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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use deno_core::error::AnyError;use deno_core::serde_json;use deno_core::serde_json::Value;use serde::Serialize;use std::collections::HashMap;use std::convert::From;use std::env;use std::fs;use std::path::Path;use std::path::PathBuf;use std::process::Command;use std::process::Stdio;use std::time::SystemTime;
mod http;mod lsp;
fn read_json(filename: &str) -> Result<Value> {  let f = fs::File::open(filename)?;  Ok(serde_json::from_reader(f)?)}
fn write_json(filename: &str, value: &Value) -> Result<()> {  let f = fs::File::create(filename)?;  serde_json::to_writer(f, value)?;  Ok(())}
/// The list of the tuples of the benchmark name, arguments and return codeconst EXEC_TIME_BENCHMARKS: &[(&str, &[&str], Option<i32>)] = &[  // we need to run the cold_* benchmarks before the _warm_ ones as they ensure  // the cache is properly populated, instead of other tests possibly  // invalidating that cache.  (    "cold_hello",    &["run", "--reload", "cli/tests/testdata/002_hello.ts"],    None,  ),  (    "cold_relative_import",    &[      "run",      "--reload",      "cli/tests/testdata/003_relative_import.ts",    ],    None,  ),  ("hello", &["run", "cli/tests/testdata/002_hello.ts"], None),  (    "relative_import",    &["run", "cli/tests/testdata/003_relative_import.ts"],    None,  ),  (    "error_001",    &["run", "cli/tests/testdata/error_001.ts"],    Some(1),  ),  (    "no_check_hello",    &[      "run",      "--reload",      "--no-check",      "cli/tests/testdata/002_hello.ts",    ],    None,  ),  (    "workers_startup",    &[      "run",      "--allow-read",      "cli/tests/testdata/workers/bench_startup.ts",    ],    None,  ),  (    "workers_round_robin",    &[      "run",      "--allow-read",      "cli/tests/testdata/workers/bench_round_robin.ts",    ],    None,  ),  (    "workers_large_message",    &[      "run",      "--allow-read",      "cli/tests/testdata/workers/bench_large_message.ts",    ],    None,  ),  (    "text_decoder",    &["run", "cli/tests/testdata/text_decoder_perf.js"],    None,  ),  (    "text_encoder",    &["run", "cli/tests/testdata/text_encoder_perf.js"],    None,  ),  (    "text_encoder_into",    &["run", "cli/tests/testdata/text_encoder_into_perf.js"],    None,  ),  (    "response_string",    &["run", "cli/tests/testdata/response_string_perf.js"],    None,  ),  (    "check",    &[      "cache",      "--reload",      "test_util/std/examples/chat/server_test.ts",    ],    None,  ),  (    "no_check",    &[      "cache",      "--reload",      "--no-check",      "test_util/std/examples/chat/server_test.ts",    ],    None,  ),  (    "bundle",    &["bundle", "test_util/std/examples/chat/server_test.ts"],    None,  ),  (    "bundle_no_check",    &[      "bundle",      "--no-check",      "test_util/std/examples/chat/server_test.ts",    ],    None,  ),];
const RESULT_KEYS: &[&str] =  &["mean", "stddev", "user", "system", "min", "max"];fn run_exec_time(  deno_exe: &Path,  target_dir: &Path,) -> Result<HashMap<String, HashMap<String, f64>>> {  let hyperfine_exe = test_util::prebuilt_tool_path("hyperfine");
  let benchmark_file = target_dir.join("hyperfine_results.json");  let benchmark_file = benchmark_file.to_str().unwrap();
  let mut command = [    hyperfine_exe.to_str().unwrap(),    "--export-json",    benchmark_file,    "--warmup",    "3",  ]  .iter()  .map(|s| s.to_string())  .collect::<Vec<_>>();
  for (_, args, return_code) in EXEC_TIME_BENCHMARKS {    let ret_code_test = if let Some(code) = return_code {      // Bash test which asserts the return code value of the previous command      // $? contains the return code of the previous command      format!("; test $? -eq {}", code)    } else {      "".to_string()    };    command.push(format!(      "{} {} {}",      deno_exe.to_str().unwrap(),      args.join(" "),      ret_code_test    ));  }
  test_util::run(    &command.iter().map(|s| s.as_ref()).collect::<Vec<_>>(),    None,    None,    None,    true,  );
