Source code for galaxy.dependencies

"""
Determine what optional dependencies are needed.
"""

import sys
from os.path import dirname, exists, join

import pkg_resources
import yaml

from galaxy.containers import parse_containers_config
from galaxy.util import (
    asbool,
    etree,
    parse_xml,
    which,
)
from galaxy.util.properties import (
    find_config_file,
    load_app_properties
)


[docs]class ConditionalDependencies:
[docs]    def __init__(self, config_file, config=None):
        self.config_file = config_file
        self.job_runners = []
        self.authenticators = []
        self.object_stores = []
        self.file_sources = []
        self.conditional_reqs = []
        self.container_interface_types = []
        self.job_rule_modules = []
        self.error_report_modules = []
        if config is None:
            self.config = load_app_properties(config_file=self.config_file)
        else:
            self.config = config
        self.parse_configs()
        self.get_conditional_requirements()

[docs]    def parse_configs(self):

        def load_job_config_dict(job_conf_dict):
            for runner in job_conf_dict.get("runners"):
                if "load" in runner:
                    self.job_runners.append(runner.get("load"))
                if "rules_module" in runner:
                    self.job_rule_modules.append(plugin.text)
                if "params" in runner:
                    runner_params = runner["params"]
                    if "rules_module" in runner_params:
                        self.job_rule_modules.append(plugin.text)

        if "job_config" in self.config:
            load_job_config_dict(self.config.get("job_config"))
        else:
            job_conf_path = self.config.get(
                "job_config_file",
                join(dirname(self.config_file), 'job_conf.xml'))
            if '.xml' in job_conf_path:
                try:
                    try:
                        for plugin in parse_xml(job_conf_path).find('plugins').findall('plugin'):
                            if 'load' in plugin.attrib:
                                self.job_runners.append(plugin.attrib['load'])
                    except OSError:
                        pass
                    try:
                        for plugin in parse_xml(job_conf_path).findall('.//destination/param[@id="rules_module"]'):
                            self.job_rule_modules.append(plugin.text)
                    except OSError:
                        pass
                except etree.ParseError:
                    pass
            else:
                try:
                    with open("job_conf_path") as f:
                        job_conf_dict = yaml.safe_load(f)
                    load_job_config_dict(job_conf_dict)
                except OSError:
                    pass

        object_store_conf_path = self.config.get(
            "object_store_config_file",
            join(dirname(self.config_file), 'object_store_conf.xml'))
        try:
            if '.xml' in object_store_conf_path:
                for store in parse_xml(object_store_conf_path).iter('object_store'):
                    if 'type' in store.attrib:
                        self.object_stores.append(store.attrib['type'])
            else:
                with open(object_store_conf_path, "r") as f:
                    job_conf_dict = yaml.safe_load(f)

                def collect_types(from_dict):
                    if not isinstance(from_dict, dict):
                        return

                    if 'type' in from_dict:
                        self.object_stores.append(from_dict['type'])

                    for value in from_dict.values():
                        if isinstance(value, list):
                            for val in value:
                                collect_types(val)
                        else:
                            collect_types(value)

                collect_types(job_conf_dict)

        except OSError:
            pass

        # Parse auth conf
        auth_conf_xml = self.config.get(
            "auth_config_file",
            join(dirname(self.config_file), 'auth_conf.xml'))
        try:
            for auth in parse_xml(auth_conf_xml).findall('authenticator'):
                auth_type = auth.find('type')
                if auth_type is not None:
                    self.authenticators.append(auth_type.text)
        except OSError:
            pass

        # Parse containers config
        containers_conf_yml = self.config.get(
            "containers_config_file",
            join(dirname(self.config_file), 'containers_conf.yml'))
        containers_conf = parse_containers_config(containers_conf_yml)
        self.container_interface_types = [c.get('type', None) for c in containers_conf.values()]

        # Parse error report config
        error_report_yml = self.config.get(
            "error_report_file",
            join(dirname(self.config_file), 'error_report.yml'))
        try:
            with open(error_report_yml) as f:
                error_reporters = yaml.safe_load(f)
                self.error_report_modules = [er.get('type', None) for er in error_reporters]
        except OSError:
            pass

