marcelm / marcelm/cutadapt

When demultiplexing, report contains irrelevant line

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Python
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Description

Via #758

When demultiplexing like this:

cutadapt -g ^ACGT -g ^CCAA -o "out.{name}.fastq" tests/data/simple.fastq

The report contains this line:

Reads discarded as untrimmed:                0 (0.0%)

However, that line should only be printed when --discard-untrimmed was used.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by running the demultiplexing command shown in the issue and inspect the generated report. Trace the report-generation entry point responsible for “Reads discarded as untrimmed”; done means that line appears only when --discard-untrimmed is supplied, while other report output remains unchanged.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
cli
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
45/100

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