/
draft2tool.py
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/
draft2tool.py
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import avro.schema
import json
import copy
from flatten import flatten
import functools
import os
from pathmapper import PathMapper, DockerPathMapper
from job import CommandLineJob
import yaml
import glob
import logging
import hashlib
import random
from process import Process, shortname, uniquename, adjustFileObjs
from errors import WorkflowException
import schema_salad.validate as validate
from aslist import aslist
import expression
import re
import urlparse
import tempfile
from builder import CONTENT_LIMIT, substitute
import shellescape
import errno
_logger = logging.getLogger("cwltool")
class ExpressionTool(Process):
def __init__(self, toolpath_object, **kwargs):
super(ExpressionTool, self).__init__(toolpath_object, **kwargs)
class ExpressionJob(object):
def run(self, **kwargs):
try:
self.output_callback(self.builder.do_eval(self.script), "success")
except Exception as e:
_logger.warn("Failed to evaluate expression:\n%s", e, exc_info=(e if kwargs.get('debug') else False))
self.output_callback({}, "permanentFail")
def job(self, joborder, input_basedir, output_callback, **kwargs):
builder = self._init_job(joborder, input_basedir, **kwargs)
j = ExpressionTool.ExpressionJob()
j.builder = builder
j.script = self.tool["expression"]
j.output_callback = output_callback
j.requirements = self.requirements
j.hints = self.hints
j.outdir = None
j.tmpdir = None
yield j
def remove_hostfs(f):
if "hostfs" in f:
del f["hostfs"]
def revmap_file(builder, outdir, f):
"""Remap a file back to original path. For Docker, this is outside the container.
Uses either files in the pathmapper or remaps internal output directories
to the external directory.
"""
if f.get("hostfs"):
return
revmap_f = builder.pathmapper.reversemap(f["path"])
if revmap_f:
f["path"] = revmap_f[1]
f["hostfs"] = True
return f
elif f["path"].startswith(builder.outdir):
f["path"] = os.path.join(outdir, f["path"][len(builder.outdir)+1:])
f["hostfs"] = True
return f
else:
raise WorkflowException("Output file path %s must be within designated output directory (%s) or an input file pass through." % (f["path"], builder.outdir))
class CommandLineTool(Process):
def __init__(self, toolpath_object, **kwargs):
super(CommandLineTool, self).__init__(toolpath_object, **kwargs)
def makeJobRunner(self):
return CommandLineJob()
def makePathMapper(self, reffiles, input_basedir, **kwargs):
dockerReq, _ = self.get_requirement("DockerRequirement")
try:
if dockerReq and kwargs.get("use_container"):
return DockerPathMapper(reffiles, input_basedir)
else:
return PathMapper(reffiles, input_basedir)
except OSError as e:
if e.errno == errno.ENOENT:
raise WorkflowException("Missing input file %s" % e)
def job(self, joborder, input_basedir, output_callback, **kwargs):
builder = self._init_job(joborder, input_basedir, **kwargs)
if self.tool["baseCommand"]:
for n, b in enumerate(aslist(self.tool["baseCommand"])):
builder.bindings.append({
"position": [-1000000, n],
"valueFrom": b
})
if self.tool.get("arguments"):
for i, a in enumerate(self.tool["arguments"]):
if isinstance(a, dict):
a = copy.copy(a)
if a.get("position"):
a["position"] = [a["position"], i]
else:
a["position"] = [0, i]
a["do_eval"] = a["valueFrom"]
a["valueFrom"] = None
builder.bindings.append(a)
else:
builder.bindings.append({
"position": [0, i],
"valueFrom": a
})
builder.bindings.sort(key=lambda a: a["position"])
