RR counts are represented as offsets from the first count, but that wasn't being done
correctly when counts are adjusted on the fly. Also, we were triggering the expensive
conversion and writing to binary tags even when we weren't going to write the read
to disk.
The code has been updated so that unconverted counts are passed to the GATKSAMRecord
and it knows how to encode the tag correctly. Also, there are now methods to write
to the reduced counts array without forcing the conversion (and methods that do force
the conversion).
Also:
1. counts are now maintained as ints whenever possible. Only the GATKSAMRecord knows
about the internal encoding.
2. as discussed in meetings today, we updated the encoding so that it can now handle
a range of values that extends to 255 instead of 127 (and is backwards compatible).
3. tests have been moved from SyntheticReadUnitTest to GATKSAMRecordUnitTest accordingly.
-- The previous version of the read clipping operations wouldn't modify the reduced reads counts, so hardClipToRegion would result in a read with, say, 50 bp of sequence and base qualities but 250 bp of reduced read counts. Updated the hardClip operation to handle reduce reads, and added a unit test to make sure this works properly. Also had to update GATKSAMRecord.emptyRead() to set the reduced count to new byte[0] if the template read is a reduced read
-- Update md5s, where the new code recovers a TP variant with count 2 that was missed previously
* No reads with Hard/Soft clips in the middle of the cigar
* No reads starting with deletions (with or without preceding clips)
* No reads ending in deletions (with or without follow-up clips)
* No reads that are fully hard or soft clipped
* No reads that have consecutive indels in the cigar (II, DD, ID or DI)
Also added systematic test for good cigars and iterative test for bad cigars.
with the new clipping behavior for weird cigars, we no longer can assert the final number of bases in the unit test, so I'm taking this bit off the unit test.
* Sites with more soft clipped bases than regular will force-trigger a variant region
* No more unclipping/reclipping, RR machinery now handles soft clips natively.
* implemented support for base insertion and base deletion quality scores in synthetic and regular reads.
* GATKSAMRecord clone() now creates a fresh object for temporary attributes if one is present.
note: SAMRecords create a shallow copy of the tempAttribute object which was causing multiple reads (that came from the same read) to have their temporary attributes modified by one another inside reduce reads. Beware, if you're not using GATKSAMRecord!
* Modified cleanCigarShift to allow insertions in the beginning and end of the read
* Allowed cigars starting/ending in insertions in the systematic ReadClipper tests
* Updated all ReadClipper unit tests
* ReduceReads does not hard clip leading insertions by default anymore
* SlidingWindow adjusts start location if read starts with insertion
* SlidingWindow creates an empty element with insertions to the right
* Fixed all potential divide by zero with totalCount() (from BaseCounts)
* Updated all Integration tests
* Added new integration test for multiple interval reducing
These functions are methods of the read, and supplement getAlignmentStart() and getUnclippedStart() by calculating the unclipped start counting only soft clips.
* Removed from ReadUtils
* Added to GATKSAMRecord
* Changed name to getSoftStart() and getSoftEnd
* Updated third party code accordingly.
* New ClippingOp REVERT_SOFTCLIPPED_BASES turns soft clipped bases into matches.
* Added functionality to clipping op to revert all soft clip bases in a read into matches
* Added revertSoftClipBases function to the ReadClipper for public use
* Wrote systematic unit tests
Eric Banks
Mark DePristo
Mauricio Carneiro