mirror of
https://github.com/denoland/deno.git
synced 2024-12-27 09:39:08 -05:00
416 lines
12 KiB
Rust
416 lines
12 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use crate::args::CaData;
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use crate::args::CompileFlags;
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use crate::args::Flags;
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use crate::cache::DenoDir;
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use crate::graph_util::create_graph_and_maybe_check;
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use crate::graph_util::error_for_any_npm_specifier;
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use crate::http_util::HttpClient;
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use crate::standalone::Metadata;
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use crate::standalone::MAGIC_TRAILER;
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use crate::util::path::path_has_trailing_slash;
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use crate::util::progress_bar::ProgressBar;
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use crate::util::progress_bar::ProgressBarStyle;
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use crate::ProcState;
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use deno_core::anyhow::bail;
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use deno_core::anyhow::Context;
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use deno_core::error::generic_error;
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use deno_core::error::AnyError;
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use deno_core::resolve_url_or_path;
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use deno_core::serde_json;
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use deno_graph::ModuleSpecifier;
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use deno_runtime::colors;
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use std::env;
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use std::fs;
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use std::fs::File;
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use std::io::Read;
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use std::io::Seek;
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use std::io::SeekFrom;
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use std::io::Write;
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use std::path::Path;
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use std::path::PathBuf;
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use std::sync::Arc;
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use super::installer::infer_name_from_url;
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pub async fn compile(
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flags: Flags,
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compile_flags: CompileFlags,
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) -> Result<(), AnyError> {
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let ps = ProcState::build(flags).await?;
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let module_specifier = ps.options.resolve_main_module()?;
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let module_roots = {
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let mut vec = Vec::with_capacity(compile_flags.include.len() + 1);
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vec.push(module_specifier.clone());
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for side_module in &compile_flags.include {
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vec.push(resolve_url_or_path(side_module, ps.options.initial_cwd())?);
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}
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vec
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};
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let deno_dir = &ps.dir;
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let output_path = resolve_compile_executable_output_path(
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&compile_flags,
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ps.options.initial_cwd(),
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)
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.await?;
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let graph =
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Arc::try_unwrap(create_graph_and_maybe_check(module_roots, &ps).await?)
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.unwrap();
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// at the moment, we don't support npm specifiers in deno_compile, so show an error
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error_for_any_npm_specifier(&graph)?;
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let parser = ps.parsed_source_cache.as_capturing_parser();
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let eszip = eszip::EszipV2::from_graph(graph, &parser, Default::default())?;
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log::info!(
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"{} {}",
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colors::green("Compile"),
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module_specifier.to_string()
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);
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// Select base binary based on target
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let original_binary =
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get_base_binary(&ps.http_client, deno_dir, compile_flags.target.clone())
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.await?;
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let final_bin = create_standalone_binary(
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original_binary,
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eszip,
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module_specifier,
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&compile_flags,
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ps,
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)
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.await?;
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log::info!("{} {}", colors::green("Emit"), output_path.display());
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write_standalone_binary(output_path, final_bin).await?;
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Ok(())
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}
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async fn get_base_binary(
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client: &HttpClient,
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deno_dir: &DenoDir,
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target: Option<String>,
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) -> Result<Vec<u8>, AnyError> {
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if target.is_none() {
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let path = std::env::current_exe()?;
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return Ok(tokio::fs::read(path).await?);
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}
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let target = target.unwrap_or_else(|| env!("TARGET").to_string());
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let binary_name = format!("deno-{target}.zip");
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let binary_path_suffix = if crate::version::is_canary() {
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format!("canary/{}/{}", crate::version::GIT_COMMIT_HASH, binary_name)
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} else {
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format!("release/v{}/{}", env!("CARGO_PKG_VERSION"), binary_name)
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};
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let download_directory = deno_dir.dl_folder_path();
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let binary_path = download_directory.join(&binary_path_suffix);
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if !binary_path.exists() {
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download_base_binary(client, &download_directory, &binary_path_suffix)
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.await?;
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}
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let archive_data = tokio::fs::read(binary_path).await?;
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let temp_dir = tempfile::TempDir::new()?;
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let base_binary_path = crate::tools::upgrade::unpack_into_dir(
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archive_data,
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target.contains("windows"),
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&temp_dir,
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)?;
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let base_binary = tokio::fs::read(base_binary_path).await?;
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drop(temp_dir); // delete the temp dir
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Ok(base_binary)
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}
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async fn download_base_binary(
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client: &HttpClient,
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output_directory: &Path,
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binary_path_suffix: &str,
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) -> Result<(), AnyError> {
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let download_url = format!("https://dl.deno.land/{binary_path_suffix}");
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let maybe_bytes = {
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let progress_bars = ProgressBar::new(ProgressBarStyle::DownloadBars);
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let progress = progress_bars.update(&download_url);
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client
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.download_with_progress(download_url, &progress)
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.await?
