5 logger = logging.getLogger('run-command')
6 log_handler = logging.StreamHandler()
7 log_handler.setFormatter(logging.Formatter("run-command: %(message)s"))
8 logger.addHandler(log_handler)
9 logger.setLevel(logging.INFO)
17 import crunchutil.subst as subst
19 import arvados.commands.put as put
25 import multiprocessing
26 import crunchutil.robust_put as robust_put
27 import crunchutil.vwd as vwd
33 parser = argparse.ArgumentParser()
34 parser.add_argument('--dry-run', action='store_true')
35 parser.add_argument('--script-parameters', type=str, default="{}")
36 args = parser.parse_args()
41 api = arvados.api('v1')
42 t = arvados.current_task().tmpdir
43 os.chdir(arvados.current_task().tmpdir)
52 jobp = arvados.current_job()['script_parameters']
53 if len(arvados.current_task()['parameters']) > 0:
54 taskp = arvados.current_task()['parameters']
57 jobp = json.loads(args.script_parameters)
58 os.environ['JOB_UUID'] = 'zzzzz-8i9sb-1234567890abcde'
59 os.environ['TASK_UUID'] = 'zzzzz-ot0gb-1234567890abcde'
60 os.environ['CRUNCH_SRC'] = '/tmp/crunche-src'
61 if 'TASK_KEEPMOUNT' not in os.environ:
62 os.environ['TASK_KEEPMOUNT'] = '/keep'
67 return os.path.join(arvados.current_task().tmpdir, 'tmpdir')
73 return str(multiprocessing.cpu_count())
76 return os.environ['JOB_UUID']
79 return os.environ['TASK_UUID']
82 return os.environ['CRUNCH_SRC']
84 subst.default_subs["task.tmpdir"] = sub_tmpdir
85 subst.default_subs["task.outdir"] = sub_outdir
86 subst.default_subs["job.srcdir"] = sub_jobsrc
87 subst.default_subs["node.cores"] = sub_cores
88 subst.default_subs["job.uuid"] = sub_jobid
89 subst.default_subs["task.uuid"] = sub_taskid
91 class SigHandler(object):
95 def send_signal(self, subprocesses, signum):
96 for sp in subprocesses:
97 sp.send_signal(signum)
100 def add_to_group(gr, match):
104 gr[m].append(match.group(0))
106 def expand_item(p, c, flatten=True):
107 if isinstance(c, dict):
108 if "foreach" in c and "command" in c:
110 items = get_items(p, p[var])
113 params = copy.copy(p)
115 r.extend(expand_item(params, c["command"]))
117 if "list" in c and "index" in c and "command" in c:
119 items = get_items(p, p[var])
120 params = copy.copy(p)
121 params[var] = items[int(c["index"])]
122 return expand_list(params, c["command"])
124 pattern = re.compile(c["regex"])
126 items = get_items(p, p[c["filter"]])
127 return [i for i in items if pattern.match(i)]
129 items = get_items(p, p[c["group"]])
132 match = pattern.match(i)
134 add_to_group(groups, match)
135 return [groups[k] for k in groups]
137 items = get_items(p, p[c["extract"]])
140 match = pattern.match(i)
142 r.append(list(match.groups()))
144 elif isinstance(c, list):
145 return expand_list(p, c)
146 elif isinstance(c, basestring):
148 return [subst.do_substitution(p, c)]
150 return subst.do_substitution(p, c)
154 def expand_list(p, l, flatten=True):
155 if isinstance(l, basestring):
156 return expand_item(p, l)
158 return [exp for arg in l for exp in expand_item(p, arg, flatten)]
160 return [expand_item(p, arg, flatten) for arg in l]
162 def get_items(p, value, flatten=True):
163 if isinstance(value, dict):
164 return expand_item(p, value)
166 if isinstance(value, list):
167 return expand_list(p, value, flatten)
169 fn = subst.do_substitution(p, value)
170 mode = os.stat(fn).st_mode
171 prefix = fn[len(os.environ['TASK_KEEPMOUNT'])+1:]
173 if stat.S_ISDIR(mode):
174 items = [os.path.join(fn, l) for l in os.listdir(fn)]
175 elif stat.S_ISREG(mode):
177 items = [line.rstrip("\r\n") for line in f]
187 def recursive_foreach(params, fvars):
190 items = get_items(params, params[var], False)
191 logger.info("parallelizing on %s with items %s" % (var, items))
192 if items is not None:
194 params = copy.copy(params)
197 recursive_foreach(params, fvars)
200 arvados.api().job_tasks().create(body={
201 'job_uuid': arvados.current_job()['uuid'],
202 'created_by_job_task_uuid': arvados.current_task()['uuid'],
207 if isinstance(params["command"][0], list):
208 logger.info(expand_list(params, params["command"], False))
210 logger.info(expand_list(params, params["command"], True))
212 logger.error("parameter %s with value %s in task.foreach yielded no items" % (var, params[var]))
216 if "task.foreach" in jobp:
217 if args.dry_run or arvados.current_task()['sequence'] == 0:
218 # This is the first task to start the other tasks and exit
219 fvars = jobp["task.foreach"]
220 if isinstance(fvars, basestring):
222 if not isinstance(fvars, list) or len(fvars) == 0:
