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Denis Nelubin gelin

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@gelin
gelin / matplotlib.ipynb
Last active June 24, 2017 15:36
matplotlib examples
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@gelin
gelin / print-badge_2x2
Last active September 20, 2019 04:01
Print 4 badges on a long sticker
#!/bin/sh
set -e
PRINTER="/dev/usb/lp0" # the printer device
FORCE=false
DIRECTION=1 # 1 - human-friendly, 0 - paper-friendly
DOTS_MM=8 # printer dots per mm, 8 == 203 dpi
@gelin
gelin / setup.json
Created February 20, 2020 13:15
Ansible Setup module run on Vagrant Ubuntu machine
{
"ansible_facts": {
"ansible_all_ipv4_addresses": [
"172.17.42.1",
"10.0.2.15",
"10.40.20.2"
],
"ansible_all_ipv6_addresses": [
"fe80::486d:2dff:fe59:74a2",
"fe80::5484:7aff:fefe:9799",
@gelin
gelin / snippet.html
Created February 20, 2020 13:21
InfluxDB query and chart with Rickshaw
<html>
<head>
<title>Test charts</title>
<script src="http://code.jquery.com/jquery-2.1.4.min.js" type="text/javascript"></script>
<script src="http://d3js.org/d3.v3.min.js" type="text/javascript"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/rickshaw/1.5.1/rickshaw.min.js" type="text/javascript"></script>
<script src="index.js" type="text/javascript"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/rickshaw/1.5.1/rickshaw.min.css" media="screen" rel="stylesheet" type="text/css">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css" media="screen" rel="stylesheet" type="text/css">
@gelin
gelin / snippet.kt
Created February 20, 2020 13:35
Type inference in Kotlin for Android
//Java
newIntent.setData(intent.getParcelableExtra(Intent.EXTRA_STREAM)); //compilation error
newIntent.setData(intent.<Uri>getParcelableExtra(Intent.EXTRA_STREAM)); //explicit type declaration
newIntent.setData((Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM)); //explicit type cast
//Kotlin
newIntent.setData(intent.getParcelableExtra(Intent.EXTRA_STREAM)) //implicit type inference!
val stream = intent.getParcelableExtra(Intent.EXTRA_STREAM) //compilation error
val stream : Uri = intent.getParcelableExtra(Intent.EXTRA_STREAM) //explicit type inference
newIntent.setData(stream)
@gelin
gelin / Hex.kt
Last active February 20, 2020 13:36
Extension functions to format bytes as Hex values in Kotlin
package ru.gelin.kotlin.util.hex
import java.security.MessageDigest
import kotlin.test.assertEquals
/**
* Extension functions to format bytes as Hex values.
*/
/**
@gelin
gelin / DateTimeFormatTest.java
Created February 20, 2020 15:31
import org.junit.Test;
import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import static org.junit.Assert.assertEquals;
@gelin
gelin / cp4prology.py
Created February 20, 2020 15:32
Copy/convert audio files to car audio: convert file to mp3, apply mp3gain, convert tags to ascii
#!/usr/bin/python
# -*- coding: utf-8 -*-
from __future__ import print_function
import sys
import os
import os.path
import shutil
import subprocess
import glob
@gelin
gelin / GenericsTest.java
Created February 20, 2020 15:34
Small test for generic method to return parametrized type
import java.util.HashMap;
import java.util.Map;
// http://stackoverflow.com/questions/3437897/how-to-get-a-class-instance-of-generics-type-t
public class GenericsTest {
public static class MyClass extends Object {
}
@gelin
gelin / IocKeySample.java
Created February 20, 2020 15:35
import java.util.HashMap;
import java.util.Map;
public class IocKeySample {
public static class Key<T> {
private final String key;
private Key(String key) {