--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolfactory/galaxyxml/__init__.py	Thu Nov 19 23:59:50 2020 +0000
@@ -0,0 +1,64 @@
+from builtins import object
+from builtins import str
+
+from lxml import etree
+
+
+class GalaxyXML(object):
+    def __init__(self):
+        self.root = etree.Element("root")
+
+    def export(self):
+        return etree.tostring(self.root, pretty_print=True, encoding="unicode")
+
+
+class Util(object):
+    @classmethod
+    def coerce(cls, data, kill_lists=False):
+        """Recursive data sanitisation
+        """
+        if isinstance(data, dict):
+            return {k: cls.coerce(v, kill_lists=kill_lists) for k, v in list(data.items()) if v is not None}
+        elif isinstance(data, list):
+            if kill_lists:
+                return cls.coerce(data[0])
+            else:
+                return [cls.coerce(v, kill_lists=kill_lists) for v in data]
+        else:
+            return cls.coerce_value(data)
+
+    @classmethod
+    def coerce_value(cls, obj):
+        """Make everything a string!
+        """
+        if isinstance(obj, bool):
+            if obj:
+                return "true"
+            else:
+                return "false"
+        elif isinstance(obj, str):
+            return obj
+        else:
+            return str(obj)
+
+    @classmethod
+    def clean_kwargs(cls, params, final=False):
+        if "kwargs" in params:
+            kwargs = params["kwargs"]
+            for k in kwargs:
+                params[k] = kwargs[k]
+            del params["kwargs"]
+        if "self" in params:
+            del params["self"]
+
+        if "__class__" in params:
+            del params["__class__"]
+
+        # There will be more params, it would be NICE to use a whitelist
+        # instead of a blacklist, but until we have more data let's just
+        # blacklist stuff we see commonly.
+        if final:
+            for blacklist in ("positional",):
+                if blacklist in params:
+                    del params[blacklist]
+        return params

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolfactory/galaxyxml/tool/__init__.py	Thu Nov 19 23:59:50 2020 +0000
@@ -0,0 +1,184 @@
+import copy
+import logging
+
+from galaxyxml import GalaxyXML, Util
+from galaxyxml.tool.parameters import XMLParam
+
+from lxml import etree
+
+VALID_TOOL_TYPES = ("data_source", "data_source_async")
+VALID_URL_METHODS = ("get", "post")
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
+class Tool(GalaxyXML):
+
+    def __init__(
+        self,
+        name,
+        id,
+        version,
+        description,
+        executable,
+        hidden=False,
+        tool_type=None,
+        URL_method=None,
+        workflow_compatible=True,
+        interpreter=None,
+        version_command="interpreter filename.exe --version",
+        command_override=None,
+    ):
+
+        self.executable = executable
+        self.interpreter = interpreter
+        self.command_override = command_override
+        kwargs = {
+            "name": name,
+            "id": id,
+            "version": version,
+            "hidden": hidden,
+            "workflow_compatible": workflow_compatible,
+        }
+        self.version_command = version_command
+
+        # Remove some of the default values to make tools look a bit nicer
+        if not hidden:
+            del kwargs["hidden"]
+        if workflow_compatible:
+            del kwargs["workflow_compatible"]
+
+        kwargs = Util.coerce(kwargs)
+        self.root = etree.Element("tool", **kwargs)
+
+        if tool_type is not None:
+            if tool_type not in VALID_TOOL_TYPES:
+                raise Exception("Tool type must be one of %s" % ",".join(VALID_TOOL_TYPES))
+            else:
+                kwargs["tool_type"] = tool_type
+
+                if URL_method is not None:
+                    if URL_method in VALID_URL_METHODS:
+                        kwargs["URL_method"] = URL_method
+                    else:
+                        raise Exception("URL_method must be one of %s" % ",".join(VALID_URL_METHODS))
+
+        description_node = etree.SubElement(self.root, "description")
+        description_node.text = description
+
+    def add_comment(self, comment_txt):
+        comment = etree.Comment(comment_txt)
+        self.root.insert(0, comment)
+
+    def append_version_command(self):
+        version_command = etree.SubElement(self.root, "version_command")
+        try:
+            version_command.text = etree.CDATA(self.version_command)
+        except Exception:
+            pass
+
+    def append(self, sub_node):
+        if issubclass(type(sub_node), XMLParam):
+            self.root.append(sub_node.node)
+        else:
+            self.root.append(sub_node)
+
+    def clean_command_string(self, command_line):
+        clean = []
+        for x in command_line:
+            if x is not [] and x is not [""]:
+                clean.append(x)
+
+        return "\n".join(clean)
+
+    def export(self, keep_old_command=False):  # noqa
+
+        export_xml = copy.deepcopy(self)
+
+        try:
+            export_xml.append(export_xml.edam_operations)
+        except Exception:
+            pass
+
+        try:
+            export_xml.append(export_xml.edam_topics)
+        except Exception:
+            pass
+
+        try:
+            export_xml.append(export_xml.requirements)
+        except Exception:
+            pass
+
+        try:
+            export_xml.append(export_xml.configfiles)
+        except Exception:
+            pass
+
+        if self.command_override:
+            command_line = self.command_override
+        else:
+            command_line = []
+            try:
+                command_line.append(export_xml.inputs.cli())
+            except Exception as e:
+                logger.warning(str(e))
+
+            try:
+                command_line.append(export_xml.outputs.cli())
+            except Exception:
+                pass
+
+        # Add stdio section
+        stdio = etree.SubElement(export_xml.root, "stdio")
+        etree.SubElement(stdio, "exit_code", range="1:", level="fatal")
+
+        # Append version command
+        export_xml.append_version_command()
+
+        # Steal interpreter from kwargs
+        command_kwargs = {}
+        if export_xml.interpreter is not None:
+            command_kwargs["interpreter"] = export_xml.interpreter
+
+        # Add command section
+        command_node = etree.SubElement(export_xml.root, "command", **command_kwargs)
+
+        if keep_old_command:
+            if getattr(self, "command", None):
+                command_node.text = etree.CDATA(export_xml.command)
+            else:
+                logger.warning("The tool does not have any old command stored. " + "Only the command line is written.")
+                command_node.text = export_xml.executable
+        else:
+            if self.command_override:
+                actual_cli = export_xml.clean_command_string(command_line)
+            else:
+                actual_cli = "%s %s" % (export_xml.executable, export_xml.clean_command_string(command_line))
+            command_node.text = etree.CDATA(actual_cli.strip())
+
+        try:
+            export_xml.append(export_xml.inputs)
+        except Exception:
+            pass
+
+        try:
+            export_xml.append(export_xml.outputs)
+        except Exception:
+            pass
+
+        try:
+            export_xml.append(export_xml.tests)
+        except Exception:
+            pass
+
+        help_element = etree.SubElement(export_xml.root, "help")
+        help_element.text = etree.CDATA(export_xml.help)
+
+        try:
+            export_xml.append(export_xml.citations)
+        except Exception:
+            pass
+
+        return super(Tool, export_xml).export()

Binary file toolfactory/galaxyxml/tool/__pycache__/__init__.cpython-36.pyc has changed

Binary file toolfactory/galaxyxml/tool/__pycache__/import_xml.cpython-36.pyc has changed

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolfactory/galaxyxml/tool/import_xml.py	Thu Nov 19 23:59:50 2020 +0000
@@ -0,0 +1,713 @@
+import logging
+import xml.etree.ElementTree as ET
+
+import galaxyxml.tool as gxt
+import galaxyxml.tool.parameters as gxtp
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
+class GalaxyXmlParser(object):
+    """
+    Class to import content from an existing Galaxy XML wrapper.
+    """
+
+    def _init_tool(self, xml_root):
+        """
+        Init tool from existing xml tool.
+
+        :param xml_root: root of the galaxy xml file.
+        :type xml_root: :class:`xml.etree._Element`
+        """
+        version_cmd = None
+        description = None
+        for child in xml_root:
+            if child.tag == "description":
+                description = child.text
+            elif child.tag == "command":
+                executable = child.text.split()[0]
+                command = child.text
+            elif child.tag == "version_command":
+                version_cmd = child.text
+
+        tool = gxt.Tool(
+            xml_root.attrib["name"],
+            xml_root.attrib["id"],
+            xml_root.attrib.get("version", None),
+            description,
+            executable,
+            hidden=xml_root.attrib.get("hidden", False),
+            tool_type=xml_root.attrib.get("tool_type", None),
+            URL_method=xml_root.attrib.get("URL_method", None),
+            workflow_compatible=xml_root.attrib.get("workflow_compatible", True),
+            version_command=version_cmd,
+        )
+        tool.command = command
+        return tool
+
+    def _load_description(self, tool, desc_root):
+        """
+        <description> is already loaded during initiation.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param desc_root: root of <description> tag.
+        :type desc_root: :class:`xml.etree._Element`
+        """
+        logger.info("<description> is loaded during initiation of the object.")
+
+    def _load_version_command(self, tool, vers_root):
+        """
+        <version_command> is already loaded during initiation.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param vers_root: root of <version_command> tag.
+        :type vers_root: :class:`xml.etree._Element`
+        """
+        logger.info("<version_command> is loaded during initiation of the object.")
+
+    def _load_stdio(self, tool, stdio_root):
+        """
+        So far, <stdio> is automatically generated by galaxyxml.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param desc_root: root of <stdio> tag.
+        :type desc_root: :class:`xml.etree._Element`
+        """
+        logger.info("<stdio> is not loaded but automatically generated by galaxyxml.")
+
+    def _load_command(self, tool, desc_root):
+        """
+        <command> is already loaded during initiation.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param desc_root: root of <command> tag.
+        :type desc_root: :class:`xml.etree._Element`
+        """
+        logger.info("<command> is loaded during initiation of the object.")
+
+    def _load_help(self, tool, help_root):
+        """
+        Load the content of the <help> into the tool.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param requirements_root: root of <help> tag.
+        :type requirements_root: :class:`xml.etree._Element`
+        """
+        tool.help = help_root.text
+
+    def _load_requirements(self, tool, requirements_root):
+        """
+        Add <requirements> to the tool.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param requirements_root: root of <requirements> tag.
+        :type requirements_root: :class:`xml.etree._Element`
+        """
+        tool.requirements = gxtp.Requirements()
+        for req in requirements_root:
+            req_type = req.attrib["type"]
+            value = req.text
+            if req.tag == "requirement":
+                version = req.attrib.get("version", None)
+                tool.requirements.append(gxtp.Requirement(req_type, value, version=version))
+            elif req.tag == "container":
+                tool.requirements.append(gxtp.Container(req_type, value))
+            else:
+                logger.warning(req.tag + " is not a valid tag for requirements child")
+
+    def _load_edam_topics(self, tool, topics_root):
+        """
+        Add <edam_topics> to the tool.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param topics_root: root of <edam_topics> tag.
+        :type topics_root: :class:`xml.etree._Element`
+        """
+        tool.edam_topics = gxtp.EdamTopics()
+        for edam_topic in topics_root:
+            tool.edam_topics.append(gxtp.EdamTopic(edam_topic.text))
+
+    def _load_edam_operations(self, tool, operations_root):
+        """
+        Add <edam_operations> to the tool.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param operations_root: root of <edam_operations> tag.
+        :type operations_root: :class:`xml.etree._Element`
+        """
+        tool.edam_operations = gxtp.EdamOperations()
+        for edam_op in operations_root:
+            tool.edam_operations.append(gxtp.EdamOperation(edam_op.text))
+
+    def _load_configfiles(self, tool, configfiles_root):
+        """
+        Add <configfiles> to the tool.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param configfiles_root: root of <configfiles> tag.
+        :type configfiles_root: :class:`xml.etree._Element`
+        """
+        tool.configfiles = gxtp.Configfiles()
+        for conf in configfiles_root:
+            name = conf.attrib["name"]
+            value = conf.text
+            tool.configfiles.append(gxtp.Configfile(name, value))
+
+    def _load_citations(self, tool, citations_root):
+        """
+        Add <citations> to the tool.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param citations_root: root of <citations> tag.
