thinhha

# See https://pre-commit.com/ for usage and config
files: '^(src|tests|scripts)\/\S*'
repos:
- repo: local
  hooks:
  - id: trailing-whitespace
    name: trailing whitespace
    stages: [commit]
    language: system
    entry: trailing-whitespace-fixer

thinhha

# Install sandboxfs
sudo apt install libfuse2
curl -Lo /tmp/sandboxfs-0.2.0.tgz https://github.com/bazelbuild/sandboxfs/releases/download/sandboxfs-0.2.0/sandboxfs-0.2.0-20200420-linux-x86_64.tgz
sudo tar xzv -C /usr/local -f /tmp/sandboxfs-0.2.0.tgz
rm /tmp/sandboxfs-0.2.0.tgz
sandboxfs

# Install Python dependencies
sudo apt-get update; sudo apt-get install make build-essential libssl-dev zlib1g-dev \
libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm \

thinhha

CREATE OR REPLACE FUNCTION udf_sql.uint64be(x INT64) RETURNS BYTES AS (
    CAST((SELECT STRING_AGG(FORMAT("%x",x >> bit & 0x1), "" ORDER BY bit DESC)
   FROM UNNEST(GENERATE_ARRAY(0, 63)) AS bit) AS BYTES)
)
;

CREATE OR REPLACE FUNCTION udf_sql.custom_hash(input BYTES, is_leaf BOOLEAN, depth INT64) RETURNS BYTES AS (
  SHA256( CASE WHEN is_leaf THEN b'0x00' ELSE b'0x01' END || udf_sql.uint64be(depth) || input )
)
;

thinhha

thinhha

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",

thinhha

Keybase proof

I hereby claim:

• I am thinhha on github.
• I am ttha (https://keybase.io/ttha) on keybase.
• I have a public key ASBqxBdGll1GQg5uJY5Wh1Zqw1b74Zg1-z30lfUi4Vcp9Qo

To claim this, I am signing this object: