1 files changed, 61 insertions, 0 deletions
diff --git a/src/git/serde.rs b/src/git/serde.rs
new file mode 100644
index 0000000..e20df47
--- /dev/null
+++ b/src/git/serde.rs
@@ -0,0 +1,61 @@
+// Copyright © 2022 Kim Altintop <kim@eagain.io>
+// SPDX-License-Identifier: GPL-2.0-only WITH openvpn-openssl-exception
+
+use std::str::FromStr;
+
+use serde::{
+    Deserialize,
+    Deserializer,
+    Serialize,
+    Serializer,
+};
+
+pub mod oid {
+    use super::*;
+
+    #[derive(serde::Serialize, serde::Deserialize)]
+    pub struct Oid(#[serde(with = "self")] pub git2::Oid);
+
+    impl From<git2::Oid> for Oid {
+        fn from(oid: git2::Oid) -> Self {
+            Self(oid)
+        }
+    }
+
+    pub fn serialize<S>(oid: &git2::Oid, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serializer.serialize_str(&oid.to_string())
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<git2::Oid, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let hex: &str = Deserialize::deserialize(deserializer)?;
+        git2::Oid::from_str(hex).map_err(serde::de::Error::custom)
+    }
+
+    pub mod option {
+        use super::*;
+
+        pub fn serialize<S>(oid: &Option<git2::Oid>, serializer: S) -> Result<S::Ok, S::Error>
+        where
+            S: Serializer,
+        {
+            oid.as_ref().map(ToString::to_string).serialize(serializer)
+        }
+
+        #[allow(unused)]
+        pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<git2::Oid>, D::Error>
+        where
+            D: Deserializer<'de>,
+        {
+            let hex: Option<&str> = Deserialize::deserialize(deserializer)?;
+            hex.map(FromStr::from_str)
+                .transpose()
+                .map_err(serde::de::Error::custom)
+        }
+    }
+}