willglynn

source 'https://rubygems.org'

# ...

# zbar needs an environment variable, so don't require it automatically
gem 'zbar', require: false

willglynn

$ librarian-chef install --verbose | egrep 'Resolving|Checking|Conflict|Backtrack'
[Librarian] Resolving apache2 (>= 0) <https://supermarket.getchef.com/api/v1>
[Librarian]   Checking manifests
[Librarian]     Checking apache2/2.0.0 <https://supermarket.getchef.com/api/v1>
[Librarian]       Resolving apt (>= 0) <https://supermarket.getchef.com/api/v1>
[Librarian]         Checking manifests
[Librarian]           Checking apt/2.6.0 <https://supermarket.getchef.com/api/v1>
[Librarian]             Resolving build-essential (>= 0) <https://supermarket.getchef.com/api/v1>
[Librarian]               Checking manifests
[Librarian]                 Checking build-essential/2.1.2 <https://supermarket.getchef.com/api/v1>

willglynn

$ librarian-chef install --verbose | egrep 'Resolving|Checking|Conflict|Backtrack'
[Librarian] Resolving mysql (= 2.0.2) <https://supermarket.getchef.com/api/v1>
[Librarian]   Checking manifests
[Librarian]     Checking mysql/5.6.1 <https://supermarket.getchef.com/api/v1>
[Librarian]       Conflict between mysql/5.6.1 <https://supermarket.getchef.com/api/v1> and mysql (= 2.0.2) <https://supermarket.getchef.com/api/v1>
[Librarian]       Backtracking from mysql/5.6.1 <https://supermarket.getchef.com/api/v1>
[Librarian]     Checking mysql/5.6.0 <https://supermarket.getchef.com/api/v1>
[Librarian]       Conflict between mysql/5.6.0 <https://supermarket.getchef.com/api/v1> and mysql (= 2.0.2) <https://supermarket.getchef.com/api/v1>
[Librarian]       Backtracking from mysql/5.6.0 <https://supermarket.getchef.com/api/v1>
[Librarian]     Checking mysql/5.5.4 <https://supermarket.getchef.com/api/v1>

willglynn

pegasus# zpool status 
  pool: tank
 state: ONLINE
  scan: scrub in progress since Wed Nov 12 09:58:47 2014
        4.67T scanned out of 19.3T at 304M/s, 13h57m to go
        4K repaired, 24.25% done
config:

	NAME                                            STATE     READ WRITE CKSUM
	tank                                            ONLINE       0     0     0

willglynn

# snmpwalk -v 2c -c public -Ofn 172.16.3.35; snmpwalk -v 2c -c public -d 172.16.3.35
.1.3.6.1.2.1.1.1.0 = STRING: POWERALERT 12
.1.3.6.1.2.1.1.2.0 = OID: .1.3.6.1.4.1.850.1
.1.3.6.1.2.1.1.3.0 = Timeticks: (2331061) 6:28:30.61
.1.3.6.1.2.1.1.4.0 = STRING: www.tripplite.com
.1.3.6.1.2.1.1.5.0 = STRING: trippliteUps
.1.3.6.1.2.1.1.6.0 = STRING: 1111 W. 35th St., Chicago, IL 60609
.1.3.6.1.2.1.1.7.0 = INTEGER: 72
.1.3.6.1.2.1.1.8.0 = Timeticks: (0) 0:00:00.00
.1.3.6.1.2.1.1.9.1.2.1 = OID: .1.3.6.1.6.3.1

willglynn

CREATE OR REPLACE FUNCTION indexes_for_hstore_column(full_table_name varchar, hstore_column varchar) RETURNS SETOF varchar AS $$
DECLARE
  table_oid oid;
  table_name varchar;
  schema_name varchar;
  key varchar;
  index_name varchar;
  index_exists integer;
  unique_keys_query varchar;
  create_index_statement varchar;

willglynn

.gemsig Proposal

RubyGems.org has little in the way of defenses against tampering. Right now, new gems could be uploaded to S3 and distributed to users worldwide without detection, and the only thing preventing this is the security of the AWS credentials presently stored on world-facing web servers. S3 Versioning is a step that could be taken immediately to reduce the severity of compromise, but a larger solution is required.

This document proposes a .gemsig file as a means of verifying that a gem has not been modified during distribution. This file would be distributed alongside the .gem files, allowing clients to verify authenticity.

Format

willglynn

[1] pry(main)> [`date`, ENV['TZ'], Time.zone, Date.today.midnight, Date.yesterday.midnight]
=> ["Wed Oct  3 23:11:03 CDT 2012\n",
 nil,
 (GMT+00:00) UTC,
 Wed, 03 Oct 2012 00:00:00 UTC +00:00,
 Wed, 03 Oct 2012 00:00:00 UTC +00:00]

[2] pry(main)> ENV['TZ'] = 'UTC'
=> "UTC"
[3] pry(main)> [`date`, ENV['TZ'], Time.zone, Date.today.midnight, Date.yesterday.midnight]

willglynn

#include <stdio.h>

int main() {
    struct {
      int scalar;
      int array[5];
    } some_struct;

    some_struct.scalar = 5;

willglynn

class SomeClass; end
module SomeClass::NestedModule; end

puts SomeClass.class
puts SomeClass::NestedModule.class

# prints:
#   Class
#   Module