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Doing stuff

Srinath Sankar Checksum

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Doing stuff
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Checksum / twitter.js
Last active March 11, 2024 10:41
StopTheMadness user scripts
// Remove posts marked as "Ad"
(() => {
const adSel = `[data-testid=placementTracking]`
const targetNode = document.querySelector(`body`)
const observer = new MutationObserver((mutations) => {
for (const m of mutations) {
m.addedNodes.forEach(node => {
if (ad = node.querySelector(adSel)) {
ad.remove();
}
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Checksum / websocket_proxy.js
Last active February 25, 2024 20:46
Intercepting WebSockets in the browser using JavaScript
const WebSocketProxy = new Proxy(window.WebSocket, {
construct(target, args) {
console.log("Proxying WebSocket connection", ...args);
const ws = new target(...args);
// Configurable hooks
ws.hooks = {
beforeSend: () => null,
beforeReceive: () => null
};
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Checksum / postgresql-event-trigger.sql
Created August 1, 2018 07:20
Automatically create column on new tables using PostgreSQL event triggers
-- Function to automatically create a user_id column for new tables with name starting with user_
create or replace function create_user_id_column()
returns event_trigger
language plpgsql volatile as
$$
declare
obj record;
identity text[];
begin
for obj in select * from pg_event_trigger_ddl_commands()
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Checksum / assert.jq
Last active December 29, 2023 17:09
Assertion library for jq
# A simple assertion library for jq (https://github.com/stedolan/jq)
# Author: Srinath Sankar
def assert(level; expr; msg):
if expr then
.
else
. |= . + [{ level: level, message: msg }]
end;
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Checksum / .zshrc.local.sh
Last active November 22, 2023 23:30
zshrc.local
# git
alias gs='git status'
alias gd='git diff'
alias gds='git diff --staged'
alias gcom='git checkout master'
alias gco='git checkout'
alias gp='git pull'
alias git-deleted='git log --diff-filter=D --summary'
# utils
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Checksum / neolink.log
Last active May 1, 2023 06:40
Neolink error log
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Checksum / Canvas_Viewport.html
Created February 25, 2012 08:19
Fit canvas to viewport size for mobile devices
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Fit canvas to viewport for mobile devices</title>
<style>
* {
margin: 0;
padding: 0;
}
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Checksum / redis-helpers.lua
Created March 23, 2022 03:59
Redis Lua helpers
local function key_patterns()
local uniq = {}
for _, key in ipairs(redis.call('keys', '*')) do
local pattern = string.match(key, "(.-):")
if pattern ~= nil and pattern ~= "" then
if uniq[pattern] == nil then
table.insert(uniq, pattern)
uniq[pattern]=1
else
uniq[pattern]=uniq[pattern]+1
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Checksum / snippets.sh
Last active November 18, 2021 02:45
Bash snippets
#!/bin/bash
# Dynamic bracket expansion
eval echo "{1..3}"
eval echo "foo-{bar,baz}-{1..3}"
# Merge JSON objects
merged="$(jq -ers '.[0] * .[1]' <(echo '{"name": "foo"}') <(echo '{"age": "baz"}') 2>/dev/null)"
# Check if string is valid JSON
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Checksum / diff-patch.jq
Last active August 26, 2021 01:04
JSON diff and patch for jq
# JSON diff and patch for jq (https://stedolan.github.io/jq/)
# Author: Srinath Sankar
#
# Usage:
# diff: jq -sS 'include "diff-patch"; diff' a.json b.json > patch.json
# patch: jq -sS 'include "diff-patch"; patch' a.json patch.json
#
# Caveats: tested only with top level objects using jq 1.6
def flatten_obj: