lpenaud

Mediainfo

Mediainfo comes in handy for printing information from media files; however, some features, like --Output, are poorly documented or unclear.

Human readable tracklist

mediainfo --Output="General;%Track/Position%. %Title% - %Duration/String%\n" *.flac

lpenaud

Gnu / Linux

Lsof

Lsof est un programme qui permet de lister les flux d'entrée / sortie comme l'ouverture d'un fichier, d'un socket ou l'écoute d'un port...

Exemple

Lister les processus qui écoute un port en particulier

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#!/bin/bash
# Usage: ./backup-jellyfin.sh

declare -r tar_name="${HOME}/jellyfin.tar"

sudo systemctl stop jellyfin.service
echo "tar -cf "${tar_name}" /var/lib/jellyfin"
sudo tar -cf "${tar_name}" /var/lib/jellyfin
sudo chown -v "${USER}:${USER}" "${tar_name}"
sudo systemctl start jellyfin.service

lpenaud

export interface TreeXmlNode {
  name: string;
  content: string;
  children: TreeXmlNode[];
}

export interface XmlMark {
  name: string;
  content: string;
  type: symbol;

lpenaud

All of futures

Create futures from list and function.

Usage

final var list = List.of('A', 'B', 'C');
AllOfFutureHelpers.<> builder()
 .function(e -&gt; someIOFunction(e))

lpenaud

import java.util.LinkedList;
import java.util.List;

import org.mockito.ArgumentMatcher;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

import lombok.AllArgsConstructor;
import lombok.Setter;

lpenaud

From number of mapping

Java 19 add newHashMap(int) to HashMap and LinkedHashMap.

See: Java doc HashMap

Calculate capacity from load factory

private static final short DEFAULT_LOAD_FACTOR = .75;

lpenaud

Split cue file to flac tracks

Dependencies

• flac
• shnsplit
• file

Optional dependencies

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Backup files with rsync

Incremental backup

rsync -a --delete -Pau INDIR [INDIRS...] OUTDIR

• -a: Archive mode copy the access rights.
• --delete: Remove files if there aren't in the source directory anymore.

lpenaud

<script type="module">
  import mermaid from 'https://cdn.jsdelivr.net/npm/[email protected]/dist/mermaid.esm.min.mjs';
  mermaid.initialize({ startOnLoad: false });
  await mermaid.run({
    nodes: document.querySelectorAll('pre.mermaid > code:first-child'),
  });

  function findMermaidSvg(child) {
    if (child.tagName === "A" || child.tagName === "BUTTON") {
      return null;