xfthhxk

#!/usr/bin/env bb


;; NB. it can be helpful to do `sudo id` on the cmdline before running this script so that the privileged commands work
;;     Spire doesn't yet have the ability to ask for a password when sudo is used
;;
;;
;; This script is an example of how to use babashka and spire to automate project setup for local development.
;; Sets up the local development environment so that necessary software is installed and https can be used.
;; You would tailor it to your needs.

xfthhxk

#######################################################################
# 1. Generate public and private keys
#    ```shell
#    openssl genpkey -algorithm ED25519 -out ed25519.pem
#    openssl pkey -in ed25519.pem -pubout > ed25519.pem.pub
#    ```
# 2. Register the public key with the remote service
# 3. Ensure python requirements
#    ```shell
#    pip install requests cryptography

xfthhxk

/*
  # 1. Generate public and private keys
  #    ```shell
  #    openssl genpkey -algorithm ED25519 -out ed25519.pem
  #    openssl pkey -in ed25519.pem -pubout > ed25519.pem.pub
  #    ```
  # 2. Register the public key with the remote service
  # 3. Ensure node requirements
  #    ```shell
  #    npm install axios

xfthhxk

/*
  # 1. Generate public and private keys
  #    ```shell
  #    openssl genpkey -algorithm ED25519 -out ed25519.pem
  #    openssl pkey -in ed25519.pem -pubout > ed25519.pem.pub
  #    ```
  # 2. Register the public key with the remote service
  # 3. Compile
  #    ```shell
  #    javac DigitalSignature

xfthhxk

(ns digital-signature
  (:require [clojure.string :as str])
  (:import (java.security.spec PKCS8EncodedKeySpec X509EncodedKeySpec)
           (java.security PublicKey PrivateKey Signature KeyFactory KeyPairGenerator)
           (java.util Base64)))


(defn gen-key
  [pem algo]
  (let [priv-header "-----BEGIN PRIVATE KEY-----"

xfthhxk

(ns roaring-bitmap
  (:refer-clojure :exclude [contains? empty? min max seq])
  (:import (java.io
             DataInput
             DataOutput)
           (java.nio
             ByteBuffer)
           (org.roaringbitmap
             Container
             ContainerPointer

xfthhxk

(ns test-db
  "Example of using testcontainers and launching a postgres container with flyway migrations.
  NB. databases are created but not destroyed which can be handy for debugging tests.
  * Connecting to template1 from psql for example will cause create database to fail
  * Based on ideas from https://github.com/opentable/otj-pg-embedded"
  (:require [clj-test-containers.core :as tc]
            [clojure.java.jdbc :as jdbc]
            [clojure.string :as str])
  (:import (org.flywaydb.core
            Flyway)))

xfthhxk

(ns aes256gcm
  (:require ["crypto" :as crypto]
            [clojure.string :as str]))

(defn url-safe-base64-encode
  [s]
  (-> s
      (str/replace "+" "-")
      (str/replace "/" "_")))

xfthhxk

(ns tree-traversals)

(def tree
  {:item 8
   :left {:item 3
          :left {:item 1
                 :left nil
                 :right nil}
          :right {:item 6
                  :left {:item 4

xfthhxk

(ns graph)

(def graph
  {:A {:children #{:E :B}
       :population 200
       :id :A}
   :B {:children #{:A :C :E}
       :population 300
       :id :B}
   :C {:children #{:B :D}