+        :type citations_root: :class:`xml.etree._Element`
+        """
+        tool.citations = gxtp.Citations()
+        for cit in citations_root:
+            cit_type = cit.attrib["type"]
+            value = cit.text
+            tool.citations.append(gxtp.Citation(cit_type, value))
+
+    def _load_inputs(self, tool, inputs_root):
+        """
+        Add <inputs> to the tool using the :class:`galaxyxml.tool.import_xml.InputsParser` object.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param inputs_root: root of <inputs> tag.
+        :type inputs_root: :class:`xml.etree._Element`
+        """
+        tool.inputs = gxtp.Inputs()
+        inp_parser = InputsParser()
+        inp_parser.load_inputs(tool.inputs, inputs_root)
+
+    def _load_outputs(self, tool, outputs_root):
+        """
+        Add <outputs> to the tool using the :class:`galaxyxml.tool.import_xml.OutputsParser` object.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param outputs_root: root of <outputs> tag.
+        :type outputs_root: :class:`xml.etree._Element`
+        """
+        tool.outputs = gxtp.Outputs()
+        out_parser = OutputsParser()
+        out_parser.load_outputs(tool.outputs, outputs_root)
+
+    def _load_tests(self, tool, tests_root):
+        """
+        Add <tests> to the tool using the :class:`galaxyxml.tool.import_xml.TestsParser` object.
+
+        :param tool: Tool object from galaxyxml.
+        :type tool: :class:`galaxyxml.tool.Tool`
+        :param tests_root: root of <tests> tag.
+        :type tests_root: :class:`xml.etree._Element`
+        """
+        tool.tests = gxtp.Tests()
+        tests_parser = TestsParser()
+        tests_parser.load_tests(tool.tests, tests_root)
+
+    def import_xml(self, xml_path):
+        """
+        Load existing xml into the :class:`galaxyxml.tool.Tool` object.
+
+        :param xml_path: Path of the XML to be loaded.
+        :type xml_path: STRING
+        :return: XML content in the galaxyxml model.
+        :rtype: :class:`galaxyxml.tool.Tool`
+        """
+        xml_root = ET.parse(xml_path).getroot()
+        tool = self._init_tool(xml_root)
+        # Now we import each tag's field
+        for child in xml_root:
+            try:
+                getattr(self, "_load_{}".format(child.tag))(tool, child)
+            except AttributeError:
+                logger.warning(child.tag + " tag is not processed.")
+        return tool
+
+
+class InputsParser(object):
+    """
+    Class to parse content of the <inputs> tag from a Galaxy XML wrapper.
+    """
+
+    def _load_text_param(self, root, text_param):
+        """
+        Add <param type="text" /> to the root.
+
+        :param root: root to append the param to.
+        :param text_param: root of <param> tag.
+        :type text_param: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.TextParam(
+                text_param.attrib["name"],
+                optional=text_param.get("optional", None),
+                label=text_param.get("label", None),
+                help=text_param.get("help", None),
+                value=text_param.get("value", None),
+            )
+        )
+
+    def _load_data_param(self, root, data_param):
+        """
+        Add <param type="data" /> to the root.
+
+        :param root: root to append the param to.
+        :param data_param: root of <param> tag.
+        :type data_param: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.DataParam(
+                data_param.attrib["name"],
+                optional=data_param.attrib.get("optional", None),
+                label=data_param.attrib.get("label", None),
+                help=data_param.attrib.get("help", None),
+                format=data_param.attrib.get("format", None),
+                multiple=data_param.attrib.get("multiple", None),
+            )
+        )
+
+    def _load_boolean_param(self, root, bool_param):
+        """
+        Add <param type="boolean" /> to the root.
+
+        :param root: root to append the param to.
+        :param bool_param: root of <param> tag.
+        :type bool_param: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.BooleanParam(
+                bool_param.attrib["name"],
+                optional=bool_param.attrib.get("optional", None),
+                label=bool_param.attrib.get("label", None),
+                help=bool_param.attrib.get("help", None),
+                checked=bool_param.attrib.get("checked", False),
+                truevalue=bool_param.attrib.get("truevalue", None),
+                falsevalue=bool_param.attrib.get("falsevalue", None),
+            )
+        )
+
+    def _load_integer_param(self, root, int_param):
+        """
+        Add <param type="integer" /> to the root.
+
+        :param root: root to append the param to.
+        :param int_param: root of <param> tag.
+        :type int_param: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.IntegerParam(
+                int_param.attrib["name"],
+                int_param.attrib.get("value", None),
+                optional=int_param.attrib.get("optional", None),
+                label=int_param.attrib.get("label", None),
+                help=int_param.attrib.get("help", None),
+                min=int_param.attrib.get("min", None),
+                max=int_param.attrib.get("max", None),
+            )
+        )
+
+    def _load_float_param(self, root, float_param):
+        """
+        Add <param type="float" /> to the root.
+
+        :param root: root to append the param to.
+        :param float_param: root of <param> tag.
+        :type float_param: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.FloatParam(
+                float_param.attrib["name"],
+                float_param.attrib.get("value", None),
+                optional=float_param.attrib.get("optional", None),
+                label=float_param.attrib.get("label", None),
+                help=float_param.attrib.get("help", None),
+                min=float_param.attrib.get("min", None),
+                max=float_param.attrib.get("max", None),
+            )
+        )
+
+    def _load_option_select(self, root, option):
+        """
+        Add <option> to the root (usually <param type="select" />).
+
+        :param root: root to append the param to.
+        :param option: root of <option> tag.
+        :type float_param: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.SelectOption(
+                option.attrib.get("value", None), option.text, selected=option.attrib.get("selected", False)
+            )
+        )
+
+    def _load_column_options(self, root, column):
+        """
+        Add <column> to the root (usually <options>).
+
+        :param root: root to append the param to.
+        :param option: root of <column> tag.
+        :type float_param: :class:`xml.etree._Element`
+        """
+        root.append(gxtp.Column(column.attrib["name"], column.attrib["index"]))
+
+    def _load_filter_options(self, root, filter):
+        """
+        Add <filter> to the root (usually <options>).
+
+        :param root: root to append the param to.
+        :param option: root of <filter> tag.
