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node_options.cc
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node_options.cc
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#include "node_options.h" // NOLINT(build/include_inline)
#include "node_options-inl.h"
#include "env-inl.h"
#include "node_binding.h"
#include "node_external_reference.h"
#include "node_internals.h"
#include "node_sea.h"
#if HAVE_OPENSSL
#include "openssl/opensslv.h"
#endif
#include <algorithm>
#include <charconv>
#include <limits>
#include <sstream>
#include <string_view>
using v8::Boolean;
using v8::Context;
using v8::FunctionCallbackInfo;
using v8::Integer;
using v8::Isolate;
using v8::Local;
using v8::Map;
using v8::Number;
using v8::Object;
using v8::Undefined;
using v8::Value;
namespace node {
namespace per_process {
Mutex cli_options_mutex;
std::shared_ptr<PerProcessOptions> cli_options{new PerProcessOptions()};
} // namespace per_process
void DebugOptions::CheckOptions(std::vector<std::string>* errors,
std::vector<std::string>* argv) {
#if !NODE_USE_V8_PLATFORM && !HAVE_INSPECTOR
if (inspector_enabled) {
errors->push_back("Inspector is not available when Node is compiled "
"--without-v8-platform and --without-inspector.");
}
#endif
if (deprecated_debug) {
errors->push_back("[DEP0062]: `node --debug` and `node --debug-brk` "
"are invalid. Please use `node --inspect` and "
"`node --inspect-brk` instead.");
}
using std::string_view_literals::operator""sv;
const std::vector<std::string_view> destinations =
SplitString(inspect_publish_uid_string, ","sv);
inspect_publish_uid.console = false;
inspect_publish_uid.http = false;
for (const std::string_view destination : destinations) {
if (destination == "stderr"sv) {
inspect_publish_uid.console = true;
} else if (destination == "http"sv) {
inspect_publish_uid.http = true;
} else {
errors->push_back("--inspect-publish-uid destination can be "
"stderr or http");
}
}
}
void PerProcessOptions::CheckOptions(std::vector<std::string>* errors,
std::vector<std::string>* argv) {
#if HAVE_OPENSSL
if (use_openssl_ca && use_bundled_ca) {
errors->push_back("either --use-openssl-ca or --use-bundled-ca can be "
"used, not both");
}
// Any value less than 2 disables use of the secure heap.
if (secure_heap >= 2) {
if ((secure_heap & (secure_heap - 1)) != 0)
errors->push_back("--secure-heap must be a power of 2");
secure_heap_min =
std::min({
secure_heap,
secure_heap_min,
static_cast<int64_t>(std::numeric_limits<int>::max())});
secure_heap_min = std::max(static_cast<int64_t>(2), secure_heap_min);
if ((secure_heap_min & (secure_heap_min - 1)) != 0)
errors->push_back("--secure-heap-min must be a power of 2");
}
#endif // HAVE_OPENSSL
if (use_largepages != "off" &&
use_largepages != "on" &&
use_largepages != "silent") {
errors->push_back("invalid value for --use-largepages");
}
per_isolate->CheckOptions(errors, argv);
}
void PerIsolateOptions::CheckOptions(std::vector<std::string>* errors,
std::vector<std::string>* argv) {
per_env->CheckOptions(errors, argv);
}
void EnvironmentOptions::CheckOptions(std::vector<std::string>* errors,
std::vector<std::string>* argv) {
if (has_policy_integrity_string && experimental_policy.empty()) {
errors->push_back("--policy-integrity requires "
"--experimental-policy be enabled");
}
if (has_policy_integrity_string && experimental_policy_integrity.empty()) {
errors->push_back("--policy-integrity cannot be empty");
}
if (!input_type.empty()) {
if (input_type != "commonjs" && input_type != "module") {
errors->push_back("--input-type must be \"module\" or \"commonjs\"");
}
}
if (!type.empty()) {
if (type != "commonjs" && type != "module") {
errors->push_back("--experimental-default-type must be "
"\"module\" or \"commonjs\"");
}
}
if (syntax_check_only && has_eval_string) {
errors->push_back("either --check or --eval can be used, not both");
}
if (!unhandled_rejections.empty() &&
unhandled_rejections != "warn-with-error-code" &&
unhandled_rejections != "throw" &&
unhandled_rejections != "strict" &&
unhandled_rejections != "warn" &&
unhandled_rejections != "none") {
errors->push_back("invalid value for --unhandled-rejections");
}
if (tls_min_v1_3 && tls_max_v1_2) {
errors->push_back("either --tls-min-v1.3 or --tls-max-v1.2 can be "
"used, not both");
}
if (heap_snapshot_near_heap_limit < 0) {
errors->push_back("--heapsnapshot-near-heap-limit must not be negative");
}
if (test_runner) {
if (syntax_check_only) {
