ErnWong

Awesome List of Rust Footguns

This will be a living document where I will ocassionally add new "gotchas" I discover with Rust. Do note that I am still learning Rust. I mean, who isn't?

Drops are not guaranteed

8 May 2021.

Dear diary,

bjackman

This table visualises the space of eBPF opcodes. It was generated by this hack

The *s represent opcodes that are exposed but not actually used, or used internally but not exposed

Note that there are gaps, but no empty columns.

There's also a prettier version here

|  0x00           |  0x01           |  0x02           |  0x03           |  0x04           |  0x05           |  0x06           |  0x07           |

sigmaris

#!/bin/bash -e

if [ "$(uname -s)" != "Darwin" ]
then
	echo "This script is for building a Debian x86_64 image to use on MacOS"
	exit 1
fi

TEMP="$(mktemp -d build.XXXXX)"
cp preseed.cfg $TEMP

kraj

DEBUG: Executing python function extend_recipe_sysroot
NOTE: Direct dependencies are ['virtual:native:/mnt/a/oe/sources/openembedded-core/meta/recipes-extended/pbzip2/pbzip2_1.1.13.bb:do_populate_sysroot', 'virtual:native:/mnt/a/oe/sources/openembedded-core/meta/recipes-extended/pigz/pigz_2.4.bb:do_populate_sysroot', 'virtual:native:/mnt/a/oe/sources/openembedded-core/meta/recipes-devtools/opkg/opkg_0.3.6.bb:do_populate_sysroot', 'virtual:native:/mnt/a/oe/sources/openembedded-core/meta/recipes-core/update-rc.d/update-rc.d_0.8.bb:do_populate_sysroot', '/mnt/a/oe/sources/openembedded-core/meta/recipes-core/glibc/ldconfig-native_2.12.1.bb:do_populate_sysroot', 'virtual:native:/mnt/a/oe/sources/openembedded-core/meta/recipes-devtools/opkg-utils/opkg-utils_0.3.6.bb:do_populate_sysroot', '/mnt/a/oe/sources/openembedded-core/meta/recipes-core/glibc/cross-localedef-native_2.28.bb:do_populate_sysroot', 'virtual:native:/mnt/a/oe/sources/openembedded-core/meta/recipes-devtools/pseudo/pseudo_git.bb:do_populate_sysroot', 

hjertnes

SPC
    SPC: find file
    , switch buffer
    . browse files
    : MX
    ; EX
    < switch buffer
    ` eval
    u universal arg
    x pop up scratch

henrywang

# In this guide, the server is hosted by Linode and with Fedora 27 server as OS.
# Register a freenode nick name by following https://freenode.net/kb/answer/registration
# ZNC setup needs this information
sudo dnf -y update
# Follow docker installation doc https://docs.docker.com/install/linux/docker-ce/fedora/#os-requirements
sudo dnf remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \

pdanford

Launching iTerm2 from macOS Finder

(Based on info from Peter Downs' gitub but with modified behavior to open a new terminal window for each invocation instead of reusing an already open window.)

The following three ways to launch an iTerm2 window from Finder have been tested on iTerm2 version 3+ running on macOS Mojave+.

pdanford - April 2020

---

ybakos

#!/bin/sh

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx

# Set the colours you can use
black='\033[0;30m'
white='\033[0;37m'
red='\033[0;31m'

romankierzkowski

/* false, 0, undefined, null, NaN, "" are false */

> Boolean(false)
  false
> Boolean(0)
  false
> Boolean("")
  false
> Boolean(undefined)
  false

swannodette

(ns async-test.timeout.core
  (:require [cljs.core.async :refer [chan close!]])
  (:require-macros
    [cljs.core.async.macros :as m :refer [go]]))
 
(defn timeout [ms]
  (let [c (chan)]
    (js/setTimeout (fn [] (close! c)) ms)
    c))