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Christoffer Sawicki qerub

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qerub /
Last active Nov 21, 2021
Useful macOS commands

How to list non-Apple kernel extensions

kextstat | egrep -v '\'

How to restart the computer without having to manually unlock FileVault

sudo fdesetup authrestart
qerub / httpsExchange.ts
Created Dec 18, 2016
[TypeScript] Dependency-free Promise-based Node.js HTTP client
View httpsExchange.ts
// Based on
import * as https from "https";
async function httpsExchange(requestOptions: https.RequestOptions): Promise<string> {
return new Promise<string>((resolve, reject) => {
const request = https.request(requestOptions, (response) => {
if (response.statusCode < 200 || response.statusCode > 299) {
reject(new Error("Non-2xx status code: " + response.statusCode));
qerub / lifx.yaml
Created Jun 25, 2016
First stab at a Swagger/OpenAPI specification for the LIFX API
View lifx.yaml
swagger: "2.0"
title: LIFX HTTP Remote Control API
version: v1
basePath: /v1
- https
qerub / properties.xml
Created Jun 25, 2016
Good starter properties for Java 8 and Maven
View properties.xml
qerub / lifx-http-api.clj
Last active Apr 3, 2016
[Clojure] Interacting with LIFX's HTTP API using schemas
View lifx-http-api.clj
(ns lifx-http-api
(:require [schema.core :as s]
[clj-http.client :as http]))
(def ^:dynamic *base-url* "")
(def ^:dynamic *auth-token* "<get yours at>")
qerub /
Last active Aug 29, 2015
Java 8: The Missing Parts, Chapter 1:
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import static;
import static;
public class Optionals {
qerub / fancy-defn.clj
Last active Aug 29, 2015
[Clojure] fancy-defn: Proof of concept of schema.core/defn augmented with automatically generated clojure.core.typed annotations via circle.schema-typer
View fancy-defn.clj
(ns fancy-defn
(:require [schema.core :as s]
[clojure.core.typed :as t]
[circle.schema-typer :as st]))
;; Schemas created with s/defn end up using this.
(defmethod st/convert schema.core.One [schema]
(assert (= false (:optional? schema))) ;; No support for optional arguments yet.
(st/convert (:schema schema)))
qerub / gist:96104c9844aa399b679e
Created Jul 28, 2014
Integrating Thrift's JSON serializer with Jackson
View gist:96104c9844aa399b679e
class ThriftSerializer extends JsonSerializer<TBase> {
public void serialize(TBase value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
try {
TProtocolFactory f = new TSimpleJSONProtocol.Factory();
String s = new TSerializer(f).toString(value);
catch (TException e) {
throw new IOException(e);
qerub /
Last active Aug 29, 2015
Bash script to exec program in given working directory
# Usage: /app /usr/bin/python
cd $1 && exec "${@:2}"
qerub /
Last active Nov 6, 2016
Useful Docker commands

How to remove dangling/untagged images

docker images -q -f dangling=true | xargs docker rmi

How to remove stopped/exited containers

docker ps -q -f status=exited | xargs docker rm