refactor(cred): Move macos impl to inline mod

crates/credential/cargo-credential-macos-keychain/src/main.rs

@@ -1,50 +1,52 @@
 //! Cargo registry macos keychain credential process.
 
-use cargo_credential::{Credential, Error};
-use security_framework::os::macos::keychain::SecKeychain;
+mod macos {
+    use cargo_credential::{Credential, Error};
+    use security_framework::os::macos::keychain::SecKeychain;
 
-struct MacKeychain;
+    pub(crate) struct MacKeychain;
 
-/// The account name is not used.
-const ACCOUNT: &'static str = "";
+    /// The account name is not used.
+    const ACCOUNT: &'static str = "";
 
-fn registry(registry_name: &str) -> String {
-    format!("cargo-registry:{}", registry_name)
-}
-
-impl Credential for MacKeychain {
-    fn name(&self) -> &'static str {
-        env!("CARGO_PKG_NAME")
+    fn registry(registry_name: &str) -> String {
+        format!("cargo-registry:{}", registry_name)
     }
 
-    fn get(&self, index_url: &str) -> Result<String, Error> {
-        let keychain = SecKeychain::default().unwrap();
-        let service_name = registry(index_url);
-        let (pass, _item) = keychain.find_generic_password(&service_name, ACCOUNT)?;
-        String::from_utf8(pass.as_ref().to_vec())
-            .map_err(|_| "failed to convert token to UTF8".into())
-    }
+    impl Credential for MacKeychain {
+        fn name(&self) -> &'static str {
+            env!("CARGO_PKG_NAME")
+        }
 
-    fn store(&self, index_url: &str, token: &str, name: Option<&str>) -> Result<(), Error> {
-        let keychain = SecKeychain::default().unwrap();
-        let service_name = registry(name.unwrap_or(index_url));
-        if let Ok((_pass, mut item)) = keychain.find_generic_password(&service_name, ACCOUNT) {
-            item.set_password(token.as_bytes())?;
-        } else {
-            keychain.add_generic_password(&service_name, ACCOUNT, token.as_bytes())?;
+        fn get(&self, index_url: &str) -> Result<String, Error> {
+            let keychain = SecKeychain::default().unwrap();
+            let service_name = registry(index_url);
+            let (pass, _item) = keychain.find_generic_password(&service_name, ACCOUNT)?;
+            String::from_utf8(pass.as_ref().to_vec())
+                .map_err(|_| "failed to convert token to UTF8".into())
+        }
+
+        fn store(&self, index_url: &str, token: &str, name: Option<&str>) -> Result<(), Error> {
+            let keychain = SecKeychain::default().unwrap();
+            let service_name = registry(name.unwrap_or(index_url));
+            if let Ok((_pass, mut item)) = keychain.find_generic_password(&service_name, ACCOUNT) {
+                item.set_password(token.as_bytes())?;
+            } else {
+                keychain.add_generic_password(&service_name, ACCOUNT, token.as_bytes())?;
+            }
+            Ok(())
         }
-        Ok(())
-    }
 
-    fn erase(&self, index_url: &str) -> Result<(), Error> {
-        let keychain = SecKeychain::default().unwrap();
-        let service_name = registry(index_url);
-        let (_pass, item) = keychain.find_generic_password(&service_name, ACCOUNT)?;
-        item.delete();
-        Ok(())
+        fn erase(&self, index_url: &str) -> Result<(), Error> {
+            let keychain = SecKeychain::default().unwrap();
+            let service_name = registry(index_url);
+            let (_pass, item) = keychain.find_generic_password(&service_name, ACCOUNT)?;
+            item.delete();
+            Ok(())
+        }
     }
 }
 
 fn main() {
-    cargo_credential::main(MacKeychain);
+    cargo_credential::main(macos::MacKeychain);
 }