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denoland-deno/cli/main.rs
Leo Kettmeir e650165e80
chore: upgrade clap to v3 (#13266)
2022-01-14 17:38:17 +01:00

1428 lines
41 KiB
Rust
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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
mod auth_tokens;
mod cache;
mod checksum;
mod compat;
mod config_file;
mod deno_dir;
mod diagnostics;
mod diff;
mod disk_cache;
mod emit;
mod errors;
mod file_fetcher;
mod file_watcher;
mod flags;
mod flags_allow_net;
mod fmt_errors;
mod fs_util;
mod graph_util;
mod http_cache;
mod http_util;
mod lockfile;
mod logger;
mod lsp;
mod module_loader;
mod ops;
mod proc_state;
mod resolver;
mod source_maps;
mod standalone;
mod text_encoding;
mod tools;
mod tsc;
mod unix_util;
mod version;
mod windows_util;
use crate::file_fetcher::File;
use crate::file_watcher::ResolutionResult;
use crate::flags::BundleFlags;
use crate::flags::CacheFlags;
use crate::flags::CheckFlag;
use crate::flags::CompileFlags;
use crate::flags::CompletionsFlags;
use crate::flags::CoverageFlags;
use crate::flags::DenoSubcommand;
use crate::flags::DocFlags;
use crate::flags::EvalFlags;
use crate::flags::Flags;
use crate::flags::FmtFlags;
use crate::flags::InfoFlags;
use crate::flags::InstallFlags;
use crate::flags::LintFlags;
use crate::flags::ReplFlags;
use crate::flags::RunFlags;
use crate::flags::TestFlags;
use crate::flags::UninstallFlags;
use crate::flags::UpgradeFlags;
use crate::fmt_errors::PrettyJsError;
use crate::graph_util::graph_lock_or_exit;
use crate::graph_util::graph_valid;
use crate::module_loader::CliModuleLoader;
use crate::proc_state::ProcState;
use crate::resolver::ImportMapResolver;
use crate::resolver::JsxResolver;
use crate::source_maps::apply_source_map;
use crate::tools::installer::infer_name_from_url;
use deno_ast::MediaType;
use deno_core::error::generic_error;
use deno_core::error::AnyError;
use deno_core::futures::future::FutureExt;
use deno_core::futures::Future;
use deno_core::located_script_name;
use deno_core::parking_lot::RwLock;
use deno_core::resolve_url_or_path;
use deno_core::serde_json;
use deno_core::serde_json::json;
use deno_core::v8_set_flags;
use deno_core::Extension;
use deno_core::ModuleSpecifier;
use deno_runtime::colors;
use deno_runtime::ops::worker_host::CreateWebWorkerCb;
use deno_runtime::permissions::Permissions;
use deno_runtime::tokio_util::run_basic;
use deno_runtime::web_worker::WebWorker;
use deno_runtime::web_worker::WebWorkerOptions;
use deno_runtime::worker::MainWorker;
use deno_runtime::worker::WorkerOptions;
use deno_runtime::BootstrapOptions;
use log::debug;
use log::info;
use std::env;
use std::io::Read;
use std::io::Write;
use std::iter::once;
use std::path::PathBuf;
use std::pin::Pin;
use std::rc::Rc;
use std::sync::Arc;
fn create_web_worker_callback(ps: ProcState) -> Arc<CreateWebWorkerCb> {
Arc::new(move |args| {
let global_state_ = ps.clone();
let js_error_create_fn = Rc::new(move |core_js_error| {
let source_mapped_error =
apply_source_map(&core_js_error, global_state_.clone());
PrettyJsError::create(source_mapped_error)
});
let maybe_inspector_server = ps.maybe_inspector_server.clone();
let module_loader = CliModuleLoader::new_for_worker(
ps.clone(),
args.parent_permissions.clone(),
);
let create_web_worker_cb = create_web_worker_callback(ps.clone());
let extensions = ops::cli_exts(ps.clone(), args.use_deno_namespace);
let options = WebWorkerOptions {
bootstrap: BootstrapOptions {
args: ps.flags.argv.clone(),
apply_source_maps: true,
cpu_count: num_cpus::get(),
debug_flag: ps
.flags
.log_level
.map_or(false, |l| l == log::Level::Debug),
enable_testing_features: ps.flags.enable_testing_features,
location: Some(args.main_module.clone()),
no_color: !colors::use_color(),
runtime_version: version::deno(),
ts_version: version::TYPESCRIPT.to_string(),
unstable: ps.flags.unstable,
},
extensions,
unsafely_ignore_certificate_errors: ps
.flags
.unsafely_ignore_certificate_errors
.clone(),
root_cert_store: ps.root_cert_store.clone(),
user_agent: version::get_user_agent(),
seed: ps.flags.seed,
module_loader,
create_web_worker_cb,
js_error_create_fn: Some(js_error_create_fn),
use_deno_namespace: args.use_deno_namespace,
worker_type: args.worker_type,
maybe_inspector_server,
get_error_class_fn: Some(&crate::errors::get_error_class_name),
blob_store: ps.blob_store.clone(),
broadcast_channel: ps.broadcast_channel.clone(),
shared_array_buffer_store: Some(ps.shared_array_buffer_store.clone()),
compiled_wasm_module_store: Some(ps.compiled_wasm_module_store.clone()),
maybe_exit_code: args.maybe_exit_code,
};
WebWorker::bootstrap_from_options(
args.name,
args.permissions,
args.main_module,
args.worker_id,
options,
)
})
}
