Add the example workspace to the CI

.github/workflows/example-project.yml

@@ -47,22 +47,32 @@ jobs:
         run: |
           cargo cbuild --verbose --release
 
+      - name: Build C API for example workspace
+        working-directory: example-workspace
+        run: |
+          cargo cbuild --verbose --release
+
       - name: Run C API tests for example project
         working-directory: example-project
         run: |
           cargo ctest --verbose --release
 
-      - name: Install into temporary location
+      - name: Install into temporary location the example project
         working-directory: example-project
         run: |
           cargo cinstall --verbose --release --destdir=temp
 
+      - name: Install into temporary location the example workspace
+        working-directory: example-workspace
+        run: |
+          cargo cinstall --verbose --release --destdir=temp
+
       - name: Copy installed files to /usr/local
         if: startsWith(matrix.os, 'macos') || startsWith(matrix.os, 'ubuntu')
         working-directory: example-project
         run: |
           sudo cp -r temp/usr/local/* /usr/local/
-      
+
       - name: Install into Cargo root
         if: startsWith(matrix.os, 'windows')
         shell: bash
@@ -82,13 +92,13 @@ jobs:
         uses: awalsh128/cache-apt-pkgs-action@latest
         with:
           packages: pkgconf
-  
+
       - name: Setup Meson + Ninja
         if: startsWith(matrix.os, 'windows')
         run: |
           python3 -m pip install --upgrade pip setuptools wheel
           python3 -m pip install meson ninja
-  
+
       - name: Setup MSVC for test
         if: startsWith(matrix.os, 'windows')
         uses: ilammy/msvc-dev-cmd@v1

example-workspace/Cargo.toml

@@ -2,4 +2,5 @@
 members = [
     "api-a",
     "api-b",
+    "api-c",
 ]

example-workspace/api-c/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "api-c"
+version = "0.1.0"
+authors = ["Luca Barbato <[email protected]>"]
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[features]
+capi = ["libc"]
+
+[dependencies]
+libc = { version = "0.2", optional = true }
+
+[package.metadata.capi.library]
+name = "name_with_underscore-and-dashes"
+version_suffix_components = 3
+rustflags = "-Cmetadata=name_with_underscore-and-dashes"
+

example-workspace/api-c/src/lib.rs

@@ -0,0 +1,15 @@
+#[cfg(feature = "capi")]
+mod capi {
+    #[no_mangle]
+    extern "C" fn info() {
+        eprintln!("C-API");
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}