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denoland-deno/cli/standalone/binary.rs

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use std::borrow::Cow;
use std::collections::BTreeMap;
use std::collections::HashMap;
use std::collections::VecDeque;
use std::env;
use std::env::current_exe;
use std::ffi::OsString;
use std::fs;
use std::fs::File;
use std::future::Future;
use std::io::ErrorKind;
use std::io::Read;
use std::io::Seek;
use std::io::SeekFrom;
use std::io::Write;
use std::ops::Range;
use std::path::Component;
use std::path::Path;
use std::path::PathBuf;
use std::process::Command;
use std::sync::Arc;
use deno_ast::MediaType;
use deno_ast::ModuleKind;
use deno_ast::ModuleSpecifier;
use deno_config::workspace::PackageJsonDepResolution;
use deno_config::workspace::ResolverWorkspaceJsrPackage;
use deno_config::workspace::Workspace;
use deno_config::workspace::WorkspaceResolver;
use deno_core::anyhow::bail;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
use deno_core::futures::io::AllowStdIo;
use deno_core::futures::AsyncReadExt;
use deno_core::futures::AsyncSeekExt;
use deno_core::serde_json;
use deno_core::url::Url;
use deno_graph::source::RealFileSystem;
use deno_graph::ModuleGraph;
use deno_npm::resolution::SerializedNpmResolutionSnapshot;
use deno_npm::resolution::SerializedNpmResolutionSnapshotPackage;
use deno_npm::resolution::ValidSerializedNpmResolutionSnapshot;
use deno_npm::NpmPackageId;
use deno_npm::NpmSystemInfo;
use deno_runtime::deno_fs;
use deno_runtime::deno_fs::FileSystem;
use deno_runtime::deno_fs::RealFs;
use deno_runtime::deno_io::fs::FsError;
use deno_runtime::deno_node::PackageJson;
use deno_semver::npm::NpmVersionReqParseError;
use deno_semver::package::PackageReq;
use deno_semver::Version;
use deno_semver::VersionReqSpecifierParseError;
use deno_telemetry::OtelConfig;
use indexmap::IndexMap;
use log::Level;
use serde::Deserialize;
use serde::Serialize;
use crate::args::CaData;
use crate::args::CliOptions;
use crate::args::CompileFlags;
use crate::args::NpmInstallDepsProvider;
use crate::args::PermissionFlags;
use crate::args::UnstableConfig;
use crate::cache::DenoDir;
use crate::cache::FastInsecureHasher;
use crate::emit::Emitter;
use crate::file_fetcher::FileFetcher;
use crate::http_util::HttpClientProvider;
use crate::npm::CliNpmResolver;
use crate::npm::InnerCliNpmResolverRef;
use crate::resolver::CjsTracker;
use crate::shared::ReleaseChannel;
use crate::standalone::virtual_fs::VfsEntry;
use crate::util::archive;
use crate::util::fs::canonicalize_path_maybe_not_exists;
use crate::util::progress_bar::ProgressBar;
use crate::util::progress_bar::ProgressBarStyle;
use super::file_system::DenoCompileFileSystem;
use super::serialization::deserialize_binary_data_section;
use super::serialization::serialize_binary_data_section;
use super::serialization::DenoCompileModuleData;
use super::serialization::DeserializedDataSection;
use super::serialization::RemoteModulesStore;
use super::serialization::RemoteModulesStoreBuilder;
use super::virtual_fs::FileBackedVfs;
use super::virtual_fs::VfsBuilder;
use super::virtual_fs::VfsFileSubDataKind;
use super::virtual_fs::VfsRoot;
use super::virtual_fs::VirtualDirectory;
/// A URL that can be designated as the base for relative URLs.
///
/// After creation, this URL may be used to get the key for a
/// module in the binary.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub struct StandaloneRelativeFileBaseUrl<'a>(&'a Url);
impl<'a> From<&'a Url> for StandaloneRelativeFileBaseUrl<'a> {
fn from(url: &'a Url) -> Self {
Self(url)
}
}
impl<'a> StandaloneRelativeFileBaseUrl<'a> {
pub fn new(url: &'a Url) -> Self {
debug_assert_eq!(url.scheme(), "file");
Self(url)
}
/// Gets the module map key of the provided specifier.
