-- We are no likely to fail with an error when reading old BCF files, rather than just giving bad results
-- Added new class BCFVersion that consolidates all of the version management of BCF
-- Heng wants to use 0x0? to represent any missing type value, which in our implementation was invalid. Updated our codebase to support this construct. Heng said he'll update the BCF2 quick reference.
-- Enabled integration test reading Heng's ex2.bcf file
-- GATK now only warns in the case where the END info field isn't the same (or +1 due to padding) as the getEnd() function as determined by the GATK. Turns out there's a single record in the 1000G SV call set that doesn't have the right length
-- VariantContextTestProvider now tests that X = Y where X -> writing -> reading -> writing -> reading = Y for a variety of variant context inputs X
-- Added integration test reading 1000G SV chr1 calls (from Chris)
-- getMetaData now split into getMetaDataInSortedOrder() [old functionality] and getMetaDataInOriginalOrder() [according to the header order]. Important as BCF uses the order of elements in the header in the offsets to keys, and we were automatically sorting the BCF2 header which is out of order in samtools and the whole system was going crazy
-- Updating GATK code to use the appropriate header function (this is why so many files have changed)
-- BCF2 code was busted in not differentiating PASS from . from FILTER in VC (tests coming that will actually stress this)
-- Bugfix for adding contig lines to BCF2 header dictionary
-- VCFHeader metaData no longer sorted internally. The system now maintains the data in header order, and only sorts output as requested in API
-- VCFWriter and BCF2Writer now explictly sort their header lines
-- Don't allow filters to be added that are PASS in the contract
-- Bugfix for VCFDiffableReader: don't add null filters to object
-- BCF2Codec uses new VCFAlleleClipper to handle clipping / unclipping of alleles
-- AbstractVCFCodec: decodeLoc uses full decode() [still doesn't decode genotypes] to avoid dangerous code duplication. Refactored code that clipped alleles and determined end position into updateBuilderAllelesAndStop method that uses new VCFAlleleClipper. Fixed bug by ensuring the VCF codec always uses the END field in the INFO when it's provided, not just in the case where the there's a biallelic symbolic allele
-- Brand new home for allele clipping / padding routines in VCFAlleleClipper. Actually documented this code, which results in lots of **** negative comments on the code quality. Eric has promised that he and Ami are going to rethink this code from scratch. Fixed many nasty bugs in here, cleaning up unnecessary branches, etc. Added UnitTests in VCFAlleleClipper that actually test the code full. In the process of testing I discovered lots of edge cases that don't work, and I've commented out failing tests or manually skipped them, noting how this tests need to be fixed. Even introduced some minor optimizations
-- VariantContext: validateAllele was broken in the case where there were mixed symbolic and concrete alleles, failing validation for no reason. Fixed.
-- Added computeEndFromAlleles() function to VariantContextUtils and VariantContextBuilder for convenience calculating where the VC really ends given alleles
--
-- refactored allele clipping / padding code into VCFAlleleClipping class, and added much needed docs and TODOs for methods dev guys
-- Added real unit tests for (some) clipping operations in VCFUtilsUnitTest
-- Previous version was reading the size of the encoded genotypes vector for each genotype. This only worked because I never wrote out genotype field values with > 15 elements. Mauricio's killer DiagnoseTargets VCF uncovered the bug. Unfortunately since symbolic allele clipping is still busted those tests are still diabled
-- GenotypeContext getMaxPloidy was returning -1 in the case where there are no genotypes, but the answer should be 0.
-- Previously VCF header lines of count type G assumed that the sample would be diploid.
-- Generalized the code to take a VariantContext and return the right result for G count types by calling into the correct numGenotypes in GenotypeLikelihoods class
-- renamed calcNumGenotypes to numGenotypes, which uses a static cache in the class
-- calcNumGenotypes is private, and is used to build the static cache or to compute on the fly for uncached No. allele / ploidy combinations
-- VariantContext calls into getMaxPloidy in GenotypesContext, which caches the max ploidy among samples
-- Added extensive unit tests that compare A and G type values in genotypes
-- allowMissingVCFHeaders is now part of -U argument. If you want specifically unsafe VCF processing you need -U LENIENT_VCF_PROCESSING. Updated lots of files to use this
-- LENIENT_VCF_PROCESSING disables on the fly VCF header cleanup. This is now implemented via a member variable, not a class variable, which I believe was changing the GATK behavior during integration tests, causing some files to fail that pass when run as a single test because the header reading behavior was changing depending on previous failures.
