hemju

# Taken from http://benoithamelin.tumblr.com/ruby1line/ All credits go to Benoit Hamelin
# Ruby one-liners
# This is a translation of Eric Pement’s collection of Awk one-liners as Ruby one-liners. These so-called one-liners are small programs that hold on a single (sometimes longish) line of code, so it may be run from the command line, typically for text processing purposes. So, all problems solved by Awk one-liners on the page linked above are solved here in Ruby, sorted along the same categories as Pement’s work. In some cases, multiple solutions are proposed, as they outline nice features or idiosyncrasies of the Ruby language and conventions.

# Note that this is not the first collection of Ruby one-liners: googling “Ruby one-liner” yields multiple hits. However, I have put up this collection by myself, without looking at other solutions, for the sake of practice. I have posted about what generalities I have learned throughout this exercise here.

# File spacing
# Double-space a file.
ruby -ne 'print; pu

hemju

1 - Download the RDS certificates (root plus region-specific intermediate ones) bundle:

wget -O config/rds-combined-ca-bundle.pem https://s3.amazonaws.com/rds-downloads/rds-combined-ca-bundle.pem

2 - Add config/rds-combined-ca-bundle.pem to the repository and redeploy to Heroku.

3 - Update the DATABASE_URL env var:

hemju

def import_file_data(file_path, content, import_type, strategy_name, additional_attributes = {}, options = {})
  # probably file_path is a String and the result file_name as well
  file_name = File.basename(file_path)

  # no idea what tempfile is, a string?
  tempfile = write_to_temp_file(content, file_name)
  uploaded_file = OpenStruct.new(:original_filename => file_name, :tempfile => tempfile)

  # Is this now an instance of ResourceImport or a result of a resource import?
  resource_import = ResourceImport.import!(user, project, uploaded_file, file_path, import_type, strategy_name, additional_attributes)

hemju

SELECT
    t.tablename,
    indexname,
    c.reltuples AS num_rows,
    pg_size_pretty(pg_relation_size(quote_ident(t.tablename)::text)) AS table_size,
    pg_size_pretty(pg_relation_size(quote_ident(indexrelname)::text)) AS index_size,
    CASE WHEN indisunique THEN 'Y'
       ELSE 'N'
    END AS UNIQUE,
    idx_scan AS number_of_scans,

hemju

#!/usr/bin/env ruby
require 'bundler'
require 'benchmark'

REGEXPS = [
  /^no such file to load -- (.+)$/i,
  /^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i,
  /^Missing API definition file in (.+)$/i,
  /^cannot load such file -- (.+)$/i,
]

hemju

# Character count
select sum(length(YOUR_COLUMN)) from YOUR_TABLE;

# Word count
select sum(array_length(regexp_split_to_array(YOUR_COLUMN, '\s'),1)) from YOUR_TABLE;

hemju

+----------------------+-------+-------+---------+---------+-----+-------+
| Name                 | Lines |   LOC | Classes | Methods | M/C | LOC/M |
+----------------------+-------+-------+---------+---------+-----+-------+
| Controllers          |  1729 |  1320 |      41 |     166 |   4 |     5 |
| Helpers              |   604 |   442 |       1 |      72 |  72 |     4 |
| Models               |  2133 |  1254 |      33 |     174 |   5 |     5 |
| Libraries            |  4272 |  3101 |     100 |     373 |   3 |     6 |
| Model specs          |  1988 |  1232 |       0 |      10 |   0 |   121 |
| View specs           |     0 |     0 |       0 |       0 |   0 |     0 |
| Controller specs     |  2656 |  2021 |       0 |      22 |   0 |    89 |

hemju

1: <%= t 'html.escaped' %>  <!-- INCORRECT RESULT: &lt;h2&gt;lingohub&lt;/h2&gt;&lt;p&gt;can't wait to see it&lt;/p2&gt; -->
2: <%= raw t('html.raw') %> <!-- CORRECT RESULT: <h2>lingohub</h2><p>can't wait to see it</p> -->
3: <%= t('html.html_safe').html_safe %> <!-- CORRECT RESULT: <h2>lingohub</h2><p>can't wait to see it</p> -->
4: <%= t 'html.ending_html' %> <!-- CORRECT RESULT: <h2>lingohub</h2><p>can't wait to see it</p> -->

hemju

en:
  html:
    escaped: "<h2>lingohub</h2><p>can't wait to see it</p>"
    raw: "<h2>lingohub</h2><p>can't wait to see it</p>"
    html_safe: "<h2>lingohub</h2><p>can't wait to see it</p>"
    ending_html: "<h2>lingohub</h2><p>can't wait to see it</p>"

hemju

#!/usr/bin/ruby

# Instructions

# - Install optipng + libjpeg (http://mxcl.github.com/homebrew/)
# - Put this file in a directory of images
# - Open in TextMate + run it (cmd+r)

# Config