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require 'strscan'
require_relative 'outputs'
module Oxidized
class Model
include Oxidized::Config::Vars
class << self
def inherited klass
klass.instance_variable_set '@cmd', Hash.new { |h,k| h[k] = [] }
klass.instance_variable_set '@cfg', Hash.new { |h,k| h[k] = [] }
klass.instance_variable_set '@procs', Hash.new { |h,k| h[k] = [] }
klass.instance_variable_set '@expect', []
klass.instance_variable_set '@comment', nil
klass.instance_variable_set '@prompt', nil
end
def comment _comment='# '
return @comment if @comment
@comment = block_given? ? yield : _comment
end
def prompt _prompt=nil
@prompt or @prompt = _prompt
end
def cfg *methods, &block
[methods].flatten.each do |method|
@cfg[method.to_s] << block
end
end
def cfgs
@cfg
end
def cmd _cmd=nil, &block
if _cmd.class == Symbol
@cmd[_cmd] << block
else
@cmd[:cmd] << [_cmd, block]
end
Oxidized.logger.debug "lib/oxidized/model/model.rb Added #{_cmd} to the commands list"
end
def cmds
@cmd
end
def expect re, &block
@expect << [re, block]
end
def expects
@expect
end
# calls the block at the end of the model, prepending the output of the
# block to the output string
#
# @author Saku Ytti <saku@ytti.fi>
# @since 0.0.39
# @yield expects block which should return [String]
# @return [void]
def pre &block
@procs[:pre] << block
end
# calls the block at the end of the model, adding the output of the block
# to the output string
#
# @author Saku Ytti <saku@ytti.fi>
# @since 0.0.39
# @yield expects block which should return [String]
# @return [void]
def post &block
@procs[:post] << block
end
# @author Saku Ytti <saku@ytti.fi>
# @since 0.0.39
# @return [Hash] hash proc procs :pre+:post to be prepended/postfixed to output
def procs
@procs
end
end
attr_accessor :input, :node
def cmd string, &block
Oxidized.logger.debug "lib/oxidized/model/model.rb Executing #{string}"
out = @input.cmd(string)
return false unless out
self.class.cmds[:all].each do |all_block|
out = instance_exec Oxidized::String.new(out), string, &all_block
end
if vars :remove_secret
self.class.cmds[:secret].each do |all_block|
out = instance_exec Oxidized::String.new(out), string, &all_block
end
end
out = instance_exec Oxidized::String.new(out), &block if block
process_cmd_output out, string
end
def output
@input.output
end
def send data
@input.send data
end
def expect re, &block
self.class.expect re, &block
end
def cfg
self.class.cfgs
end
def prompt
self.class.prompt
end
def expects data
self.class.expects.each do |re, cb|
if data.match re
if cb.arity == 2
data = instance_exec [data, re], &cb
else
data = instance_exec data, &cb
end
end
end
data
end
def get
Oxidized.logger.debug 'lib/oxidized/model/model.rb Collecting commands\' outputs'
outputs = Outputs.new
procs = self.class.procs
self.class.cmds[:cmd].each do |command, block|
out = cmd command, &block
return false unless out
outputs << out
end
procs[:pre].each do |pre_proc|
outputs.unshift process_cmd_output(instance_eval(&pre_proc), '')
end
procs[:post].each do |post_proc|
outputs << process_cmd_output(instance_eval(&post_proc), '')
end
outputs
end
def comment _comment
data = ''
_comment.each_line do |line|
data << self.class.comment << line
end
data
end
private
def process_cmd_output output, name
output = Oxidized::String.new output if ::String === output
output = Oxidized::String.new '' unless Oxidized::String === output
output.set_cmd(name)
output
end
end
end
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