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};
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let bytes = match maybe_bytes {
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Some(bytes) => bytes,
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None => {
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log::info!("Download could not be found, aborting");
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std::process::exit(1)
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}
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};
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std::fs::create_dir_all(output_directory)?;
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let output_path = output_directory.join(binary_path_suffix);
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std::fs::create_dir_all(output_path.parent().unwrap())?;
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tokio::fs::write(output_path, bytes).await?;
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Ok(())
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}
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/// This functions creates a standalone deno binary by appending a bundle
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/// and magic trailer to the currently executing binary.
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async fn create_standalone_binary(
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mut original_bin: Vec<u8>,
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eszip: eszip::EszipV2,
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entrypoint: ModuleSpecifier,
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compile_flags: &CompileFlags,
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ps: ProcState,
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) -> Result<Vec<u8>, AnyError> {
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let mut eszip_archive = eszip.into_bytes();
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let ca_data = match ps.options.ca_data() {
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Some(CaData::File(ca_file)) => {
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Some(fs::read(ca_file).with_context(|| format!("Reading: {ca_file}"))?)
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}
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Some(CaData::Bytes(bytes)) => Some(bytes.clone()),
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None => None,
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};
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let maybe_import_map = ps
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.options
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.resolve_import_map(&ps.file_fetcher)
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.await?
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.map(|import_map| (import_map.base_url().clone(), import_map.to_json()));
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let metadata = Metadata {
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argv: compile_flags.args.clone(),
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unstable: ps.options.unstable(),
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seed: ps.options.seed(),
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location: ps.options.location_flag().clone(),
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permissions: ps.options.permissions_options(),
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v8_flags: ps.options.v8_flags().clone(),
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unsafely_ignore_certificate_errors: ps
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.options
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.unsafely_ignore_certificate_errors()
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.clone(),
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log_level: ps.options.log_level(),
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ca_stores: ps.options.ca_stores().clone(),
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ca_data,
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entrypoint,
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maybe_import_map,
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};
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let mut metadata = serde_json::to_string(&metadata)?.as_bytes().to_vec();
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let eszip_pos = original_bin.len();
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let metadata_pos = eszip_pos + eszip_archive.len();
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let mut trailer = MAGIC_TRAILER.to_vec();
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trailer.write_all(&eszip_pos.to_be_bytes())?;
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trailer.write_all(&metadata_pos.to_be_bytes())?;
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let mut final_bin = Vec::with_capacity(
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original_bin.len() + eszip_archive.len() + trailer.len(),
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);
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final_bin.append(&mut original_bin);
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final_bin.append(&mut eszip_archive);
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final_bin.append(&mut metadata);
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final_bin.append(&mut trailer);
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Ok(final_bin)
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}
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/// This function writes out a final binary to specified path. If output path
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/// is not already standalone binary it will return error instead.
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async fn write_standalone_binary(
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output_path: PathBuf,
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final_bin: Vec<u8>,
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) -> Result<(), AnyError> {
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if output_path.exists() {
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// If the output is a directory, throw error
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if output_path.is_dir() {
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bail!(
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concat!(
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"Could not compile to file '{}' because a directory exists with ",
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"the same name. You can use the `--output <file-path>` flag to ",
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"provide an alternative name."
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),
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output_path.display()
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);
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}
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// Make sure we don't overwrite any file not created by Deno compiler.
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// Check for magic trailer in last 24 bytes.
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let mut has_trailer = false;
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let mut output_file = File::open(&output_path)?;
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// This seek may fail because the file is too small to possibly be
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// `deno compile` output.
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if output_file.seek(SeekFrom::End(-24)).is_ok() {
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let mut trailer = [0; 24];
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output_file.read_exact(&mut trailer)?;
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let (magic_trailer, _) = trailer.split_at(8);
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has_trailer = magic_trailer == MAGIC_TRAILER;
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}
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if !has_trailer {
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bail!(
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concat!(
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"Could not compile to file '{}' because the file already exists ",
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"and cannot be overwritten. Please delete the existing file or ",
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"use the `--output <file-path` flag to provide an alternative name."