errors->push_back("either --test or --check can be used, not both");
}
if (has_eval_string) {
errors->push_back("either --test or --eval can be used, not both");
}
if (force_repl) {
errors->push_back("either --test or --interactive can be used, not both");
}
if (watch_mode_paths.size() > 0) {
errors->push_back(
"--watch-path cannot be used in combination with --test");
}
#ifndef ALLOW_ATTACHING_DEBUGGER_IN_TEST_RUNNER
debug_options_.allow_attaching_debugger = false;
#endif
}
if (watch_mode) {
if (syntax_check_only) {
errors->push_back("either --watch or --check can be used, not both");
} else if (has_eval_string) {
errors->push_back("either --watch or --eval can be used, not both");
} else if (force_repl) {
errors->push_back("either --watch or --interactive "
"can be used, not both");
} else if (!test_runner && (argv->size() < 1 || (*argv)[1].empty())) {
errors->push_back("--watch requires specifying a file");
}
#ifndef ALLOW_ATTACHING_DEBUGGER_IN_WATCH_MODE
debug_options_.allow_attaching_debugger = false;
#endif
}
#if HAVE_INSPECTOR
if (!cpu_prof) {
if (!cpu_prof_name.empty()) {
errors->push_back("--cpu-prof-name must be used with --cpu-prof");
}
if (!cpu_prof_dir.empty()) {
errors->push_back("--cpu-prof-dir must be used with --cpu-prof");
}
// We can't catch the case where the value passed is the default value,
// then the option just becomes a noop which is fine.
if (cpu_prof_interval != kDefaultCpuProfInterval) {
errors->push_back("--cpu-prof-interval must be used with --cpu-prof");
}
}
if (cpu_prof && cpu_prof_dir.empty() && !diagnostic_dir.empty()) {
cpu_prof_dir = diagnostic_dir;
}
if (!heap_prof) {
if (!heap_prof_name.empty()) {
errors->push_back("--heap-prof-name must be used with --heap-prof");
}
if (!heap_prof_dir.empty()) {
errors->push_back("--heap-prof-dir must be used with --heap-prof");
}
// We can't catch the case where the value passed is the default value,
// then the option just becomes a noop which is fine.
if (heap_prof_interval != kDefaultHeapProfInterval) {
errors->push_back("--heap-prof-interval must be used with --heap-prof");
}
}
if (heap_prof && heap_prof_dir.empty() && !diagnostic_dir.empty()) {
heap_prof_dir = diagnostic_dir;
}
debug_options_.CheckOptions(errors, argv);
#endif // HAVE_INSPECTOR
}
namespace options_parser {
class DebugOptionsParser : public OptionsParser<DebugOptions> {
public:
DebugOptionsParser();
};
class EnvironmentOptionsParser : public OptionsParser<EnvironmentOptions> {
public:
EnvironmentOptionsParser();
explicit EnvironmentOptionsParser(const DebugOptionsParser& dop)
: EnvironmentOptionsParser() {
Insert(dop, &EnvironmentOptions::get_debug_options);
}
};
class PerIsolateOptionsParser : public OptionsParser<PerIsolateOptions> {
public:
PerIsolateOptionsParser() = delete;
explicit PerIsolateOptionsParser(const EnvironmentOptionsParser& eop);
};
class PerProcessOptionsParser : public OptionsParser<PerProcessOptions> {
public:
PerProcessOptionsParser() = delete;
explicit PerProcessOptionsParser(const PerIsolateOptionsParser& iop);
};
#if HAVE_INSPECTOR
const DebugOptionsParser _dop_instance{};
const EnvironmentOptionsParser _eop_instance{_dop_instance};
// This Parse is not dead code. It is used by embedders (e.g., Electron).
template <>
void Parse(
StringVector* const args, StringVector* const exec_args,
StringVector* const v8_args,
DebugOptions* const options,
OptionEnvvarSettings required_env_settings, StringVector* const errors) {
_dop_instance.Parse(
args, exec_args, v8_args, options, required_env_settings, errors);
}
#else
const EnvironmentOptionsParser _eop_instance{};
#endif // HAVE_INSPECTOR
const PerIsolateOptionsParser _piop_instance{_eop_instance};
const PerProcessOptionsParser _ppop_instance{_piop_instance};
template <>
void Parse(
StringVector* const args, StringVector* const exec_args,
StringVector* const v8_args,
PerIsolateOptions* const options,
OptionEnvvarSettings required_env_settings, StringVector* const errors) {
_piop_instance.Parse(
args, exec_args, v8_args, options, required_env_settings, errors);
}
template <>
void Parse(
StringVector* const args, StringVector* const exec_args,
StringVector* const v8_args,
PerProcessOptions* const options,
OptionEnvvarSettings required_env_settings, StringVector* const errors) {
_ppop_instance.Parse(
args, exec_args, v8_args, options, required_env_settings, errors);
}
// XXX: If you add an option here, please also add it to doc/node.1 and
// doc/api/cli.md
// TODO(addaleax): Make that unnecessary.