///
/// * Descendant file specifiers will be made relative to the base.
/// * Non-descendant file specifiers will stay as-is (absolute).
/// * Non-file specifiers will stay as-is.
pub fn specifier_key<'b>(&self, target: &'b Url) -> Cow<'b, str> {
if target.scheme() != "file" {
return Cow::Borrowed(target.as_str());
}
match self.0.make_relative(target) {
Some(relative) => {
if relative.starts_with("../") {
Cow::Borrowed(target.as_str())
} else {
Cow::Owned(relative)
}
}
None => Cow::Borrowed(target.as_str()),
}
}
pub fn inner(&self) -> &Url {
self.0
}
}
#[derive(Deserialize, Serialize)]
pub enum NodeModules {
Managed {
/// Relative path for the node_modules directory in the vfs.
node_modules_dir: Option<String>,
},
Byonm {
root_node_modules_dir: Option<String>,
},
}
#[derive(Deserialize, Serialize)]
pub struct SerializedWorkspaceResolverImportMap {
pub specifier: String,
pub json: String,
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct SerializedResolverWorkspaceJsrPackage {
pub relative_base: String,
pub name: String,
pub version: Option<Version>,
pub exports: IndexMap<String, String>,
}
#[derive(Deserialize, Serialize)]
pub struct SerializedWorkspaceResolver {
pub import_map: Option<SerializedWorkspaceResolverImportMap>,
pub jsr_pkgs: Vec<SerializedResolverWorkspaceJsrPackage>,
pub package_jsons: BTreeMap<String, serde_json::Value>,
pub pkg_json_resolution: PackageJsonDepResolution,
}
// Note: Don't use hashmaps/hashsets. Ensure the serialization
// is deterministic.
#[derive(Deserialize, Serialize)]
pub struct Metadata {
pub argv: Vec<String>,
pub seed: Option<u64>,
pub code_cache_key: Option<u64>,
pub permissions: PermissionFlags,
pub location: Option<Url>,
pub v8_flags: Vec<String>,
pub log_level: Option<Level>,
pub ca_stores: Option<Vec<String>>,
pub ca_data: Option<Vec<u8>>,
pub unsafely_ignore_certificate_errors: Option<Vec<String>>,
pub env_vars_from_env_file: IndexMap<String, String>,
pub workspace_resolver: SerializedWorkspaceResolver,
pub entrypoint_key: String,
pub node_modules: Option<NodeModules>,
pub unstable_config: UnstableConfig,
pub otel_config: Option<OtelConfig>, // None means disabled.
}
fn write_binary_bytes(
mut file_writer: File,
original_bin: Vec<u8>,
metadata: &Metadata,
npm_snapshot: Option<SerializedNpmResolutionSnapshot>,
remote_modules: &RemoteModulesStoreBuilder,
vfs: VfsBuilder,
compile_flags: &CompileFlags,
) -> Result<(), AnyError> {
let data_section_bytes =
serialize_binary_data_section(metadata, npm_snapshot, remote_modules, vfs)
.context("Serializing binary data section.")?;
let target = compile_flags.resolve_target();
if target.contains("linux") {
libsui::Elf::new(&original_bin).append(
"d3n0l4nd",
&data_section_bytes,
&mut file_writer,
)?;
} else if target.contains("windows") {
let mut pe = libsui::PortableExecutable::from(&original_bin)?;
if let Some(icon) = compile_flags.icon.as_ref() {
let icon = std::fs::read(icon)?;
pe = pe.set_icon(&icon)?;
}
pe.write_resource("d3n0l4nd", data_section_bytes)?
.build(&mut file_writer)?;
} else if target.contains("darwin") {
libsui::Macho::from(original_bin)?
.write_section("d3n0l4nd", data_section_bytes)?