+        :type float_param: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.Filter(
+                filter.attrib["type"],
+                column=filter.attrib.get("column", None),
+                name=filter.attrib.get("name", None),
+                ref=filter.attrib.get("ref", None),
+                key=filter.attrib.get("key", None),
+                multiple=filter.attrib.get("multiple", None),
+                separator=filter.attrib.get("separator", None),
+                keep=filter.attrib.get("keep", None),
+                value=filter.attrib.get("value", None),
+                ref_attribute=filter.attrib.get("ref_attribute", None),
+                index=filter.attrib.get("index", None),
+            )
+        )
+
+    def _load_options_select(self, root, options):
+        """
+        Add <options> to the root (usually <param type="select" />).
+
+        :param root: root to append the param to.
+        :param option: root of <options> tag.
+        :type float_param: :class:`xml.etree._Element`
+        """
+        opts = gxtp.Options(
+            from_dataset=options.attrib.get("from_dataset", None),
+            from_file=options.attrib.get("from_file", None),
+            from_data_table=options.attrib.get("from_data_table", None),
+            from_parameter=options.attrib.get("from_parameter", None),
+        )
+        # Deal with child nodes (usually filter and column)
+        for opt_child in options:
+            try:
+                getattr(self, "_load_{}_options".format(opt_child.tag))(opts, opt_child)
+            except AttributeError:
+                logger.warning(opt_child.tag + " tag is not processed for <options>.")
+        root.append(opts)
+
+    def _load_select_param(self, root, sel_param):
+        """
+        Add <param type="select" /> to the root.
+
+        :param root: root to append the param to.
+        :param sel_param: root of <param> tag.
+        :type sel_param: :class:`xml.etree._Element`
+        """
+        select_param = gxtp.SelectParam(
+            sel_param.attrib["name"],
+            optional=sel_param.attrib.get("optional", None),
+            label=sel_param.attrib.get("label", None),
+            help=sel_param.attrib.get("help", None),
+            data_ref=sel_param.attrib.get("data_ref", None),
+            display=sel_param.attrib.get("display", None),
+            multiple=sel_param.attrib.get("multiple", None),
+        )
+        # Deal with child nodes (usually option and options)
+        for sel_child in sel_param:
+            try:
+                getattr(self, "_load_{}_select".format(sel_child.tag))(select_param, sel_child)
+            except AttributeError:
+                logger.warning(sel_child.tag + " tag is not processed for <param type='select'>.")
+        root.append(select_param)
+
+    def _load_param(self, root, param_root):
+        """
+        Method to select which type of <param> is being added to the root.
+
+        :param root: root to attach param to.
+        :param param_root: root of <param> tag.
+        :type param_root: :class:`xml.etree._Element`
+        """
+        param_type = param_root.attrib["type"]
+        try:
+            getattr(self, "_load_{}_param".format(param_type))(root, param_root)
+        except AttributeError:
+            logger.warning(param_type + " tag is not processed for <param>.")
+
+    def _load_when(self, root, when_root):
+        """
+        Add <when> to the root (usually <conditional>).
+
+        :param root: root to append when to.
+        :param when_root: root of <when> tag.
+        :type when_root: :class:`xml.etree._Element`
+        """
+        when = gxtp.When(when_root.attrib["value"])
+        # Deal with child nodes
+        self.load_inputs(when, when_root)
+        root.append(when)
+
+    def _load_conditional(self, root, conditional_root):
+        """
+        Add <conditional> to the root.
+
+        :param root: root to append conditional to.
+        :param conditional_root: root of <conditional> tag.
+        :type conditional_root: :class:`xml.etree._Element`
+        """
+        value_ref_in_group = conditional_root.attrib.get("value_ref_in_group", None)
+        # Other optional parameters need to be added to conditional object
+        conditional = gxtp.Conditional(
+            conditional_root.attrib["name"],
+            value_from=conditional_root.attrib.get("value_from", None),
+            value_ref=conditional_root.attrib.get("value_ref", None),
+            value_ref_in_group=value_ref_in_group,
+            label=conditional_root.attrib.get("label", None),
+        )
+        # Deal with child nodes
+        self.load_inputs(conditional, conditional_root)
+        root.append(conditional)
+
+    def _load_section(self, root, section_root):
+        """
+        Add <section> to the root.
+
+        :param root: root to append conditional to.
+        :param section_root: root of <section> tag.
+        :type section_root: :class:`xml.etree._Element`
+        """
+        section = gxtp.Section(
+            section_root.attrib["name"],
+            section_root.attrib["title"],
+            expanded=section_root.attrib.get("expanded", None),
+            help=section_root.attrib.get("help", None),
+        )
+        # Deal with child nodes
+        self.load_inputs(section, section_root)
+        root.append(section)
+
+    def _load_repeat(self, root, repeat_root):
+        """
+        Add <repeat> to the root.
+
+        :param root: root to append repeat to.
+        :param repeat_root: root of <repeat> tag.
+        :param repeat_root: :class:`xml.etree._Element`
+        """
+        repeat = gxtp.Repeat(
+            repeat_root.attrib["name"],
+            repeat_root.attrib["title"],
+            min=repeat_root.attrib.get("min", None),
+            max=repeat_root.attrib.get("max", None),
+            default=repeat_root.attrib.get("default", None),
+        )
+        # Deal with child nodes
+        self.load_inputs(repeat, repeat_root)
+        root.append(repeat)
+
+    def load_inputs(self, root, inputs_root):
+        """
+        Add <inputs.tag> to the root (it can be any tags with children such as
+        <inputs>, <repeat>, <section> ...)
+
+        :param root: root to attach inputs to (either <inputs> or <when>).
+        :param inputs_root: root of <inputs> tag.
+        :type inputs_root: :class:`xml.etree._Element`
+        """
+        for inp_child in inputs_root:
+            try:
+                getattr(self, "_load_{}".format(inp_child.tag))(root, inp_child)
+            except AttributeError:
+                logger.warning(inp_child.tag + " tag is not processed for <" + inputs_root.tag + "> tag.")
+
+
+class OutputsParser(object):
+    """
+    Class to parse content of the <outputs> tag from a Galaxy XML wrapper.
+    """
+
+    def _load_data(self, outputs_root, data_root):
+        """
+        Add <data> to <outputs>.