DebugOptionsParser::DebugOptionsParser() {
#ifndef DISABLE_SINGLE_EXECUTABLE_APPLICATION
if (sea::IsSingleExecutable()) return;
#endif
AddOption("--inspect-port",
"set host:port for inspector",
&DebugOptions::host_port,
kAllowedInEnvvar);
AddAlias("--debug-port", "--inspect-port");
AddOption("--inspect",
"activate inspector on host:port (default: 127.0.0.1:9229)",
&DebugOptions::inspector_enabled,
kAllowedInEnvvar);
AddAlias("--inspect=", { "--inspect-port", "--inspect" });
AddOption("--debug", "", &DebugOptions::deprecated_debug);
AddAlias("--debug=", "--debug");
AddOption("--debug-brk", "", &DebugOptions::deprecated_debug);
AddAlias("--debug-brk=", "--debug-brk");
AddOption("--inspect-brk",
"activate inspector on host:port and break at start of user script",
&DebugOptions::break_first_line,
kAllowedInEnvvar);
Implies("--inspect-brk", "--inspect");
AddAlias("--inspect-brk=", { "--inspect-port", "--inspect-brk" });
AddOption("--inspect-brk-node", "", &DebugOptions::break_node_first_line);
Implies("--inspect-brk-node", "--inspect");
AddAlias("--inspect-brk-node=", { "--inspect-port", "--inspect-brk-node" });
AddOption("--inspect-publish-uid",
"comma separated list of destinations for inspector uid"
"(default: stderr,http)",
&DebugOptions::inspect_publish_uid_string,
kAllowedInEnvvar);
}
EnvironmentOptionsParser::EnvironmentOptionsParser() {
AddOption("--conditions",
"additional user conditions for conditional exports and imports",
&EnvironmentOptions::conditions,
kAllowedInEnvvar);
AddAlias("-C", "--conditions");
AddOption("--experimental-detect-module",
"when ambiguous modules fail to evaluate because they contain "
"ES module syntax, try again to evaluate them as ES modules",
&EnvironmentOptions::detect_module,
kAllowedInEnvvar);
AddOption("--diagnostic-dir",
"set dir for all output files"
" (default: current working directory)",
&EnvironmentOptions::diagnostic_dir,
kAllowedInEnvvar);
AddOption("--dns-result-order",
"set default value of verbatim in dns.lookup. Options are "
"'ipv4first' (IPv4 addresses are placed before IPv6 addresses) "
"'verbatim' (addresses are in the order the DNS resolver "
"returned)",
&EnvironmentOptions::dns_result_order,
kAllowedInEnvvar);
AddOption("--network-family-autoselection",
"Disable network address family autodetection algorithm",
&EnvironmentOptions::network_family_autoselection,
kAllowedInEnvvar,
true);
AddAlias("--enable-network-family-autoselection",
"--network-family-autoselection");
AddOption("--enable-source-maps",
"Source Map V3 support for stack traces",
&EnvironmentOptions::enable_source_maps,
kAllowedInEnvvar);
AddOption("--experimental-abortcontroller", "", NoOp{}, kAllowedInEnvvar);
AddOption("--experimental-fetch",
"experimental Fetch API",
&EnvironmentOptions::experimental_fetch,
kAllowedInEnvvar,
true);
AddOption("--experimental-websocket",
"experimental WebSocket API",
&EnvironmentOptions::experimental_websocket,
kAllowedInEnvvar,
true);
AddOption("--experimental-global-customevent",
"expose experimental CustomEvent on the global scope",
&EnvironmentOptions::experimental_global_customevent,
kAllowedInEnvvar,
true);
AddOption("--experimental-global-navigator",
"expose experimental Navigator API on the global scope",
&EnvironmentOptions::experimental_global_navigator,
kAllowedInEnvvar,
true);
AddOption("--experimental-global-webcrypto",
"expose experimental Web Crypto API on the global scope",
&EnvironmentOptions::experimental_global_web_crypto,
kAllowedInEnvvar,
true);
AddOption("--experimental-json-modules", "", NoOp{}, kAllowedInEnvvar);
AddOption("--experimental-loader",
"use the specified module as a custom loader",
&EnvironmentOptions::userland_loaders,
kAllowedInEnvvar);
AddAlias("--loader", "--experimental-loader");
AddOption("--experimental-modules", "", NoOp{}, kAllowedInEnvvar);
AddOption("--experimental-network-imports",
"experimental https: support for the ES Module loader",
&EnvironmentOptions::experimental_https_modules,
kAllowedInEnvvar);
AddOption("--experimental-wasm-modules",
"experimental ES Module support for webassembly modules",
&EnvironmentOptions::experimental_wasm_modules,
kAllowedInEnvvar);
AddOption("--experimental-import-meta-resolve",
"experimental ES Module import.meta.resolve() parentURL support",
&EnvironmentOptions::experimental_import_meta_resolve,
kAllowedInEnvvar);
AddOption("--experimental-permission",
"enable the permission system",
&EnvironmentOptions::experimental_permission,
kAllowedInEnvvar,
false);
AddOption("--experimental-policy",
"use the specified file as a "
