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mikeball / core.clj
Last active June 3, 2020 13:22
Postgres listen/notify in Clojure using http://impossibl.github.io/pgjdbc-ng/
; Postgres listen/notify in Clojure using http://impossibl.github.io/pgjdbc-ng/
; in project.clj dependencies
; [com.impossibl.pgjdbc-ng/pgjdbc-ng "0.5"]
(ns pglisten.core
(:import [com.impossibl.postgres.jdbc PGDataSource]
[com.impossibl.postgres.api.jdbc PGNotificationListener]))
@mikeball
mikeball / example.clj
Created February 10, 2016 09:52
Flatten nested maps to csv
(def json-raw
[{"type" "t1"
"weather" { "lat" 1
"lon" 2}}
{"type" "t2"
"weather" { "lat" 3
"lon" 4
"abc" {"xyz" 5}}}])
@mikeball
mikeball / avoid-nesting.clj
Last active May 26, 2016 18:19
Avoid nesting if statements using a short circuited threading macro.
(defmacro short->
"Short circuit pipeline/threading operator that shorts on given condition."
[init & steps-and-conditions]
(let [check (-> (take-last 2 steps-and-conditions)
((fn [conditions] (if-not (and (= (count conditions) 2)
(= (first conditions) :on))
(throw (Exception. "Invalid conditions function syntax."))
(second conditions)))))
@mikeball
mikeball / solus-backup.adoc
Last active September 25, 2016 06:14

How to Backup your Solus to S3

This guide will show you how to back up, and restore, your important data to Amazon S3 fully encrypted.

Install deja-dup

Install deja-dup from the Software Center

@mikeball
mikeball / Program.fs
Created February 13, 2017 09:00
F#, dotnet core and postgreql query
open System
open Npgsql
type Category = {
id: int;
name: string
}
let categoriesSQL = "
@mikeball
mikeball / cljs-installation.md
Last active June 28, 2017 20:39
CLJS Installation

CLJS Setup

This guide is intended to help you get started with CLJS.

An important note: CLJS is best experienced when developing and testing interactively against a live running instance of your application. In this way it's different than most other languages which use an edit/compile/restart method of working. While it is technically possible to use an edit/compile/restart workflow, if you use it with CLJS, you're gonna have a bad time.

Tools Installation

{Embedded Video of Tools Installation}

@mikeball
mikeball / cljs-config-for-multiple-outputs.cljs
Last active June 18, 2017 00:22
{
:builds
{:tool
{:src ["src"]
:compiler {:main "tool.core"
:target :nodejs
:optimizations :simple
:output-to "target/tool.js"}}
@mikeball
mikeball / SOLUS_2017-09-10T04_24_41_517Z-debug.log
Last active September 10, 2017 07:09
cat /root/.npm/_logs/2017-09-10T04_24_41_517Z-debug.log
0 info it worked if it ends with ok
1 verbose cli [ '/usr/bin/node',
1 verbose cli '/usr/bin/npm',
1 verbose cli 'install',
1 verbose cli '-g',
1 verbose cli 'https://github.com/reasonml/reason-cli/archive/beta-v-1.13.6-bin-linux.tar.gz' ]
2 info using npm@5.4.1
3 info using node@v8.4.0
4 verbose npm-session 0543e7aa71cf9ceb
@mikeball
mikeball / UBUNTU16.04_2017-09-10T06_57_33_782Z-debug.log
Last active September 10, 2017 07:09
cat /home/mike/.npm/_logs/2017-09-10T06_57_33_782Z-debug.log
0 info it worked if it ends with ok
1 verbose cli [ '/usr/bin/nodejs',
1 verbose cli '/usr/bin/npm',
1 verbose cli 'install',
1 verbose cli '-g',
1 verbose cli 'https://github.com/reasonml/reason-cli/archive/beta-v-1.13.7-bin-linux.tar.gz' ]
2 info using npm@5.3.0
3 info using node@v8.4.0
4 verbose npm-session f664dd009f0ec190
@mikeball
mikeball / gist:63b545702f21a9fb319d59e7ab72653a
Last active March 5, 2018 18:16

~/.clojure/deps.edn file

 {:1.8 {:override-deps {org.clojure/clojure {:mvn/version "1.8.0"}}}
  :1.9 {:override-deps {org.clojure/clojure {:mvn/version "1.9.0"}}}
  :master {:override-deps {org.clojure/clojure {:mvn/version "1.10.0-master-SNAPSHOT"}}}
  :test {:extra-paths ["test"]}
  :bench {:extra-deps {criterium {:mvn/version "0.4.4"}}}
 :proto {:extra-deps {proto-repl {:mvn/version "RELEASE"}}}