Support LZMA (method 14) compression in zip archives

Cargo.toml

@@ -35,7 +35,7 @@ sha2 = "0.10.6"
 tar = "0.4.46"
 tempfile = "3.27.0"
 thiserror = "2.0.21"
-zip = { version = "8.6.0", features = ["deflate"], default-features = false }
+zip = { version = "8.6.0", features = ["deflate", "lzma"], default-features = false }
 zstd = { version = "0.14.0", features = ["experimental", "zstdmt"] }
 
 [dev-dependencies]

src/util/unarchive.rs

@@ -149,3 +149,23 @@ where
     archive.set_preserve_mtime(true);
     archive.unpack(destination_dir)
 }
+
+#[cfg(all(test, not(dotslash_internal)))]
+mod tests {
+    use std::io::Cursor;
+
+    use super::*;
+
+    #[test]
+    fn unarchive_zip_lzma() {
+        // Created with `7z a -tzip -mm=LZMA`, so the entry uses zip compression
+        // method 14.
+        let zip = Cursor::new(&include_bytes!("testdata/lzma.zip")[..]);
+        let dest = tempfile::tempdir().unwrap();
+        unarchive(zip, dest.path(), ArchiveType::Zip).unwrap();
+        assert_eq!(
+            std::fs::read_to_string(dest.path().join("hello.txt")).unwrap(),
+            "hello lzma zip\n".repeat(40),
+        );
+    }
+}

website/docs/dotslash-file.md

@@ -399,6 +399,9 @@ properties:
 | `zst`     | no       | zstd        |
 | _omitted_ | no       | _none_      |
 
+A `zip` archive can use the store, deflate, or LZMA (method 14) compression
+methods for its entries.
+
 An artifact is either an _archive_ (such as a `.tar` file) or a _single file_.
 
 ### Path