-- Just completely wrong.
-- BCF2 shadowBCF now checks that the shadow bcf can be written to avoid /dev/null.bcf problem
-- Added samtools ex2.bcf file for decoding to our integrationtests
-- MLAC and MLAF in PoolCaller now use standard MLE_AC and MLE_AF
-- VCFDiffableReader disables onTheFly fixing of VCF header fields so comparisons are easier when headers are changing
-- Flag fields with FLAG_KEY=0 are parsed as though FLAG_KEY were entirely absent in AbstractVCFCodec to fix bug where FLAG_KEY=0 was being translated into FLAG_KEY in output VCF, making a false flag value a true one
-- Fix the GT field value in VariantContextTestProviders so it isn't fixed 1000s of times during testing
-- Keys whose value is null are put into the VariantContext info attributes now
-- Created public static UnifiedGenotyper.getHeaderInfo that loads UG standard header lines, and use this in tools like PoolCaller
-- Created VCFStandardHeaderLines class that keeps standard header lines in the GATK in a single place. Provides convenient methods to add these to a header, as well as functionality to repair standard lines in incoming VCF headers
-- VCF parsers now automatically repair standard VCF header lines when reading the header
-- Updating integration tests to reflect header changes
-- Created private and public testdata directories (public/testdata and private/testdata). Updated tests to use test
-- SelectHeaders now always updates the header to include the contig lines
-- SelectVariants add UG header lines when in regenotype mode
-- Renamed PHRED_GENOTYPE_LIKELIHOODS_KEY to GENOTYPE_PL_KEY
-- Bugfix in BCF2 to handle lists of null elements (can happen in genotype field values from VCFs)
-- Throw error when VCF has unbounded non-flag values that don't have = value bindings
-- By default we no longer allow writing of BCF2 files without contig lines in the header
-- Moved GENOTYPE_KEY vcf header line to VCFConstants. This general migration and cleanup is on Eric's plate now
-- Updated HC to initialize the annotation engine in an order that allows it to write a proper VCF header. Still doesn't work...
-- Updating integration test files. Moved many more files into public/testdata. Updated their headers to all work correctly with new strict VCF header checking.
-- Bugfix for TandemRepeatAnnotation that must be unbounded not A count type as it provides info for the REF as well as each alt
-- No longer add FALSE values to flag values in VCs in VariantAnnotatorEngine. DB = 0 is never seen in the output VCFs now
-- Fixed bug in VCFDiffableReader that didn't differeniate between "." and "PASS" VC filter status
-- Unconditionally add lowQual Filter to UG output VCF files as this is in some cases (EMIT_ALL_SITES) used when the previous check said it wouldn't be
-- VariantsToVCF now properly writes out the GT FORMAT field
-- BCF2 codec explodes when reading symbolic alleles as I literally cannot figure out how to use the allele clipping code. Eric said he and Ami will clean up this whole piece of instructure
-- Fixed bug in BCF2Codec that wasn't setting the phase field correctly. UnitTested now
-- PASS string now added at the end of the BCF2 dictionary after discussion with Heng
-- Fixed bug where I was writing out all field values as BigEndian. Now everything is LittleEndian.
-- VCFHeader detects the case where a count field has size < 0 (some of our files have count = -1) and throws a UserException
-- Cleaned up unused code
-- Fixed bug in BCF2 string encoder that wasn't handling the case of an empty list of strings for encoding
-- Fixed bug where all samples are no called in a VC, in which case we (like the VCFwriter) write out no called diploid genotypes for all samples
-- We always write the number of genotype samples into the BCF2 nSamples header. How we can have a variable number of samples per record isn't clear to me, as we don't have a map from missing samples to header names...