.build_and_sign(&mut file_writer)?;
}
Ok(())
}
pub fn is_standalone_binary(exe_path: &Path) -> bool {
let Ok(data) = std::fs::read(exe_path) else {
return false;
};
libsui::utils::is_elf(&data)
|| libsui::utils::is_pe(&data)
|| libsui::utils::is_macho(&data)
}
pub struct StandaloneData {
pub fs: Arc<dyn deno_fs::FileSystem>,
pub metadata: Metadata,
pub modules: StandaloneModules,
pub npm_snapshot: Option<ValidSerializedNpmResolutionSnapshot>,
pub root_path: PathBuf,
pub vfs: Arc<FileBackedVfs>,
}
pub struct StandaloneModules {
remote_modules: RemoteModulesStore,
vfs: Arc<FileBackedVfs>,
}
impl StandaloneModules {
pub fn resolve_specifier<'a>(
&'a self,
specifier: &'a ModuleSpecifier,
) -> Result<Option<&'a ModuleSpecifier>, AnyError> {
if specifier.scheme() == "file" {
Ok(Some(specifier))
} else {
self.remote_modules.resolve_specifier(specifier)
}
}
pub fn has_file(&self, path: &Path) -> bool {
self.vfs.file_entry(path).is_ok()
}
pub fn read<'a>(
&'a self,
specifier: &'a ModuleSpecifier,
) -> Result<Option<DenoCompileModuleData<'a>>, AnyError> {
if specifier.scheme() == "file" {
let path = deno_path_util::url_to_file_path(specifier)?;
let bytes = match self.vfs.file_entry(&path) {
Ok(entry) => self
.vfs
.read_file_all(entry, VfsFileSubDataKind::ModuleGraph)?,
Err(err) if err.kind() == ErrorKind::NotFound => {
match RealFs.read_file_sync(&path, None) {
Ok(bytes) => bytes,
Err(FsError::Io(err)) if err.kind() == ErrorKind::NotFound => {
return Ok(None)
}
Err(err) => return Err(err.into()),
}
}
Err(err) => return Err(err.into()),
};
Ok(Some(DenoCompileModuleData {
media_type: MediaType::from_specifier(specifier),
specifier,
data: bytes,
}))
} else {
self.remote_modules.read(specifier)
}
}
}
/// This function will try to run this binary as a standalone binary
/// produced by `deno compile`. It determines if this is a standalone
/// binary by skipping over the trailer width at the end of the file,
/// then checking for the magic trailer string `d3n0l4nd`. If found,
/// the bundle is executed. If not, this function exits with `Ok(None)`.
pub fn extract_standalone(
cli_args: Cow<Vec<OsString>>,
) -> Result<Option<StandaloneData>, AnyError> {
let Some(data) = libsui::find_section("d3n0l4nd") else {
return Ok(None);
};
let DeserializedDataSection {
mut metadata,
npm_snapshot,
remote_modules,
mut vfs_dir,
vfs_files_data,
} = match deserialize_binary_data_section(data)? {
Some(data_section) => data_section,
None => return Ok(None),
};
let root_path = {
let maybe_current_exe = std::env::current_exe().ok();
let current_exe_name = maybe_current_exe
.as_ref()
.and_then(|p| p.file_name())
.map(|p| p.to_string_lossy())
// should never happen
.unwrap_or_else(|| Cow::Borrowed("binary"));
std::env::temp_dir().join(format!("deno-compile-{}", current_exe_name))
};
let cli_args = cli_args.into_owned();
metadata.argv.reserve(cli_args.len() - 1);
for arg in cli_args.into_iter().skip(1) {
metadata.argv.push(arg.into_string().unwrap());
}
let vfs = {
// align the name of the directory with the root dir
vfs_dir.name = root_path.file_name().unwrap().to_string_lossy().to_string();
let fs_root = VfsRoot {
dir: vfs_dir,
root_path: root_path.clone(),
start_file_offset: 0,
};
Arc::new(FileBackedVfs::new(Cow::Borrowed(vfs_files_data), fs_root))
};
let fs: Arc<dyn deno_fs::FileSystem> =
Arc::new(DenoCompileFileSystem::new(vfs.clone()));
Ok(Some(StandaloneData {
fs,
metadata,
modules: StandaloneModules {
remote_modules,
vfs: vfs.clone(),
},
npm_snapshot,
root_path,
vfs,
}))
}
pub struct DenoCompileBinaryWriter<'a> {
cjs_tracker: &'a CjsTracker,
cli_options: &'a CliOptions,
deno_dir: &'a DenoDir,
emitter: &'a Emitter,
