oci-spec is a library for Serialize/Deserialize oci-runtime-spec and oci-image-spec config.

Use load of Spec to deserialize oci-runtime-spec config.

If it is a required item in oci-runtime-spec but there is no value in JSON, an error will occur. Also if there is no JSON value in the optional item in oci-runtime-spec, None will be set.

For example, ociVersion is a required item in oci-runtime-spec, but if ociVersion does not exist in JSON, an error occurs.

Although root is an object type and internally has a required path, no error occurs even if there is no value in JSON. However, if root has a value in JSON and the value of the required item held internally is not in JSON, an error occurs.

Example:

extern crate oci_spec;

use oci_spec::runtime::Spec;

fn main() {
    // Deserialize oci runtime specification config.
    let spec = match Spec::load("config.json") {
        Ok(s) => s,
        Err(e) => panic!("{}", e),
    }
    println!("oci-runtime-spec version is {}", spec.version);
}

Use save of Spec to serialize oci runtime spec config.

If the type is Option and the value is None, it is not serialized.

Example:

extern crate oci_spec;

use oci_spec::runtime::Spec;

fn main() {
    // Deserialize oci runtime specification config.
    let spec = match Spec::load("config.json") {
        Ok(s) => s,
        Err(e) => panic!("{}", e),
    }
    
    // Serialize oci runtime specification config.
    match Spec::save(&spec, "config.json") {
        Ok(_) => {},
        Err(e) => panic!("{}", e),
    }
}

oci-spec is under the MIT or Apache-2.0 license.