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97 lines
2.8 KiB
Rust
97 lines
2.8 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use deno_core::anyhow;
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use deno_core::anyhow::Context;
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use deno_core::error::AnyError;
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use deno_core::url::Url;
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use hyper::body::Bytes;
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use std::io::Write;
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use std::path::Path;
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use tar::Header;
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use crate::util::import_map::ImportMapUnfurler;
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pub fn create_gzipped_tarball(
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dir: &Path,
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// TODO(bartlomieju): this is too specific, factor it out into a callback that
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// returns data
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unfurler: ImportMapUnfurler,
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) -> Result<(Bytes, Vec<String>), AnyError> {
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let mut tar = TarGzArchive::new();
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let dir = dir
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.canonicalize()
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.map_err(|_| anyhow::anyhow!("Unable to canonicalize path {:?}", dir))?;
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let mut diagnostics = vec![];
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for entry in walkdir::WalkDir::new(&dir).follow_links(false) {
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let entry = entry?;
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if entry.file_type().is_file() {
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let url = Url::from_file_path(entry.path())
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.map_err(|_| anyhow::anyhow!("Unable to convert path to url"))?;
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let relative_path = entry
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.path()
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.strip_prefix(&dir)
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.map_err(|err| anyhow::anyhow!("Unable to strip prefix: {err}"))?;
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let relative_path = relative_path.to_str().ok_or_else(|| {
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anyhow::anyhow!("Unable to convert path to string {:?}", relative_path)
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})?;
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let data = std::fs::read(entry.path())
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.with_context(|| format!("Unable to read file {:?}", entry.path()))?;
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let (content, unfurl_diagnostics) = unfurler
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.unfurl(&url, data)
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.with_context(|| format!("Unable to unfurl file {:?}", entry.path()))?;
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diagnostics.extend_from_slice(&unfurl_diagnostics);
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tar
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.add_file(relative_path.to_string(), &content)
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.with_context(|| {
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format!("Unable to add file to tarball {:?}", entry.path())
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})?;
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} else if entry.file_type().is_dir() {
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// skip
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} else {
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diagnostics
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.push(format!("Unsupported file type at path {:?}", entry.path()));
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}
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}
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let v = tar.finish().context("Unable to finish tarball")?;
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Ok((Bytes::from(v), diagnostics))
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}
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struct TarGzArchive {
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builder: tar::Builder<Vec<u8>>,
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}
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impl TarGzArchive {
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pub fn new() -> Self {
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Self {
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builder: tar::Builder::new(Vec::new()),
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}
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}
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pub fn add_file(
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&mut self,
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path: String,
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data: &[u8],
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) -> Result<(), AnyError> {
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let mut header = Header::new_gnu();
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header.set_size(data.len() as u64);
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self.builder.append_data(&mut header, &path, data)?;
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Ok(())
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}
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fn finish(mut self) -> Result<Vec<u8>, AnyError> {
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self.builder.finish()?;
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let bytes = self.builder.into_inner()?;
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let mut gz_bytes = Vec::new();
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let mut encoder = flate2::write::GzEncoder::new(
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&mut gz_bytes,
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flate2::Compression::default(),
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);
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encoder.write_all(&bytes)?;
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encoder.finish()?;
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Ok(gz_bytes)
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}
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}
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