
conn.execute("DELETE FROM cjsanalysiscache", params![])?;
conn.execute("DELETE FROM esmglobalscache", params![])?;
let mut stmt = conn
.prepare("INSERT OR REPLACE INTO info (key, value) VALUES (?1, ?2)")?;
stmt.execute(params!["CLI_VERSION", &cli_version])?;
}
Ok(())
}
#[cfg(test)]
mod test {
use super::*;
#[test]
pub fn node_analysis_cache_general_use() {
let conn = Connection::open_in_memory().unwrap();
let cache =
NodeAnalysisCacheInner::from_connection(conn, "1.0.0".to_string())
.unwrap();
assert!(cache.get_cjs_analysis("file.js", "2").unwrap().is_none());
let cjs_analysis = CjsAnalysis {
exports: vec!["export1".to_string()],
reexports: vec!["re-export1".to_string()],
};
cache
.set_cjs_analysis("file.js", "2", &cjs_analysis)
.unwrap();
assert!(cache.get_cjs_analysis("file.js", "3").unwrap().is_none()); // different hash
let actual_cjs_analysis =
cache.get_cjs_analysis("file.js", "2").unwrap().unwrap();
assert_eq!(actual_cjs_analysis.exports, cjs_analysis.exports);
assert_eq!(actual_cjs_analysis.reexports, cjs_analysis.reexports);
assert!(cache.get_esm_analysis("file.js", "2").unwrap().is_none());
let esm_analysis = vec!["esm1".to_string()];
cache
.set_esm_analysis("file.js", "2", &esm_analysis)
.unwrap();
assert!(cache.get_esm_analysis("file.js", "3").unwrap().is_none()); // different hash
let actual_esm_analysis =
cache.get_esm_analysis("file.js", "2").unwrap().unwrap();
assert_eq!(actual_esm_analysis, esm_analysis);
// adding when already exists should not cause issue
cache
.set_cjs_analysis("file.js", "2", &cjs_analysis)
.unwrap();
cache
.set_esm_analysis("file.js", "2", &esm_analysis)
.unwrap();
// recreating with same cli version should still have it
let conn = cache.conn;
let cache =
NodeAnalysisCacheInner::from_connection(conn, "1.0.0".to_string())
.unwrap();
let actual_analysis =
cache.get_cjs_analysis("file.js", "2").unwrap().unwrap();
assert_eq!(actual_analysis.exports, cjs_analysis.exports);
assert_eq!(actual_analysis.reexports, cjs_analysis.reexports);
let actual_esm_analysis =
cache.get_esm_analysis("file.js", "2").unwrap().unwrap();
assert_eq!(actual_esm_analysis, esm_analysis);
// now changing the cli version should clear it
let conn = cache.conn;
let cache =
NodeAnalysisCacheInner::from_connection(conn, "2.0.0".to_string())
.unwrap();
assert!(cache.get_cjs_analysis("file.js", "2").unwrap().is_none());
assert!(cache.get_esm_analysis("file.js", "2").unwrap().is_none());
}
}