"security policy",
&EnvironmentOptions::experimental_policy,
kAllowedInEnvvar);
AddOption("[has_policy_integrity_string]",
"",
&EnvironmentOptions::has_policy_integrity_string);
AddOption("--policy-integrity",
"ensure the security policy contents match "
"the specified integrity",
&EnvironmentOptions::experimental_policy_integrity,
kAllowedInEnvvar);
Implies("--policy-integrity", "[has_policy_integrity_string]");
AddOption("--allow-fs-read",
"allow permissions to read the filesystem",
&EnvironmentOptions::allow_fs_read,
kAllowedInEnvvar);
AddOption("--allow-fs-write",
"allow permissions to write in the filesystem",
&EnvironmentOptions::allow_fs_write,
kAllowedInEnvvar);
AddOption("--allow-addons",
"allow use of addons when any permissions are set",
&EnvironmentOptions::allow_addons,
kAllowedInEnvvar);
AddOption("--allow-child-process",
"allow use of child process when any permissions are set",
&EnvironmentOptions::allow_child_process,
kAllowedInEnvvar);
AddOption("--allow-worker",
"allow worker threads when any permissions are set",
&EnvironmentOptions::allow_worker_threads,
kAllowedInEnvvar);
AddOption("--experimental-repl-await",
"experimental await keyword support in REPL",
&EnvironmentOptions::experimental_repl_await,
kAllowedInEnvvar,
true);
AddOption("--experimental-vm-modules",
"experimental ES Module support in vm module",
&EnvironmentOptions::experimental_vm_modules,
kAllowedInEnvvar);
AddOption("--experimental-worker", "", NoOp{}, kAllowedInEnvvar);
AddOption("--experimental-report", "", NoOp{}, kAllowedInEnvvar);
AddOption(
"--experimental-wasi-unstable-preview1", "", NoOp{}, kAllowedInEnvvar);
AddOption("--expose-internals", "", &EnvironmentOptions::expose_internals);
AddOption("--frozen-intrinsics",
"experimental frozen intrinsics support",
&EnvironmentOptions::frozen_intrinsics,
kAllowedInEnvvar);
AddOption("--heapsnapshot-signal",
"Generate heap snapshot on specified signal",
&EnvironmentOptions::heap_snapshot_signal,
kAllowedInEnvvar);
AddOption("--heapsnapshot-near-heap-limit",
"Generate heap snapshots whenever V8 is approaching "
"the heap limit. No more than the specified number of "
"heap snapshots will be generated.",
&EnvironmentOptions::heap_snapshot_near_heap_limit,
kAllowedInEnvvar);
AddOption("--http-parser", "", NoOp{}, kAllowedInEnvvar);
AddOption("--insecure-http-parser",
"use an insecure HTTP parser that accepts invalid HTTP headers",
&EnvironmentOptions::insecure_http_parser,
kAllowedInEnvvar);
AddOption("--input-type",
"set module type for string input",
&EnvironmentOptions::input_type,
kAllowedInEnvvar);
AddOption(
"--experimental-specifier-resolution", "", NoOp{}, kAllowedInEnvvar);
AddAlias("--es-module-specifier-resolution",
"--experimental-specifier-resolution");
AddOption("--deprecation",
"silence deprecation warnings",
&EnvironmentOptions::deprecation,
kAllowedInEnvvar,
true);
AddOption("--force-async-hooks-checks",
"disable checks for async_hooks",
&EnvironmentOptions::force_async_hooks_checks,
kAllowedInEnvvar,
true);
AddOption(
"--force-node-api-uncaught-exceptions-policy",
"enforces 'uncaughtException' event on Node API asynchronous callbacks",
&EnvironmentOptions::force_node_api_uncaught_exceptions_policy,
kAllowedInEnvvar,
false);
AddOption("--addons",
"disable loading native addons",
&EnvironmentOptions::allow_native_addons,
kAllowedInEnvvar,
true);
AddOption("--global-search-paths",
"disable global module search paths",
&EnvironmentOptions::global_search_paths,
kAllowedInEnvvar,
true);
AddOption("--warnings",
"silence all process warnings",
&EnvironmentOptions::warnings,
kAllowedInEnvvar,
true);
AddOption("--disable-warning",
"silence specific process warnings",
&EnvironmentOptions::disable_warnings,
kAllowedInEnvvar);
AddOption("--force-context-aware",
"disable loading non-context-aware addons",
&EnvironmentOptions::force_context_aware,
kAllowedInEnvvar);
AddOption("--pending-deprecation",
"emit pending deprecation warnings",
&EnvironmentOptions::pending_deprecation,
kAllowedInEnvvar);
AddOption("--preserve-symlinks",
"preserve symbolic links when resolving",
&EnvironmentOptions::preserve_symlinks,
kAllowedInEnvvar);
AddOption("--preserve-symlinks-main",
"preserve symbolic links when resolving the main module",
&EnvironmentOptions::preserve_symlinks_main,
kAllowedInEnvvar);
AddOption("--prof",
"Generate V8 profiler output.",
V8Option{});
AddOption("--prof-process",
"process V8 profiler output generated using --prof",
&EnvironmentOptions::prof_process);
// Options after --prof-process are passed through to the prof processor.