        # Parse file sources config
        file_sources_conf_yml = self.config.get(
            "file_sources_config_file",
            join(dirname(self.config_file), 'file_sources_conf.yml'))
        if exists(file_sources_conf_yml):
            with open(file_sources_conf_yml, "r") as f:
                file_sources_conf = yaml.safe_load(f)
        else:
            file_sources_conf = []
        self.file_sources = [c.get('type', None) for c in file_sources_conf]

[docs]    def get_conditional_requirements(self):
        crfile = join(dirname(__file__), 'conditional-requirements.txt')
        for req in pkg_resources.parse_requirements(open(crfile).readlines()):
            self.conditional_reqs.append(req)

[docs]    def check(self, name):
        try:
            name = name.replace('-', '_').replace('.', '_')
            return getattr(self, 'check_' + name)()
        except Exception:
            return False

[docs]    def check_psycopg2_binary(self):
        return self.config["database_connection"].startswith("postgres")

[docs]    def check_mysqlclient(self):
        return self.config["database_connection"].startswith("mysql")

[docs]    def check_drmaa(self):
        return ("galaxy.jobs.runners.drmaa:DRMAAJobRunner" in self.job_runners or
                "galaxy.jobs.runners.slurm:SlurmJobRunner" in self.job_runners or
                "galaxy.jobs.runners.univa:UnivaJobRunner" in self.job_runners)

[docs]    def check_galaxycloudrunner(self):
        return ("galaxycloudrunner.rules" in self.job_rule_modules)

[docs]    def check_pbs_python(self):
        return "galaxy.jobs.runners.pbs:PBSJobRunner" in self.job_runners

[docs]    def check_pykube(self):
        return "galaxy.jobs.runners.kubernetes:KubernetesJobRunner" in self.job_runners or which('kubectl')

[docs]    def check_chronos_python(self):
        return "galaxy.jobs.runners.chronos:ChronosJobRunner" in self.job_runners

[docs]    def check_fluent_logger(self):
        return asbool(self.config["fluent_log"])

[docs]    def check_raven(self):
        return self.config.get("sentry_dsn", None) is not None

[docs]    def check_statsd(self):
        return self.config.get("statsd_host", None) is not None

[docs]    def check_python_ldap(self):
        return ('ldap' in self.authenticators or
                'activedirectory' in self.authenticators)

[docs]    def check_python_pam(self):
        return 'PAM' in self.authenticators

[docs]    def check_azure_storage(self):
        return 'azure_blob' in self.object_stores

[docs]    def check_kamaki(self):
        return 'pithos' in self.object_stores

[docs]    def check_python_irodsclient(self):
        return 'irods' in self.object_stores

[docs]    def check_fs_dropboxfs(self):
        return 'dropbox' in self.file_sources

[docs]    def check_fs_webdavfs(self):
        return 'webdav' in self.file_sources

[docs]    def check_watchdog(self):
        install_set = {'auto', 'True', 'true', 'polling', True}
        return (self.config['watch_tools'] in install_set or
                self.config['watch_tool_data_dir'] in install_set)

[docs]    def check_docker(self):
        return (self.config.get("enable_beta_containers_interface", False) and
                ('docker' in self.container_interface_types or
                 'docker_swarm' in self.container_interface_types))

[docs]    def check_python_gitlab(self):
        return 'gitlab' in self.error_report_modules

[docs]    def check_pygithub(self):
        return 'github' in self.error_report_modules

[docs]    def check_influxdb(self):
        return 'influxdb' in self.error_report_modules

[docs]    def check_keras(self):
        return asbool(self.config["enable_tool_recommendations"])

[docs]    def check_tensorflow(self):
        return asbool(self.config["enable_tool_recommendations"])


[docs]def optional(config_file=None):
    if not config_file:
        config_file = find_config_file(['galaxy', 'universe_wsgi'], include_samples=True)
    if not config_file:
        print("galaxy.dependencies.optional: no config file found", file=sys.stderr)
        return []
    rval = []
    conditional = ConditionalDependencies(config_file)
    for opt in conditional.conditional_reqs:
        if conditional.check(opt.key):
            rval.append(str(opt))
    return rval