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Source code for galaxy.tours

"""
This module manages loading/etc of Galaxy interactive tours.
"""
import logging
import os

import yaml

from galaxy import util

log = logging.getLogger(__name__)


[docs]def tour_loader(contents_dict): # Some of this can be done on the clientside. Maybe even should? title_default = contents_dict.get('title_default', None) for step in contents_dict['steps']: if 'intro' in step: step['content'] = step.pop('intro') if 'position' in step: step['placement'] = step.pop('position') if 'element' not in step: step['orphan'] = True if title_default and 'title' not in step: step['title'] = title_default return contents_dict
[docs]class ToursRegistry(object):
[docs] def __init__(self, tour_directories): self.tour_directories = util.config_directories_from_setting(tour_directories) self.load_tours()
[docs] def tours_by_id_with_description(self): return [{'id': k, 'description': self.tours[k].get('description', None), 'name': self.tours[k].get('name', None), 'tags': self.tours[k].get('tags', None)} for k in self.tours.keys()]
[docs] def load_tour(self, tour_id): for tour_dir in self.tour_directories: tour_path = os.path.join(tour_dir, tour_id + ".yaml") if not os.path.exists(tour_path): tour_path = os.path.join(tour_dir, tour_id + ".yml") if os.path.exists(tour_path): return self._load_tour_from_path(tour_path)
[docs] def load_tours(self): self.tours = {} for tour_dir in self.tour_directories: for filename in os.listdir(tour_dir): if self._is_yaml(filename): self._load_tour_from_path(os.path.join(tour_dir, filename)) return self.tours_by_id_with_description()
[docs] def reload_tour(self, path): # We may safely assume that the path is within the tour directory filename = os.path.basename(path) if self._is_yaml(filename): self._load_tour_from_path(path)
[docs] def tour_contents(self, tour_id): # Extra format translation could happen here (like the previous intro_to_tour) # For now just return the loaded contents. return self.tours.get(tour_id, None)
def _is_yaml(self, filename): return filename.endswith('.yaml') or filename.endswith('.yml') def _load_tour_from_path(self, tour_path): filename = os.path.basename(tour_path) tour_id = os.path.splitext(filename)[0] try: with open(tour_path) as handle: conf = yaml.safe_load(handle) tour = tour_loader(conf) self.tours[tour_id] = tour_loader(conf) log.info("Loaded tour '%s'" % tour_id) return tour except IOError: log.exception("Tour '%s' could not be loaded, error reading file.", tour_id) except yaml.error.YAMLError: log.exception("Tour '%s' could not be loaded, error within file. Please check your yaml syntax.", tour_id) except TypeError: log.exception("Tour '%s' could not be loaded, error within file. Possibly spacing related. Please check your yaml syntax.", tour_id) return None