  let mut results = HashMap::<String, HashMap<String, f64>>::new();  let hyperfine_results = read_json(benchmark_file)?;  for ((name, _, _), data) in EXEC_TIME_BENCHMARKS.iter().zip(    hyperfine_results      .as_object()      .unwrap()      .get("results")      .unwrap()      .as_array()      .unwrap(),  ) {    let data = data.as_object().unwrap().clone();    results.insert(      name.to_string(),      data        .into_iter()        .filter(|(key, _)| RESULT_KEYS.contains(&key.as_str()))        .map(|(key, val)| (key, val.as_f64().unwrap()))        .collect(),    );  }
  Ok(results)}
fn rlib_size(target_dir: &std::path::Path, prefix: &str) -> u64 {  let mut size = 0;  let mut seen = std::collections::HashSet::new();  for entry in std::fs::read_dir(target_dir.join("deps")).unwrap() {    let entry = entry.unwrap();    let os_str = entry.file_name();    let name = os_str.to_str().unwrap();    if name.starts_with(prefix) && name.ends_with(".rlib") {      let start = name.split('-').next().unwrap().to_string();      if seen.contains(&start) {        println!("skip {}", name);      } else {        seen.insert(start);        size += entry.metadata().unwrap().len();        println!("check size {} {}", name, size);      }    }  }  assert!(size > 0);  size}
const BINARY_TARGET_FILES: &[&str] =  &["CLI_SNAPSHOT.bin", "COMPILER_SNAPSHOT.bin"];fn get_binary_sizes(target_dir: &Path) -> Result<HashMap<String, u64>> {  let mut sizes = HashMap::<String, u64>::new();  let mut mtimes = HashMap::<String, SystemTime>::new();
  sizes.insert(    "deno".to_string(),    test_util::deno_exe_path().metadata()?.len(),  );
  // add up size for everything in target/release/deps/libswc*  let swc_size = rlib_size(target_dir, "libswc");  println!("swc {} bytes", swc_size);  sizes.insert("swc_rlib".to_string(), swc_size);
  let v8_size = rlib_size(target_dir, "libv8");  println!("v8 {} bytes", v8_size);  sizes.insert("rusty_v8_rlib".to_string(), v8_size);
  // Because cargo's OUT_DIR is not predictable, search the build tree for  // snapshot related files.  for file in walkdir::WalkDir::new(target_dir) {    let file = match file {      Ok(file) => file,      Err(_) => continue,    };    let filename = file.file_name().to_str().unwrap().to_string();
    if !BINARY_TARGET_FILES.contains(&filename.as_str()) {      continue;    }
    let meta = file.metadata()?;    let file_mtime = meta.modified()?;
    // If multiple copies of a file are found, use the most recent one.    if let Some(stored_mtime) = mtimes.get(&filename) {      if *stored_mtime > file_mtime {        continue;      }    }
    mtimes.insert(filename.clone(), file_mtime);    sizes.insert(filename, meta.len());  }
  Ok(sizes)}
const BUNDLES: &[(&str, &str)] = &[  ("file_server", "./test_util/std/http/file_server.ts"),  ("gist", "./test_util/std/examples/gist.ts"),];fn bundle_benchmark(deno_exe: &Path) -> Result<HashMap<String, u64>> {  let mut sizes = HashMap::<String, u64>::new();
  for (name, url) in BUNDLES {    let path = format!("{}.bundle.js", name);    test_util::run(      &[        deno_exe.to_str().unwrap(),        "bundle",        "--unstable",        url,        &path,      ],      None,      None,      None,      true,    );
    let file = PathBuf::from(path);    assert!(file.is_file());    sizes.insert(name.to_string(), file.metadata()?.len());    let _ = fs::remove_file(file);  }
  Ok(sizes)}
fn run_http(target_dir: &Path, new_data: &mut BenchResult) -> Result<()> {  let stats = http::benchmark(target_dir)?;
  new_data.req_per_sec = stats    .iter()    .map(|(name, result)| (name.clone(), result.requests))    .collect();
  new_data.max_latency = stats    .iter()    .map(|(name, result)| (name.clone(), result.latency))    .collect();
  Ok(())}
fn run_strace_benchmarks(  deno_exe: &Path,  new_data: &mut BenchResult,) -> Result<()> {  use std::io::Read;
  let mut thread_count = HashMap::<String, u64>::new();  let mut syscall_count = HashMap::<String, u64>::new();
  for (name, args, expected_exit_code) in EXEC_TIME_BENCHMARKS {    let mut file = secure_tempfile::NamedTempFile::new()?;