pub fn create_main_worker(
ps: &ProcState,
main_module: ModuleSpecifier,
permissions: Permissions,
mut custom_extensions: Vec<Extension>,
) -> MainWorker {
let module_loader = CliModuleLoader::new(ps.clone());
let global_state_ = ps.clone();
let js_error_create_fn = Rc::new(move |core_js_error| {
let source_mapped_error =
apply_source_map(&core_js_error, global_state_.clone());
PrettyJsError::create(source_mapped_error)
});
let maybe_inspector_server = ps.maybe_inspector_server.clone();
let should_break_on_first_statement = ps.flags.inspect_brk.is_some();
let create_web_worker_cb = create_web_worker_callback(ps.clone());
let maybe_storage_key = if let Some(location) = &ps.flags.location {
// if a location is set, then the ascii serialization of the location is
// used, unless the origin is opaque, and then no storage origin is set, as
// we can't expect the origin to be reproducible
let storage_origin = location.origin().ascii_serialization();
if storage_origin == "null" {
None
} else {
Some(storage_origin)
}
} else if let Some(config_file) = &ps.maybe_config_file {
// otherwise we will use the path to the config file
Some(config_file.specifier.to_string())
} else {
// otherwise we will use the path to the main module
Some(main_module.to_string())
};
let origin_storage_dir = maybe_storage_key.map(|key| {
ps.dir
.root
// TODO(@crowlKats): change to origin_data for 2.0
.join("location_data")
.join(checksum::gen(&[key.as_bytes()]))
});
let mut extensions = ops::cli_exts(ps.clone(), true);
extensions.append(&mut custom_extensions);
let options = WorkerOptions {
bootstrap: BootstrapOptions {
apply_source_maps: true,
args: ps.flags.argv.clone(),
cpu_count: num_cpus::get(),
debug_flag: ps.flags.log_level.map_or(false, |l| l == log::Level::Debug),
enable_testing_features: ps.flags.enable_testing_features,
location: ps.flags.location.clone(),
no_color: !colors::use_color(),
runtime_version: version::deno(),
ts_version: version::TYPESCRIPT.to_string(),
unstable: ps.flags.unstable,
},
extensions,
unsafely_ignore_certificate_errors: ps
.flags
.unsafely_ignore_certificate_errors
.clone(),
root_cert_store: ps.root_cert_store.clone(),
user_agent: version::get_user_agent(),
seed: ps.flags.seed,
js_error_create_fn: Some(js_error_create_fn),
create_web_worker_cb,
maybe_inspector_server,
should_break_on_first_statement,
module_loader,
get_error_class_fn: Some(&crate::errors::get_error_class_name),
origin_storage_dir,
blob_store: ps.blob_store.clone(),
broadcast_channel: ps.broadcast_channel.clone(),
shared_array_buffer_store: Some(ps.shared_array_buffer_store.clone()),
compiled_wasm_module_store: Some(ps.compiled_wasm_module_store.clone()),
};
MainWorker::bootstrap_from_options(main_module, permissions, options)
}
pub fn write_to_stdout_ignore_sigpipe(
bytes: &[u8],
) -> Result<(), std::io::Error> {
use std::io::ErrorKind;
match std::io::stdout().write_all(bytes) {
Ok(()) => Ok(()),
Err(e) => match e.kind() {
ErrorKind::BrokenPipe => Ok(()),
_ => Err(e),
},
}
}
pub fn write_json_to_stdout<T>(value: &T) -> Result<(), AnyError>
where
T: ?Sized + serde::ser::Serialize,
{
let mut writer = std::io::BufWriter::new(std::io::stdout());
serde_json::to_writer_pretty(&mut writer, value)?;
writeln!(&mut writer)?;
Ok(())
}
fn print_cache_info(
state: &ProcState,
json: bool,
location: Option<&deno_core::url::Url>,
) -> Result<(), AnyError> {
let deno_dir = &state.dir.root;
let modules_cache = &state.file_fetcher.get_http_cache_location();
let typescript_cache = &state.dir.gen_cache.location;
let registry_cache =
&state.dir.root.join(lsp::language_server::REGISTRIES_PATH);
let mut origin_dir = state.dir.root.join("location_data");
if let Some(location) = &location {
origin_dir =
origin_dir.join(&checksum::gen(&[location.to_string().as_bytes()]));
}
if json {
let mut output = json!({
"denoDir": deno_dir,
"modulesCache": modules_cache,
"typescriptCache": typescript_cache,
"registryCache": registry_cache,
"originStorage": origin_dir,
});
if location.is_some() {
output["localStorage"] =
serde_json::to_value(origin_dir.join("local_storage"))?;
}
write_json_to_stdout(&output)
} else {
println!("{} {:?}", colors::bold("DENO_DIR location:"), deno_dir);
println!(
"{} {:?}",
colors::bold("Remote modules cache:"),
modules_cache
);
println!(
"{} {:?}",
colors::bold("Emitted modules cache:"),
typescript_cache
);
println!(
"{} {:?}",
colors::bold("Language server registries cache:"),
registry_cache,
);
println!("{} {:?}", colors::bold("Origin storage:"), origin_dir);
if location.is_some() {
println!(
"{} {:?}",
colors::bold("Local Storage:"),
origin_dir.join("local_storage"),
);
}
Ok(())
}
}
pub fn get_types(unstable: bool) -> String {
let mut types = vec![
crate::tsc::DENO_NS_LIB,