file_fetcher: &'a FileFetcher,
http_client_provider: &'a HttpClientProvider,
npm_resolver: &'a dyn CliNpmResolver,
workspace_resolver: &'a WorkspaceResolver,
npm_system_info: NpmSystemInfo,
}
impl<'a> DenoCompileBinaryWriter<'a> {
#[allow(clippy::too_many_arguments)]
pub fn new(
cjs_tracker: &'a CjsTracker,
cli_options: &'a CliOptions,
deno_dir: &'a DenoDir,
emitter: &'a Emitter,
file_fetcher: &'a FileFetcher,
http_client_provider: &'a HttpClientProvider,
npm_resolver: &'a dyn CliNpmResolver,
workspace_resolver: &'a WorkspaceResolver,
npm_system_info: NpmSystemInfo,
) -> Self {
Self {
cjs_tracker,
cli_options,
deno_dir,
emitter,
file_fetcher,
http_client_provider,
npm_resolver,
workspace_resolver,
npm_system_info,
}
}
pub async fn write_bin(
&self,
writer: File,
graph: &ModuleGraph,
root_dir_url: StandaloneRelativeFileBaseUrl<'_>,
entrypoint: &ModuleSpecifier,
include_files: &[ModuleSpecifier],
compile_flags: &CompileFlags,
) -> Result<(), AnyError> {
// Select base binary based on target
let mut original_binary = self.get_base_binary(compile_flags).await?;
if compile_flags.no_terminal {
let target = compile_flags.resolve_target();
if !target.contains("windows") {
bail!(
"The `--no-terminal` flag is only available when targeting Windows (current: {})",
target,
)
}
set_windows_binary_to_gui(&mut original_binary)
.context("Setting windows binary to GUI.")?;
}
if compile_flags.icon.is_some() {
let target = compile_flags.resolve_target();
if !target.contains("windows") {
bail!(
"The `--icon` flag is only available when targeting Windows (current: {})",
target,
)
}
}
self
.write_standalone_binary(
writer,
original_binary,
graph,
root_dir_url,
entrypoint,
include_files,
compile_flags,
)
.await
}
async fn get_base_binary(
&self,
compile_flags: &CompileFlags,
) -> Result<Vec<u8>, AnyError> {
// Used for testing.
//
// Phase 2 of the 'min sized' deno compile RFC talks
// about adding this as a flag.
if let Some(path) = get_dev_binary_path() {
return std::fs::read(&path).with_context(|| {
format!("Could not find denort at '{}'", path.to_string_lossy())
});
}
let target = compile_flags.resolve_target();
let binary_name = format!("denort-{target}.zip");
let binary_path_suffix =
match crate::version::DENO_VERSION_INFO.release_channel {
ReleaseChannel::Canary => {
format!(
"canary/{}/{}",
crate::version::DENO_VERSION_INFO.git_hash,
binary_name
)
}
_ => {
format!("release/v{}/{}", env!("CARGO_PKG_VERSION"), binary_name)
}
};
let download_directory = self.deno_dir.dl_folder_path();
let binary_path = download_directory.join(&binary_path_suffix);
if !binary_path.exists() {
self
.download_base_binary(&download_directory, &binary_path_suffix)
.await
.context("Setting up base binary.")?;
}
let read_file = |path: &Path| -> Result<Vec<u8>, AnyError> {
std::fs::read(path).with_context(|| format!("Reading {}", path.display()))
};
let archive_data = read_file(&binary_path)?;
let temp_dir = tempfile::TempDir::new()?;
let base_binary_path = archive::unpack_into_dir(archive::UnpackArgs {
exe_name: "denort",
archive_name: &binary_name,
archive_data: &archive_data,
is_windows: target.contains("windows"),
dest_path: temp_dir.path(),
})?;
let base_binary = read_file(&base_binary_path)?;
drop(temp_dir); // delete the temp dir
Ok(base_binary)
}
async fn download_base_binary(
&self,
output_directory: &Path,
binary_path_suffix: &str,
) -> Result<(), AnyError> {
let download_url = format!("https://dl.deno.land/{binary_path_suffix}");
let maybe_bytes = {
let progress_bars = ProgressBar::new(ProgressBarStyle::DownloadBars);
let progress = progress_bars.update(&download_url);
self
.http_client_provider
.get_or_create()?
