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Feature #10268
open[SDK] Convenience method for resolving project/file paths
Story points:
-
Release:
Release relationship:
Auto
Description
Wrote this up as a code sample for customer, but may want to incorporate it into SDK:
import arvados from arvados.collection import RichCollectionBase from arvados.arvfile import ArvadosFile api = arvados.api('v1') def follow_path(path, parent=None): if isinstance(path, basestring): path = path.split("/") if parent is None: scope = path.pop(0) current_user = api.users().current().execute() if scope == "home": parent = current_user["uuid"] elif scope == "shared": startproject = path.pop(0) projects = api.groups().list(filters=[["name", "=", startproject]]).execute() if len(projects["items"]) == 1: parent = projects["items"][0]["uuid"] elif len(projects["items"]) == 0: raise Exception("Starting project '%s' not found" % startproject) else: raise Exception("Found multiple starting projects named '%s'" % (startproject)) else: raise Exception("First path segment must be one of 'home' or 'shared'") if len(path) == 0: return parent # Look for projects with the next name in the path list name = path.pop(0) l = api.groups().list(filters=[["owner_uuid", "=", parent], ["name", "=", name]]).execute() if l["items"]: return follow_path(path, l["items"][0]["uuid"]) # Look for collections with the next name in the path list l = api.collections().list(filters=[["owner_uuid", "=", parent], ["name", "=", name]]).execute() if l["items"]: cr = arvados.collection.CollectionReader(l["items"][0]["uuid"]) if path: f = cr.find("/".join(path)) if f: return f else: raise Exception("path '%s' not found in collection %s" % ("/".join(path), cr.manifest_locator())) else: return cr raise Exception("Can't find subproject or collection named '%s' under project %s" % (name, parent)) #path = "home/Tools/Examples and templates/Config template for example pipeline/example.config" #path = "home/Tools/Examples and templates/Config template for example pipeline" #path = "home/Tools/Examples and templates" #path = "home/Tools" #path = "shared/New project" #path = "shared/Examples and templates" leaf = follow_path(path) if isinstance(leaf, basestring): print "Resolved to project uuid %s" % leaf if isinstance(leaf, RichCollectionBase): print "Resolved to directory '%s' within collection %s" % (leaf.stream_name(), leaf.root_collection().manifest_locator()) if isinstance(leaf, ArvadosFile): print "Resolved to file '%s/%s' within collection %s" % (leaf.parent.stream_name(), leaf.name, leaf.parent.root_collection().manifest_locator())
Updated by Tom Morris almost 8 years ago
So this is basically extending Collection.find() to deal with the full path in the way that arv-mount does? What method does arv-mount use?
http://doc.arvados.org/sdk/python/arvados/arvados.collection.RichCollectionBase-class.html#find
Updated by Tom Morris about 7 years ago
- Target version set to Arvados Future Sprints
Updated by Ward Vandewege over 3 years ago
- Target version deleted (
Arvados Future Sprints)
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