joseluisq

How to save space on disk removing ArchLinux Pacman packages cache

1. Check out how many space is taken by Pacman packages cache

ls /var/cache/pacman/pkg/ | wc -l
# 13886
du -sh /var/cache/pacman/pkg/
# 61G	/var/cache/pacman/pkg/

joseluisq

Renew GPG key

Given that your key has expired.

$ gpg --list-keys
$ gpg --edit-key KEYID

Use the expire command to set a new expire date:

joseluisq

export function slugify (text: string, separator = "-", ampersand = "and") {
    const a = "àáäâèéëêìíïîòóöôùúüûñçßÿỳýœæŕśńṕẃǵǹḿǘẍźḧ"
    const b = "aaaaeeeeiiiioooouuuuncsyyyoarsnpwgnmuxzh"
    const p = new RegExp(a.split("").join("|"), "g")

    return text.toString().toLowerCase()
        // Replace whitespaces and underscores with single hyphens
        .replace(/[\s_]+/g, separator)
        // Replace special chars
        .replace(p, (c) => b.charAt(a.indexOf(c)))

joseluisq

How to get just the name of first Docker service running

Following command will get just the name of the first Docker service running (usually the last one deployed) of a list of N services with running/shutdown/etc status.

Format name: service_name.N.ID

docker service ps my_service_name \
    --no-trunc --format="{{.Name}}.{{.ID}}/{{.DesiredState}}" | grep "Running" | cut -f1 -d "/" | head -n1
# my_service_name.1.abcd1v23ui456pyu7lx8k9fze

joseluisq

version: "3"
services:
  telegraf:
    image: telegraf:1.14-alpine
    environment:
      HOST_ETC: /hostfs/etc
      HOST_PROC: /hostfs/proc
      HOST_SYS: /hostfs/sys
      HOST_MOUNT_PREFIX: /hostfs
    volumes:

joseluisq

This is an opinioned benchmark that I have made for testing some Rust web frameworks focus on static-file serving feature using the minimal code that every framework provides.
Yes! This can vary per use case and is just another "benchmark".
-------------------------------------

OS: Arch Linux
Kernel: Linux 5.6.2-arch1-2 x86_64 

------
$ rustc -vV
rustc 1.42.0 (b8cedc004 2020-03-09)

joseluisq

;; Emit a warning when Emacs version is not greater or equal to 24.1
(when (and (<= emacs-major-version 24) (< emacs-minor-version 1))
  (warn (format "\
Emacs v%s.%s is not supported for this configuration. Try to upgrade to v24.1+." emacs-major-version emacs-minor-version)))

;; Continue installing MELPA packages etc...

joseluisq

#!/usr/bin/env bash

set -e
set -u

if [ -f .env ]; then
    export $(cat .env | xargs)
else
    echo ".env file not found"
fi

joseluisq

#!/bin/bash

# For customize the writeout take a look at https://ec.haxx.se/usingcurl/usingcurl-verbose/usingcurl-writeout

curl -Skw "\
CURL download file testing\n\
==========================\n\
URL:                    %{url_effective}\n\
Response code:          %{response_code}\n\
Download size:          %{size_download}B\n\

joseluisq

XPath v1.0 searching

Search all attributes in a xml node

//my-node/attribute::*

Search all namespaces in a xml node