feat: add wasm-pack to allow publishing to npm

.gitignore

@@ -1 +1,3 @@
 /target
+
+.DS_Store

Cargo.toml

@@ -49,9 +49,18 @@ schemars = ["alloc", "serde", "serde_json", "dep:schemars"]
 arbitrary = ["std", "dep:arbitrary"]
 hex = []
 
+wasm = ["std", "curr", "base64", "serde", "serde_json", "schemars",  "dep:thiserror"]
+# can also be compiled with --wasm32-wasi
+cli = ["dep:clap", "wasm"]
 # Features for the CLI.
-cli = ["std", "curr", "next", "base64", "serde", "serde_json", "schemars", "dep:clap", "dep:thiserror"]
 
 [package.metadata.docs.rs]
 all-features = true
 rustdoc-args = ["--cfg", "docs"]
+
+[workspace]
+members = ["crates/*"]
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"

README.md

@@ -87,4 +87,28 @@ Parse a `BucketEntry` framed stream from a bucket file:
 stellar-xdr decode --type BucketEntry --input stream-framed --output json-formatted bucket.xdr
 ```
 
+## Wasm pack
+
+`wasm-pack.sh` will use [`wasm-pack`](https://rustwasm.github.io/wasm-pack/installer/) to build a npm package and use [yalc](https://github.com/wclr/yalc) pubilsh it locally. It uses the following environment variables:
+- `PROFILE` - default `dev`
+- `TARGETS` - default `bundler nodejs web no-modules`
+
+After running the script you can install the package corresponding target with yalc:
+
+```
+yalc add stellar-xdr-wasm-web
+yalc link stellar-xdr-wasm-web
+```
+
+Then you can import package as normal
+
+```ts
+import * as xdr from "stellar-xdr-wasm-web";
+```
+
+#### cargo watch for changes
+
+```
+cargo watch -s "TARGETS=web ./wasm-pack.sh"
+```
 License: Apache-2.0

crates/stellar-xdr-wasm/.appveyor.yml

@@ -0,0 +1,11 @@
+install:
+  - appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
+  - if not defined RUSTFLAGS rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain nightly
+  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
+  - rustc -V
+  - cargo -V
+
+build: false
+
+test_script:
+  - cargo test --locked

crates/stellar-xdr-wasm/.gitignore

@@ -0,0 +1,6 @@
+/target
+**/*.rs.bk
+Cargo.lock
+bin/
+pkg/
+wasm-pack.log

crates/stellar-xdr-wasm/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "stellar-xdr-wasm"
+version = "0.1.0"
+authors = ["Willem Wyndham <[email protected]>"]
+edition = "2018"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[features]
+default = ["console_error_panic_hook"]
+schema = []
+
+[dependencies]
+wasm-bindgen = "0.2.84"
+stellar-xdr = { path = "../..", package = "stellar-xdr", features = ["wasm"]}
+
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+console_error_panic_hook = { version = "0.1.7", optional = true }
+serde-json-wasm = "1.0.1"
+serde_json = "1.0.114"
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.34"
+