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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use bytes::Bytes;
use deno_core::anyhow;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
use deno_core::url::Url;
use sha2::Digest;
use std::fmt::Write as FmtWrite;
use std::io::Write;
use std::path::Path;
use std::path::PathBuf;
use tar::Header;
use crate::util::import_map::ImportMapUnfurler;
use deno_config::glob::PathOrPatternSet;
#[derive(Debug, Clone, PartialEq)]
pub struct PublishableTarballFile {
pub path: PathBuf,
pub size: usize,
}
#[derive(Debug, Clone, PartialEq)]
pub struct PublishableTarball {
pub files: Vec<PublishableTarballFile>,
pub diagnostics: Vec<String>,
pub hash: String,
pub bytes: Bytes,
}
pub fn create_gzipped_tarball(
dir: &Path,
source_cache: &dyn deno_graph::ParsedSourceStore,
unfurler: &ImportMapUnfurler,
exclude_patterns: &PathOrPatternSet,
) -> Result<PublishableTarball, AnyError> {
let mut tar = TarGzArchive::new();
let mut diagnostics = vec![];
let mut files = vec![];
let mut iterator = walkdir::WalkDir::new(dir).follow_links(false).into_iter();
while let Some(entry) = iterator.next() {
let entry = entry?;
if exclude_patterns.matches_path(entry.path()) {
if entry.file_type().is_dir() {
iterator.skip_current_dir();
}
continue;
}
if entry.file_type().is_file() {
let url = Url::from_file_path(entry.path())
.map_err(|_| anyhow::anyhow!("Unable to convert path to url"))?;
let relative_path = entry
.path()
.strip_prefix(dir)
.map_err(|err| anyhow::anyhow!("Unable to strip prefix: {err:#}"))?;
let relative_path_str = relative_path.to_str().ok_or_else(|| {
anyhow::anyhow!(
"Unable to convert path to string '{}'",
relative_path.display()
)
})?;
let data = std::fs::read(entry.path()).with_context(|| {
format!("Unable to read file '{}'", entry.path().display())
})?;
files.push(PublishableTarballFile {
path: relative_path.to_path_buf(),
size: data.len(),
});
let content = match source_cache.get_parsed_source(&url) {
Some(parsed_source) => {
let (content, unfurl_diagnostics) =
unfurler.unfurl(&url, &parsed_source);
diagnostics.extend_from_slice(&unfurl_diagnostics);
content.into_bytes()
}
None => data,
};
tar
.add_file(relative_path_str.to_string(), &content)
.with_context(|| {
format!("Unable to add file to tarball '{}'", entry.path().display())
})?;
} else if entry.file_type().is_dir() {
if entry.file_name() == ".git" || entry.file_name() == "node_modules" {
iterator.skip_current_dir();
}
} else {
diagnostics.push(format!(
"Unsupported file type at path '{}'",
entry.path().display()
));
}
}
let v = tar.finish().context("Unable to finish tarball")?;
let hash_bytes: Vec<u8> = sha2::Sha256::digest(&v).iter().cloned().collect();
let mut hash = "sha256-".to_string();
for byte in hash_bytes {
write!(&mut hash, "{:02x}", byte).unwrap();
}
Ok(PublishableTarball {
files,
diagnostics,
hash,
bytes: Bytes::from(v),
})
}
struct TarGzArchive {
builder: tar::Builder<Vec<u8>>,
}
impl TarGzArchive {
pub fn new() -> Self {
Self {
builder: tar::Builder::new(Vec::new()),
}
}
pub fn add_file(
&mut self,
path: String,
data: &[u8],
) -> Result<(), AnyError> {
let mut header = Header::new_gnu();
header.set_size(data.len() as u64);
self.builder.append_data(&mut header, &path, data)?;
Ok(())
}
fn finish(mut self) -> Result<Vec<u8>, AnyError> {
self.builder.finish()?;
let bytes = self.builder.into_inner()?;
let mut gz_bytes = Vec::new();
let mut encoder = flate2::write::GzEncoder::new(
&mut gz_bytes,
flate2::Compression::default(),
);
encoder.write_all(&bytes)?;
encoder.finish()?;
Ok(gz_bytes)
}
}
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