add tar.lz

Author: matt-phylum

src/distribution.rs

@@ -7,7 +7,9 @@ use std::str::FromStr;
 use bzip2::read::BzDecoder;
 use flate2::read::GzDecoder;
 #[cfg(feature = "xz")]
-use xz::read::XzDecoder;
+use xz::bufread::XzDecoder;
+#[cfg(feature = "xz")]
+use xz::stream::Stream as XzStream;
 use zip::ZipArchive;
 
 use crate::{Error, Metadata};
@@ -32,6 +34,8 @@ enum SDistType {
     #[cfg(feature = "bzip2")]
     BzTar,
     #[cfg(feature = "xz")]
+    LzTar,
+    #[cfg(feature = "xz")]
     XzTar,
 }
 
@@ -65,6 +69,8 @@ impl FromStr for SDistType {
             #[cfg(feature = "bzip2")]
             "bz2" | "tbz" => SDistType::BzTar,
             #[cfg(feature = "xz")]
+            "lz" | "lzma" | "tlz" => SDistType::LzTar,
+            #[cfg(feature = "xz")]
             "txz" | "xz" => SDistType::XzTar,
             _ => return Err(Error::UnknownDistributionType),
         };
@@ -160,6 +166,11 @@ impl Distribution {
                 Self::parse_tar(BzDecoder::new(BufReader::new(fs_err::File::open(path)?)))
             }
             #[cfg(feature = "xz")]
+            SDistType::LzTar => Self::parse_tar(XzDecoder::new_stream(
+                BufReader::new(fs_err::File::open(path)?),
+                XzStream::new_lzma_decoder(u64::max_value()).unwrap(),
+            )),
+            #[cfg(feature = "xz")]
             SDistType::XzTar => {
                 Self::parse_tar(XzDecoder::new(BufReader::new(fs_err::File::open(path)?)))
             }

tests/fixtures/build-0.4.0.tar.lz

@@ -84,6 +84,18 @@ fn test_parse_sdist_tar_bz2() {
     assert_eq!(dist.python_version(), "source");
 }
 
+#[cfg(feature = "xz")]
+#[test]
+fn test_parse_sdist_tar_lz() {
+    let dist = Distribution::new("tests/fixtures/build-0.4.0.tar.lz").unwrap();
+    assert_eq!(dist.r#type(), DistributionType::SDist);
+    let metadata = dist.metadata();
+    assert_eq!(metadata.metadata_version, "2.1");
+    assert_eq!(metadata.name, "build");
+    assert!(metadata.home_page.is_none());
+    assert!(metadata.download_url.is_none());
+}
+
 #[cfg(feature = "xz")]
 #[test]
 fn test_parse_sdist_tar_xz() {