reffiles = set((f["path"] for f in builder.files))
j = self.makeJobRunner()
j.builder = builder
j.joborder = builder.job
j.stdin = None
j.stdout = None
j.successCodes = self.tool.get("successCodes")
j.temporaryFailCodes = self.tool.get("temporaryFailCodes")
j.permanentFailCodes = self.tool.get("permanentFailCodes")
j.requirements = self.requirements
j.hints = self.hints
j.name = uniquename(kwargs.get("name", str(id(j))))
_logger.debug("[job %s] initializing from %s%s",
j.name,
self.tool.get("id", ""),
" as part of %s" % kwargs["part_of"] if "part_of" in kwargs else "")
_logger.debug("[job %s] %s", j.name, json.dumps(joborder, indent=4))
builder.pathmapper = None
if self.tool.get("stdin"):
j.stdin = builder.do_eval(self.tool["stdin"])
if isinstance(j.stdin, dict) and "ref" in j.stdin:
j.stdin = builder.job[j.stdin["ref"][1:]]["path"]
reffiles.add(j.stdin)
if self.tool.get("stdout"):
j.stdout = builder.do_eval(self.tool["stdout"])
if os.path.isabs(j.stdout) or ".." in j.stdout:
raise validate.ValidationException("stdout must be a relative path")
builder.pathmapper = self.makePathMapper(reffiles, input_basedir, **kwargs)
builder.requirements = j.requirements
# map files to assigned path inside a container. We need to also explicitly
# walk over input as implicit reassignment doesn't reach everything in builder.bindings
def _check_adjust(f):
if not f.get("containerfs"):
f["path"] = builder.pathmapper.mapper(f["path"])[1]
f["containerfs"] = True
return f
adjustFileObjs(builder.files, _check_adjust)
adjustFileObjs(builder.bindings, _check_adjust)
_logger.debug("[job %s] command line bindings is %s", j.name, json.dumps(builder.bindings, indent=4))
_logger.debug("[job %s] path mappings is %s", j.name, json.dumps({p: builder.pathmapper.mapper(p) for p in builder.pathmapper.files()}, indent=4))
dockerReq, _ = self.get_requirement("DockerRequirement")
if dockerReq and kwargs.get("use_container"):
out_prefix = kwargs.get("tmp_outdir_prefix")
j.outdir = kwargs.get("outdir") or tempfile.mkdtemp(prefix=out_prefix)
tmpdir_prefix = kwargs.get('tmpdir_prefix')
j.tmpdir = kwargs.get("tmpdir") or tempfile.mkdtemp(prefix=tmpdir_prefix)
else:
j.outdir = builder.outdir
j.tmpdir = builder.tmpdir
createFiles, _ = self.get_requirement("CreateFileRequirement")
j.generatefiles = {}
if createFiles:
for t in createFiles["fileDef"]:
j.generatefiles[builder.do_eval(t["filename"])] = copy.deepcopy(builder.do_eval(t["fileContent"]))
j.environment = {}
evr, _ = self.get_requirement("EnvVarRequirement")
if evr:
for t in evr["envDef"]:
j.environment[t["envName"]] = builder.do_eval(t["envValue"])
shellcmd, _ = self.get_requirement("ShellCommandRequirement")
if shellcmd:
cmd = []
for b in builder.bindings:
arg = builder.generate_arg(b)
if b.get("shellQuote", True):
arg = [shellescape.quote(a) for a in aslist(arg)]
cmd.extend(aslist(arg))
j.command_line = ["/bin/sh", "-c", " ".join(cmd)]
else:
j.command_line = flatten(map(builder.generate_arg, builder.bindings))
j.pathmapper = builder.pathmapper
j.collect_outputs = functools.partial(self.collect_output_ports, self.tool["outputs"], builder)
j.output_callback = output_callback
yield j
def collect_output_ports(self, ports, builder, outdir):
try:
ret = {}
custom_output = os.path.join(outdir, "cwl.output.json")
if builder.fs_access.exists(custom_output):
with builder.fs_access.open(custom_output, "r") as f:
ret = yaml.load(f)
_logger.debug("Raw output from %s: %s", custom_output, json.dumps(ret, indent=4))
adjustFileObjs(ret, remove_hostfs)