    let exit_status = Command::new("strace")      .args(&[        "-c",        "-f",        "-o",        file.path().to_str().unwrap(),        deno_exe.to_str().unwrap(),      ])      .args(args.iter())      .stdout(Stdio::null())      .spawn()?      .wait()?;    let expected_exit_code = expected_exit_code.unwrap_or(0);    assert_eq!(exit_status.code(), Some(expected_exit_code));
    let mut output = String::new();    file.as_file_mut().read_to_string(&mut output)?;
    let strace_result = test_util::parse_strace_output(&output);    let clone = strace_result.get("clone").map(|d| d.calls).unwrap_or(0) + 1;    let total = strace_result.get("total").unwrap().calls;    thread_count.insert(name.to_string(), clone);    syscall_count.insert(name.to_string(), total);  }
  new_data.thread_count = thread_count;  new_data.syscall_count = syscall_count;
  Ok(())}
fn run_max_mem_benchmark(deno_exe: &Path) -> Result<HashMap<String, u64>> {  let mut results = HashMap::<String, u64>::new();
  for (name, args, return_code) in EXEC_TIME_BENCHMARKS {    let proc = Command::new("time")      .args(&["-v", deno_exe.to_str().unwrap()])      .args(args.iter())      .stdout(Stdio::null())      .stderr(Stdio::piped())      .spawn()?;
    let proc_result = proc.wait_with_output()?;    if let Some(code) = return_code {      assert_eq!(proc_result.status.code().unwrap(), *code);    }    let out = String::from_utf8(proc_result.stderr)?;
    results.insert(name.to_string(), test_util::parse_max_mem(&out).unwrap());  }
  Ok(results)}
fn cargo_deps() -> usize {  let cargo_lock = test_util::root_path().join("Cargo.lock");  let mut count = 0;  let file = std::fs::File::open(cargo_lock).unwrap();  use std::io::BufRead;  for line in std::io::BufReader::new(file).lines() {    if line.unwrap().starts_with("[[package]]") {      count += 1    }  }  println!("cargo_deps {}", count);  assert!(count > 10); // Sanity check.  count}
#[derive(Default, Serialize)]struct BenchResult {  created_at: String,  sha1: String,
  // TODO(ry) The "benchmark" benchmark should actually be called "exec_time".  // When this is changed, the historical data in gh-pages branch needs to be  // changed too.  benchmark: HashMap<String, HashMap<String, f64>>,  binary_size: HashMap<String, u64>,  bundle_size: HashMap<String, u64>,  cargo_deps: usize,  max_latency: HashMap<String, f64>,  max_memory: HashMap<String, u64>,  lsp_exec_time: HashMap<String, u64>,  req_per_sec: HashMap<String, u64>,  syscall_count: HashMap<String, u64>,  thread_count: HashMap<String, u64>,}
/* TODO(SyrupThinker) Switch to the #[bench] attribute once it is stabilized. Before that the #[test] tests won't be run because we replace the harness with our own runner here.*/fn main() -> Result<()> {  if !env::args().any(|s| s == "--bench") {    return Ok(());  }
  println!("Starting Deno benchmark");
  let target_dir = test_util::target_dir();  let deno_exe = test_util::deno_exe_path();
  env::set_current_dir(&test_util::root_path())?;
  let mut new_data = BenchResult {    created_at: chrono::Utc::now()      .to_rfc3339_opts(chrono::SecondsFormat::Secs, true),    sha1: test_util::run_collect(      &["git", "rev-parse", "HEAD"],      None,      None,      None,      true,    )    .0    .trim()    .to_string(),    benchmark: run_exec_time(&deno_exe, &target_dir)?,    binary_size: get_binary_sizes(&target_dir)?,    bundle_size: bundle_benchmark(&deno_exe)?,    cargo_deps: cargo_deps(),    lsp_exec_time: lsp::benchmarks(&deno_exe)?,    ..Default::default()  };
  if cfg!(not(target_os = "windows")) {    run_http(&target_dir, &mut new_data)?;  }
  if cfg!(target_os = "linux") {    run_strace_benchmarks(&deno_exe, &mut new_data)?;    new_data.max_memory = run_max_mem_benchmark(&deno_exe)?;  }
  println!("===== <BENCHMARK RESULTS>");  serde_json::to_writer_pretty(std::io::stdout(), &new_data)?;  println!("\n===== </BENCHMARK RESULTS>");
  if let Some(filename) = target_dir.join("bench.json").to_str() {    write_json(filename, &serde_json::to_value(&new_data)?)?;  } else {    eprintln!("Cannot write bench.json, path is invalid");  }
  Ok(())}
pub type Result<T> = std::result::Result<T, AnyError>;