refactor: seperate cli crate

Signed-off-by: Henry Gressmann <mail@henrygressmann.de>

2 files changed, 58 insertions, 0 deletions

diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
new file mode 100644
index 0000000..cdd0266
--- /dev/null
+++ b/crates/cli/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name="tinywasm-cli"
+version="0.0.0"
+edition="2021"
+
+[[bin]]
+name="tinywasm"
+path="bin.rs"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+tinywasm={path="../core"}
+argh="0.1"
+color-eyre="0.6"
diff --git a/crates/cli/bin.rs b/crates/cli/bin.rs
new file mode 100644
index 0000000..4e85481
--- /dev/null
+++ b/crates/cli/bin.rs
@@ -0,0 +1,43 @@
+use argh::FromArgs;
+use color_eyre::eyre::Result;
+use tinywasm::{self, Module};
+
+#[derive(FromArgs)]
+/// TinyWasm CLI
+struct TinyWasmCli {
+    #[argh(subcommand)]
+    nested: TinyWasmSubcommand,
+}
+
+#[derive(FromArgs)]
+#[argh(subcommand)]
+enum TinyWasmSubcommand {
+    Run(Run),
+}
+
+#[derive(FromArgs)]
+/// run a wasm file
+#[argh(subcommand, name = "run")]
+struct Run {
+    /// wasm file to run
+    #[argh(positional)]
+    wasm_file: String,
+}
+
+fn main() -> Result<()> {
+    let args: TinyWasmCli = argh::from_env();
+
+    match args.nested {
+        TinyWasmSubcommand::Run(Run { wasm_file }) => {
+            let wasm = std::fs::read(wasm_file).unwrap();
+            run(&wasm)?;
+            Ok(())
+        }
+    }
+}
+
+fn run(wasm: &[u8]) -> Result<()> {
+    let module = Module::new(wasm)?;
+    println!("{:#?}", module);
+    Ok(())
+}