Skip to content

Instantly share code, notes, and snippets.

View nevans's full-sized avatar

nicholas a. evans nevans

View GitHub Profile
@kddnewton
kddnewton / json.rb
Last active October 6, 2023 09:25
JSON parser with pattern matching
require "json"
struct = { "a" => 1, "b" => 2, "c" => [1, 2, 3], "d" => [{ "e" => 3 }, nil, false, true, [], {}] }
source = JSON.dump(struct)
tokens = []
index = 0
until source.empty?
tokens <<
@nevans
nevans / IMAP-RFCs.md
Last active November 5, 2024 16:49
IMAP Specifications

IMAP specifications

(TODO) All IANA registered IMAP capabilities, response codes, keywords, mailbox attributes, the most relevant SASL mechanisms, and other relevant specifications.

  • ⛔️: obsolete specifications that have been deprecated or replaced
  • ⏭️: extensions that have been completely or partially included in [IMAP4rev2].
  • ✨: extensions that are recommended for [IMAP4rev2] servers and clients. The IETF EXTRA WG decided that requiring them as a part of IMAP4rev2 would push the bar to implement too high for new implementations.
  • 🗑: extensions that have been completely or partially deprecated or removed in [IMAP4rev2].
  • 🍋: extensions that are included in the "Lemonade" profile [RFC5550].
@kddnewton
kddnewton / annoy_scanners_server.rb
Last active August 15, 2024 03:36
Annoy scanners
# I really don't like getting routing error notifications when scanners try to
# find vulnerabilities in our application. As such, this extends our routing
# to actually give a response, but it's likely not what they were looking for.
# If they're not using a headless browser, the `alert` is going to kill their
# productivity. If they are, they just might enjoy the youtube video anyway.
class AnnoyScannersServer
SCANNER_PATHS = %w[
/a2billing/admin/Public/index.php
/a2billing/common/javascript/misc.js
/a2billing/customer/templates/default/css/popup.css
@arsduo
arsduo / check_changed_coverage.rb
Last active June 9, 2023 19:10
SimpleCov Test Coverage for Files Changed in a Branch
output = `cat #{ENV["CIRCLE_ARTIFACTS"] || "."}/coverage/index.html | grep Changed -A 2 | grep "[0-9\.]*%"`
percentage_match = output.match(/([0-9\.]+)%/)
raise "Unable to determine test coverage change" unless percentage_match
RED = "\033[0;31m"
BOLD = "\033[1m"
NO_COLOR = "\033[0m"
percentage = percentage_match[0].to_f
@kyledrake
kyledrake / ferengi-plan.txt
Last active October 3, 2024 15:12
How to throttle the FCC to dial up modem speeds on your website using Nginx
# The blog post that started it all: https://neocities.org/blog/the-fcc-is-now-rate-limited
#
# Current known FCC address ranges:
# https://news.ycombinator.com/item?id=7716915
#
# Confirm/locate FCC IP ranges with this: http://whois.arin.net/rest/net/NET-165-135-0-0-1/pft
#
# In your nginx.conf:
location / {
@mislav
mislav / _readme.md
Last active September 28, 2024 23:03
tmux-vim integration to transparently switch between tmux panes and vim split windows

I use tmux splits (panes). Inside one of these panes there's a Vim process, and it has its own splits (windows).

In Vim I have key bindings C-h/j/k/l set to switch windows in the given direction. (Vim default mappings for windows switching are the same, but prefixed with C-W.) I'd like to use the same keystrokes for switching tmux panes.

An extra goal that I've solved with a dirty hack is to toggle between last active panes with C-\.

Here's how it should work:

@datagrok
datagrok / git-branch-simplify.md
Last active April 16, 2024 17:26
How to simplify the graph produced by git log --graph

Ideas for improvements to git log --graph

I will maybe someday get around to dusting off my C and making these changes myself unless someone else does it first.

Make the graph for --topo-order less wiggly

Imagine a long-running development branch periodically merges from master. The git log --graph --all --topo-order is not as simple as it could be, as of git version 1.7.10.4.

It doesn't seem like a big deal in this example, but when you're trying to follow the history trails in ASCII and you've got several different branches displayed at once, it gets difficult quickly.

@unclebob
unclebob / apology.
Created April 27, 2012 12:19
Apology to Women Programmers.
Today I gave a keynote at ACCU in Oxford. In the midst of it I made two (count them) two statements that I should have known better than to make. I was describing the late '70s, and the way we felt about the C language at the time. My slide said something like: "C was for real men." Emily Bache, whom I know and hold in high regard, spoke up and said "What about women?". And I said something like: "We didn't allow women in those days." It was a dumb crack, and should either not have been said, or should have been followed up with a statement to the effect that that was wrong headed.
The second mistake I made was while describing Cobol. I mentioned Adm. Grace Hopper. I said something like "May she rest in peace." I don't know that any of the words were actually demeaning, but the tone was not as respectful as it should have been to an Admiral in the United State Navy, and one who was so instrumental in our industry; despite what I feel about Cobol.
I am a 59 year old programmer who was brought up
@avdi
avdi / apology101.markdown
Created March 22, 2012 17:36
How to apologize

Chances are your head's spinning right now. That accusation of bias caught you off guard, you got kind of defensive, and now all hell has broken loose. You're feeling attacked on all sides. You're a good person at heart, and having all these people treat you like the antichrist is pretty upsetting.

You need to say something, but you're probably not in the best headspace to write copy right now. So to help you along, here's my 100% guaranteed-or-you-money-back scandal defusement apology template:

def output name=((default=true); "caius")
puts "name: #{name.inspect}"
puts "default: #{default.inspect}"
end
output
# >> name: "caius"
# >> default: true
output "avdi"