Initial support for tokio

.github/workflows/ci.yaml

@@ -21,7 +21,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest]
         rustalias: [stable, nightly, msrv]
-        feature_flag: ["--all-features", "--no-default-features", ""]
+        feature_flag: ["--no-default-features --features sync_all", "--no-default-features --features tokio_all", "--no-default-features --features sync", "--no-default-features --features tokio", ""]
         include:
         - rustalias: stable
           rust: stable

Cargo.toml

@@ -94,6 +94,8 @@ deflate-zlib-ng = ["flate2/zlib-ng", "_deflate-any"]
 deflate-zopfli = ["zopfli", "_deflate-any"]
 lzma = ["lzma-rs/stream"]
 sync = []
+sync_all = ["aes-crypto", "chrono", "deflate", "deflate-miniz", "deflate-zlib", "deflate-zlib-ng", "deflate-zopfli", "lzma", "sync","time"]
+tokio_all = ["aes-crypto", "chrono", "deflate", "deflate-miniz", "deflate-zlib", "deflate-zlib-ng", "deflate-zopfli", "lzma","time", "tokio"]
 tokio = ["tokio/io-util"]
 unreserved = []
 default = [

src/read.rs

@@ -1,9 +1,11 @@
 //! Types for reading ZIP archives
 
 /// Module for code with synchronous logic
+#[cfg(feature = "sync")]
 pub mod sync;
 
 /// Module for code with asynchronous logic
+#[cfg(feature = "tokio")]
 pub mod tokio;
 
 #[cfg(feature = "aes-crypto")]

src/read/stream.rs

@@ -9,6 +9,7 @@ use std::fs;
 use std::io::{self, Read};
 use std::path::{Path, PathBuf};
 
+#[cfg(feature = "sync")]
 use super::sync::{central_header_to_zip_file_inner, read_zipfile_from_stream};
 
 /// Stream decoder for zip.

src/write.rs

@@ -3,6 +3,7 @@
 #[cfg(feature = "aes-crypto")]
 use crate::aes::AesWriter;
 use crate::compression::CompressionMethod;
+#[cfg(feature = "sync")]
 use crate::read::{sync::find_content, ZipArchive, ZipFile, ZipFileReader};
 use crate::result::{ZipError, ZipResult};
 use crate::spec;