Generate FFI bindings for C

.github/workflows/rust.yml

@@ -124,8 +124,10 @@ jobs:
       - name: Check diff
         run: git diff --exit-code
       # Todo: eventually we should check in bindings and test them
-      - name: Makefile tests
-        run: cd temporal_capi/cpp_tests && make
+      - name: FFI tests
+        run: |
+          pushd temporal_capi/tests/c && make && popd
+          pushd temporal_capi/tests/cpp && make && popd
 
       # There's no guarantee that dependencies are no_std unless you test with a toolchain without `std`
       - name: Install no_std toolchain

.gitignore

@@ -17,3 +17,7 @@ tzdata/
 
 # Ignore log files
 *.log
+
+# Ignore clangd files
+.cache
+compile_commands.json

diplomat-gen/src/main.rs

@@ -1,23 +1,35 @@
-use std::path::Path;
+use std::{io, path::Path};
+
+use diplomat_tool::config::Config;
 
 fn main() -> std::io::Result<()> {
+    const LANGUAGES: [&str; 2] = ["c", "cpp"];
+
     let manifest = Path::new(env!("CARGO_MANIFEST_DIR"));
 
     let capi = manifest.parent().unwrap().join("temporal_capi");
 
-    let library_config = Default::default();
+    let library_config = Config::default();
+
+    for lang in LANGUAGES {
+        diplomat_tool::gen(
+            &capi.join("src/lib.rs"),
+            lang,
+            &{
+                let include = capi.join("bindings").join(lang);
+                if let Err(err) = std::fs::remove_dir_all(&include) {
+                    if err.kind() != io::ErrorKind::NotFound {
+                        return Err(err);
+                    }
+                }
+                std::fs::create_dir(&include)?;
+                include
+            },
+            &Default::default(),
+            library_config.clone(),
+            false,
+        )?;
+    }
 
-    diplomat_tool::gen(
-        &capi.join("src/lib.rs"),
-        "cpp",
-        &{
-            let include = capi.join("bindings").join("cpp");
-            std::fs::remove_dir_all(&include)?;
-            std::fs::create_dir(&include)?;
-            include
-        },
-        &Default::default(),
-        library_config,
-        false,
-    )
+    Ok(())
 }