AddAlias("--prof-process", { "--prof-process", "--" });
#if HAVE_INSPECTOR
AddOption("--cpu-prof",
"Start the V8 CPU profiler on start up, and write the CPU profile "
"to disk before exit. If --cpu-prof-dir is not specified, write "
"the profile to the current working directory.",
&EnvironmentOptions::cpu_prof);
AddOption("--cpu-prof-name",
"specified file name of the V8 CPU profile generated with "
"--cpu-prof",
&EnvironmentOptions::cpu_prof_name);
AddOption("--cpu-prof-interval",
"specified sampling interval in microseconds for the V8 CPU "
"profile generated with --cpu-prof. (default: 1000)",
&EnvironmentOptions::cpu_prof_interval);
AddOption("--cpu-prof-dir",
"Directory where the V8 profiles generated by --cpu-prof will be "
"placed. Does not affect --prof.",
&EnvironmentOptions::cpu_prof_dir);
AddOption(
"--heap-prof",
"Start the V8 heap profiler on start up, and write the heap profile "
"to disk before exit. If --heap-prof-dir is not specified, write "
"the profile to the current working directory.",
&EnvironmentOptions::heap_prof);
AddOption("--heap-prof-name",
"specified file name of the V8 heap profile generated with "
"--heap-prof",
&EnvironmentOptions::heap_prof_name);
AddOption("--heap-prof-dir",
"Directory where the V8 heap profiles generated by --heap-prof "
"will be placed.",
&EnvironmentOptions::heap_prof_dir);
AddOption("--heap-prof-interval",
"specified sampling interval in bytes for the V8 heap "
"profile generated with --heap-prof. (default: 512 * 1024)",
&EnvironmentOptions::heap_prof_interval);
#endif // HAVE_INSPECTOR
AddOption("--max-http-header-size",
"set the maximum size of HTTP headers (default: 16384 (16KB))",
&EnvironmentOptions::max_http_header_size,
kAllowedInEnvvar);
AddOption("--redirect-warnings",
"write warnings to file instead of stderr",
&EnvironmentOptions::redirect_warnings,
kAllowedInEnvvar);
AddOption(
"[has_env_file_string]", "", &EnvironmentOptions::has_env_file_string);
AddOption("--env-file",
"set environment variables from supplied file",
&EnvironmentOptions::env_file);
Implies("--env-file", "[has_env_file_string]");
AddOption("--test",
"launch test runner on startup",
&EnvironmentOptions::test_runner);
AddOption("--test-concurrency",
"specify test runner concurrency",
&EnvironmentOptions::test_runner_concurrency);
AddOption("--test-timeout",
"specify test runner timeout",
&EnvironmentOptions::test_runner_timeout);
AddOption("--experimental-test-coverage",
"enable code coverage in the test runner",
&EnvironmentOptions::test_runner_coverage);
AddOption("--test-name-pattern",
"run tests whose name matches this regular expression",
&EnvironmentOptions::test_name_pattern);
AddOption("--test-reporter",
"report test output using the given reporter",
&EnvironmentOptions::test_reporter,
kAllowedInEnvvar);
AddOption("--test-reporter-destination",
"report given reporter to the given destination",
&EnvironmentOptions::test_reporter_destination,
kAllowedInEnvvar);
AddOption("--test-only",
"run tests with 'only' option set",
&EnvironmentOptions::test_only,
kAllowedInEnvvar);
AddOption("--test-shard",
"run test at specific shard",
&EnvironmentOptions::test_shard,
kAllowedInEnvvar);
AddOption("--test-udp-no-try-send", "", // For testing only.