crate::tsc::DENO_CONSOLE_LIB,
crate::tsc::DENO_URL_LIB,
crate::tsc::DENO_WEB_LIB,
crate::tsc::DENO_FETCH_LIB,
crate::tsc::DENO_WEBGPU_LIB,
crate::tsc::DENO_WEBSOCKET_LIB,
crate::tsc::DENO_WEBSTORAGE_LIB,
crate::tsc::DENO_CRYPTO_LIB,
crate::tsc::DENO_BROADCAST_CHANNEL_LIB,
crate::tsc::DENO_NET_LIB,
crate::tsc::SHARED_GLOBALS_LIB,
crate::tsc::WINDOW_LIB,
];
if unstable {
types.push(crate::tsc::UNSTABLE_NS_LIB);
}
types.join("\n")
}
async fn compile_command(
flags: Flags,
compile_flags: CompileFlags,
) -> Result<i32, AnyError> {
let debug = flags.log_level == Some(log::Level::Debug);
let run_flags = tools::standalone::compile_to_runtime_flags(
flags.clone(),
compile_flags.args,
)?;
let module_specifier = resolve_url_or_path(&compile_flags.source_file)?;
let ps = ProcState::build(flags.clone()).await?;
let deno_dir = &ps.dir;
let output = compile_flags.output.and_then(|output| {
if fs_util::path_has_trailing_slash(&output) {
let infer_file_name = infer_name_from_url(&module_specifier).map(PathBuf::from)?;
Some(output.join(infer_file_name))
} else {
Some(output)
}
}).or_else(|| {
infer_name_from_url(&module_specifier).map(PathBuf::from)
}).ok_or_else(|| generic_error(
"An executable name was not provided. One could not be inferred from the URL. Aborting.",
))?;
let graph =
create_graph_and_maybe_check(module_specifier.clone(), &ps, debug).await?;
let source = (graph.as_ref().modules().len() == 1)
.then(|| {
let root_module = graph.as_ref().modules()[0];
match root_module.media_type {
MediaType::JavaScript => Some(Ok(root_module.source.to_string())),
_ => None,
}
})
.flatten()
.unwrap_or_else(|| {
bundle_module_graph(graph.as_ref(), &ps, &flags).map(|r| r.0)
})?;
info!(
"{} {}",
colors::green("Compile"),
module_specifier.to_string()
);
// Select base binary based on target
let original_binary =
tools::standalone::get_base_binary(deno_dir, compile_flags.target.clone())
.await?;
let final_bin = tools::standalone::create_standalone_binary(
original_binary,
source,
run_flags,
)?;
info!("{} {}", colors::green("Emit"), output.display());
tools::standalone::write_standalone_binary(
output.clone(),
compile_flags.target,
final_bin,
)
.await?;
Ok(0)
}
async fn info_command(
flags: Flags,
info_flags: InfoFlags,
) -> Result<i32, AnyError> {
let ps = ProcState::build(flags).await?;
if let Some(specifier) = info_flags.file {
let specifier = resolve_url_or_path(&specifier)?;
let mut cache = cache::FetchCacher::new(
ps.dir.gen_cache.clone(),
ps.file_fetcher.clone(),
Permissions::allow_all(),
Permissions::allow_all(),
);
let maybe_locker = lockfile::as_maybe_locker(ps.lockfile.clone());
let maybe_import_map_resolver =
ps.maybe_import_map.clone().map(ImportMapResolver::new);
let maybe_jsx_resolver = ps
.maybe_config_file
.as_ref()
.map(|cf| {
cf.to_maybe_jsx_import_source_module()
.map(|im| JsxResolver::new(im, maybe_import_map_resolver.clone()))
})
.flatten();
let maybe_resolver = if maybe_jsx_resolver.is_some() {
maybe_jsx_resolver.as_ref().map(|jr| jr.as_resolver())
} else {
maybe_import_map_resolver
.as_ref()
.map(|im| im.as_resolver())
};
let graph = deno_graph::create_graph(
vec![specifier],
false,
None,
&mut cache,
maybe_resolver,
maybe_locker,
None,
None,
)
.await;
if info_flags.json {
write_json_to_stdout(&json!(graph))?;
} else {
write_to_stdout_ignore_sigpipe(graph.to_string().as_bytes())?;
}
} else {
// If it was just "deno info" print location of caches and exit
print_cache_info(&ps, info_flags.json, ps.flags.location.as_ref())?;
}
Ok(0)
}
async fn install_command(
flags: Flags,
install_flags: InstallFlags,
) -> Result<i32, AnyError> {
let mut preload_flags = flags.clone();
preload_flags.inspect = None;
preload_flags.inspect_brk = None;
let permissions = Permissions::from_options(&preload_flags.clone().into());
let ps = ProcState::build(preload_flags).await?;
let main_module = resolve_url_or_path(&install_flags.module_url)?;
let mut worker =
create_main_worker(&ps, main_module.clone(), permissions, vec![]);
// First, fetch and compile the module; this step ensures that the module exists.
worker.preload_module(&main_module, true).await?;
tools::installer::install(flags, install_flags)?;
Ok(0)
}
async fn uninstall_command(
uninstall_flags: UninstallFlags,
) -> Result<i32, AnyError> {
tools::installer::uninstall(uninstall_flags.name, uninstall_flags.root)?;
Ok(0)
}
async fn lsp_command() -> Result<i32, AnyError> {
lsp::start().await?;
Ok(0)
}
async fn lint_command(
flags: Flags,
lint_flags: LintFlags,
) -> Result<i32, AnyError> {
if lint_flags.rules {
tools::lint::print_rules_list(lint_flags.json);
return Ok(0);
}
let ps = ProcState::build(flags.clone()).await?;
let maybe_lint_config = if let Some(config_file) = &ps.maybe_config_file {
config_file.to_lint_config()?
