Creating Filesystems with Ruby and FUSE
The FUSE project allows you to create filesystems in userspace - which means you can create a filesystem without having to get your hands dirty and modify your kernel source. This is insanely cool, and can be used for many purposes. Here we're going to look at using the Ruby bindings to create a simple filesystem.
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Freeze (vendor, unpack) a single Ruby gem with and without Bundler
When you need to patch an existing gem, one way is to "vendor" the gem by copying it into the vendor/gems directory of your Rails project. You can then make any changes you require and Rails will use the vendored version of the gem after a serve...
Ruby: Using the pry debugger in projects with older Ruby versions
In case you want to use pry with an older version of Ruby, you can try the following configurations.
Ruby 1.8.7
Your pry version must not be greater than 0.9.10.
gem 'pry', '=0.9.10'
gem 'ruby-debug',...
Missing certificates for rubygems and bundler in Ruby 1.8.7
Using Ruby 1.8.7 you will not be able to use the maximum versions Rubygems 1.8.30 and Bundler 1.17.3 with https://rubygems.org/ anymore. This is a result of a server certificate on December 5th, 2020. The resulting errors will...
RubyMine: Find and Replace with Regex (Capture Groups and Backreferences)
tl;dr
In RubyMine you can use find and replace with capture groups
(.*?)and backreferences$1(if you have several groups:$[Capture-Group ID]).
Named captures(?<text>.*)are also supported.
Examples
Replace d...
"cannot load such file -- nokogiri/nokogiri" (or any other Gem with native extensions on rvm and Ruby >= 2)
After running bundler / gem install I could not load nokogiri lately. It died with cannot load such file -- nokogiri/nokogiri.
This is not a problem of the gem but is due to a broken native extensions installation routine.
When installing nokog...
How to open files from better_errors with RubyMine on Linux
I recently noticed that better_errors allows you to to open files from within your favorite editor. However it was not so easy to get rubymine:// links to work ...
Fix [RubyODBC]Cannot allocate SQLHENV when connecting to MSSQL 2005 with Ruby 1.8.7. on Ubuntu 10.10
I followed this nice guide Connecting to MSSQL with Ruby on Ubuntu - lambie.org until I ran in the following errors:
irb(main):001:0> require "dbi"; ...
Objective-C for Rubyists | PeepCode Screencasts for Web Developers and Alpha Geeks
If you know Ruby and you want to write applications for Mac OS X or the iPhone, you’re in a great place to start! This concise and content-packed 80-minute screencast will teach you what you need to know to start programming in Objective-C.
Fix Capistrano with RubyGems 1.6
After updating your RubyGems, you will probably not be able to run Capistrano any more, but receive an error similar to this:
can't activate net-ssh (= 2.0.22) for [], already activated net-ssh-2.1.0 for [] (Gem::LoadError)
If you have B...
Ruby: Fixing strings with invalid encoding and converting to UTF-8
When dealing with external data sources, you may have to deal with improperly encoded strings.
While you should prefer deciding on a single encoding with the data-providing party, you can not always force that on external sources.
It gets worse wh...