+
+        :param outputs_root: <outputs> root to append <data> to.
+        :param data_root: root of <data> tag.
+        :param data_root: :class:`xml.etree._Element`
+        """
+        data = gxtp.OutputData(
+            data_root.attrib.get("name", None),
+            data_root.attrib.get("format", None),
+            format_source=data_root.attrib.get("format_source", None),
+            metadata_source=data_root.attrib.get("metadata_source", None),
+            label=data_root.attrib.get("label", None),
+            from_work_dir=data_root.attrib.get("from_work_dir", None),
+            hidden=data_root.attrib.get("hidden", False),
+        )
+        # Deal with child nodes
+        for data_child in data_root:
+            try:
+                getattr(self, "_load_{}".format(data_child.tag))(data, data_child)
+            except AttributeError:
+                logger.warning(data_child.tag + " tag is not processed for <data>.")
+        outputs_root.append(data)
+
+    def _load_change_format(self, root, chfmt_root):
+        """
+        Add <change_format> to root (<data>).
+
+        :param root: root to append <change_format> to.
+        :param chfm_root: root of <change_format> tag.
+        :param chfm_root: :class:`xml.etree._Element`
+        """
+        change_format = gxtp.ChangeFormat()
+        for chfmt_child in chfmt_root:
+            change_format.append(
+                gxtp.ChangeFormatWhen(
+                    chfmt_child.attrib["input"], chfmt_child.attrib["format"], chfmt_child.attrib["value"]
+                )
+            )
+        root.append(change_format)
+
+    def _load_collection(self, outputs_root, coll_root):
+        """
+        Add <collection> to <outputs>.
+
+        :param outputs_root: <outputs> root to append <collection> to.
+        :param coll_root: root of <collection> tag.
+        :param coll_root: :class:`xml.etree._Element`
+        """
+        collection = gxtp.OutputCollection(
+            coll_root.attrib["name"],
+            type=coll_root.attrib.get("type", None),
+            label=coll_root.attrib.get("label", None),
+            format_source=coll_root.attrib.get("format_source", None),
+            type_source=coll_root.attrib.get("type_source", None),
+            structured_like=coll_root.attrib.get("structured_like", None),
+            inherit_format=coll_root.attrib.get("inherit_format", None),
+        )
+        # Deal with child nodes
+        for coll_child in coll_root:
+            try:
+                getattr(self, "_load_{}".format(coll_child.tag))(collection, coll_child)
+            except AttributeError:
+                logger.warning(coll_child.tag + " tag is not processed for <collection>.")
+        outputs_root.append(collection)
+
+    def _load_discover_datasets(self, root, disc_root):
+        """
+        Add <discover_datasets> to root (<collection>).
+
+        :param root: root to append <collection> to.
+        :param disc_root: root of <discover_datasets> tag.
+        :param disc_root: :class:`xml.etree._Element`
+        """
+        root.append(
+            gxtp.DiscoverDatasets(
+                disc_root.attrib["pattern"],
+                directory=disc_root.attrib.get("directory", None),
+                format=disc_root.attrib.get("format", None),
+                ext=disc_root.attrib.get("ext", None),
+                visible=disc_root.attrib.get("visible", None),
+            )
+        )
+
+    def _load_filter(self, root, filter_root):
+        """
+        Add <filter> to root (<collection> or <data>).
+
+        :param root: root to append <collection> to.
+        :param coll_root: root of <filter> tag.
+        :param coll_root: :class:`xml.etree._Element`
+        """
+        root.append(gxtp.OutputFilter(filter_root.text))
+
+    def load_outputs(self, root, outputs_root):
+        """
+        Add <outputs> to the root.
+
+        :param root: root to attach <outputs> to (<tool>).
+        :param tests_root: root of <outputs> tag.
+        :type tests_root: :class:`xml.etree._Element`
+        """
+        for out_child in outputs_root:
+            try:
+                getattr(self, "_load_{}".format(out_child.tag))(root, out_child)
+            except AttributeError:
+                logger.warning(out_child.tag + " tag is not processed for <outputs>.")
+
+
+class TestsParser(object):
+    """
+    Class to parse content of the <tests> tag from a Galaxy XML wrapper.
+    """
+
+    def _load_param(self, test_root, param_root):
+        """
+        Add <param> to the <test>.
+
+        :param root: <test> root to append <param> to.
+        :param repeat_root: root of <param> tag.
+        :param repeat_root: :class:`xml.etree._Element`
+        """
+        test_root.append(
+            gxtp.TestParam(
+                param_root.attrib["name"],
+                value=param_root.attrib.get("value", None),
+                ftype=param_root.attrib.get("ftype", None),
+                dbkey=param_root.attrib.get("dbkey", None),
+            )
+        )
+
+    def _load_output(self, test_root, output_root):
+        """
+        Add <output> to the <test>.
+
+        :param root: <test> root to append <output> to.
+        :param repeat_root: root of <output> tag.
+        :param repeat_root: :class:`xml.etree._Element`
+        """
+        test_root.append(
+            gxtp.TestOutput(
+                name=output_root.attrib.get("name", None),
+                file=output_root.attrib.get("file", None),
+                ftype=output_root.attrib.get("ftype", None),
+                sort=output_root.attrib.get("sort", None),
+                value=output_root.attrib.get("value", None),
+                md5=output_root.attrib.get("md5", None),
+                checksum=output_root.attrib.get("checksum", None),
+                compare=output_root.attrib.get("compare", None),
+                lines_diff=output_root.attrib.get("lines_diff", None),
+                delta=output_root.attrib.get("delta", None),
+            )
+        )
+
+    def load_tests(self, root, tests_root):
+        """
+        Add <tests> to the root.
+
+        :param root: root to attach <tests> to (<tool>).
+        :param tests_root: root of <tests> tag.
+        :type tests_root: :class:`xml.etree._Element`
+        """
+        for test_root in tests_root:
+            test = gxtp.Test()
+            for test_child in test_root:
+                try:
+                    getattr(self, "_load_{}".format(test_child.tag))(test, test_child)
+                except AttributeError:
+                    logger.warning(test_child.tag + " tag is not processed within <test>.")
