Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/cwltool/resolver.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 """Resolves references to CWL documents from local or remote places."""
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2 from __future__ import absolute_import
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3
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4 import os
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5 import sys
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6
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7 from typing import Any, Optional, Text
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8
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9 from six.moves import urllib
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10
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11 from schema_salad.ref_resolver import Loader
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12
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13 from .loghandler import _logger
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14 from schema_salad.ref_resolver import Loader
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15
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16 from pathlib2 import Path
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17
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18 if not getattr(__builtins__, "WindowsError", None):
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19 class WindowsError(OSError): pass
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20
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21 def resolve_local(document_loader, uri):
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22 # type: (Loader, Text) -> Optional[Text]
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23 pathpart, frag = urllib.parse.urldefrag(uri)
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24
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25 try:
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26 pathobj = Path(pathpart).resolve()
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27 except (WindowsError, OSError):
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28 _logger.debug("local resolver could not resolve %s", uri)
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29 return None
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30
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31 if pathobj.is_file():
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32 if frag:
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33 return "{}#{}".format(pathobj.as_uri(), frag)
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34 return pathobj.as_uri()
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35
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36 sharepaths = [os.environ.get("XDG_DATA_HOME", os.path.join(
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37 os.path.expanduser('~'), ".local", "share"))]
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38 sharepaths.extend(os.environ.get(
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39 "XDG_DATA_DIRS", "/usr/local/share/:/usr/share/").split(":"))
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40 shares = [os.path.join(s, "commonwl", uri) for s in sharepaths]
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41
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42 _logger.debug("Search path is %s", shares)
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43
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44 for path in shares:
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45 if os.path.exists(path):
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46 return Path(uri).as_uri()
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47 if os.path.exists("{}.cwl".format(path)):
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48 return Path("{}.cwl".format(path)).as_uri()
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49 return None
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50
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51
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52 def tool_resolver(document_loader, uri): # type: (Loader, Text) -> Optional[Text]
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53 for r in [resolve_local, resolve_ga4gh_tool]:
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54 ret = r(document_loader, uri)
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55 if ret is not None:
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56 return ret
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57 return None
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58
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59
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60 ga4gh_tool_registries = ["https://dockstore.org/api"]
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61 # in the TRS registry, a primary descriptor can be reached at {0}/api/ga4gh/v2/tools/{1}/versions/{2}/plain-CWL/descriptor
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62 # The primary descriptor is a CommandLineTool in the case that the files endpoint only describes one file
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63 # When the primary descriptor is a Workflow, files need to be imported without stripping off "descriptor", looking at the files endpoint is a workaround
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64 # tested with TRS version 2.0.0-beta.2
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65 # TODO not stripping off "descriptor" when looking for local imports would also work https://github.com/ga4gh/tool-registry-service-schemas/blob/2.0.0-beta.2/src/main/resources/swagger/ga4gh-tool-discovery.yaml#L273
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66 GA4GH_TRS_FILES = "{0}/api/ga4gh/v2/tools/{1}/versions/{2}/CWL/files"
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67 GA4GH_TRS_PRIMARY_DESCRIPTOR = "{0}/api/ga4gh/v2/tools/{1}/versions/{2}/plain-CWL/descriptor/{3}"
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68
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69
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70 def resolve_ga4gh_tool(document_loader, uri): # type: (Loader, Text) -> Optional[Text]
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71 path, version = uri.partition(":")[::2]
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72 if not version:
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73 version = "latest"
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74 for reg in ga4gh_tool_registries:
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75 ds = GA4GH_TRS_FILES.format(reg, urllib.parse.quote(path, ""), urllib.parse.quote(version, ""))
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76 try:
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77 _logger.debug("Head path is %s", ds)
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78 resp = document_loader.session.head(ds)
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79 resp.raise_for_status()
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80
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81 _logger.debug("Passed head path of %s", ds)
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82
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83 resp = document_loader.session.get(ds)
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84 for file_listing in resp.json():
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85 if file_listing.get('file_type') == 'PRIMARY_DESCRIPTOR':
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86 primary_path = file_listing.get('path')
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87 ds2 = GA4GH_TRS_PRIMARY_DESCRIPTOR.format(reg, urllib.parse.quote(path, ""), urllib.parse.quote(version, ""), urllib.parse.quote(primary_path, ""))
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88 _logger.debug("Resolved %s", ds2)
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89 return ds2
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90 except Exception: # nosec
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91 pass
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92 return None