-- Removed old filtersWereAppliedToContext code in VCF as properly handle unfiltered, filtered, and PASS records internally
-- Fastpath function getDisplayBases() in allele that just gives you the raw bytes[] you'd see for an Allele
-- Genotype fields no longer differentiate between unfiltered, filtered, and PASS values. Genotype objects are all PASS implicitly, or explicitly filtered. We only write out the FT values if at least one sample is filtered. Removed interface functions and cleaned up code
-- Refactored padAllele code from createVariantContextWithPaddedAlleles into the function padAllele so that it actually works. In general, **** NEVER COPY CODE **** if you need to share funcitonality make a function, that's why there were invented!
-- Increased the default number of records to read for DiffObjects to 1M
-- The GATK VCFWriter now enforces by default that all INFO, FILTER, and FORMAT fields be properly defined in the header. This helps avoid some of the low-level errors I saw in SelectVariants. This behavior can be disable in the engine with the --allowMissingVCFHeaders argument
-- Fixed broken annotations in TandemRepeat, which were overwriting AD instead of defining RPA
-- Optimizations to VariantEval, removing some obvious low-hanging fruit all in the subsetting of variants by sample
-- SelectVariants header fixes -- Was defining DP for the info field as a FORMAT field, as for AC, AF, and AN original
-- Performance optimizations in BCF2 codec and writer
-- using arrays not lists for intermediate data structures
-- Create once and reuse an array of GenotypeBuilders for the codec, avoiding reallocating this data structure over and over
-- VCFHeader (which needs a complete rewrite, FYI Eric)
-- Warn and fix on the way flag values with counts > 0
-- GenotypeSampleNames are now stored as a List as they are ordered, and the set iteration was slow. Duplicates are detected once at header creation.
-- Explicitly track FILTER fields for efficient lookup in their own hashmap
-- Automatically add PL field when we see a GL field and no PL field
-- Added get and has methods for INFO, FILTER, and FORMAT fields
-- No longer add AC and AF values to the INFO field when there's no ALT allele
-- Memory efficient comparison of VCF and BCF files for shadow BCF testing. Now there's no (memory) constraint on the size of the files we can compare
-- Because of VCF's limited floating point resolution we can only use 1 sig digit for comparing doubles between BCF and VCF
-- encodeTyped in BCF2Encoder now with specialized versions for int, float, and string, avoiding unnecessary intermediate list creation and dynamic type checking. encodeTypedMissing also includes inline operations now instead of using Collections.emptyList() version. Lots of contracts. User code updated to use specialized versions where possible
-- Misc code refactoring
-- Updated VCF float formating to always include 3 sig digits for values < 1, and 2 for > 1. Updating MD5s accordingly
-- Expanded testing of BCF2Decoder to really use all of the encodeTyped* operations
-- Cleanup a few contracts
-- BCF2FieldManager uses new VCFHeader accessors for specific info and format fields
-- A few simple optimizations
-- VCF header samples stored in String[] in the writer for fast access
-- getCalledChrCount() uses emptySet instead of allocating over and over empty hashset
-- VariantContextWriterStorage now creates a 1MB buffered output writer, which results in 3x performance boost when writing BCF2 files
-- A few editorial comments in VCFHeader
-- Replaced getAttributes with getDP() and not the old style getAttribute, where appropriate
-- Added getAnyAttribute and hasAnyAttribute that actually does the expensive work of seeing if the key is something like GT, AD or another inline datum, and returns it. Very expensive but convenient.
-- Fixed nasty subsetting bug in SelectVariants with excluding samples
-- Generalized VariantsToTable to work with new inline attributes (using getAnyAttribute) as well as GT
-- Bugfix for dropping old style GL field values
-- Added test to VCFWriter to ensure that we have the sample number of samples in the VC as in the header
-- Bugfix for Allele.getBaseString to properly show NO_CALL alleles
-- getGenotypeString in Genotype returns "NA" instead of null for ploidy == 0 genotypes
-- Cleanup some (but not all) VCF3 files. Turns out there are lots so...
-- Refactored gneotype parser from VCFCodec and VCF3Codec into a single shared version in AbstractVCFCodec. Now VCF3 properly handles the new GenotypeBuilder interface
-- Misc. bugfixes in GenotypeBuilder
-- As values in VCs are becoming their native Java types the VCFWriter needs to own proper float formating.
-- Created a smart float formatter in VCFWriter, with unit tests
-- Removed makePrecisionFormatStringFromDenominatorValue and its uses
-- Fix broken contracted
-- Refactored some code from the encoder to utils in BCF2
-- HaplotypeCaller's GenotypingEngine was using old version of subset to context. Replaced with a faster call that I think is correct. Ryan, please confirm.
-- FastGenotypes are the default in the engine. Use --useSlowGenotypes engine argument to return to old representation
-- Cleanup of BCF2Codec. Good error handling. Added contracts and docs.
-- Added a few more contacts and docs to BCF2Decoder
-- Optimized encodePrimitive in BCF2Encoder
-- Removed genotype filter field exceptions
-- Docs and cleanup of BCF2GenotypeFieldDecoders
-- Deleted unused BCF2TestWalker
-- Docs and cleanup of BCF2Types
-- Faster version of decodeInts in VCFCodec
-- BCF2Writer
-- Support for writing a sites only file
-- Lots of TODOs for future optimizations
-- Removed lack of filter field support
-- No longer uses the alleleMap from VCFWriter, which was a Allele -> String, now uses Allele -> Integer which is faster and more natural
-- Lots of docs and contracts
-- Docs for GenotypeBuilder. More filter creation routines (unfiltered, for example)
-- More extensive tests in VariantContextTestProfiler, including variable length strings in genotypes and genotype filters. Better genotype comparisons
-- decodeIntArray in BCF2 decoder allows us to more efficiently read ints and int[] from stream directly into Genotype object
-- Code cleanup / contracts added were appropriate
-- V2 will have a yet more optimized path...
-- Eliminated the large intermediate map from field name to list of list<Integer> values needed to create genotypes without the GenotypeBuilder. The new code is cleaner and simply fills in an array of GenotypeBuilders as it moves through the column layout in BCF2
-- Now we create once decoders specialized for each GT field (GT, AD, etc) that can be optimized for putting data into the GenotypeBuilder. In a subsequent commit these will actually use lower level BCF2 decoders to create the low-level ints and int[], avoiding the intermediate List<Integer> form
-- Reduced the amount of data further to be computed in the DiffEngine. The DiffEngine algorithm needs to be rethought to be efficient...
-- Builder now provides a depreciated log10pError function to make a new GQ value
-- Genotype is an abstract class, with most of the associated functions implemented here and not in the derived Fast and Slow versions
-- Lots of contracts
-- Bugfixes throughout
-- The way I was handling the contig offset ordering wasn't correct. Now the contigs are always indexed in the order in which their corresponding populate() functions are called, so that the order of the contigs is given by the order in which they are in the file, or in our refDict. It has nothing to do with the contig index itself.
-- SelectVariants no longers prints all samples to the screen if you aren't selecting any explicitly
-- Created a new Genotype interface with a more limited set of operations
-- Old genotype object is now SlowGenotype. New genotype object is FastGenotype. They can be used interchangable
-- There's no way to create Genotypes directly any longer. You have to use GenotypeBuilder just like VariantContextBuilder
-- Modified lots and lots of code to use GenotypeBuilder
-- Added a temporary hidden argument to engine to use FastGenotype by default. Current default is SlowGenotype
-- Lots of bug fixes to BCF2 codec and encoder.
-- Feature additions
-- Now properly handles BCF2 -> BCF2 without decoding or encoding from scratch the BCF2 genotype bytes
-- Cleaned up semantics of subContextFromSamples. There's one function that either rederives or not the alleles from the subsetted genotypes
-- MASSIVE BUGFIX in SelectVariants. The code has been decoding genotypes always, even if you were not subsetting down samples. Fixed!
Eric Banks
Mark DePristo
Guillermo del Angel