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denoland-deno/cli/util/archive.rs

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use std::fs;
use std::path::Path;
use std::path::PathBuf;
use std::process::Command;
use deno_core::anyhow::bail;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
fn unzip_with_shell(
archive_path: &Path,
archive_data: &[u8],
dest_path: &Path,
) -> Result<(), AnyError> {
fs::write(archive_path, archive_data)?;
let unpack_status = if cfg!(windows) {
Command::new("tar.exe")
.arg("xf")
.arg(archive_path)
.arg("-C")
.arg(dest_path)
.spawn()
.map_err(|err| {
if err.kind() == std::io::ErrorKind::NotFound {
std::io::Error::new(
std::io::ErrorKind::NotFound,
"`tar.exe` was not found in your PATH",
)
} else {
err
}
})?
.wait()?
} else {
Command::new("unzip")
.current_dir(dest_path)
.arg(archive_path)
.spawn()
.map_err(|err| {
if err.kind() == std::io::ErrorKind::NotFound {
std::io::Error::new(
std::io::ErrorKind::NotFound,
"`unzip` was not found in your PATH, please install `unzip`",
)
} else {
err
}
})?
.wait()?
};
if !unpack_status.success() {
bail!("Failed to unpack archive.");
}
Ok(())
}
fn unzip(
archive_name: &str,
archive_data: &[u8],
dest_path: &Path,
) -> Result<(), AnyError> {
let mut archive = zip::ZipArchive::new(std::io::Cursor::new(archive_data))?;
archive
.extract(dest_path)
.with_context(|| format!("failed to extract archive: {archive_name}"))?;
Ok(())
}
pub struct UnpackArgs<'a> {
pub exe_name: &'a str,
pub archive_name: &'a str,
pub archive_data: &'a [u8],
pub is_windows: bool,
pub dest_path: &'a Path,
}
pub fn unpack_into_dir(args: UnpackArgs) -> Result<PathBuf, AnyError> {
let UnpackArgs {
exe_name,
archive_name,
archive_data,
is_windows,
dest_path,
} = args;
let exe_ext = if is_windows { "exe" } else { "" };
let archive_path = dest_path.join(exe_name).with_extension("zip");
let exe_path = dest_path.join(exe_name).with_extension(exe_ext);
assert!(!exe_path.exists());
let archive_ext = Path::new(archive_name)
.extension()
.and_then(|ext| ext.to_str())
.unwrap();
match archive_ext {
"zip" => match unzip(archive_name, archive_data, dest_path) {
Ok(()) if !exe_path.exists() => {
log::warn!("unpacking via the zip crate didn't produce the executable");
// No error but didn't produce exe, fallback to shelling out
unzip_with_shell(&archive_path, archive_data, dest_path)?;
}
Ok(_) => {}
Err(e) => {
log::warn!("unpacking via zip crate failed: {e}");
// Fallback to shelling out
unzip_with_shell(&archive_path, archive_data, dest_path)?;
}
},
ext => bail!("Unsupported archive type: '{ext}'"),
}
assert!(exe_path.exists());
Ok(exe_path)
}