Indexer mimetype - Fix parsing error
Once in a while, the indexer mimetype raises an error when it tries to parse the output of file --mime error.
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: Traceback (most recent call last):
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: File "/usr/lib/python3/dist-packages/swh/indexer/indexer.py", line 220, in run
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: res = self.index_content(sha1, raw_content)
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: File "/usr/lib/python3/dist-packages/swh/indexer/mimetype.py", line 97, in index_content
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: properties = compute_mimetype_encoding(raw_content, log=self.log)
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: File "/usr/lib/python3/dist-packages/swh/indexer/mimetype.py", line 33, in compute_mimetype_encoding
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: encoding = res[1].split(b'=')[1]
Oct 10 07:49:13 worker01.euwest.azure python3[48818]: IndexError: list index out of range
Oct 10 07:49:13 worker01.euwest.azure python3[49118]: [2017-10-10 07:49:13,252: ERROR/Worker-2] Problem when reading contents metadata.
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/swh/indexer/indexer.py", line 220, in run
res = self.index_content(sha1, raw_content)
File "/usr/lib/python3/dist-packages/swh/indexer/mimetype.py", line 97, in index_content
properties = compute_mimetype_encoding(raw_content)
File "/usr/lib/python3/dist-packages/swh/indexer/mimetype.py", line 33, in compute_mimetype_encoding
encoding = res[1].split(b'=')[1]
IndexError: list index out of range
Oct 10 07:49:13 worker01.euwest.azure python3[49118]: [2017-10-10 07:49:13,364: WARNING/Worker-2] Rescheduling batchMigrated from T801 (view on Phabricator)