adjustFileObjs(ret, functools.partial(revmap_file, builder, outdir))
adjustFileObjs(ret, remove_hostfs)
validate.validate_ex(self.names.get_name("outputs_record_schema", ""), ret)
return ret
for port in ports:
fragment = shortname(port["id"])
ret[fragment] = self.collect_output(port, builder, outdir)
if ret:
adjustFileObjs(ret, remove_hostfs)
validate.validate_ex(self.names.get_name("outputs_record_schema", ""), ret)
return ret if ret is not None else {}
except validate.ValidationException as e:
raise WorkflowException("Error validating output record, " + str(e) + "\n in " + json.dumps(ret, indent=4))
def collect_output(self, schema, builder, outdir):
r = None
if "outputBinding" in schema:
binding = schema["outputBinding"]
globpatterns = []
revmap = functools.partial(revmap_file, builder, outdir)
if "glob" in binding:
r = []
for gb in aslist(binding["glob"]):
gb = builder.do_eval(gb)
if gb:
globpatterns.extend(aslist(gb))
for gb in globpatterns:
if gb.startswith("/"):
raise WorkflowError("glob patterns must not start with '/'")
try:
r.extend([{"path": g, "class": "File", "hostfs": True}
for g in builder.fs_access.glob(os.path.join(outdir, gb))])
except (OSError, IOError) as e:
_logger.warn(str(e))
for files in r:
checksum = hashlib.sha1()
with builder.fs_access.open(files["path"], "rb") as f:
contents = f.read(CONTENT_LIMIT)
if binding.get("loadContents"):
files["contents"] = contents
filesize = 0
while contents != "":
checksum.update(contents)
filesize += len(contents)
contents = f.read(1024*1024)
files["checksum"] = "sha1$%s" % checksum.hexdigest()
files["size"] = filesize
if "format" in schema:
files["format"] = builder.do_eval(schema["format"], context=files)
optional = False
singlefile = False
if isinstance(schema["type"], list):
if "null" in schema["type"]:
optional = True
if "File" in schema["type"]:
singlefile = True
elif schema["type"] == "File":
singlefile = True
if "outputEval" in binding:
r = builder.do_eval(binding["outputEval"], context=r)
if singlefile:
# Handle single file outputs not wrapped in a list
if r is not None and not isinstance(r, (list, tuple)):
r = [r]
if optional and r is None:
pass
elif (r is None or len(r) != 1 or not isinstance(r[0], dict) or "path" not in r[0]):
raise WorkflowException("Expression must return a file object for %s." % schema["id"])
if singlefile:
if not r and not optional:
raise WorkflowException("Did not find output file with glob pattern: '{}'".format(globpatterns))
elif not r and optional:
pass
elif isinstance(r, list):
if len(r) > 1:
raise WorkflowException("Multiple matches for output item that is a single file.")
else:
r = r[0]
# Ensure files point to local references outside of the run environment
adjustFileObjs(r, revmap)
if "secondaryFiles" in schema:
for primary in aslist(r):
if isinstance(primary, dict):
primary["secondaryFiles"] = []
for sf in aslist(schema["secondaryFiles"]):
if isinstance(sf, dict) or "$(" in sf or "${" in sf:
sfpath = builder.do_eval(sf, context=r)
if isinstance(sfpath, basestring):
sfpath = revmap({"path": sfpath, "class": "File"})
else:
sfpath = {"path": substitute(primary["path"], sf), "class": "File", "hostfs": True}
for sfitem in aslist(sfpath):
if builder.fs_access.exists(sfitem["path"]):
primary["secondaryFiles"].append(sfitem)
if not r and optional:
r = None
if not r and isinstance(schema["type"], dict) and schema["type"]["type"] == "record":
r = {}
for f in schema["type"]["fields"]:
r[shortname(f["name"])] = self.collect_output(f, builder, outdir)
return r