Jim Jeffers jimjeffers

Software development engineer in Portland, OR. Loves react, node, rails, and python. Working on bots and mobile apps these days.

jimjeffers / split_fastq.py

Created March 25, 2026 22:07

Split FASTQ(.gz) files into gzip chunks that stay under a size target.

	#!/usr/bin/env python3
	"""Split FASTQ(.gz) files into gzip chunks that stay under a size target.

	This script is intended for customer-facing support workflows where a user needs
	smaller `.fastq.gz` files for re-upload. It works on record boundaries and can
	split paired-end R1/R2 inputs with identical record counts per chunk.

	Because gzip compression ratio varies across reads, the script keeps a safety
	margin below the requested maximum and rotates once the current chunk approaches
	that threshold. The default settings target 200 MB output chunks with a 5 MB

jimjeffers / withCallback.ts

Created April 4, 2020 19:56

	const handleCompletedUploaded: HandleFileUploadFn = useCallback(async preview => {
	const normalizedPreviews = mergePreviewsToState([{ ...preview, status: FileUploadStatus.Available }], localPreviews)
	setLocalPreviews(normalizedPreviews)
	await savePreviews(normalizedPreviews)
	}, [mergePreviewsToState, localPreviews, setLocalPreviews])

jimjeffers / withOutEffect.ts

Created April 4, 2020 19:30

	const [localPreviews, setLocalPreviews] = useState({} as INormalizedPreviews)

	const handleCompletedUploaded: HandleFileUploadFn = async preview => {
	const normalizedPreviews = mergePreviewsToState([{ ...preview, status: FileUploadStatus.Available }], localPreviews)
	setLocalPreviews(normalizedPreviews)
	}

jimjeffers / withEffect.ts

Last active April 4, 2020 19:56

	// Track a completed download and use an effect to update the status
	// of the associated upload via the latest component state.
	const [finishedDownload, setFinishedDownload] = useState(null as string \| null)
	useEffect(() => {
	if (!finishedDownload) { return }
	const updatedPreview = localPreviews[finishedDownload]
	if (localPreviews[finishedDownload].status !== FileUploadStatus.Available) {
	const normalizedPreviews = mergePreviewsToState([{ ...updatedPreview, status: FileUploadStatus.Available }], localPreviews)
	setLocalPreviews(normalizedPreviews)
	const save = async () => {

jimjeffers / forecasts.xml

Created February 21, 2018 17:58

Proposed forecast schema.

	<?xml version="1.0" encoding="UTF-8"?>
	<data>
	<time>9:12 AM</time>
	<forecaster>M. Graves</forecaster>
	<discussion>This week will be winter-like in Yuma as cold air remains settled over the region; High temperatures will stay in the low-mid 60s. Normal for this time of year is 75 degrees F. The main day of interest this week is Friday, on which breezy winds out of the northwest are forecast. Blowing dust may be possible on Friday and therefore the PM-10 (dust) forecast has been bumped up into the Moderate Air Quality (AQI) category to reflect this. PM-10 may increase again on Sunday with breezy northerly winds as well. Ozone is forecast to stay in the Good AQI category through this forecast period. We'll keep an eye out for any changes in the wind forecast later this week.<br/><br/>Check back tomorrow for the next Yuma air quality forecast.</discussion>
	<forecasts>
	<forecast>
	<date>2/21/2018</date>
	<day>WED</day>
	<aqivalue>46</aqivalue>

jimjeffers / states.php

Created November 30, 2017 18:07

	<body>
	<svg id="map" xmlns:xlink="http://www.w3.org/1999/xlink" width="671" height="367">
	<g>
	<g id="states">
	<a id="s01" class="<?php the_field('al_legal'); ?>" href="http://dispensarypermits.com/united-states-marijuana-dispensary-laws/open-a-dispensary-in-alabama/">
	<path d="M446.5848460941517,216.26501324764592L464.81286038377675,214.2603543573807L468.10323765853497,225.08860445900154L472.8937074082319,241.00178951997543L474.61008720683344,244.42048722827803L476.0625626818386,246.29743631830007L475.76722830026273,247.62689856030931L477.10805089685584,248.22910918121545L475.5070201786913,250.09623188502263L475.7873316078113,251.70362228164615L475.13993857965056,254.0096380222493L476.7334995824955,257.72478632149034L476.4216558002466,261.1981977477231L478.0945121552954,264.54108080067283L472.72709714484995,265.33683005517673L449.7452897425235,268.119261782702L449.57058192002177,269.8466738984158L452.3066137029198,272.0345007925466L452.1205917477962,274.1896880002505L453.08275860861545,275.148983180

jimjeffers / Lookup.js

Last active July 22, 2017 15:47

Naive object look up.

	const get = (target, path) => path.split(".").reduce((value, key) => value ? value[key] : value, target)

	const a = {
	b: {
	c: {
	d: "result!"
	}
	}
	}

jimjeffers / async_completion.js

Last active July 13, 2017 18:31

Generator + Promises === Shared Async Completion

	/**
	All of the intervals which call the pollDate() function
	after different time intervals will resolve with similar
	qualifying times thanks to managed state in the *fetchDate()
	generator function.
	*/

	function* fetchDate() {
	var isFetching = false
	var date = 0

jimjeffers / TrelloInterviewProblem.swift

Created December 12, 2015 20:29

	/**

	Solution to an interview question posted by trello. I came across the link
	not actually looking for a job but I love puzzles. So I went ahead and solved
	it :)

	Decrypts a value hashed by the following Pseudo code:

	Int64 hash (String s) {
	Int64 h = 7

jimjeffers / QueryDataTask.java

Last active September 1, 2015 00:56

	private class QueryDataTask extends AsyncTask<Void, Void, DataReadResult> {
	@Override
	protected void onPreExecute() {
	super.onPreExecute();
	Log.d(TAG, "Executing query task");
	}

	protected DataReadResult doInBackground(Void... params) {
	Calendar date = new GregorianCalendar();
	date.set(Calendar.HOUR_OF_DAY, 0);