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@jpmckinney
jpmckinney / tz_identifiers_to_rails_identifiers.rb
Created January 5, 2011 21:44
Maps tz database time zone identifiers to Rails time zone identifiers
# blog post: http://blog.slashpoundbang.com/post/2613268281/changing-from-tz-database-identifiers-to-rails-friendly
{
"Australia/Adelaide" => "Adelaide",
"Australia/Broken_Hill" => "Adelaide",
"America/Anchorage" => "Alaska",
"America/Juneau" => "Alaska",
"America/Nome" => "Alaska",
"America/Yakutat" => "Alaska",
"Pacific/Gambier" => "Alaska",
"Asia/Almaty" => "Almaty",
@fnichol
fnichol / README.md
Created March 12, 2011 20:52
Download a cacert.pem for RailsInstaller

Why?

There is a long standing issue in Ruby where the net/http library by default does not check the validity of an SSL certificate during a TLS handshake. Rather than deal with the underlying problem (a missing certificate authority, a self-signed certificate, etc.) one tends to see bad hacks everywhere. This can lead to problems down the road.

From what I can see the OpenSSL library that Rails Installer delivers has no certificate authorities defined. So, let's go fetch some from the curl website. And since this is for ruby, why don't we download and install the file with a ruby script?

Installation

The Ruby Way! (Fun)

@thwarted
thwarted / sshpub-to-rsa
Created June 14, 2011 09:12
converts an openssh RSA public key into a format usable by openssl rsautl (if you don't have openssh 5.6 or later with ssh-keygen PEM export format)
#!/usr/bin/env python
# with help and inspiration from
# * ASN1_generate_nconf(3) (specifically the SubjectPublicKeyInfo structure)
# * http://www.sysmic.org/dotclear/index.php?post/2010/03/24/Convert-keys-betweens-GnuPG%2C-OpenSsh-and-OpenSSL
# * http://blog.oddbit.com/2011/05/converting-openssh-public-keys.html
import sys
import base64
import struct
@tonyc
tonyc / gist:1384523
Last active June 3, 2024 15:34
Using strace and lsof

Using strace and lsof to debug blocked processes

You can use strace on a specific pid to figure out what a specific process is doing, e.g.:

strace -fp <pid>

You might see something like:

select(9, [3 5 8], [], [], {0, 999999}) = 0 (Timeout)

@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active April 24, 2025 09:49
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@myronmarston
myronmarston / explanation.md
Last active October 22, 2020 18:16
Explanation for why `its` will be removed from rspec-3

its isn't core to RSpec. One the of the focuses of RSpec is on the documentation aspects of tests. Unfortunately, its often leads to documentation output that is essentially lies. Consider this spec:

User = Struct.new(:name, :email)

describe User do
  subject { User.new("bob") }
  its(:name) { should == "bob" }
end
@4ndrej
4ndrej / SSLPoke.java
Last active March 11, 2025 11:10
Test of java SSL / keystore / cert setup. Check the comment #1 for howto.
import javax.net.ssl.SSLParameters;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import java.io.*;
/** Establish a SSL connection to a host and port, writes a byte and
* prints the response. See
* http://confluence.atlassian.com/display/JIRA/Connecting+to+SSL+services
*/
public class SSLPoke {
@bofrede
bofrede / html_export.rb
Last active February 8, 2017 16:22
Export Word documents as HTML
=begin
This script requires a Ruby intepeter to run:
http://rubyinstaller.org/
This script also requires Microsoft Windows and Microsoft Word to be installed.
A few libraries, used by this script:
HTML Sanitizer:
https://github.com/rgrove/sanitize/
@jdjkelly
jdjkelly / gist:5200375
Last active November 26, 2017 03:07
Rails 3 – Setting Up Guard with Rspec and Spork with Growl Notifications in OSX

Gemfile:

group :development do
  gem 'rspec-rails'
  gem 'guard'
  gem 'guard-rspec'
end

group :test do

gem 'rspec'

@schickling
schickling / Rakefile
Last active December 3, 2024 22:57
Activerecord without Rails
require "active_record"
namespace :db do
db_config = YAML::load(File.open('config/database.yml'))
db_config_admin = db_config.merge({'database' => 'postgres', 'schema_search_path' => 'public'})
desc "Create the database"
task :create do
ActiveRecord::Base.establish_connection(db_config_admin)