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),
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output_path.display()
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);
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}
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// Remove file if it was indeed a deno compiled binary, to avoid corruption
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// (see https://github.com/denoland/deno/issues/10310)
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std::fs::remove_file(&output_path)?;
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} else {
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let output_base = &output_path.parent().unwrap();
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if output_base.exists() && output_base.is_file() {
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bail!(
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concat!(
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"Could not compile to file '{}' because its parent directory ",
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"is an existing file. You can use the `--output <file-path>` flag to ",
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"provide an alternative name.",
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),
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output_base.display(),
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);
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}
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tokio::fs::create_dir_all(output_base).await?;
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}
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tokio::fs::write(&output_path, final_bin).await?;
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#[cfg(unix)]
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{
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use std::os::unix::fs::PermissionsExt;
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let perms = std::fs::Permissions::from_mode(0o777);
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tokio::fs::set_permissions(output_path, perms).await?;
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}
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Ok(())
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}
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async fn resolve_compile_executable_output_path(
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compile_flags: &CompileFlags,
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current_dir: &Path,
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) -> Result<PathBuf, AnyError> {
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let module_specifier =
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resolve_url_or_path(&compile_flags.source_file, current_dir)?;
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let mut output = compile_flags.output.clone();
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if let Some(out) = output.as_ref() {
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if path_has_trailing_slash(out) {
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if let Some(infer_file_name) = infer_name_from_url(&module_specifier)
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.await
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.map(PathBuf::from)
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{
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output = Some(out.join(infer_file_name));
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}
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} else {
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output = Some(out.to_path_buf());
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}
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}
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if output.is_none() {
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output = infer_name_from_url(&module_specifier)
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.await
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.map(PathBuf::from)
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}
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output.ok_or_else(|| generic_error(
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"An executable name was not provided. One could not be inferred from the URL. Aborting.",
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)).map(|output| {
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get_os_specific_filepath(output, &compile_flags.target)
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})
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}
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fn get_os_specific_filepath(
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output: PathBuf,
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target: &Option<String>,
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) -> PathBuf {
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let is_windows = match target {
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Some(target) => target.contains("windows"),
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None => cfg!(windows),
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};
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if is_windows && output.extension().unwrap_or_default() != "exe" {
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if let Some(ext) = output.extension() {
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// keep version in my-exe-0.1.0 -> my-exe-0.1.0.exe
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output.with_extension(format!("{}.exe", ext.to_string_lossy()))
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} else {
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output.with_extension("exe")
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}
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} else {
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output
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}
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}
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#[cfg(test)]
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mod test {
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pub use super::*;
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#[tokio::test]
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async fn resolve_compile_executable_output_path_target_linux() {
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let path = resolve_compile_executable_output_path(
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&CompileFlags {
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source_file: "mod.ts".to_string(),
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output: Some(PathBuf::from("./file")),
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args: Vec::new(),
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target: Some("x86_64-unknown-linux-gnu".to_string()),
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include: vec![],
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},
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&std::env::current_dir().unwrap(),
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)
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.await
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.unwrap();
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// no extension, no matter what the operating system is
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// because the target was specified as linux
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// https://github.com/denoland/deno/issues/9667
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assert_eq!(path.file_name().unwrap(), "file");
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}
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#[tokio::test]
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async fn resolve_compile_executable_output_path_target_windows() {
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let path = resolve_compile_executable_output_path(
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&CompileFlags {
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source_file: "mod.ts".to_string(),
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output: Some(PathBuf::from("./file")),
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args: Vec::new(),
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target: Some("x86_64-pc-windows-msvc".to_string()),
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include: vec![],
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},
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&std::env::current_dir().unwrap(),
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)
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.await
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.unwrap();
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assert_eq!(path.file_name().unwrap(), "file.exe");
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}
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#[test]
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fn test_os_specific_file_path() {
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fn run_test(path: &str, target: Option<&str>, expected: &str) {
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assert_eq!(
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get_os_specific_filepath(
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PathBuf::from(path),
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&target.map(|s| s.to_string())
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),
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PathBuf::from(expected)
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);
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}
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if cfg!(windows) {
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run_test("C:\\my-exe", None, "C:\\my-exe.exe");
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run_test("C:\\my-exe.exe", None, "C:\\my-exe.exe");
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run_test("C:\\my-exe-0.1.2", None, "C:\\my-exe-0.1.2.exe");
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} else {
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run_test("my-exe", Some("linux"), "my-exe");
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run_test("my-exe-0.1.2", Some("linux"), "my-exe-0.1.2");
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}
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run_test("C:\\my-exe", Some("windows"), "C:\\my-exe.exe");
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run_test("C:\\my-exe.exe", Some("windows"), "C:\\my-exe.exe");
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run_test("C:\\my-exe.0.1.2", Some("windows"), "C:\\my-exe.0.1.2.exe");
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run_test("my-exe-0.1.2", Some("linux"), "my-exe-0.1.2");
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}
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}
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