Very often I have to implement console scripts (because of my laziness, for boring processes optimization). Many of them write some information to the output, show process status or display results of work. Anyway, it’s very wearisome action to read script output, and I want to highlight most important things: errors in red, successfully finished steps in green color, etc. And it is a case when ANSI escape sequences could help. They are supported by the most terminals, including VT100 (btw, Windows NT family console does not support it, but I will back to this issue later).
RSpec provides a framework for writing what can be called executable specifications of program behavior. In this short post I want to explain why I use this framework in place of classic TestUnit library.
Today I found that Sphinx search engine has been updated. Major new features include:
- extended query mode with boolean, field limits, phrases, and proximity support (eg.: @title "hello world"~10 | @body example program);
- extended sorting mode (eg.: @weight DESC @id ASC);
- combined phrase+statistical ranking which takes words frequencies into account (currently in extended mode only);
- official Python API;
- contributed Perl and Ruby APIs.
I have updated Sphinx Client Library along with Sphinx 0.9.7-RC2 Windows build.
Almost all Web-applications needs data search logic and really often this logic should have full-text search capabilities. If you are using MySQL database, you can use its FULLTEXT search, but it’s not efficient when you have a large amout of data. In this case third party search engines used, and one of them (and I think, the most efficient) is Sphinx. In this article I’ll present my port of Sphinx client library for Ruby and show how to use it.
There are couple of cheat sheets about Ruby on Rails and related technologies can be found in the web. I decided to collect all of them (almost all) in one post just to keep them in mind. All of them are in full color PDFs or PNGs.