.download_with_progress_and_retries(
download_url.parse()?,
None,
&progress,
)
.await?
};
let bytes = match maybe_bytes {
Some(bytes) => bytes,
None => {
bail!("Download could not be found, aborting");
}
};
let create_dir_all = |dir: &Path| {
std::fs::create_dir_all(dir)
.with_context(|| format!("Creating {}", dir.display()))
};
create_dir_all(output_directory)?;
let output_path = output_directory.join(binary_path_suffix);
create_dir_all(output_path.parent().unwrap())?;
std::fs::write(&output_path, bytes)
.with_context(|| format!("Writing {}", output_path.display()))?;
Ok(())
}
/// This functions creates a standalone deno binary by appending a bundle
/// and magic trailer to the currently executing binary.
#[allow(clippy::too_many_arguments)]
async fn write_standalone_binary(
&self,
writer: File,
original_bin: Vec<u8>,
graph: &ModuleGraph,
root_dir_url: StandaloneRelativeFileBaseUrl<'_>,
entrypoint: &ModuleSpecifier,
include_files: &[ModuleSpecifier],
compile_flags: &CompileFlags,
) -> Result<(), AnyError> {
let ca_data = match self.cli_options.ca_data() {
Some(CaData::File(ca_file)) => Some(
std::fs::read(ca_file).with_context(|| format!("Reading {ca_file}"))?,
),
Some(CaData::Bytes(bytes)) => Some(bytes.clone()),
None => None,
};
let root_path = root_dir_url.inner().to_file_path().unwrap();
let (maybe_npm_vfs, node_modules, npm_snapshot) =
match self.npm_resolver.as_inner() {
InnerCliNpmResolverRef::Managed(managed) => {
let snapshot =
managed.serialized_valid_snapshot_for_system(&self.npm_system_info);
if !snapshot.as_serialized().packages.is_empty() {
let npm_vfs_builder = self
.build_npm_vfs(&root_path)
.context("Building npm vfs.")?;
(
Some(npm_vfs_builder),
Some(NodeModules::Managed {
node_modules_dir: self
.npm_resolver
.root_node_modules_path()
.map(|path| {
root_dir_url
.specifier_key(
&ModuleSpecifier::from_directory_path(path).unwrap(),
)
.into_owned()
}),
}),
Some(snapshot),
)
} else {
(None, None, None)
}
}
InnerCliNpmResolverRef::Byonm(resolver) => {
let npm_vfs_builder = self.build_npm_vfs(&root_path)?;
(
Some(npm_vfs_builder),
Some(NodeModules::Byonm {
root_node_modules_dir: resolver.root_node_modules_path().map(
|node_modules_dir| {
root_dir_url
.specifier_key(
&ModuleSpecifier::from_directory_path(node_modules_dir)
.unwrap(),
)
.into_owned()
},
),
}),
None,
)
}
};
let mut vfs = if let Some(npm_vfs) = maybe_npm_vfs {
npm_vfs
} else {
VfsBuilder::new(root_path.clone())?
};
for include_file in include_files {
let path = deno_path_util::url_to_file_path(include_file)?;
if path.is_dir() {
// TODO(#26941): we should analyze if any of these are
// modules in order to include their dependencies
vfs
.add_dir_recursive(&path)
.with_context(|| format!("Including {}", path.display()))?;
} else {
vfs
.add_file_at_path(&path)
.with_context(|| format!("Including {}", path.display()))?;
}
}
let mut remote_modules_store = RemoteModulesStoreBuilder::default();
let mut code_cache_key_hasher = if self.cli_options.code_cache_enabled() {
Some(FastInsecureHasher::new_deno_versioned())
} else {
None
};
for module in graph.modules() {
if module.specifier().scheme() == "data" {
continue; // don't store data urls as an entry as they're in the code
}
if let Some(hasher) = &mut code_cache_key_hasher {
if let Some(source) = module.source() {
hasher.write(module.specifier().as_str().as_bytes());
hasher.write(source.as_bytes());
}
}
let (maybe_source, media_type) = match module {
deno_graph::Module::Js(m) => {
let source = if m.media_type.is_emittable() {
let is_cjs = self.cjs_tracker.is_cjs_with_known_is_script(
&m.specifier,
m.media_type,
m.is_script,
)?;
let module_kind = ModuleKind::from_is_cjs(is_cjs);
let source = self
.emitter
.emit_parsed_source(
&m.specifier,
m.media_type,
module_kind,
&m.source,
)
.await?;
source.into_bytes()
} else {
m.source.as_bytes().to_vec()
};
(Some(source), m.media_type)
}
deno_graph::Module::Json(m) => {
(Some(m.source.as_bytes().to_vec()), m.media_type)
}
deno_graph::Module::Wasm(m) => {
(Some(m.source.to_vec()), MediaType::Wasm)
}
deno_graph::Module::Npm(_)
| deno_graph::Module::Node(_)
| deno_graph::Module::External(_) => (None, MediaType::Unknown),
};
if module.specifier().scheme() == "file" {
let file_path = deno_path_util::url_to_file_path(module.specifier())?;
vfs
.add_file_with_data(
&file_path,
match maybe_source {
Some(source) => source,
None => RealFs.read_file_sync(&file_path, None)?.into_owned(),
},
VfsFileSubDataKind::ModuleGraph,
)
.with_context(|| {
format!("Failed adding '{}'", file_path.display())
})?;
} else if let Some(source) = maybe_source {
remote_modules_store.add(module.specifier(), media_type, source);
}
}
remote_modules_store.add_redirects(&graph.redirects);
let env_vars_from_env_file = match self.cli_options.env_file_name() {
Some(env_filenames) => {
let mut aggregated_env_vars = IndexMap::new();
for env_filename in env_filenames.iter().rev() {
log::info!("{} Environment variables from the file \"{}\" were embedded in the generated executable file", crate::colors::yellow("Warning"), env_filename);
let env_vars = get_file_env_vars(env_filename.to_string())?;
aggregated_env_vars.extend(env_vars);
}
aggregated_env_vars
}
None => Default::default(),
};
let metadata = Metadata {
argv: compile_flags.args.clone(),
seed: self.cli_options.seed(),
code_cache_key: code_cache_key_hasher.map(|h| h.finish()),
location: self.cli_options.location_flag().clone(),
permissions: self.cli_options.permission_flags().clone(),
v8_flags: self.cli_options.v8_flags().clone(),
unsafely_ignore_certificate_errors: self
.cli_options
.unsafely_ignore_certificate_errors()
.clone(),
log_level: self.cli_options.log_level(),
ca_stores: self.cli_options.ca_stores().clone(),
ca_data,
env_vars_from_env_file,
entrypoint_key: root_dir_url.specifier_key(entrypoint).into_owned(),
workspace_resolver: SerializedWorkspaceResolver {
import_map: self.workspace_resolver.maybe_import_map().map(|i| {
SerializedWorkspaceResolverImportMap {
specifier: if i.base_url().scheme() == "file" {
root_dir_url.specifier_key(i.base_url()).into_owned()
} else {
// just make a remote url local
"deno.json".to_string()
},
json: i.to_json(),
}
}),
jsr_pkgs: self
.workspace_resolver
.jsr_packages()
.map(|pkg| SerializedResolverWorkspaceJsrPackage {
relative_base: root_dir_url.specifier_key(&pkg.base).into_owned(),
name: pkg.name.clone(),
version: pkg.version.clone(),
exports: pkg.exports.clone(),