&EnvironmentOptions::test_udp_no_try_send);
AddOption("--throw-deprecation",
"throw an exception on deprecations",
&EnvironmentOptions::throw_deprecation,
kAllowedInEnvvar);
AddOption("--trace-atomics-wait",
"(deprecated) trace Atomics.wait() operations",
&EnvironmentOptions::trace_atomics_wait,
kAllowedInEnvvar);
AddOption("--trace-deprecation",
"show stack traces on deprecations",
&EnvironmentOptions::trace_deprecation,
kAllowedInEnvvar);
AddOption("--trace-exit",
"show stack trace when an environment exits",
&EnvironmentOptions::trace_exit,
kAllowedInEnvvar);
AddOption("--trace-sync-io",
"show stack trace when use of sync IO is detected after the "
"first tick",
&EnvironmentOptions::trace_sync_io,
kAllowedInEnvvar);
AddOption("--trace-tls",
"prints TLS packet trace information to stderr",
&EnvironmentOptions::trace_tls,
kAllowedInEnvvar);
AddOption("--trace-uncaught",
"show stack traces for the `throw` behind uncaught exceptions",
&EnvironmentOptions::trace_uncaught,
kAllowedInEnvvar);
AddOption("--trace-warnings",
"show stack traces on process warnings",
&EnvironmentOptions::trace_warnings,
kAllowedInEnvvar);
AddOption("--trace-promises",
"show stack traces on promise initialization and resolution",
&EnvironmentOptions::trace_promises,
kAllowedInEnvvar);
AddOption("--experimental-default-type",
"set module system to use by default",
&EnvironmentOptions::type,
kAllowedInEnvvar);
AddOption("--extra-info-on-fatal-exception",
"hide extra information on fatal exception that causes exit",
&EnvironmentOptions::extra_info_on_fatal_exception,
kAllowedInEnvvar,
true);
AddOption("--unhandled-rejections",
"define unhandled rejections behavior. Options are 'strict' "
"(always raise an error), 'throw' (raise an error unless "
"'unhandledRejection' hook is set), 'warn' (log a warning), 'none' "
"(silence warnings), 'warn-with-error-code' (log a warning and set "
"exit code 1 unless 'unhandledRejection' hook is set). (default: "
"throw)",
&EnvironmentOptions::unhandled_rejections,
kAllowedInEnvvar);
AddOption("--verify-base-objects",
"", /* undocumented, only for debugging */
&EnvironmentOptions::verify_base_objects,
kAllowedInEnvvar);
AddOption("--watch",
"run in watch mode",
&EnvironmentOptions::watch_mode,
kAllowedInEnvvar);
AddOption("--watch-path",
"path to watch",
&EnvironmentOptions::watch_mode_paths,
kAllowedInEnvvar);
AddOption("--watch-preserve-output",
"preserve outputs on watch mode restart",
&EnvironmentOptions::watch_mode_preserve_output,
kAllowedInEnvvar);
Implies("--watch-path", "--watch");
AddOption("--check",
"syntax check script without executing",
&EnvironmentOptions::syntax_check_only);
AddAlias("-c", "--check");
// This option is only so that we can tell --eval with an empty string from
// no eval at all. Having it not start with a dash makes it inaccessible
// from the parser itself, but available for using Implies().
// TODO(addaleax): When moving --help over to something generated from the
// programmatic descriptions, this will need some special care.
// (See also [ssl_openssl_cert_store] below.)
AddOption("[has_eval_string]", "", &EnvironmentOptions::has_eval_string);
AddOption("--eval", "evaluate script", &EnvironmentOptions::eval_string);
Implies("--eval", "[has_eval_string]");
AddOption("--print",
"evaluate script and print result",
&EnvironmentOptions::print_eval);
AddAlias("-e", "--eval");
AddAlias("--print <arg>", "-pe");
AddAlias("-pe", { "--print", "--eval" });
AddAlias("-p", "--print");
AddOption("--require",
"CommonJS module to preload (option can be repeated)",
&EnvironmentOptions::preload_cjs_modules,
kAllowedInEnvvar);
AddAlias("-r", "--require");
AddOption("--import",
"ES module to preload (option can be repeated)",
&EnvironmentOptions::preload_esm_modules,
kAllowedInEnvvar);
AddOption("--interactive",
"always enter the REPL even if stdin does not appear "
"to be a terminal",
&EnvironmentOptions::force_repl);
AddAlias("-i", "--interactive");
AddOption("--napi-modules", "", NoOp{}, kAllowedInEnvvar);
AddOption("--tls-keylog",
"log TLS decryption keys to named file for traffic analysis",
&EnvironmentOptions::tls_keylog,
kAllowedInEnvvar);
AddOption("--tls-min-v1.0",
"set default TLS minimum to TLSv1.0 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_0,
kAllowedInEnvvar);
AddOption("--tls-min-v1.1",
"set default TLS minimum to TLSv1.1 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_1,
kAllowedInEnvvar);
AddOption("--tls-min-v1.2",
"set default TLS minimum to TLSv1.2 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_2,
kAllowedInEnvvar);
AddOption("--tls-min-v1.3",
"set default TLS minimum to TLSv1.3 (default: TLSv1.2)",
&EnvironmentOptions::tls_min_v1_3,
kAllowedInEnvvar);
AddOption("--tls-max-v1.2",
"set default TLS maximum to TLSv1.2 (default: TLSv1.3)",
&EnvironmentOptions::tls_max_v1_2,
kAllowedInEnvvar);
// Current plan is:
// - 11.x and below: TLS1.3 is opt-in with --tls-max-v1.3
// - 12.x: TLS1.3 is opt-out with --tls-max-v1.2
// In either case, support both options they are uniformly available.