+            root.append(test)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolfactory/galaxyxml/tool/parameters/__init__.py	Thu Nov 19 23:59:50 2020 +0000
@@ -0,0 +1,739 @@
+from builtins import object
+from builtins import str
+
+from galaxyxml import Util
+
+from lxml import etree
+
+
+
+class XMLParam(object):
+    name = "node"
+
+    def __init__(self, *args, **kwargs):
+        # http://stackoverflow.com/a/12118700
+        self.children = []
+        kwargs = {k: v for k, v in list(kwargs.items()) if v is not None}
+        kwargs = Util.coerce(kwargs, kill_lists=True)
+        kwargs = Util.clean_kwargs(kwargs, final=True)
+        self.node = etree.Element(self.name, **kwargs)
+
+    def append(self, sub_node):
+        if self.acceptable_child(sub_node):
+            # If one of ours, they aren't etree nodes, they're custom objects
+            if issubclass(type(sub_node), XMLParam):
+                self.node.append(sub_node.node)
+                self.children.append(sub_node)
+            else:
+                raise Exception(
+                    "Child was unacceptable to parent (%s is not appropriate for %s)" % (type(self), type(sub_node))
+                )
+        else:
+            raise Exception(
+                "Child was unacceptable to parent (%s is not appropriate for %s)" % (type(self), type(sub_node))
+            )
+
+    def validate(self):
+        # Very few need validation, but some nodes we may want to have
+        # validation routines on. Should only be called when DONE.
+        for child in self.children:
+            # If any child fails to validate return false.
+            if not child.validate():
+                return False
+        return True
+
+    def cli(self):
+        lines = []
+        for child in self.children:
+            lines.append(child.command_line())
+            # lines += child.command_line()
+        return "\n".join(lines)
+
+    def command_line(self):
+        return None
+
+
+class RequestParamTranslation(XMLParam):
+    name = "request_param_translation"
+
+    def __init__(self, **kwargs):
+        self.node = etree.Element(self.name)
+
+    def acceptable_child(self, child):
+        return isinstance(child, RequestParamTranslation)
+
+
+class RequestParam(XMLParam):
+    name = "request_param"
+
+    def __init__(self, galaxy_name, remote_name, missing, **kwargs):
+        # TODO: bulk copy locals into self.attr?
+        self.galaxy_name = galaxy_name
+        # http://stackoverflow.com/a/1408860
+        params = Util.clean_kwargs(locals().copy())
+        super(RequestParam, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return isinstance(child, AppendParam) and self.galaxy_name == "URL"
+
+
+class AppendParam(XMLParam):
+    name = "append_param"
+
+    def __init__(self, separator="&", first_separator="?", join="=", **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(AppendParam, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return isinstance(child, AppendParamValue)
+
+
+class AppendParamValue(XMLParam):
+    name = "value"
+
+    def __init__(self, name="_export", missing="1", **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(AppendParamValue, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return False
+
+
+class EdamOperations(XMLParam):
+    name = "edam_operations"
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), EdamOperation)
+
+    def has_operation(self, edam_operation):
+        """
+        Check the presence of a given edam_operation.
+
+        :type edam_operation: STRING
+        """
+        for operation in self.children:
+            if operation.node.text == edam_operation:
+                return True
+        return False
+
+
+class EdamOperation(XMLParam):
+    name = "edam_operation"
+
+    def __init__(self, value):
+        super(EdamOperation, self).__init__()
+        self.node.text = str(value)
+
+
+class EdamTopics(XMLParam):
+    name = "edam_topics"
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), EdamTopic)
+
+    def has_topic(self, edam_topic):
+        """
+        Check the presence of a given edam_topic.
+
+        :type edam_topic: STRING
+        """
+        for topic in self.children:
+            if topic.node.text == edam_topic:
+                return True
+        return False
+
+
+class EdamTopic(XMLParam):
+    name = "edam_topic"
+
+    def __init__(self, value):
+        super(EdamTopic, self).__init__()
+        self.node.text = str(value)
+
+
+class Requirements(XMLParam):
+    name = "requirements"
+    # This bodes to be an issue -__-
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), Requirement) or issubclass(type(child), Container)
+
+
+class Requirement(XMLParam):
+    name = "requirement"
+
+    def __init__(self, type, value, version=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        passed_kwargs = {}
+        passed_kwargs["version"] = params["version"]
+        passed_kwargs["type"] = params["type"]
+        super(Requirement, self).__init__(**passed_kwargs)
+        self.node.text = str(value)
+
+
+class Container(XMLParam):
+    name = "container"
+
+    def __init__(self, type, value, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        passed_kwargs = {}
+        passed_kwargs["type"] = params["type"]
+        super(Container, self).__init__(**passed_kwargs)
+        self.node.text = str(value)
+
+
+class Configfiles(XMLParam):
+    name = "configfiles"
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), Configfile) or issubclass(type(child), ConfigfileDefaultInputs)
+
+
+class Configfile(XMLParam):
+    name = "configfile"
+
+    def __init__(self, name, text, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        passed_kwargs = {}
+        passed_kwargs["name"] = params["name"]
+        super(Configfile, self).__init__(**passed_kwargs)
+        self.node.text = etree.CDATA(str(text))
+
+
+class ConfigfileDefaultInputs(XMLParam):
+    name = "inputs"
+
+    def __init__(self, name, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        passed_kwargs = {}
+        passed_kwargs["name"] = params["name"]
+        super(ConfigfileDefaultInputs, self).__init__(**passed_kwargs)
+
+
+class Inputs(XMLParam):
+    name = "inputs"
+    # This bodes to be an issue -__-
+