} else {
None
};
tools::lint::lint(maybe_lint_config, lint_flags, flags.watch.is_some())
.await?;
Ok(0)
}
async fn cache_command(
flags: Flags,
cache_flags: CacheFlags,
) -> Result<i32, AnyError> {
let lib = if flags.unstable {
emit::TypeLib::UnstableDenoWindow
} else {
emit::TypeLib::DenoWindow
};
let ps = ProcState::build(flags).await?;
for file in cache_flags.files {
let specifier = resolve_url_or_path(&file)?;
ps.prepare_module_load(
vec![specifier],
false,
lib.clone(),
Permissions::allow_all(),
Permissions::allow_all(),
false,
)
.await?;
}
Ok(0)
}
async fn eval_command(
flags: Flags,
eval_flags: EvalFlags,
) -> Result<i32, AnyError> {
// deno_graph works off of extensions for local files to determine the media
// type, and so our "fake" specifier needs to have the proper extension.
let main_module =
resolve_url_or_path(&format!("./$deno$eval.{}", eval_flags.ext)).unwrap();
let permissions = Permissions::from_options(&flags.clone().into());
let ps = ProcState::build(flags.clone()).await?;
let mut worker =
create_main_worker(&ps, main_module.clone(), permissions, vec![]);
// Create a dummy source file.
let source_code = if eval_flags.print {
format!("console.log({})", eval_flags.code)
} else {
eval_flags.code
}
.into_bytes();
let file = File {
local: main_module.clone().to_file_path().unwrap(),
maybe_types: None,
media_type: MediaType::Unknown,
source: Arc::new(String::from_utf8(source_code)?),
specifier: main_module.clone(),
maybe_headers: None,
};
// Save our fake file into file fetcher cache
// to allow module access by TS compiler.
ps.file_fetcher.insert_cached(file);
debug!("main_module {}", &main_module);
if flags.compat {
worker.execute_side_module(&compat::GLOBAL_URL).await?;
}
worker.execute_main_module(&main_module).await?;
worker.dispatch_load_event(&located_script_name!())?;
worker.run_event_loop(false).await?;
worker.dispatch_unload_event(&located_script_name!())?;
Ok(0)
}
async fn create_graph_and_maybe_check(
root: ModuleSpecifier,
ps: &ProcState,
debug: bool,
) -> Result<Arc<deno_graph::ModuleGraph>, AnyError> {
let mut cache = cache::FetchCacher::new(
ps.dir.gen_cache.clone(),
ps.file_fetcher.clone(),
Permissions::allow_all(),
Permissions::allow_all(),
);
let maybe_locker = lockfile::as_maybe_locker(ps.lockfile.clone());
let maybe_imports = if let Some(config_file) = &ps.maybe_config_file {
config_file.to_maybe_imports()?
} else {
None
};
let maybe_import_map_resolver =
ps.maybe_import_map.clone().map(ImportMapResolver::new);
let maybe_jsx_resolver = ps
.maybe_config_file
.as_ref()
.map(|cf| {
cf.to_maybe_jsx_import_source_module()
.map(|im| JsxResolver::new(im, maybe_import_map_resolver.clone()))
})
.flatten();
let maybe_resolver = if maybe_jsx_resolver.is_some() {
maybe_jsx_resolver.as_ref().map(|jr| jr.as_resolver())
} else {
maybe_import_map_resolver
.as_ref()
.map(|im| im.as_resolver())
};
let graph = Arc::new(
deno_graph::create_graph(
vec![root],
false,
maybe_imports,
&mut cache,
maybe_resolver,
maybe_locker,
None,
None,
)
.await,
);
let check_js = ps
.maybe_config_file
.as_ref()
.map(|cf| cf.get_check_js())
.unwrap_or(false);
graph_valid(&graph, ps.flags.check != CheckFlag::None, check_js)?;
graph_lock_or_exit(&graph);
if ps.flags.check != CheckFlag::None {
let lib = if ps.flags.unstable {
emit::TypeLib::UnstableDenoWindow
} else {
emit::TypeLib::DenoWindow
};
let (ts_config, maybe_ignored_options) = emit::get_ts_config(
emit::ConfigType::Check {
tsc_emit: false,
lib,
},
ps.maybe_config_file.as_ref(),
None,
)?;
if let Some(ignored_options) = maybe_ignored_options {
eprintln!("{}", ignored_options);
}
let maybe_config_specifier =
ps.maybe_config_file.as_ref().map(|cf| cf.specifier.clone());
let check_result = emit::check_and_maybe_emit(
&graph.roots,
Arc::new(RwLock::new(graph.as_ref().into())),
&mut cache,
emit::CheckOptions {
check: ps.flags.check.clone(),
debug,
emit_with_diagnostics: false,
maybe_config_specifier,
ts_config,
log_checks: true,
reload: ps.flags.reload,
reload_exclusions: Default::default(),
},
)?;
debug!("{}", check_result.stats);
if !check_result.diagnostics.is_empty() {
return Err(check_result.diagnostics.into());
}
}
Ok(graph)
}
fn bundle_module_graph(
graph: &deno_graph::ModuleGraph,
ps: &ProcState,
flags: &Flags,
) -> Result<(String, Option<String>), AnyError> {
info!("{} {}", colors::green("Bundle"), graph.roots[0]);
let (ts_config, maybe_ignored_options) = emit::get_ts_config(
emit::ConfigType::Bundle,
ps.maybe_config_file.as_ref(),
None,
)?;
if flags.check == CheckFlag::None {
if let Some(ignored_options) = maybe_ignored_options {
eprintln!("{}", ignored_options);
}
}
emit::bundle(
graph,
emit::BundleOptions {
bundle_type: emit::BundleType::Module,
ts_config,
emit_ignore_directives: true,
},
)
}
/// A function that converts a float to a string the represents a human
/// readable version of that number.