AddOption("--tls-max-v1.3",
"set default TLS maximum to TLSv1.3 (default: TLSv1.3)",
&EnvironmentOptions::tls_max_v1_3,
kAllowedInEnvvar);
}
PerIsolateOptionsParser::PerIsolateOptionsParser(
const EnvironmentOptionsParser& eop) {
AddOption("--track-heap-objects",
"track heap object allocations for heap snapshots",
&PerIsolateOptions::track_heap_objects,
kAllowedInEnvvar);
// Explicitly add some V8 flags to mark them as allowed in NODE_OPTIONS.
AddOption("--abort-on-uncaught-exception",
"aborting instead of exiting causes a core file to be generated "
"for analysis",
V8Option{},
kAllowedInEnvvar);
AddOption("--interpreted-frames-native-stack",
"help system profilers to translate JavaScript interpreted frames",
V8Option{},
kAllowedInEnvvar);
AddOption("--max-old-space-size", "", V8Option{}, kAllowedInEnvvar);
AddOption("--max-semi-space-size", "", V8Option{}, kAllowedInEnvvar);
AddOption("--perf-basic-prof", "", V8Option{}, kAllowedInEnvvar);
AddOption(
"--perf-basic-prof-only-functions", "", V8Option{}, kAllowedInEnvvar);
AddOption("--perf-prof", "", V8Option{}, kAllowedInEnvvar);
AddOption("--perf-prof-unwinding-info", "", V8Option{}, kAllowedInEnvvar);
AddOption("--stack-trace-limit", "", V8Option{}, kAllowedInEnvvar);
AddOption("--disallow-code-generation-from-strings",
"disallow eval and friends",
V8Option{},
kAllowedInEnvvar);
AddOption("--huge-max-old-generation-size",
"increase default maximum heap size on machines with 16GB memory "
"or more",
V8Option{},
kAllowedInEnvvar);
AddOption("--jitless",
"disable runtime allocation of executable memory",
V8Option{},
kAllowedInEnvvar);
AddOption("--report-uncaught-exception",
"generate diagnostic report on uncaught exceptions",
&PerIsolateOptions::report_uncaught_exception,
kAllowedInEnvvar);
AddOption("--report-on-signal",
"generate diagnostic report upon receiving signals",
&PerIsolateOptions::report_on_signal,
kAllowedInEnvvar);
AddOption("--report-signal",
"causes diagnostic report to be produced on provided signal,"
" unsupported in Windows. (default: SIGUSR2)",
&PerIsolateOptions::report_signal,
kAllowedInEnvvar);
Implies("--report-signal", "--report-on-signal");
AddOption("--enable-etw-stack-walking",
"provides heap data to ETW Windows native tracing",
V8Option{},
kAllowedInEnvvar);
AddOption("--experimental-top-level-await", "", NoOp{}, kAllowedInEnvvar);
AddOption("--experimental-shadow-realm",
"",
&PerIsolateOptions::experimental_shadow_realm,
kAllowedInEnvvar);
AddOption("--harmony-shadow-realm", "", V8Option{});
Implies("--experimental-shadow-realm", "--harmony-shadow-realm");
Implies("--harmony-shadow-realm", "--experimental-shadow-realm");
ImpliesNot("--no-harmony-shadow-realm", "--experimental-shadow-realm");
AddOption("--build-snapshot",
"Generate a snapshot blob when the process exits.",
&PerIsolateOptions::build_snapshot,
kDisallowedInEnvvar);
AddOption("--build-snapshot-config",
"Generate a snapshot blob when the process exits using a"
"JSON configuration in the specified path.",
&PerIsolateOptions::build_snapshot_config,
kDisallowedInEnvvar);
Implies("--build-snapshot-config", "--build-snapshot");
Insert(eop, &PerIsolateOptions::get_per_env_options);
}
PerProcessOptionsParser::PerProcessOptionsParser(
const PerIsolateOptionsParser& iop) {
AddOption("--title",
"the process title to use on startup",
&PerProcessOptions::title,
kAllowedInEnvvar);
AddOption("--trace-event-categories",
"comma separated list of trace event categories to record",
&PerProcessOptions::trace_event_categories,
kAllowedInEnvvar);
AddOption("--trace-event-file-pattern",
"Template string specifying the filepath for the trace-events "
"data, it supports ${rotation} and ${pid}.",
&PerProcessOptions::trace_event_file_pattern,
kAllowedInEnvvar);
AddAlias("--trace-events-enabled", {
"--trace-event-categories", "v8,node,node.async_hooks" });
AddOption("--v8-pool-size",
"set V8's thread pool size",
&PerProcessOptions::v8_thread_pool_size,
kAllowedInEnvvar);
AddOption("--zero-fill-buffers",
"automatically zero-fill all newly allocated Buffer and "
"SlowBuffer instances",
&PerProcessOptions::zero_fill_all_buffers,
kAllowedInEnvvar);
AddOption("--debug-arraybuffer-allocations",
"", /* undocumented, only for debugging */
&PerProcessOptions::debug_arraybuffer_allocations,
kAllowedInEnvvar);
AddOption("--disable-proto",
"disable Object.prototype.__proto__",
&PerProcessOptions::disable_proto,
kAllowedInEnvvar);
AddOption("--node-snapshot",
"", // It's a debug-only option.
