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67af85eca9
If a final sequence file or directory name matches a pattern which is recognised to indicate a ‘pending acceptance’ status, the final data (if any exists) for that sequence will be deleted and a comment added to the effect that the sequence has been marked as ‘pending’. To accept the sequence, rename its final file or directory name accordingly. Note: it is the *final* data that is searched for a matching pattern, not the raw. Closes #91.
65 lines
1.7 KiB
Python
Executable File
65 lines
1.7 KiB
Python
Executable File
#!/usr/bin/python3
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"""
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Re-import Dougal-exported data created by
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system_exports.py
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"""
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import os
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from glob import glob
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import configuration
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import preplots
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from datastore import Datastore, psycopg2
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exportables = [
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"events_seq",
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"events_seq_labels",
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"events_timed",
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"events_timed_labels"
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]
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if __name__ == '__main__':
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print("Reading configuration")
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surveys = configuration.surveys()
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print("Connecting to database")
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db = Datastore()
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print("Reading surveys")
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for survey in surveys:
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print(f'Survey: {survey["id"]} ({survey["schema"]})')
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db.set_survey(survey["schema"])
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with db.conn.cursor() as cursor:
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cursor.execute("SET session_replication_role = replica;")
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try:
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pathPrefix = survey["exports"]["machine"]["path"]
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except KeyError:
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print("Survey does not define an export path for machine data")
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continue
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try:
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for table in exportables:
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path = os.path.join(pathPrefix, table)
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if os.path.exists(path):
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cursor.execute(f"DELETE FROM {table};")
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for table in exportables:
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path = os.path.join(pathPrefix, table)
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print(" ← ", path, " → ", table)
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with open(path, "rb") as fd:
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cursor.copy_from(fd, table)
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except psycopg2.errors.UniqueViolation:
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print("It looks like data for this survey may have already been imported (unique constraint violation)")
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# If we don't commit the data does not actually get copied
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db.conn.commit()
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cursor.execute("SET session_replication_role = DEFAULT;")
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# Update the sequences that generate event ids
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cursor.execute("SELECT reset_events_serials();")
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# Let us ensure events_timed_seq is up to date, even though
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# the triggers will have taken care of this already.
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cursor.execute("CALL events_timed_seq_update_all();")
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print("Done")
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