fn human_size(size: f64) -> String {
let negative = if size.is_sign_positive() { "" } else { "-" };
let size = size.abs();
let units = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
if size < 1_f64 {
return format!("{}{}{}", negative, size, "B");
}
let delimiter = 1024_f64;
let exponent = std::cmp::min(
(size.ln() / delimiter.ln()).floor() as i32,
(units.len() - 1) as i32,
);
let pretty_bytes = format!("{:.2}", size / delimiter.powi(exponent))
.parse::<f64>()
.unwrap()
* 1_f64;
let unit = units[exponent as usize];
format!("{}{}{}", negative, pretty_bytes, unit)
}
async fn bundle_command(
flags: Flags,
bundle_flags: BundleFlags,
) -> Result<i32, AnyError> {
let debug = flags.log_level == Some(log::Level::Debug);
let resolver = |_| {
let flags = flags.clone();
let source_file1 = bundle_flags.source_file.clone();
let source_file2 = bundle_flags.source_file.clone();
async move {
let module_specifier = resolve_url_or_path(&source_file1)?;
debug!(">>>>> bundle START");
let ps = ProcState::build(flags.clone()).await?;
let graph =
create_graph_and_maybe_check(module_specifier, &ps, debug).await?;
let mut paths_to_watch: Vec<PathBuf> = graph
.specifiers()
.iter()
.filter_map(|(_, r)| {
r.as_ref()
.ok()
.map(|(s, _)| s.to_file_path().ok())
.flatten()
})
.collect();
if let Some(import_map) = ps.flags.import_map_path.as_ref() {
paths_to_watch
.push(fs_util::resolve_from_cwd(std::path::Path::new(import_map))?);
}
Ok((paths_to_watch, graph, ps))
}
.map(move |result| match result {
Ok((paths_to_watch, graph, ps)) => ResolutionResult::Restart {
paths_to_watch,
result: Ok((ps, graph)),
},
Err(e) => ResolutionResult::Restart {
paths_to_watch: vec![PathBuf::from(source_file2)],
result: Err(e),
},
})
};
let operation = |(ps, graph): (ProcState, Arc<deno_graph::ModuleGraph>)| {
let flags = flags.clone();
let out_file = bundle_flags.out_file.clone();
async move {
let (bundle_emit, maybe_bundle_map) =
bundle_module_graph(graph.as_ref(), &ps, &flags)?;
debug!(">>>>> bundle END");
if let Some(out_file) = out_file.as_ref() {
let output_bytes = bundle_emit.as_bytes();
let output_len = output_bytes.len();
fs_util::write_file(out_file, output_bytes, 0o644)?;
info!(
"{} {:?} ({})",
colors::green("Emit"),
out_file,
colors::gray(human_size(output_len as f64))
);
if let Some(bundle_map) = maybe_bundle_map {
let map_bytes = bundle_map.as_bytes();
let map_len = map_bytes.len();
let ext = if let Some(curr_ext) = out_file.extension() {
format!("{}.map", curr_ext.to_string_lossy())
} else {
"map".to_string()
};
let map_out_file = out_file.with_extension(ext);
fs_util::write_file(&map_out_file, map_bytes, 0o644)?;
info!(
"{} {:?} ({})",
colors::green("Emit"),
map_out_file,
colors::gray(human_size(map_len as f64))
);
}
} else {
println!("{}", bundle_emit);
}
Ok(())
}
};
if flags.watch.is_some() {
file_watcher::watch_func(resolver, operation, "Bundle").await?;
} else {
let module_graph =
if let ResolutionResult::Restart { result, .. } = resolver(None).await {
result?
} else {
unreachable!();
};
operation(module_graph).await?;
}
Ok(0)
}
async fn doc_command(
flags: Flags,
doc_flags: DocFlags,
) -> Result<i32, AnyError> {
tools::doc::print_docs(flags, doc_flags).await?;
Ok(0)
}
async fn format_command(
flags: Flags,
fmt_flags: FmtFlags,
) -> Result<i32, AnyError> {
let ps = ProcState::build(flags.clone()).await?;
let maybe_fmt_config = if let Some(config_file) = &ps.maybe_config_file {
config_file.to_fmt_config()?
