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Versions: 10
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Stored size: 1.79 KB
Contents
require 'pp'
module Omnibus
module Overrides
DEFAULT_OVERRIDE_FILE_NAME = "omnibus.overrides"
# Parses a file of override information into a Hash.
#
# Each line of the file must be of the form
#
#
# <package_name> <version>
#
# where the two pieces of data are separated by whitespace.
#
# @param file [String] the path to an overrides file
# @return [Hash, nil]
def self.parse_file(file)
if file
File.readlines(file).inject({}) do |acc, line|
info = line.split
unless info.count == 2
raise ArgumentError, "Invalid overrides line: '#{line.chomp}'"
end
package, version = info
if acc[package]
raise ArgumentError, "Multiple overrides present for '#{package}' in overrides file #{file}!"
end
acc[package] = version
acc
end
else
nil
end
end
# Return the full path to an overrides file, or +nil+ if no such
# file exists.
def self.resolve_override_file
file = ENV['OMNIBUS_OVERRIDE_FILE'] || DEFAULT_OVERRIDE_FILE_NAME
path = File.expand_path(file)
File.exist?(path) ? path : nil
end
# Return a hash of override information. If no such information
# can be found, the hash will be empty
#
# @return [Hash]
def self.overrides
file = resolve_override_file
overrides = parse_file(file)
if overrides
puts "********************************************************************************"
puts "Using Overrides from #{Omnibus::Overrides.resolve_override_file}"
pp overrides
puts "********************************************************************************"
end
overrides || {}
end
end
end
Version data entries
10 entries across 10 versions & 2 rubygems