v1.1.0

Big thanks to @mbhall88 for submitting #5 with the following improvements!

Added

• -o shorthand option for --outdir
• a flag -F/--only-provider, which supercedes --sra_only. I left --sra_only in there for backwards compatibility and added a deprecation notice in the help description for it.
• Conda environment file
• Dockerfile. Feel free to try out an image from my quay.io repo here.

Changed

• Move everything into a main function to avoid variable shadowing
• Provider is now optional and defaults to ena. I've also made the option case insensitive, rather than listing the cased versions of the available providers
• If ENA download fails, try SRA
• Reduced a bunch of execute calls which were mostly operations easily dealt with by pathlib.Path
• Changed md5sum to use hashlib.md5 instead of executing a subprocess call to md5sum
• Moved a bunch of import statements out of function bodies to the top of the file

Removed

• Docstring at top of file as this is a mirror of argparse's help menu and creates needless maintenance