feat(rechunk): Add the ability to rechunk an image

process/drivers/types.rs

@@ -235,3 +235,74 @@ impl ImageMetadata {
         )
     }
 }
+
+#[cfg(feature = "rechunk")]
+pub struct ContainerId(pub(super) String);
+
+#[cfg(feature = "rechunk")]
+impl std::fmt::Display for ContainerId {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", &self.0)
+    }
+}
+
+#[cfg(feature = "rechunk")]
+impl AsRef<std::ffi::OsStr> for ContainerId {
+    fn as_ref(&self) -> &std::ffi::OsStr {
+        self.0.as_ref()
+    }
+}
+
+#[cfg(feature = "rechunk")]
+pub struct MountId(pub(super) String);
+
+#[cfg(feature = "rechunk")]
+impl std::fmt::Display for MountId {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", &self.0)
+    }
+}
+
+#[cfg(feature = "rechunk")]
+impl AsRef<std::ffi::OsStr> for MountId {
+    fn as_ref(&self) -> &std::ffi::OsStr {
+        self.0.as_ref()
+    }
+}
+
+#[cfg(feature = "rechunk")]
+impl<'a> From<&'a MountId> for std::borrow::Cow<'a, str> {
+    fn from(value: &'a MountId) -> Self {
+        Self::Borrowed(&value.0)
+    }
+}
+
+#[cfg(feature = "rechunk")]
+pub struct OciDir(String);
+
+#[cfg(feature = "rechunk")]
+impl std::fmt::Display for OciDir {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", &self.0)
+    }
+}
+
+#[cfg(feature = "rechunk")]
+impl AsRef<std::ffi::OsStr> for OciDir {
+    fn as_ref(&self) -> &std::ffi::OsStr {
+        self.0.as_ref()
+    }
+}
+
+#[cfg(feature = "rechunk")]
+impl TryFrom<std::path::PathBuf> for OciDir {
+    type Error = miette::Report;
+
+    fn try_from(value: std::path::PathBuf) -> Result<Self, Self::Error> {
+        if !value.is_dir() {
+            miette::bail!("OCI directory doesn't exist at {}", value.display());
+        }
+
+        Ok(Self(format!("oci:{}", value.display())))
+    }
+}