})
.collect(),
package_jsons: self
.workspace_resolver
.package_jsons()
.map(|pkg_json| {
(
root_dir_url
.specifier_key(&pkg_json.specifier())
.into_owned(),
serde_json::to_value(pkg_json).unwrap(),
)
})
.collect(),
pkg_json_resolution: self.workspace_resolver.pkg_json_dep_resolution(),
},
node_modules,
unstable_config: UnstableConfig {
legacy_flag_enabled: false,
bare_node_builtins: self.cli_options.unstable_bare_node_builtins(),
detect_cjs: self.cli_options.unstable_detect_cjs(),
sloppy_imports: self.cli_options.unstable_sloppy_imports(),
features: self.cli_options.unstable_features(),
},
otel_config: self.cli_options.otel_config(),
};
write_binary_bytes(
writer,
original_bin,
&metadata,
npm_snapshot.map(|s| s.into_serialized()),
&remote_modules_store,
vfs,
compile_flags,
)
.context("Writing binary bytes")
}
fn build_npm_vfs(&self, root_path: &Path) -> Result<VfsBuilder, AnyError> {
fn maybe_warn_different_system(system_info: &NpmSystemInfo) {
if system_info != &NpmSystemInfo::default() {
log::warn!("{} The node_modules directory may be incompatible with the target system.", crate::colors::yellow("Warning"));
}
}
match self.npm_resolver.as_inner() {
InnerCliNpmResolverRef::Managed(npm_resolver) => {
if let Some(node_modules_path) = npm_resolver.root_node_modules_path() {
maybe_warn_different_system(&self.npm_system_info);
let mut builder = VfsBuilder::new(root_path.to_path_buf())?;
builder.add_dir_recursive(node_modules_path)?;
Ok(builder)
} else {
// DO NOT include the user's registry url as it may contain credentials,
// but also don't make this dependent on the registry url
let global_cache_root_path = npm_resolver.global_cache_root_path();
let mut builder =
VfsBuilder::new(global_cache_root_path.to_path_buf())?;
let mut packages =
npm_resolver.all_system_packages(&self.npm_system_info);
packages.sort_by(|a, b| a.id.cmp(&b.id)); // determinism
for package in packages {
let folder =
npm_resolver.resolve_pkg_folder_from_pkg_id(&package.id)?;
builder.add_dir_recursive(&folder)?;
}
// Flatten all the registries folders into a single ".deno_compile_node_modules/localhost" folder
// that will be used by denort when loading the npm cache. This avoids us exposing
// the user's private registry information and means we don't have to bother
// serializing all the different registry config into the binary.
builder.with_root_dir(|root_dir| {
root_dir.name = ".deno_compile_node_modules".to_string();
let mut new_entries = Vec::with_capacity(root_dir.entries.len());
let mut localhost_entries = IndexMap::new();
for entry in std::mem::take(&mut root_dir.entries) {
match entry {
VfsEntry::Dir(dir) => {
for entry in dir.entries {
log::debug!(
"Flattening {} into node_modules",
entry.name()
);
if let Some(existing) =
localhost_entries.insert(entry.name().to_string(), entry)
{
panic!(
"Unhandled scenario where a duplicate entry was found: {:?}",
existing
);
}
}
}
VfsEntry::File(_) | VfsEntry::Symlink(_) => {
new_entries.push(entry);
}
}
}
new_entries.push(VfsEntry::Dir(VirtualDirectory {
name: "localhost".to_string(),
entries: localhost_entries.into_iter().map(|(_, v)| v).collect(),
}));
// needs to be sorted by name
new_entries.sort_by(|a, b| a.name().cmp(b.name()));
root_dir.entries = new_entries;
});
builder.set_new_root_path(root_path.to_path_buf())?;
Ok(builder)
}
}
InnerCliNpmResolverRef::Byonm(_) => {
maybe_warn_different_system(&self.npm_system_info);
let mut builder = VfsBuilder::new(root_path.to_path_buf())?;
for pkg_json in self.cli_options.workspace().package_jsons() {
builder.add_file_at_path(&pkg_json.path)?;
}
// traverse and add all the node_modules directories in the workspace
let mut pending_dirs = VecDeque::new();
pending_dirs.push_back(
self
.cli_options
.workspace()
.root_dir()
.to_file_path()
.unwrap(),
);
while let Some(pending_dir) = pending_dirs.pop_front() {
let mut entries = fs::read_dir(&pending_dir)
.with_context(|| {
format!("Failed reading: {}", pending_dir.display())
})?
