feat: wasm feature (#72)

Add a new `wasm` feature with compression formats that can be compiled
to webassembly.

Author: luizirber

.envrc

@@ -0,0 +1,4 @@
+PATH=~/.pixi/bin:$PATH
+
+watch_file pixi.lock
+eval "$(pixi shell-hook)"

.github/workflows/main.yml

@@ -171,4 +171,4 @@ jobs:
 
       - name: Build on wasm
         run: |
-          cargo build --target wasm32-unknown-unknown --no-default-features --features gz
+          cargo build --target wasm32-unknown-unknown --no-default-features --features wasm

Cargo.lock

@@ -19,6 +19,7 @@ gz = ["flate2"]
 bgz = ["bgzip"]
 xz = ["lzma"]
 zstd = ["dep:zstd"]
+wasm = ["zstd", "lzma", "gz", "bgz"]
 
 # bzip2 feature transitivity
 bz2_tokio = ["bzip2/tokio"]
@@ -37,7 +38,6 @@ gz_rust_backend = ["flate2/rust_backend"]
 # xz feature transitivity
 xz_tokio = ["liblzma/tokio"]
 
-
 [dependencies]
 cfg-if = "1.0"
 thiserror = "2.0"

Cargo.toml

@@ -11,11 +11,18 @@ platforms = ["linux-64", "linux-aarch64", "osx-64", "osx-arm64", "win-64"]
 [environments]
 default = { features = ["dev", "build"], solve-group="default" }
 dev = { features = ["dev", "build"], solve-group = "default" }
+wasm = { features = ["dev", "build", "wasm"], solve-group = "default" }
 msrv = { features = ["msrv", "build"], solve-group = "msrv" }
 
 [feature.msrv.dependencies]
 rust = "~=1.74.0"
 
+[feature.wasm.dependencies]
+rust-std-wasm32-unknown-unknown = "*"
+
+[feature.wasm.tasks]
+build-wasm = "cargo build --target wasm32-unknown-unknown --no-default-features --features wasm"
+
 [feature.msrv.tasks]
 check_msrv = "cargo build"
 

pixi.lock

@@ -40,7 +40,7 @@ pub(crate) fn bytes2type(bytes: [u8; 5]) -> Format {
 
 cfg_if! {
     if #[cfg(feature = "gz")] {
-        pub(crate) fn new_gz_encoder<'a>(out: Box<dyn io::Write  + 'a>, level: Level) -> Result<Box<dyn io::Write  + 'a>, Error> {
+        pub(crate) fn new_gz_encoder<'a>(out: Box<dyn io::Write  + 'a>, level: Level) -> Result<Box<dyn io::Write + 'a>, Error> {
             Ok(Box::new(flate2::write::GzEncoder::new(
         out,
         level.into(),