Connect to encodeproject.org hub

[cmdcolin]

encode project.org has dynamically generated trackhubs

https://www.encodeproject.org/batch_hub/type%3DExperiment%2C%2Creplicates.library.biosample.donor.organism.scientific_name%3DHomo%2Bsapiens%26biosample_ontology.organ_slims%3Dheart%26assay_title%3DTF%2BChIP-seq%26files.file_type%3DbigWig%26assembly%3Dhg19/hub.txt

It currently throws an error on parent track lacking a shortLabel

So going to here, selecting visualize, automatically can open up a UCSC link

https://www.encodeproject.org/search/?type=Experiment&replicates.library.biosample.donor.organism.scientific_name=Homo+sapiens&biosample_ontology.organ_slims=heart&assay_title=TF+ChIP-seq&files.file_type=bigWig&assembly=hg19

[garrettjstevens]

It looks like the trackDb in this hub has some good examples of how the trackDb spec doesn't always line up with how the UCSC genome browser uses trackDbs. The spec says shortLabel is always required in any track stanza, but loading this up in the UCSC browser shows that shortLabel is not required on composite parent track stanzas.

[cmdcolin]

In autoSql, I experienced similar things where the nicely defined "autoSql grammar" created by the UCSC group is not compliant even by files on ucsc.org. It may be better to try to allow what is in the wild, unless we want to make a plea for the "standard" compliance to https://github.com/ENCODE-DCC