chef/chef/lib/chef/knife/exec.rb at master · rcreasey/chef

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#--

# Author:: Daniel DeLeo (<dan@opscode.com)

# License:: Apache License, Version 2.0

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

# http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

require 'chef/knife'

class Chef::Knife::Exec < Chef::Knife

banner "knife exec [SCRIPT] (options)"

option :exec,

:short => "-E CODE",

:long => "--exec CODE",

:description => "a string of Chef code to execute"

deps do

require 'chef/shef/ext'

end

def run

scripts = Array(name_args)

context = Object.new

Shef::Extensions.extend_context_object(context)

if config[:exec]

context.instance_eval(config[:exec], "-E Argument", 0)

elsif !scripts.empty?

scripts.each do |script|

file = File.expand_path(script)

context.instance_eval(IO.read(file), file, 0)

end

else

script = STDIN.read

context.instance_eval(script, "STDIN", 0)

end