1 files changed, 113 insertions, 0 deletions
diff --git a/vendor/gix-odb/src/find.rs b/vendor/gix-odb/src/find.rs
new file mode 100644
index 000000000..69eccbf04
--- /dev/null
+++ b/vendor/gix-odb/src/find.rs
@@ -0,0 +1,113 @@
+///
+pub mod existing {
+    use gix_hash::ObjectId;
+
+    /// The error returned by the [`find(…)`][crate::FindExt::find()] trait methods.
+    #[derive(Debug, thiserror::Error)]
+    #[allow(missing_docs)]
+    pub enum Error<T: std::error::Error + 'static> {
+        #[error(transparent)]
+        Find(T),
+        #[error("An object with id {} could not be found", .oid)]
+        NotFound { oid: ObjectId },
+    }
+}
+
+///
+pub mod existing_object {
+    use gix_hash::ObjectId;
+
+    /// The error returned by the various [`find_*()`][crate::FindExt::find_commit()] trait methods.
+    #[derive(Debug, thiserror::Error)]
+    #[allow(missing_docs)]
+    pub enum Error<T: std::error::Error + 'static> {
+        #[error(transparent)]
+        Find(T),
+        #[error(transparent)]
+        Decode(gix_object::decode::Error),
+        #[error("An object with id {oid} could not be found")]
+        NotFound { oid: ObjectId },
+        #[error("Expected object of kind {expected}")]
+        ObjectKind { expected: gix_object::Kind },
+    }
+}
+
+///
+pub mod existing_iter {
+    use gix_hash::ObjectId;
+
+    /// The error returned by the various [`find_*_iter()`][crate::FindExt::find_commit_iter()] trait methods.
+    #[derive(Debug, thiserror::Error)]
+    #[allow(missing_docs)]
+    pub enum Error<T: std::error::Error + 'static> {
+        #[error(transparent)]
+        Find(T),
+        #[error("An object with id {oid} could not be found")]
+        NotFound { oid: ObjectId },
+        #[error("Expected object of kind {expected}")]
+        ObjectKind { expected: gix_object::Kind },
+    }
+}
+
+/// An object header informing about object properties, without it being fully decoded in the process.
+#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
+pub enum Header {
+    /// The object was not packed, but is currently located in the loose object portion of the database.
+    ///
+    /// As packs are searched first, this means that in this very moment, the object whose header we retrieved is unique
+    /// in the object database.
+    Loose {
+        /// The kind of the object.
+        kind: gix_object::Kind,
+        /// The size of the object's data in bytes.
+        size: u64,
+    },
+    /// The object was present in a pack.
+    ///
+    /// Note that this does not imply it is unique in the database, as it might be present in more than one pack and even
+    /// as loose object.
+    Packed(gix_pack::data::decode::header::Outcome),
+}
+
+mod header {
+    use super::Header;
+
+    impl Header {
+        /// Return the object kind of the object we represent.
+        pub fn kind(&self) -> gix_object::Kind {
+            match self {
+                Header::Packed(out) => out.kind,
+                Header::Loose { kind, .. } => *kind,
+            }
+        }
+        /// Return the size of the object in bytes.
+        pub fn size(&self) -> u64 {
+            match self {
+                Header::Packed(out) => out.object_size,
+                Header::Loose { size, .. } => *size,
+            }
+        }
+        /// Return the amount of deltas decoded to obtain this header, if the object was packed.
+        pub fn num_deltas(&self) -> Option<u32> {
+            match self {
+                Header::Packed(out) => out.num_deltas.into(),
+                Header::Loose { .. } => None,
+            }
+        }
+    }
+
+    impl From<gix_pack::data::decode::header::Outcome> for Header {
+        fn from(packed_header: gix_pack::data::decode::header::Outcome) -> Self {
+            Header::Packed(packed_header)
+        }
+    }
+
+    impl From<(usize, gix_object::Kind)> for Header {
+        fn from((object_size, kind): (usize, gix_object::Kind)) -> Self {
+            Header::Loose {
+                kind,
+                size: object_size as u64,
+            }
+        }
+    }
+}