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denoland-deno/cli/tools/standalone.rs
Bartek Iwańczuk 48ede89f1f
refactor(core): resolve_url_or_path and resolve_url_or_path_deprecated (#18170)
This commit changes current "deno_core::resolve_url_or_path" API to
"resolve_url_or_path_deprecated" and adds new "resolve_url_or_path"
API that requires to explicitly pass the directory from which paths
should be resolved to. 

Some of the call sites were updated to use the new API, the reminder
of them will be updated in a follow up PR.

Towards landing https://github.com/denoland/deno/pull/15454
2023-03-14 01:12:09 +00:00

408 lines
12 KiB
Rust

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