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localhostdotdev / gittree.md
Created February 25, 2019 13:13
Like `tree` but takes into account the `.gitignore` file

Made a working one with only ruby and git as a dependency:

One liner to type in irb:

def format(file); split = file.split('/'); return file unless split.size > 1; "│  " * (split.size - 2) + "└── " + split.last; end; def list(dir, start: true); puts dir if start; `git ls-tree master "#{dir}" --name-only`.split("\n").sort.each { |line| split = line.split('/'); puts format(line); list(line + '/', start: false) if File.directory?(line)  }; end; list('.')

And as a more proper script:

@localhostdotdev
localhostdotdev / 20.json
Last active July 22, 2019 20:48
Twitter datacenters by id, located by tweets around with the corresponding ids, best viewed on Github Desktop version (not on mobile's github). Each file name is a datacenter id, the points on the map are the different users who used that datacenter
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@localhostdotdev
localhostdotdev / test.md
Last active May 15, 2019 10:21

ABAP

{% def random n:1 %}
  {% if n|equal 1|or (n|is_a "float") %}
    {{|rand|times n}}
  {% else %}
    {{|rand|times n|round}}
  {% end %}
{% end %}
@localhostdotdev
localhostdotdev / template.pegjs
Created May 12, 2019 16:05
{ function j(string) { return string.join('') } }
template =
(
interpolation /
tag /
$(!interpolation !tag .)
)+
ws = (" " / "\n")*
@localhostdotdev
localhostdotdev / liquid.peg.erl
Created May 12, 2019 13:10
liquid simplified peg from https://github.com/edgurgel/solid/blob/master/src/solid_parser.peg (erlang, works with https://github.com/seancribbs/neotoma)
text <- string:blob (object:object text:text
/ tag:tag text:text
% / open_tag:open_tag text:text
/ open_object:open_object text:text)?
blob <- (!open_object !open_tag .)*
object <- open_object:open_object space (argument:argument filters:filters / argument:argument)? space close_object:close_object
tag <- cond_if_tag / cond_unless_tag / cond_case_tag / assign_tag / comment_tag
@localhostdotdev
localhostdotdev / post fetch rails json with csrf token.coffee
Last active May 12, 2019 00:11
post fetch rails json with csrf token
post = (url, body) ->
token = document.querySelector('meta[name="csrf-token"]').attributes.content.value
fetch("#{url}.json",
method: "POST"
mode: "cors"
cache: "no-cache"
credentials: "same-origin"
headers:
"Content-Type": "application/json"
@localhostdotdev
localhostdotdev / hex-to-cterm.rb
Created May 11, 2019 18:55
hex color to cterm color, mainly for vim to translate hex color to cterm colors in colorscheme
#!/usr/bin/env ruby
if ARGV.size != 1 || ARGV[0] !~ /#[0-9a-fA-F]{3,6}/
abort "USAGE: hex-to-cterm HEX"
end
def hex_to_rgb(hex)
rgb = hex.gsub('#', '').chars
if rgb.size == 3
@localhostdotdev
localhostdotdev / chromium-components (issues categories, labels).txt
Created May 7, 2019 22:59
Blink
Blink>Bluetooth
Blink>CSS
Blink>Canvas
Blink>DOM
Blink>Network>FetchAPI
Blink>Paint
Blink>PerformanceAPIs
Blink>Scroll
Blink>Storage>FileSystem
@localhostdotdev
localhostdotdev / graph + ruby code.md
Created May 7, 2019 00:03
Ruby HATBM - Negative Filtering behaving strange, graph https://stackoverflow.com/a/56006045/10993539

graphiz nodes

puts Contact.all.map { |c| "C#{c.id} [style=filled,color=greenyellow]"  } +
  Book.all.map { |b| "B#{b.id} [style=filled,color=lightcyan]" } +
  BookContact.all.map { |bc| "C#{bc.contact_id} -> B#{bc.book_id}" }
digraph G {
@localhostdotdev
localhostdotdev / dream game.md
Last active May 3, 2019 21:29
  • there is a fixed width/height rectangle board
  • players are circles
  • every player start at size 10 let's say
  • when somebody goes off the board (player B) the last player (A) who touched player B gets half of its "weight" added
    • perimeter is pi * r**2
    • so the new perimeter is (pi * rA**2) + (pi * rB**2)/2
    • new radius is pi * r**2 = (pi * rA**2) + (pi * rB**2)/2
    • r = sqrt(((pi * rA**2) + (pi * rB**2)/2)/2)
  • acceleration is proportional to weight (so the larger the slower)
  • when touching another player forces are distributed by weight (e.g. small player can't push large player much)