Web launch tool previews JSON with quotes

[ewels]

The web launch final JSON preview wraps non-string entities in quotes. If copied into a params file for Nextflow, this breaks with the new schema validation code as that checks variable types and complains that everything is a string.

Steps to reproduce:

• Clicking Launch on a pipeline such as nf-core/eager
• Fill in the form, setting some boolean and numeric values
• Check the Launch parameters saved page after submission - preview JSON has quotes around booleans and numeric fields:

For example:

{
    "run_bam_filtering": "true",
    "bamutils_clip_half_udg_left": "2"
}

Should be:

{
    "run_bam_filtering": true,
    "bamutils_clip_half_udg_left": 2
}

If running nf-core launch --id xxx to pull these results, they go via the command line tools and the correct types seem to be used in the output JSON (though that has its own problems still!).

[mashehu]

oh, I think I fixed the number parsing for the builder, but didn't know that the launch does a similar thing: https://github.com/nf-core/nf-co.re/pull/565/files. We solved the boolean parsing there with: https://github.com/mashehu/nf-co.re/blob/master/public_html/assets/js/nf-core-schema-builder.js#L388-L396. Something similar should work here.

[mashehu]

Tested it now and seems to be fixed.