est31

Announcing cargo-udeps

One of the biggest issues that most people have with Rust are the long compile times. One of the reasons why compile times are so long is because many projects use quite a few dependencies from crates.io. Your dependencies have dependencies of their own, and they in turn have dependencies as well, and so on. This results in really big graphs of crates that all have to be compiled by cargo. Sometimes however, a crate actually doesn't use anything of some of its dependencies. Then those dependencies can be removed, resulting in faster builds for that crate. But how do you detect them? Often they sit in Cargo.toml for a long time until someone discovers they are actually unused and removes them (example). This is where cargo-udeps comes in. cargo-udeps is an automated tool to find dependencies that were specified in Cargo.toml but never used in the cra

munificent

#include <time.h> //  Robert Nystrom
#include <stdio.h> // @munificentbob
#include <stdlib.h> //     for Ginny
#define  r return    //    2008-2019
#define  l(a, b, c, d) for (i y=a;y\
<b; y++) for (int x = c; x < d; x++)
typedef int i;const i H=40;const i W
=80;i m[40][80];i g(i x){r rand()%x;
}void cave(i s){i w=g(10)+5;i h=g(6)
+3;i t=g(W-w-2)+1;i u=g(H-h-2)+1;l(u

fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

klmr

# Example makefile with some dummy rules

.PHONY: all
## Make ALL the things; this includes: building the target, testing it, and
## deploying to server.
all: test deploy

.PHONY: build
# No documentation; target will be omitted from help display
build:

smls

Binary Parsing in Perl 6

When parsing things like binary file format headers, you generally need to know three things for each data field:

• how many, and what kind of, bytes to gobble
  (e.g. input stream --> Buf:0x<0b 00>)
• how to unpack those bytes into a number, or other low-level type
  (e.g. Buf:0x<0b 00> --> 11)
• how to transform that number into meaningful data

mhausenblas

package spark.example

import org.apache.spark.SparkContext
import org.apache.spark.SparkContext._
import org.apache.spark.SparkConf

object SparkGrep {
	def main(args: Array[String]) {
		if (args.length < 3) {
			System.err.println("Usage: SparkGrep <host> <input_file> <match_term>")

mbcrawfo

class ColorComparator implements Comparator<Integer> {
  private ColorEnumType color;
  
  public ColorComparator(ColorEnumType color) {
    this.color = color;
  }
  
  @Override
  public int compare(Integer a, Integer b) {
    int mask = 0xff;

Wunkolo

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <math.h>
#include <string>

#include <initializer_list>
#include <thread>
#include <chrono>

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a