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Ruby Gems with persistent data

I want to create a ruby ​​application (not rails). This is a console application that will need to save some data. I use pstore as a database. I want to deploy this application as a gem.

My question is: where do my data live?

Currently, I created the data directory as a sibling in the bin directory in the standard gem layout. Therefore, I expect the gem to store its data “inside itself” after it is deployed. But when I do a local installation of gem for testing, I find that the data is stored locally in the project files, and not somewhere inside the gem directory.

Of course, maybe I just misunderstand what rake install_gem does. In addition, I am vaguely worried that if I need sudo to install the gem, it can really create a data file "inside itself" in the gem directory.

Can someone clarify this a bit?

Thanks. John Schenk

@makevoid - thanks for the answer. Here is my whole main script. In the / bin directory ... (I added it to the main question because I am not familiar with how to format the content in a comment - and the inserted code looked awful.

#!/usr/bin/env ruby

$LOAD_PATH.unshift File.dirname(__FILE__) + '/../lib'

require 'timesheet'

begin
  command_hash = TimesheetParser.parse
  store = YAML::Store.new("data/time_entries.yaml")
  tl = TimeLog.new(store)
  ts = Timesheet.new(tl)
  ts.process(command_hash)
rescue Exception => e
  raise if command_hash[:debug]
  puts e.message
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2 answers

There are two common places to store variable data on Linux.

/home/user/.application

, .

ENV["HOME"] + "/." + $application_name

//Library/

, ( ),/var .

  • /var/log
  • /var/run pid
  • /var/lock
  • /var/www httpservers
  • /var/tmp ,
  • /var/lib

/var

"/var/lib/" + $application_name

, , root.

+11

gem. , . gem, gem .

johannes Linux. Mac . Windows. , , , .

, . :)

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