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denoland-deno/cli/cache/node.rs
Nayeem Rahman 3545bff678 fix(watch): preserve ProcState::file_fetcher between restarts (#15466)
This commit changes "ProcState" to store "file_fetcher" field in an "Arc",
allowing it to be preserved between restarts and thus keeping the state
alive between the restarts. File watchers for "deno test" and "deno bench"
now reset "ProcState" between restarts.
2023-01-13 11:20:14 -05:00

382 lines
10 KiB
Rust

// Copyright 2018-2023 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>,
}
#[derive(Clone)]
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());
}
}