} else {
None
};
if fmt_flags.files.len() == 1 && fmt_flags.files[0].to_string_lossy() == "-" {
tools::fmt::format_stdin(
fmt_flags,
maybe_fmt_config.map(|c| c.options).unwrap_or_default(),
)?;
return Ok(0);
}
tools::fmt::format(fmt_flags, flags.watch.is_some(), maybe_fmt_config)
.await?;
Ok(0)
}
async fn repl_command(
flags: Flags,
repl_flags: ReplFlags,
) -> Result<i32, AnyError> {
let main_module = resolve_url_or_path("./$deno$repl.ts").unwrap();
let permissions = Permissions::from_options(&flags.clone().into());
let ps = ProcState::build(flags.clone()).await?;
let mut worker =
create_main_worker(&ps, main_module.clone(), permissions, vec![]);
if flags.compat {
worker.execute_side_module(&compat::GLOBAL_URL).await?;
compat::add_global_require(&mut worker.js_runtime, main_module.as_str())?;
worker.run_event_loop(false).await?;
compat::setup_builtin_modules(&mut worker.js_runtime)?;
}
worker.run_event_loop(false).await?;
tools::repl::run(&ps, worker, repl_flags.eval).await
}
async fn run_from_stdin(flags: Flags) -> Result<i32, AnyError> {
let ps = ProcState::build(flags.clone()).await?;
let permissions = Permissions::from_options(&flags.clone().into());
let main_module = resolve_url_or_path("./$deno$stdin.ts").unwrap();
let mut worker =
create_main_worker(&ps.clone(), main_module.clone(), permissions, vec![]);
let mut source = Vec::new();
std::io::stdin().read_to_end(&mut source)?;
// Create a dummy source file.
let source_file = File {
local: main_module.clone().to_file_path().unwrap(),
maybe_types: None,
media_type: MediaType::TypeScript,
source: Arc::new(String::from_utf8(source)?),
specifier: main_module.clone(),
maybe_headers: None,
};
// Save our fake file into file fetcher cache
// to allow module access by TS compiler
ps.file_fetcher.insert_cached(source_file);
debug!("main_module {}", main_module);
if flags.compat {
worker.execute_side_module(&compat::GLOBAL_URL).await?;
}
worker.execute_main_module(&main_module).await?;
worker.dispatch_load_event(&located_script_name!())?;
worker.run_event_loop(false).await?;
worker.dispatch_unload_event(&located_script_name!())?;
Ok(worker.get_exit_code())
}
// TODO(bartlomieju): this function is not handling `exit_code` set by the runtime
// code properly.
async fn run_with_watch(flags: Flags, script: String) -> Result<i32, AnyError> {
let resolver = |_| {
let script1 = script.clone();
let script2 = script.clone();
let flags = flags.clone();
let watch_flag = flags.watch.clone();
async move {
let main_module = resolve_url_or_path(&script1)?;
let ps = ProcState::build(flags).await?;
let mut cache = cache::FetchCacher::new(
ps.dir.gen_cache.clone(),
ps.file_fetcher.clone(),
Permissions::allow_all(),
Permissions::allow_all(),
);
let maybe_locker = lockfile::as_maybe_locker(ps.lockfile.clone());
let maybe_imports = if let Some(config_file) = &ps.maybe_config_file {
config_file.to_maybe_imports()?
} else {
None
};
let maybe_import_map_resolver =
ps.maybe_import_map.clone().map(ImportMapResolver::new);
let maybe_jsx_resolver = ps
.maybe_config_file
.as_ref()
.map(|cf| {
cf.to_maybe_jsx_import_source_module()
.map(|im| JsxResolver::new(im, maybe_import_map_resolver.clone()))
})
.flatten();
let maybe_resolver = if maybe_jsx_resolver.is_some() {
maybe_jsx_resolver.as_ref().map(|jr| jr.as_resolver())
} else {
maybe_import_map_resolver
.as_ref()
.map(|im| im.as_resolver())
};
let graph = deno_graph::create_graph(
vec![main_module.clone()],
false,
maybe_imports,
&mut cache,
maybe_resolver,
maybe_locker,
None,
None,
)
.await;
let check_js = ps
.maybe_config_file
.as_ref()
.map(|cf| cf.get_check_js())
.unwrap_or(false);
graph_valid(&graph, ps.flags.check != flags::CheckFlag::None, check_js)?;
// Find all local files in graph
let mut paths_to_watch: Vec<PathBuf> = graph
.specifiers()
.iter()
.filter_map(|(_, r)| {
r.as_ref()
.ok()
.map(|(s, _)| s.to_file_path().ok())
.flatten()
})
.collect();
// Add the extra files listed in the watch flag
if let Some(watch_paths) = watch_flag {
paths_to_watch.extend(watch_paths);
}
if let Some(import_map) = ps.flags.import_map_path.as_ref() {
paths_to_watch
.push(fs_util::resolve_from_cwd(std::path::Path::new(import_map))?);
}
Ok((paths_to_watch, main_module, ps))
}
.map(move |result| match result {
Ok((paths_to_watch, module_info, ps)) => ResolutionResult::Restart {
paths_to_watch,
result: Ok((ps, module_info)),
},
Err(e) => ResolutionResult::Restart {
paths_to_watch: vec![PathBuf::from(script2)],
result: Err(e),
},
})
};
/// The FileWatcherModuleExecutor provides module execution with safe dispatching of life-cycle events by tracking the
/// state of any pending events and emitting accordingly on drop in the case of a future
/// cancellation.
struct FileWatcherModuleExecutor {
worker: MainWorker,
pending_unload: bool,
compat: bool,
}
impl FileWatcherModuleExecutor {
pub fn new(worker: MainWorker, compat: bool) -> FileWatcherModuleExecutor {
FileWatcherModuleExecutor {
worker,
pending_unload: false,
compat,
}
}
/// Execute the given main module emitting load and unload events before and after execution
/// respectively.