223 logger.error("value of task.foreach must be a string or non-empty list")
225 recursive_foreach(jobp, jobp["task.foreach"])
227 if "task.vwd" in jobp:
228 # Set output of the first task to the base vwd collection so it
229 # will be merged with output fragments from the other tasks by
231 arvados.current_task().set_output(subst.do_substitution(jobp, jobp["task.vwd"]))
233 arvados.current_task().set_output(None)
236 # This is the only task so taskp/jobp are the same
238 except Exception as e:
239 logger.exception("caught exception")
240 logger.error("job parameters were:")
241 logger.error(pprint.pformat(jobp))
246 if "task.vwd" in taskp:
247 # Populate output directory with symlinks to files in collection
248 vwd.checkout(subst.do_substitution(taskp, taskp["task.vwd"]), outdir)
250 if "task.cwd" in taskp:
251 os.chdir(subst.do_substitution(taskp, taskp["task.cwd"]))
254 if isinstance(taskp["command"][0], list):
255 cmd.append(expand_list(taskp, taskp["command"], False))
257 cmd.append(expand_list(taskp, taskp["command"], True))
259 if "task.stdin" in taskp:
260 stdinname = subst.do_substitution(taskp, taskp["task.stdin"])
262 stdinfile = open(stdinname, "rb")
264 if "task.stdout" in taskp:
265 stdoutname = subst.do_substitution(taskp, taskp["task.stdout"])
267 stdoutfile = open(stdoutname, "wb")
269 logger.info("{}{}{}".format(' | '.join([' '.join(c) for c in cmd]), (" < " + stdinname) if stdinname is not None else "", (" > " + stdoutname) if stdoutname is not None else ""))
273 except subst.SubstitutionError as e:
275 logger.error("task parameters were:")
276 logger.error(pprint.pformat(taskp))
278 except Exception as e:
279 logger.exception("caught exception")
280 logger.error("task parameters were:")
281 logger.error(pprint.pformat(taskp))
288 close_streams.append(stdinfile)
289 next_stdin = stdinfile
291 for i in xrange(len(cmd)):
293 # this is the last command in the pipeline, so its stdout should go to stdoutfile
294 next_stdout = stdoutfile
296 # this is an intermediate command in the pipeline, so its stdout should go to a pipe
297 next_stdout = subprocess.PIPE
299 sp = subprocess.Popen(cmd[i], shell=False, stdin=next_stdin, stdout=next_stdout)
301 # Need to close the FDs on our side so that subcommands will get SIGPIPE if the
302 # consuming process ends prematurely.
304 close_streams.append(sp.stdout)
306 # Send this processes's stdout to to the next process's stdin
307 next_stdin = sp.stdout
309 subprocesses.append(sp)
311 # File descriptors have been handed off to the subprocesses, so close them here.
312 for s in close_streams:
315 # Set up signal handling
318 # Forward terminate signals to the subprocesses.
319 signal.signal(signal.SIGINT, lambda signum, frame: sig.send_signal(subprocesses, signum))
320 signal.signal(signal.SIGTERM, lambda signum, frame: sig.send_signal(subprocesses, signum))
321 signal.signal(signal.SIGQUIT, lambda signum, frame: sig.send_signal(subprocesses, signum))
324 pids = set([s.pid for s in subprocesses])
327 (pid, status) = os.wait()
329 rcode[pid] = (status >> 8)
331 if sig.sig is not None:
332 logger.critical("terminating on signal %s" % sig.sig)
335 for i in xrange(len(cmd)):
336 r = rcode[subprocesses[i].pid]
337 logger.info("%s completed with exit code %i (%s)" % (cmd[i][0], r, "success" if r == 0 else "failed"))
339 except Exception as e:
340 logger.exception("caught exception")
342 # restore default signal handlers.
343 signal.signal(signal.SIGINT, signal.SIG_DFL)
344 signal.signal(signal.SIGTERM, signal.SIG_DFL)
345 signal.signal(signal.SIGQUIT, signal.SIG_DFL)
350 logger.info("the following output files will be saved to keep:")
352 subprocess.call(["find", ".", "-type", "f", "-printf", "run-command: %12.12s %h/%f\\n"], stdout=sys.stderr)
354 logger.info("start writing output to keep")
356 if "task.vwd" in taskp:
357 if "task.foreach" in jobp:
358 # This is a subtask, so don't merge with the original collection, that will happen at the end
359 outcollection = vwd.checkin(subst.do_substitution(taskp, taskp["task.vwd"]), outdir, merge=False).manifest_text()
361 # Just a single task, so do merge with the original collection
362 outcollection = vwd.checkin(subst.do_substitution(taskp, taskp["task.vwd"]), outdir, merge=True).manifest_text()
364 outcollection = robust_put.upload(outdir, logger)
366 success = reduce(lambda x, y: x & (y == 0), [True]+rcode.values())
368 api.job_tasks().update(uuid=arvados.current_task()['uuid'],
370 'output': outcollection,