{
    "$schema":     "http://json-schema.org/draft-04/schema#",
    "title":       "File Metadata",
    "description": "Metadata about a file, directory, or symbolic link",
    "type":        "object",
    "properties": {
        "path": {
            "type": "string"
        },
        "relative_path": {
            "oneOf": [{"type": "string"}, {"type": "null"}]
        },
        "links": {
            "enum": ["manage", "follow"]
        },
        "owner": {
            "type": "integer"
        },
        "group": {
            "type": "integer"
        },
        "mode": {
            "type": "integer"
        },
        "type": {
            "enum": ["file", "directory", "link"]
        },
        "destination": {
            "oneOf": [{"type": "string"}, {"type": "null"}]
        },
        "checksum": {
            "type": "object",
            "properties": {
                "type": {
                    "enum": ["md5", "sha256", "ctime"]
                },
                "value": {
                    "type": "string"
                }
            },
            "required": ["type", "value"],
            "additionalProperties": false
        },
        "source": {
            "type": "string"
        },
        "content_uri": {
            "type": "string"
        }
    },
    "required": ["path", "relative_path", "links", "owner", "group", "mode", "type", "destination", "checksum"],
    "additionalProperties": false
}