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Merge pull request #18419 from TomHarrop/datatype_pod5
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Add pod5 datatype
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nsoranzo authored Jun 26, 2024
2 parents a782d24 + 5279f44 commit 9524be3
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Showing 3 changed files with 27 additions and 0 deletions.
2 changes: 2 additions & 0 deletions lib/galaxy/config/sample/datatypes_conf.xml.sample
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Expand Up @@ -361,6 +361,7 @@
<datatype extension="fast5.tar.gz" type="galaxy.datatypes.binary:Fast5ArchiveGz" display_in_upload="true"/>
<datatype extension="fast5.tar.bz2" type="galaxy.datatypes.binary:Fast5ArchiveBz2" display_in_upload="true"/>
<datatype extension="fast5.tar.xz" type="galaxy.datatypes.binary:Fast5ArchiveXz" display_in_upload="true"/>
<datatype extension="pod5" type="galaxy.datatypes.binary:Pod5" display_in_upload="true"/>
<datatype extension="peptideshaker_archive" type="galaxy.datatypes.binary:CompressedArchive" subclass="true" display_in_upload="true"/>
<datatype extension="percin" type="galaxy.datatypes.tabular:Tabular" subclass="true"/>
<datatype extension="percout" type="galaxy.datatypes.xml:GenericXml" subclass="true"/>
Expand Down Expand Up @@ -1079,6 +1080,7 @@
<sniffer type="galaxy.datatypes.binary:Fast5ArchiveXz"/>
<sniffer type="galaxy.datatypes.binary:Fast5ArchiveBz2"/>
<sniffer type="galaxy.datatypes.binary:Fast5Archive"/>
<sniffer type="galaxy.datatypes.binary:Pod5"/>
<sniffer type="galaxy.datatypes.binary:Meryldb" />
<sniffer type="galaxy.datatypes.binary:Bref3" />
<sniffer type="galaxy.datatypes.binary:PostgresqlArchive"/>
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25 changes: 25 additions & 0 deletions lib/galaxy/datatypes/binary.py
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Expand Up @@ -3759,6 +3759,31 @@ def sniff(self, filename: str) -> bool:
return Fast5Archive.sniff(self, filename)


class Pod5(Binary):
"""
Class describing a POD5 file. The POD5 Format Specification is at
https://pod5-file-format.readthedocs.io/en/latest/SPECIFICATION.html
>>> from galaxy.datatypes.sniff import get_test_fname
>>> fname = get_test_fname('test.pod5')
>>> Pod5().sniff(fname)
True
>>> fname = get_test_fname('test.fast5.tar')
>>> Pod5().sniff(fname)
False
"""

file_ext = "pod5"

def sniff(self, filename: str) -> bool:
expected_signature = bytes([0x8B, 0x50, 0x4F, 0x44, 0x0D, 0x0A, 0x1A, 0x0A])
with open(filename, "rb") as f:
first_8_bytes = f.read(8)
f.seek(-8, 2)
last_8_bytes = f.read(8)
return first_8_bytes == expected_signature and last_8_bytes == expected_signature


class SearchGuiArchive(CompressedArchive):
"""Class describing a SearchGUI archive"""

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Binary file added lib/galaxy/datatypes/test/test.pod5
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