&PerProcessOptions::node_snapshot,
kAllowedInEnvvar);
AddOption("--snapshot-blob",
"Path to the snapshot blob that's either the result of snapshot"
"building, or the blob that is used to restore the application "
"state",
&PerProcessOptions::snapshot_blob,
kAllowedInEnvvar);
// 12.x renamed this inadvertently, so alias it for consistency within the
// release line, while using the original name for consistency with older
// release lines.
AddOption("--security-revert", "", &PerProcessOptions::security_reverts);
AddAlias("--security-reverts", "--security-revert");
AddOption("--completion-bash",
"print source-able bash completion script",
&PerProcessOptions::print_bash_completion);
AddOption("--help",
"print node command line options",
&PerProcessOptions::print_help);
AddAlias("-h", "--help");
AddOption(
"--version", "print Node.js version", &PerProcessOptions::print_version);
AddAlias("-v", "--version");
AddOption("--v8-options",
"print V8 command line options",
&PerProcessOptions::print_v8_help);
AddOption("--report-compact",
"output compact single-line JSON",
&PerProcessOptions::report_compact,
kAllowedInEnvvar);
AddOption("--report-dir",
"define custom report pathname."
" (default: current working directory)",
&PerProcessOptions::report_directory,
kAllowedInEnvvar);
AddAlias("--report-directory", "--report-dir");
AddOption("--report-filename",
"define custom report file name."
" (default: YYYYMMDD.HHMMSS.PID.SEQUENCE#.txt)",
&PerProcessOptions::report_filename,
kAllowedInEnvvar);
AddOption("--report-on-fatalerror",
"generate diagnostic report on fatal (internal) errors",
&PerProcessOptions::report_on_fatalerror,
kAllowedInEnvvar);
#ifdef NODE_HAVE_I18N_SUPPORT
AddOption("--icu-data-dir",
"set ICU data load path to dir (overrides NODE_ICU_DATA)"
#ifndef NODE_HAVE_SMALL_ICU
" (note: linked-in ICU data is present)"
#endif
,
&PerProcessOptions::icu_data_dir,
kAllowedInEnvvar);
#endif
#if HAVE_OPENSSL
AddOption("--openssl-config",
"load OpenSSL configuration from the specified file "
"(overrides OPENSSL_CONF)",
&PerProcessOptions::openssl_config,
kAllowedInEnvvar);
AddOption("--tls-cipher-list",
"use an alternative default TLS cipher list",
&PerProcessOptions::tls_cipher_list,
kAllowedInEnvvar);
AddOption("--use-openssl-ca",
"use OpenSSL's default CA store"
#if defined(NODE_OPENSSL_CERT_STORE)
" (default)"
#endif
,
&PerProcessOptions::use_openssl_ca,
kAllowedInEnvvar);
AddOption("--use-bundled-ca",
"use bundled CA store"
#if !defined(NODE_OPENSSL_CERT_STORE)
" (default)"
#endif
,
&PerProcessOptions::use_bundled_ca,
kAllowedInEnvvar);
// Similar to [has_eval_string] above, except that the separation between
// this and use_openssl_ca only exists for option validation after parsing.
// This is not ideal.
AddOption("[ssl_openssl_cert_store]",
"",
&PerProcessOptions::ssl_openssl_cert_store);
Implies("--use-openssl-ca", "[ssl_openssl_cert_store]");
ImpliesNot("--use-bundled-ca", "[ssl_openssl_cert_store]");
AddOption("--enable-fips",
"enable FIPS crypto at startup",