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93 lines
2.7 KiB
Rust
93 lines
2.7 KiB
Rust
use super::*;
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use crate::preproc::rga_preproc;
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use ::tar::EntryType::Regular;
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use failure::*;
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use lazy_static::lazy_static;
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use std::path::PathBuf;
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static EXTENSIONS: &[&str] = &["tar", "tar.gz", "tar.bz2", "tar.xz", "tar.zst"];
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lazy_static! {
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static ref METADATA: AdapterMeta = AdapterMeta {
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name: "tar".to_owned(),
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version: 1,
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matchers: EXTENSIONS
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.iter()
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.map(|s| Matcher::FileExtension(s.to_string()))
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.collect(),
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};
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}
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#[derive(Default)]
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pub struct TarAdapter;
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impl TarAdapter {
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pub fn new() -> TarAdapter {
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TarAdapter
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}
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}
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impl GetMetadata for TarAdapter {
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fn metadata(&self) -> &AdapterMeta {
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&METADATA
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}
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}
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fn decompress_any<'a, R>(filename: &Path, inp: &'a mut R) -> Fallible<Box<dyn Read + 'a>>
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where
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R: Read,
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{
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let extension = filename.extension().map(|e| e.to_string_lossy().to_owned());
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match extension {
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Some(e) => Ok(match e.to_owned().as_ref() {
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"gz" => Box::new(flate2::read::MultiGzDecoder::new(inp)),
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"bz2" => Box::new(bzip2::read::BzDecoder::new(inp)),
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"xz" => Box::new(xz2::read::XzDecoder::new_multi_decoder(inp)),
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"zst" => Box::new(zstd::stream::read::Decoder::new(inp)?),
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"tar" => Box::new(inp),
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ext => Err(format_err!("don't know how to decompress {}", ext))?,
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}),
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None => Err(format_err!("no extension")),
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}
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}
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impl FileAdapter for TarAdapter {
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fn adapt(&self, ai: AdaptInfo) -> Fallible<()> {
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let AdaptInfo {
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filepath_hint,
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mut inp,
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oup,
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line_prefix,
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archive_recursion_depth,
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config,
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..
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} = ai;
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let decompress = decompress_any(filepath_hint, &mut inp)?;
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let mut archive = ::tar::Archive::new(decompress);
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for entry in archive.entries()? {
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let mut file = entry.unwrap();
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let path = PathBuf::from(file.path()?.to_owned());
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eprintln!(
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"{}|{}: {} bytes",
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filepath_hint.display(),
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path.display(),
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file.header().size()?,
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);
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if Regular == file.header().entry_type() {
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let line_prefix = &format!("{}{}: ", line_prefix, path.display());
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let ai2: AdaptInfo = AdaptInfo {
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filepath_hint: &path,
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is_real_file: false,
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archive_recursion_depth: archive_recursion_depth + 1,
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inp: &mut file,
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oup,
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line_prefix,
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config: config.clone(),
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};
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rga_preproc(ai2)?;
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}
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}
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Ok(())
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}
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}
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