Support 'homepage' field of Cargo.toml and package.json

src/manifest/mod.rs

@@ -41,6 +41,7 @@ struct CargoPackage {
     description: Option<String>,
     license: Option<String>,
     repository: Option<String>,
+    homepage: Option<String>,
 
     #[serde(default)]
     metadata: CargoMetadata,
@@ -199,6 +200,7 @@ struct NpmData {
     files: Vec<String>,
     dts_file: Option<String>,
     main: String,
+    homepage: Option<String>, // https://docs.npmjs.com/files/package.json#homepage
 }
 
 #[doc(hidden)]
@@ -422,6 +424,7 @@ impl CrateData {
             dts_file,
             files,
             main: js_file,
+            homepage: self.manifest.package.homepage.clone(),
         }
     }
 
@@ -448,6 +451,7 @@ impl CrateData {
                 }),
             files: data.files,
             main: data.main,
+            homepage: data.homepage,
             types: data.dts_file,
         })
     }
@@ -475,6 +479,7 @@ impl CrateData {
                 }),
             files: data.files,
             module: data.main,
+            homepage: data.homepage,
             types: data.dts_file,
             side_effects: "false".to_string(),
         })
@@ -503,6 +508,7 @@ impl CrateData {
                 }),
             files: data.files,
             browser: data.main,
+            homepage: data.homepage,
             types: data.dts_file,
         })
     }

src/manifest/npm/commonjs.rs

@@ -16,5 +16,7 @@ pub struct CommonJSPackage {
     pub files: Vec<String>,
     pub main: String,
     #[serde(skip_serializing_if = "Option::is_none")]
+    pub homepage: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub types: Option<String>,
 }

src/manifest/npm/esmodules.rs

@@ -16,6 +16,8 @@ pub struct ESModulesPackage {
     pub files: Vec<String>,
     pub module: String,
     #[serde(skip_serializing_if = "Option::is_none")]
+    pub homepage: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub types: Option<String>,
     #[serde(rename = "sideEffects")]
     pub side_effects: String,

src/manifest/npm/nomodules.rs

@@ -16,5 +16,7 @@ pub struct NoModulesPackage {
     pub files: Vec<String>,
     pub browser: String,
     #[serde(skip_serializing_if = "Option::is_none")]
+    pub homepage: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub types: Option<String>,
 }

tests/all/manifest.rs

@@ -279,6 +279,63 @@ fn it_errors_when_wasm_bindgen_is_not_declared() {
     assert!(crate_data.check_crate_config(&step).is_err());
 }
 
+#[test]
+fn it_sets_homepage_field_if_available_in_cargo_toml() {
+    // When 'homepage' is available
+    let fixture = utils::fixture::Fixture::new();
+    fixture.hello_world_src_lib().file(
+        "Cargo.toml",
+        r#"
+            [package]
+            authors = ["The wasm-pack developers"]
+            description = "so awesome rust+wasm package"
+            license = "WTFPL"
+            name = "homepage-field-test"
+            repository = "https://github.com/rustwasm/wasm-pack.git"
+            version = "0.1.0"
+            homepage = "https://rustwasm.github.io/wasm-pack/"
+
+            [lib]
+            crate-type = ["cdylib"]
+
+            [dependencies]
+            wasm-bindgen = "=0.2"
+
+            [dev-dependencies]
+            wasm-bindgen-test = "=0.2"
+        "#,
+    );
+
+    let out_dir = fixture.path.join("pkg");
+    let crate_data = manifest::CrateData::new(&fixture.path).unwrap();
+
+    let step = wasm_pack::progressbar::Step::new(2);
+    wasm_pack::command::utils::create_pkg_dir(&out_dir, &step).unwrap();
+    crate_data
+        .write_package_json(&out_dir, &None, true, "", &step)
+        .unwrap();
+
+    let pkg = utils::manifest::read_package_json(&fixture.path, &out_dir).unwrap();
+    assert_eq!(
+        pkg.homepage,
+        Some("https://rustwasm.github.io/wasm-pack/".to_string()),
+    );
+
+    // When 'homepage' is unavailable
+    let fixture = fixture::js_hello_world();
+    let out_dir = fixture.path.join("pkg");
+    let crate_data = manifest::CrateData::new(&fixture.path).unwrap();
+
+    let step = wasm_pack::progressbar::Step::new(2);
+    wasm_pack::command::utils::create_pkg_dir(&out_dir, &step).unwrap();
+    crate_data
+        .write_package_json(&out_dir, &None, true, "", &step)
+        .unwrap();
+
+    let pkg = utils::manifest::read_package_json(&fixture.path, &out_dir).unwrap();
+    assert_eq!(pkg.homepage, None);
+}
+
 #[test]
 fn it_does_not_error_when_wasm_bindgen_is_declared() {
     let fixture = fixture::js_hello_world();

tests/all/utils/manifest.rs

@@ -23,6 +23,7 @@ pub struct NpmPackage {
     pub types: String,
     #[serde(default = "default_none", rename = "sideEffects")]
     pub side_effects: String,
+    pub homepage: Option<String>,
 }
 
 fn default_none() -> String {