smoke

smoke is a Ruby based DSL that allows you to take data from YQL, RSS / Atom (and more, if you think of a useful source). This "data" can then be re-represented, sorted and filtered. You can collect data from a multiude of sources, sort them on a common property and return a plain old ruby object or json (You could add in something to output XML too)

Examples of use

I powered my entire site using smoke, until further documentation exists, this is probably a good place to start.

Media

• Presentation from Melbourne #roro
• Early screencast to get developer / peer feedback

The concept

The concept comes from using Yahoo Pipes to make little mash ups, get a list of tv shows for my torrent client, compile a recipe book or make tools to give me a list of albums that artists in my music library are about to be release.

How or what to contribute

• Test everything you do
• Add a way to output (XML, anyone?)
• Examples of queries you'd like to be able to do (email / github message them to me)

API Examples

YQL

# This will use yahoo search to get an array of search results about Ruby
Smoke.yql(:ruby) do
  select  :all
  from    "search.web"
  where   :query, "ruby"

  discard :title, /tuesday/i
end

Smoke.yql(:python) do
  select  :all
  from    "search.web"
  where   :query, "python"
end

Join sources and use them together

Smoke.join(:ruby, :python)

or even

Smoke.join(:python, :ruby) do
  emit do
    sort :title
    rename :shit_name => :title
  end
end

Define a source allowing for variables to be injected later

Source definition:

Smoke.feed :delicious do
  prepare do
    url "http://feeds.delicious.com/v2/rss/#{username}?count=15"
  end
end

Execution:

Smoke[:delicious].username("bschwarz").output

CI

Integrity is running for smoke

TODO (working on, just mental notes)

Later / maybe

• YQL w/oAuth
• YQL Subqueries?
• Implement basic auth for sources

For wiki pages (docs, later)

• How to use path
• YQL Definitions
• Tranformations
• Insert
• Joining
• Variable injection
• Sort, Reverse
• Keep, Discard
• Truncate
• Manually setting the content type for a url

Copyright

Copyright (c) 2009 Ben Schwarz. See LICENSE for details.