#!/usr/bin/python
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
import arvados
import re
inp = arvados.CollectionReader(arvados.getjobparam('reads'))
-prog = re.compile(r'(.*?)_1.fastq(.gz)?$')
+manifest_list = []
-manifest_text = ""
-
-def readline(reader, start):
- line = ""
+def nextline(reader, start):
n = -1
- while n == -1:
- r = reader.readfrom(start, 1024)
+ while True:
+ r = reader.readfrom(start, 128)
if r == '':
break
n = string.find(r, "\n")
- line += r[0:n]
- start += len(r)
- return line
-
-def splitfastq(p):
- for i in xrange(0, len(p)):
- p[i]["start"] = 0
- p[i]["end"] = 0
-
- while True:
- recordsize = [0, 0]
-
- # read 4 lines starting at "start"
- for ln in xrange(0, 4):
- for i in xrange(0, len(p)):
- r = readline(p[i]["reader"], p[i]["start"])
- if r == '':
- return
- recordsize[i] += len(r)
-
- splitnow = False
- for i in xrange(0, len(p)):
- if ((p[i]["end"] - p[i]["start"]) + recordsize[i]) >= arvados.BLOCKSIZE:
- splitnow = True
-
- if splitnow:
- for i in xrange(0, len(p)):
- global piece
- global manifest_text
- manifest = []
- manifest.extend("./_" + str(piece))
- manifest.extend([d[arvados.LOCATOR] for d in p["reader"]._stream._data_locators])
- manifest.extend(["{}:{}:{}".format(seg[arvados.LOCATOR], seg[arvados.BLOCKSIZE], self.name().replace(' ', '\\040')) for seg in arvados.locators_and_ranges(p[i]["reader"].segments, p[i]["start"], p[i]["end"] - p[i]["start"])])
- manifest_text += manifest.join(" ") + "\n"
- p[i]["start"] = p[i]["end"]
+ if n > -1:
+ break
else:
- for i in xrange(0, len(p)):
- p[i]["end"] += recordsize[i]
+ start += 128
+ return n
+prog = re.compile(r'(.*?)(_[12])?\.fastq(\.gz)?$')
+# Look for fastq files
for s in inp.all_streams():
- if s.name() == ".":
- for f in s.all_files():
- result = prog.match(f.name())
- if result != None:
- p = [{}, {}]
- p[0]["reader"] = s.files()[result.group(0)]
- if result.group(2) != None:
- p[1]["reader"] = s.files()[result.group(1) + "_2.fastq" + result.group(2)]
- else:
- p[1]["reader"] = s.files()[result.group(1) + "_2.fastq"]
- splitfastq(p)
- #m0 = p[0]["reader"].as_manifest()[1:]
- #m1 = p[1]["reader"].as_manifest()[1:]
- #manifest_text += "./_" + str(piece) + m0
- #manifest_text += "./_" + str(piece) + m1
+ for f in s.all_files():
+ name_pieces = prog.match(f.name())
+ if name_pieces is not None:
+ if s.name() != ".":
+ # The downstream tool (run-command) only iterates over the top
+ # level of directories so if there are fastq files in
+ # directories in the input, the choice is either to forget
+ # there are directories (which might lead to name conflicts) or
+ # just fail.
+ print >>sys.stderr, "fastq must be at the root of the collection"
+ sys.exit(1)
+
+ p = None
+ if name_pieces.group(2) is not None:
+ if name_pieces.group(2) == "_1":
+ p = [{}, {}]
+ p[0]["reader"] = s.files()[name_pieces.group(0)]
+ p[1]["reader"] = s.files()[name_pieces.group(1) + "_2.fastq" + (name_pieces.group(3) if name_pieces.group(3) else '')]
+ else:
+ p = [{}]
+ p[0]["reader"] = s.files()[name_pieces.group(0)]
+
+ if p is not None:
+ for i in xrange(0, len(p)):
+ m = p[i]["reader"].as_manifest().split()
+ m[0] = "./_" + str(piece)
+ manifest_list.append(m)
piece += 1
-# No pairs found so just put each fastq file into a separate directory
-if manifest_text == "":
- for s in inp.all_streams():
- prog = re.compile("(.*?).fastq(.gz)?$")
- if s.name() == ".":
- for f in s.all_files():
- result = prog.match(f.name())
- if result != None:
- p = [{}]
- p[0]["reader"] = s.files()[result.group(0)]
- splitfastq(p)
- #m0 = p[0]["reader"].as_manifest()[1:]
- #manifest_text += "./_" + str(piece) + m0
- piece += 1
+manifest_text = "\n".join(" ".join(m) for m in manifest_list) + "\n"
arvados.current_task().set_output(manifest_text)
projects / arvados.git / blobdiff