feat: add C/C++ CLI hello world examples

.github/workflows/release.yml

@@ -193,12 +193,14 @@ jobs:
           ### Components Included
 
           **C Components:**
-          - `hello_c_debug.wasm` - Debug build
-          - `hello_c_release.wasm` - Release build (optimized)
+          - `hello_c_cli.wasm` - CLI executable (runs with wasmtime)
+          - `hello_c_debug.wasm` - Library component (debug)
+          - `hello_c_release.wasm` - Library component (release)
 
           **C++ Components:**
-          - `hello_cpp_debug.wasm` - Debug build
-          - `hello_cpp_release.wasm` - Release build (optimized)
+          - `hello_cpp_cli.wasm` - CLI executable (runs with wasmtime)
+          - `hello_cpp_debug.wasm` - Library component (debug)
+          - `hello_cpp_release.wasm` - Library component (release)
 
           **Rust Components:**
           - `hello_rust.wasm` - Hello World CLI
@@ -220,6 +222,10 @@ jobs:
           # Install wasmtime
           curl https://wasmtime.dev/install.sh -sSf | bash
 
+          # Run C/C++ CLI examples
+          wasmtime run hello_c_cli.wasm
+          wasmtime run hello_cpp_cli.wasm
+
           # Run Rust CLI examples
           wasmtime run hello_rust.wasm
           wasmtime run calculator.wasm 8 + 8

MODULE.bazel

@@ -6,7 +6,7 @@ pulseengine/rules_wasm_component.
 
 module(
     name = "hello_wasm_components",
-    version = "0.1.0",
+    version = "0.2.0",
 )
 
 # Core dependency - WebAssembly Component Model rules

c/BUILD.bazel

@@ -3,7 +3,7 @@
 Demonstrates building a C WASI component with debug and release variants.
 """
 
-load("@rules_wasm_component//cpp:defs.bzl", "cpp_component")
+load("@rules_wasm_component//cpp:defs.bzl", "cpp_component", "cpp_wasm_binary")
 load("@rules_wasm_component//wit:defs.bzl", "wit_library")
 
 package(default_visibility = ["//visibility:public"])
@@ -44,10 +44,18 @@ alias(
     actual = ":hello_c_release",
 )
 
+# CLI binary (runs directly with wasmtime)
+cpp_wasm_binary(
+    name = "hello_c_cli",
+    srcs = ["src/main.c"],
+    language = "c",
+)
+
 # All variants
 filegroup(
     name = "all",
     srcs = [
+        ":hello_c_cli",
         ":hello_c_debug",
         ":hello_c_release",
     ],

c/src/main.c

@@ -0,0 +1,12 @@
+/**
+ * Hello World WASI CLI in C
+ *
+ * Simple main() that prints to stdout - runs directly with wasmtime.
+ */
+
+#include <stdio.h>
+
+int main(void) {
+    printf("Hello wasm component world from C!\n");
+    return 0;
+}

cpp/BUILD.bazel

@@ -3,7 +3,7 @@
 Demonstrates building a C++ WASI component with debug and release variants.
 """
 
-load("@rules_wasm_component//cpp:defs.bzl", "cpp_component")
+load("@rules_wasm_component//cpp:defs.bzl", "cpp_component", "cpp_wasm_binary")
 load("@rules_wasm_component//wit:defs.bzl", "wit_library")
 
 package(default_visibility = ["//visibility:public"])
@@ -50,10 +50,18 @@ alias(
     actual = ":hello_cpp_release",
 )
 
+# CLI binary (runs directly with wasmtime)
+cpp_wasm_binary(
+    name = "hello_cpp_cli",
+    srcs = ["src/main.cpp"],
+    language = "cpp",
+)
+
 # All variants
 filegroup(
     name = "all",
     srcs = [
+        ":hello_cpp_cli",
         ":hello_cpp_debug",
         ":hello_cpp_release",
     ],

cpp/src/main.cpp

@@ -0,0 +1,12 @@
+/**
+ * Hello World WASI CLI in C++
+ *
+ * Simple main() that prints to stdout - runs directly with wasmtime.
+ */
+
+#include <cstdio>
+
+int main() {
+    printf("Hello wasm component world from C++!\n");
+    return 0;
+}