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edthrn / redis.clj
Created Feb 20, 2021 — forked from ragnard/redis.clj
Using Redis for persistent memoization of Clojure functions
View redis.clj
(ns util.redis
(:refer-clojure :exclude [memoize])
(:require [taoensso.carmine :as car]))
;; boilerplate stuff that is not in Carmine
(def ^:dynamic ^:private *pool*)
(def ^:dynamic ^:private *spec*)
(defmacro with-redis
@edthrn
edthrn / remove-from-git.sh
Created Feb 10, 2021
Remove old data from Git repo and Git history
View remove-from-git.sh
# Taken from https://docs.github.com/en/github/authenticating-to-github/removing-sensitive-data-from-a-repository
# Warning:
# --------
# All stashes may be lost!
PATH_TO_REMOVE=big-folder/commited/by/error
# 1. Force Git to process, but not check out, the entire history of every branch and tag
# 2. Remove the specified file, as well as any empty commits generated as a result
@edthrn
edthrn / pw.sh
Last active Nov 20, 2019
Put a password stored in `1password` to clipboard
View pw.sh
# Usage: ./pw.sh Github.com
op get item $1 | jq -r '.details.fields[] | select(.designation=="password").value' | xclip -selection c
@edthrn
edthrn / humansorted.py
Last active Aug 16, 2019
Sorting for humans with Python
View humansorted.py
# Inspired by https://blog.codinghorror.com/sorting-for-humans-natural-sort-order/
# Adding a `key` argument so we can expect the same behaviour as the builtin `sorted`
import re
def humansorted(seq, key=None):
"""Return the sequence in the order that a human being expects.
If `key` is provided, as per the built-in `sorted` function, it must be a
callable that accepts a single argument.
@edthrn
edthrn / execute.py
Last active May 7, 2020
Execute Shell command on EC2 Linux instance with Python and Boto3
View execute.py
# Following https://stackoverflow.com/questions/34028219/how-to-execute-commands-on-aws-instance-using-boto3
import boto3
ssm = boto3.client('ssm')
response = ssm.send_command(
InstanceIds=['i-abcde12345...'],
DocumentName='AWS-RunShellScript',
Parameters={'commands': ['echo "This command ran on $(date)"']
)
@edthrn
edthrn / sync-postgres-db.md
Last active Jul 23, 2019
Sync content from one Postgres database to another
View sync-postgres-db.md

Say we have a database A hosted at my.first.database.com loaded with data, and we want to replicate this data over database B, located at my.second.database.com. We suppose database A and B have identical schemas, and both databases are accessible via port 5432.

Dump content from database A

 pg_dump --data-only \
 -h my.first.database.com \
 -U {database_user} \
 -f /tmp/dump.sql \
 -T={table pattern to exclude [optional]} \
@edthrn
edthrn / execute_shell_ec2.py
Last active Jun 23, 2019
Execute shell commands in EC2 with SSM
View execute_shell_ec2.py
"""
https://aws.amazon.com/blogs/aws/manage-instances-at-scale-without-ssh-access-using-ec2-run-command/
https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ssm.html
https://stackoverflow.com/questions/34028219/how-to-execute-commands-on-aws-instance-using-boto3
"""
import boto3
# Need AWS credentials in ~/.aws...
ssm = boto3.client('ssm')
View TODO.md

Guidelines

Implement a Vector class. It should take an undefenite amount of parameters and behave like this:

>>> v1 = Vector(5, 9, -8, 2, 13, -23, 0, 0, 12)
>>> v2 = Vector(6, 8)
>>> v3 = Vector(-1, 1, 1, -1)
>>> v4 = Vector(0, 0, 0)
@edthrn
edthrn / install-hadoop.sh
Last active Apr 10, 2019
A Bash script to automate Hadoop installation.
View install-hadoop.sh
#!/bin/bash
# MIT License
# Copyright (c) 2019 nibble.ai
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
@edthrn
edthrn / reduce_pdf_size.sh
Created Apr 3, 2019
Reduce PDF size from Ubuntu command-line
View reduce_pdf_size.sh
#!/bin/sh
# From https://askubuntu.com/a/626301
gs \
-sDEVICE=pdfwrite \
-dCompatibilityLever=1.4 \
-dPDFSETTINGS=/default \
-dNOPAUSE \
-dQUIET \
-dBATCH \