+    def __init__(self, action=None, check_value=None, method=None, target=None, nginx_upload=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(Inputs, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), InputParameter)
+
+
+class InputParameter(XMLParam):
+    def __init__(self, name, **kwargs):
+        # TODO: look at
+        self.mako_identifier = name
+        # We use kwargs instead of the usual locals(), so manually copy the
+        # name to kwargs
+        if name is not None:
+            kwargs["name"] = name
+
+        # Handle positional parameters
+        if "positional" in kwargs and kwargs["positional"]:
+            self.positional = True
+        else:
+            self.positional = False
+
+        if "num_dashes" in kwargs:
+            self.num_dashes = kwargs["num_dashes"]
+            del kwargs["num_dashes"]
+        else:
+            self.num_dashes = 0
+
+        self.space_between_arg = " "
+
+        # Not sure about this :(
+        # https://wiki.galaxyproject.org/Tools/BestPractices#Parameter_help
+        if "label" in kwargs:
+            # TODO: replace with positional attribute
+            if len(self.flag()) > 0:
+                if kwargs["label"] is None:
+                    kwargs["label"] = "Author did not provide help for this parameter... "
+                if not self.positional:
+                    kwargs["argument"] = self.flag()
+
+        super(InputParameter, self).__init__(**kwargs)
+
+    def command_line(self):
+        before = self.command_line_before()
+        cli = self.command_line_actual()
+        after = self.command_line_after()
+
+        complete = [x for x in (before, cli, after) if x is not None]
+        return "\n".join(complete)
+
+    def command_line_before(self):
+        try:
+            return self.command_line_before_override
+        except Exception:
+            return None
+
+    def command_line_after(self):
+        try:
+            return self.command_line_after_override
+        except Exception:
+            return None
+
+    def command_line_actual(self):
+        try:
+            return self.command_line_override
+        except Exception:
+            if self.positional:
+                return self.mako_name()
+            else:
+                return "%s%s%s" % (self.flag(), self.space_between_arg, self.mako_name())
+
+    def mako_name(self):
+        # TODO: enhance logic to check up parents for things like
+        # repeat>condotion>param
+        return "$" + self.mako_identifier
+
+    def flag(self):
+        flag = "-" * self.num_dashes
+        return flag + self.mako_identifier
+
+
+class Section(InputParameter):
+    name = "section"
+
+    def __init__(self, name, title, expanded=None, help=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(Section, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), InputParameter)
+
+
+class Repeat(InputParameter):
+    name = "repeat"
+
+    def __init__(self, name, title, min=None, max=None, default=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        # Allow overriding
+        self.command_line_before_override = "#for $i in $%s:" % name
+        self.command_line_after_override = "#end for"
+        # self.command_line_override
+        super(Repeat, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), InputParameter)
+
+    def command_line_actual(self):
+        if hasattr(self, "command_line_override"):
+            return self.command_line_override
+        else:
+            return "%s" % self.mako_name()
+
+
+class Conditional(InputParameter):
+    name = "conditional"
+
+    def __init__(self, name, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(Conditional, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), InputParameter) and not isinstance(child, Conditional)
+
+    def validate(self):
+        # Find a way to check if one of the kids is a WHEN
+        pass
+
+
+class When(InputParameter):
+    name = "when"
+
+    def __init__(self, value):
+        params = Util.clean_kwargs(locals().copy())
+        super(When, self).__init__(None, **params)
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), InputParameter)
+
+
+class Param(InputParameter):
+    name = "param"
+
+    # This...isn't really valid as-is, and shouldn't be used.
+    def __init__(self, name, optional=None, label=None, help=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        params["type"] = self.type
+        super(Param, self).__init__(**params)
+
+        if type(self) == Param:
+            raise Exception("Param class is not an actual parameter type, use a subclass of Param")
+
+    def acceptable_child(self, child):
+        return issubclass(type(child, InputParameter) or isinstance(child), ValidatorParam)
+
+
+class TextParam(Param):
+    type = "text"
+
+    def __init__(self, name, optional=None, label=None, help=None, value=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(TextParam, self).__init__(**params)
+
+    def command_line_actual(self):
+        try:
+            return self.command_line_override
+        except Exception:
+            if self.positional:
+                return self.mako_name()
+            else:
+                return f"{self.flag}{self.space_between_arg}'{self.mako_name()}'"
+
+
+class _NumericParam(Param):
+    def __init__(self, name, value, optional=None, label=None, help=None, min=None, max=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(_NumericParam, self).__init__(**params)
+
+
+class IntegerParam(_NumericParam):
+    type = "integer"
+
+
+class FloatParam(_NumericParam):
+    type = "float"
+
+
+class BooleanParam(Param):
+    type = "boolean"
+
+    def __init__(
+        self, name, optional=None, label=None, help=None, checked=False, truevalue=None, falsevalue=None, **kwargs
+    ):
+        params = Util.clean_kwargs(locals().copy())
+
+        super(BooleanParam, self).__init__(**params)
+        if truevalue is None:
+            # If truevalue and falsevalue are None, then we use "auto", the IUC
+            # recommended default.
+            #
+            # truevalue is set to the parameter's value, and falsevalue is not.
+            #
+            # Unfortunately, mako_identifier is set as a result of the super
+            # call, which we shouldn't call TWICE, so we'll just hack around this :(
+            # params['truevalue'] = '%s%s' % (self.)
+            self.node.attrib["truevalue"] = self.flag()
+
+        if falsevalue is None:
+            self.node.attrib["falsevalue"] = ""
+
+    def command_line_actual(self):
+        if hasattr(self, "command_line_override"):
+            return self.command_line_override
+        else:
+            return "%s" % self.mako_name()
+
+
+class DataParam(Param):
+    type = "data"
+
+    def __init__(self, name, optional=None, label=None, help=None, format=None, multiple=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(DataParam, self).__init__(**params)
+
+
+class SelectParam(Param):
+    type = "select"
+
+    def __init__(
+        self,
+        name,
+        optional=None,
+        label=None,
+        help=None,
+        data_ref=None,
+        display=None,
+        multiple=None,
+        options=None,
+        default=None,
+        **kwargs
+    ):
+        params = Util.clean_kwargs(locals().copy())
+        del params["options"]
+        del params["default"]
+
+        super(SelectParam, self).__init__(**params)
+
+        if options is not None and default is not None:
+            if default not in options:
+                raise Exception("Specified a default that isn't in options")
+
+        if options:
+            for k, v in list(sorted(options.items())):
+                selected = k == default
+                self.append(SelectOption(k, v, selected=selected))
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), SelectOption) or issubclass(type(child), Options)
+
+
+class SelectOption(InputParameter):
+    name = "option"
+
+    def __init__(self, value, text, selected=False, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+
+        passed_kwargs = {}
+        if selected:
+            passed_kwargs["selected"] = "true"
+        passed_kwargs["value"] = params["value"]
+
+        super(SelectOption, self).__init__(None, **passed_kwargs)
+        self.node.text = str(text)
+
+
+class Options(InputParameter):
+    name = "options"
+
+    def __init__(self, from_dataset=None, from_file=None, from_data_table=None, from_parameter=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(Options, self).__init__(None, **params)
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), Column) or issubclass(type(child), Filter)
+
+
+class Column(InputParameter):
+    name = "column"
+
+    def __init__(self, name, index, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(Column, self).__init__(**params)
+
+
+class Filter(InputParameter):
+    name = "filter"
+
+    def __init__(
+        self,
+        type,
+        column=None,
+        name=None,
+        ref=None,
+        key=None,
+        multiple=None,
+        separator=None,
+        keep=None,
+        value=None,
+        ref_attribute=None,
+        index=None,
+        **kwargs
+    ):
+        params = Util.clean_kwargs(locals().copy())
+        super(Filter, self).__init__(**params)
+
+
+class ValidatorParam(InputParameter):
+    name = "validator"
+
+    def __init__(
+        self,
+        type,
+        message=None,
+        filename=None,
+        metadata_name=None,
+        metadata_column=None,
+        line_startswith=None,
+        min=None,
+        max=None,
+        **kwargs
+    ):
+        params = Util.clean_kwargs(locals().copy())
+        super(ValidatorParam, self).__init__(**params)
+
+
+class Outputs(XMLParam):
+    name = "outputs"
+
+    def acceptable_child(self, child):
+        return isinstance(child, OutputData) or isinstance(child, OutputCollection)
+
+
+class OutputData(XMLParam):
+    """Copypasta of InputParameter, needs work
+    """
+
+    name = "data"
+
+    def __init__(
+        self,
+        name,
+        format,
+        format_source=None,
+        metadata_source=None,
+        label=None,
+        from_work_dir=None,
+        hidden=False,
+        **kwargs
+    ):
+        # TODO: validate format_source&metadata_source against something in the
+        # XMLParam children tree.
+        self.mako_identifier = name
+        if "num_dashes" in kwargs:
+            self.num_dashes = kwargs["num_dashes"]
+            del kwargs["num_dashes"]
+        else:
+            self.num_dashes = 0
+        self.space_between_arg = " "
+        params = Util.clean_kwargs(locals().copy())
+
+        super(OutputData, self).__init__(**params)
+
+    def command_line(self):
+        if hasattr(self, "command_line_override"):
+            return self.command_line_override
+        else:
+            return "%s%s%s" % (self.flag(), self.space_between_arg, self.mako_name())
+
+    def mako_name(self):
+        return "$" + self.mako_identifier
+
+    def flag(self):
+        flag = "-" * self.num_dashes
+        return flag + self.mako_identifier
+
+    def acceptable_child(self, child):
+        return isinstance(child, OutputFilter) or isinstance(child, ChangeFormat) or isinstance(child, DiscoverDatasets)
+
+
+class OutputFilter(XMLParam):
+    name = "filter"
+
+    def __init__(self, text, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        del params["text"]
+        super(OutputFilter, self).__init__(**params)
+        self.node.text = text
+
+    def acceptable_child(self, child):
+        return False
+
+
+class ChangeFormat(XMLParam):
+    name = "change_format"
+
+    def __init__(self, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(ChangeFormat, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return isinstance(child, ChangeFormatWhen)
+
+
+class ChangeFormatWhen(XMLParam):
+    name = "when"
+
+    def __init__(self, input, format, value, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(ChangeFormatWhen, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return False
+
+
+class OutputCollection(XMLParam):
+    name = "collection"
+
+    def __init__(
+        self,
+        name,
+        type=None,
+        label=None,
+        format_source=None,
+        type_source=None,
+        structured_like=None,
+        inherit_format=None,
+        **kwargs
+    ):
+        params = Util.clean_kwargs(locals().copy())
+        super(OutputCollection, self).__init__(**params)
+
+    def acceptable_child(self, child):
+        return isinstance(child, OutputData) or isinstance(child, OutputFilter) or isinstance(child, DiscoverDatasets)
+
+
+class DiscoverDatasets(XMLParam):
+    name = "discover_datasets"
+
+    def __init__(self, pattern, directory=None, format=None, ext=None, visible=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(DiscoverDatasets, self).__init__(**params)
+
+
+class Tests(XMLParam):
+    name = "tests"
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), Test)
+
+
+class Test(XMLParam):
+    name = "test"
+
+    def acceptable_child(self, child):
+        return isinstance(child, TestParam) or isinstance(child, TestOutput)
+
+
+class TestParam(XMLParam):
+    name = "param"
+
+    def __init__(self, name, value=None, ftype=None, dbkey=None, **kwargs):
+        params = Util.clean_kwargs(locals().copy())
+        super(TestParam, self).__init__(**params)
+
+
+class TestOutput(XMLParam):
+    name = "output"
+
+    def __init__(
+        self,
+        name=None,
+        file=None,
+        ftype=None,
+        sort=None,
+        value=None,
+        md5=None,
+        checksum=None,
+        compare=None,
+        lines_diff=None,
+        delta=None,
+        **kwargs
+    ):
+        params = Util.clean_kwargs(locals().copy())
+        super(TestOutput, self).__init__(**params)
+
+
+class Citations(XMLParam):
+    name = "citations"
+
+    def acceptable_child(self, child):
+        return issubclass(type(child), Citation)
+
+    def has_citation(self, type, value):
+        """
+        Check the presence of a given citation.
+
+        :type type: STRING
+        :type value: STRING
+        """
+        for citation in self.children:
+            if citation.node.attrib["type"] == type and citation.node.text == value:
+                return True
+        return False
+
+
+class Citation(XMLParam):
+    name = "citation"
+
+    def __init__(self, type, value):
+        passed_kwargs = {}
+        passed_kwargs["type"] = type
+        super(Citation, self).__init__(**passed_kwargs)
+        self.node.text = str(value)

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