author: @sleepyfox
title: ZDD - Zero Dependency Development
date: 22-May-2023
import { ServerResponse, type IncomingMessage } from "node:http"; | |
import { Http2ServerRequest, Http2ServerResponse } from "node:http2"; | |
import { isArrayBufferView } from "node:util/types"; | |
const INTERNAL_BODY = Symbol("internal_body"); | |
const GlobalResponse = Response; | |
globalThis.Response = class Response extends GlobalResponse { | |
[INTERNAL_BODY]: BodyInit | null | undefined = null; |
from abc import ABC, abstractmethod | |
class PickleCache(ABC): | |
"""Cache Python objects on disk to save on API calls | |
Clients can treat this class like a key/value store. The fetch() method | |
must be overridden to fetch a value from the API for a specific key. | |
Then subclasses can be used as in this example: | |
cache = SubclassedPickleCache(filepath) |
#!/usr/bin/env bash | |
# useful for platforms that don't currently have GNU Parallel in their repo. | |
# does NOT work on Git Bash due to missing GNU Make etc. | |
# it builds on Cygwin, but may have runtime issues--give it a try. | |
set -e | |
curl -O ftp://ftp.gnu.org/gnu/parallel/parallel-latest.tar.bz2 |
Basically two types:
- Rectangles
- Circles
Let's say you have a drawing tool that permits both. Both geometry types benefit from some non-standard drawing abilities: it would be nice to resize circles, and it would be nice to resize rectangles in a way that keeps them rectangular. However, GeoJSON does not have circle or rectangle types. Both are represented as polygons. This gives us two options:
- "Detect" these shapes with a heuristic. This is doable for a rectangle by checking the corners, but much, much less doable for circles. Also, circles have an additional property that I will mention in the next bit.
<!-- | |
Install: | |
Copy this file into /layouts/shortcodes | |
Usage: | |
{{% mapml %}} | |
<mapml-viewer projection="OSMTILE" zoom="0" lat="0.0" lon="0.0" controls style="width:100%;height:400px"> |
For those who use Google Lens on Android as an OCR to capture text from images, screenshots, etc.. here is a bash script that does the same on Ubuntu.
Sometimes we need to copy a telephone number in an APP where there isn't a copy to clipboard feature enabled or maybe to copy texts from an picture.
This can be done with a OCR, this script does that allowing to drag&drop select a region of the screen and copy to clipboard the text parsed from the image.
#!/bin/bash
-- original source: https://medium.com/adhawk-engineering/using-postgresql-to-generate-slugs-5ec9dd759e88 | |
-- https://www.postgresql.org/docs/9.6/unaccent.html | |
CREATE EXTENSION IF NOT EXISTS unaccent; | |
CREATE OR REPLACE FUNCTION public.slugify(v TEXT) RETURNS TEXT | |
LANGUAGE plpgsql | |
STRICT IMMUTABLE AS | |
$function$ | |
BEGIN |
-- plpython needs to be enabled. Furthermore scipy needs to be installed in the python used. | |
-- CREATE LANGUAGE plpythonu; | |
CREATE OR REPLACE FUNCTION septima.voronoi(geom geometry, boundingpointdistance double precision) | |
RETURNS SETOF geometry_dump AS | |
$BODY$ | |
from scipy.spatial import Voronoi | |
import numpy | |
class GeoVoronoi: |
#/usr/bin/python | |
# http://exploreflask.com/en/latest/views.html | |
# https://stackoverflow.com/questions/51691730/flask-middleware-for-specific-route | |
# https://dev.to/rhymes/logging-flask-requests-with-colors-and-structure--7g1 | |
import logging | |
from logging.handlers import RotatingFileHandler | |
from flask import Flask, request, jsonify | |
from time import strftime |