pub async fn execute(
&mut self,
main_module: &ModuleSpecifier,
) -> Result<(), AnyError> {
if self.compat {
self.worker.execute_side_module(&compat::GLOBAL_URL).await?;
}
self.worker.execute_main_module(main_module).await?;
self.worker.dispatch_load_event(&located_script_name!())?;
self.pending_unload = true;
let result = self.worker.run_event_loop(false).await;
self.pending_unload = false;
if let Err(err) = result {
return Err(err);
}
self.worker.dispatch_unload_event(&located_script_name!())?;
Ok(())
}
}
impl Drop for FileWatcherModuleExecutor {
fn drop(&mut self) {
if self.pending_unload {
self
.worker
.dispatch_unload_event(&located_script_name!())
.unwrap();
}
}
}
let operation = |(ps, main_module): (ProcState, ModuleSpecifier)| {
let flags = flags.clone();
let permissions = Permissions::from_options(&flags.clone().into());
async move {
// We make use an module executor guard to ensure that unload is always fired when an
// operation is called.
let mut executor = FileWatcherModuleExecutor::new(
create_main_worker(&ps, main_module.clone(), permissions, vec![]),
flags.compat,
);
executor.execute(&main_module).await?;
Ok(())
}
};
file_watcher::watch_func(resolver, operation, "Process").await?;
Ok(0)
}
async fn run_command(
flags: Flags,
run_flags: RunFlags,
) -> Result<i32, AnyError> {
// Read script content from stdin
if run_flags.script == "-" {
return run_from_stdin(flags).await;
}
if flags.watch.is_some() {
return run_with_watch(flags, run_flags.script).await;
}
// TODO(bartlomieju): it should not be resolved here if we're in compat mode
// because it might be a bare specifier
// TODO(bartlomieju): actually I think it will also fail if there's an import
// map specified and bare specifier is used on the command line - this should
// probably call `ProcState::resolve` instead
let main_module = resolve_url_or_path(&run_flags.script)?;
let ps = ProcState::build(flags.clone()).await?;
let permissions = Permissions::from_options(&flags.clone().into());
let mut worker =
create_main_worker(&ps, main_module.clone(), permissions, vec![]);
let mut maybe_coverage_collector =
if let Some(ref coverage_dir) = ps.coverage_dir {
let session = worker.create_inspector_session().await;
let coverage_dir = PathBuf::from(coverage_dir);
let mut coverage_collector =
tools::coverage::CoverageCollector::new(coverage_dir, session);
worker
.with_event_loop(coverage_collector.start_collecting().boxed_local())
.await?;
Some(coverage_collector)
} else {
None
};
debug!("main_module {}", main_module);
if flags.compat {
// TODO(bartlomieju): fix me
assert_eq!(main_module.scheme(), "file");
// Set up Node globals
worker.execute_side_module(&compat::GLOBAL_URL).await?;
// And `module` module that we'll use for checking which
// loader to use and potentially load CJS module with.
// This allows to skip permission check for `--allow-net`
// which would otherwise be requested by dynamically importing
// this file.
worker.execute_side_module(&compat::MODULE_URL).await?;
let use_esm_loader = compat::check_if_should_use_esm_loader(&main_module)?;
if use_esm_loader {
// ES module execution in Node compatiblity mode
worker.execute_main_module(&main_module).await?;
} else {
// CJS module execution in Node compatiblity mode
compat::load_cjs_module(
&mut worker.js_runtime,
&main_module.to_file_path().unwrap().display().to_string(),
true,
)?;
}
} else {
// Regular ES module execution
worker.execute_main_module(&main_module).await?;
}
worker.dispatch_load_event(&located_script_name!())?;
worker
.run_event_loop(maybe_coverage_collector.is_none())
.await?;
worker.dispatch_unload_event(&located_script_name!())?;
if let Some(coverage_collector) = maybe_coverage_collector.as_mut() {
worker
.with_event_loop(coverage_collector.stop_collecting().boxed_local())
.await?;
}
Ok(worker.get_exit_code())
}
async fn coverage_command(
flags: Flags,
coverage_flags: CoverageFlags,
) -> Result<i32, AnyError> {
if coverage_flags.files.is_empty() {
return Err(generic_error("No matching coverage profiles found"));
}
tools::coverage::cover_files(flags, coverage_flags).await?;
Ok(0)
}
async fn test_command(
flags: Flags,
test_flags: TestFlags,
) -> Result<i32, AnyError> {
if let Some(ref coverage_dir) = flags.coverage_dir {
std::fs::create_dir_all(&coverage_dir)?;
env::set_var(
"DENO_UNSTABLE_COVERAGE_DIR",
PathBuf::from(coverage_dir).canonicalize()?,
);
}
if flags.watch.is_some() {
tools::test::run_tests_with_watch(flags, test_flags).await?;
} else {
tools::test::run_tests(flags, test_flags).await?;
}
Ok(0)
}
async fn completions_command(
_flags: Flags,
completions_flags: CompletionsFlags,
) -> Result<i32, AnyError> {
write_to_stdout_ignore_sigpipe(&completions_flags.buf)?;
Ok(0)
}
async fn types_command(flags: Flags) -> Result<i32, AnyError> {
let types = get_types(flags.unstable);
write_to_stdout_ignore_sigpipe(types.as_bytes())?;
Ok(0)
}
async fn upgrade_command(
_flags: Flags,
upgrade_flags: UpgradeFlags,
) -> Result<i32, AnyError> {
tools::upgrade::upgrade(upgrade_flags).await?;
Ok(0)
}
fn init_v8_flags(v8_flags: &[String]) {
let v8_flags_includes_help = v8_flags
.iter()
.any(|flag| flag == "-help" || flag == "--help");
// Keep in sync with `standalone.rs`.
