Converting Unix grep/sed/awk into Ruby - ruby-on-rails

Question

Within our file structure we have snippets with tags. From my project directory, I want to return the snippet name based on the tag declared on the preceding line, for all files ending in .feature within the project.
For example, the directory contains a login.feature file with the following text:
#integration #unit #smoke
Scenario: Login to Product
#integration #unit
Scenario: Buy Stuff
The directory also contains a logout.feature file with the following text:
#test #wip #smoke
Scenario: Logout of Product
I want to run a single command that returns the following array:
["Login to Product", "Logout of Product"]
As you can see, I'm essentially doing the following:
grep -inr -A 1 '#smoke' ./my/directory | grep Scenario | sed -n -e 's/^.*Scenario: //p' | awk '!seen[$0]++'
...with the exception of converting the resulting lines into an array.
Is there an elegant way to do this in Ruby? Or can I somehow combine the Unix magic with Ruby sugar? Or should I stick to sed/awk/grep?

Answer 1

Here's what I came up with
results = []
Dir.glob("#{folder}/**/*.feature").each do |file|
i = 0; line = nil
File.foreach(file).map{ |l| line = i+1 if l[/#smoke/]; i+=1 }
results << IO.readlines(file)[line].gsub(/Scenario:\s|\n/,'') unless line.nil?
end
p results
The Results:
["Login to Product", "Logout of Product"]
You can easily shift this into a method.
Edit: Updated this after re-examining your full command line. Looks like you only want the Scenario that comes AFTER a #smoke line and no other Scenarios should be included in the output.