.collect::<Result<Vec<_>, _>>()?;
entries.sort_by_cached_key(|entry| entry.file_name()); // determinism
for entry in entries {
let path = entry.path();
if !path.is_dir() {
continue;
}
if path.ends_with("node_modules") {
builder.add_dir_recursive(&path)?;
} else {
pending_dirs.push_back(path);
}
}
}
Ok(builder)
}
}
}
}
fn get_denort_path(deno_exe: PathBuf) -> Option<OsString> {
let mut denort = deno_exe;
denort.set_file_name(if cfg!(windows) {
"denort.exe"
} else {
"denort"
});
denort.exists().then(|| denort.into_os_string())
}
fn get_dev_binary_path() -> Option<OsString> {
env::var_os("DENORT_BIN").or_else(|| {
env::current_exe().ok().and_then(|exec_path| {
if exec_path
.components()
.any(|component| component == Component::Normal("target".as_ref()))
{
get_denort_path(exec_path)
} else {
None
}
})
})
}
/// This function returns the environment variables specified
/// in the passed environment file.
fn get_file_env_vars(
filename: String,
) -> Result<IndexMap<String, String>, dotenvy::Error> {
let mut file_env_vars = IndexMap::new();
for item in dotenvy::from_filename_iter(filename)? {
let Ok((key, val)) = item else {
continue; // this failure will be warned about on load
};
file_env_vars.insert(key, val);
}
Ok(file_env_vars)
}
/// This function sets the subsystem field in the PE header to 2 (GUI subsystem)
/// For more information about the PE header: https://learn.microsoft.com/en-us/windows/win32/debug/pe-format
fn set_windows_binary_to_gui(bin: &mut [u8]) -> Result<(), AnyError> {
// Get the PE header offset located in an i32 found at offset 60
// See: https://learn.microsoft.com/en-us/windows/win32/debug/pe-format#ms-dos-stub-image-only
let start_pe = u32::from_le_bytes((bin[60..64]).try_into()?);
// Get image type (PE32 or PE32+) indicates whether the binary is 32 or 64 bit
// The used offset and size values can be found here:
// https://learn.microsoft.com/en-us/windows/win32/debug/pe-format#optional-header-image-only
let start_32 = start_pe as usize + 28;
let magic_32 =
u16::from_le_bytes(bin[(start_32)..(start_32 + 2)].try_into()?);
let start_64 = start_pe as usize + 24;
let magic_64 =
u16::from_le_bytes(bin[(start_64)..(start_64 + 2)].try_into()?);
// Take the standard fields size for the current architecture (32 or 64 bit)
// This is the ofset for the Windows-Specific fields
let standard_fields_size = if magic_32 == 0x10b {
28
} else if magic_64 == 0x20b {
24
} else {
bail!("Could not find a matching magic field in the PE header")
};
// Set the subsystem field (offset 68) to 2 (GUI subsystem)
// For all possible options, see: https://learn.microsoft.com/en-us/windows/win32/debug/pe-format#optional-header-windows-specific-fields-image-only
let subsystem_offset = 68;
let subsystem_start =
start_pe as usize + standard_fields_size + subsystem_offset;
let subsystem: u16 = 2;
bin[(subsystem_start)..(subsystem_start + 2)]
.copy_from_slice(&subsystem.to_le_bytes());
Ok(())
}
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