let v8_flags = once("UNUSED_BUT_NECESSARY_ARG0".to_owned())
.chain(v8_flags.iter().cloned())
.collect::<Vec<_>>();
let unrecognized_v8_flags = v8_set_flags(v8_flags)
.into_iter()
.skip(1)
.collect::<Vec<_>>();
if !unrecognized_v8_flags.is_empty() {
for f in unrecognized_v8_flags {
eprintln!("error: V8 did not recognize flag '{}'", f);
}
eprintln!("\nFor a list of V8 flags, use '--v8-flags=--help'");
std::process::exit(1);
}
if v8_flags_includes_help {
std::process::exit(0);
}
}
fn get_subcommand(
flags: Flags,
) -> Pin<Box<dyn Future<Output = Result<i32, AnyError>>>> {
match flags.clone().subcommand {
DenoSubcommand::Bundle(bundle_flags) => {
bundle_command(flags, bundle_flags).boxed_local()
}
DenoSubcommand::Doc(doc_flags) => {
doc_command(flags, doc_flags).boxed_local()
}
DenoSubcommand::Eval(eval_flags) => {
eval_command(flags, eval_flags).boxed_local()
}
DenoSubcommand::Cache(cache_flags) => {
cache_command(flags, cache_flags).boxed_local()
}
DenoSubcommand::Compile(compile_flags) => {
compile_command(flags, compile_flags).boxed_local()
}
DenoSubcommand::Coverage(coverage_flags) => {
coverage_command(flags, coverage_flags).boxed_local()
}
DenoSubcommand::Fmt(fmt_flags) => {
format_command(flags, fmt_flags).boxed_local()
}
DenoSubcommand::Info(info_flags) => {
info_command(flags, info_flags).boxed_local()
}
DenoSubcommand::Install(install_flags) => {
install_command(flags, install_flags).boxed_local()
}
DenoSubcommand::Uninstall(uninstall_flags) => {
uninstall_command(uninstall_flags).boxed_local()
}
DenoSubcommand::Lsp => lsp_command().boxed_local(),
DenoSubcommand::Lint(lint_flags) => {
lint_command(flags, lint_flags).boxed_local()
}
DenoSubcommand::Repl(repl_flags) => {
repl_command(flags, repl_flags).boxed_local()
}
DenoSubcommand::Run(run_flags) => {
run_command(flags, run_flags).boxed_local()
}
DenoSubcommand::Test(test_flags) => {
test_command(flags, test_flags).boxed_local()
}
DenoSubcommand::Completions(completions_flags) => {
completions_command(flags, completions_flags).boxed_local()
}
DenoSubcommand::Types => types_command(flags).boxed_local(),
DenoSubcommand::Upgrade(upgrade_flags) => {
upgrade_command(flags, upgrade_flags).boxed_local()
}
}
}
fn setup_panic_hook() {
// This function does two things inside of the panic hook:
// - Tokio does not exit the process when a task panics, so we define a custom
// panic hook to implement this behaviour.
// - We print a message to stderr to indicate that this is a bug in Deno, and
// should be reported to us.
let orig_hook = std::panic::take_hook();
std::panic::set_hook(Box::new(move |panic_info| {
eprintln!("\n============================================================");
eprintln!("Deno has panicked. This is a bug in Deno. Please report this");
eprintln!("at https://github.com/denoland/deno/issues/new.");
eprintln!("If you can reliably reproduce this panic, include the");
eprintln!("reproduction steps and re-run with the RUST_BACKTRACE=1 env");
eprintln!("var set and include the backtrace in your report.");
eprintln!();
eprintln!(
"Platform: {} {}",
std::env::consts::OS,
std::env::consts::ARCH
);
eprintln!("Version: {}", version::deno());
eprintln!("Args: {:?}", std::env::args().collect::<Vec<_>>());
eprintln!();
orig_hook(panic_info);
std::process::exit(1);
}));
}
fn unwrap_or_exit<T>(result: Result<T, AnyError>) -> T {
match result {
Ok(value) => value,
Err(error) => {
eprintln!(
"{}: {}",
colors::red_bold("error"),
format!("{:?}", error).trim_start_matches("error: ")
);
std::process::exit(1);
}
}
}
pub fn main() {
setup_panic_hook();
unix_util::raise_fd_limit();
windows_util::ensure_stdio_open();
#[cfg(windows)]
colors::enable_ansi(); // For Windows 10
let args: Vec<String> = env::args().collect();
let standalone_res = match standalone::extract_standalone(args.clone()) {
Ok(Some((metadata, bundle))) => {
run_basic(standalone::run(bundle, metadata))
}
Ok(None) => Ok(()),
Err(err) => Err(err),
};
// TODO(bartlomieju): doesn't handle exit code set by the runtime properly
unwrap_or_exit(standalone_res);
let flags = match flags::flags_from_vec(args) {
Ok(flags) => flags,
Err(err @ clap::Error { .. })
if err.kind == clap::ErrorKind::DisplayHelp
|| err.kind == clap::ErrorKind::DisplayVersion =>
{
err.print().unwrap();
std::process::exit(0);
}
Err(err) => unwrap_or_exit(Err(AnyError::from(err))),
};
if !flags.v8_flags.is_empty() {
init_v8_flags(&*flags.v8_flags);
}
logger::init(flags.log_level);
let exit_code = unwrap_or_exit(run_basic(get_subcommand(flags)));
std::process::exit(exit_code);
}
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