hgupta

Colours in terminal

It's a common confusion about terminal colours... Actually we have this:

• plain ascii
• ansi escape codes (16 colour codes with bold/italic and background)
• 256 colour palette (216 colours + 16 ansi + 24 gray) (colors are 24bit)
• 24bit true colour ("888" colours (aka 16 milion))

printf "\x1b[${bg};2;${red};${green};${blue}m\n"

hgupta

#coding:utf-8

from gevent import monkey
monkey.patch_all()
import logging
import gevent

logging.basicConfig(level=logging.DEBUG)
LOGGER = logging.getLogger("GeventTaskQueue")
from gevent.queue import Queue, Empty

hgupta

# http://wiki.apache.org/solr/FAQ#How_can_I_delete_all_documents_from_my_index.3F
# http://wiki.apache.org/solr/UpdateXmlMessages#Updating_a_Data_Record_via_curl

curl "http://index.websolr.com/solr/a0b1c2d3/update?commit=true" -H "Content-Type: text/xml" --data-binary '<delete><query>*:*</query></delete>'

I'm amused at the traction this little gist is getting on Google! I would be remiss not to point out that six+ years later I'm still helping thousands of companies on a daily basis with their search index management, by providing managed Solr as a service over at Websolr, and hosted Elasticsearch at Bonsai. Check us out if you'd like an expert helping hand at Solr and Elasticsearch hosting, ops and support!

hgupta

# SO Link - http://stackoverflow.com/questions/1176136/convert-string-to-python-class-object

import sys
import types

def str_to_class(field):
    try:
        identifier = getattr(sys.modules[__name__], field)
    except AttributeError:
        raise NameError("%s doesn't exist." % field)

hgupta

lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom | while read f; do  sudo rm /usr/local/${f}; done
sudo rm -rf /usr/local/{lib/node{,/.npm,_modules},bin,share/man}/{npm*,node*,man1/node*}
sudo rm -rf /var/db/receipts/org.nodejs.*

hgupta

Array.prototype.flatten = function(limit) {
  var level = 0;
  if(limit === undefined) limit = Number.POSITIVE_INFINITY;
  if(arguments.length > 1) level = arguments[1];

  return this.reduce(function(a, b) {
    if((b instanceof Array) && level < limit)
      a = a.concat(b.flatten(limit, level + 1));
    else
      a.push(b);

hgupta

def fizzbuzz(x)
  x%3==0 && x%5==0 ? "fizzbuzz" : x%3==0 ? "fizz" : x%5==0 ? "buzz" : nil
end

def accept?(a, n)
  return n if a.empty?
  case fizzbuzz(n)
  when nil
    accept?(a, n+1)
  when a.first

hgupta

module ActiveRecord
  class Base
    # Establishes a connection to the database that's used by all Active Record objects.
    def self.mysql2_connection(config)
      config[:username] = 'root' if config[:username].nil?

      if Mysql2::Client.const_defined? :FOUND_ROWS
        config[:flags] = config[:flags] ? config[:flags].to_i | Mysql2::Client::FOUND_ROWS : Mysql2::Client::FOUND_ROWS
      end

hgupta

<tr>
<td><%=@key.split(".").drop(1) %></td>
<td><%= @value%></td>
</tr>

hgupta

# Provide varbinary columns in a Migration.
# Probably a better way to do this?
#
# Usage: 
#     => t.varbinary :column, :limit => 20, ....[options]
#

ActiveRecord::ConnectionAdapters::SchemaStatements.module_eval do
  def type_to_sql_with_varbinary(type, limit = nil, precision = nil, scale = nil)
    return type_to_sql_without_varbinary(type, limit, precision, scale) unless :varbinary == type.to_sym