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Contents
module Incline
##
# This class simply locates a temporary working directory for the application.
#
# By default we shoot for shared memory such as /run/shm or /dev/shm. If those
# fail, we look to /tmp.
#
class WorkPath
##
# Gets the temporary working directory location for the application.
#
def self.location
@location ||= get_location
end
##
# Gets a path for a specific temporary file.
#
def self.path_for(filename)
location + '/' + filename
end
##
# Gets the path to the system status file.
#
# This file is used by long running processes to log their progress.
#
def self.system_status_file
@system_status_file ||= path_for('system_status')
end
private
def self.app_name
@app_name ||= Rails.application.class.name.underscore.gsub('/','_')
end
def self.try_path(path)
path += '/incline_' + app_name
Incline::Log::debug "Trying path '#{path}'..."
# must exist or be able to be created.
unless Dir.exist?(path) || Dir.mkdir(path)
Incline::Log::debug 'Could not create path.'
return nil
end
# must be able to write and delete a test file.
test_file = path + '/test.file'
begin
File.delete(test_file) if File.exist?(test_file)
File.write(test_file, 'This is only a test file and can safely be deleted.')
File.delete(test_file)
rescue
Incline::Log::debug 'Could not create test file.'
path = nil
end
path
end
def self.get_location
%w(/run/shm /var/run/shm /dev/shm /tmp).each do |root|
if Dir.exist?(root)
loc = try_path(root)
return loc unless loc.blank?
end
end
nil
end
end
end
Version data entries
47 entries across 47 versions & 1 rubygems