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#
# Author:: Adam Edwards (<adamed@chef.io>)
# Copyright:: Copyright 2013-2016, Chef Software Inc.
# 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_relative "windows_script"
class Chef
class Resource
class PowershellScript < Chef::Resource::WindowsScript
provides :powershell_script, os: "windows"
property :flags, String,
description: "A string that is passed to the Windows PowerShell command",
default: lazy { default_flags },
coerce: proc { |input|
if input == default_flags
# Means there was no input provided,
# and should use defaults in this case
input
else
# The last occurance of a flag would override its
# previous one at the time of command execution.
[default_flags, input].join(" ")
end
}
description "Use the powershell_script resource to execute a script using the Windows PowerShell"\
" interpreter, much like how the script and script-based resources—bash, csh, perl, python,"\
" and ruby—are used. The powershell_script is specific to the Microsoft Windows platform"\
" and the Windows PowerShell interpreter.\n\n The powershell_script resource creates and"\
" executes a temporary file (similar to how the script resource behaves), rather than running"\
" the command inline. Commands that are executed with this resource are (by their nature) not"\
" idempotent, as they are typically unique to the environment in which they are run. Use not_if"\
" and only_if to guard this resource for idempotence."
def initialize(name, run_context = nil)
super(name, run_context, :powershell_script, "powershell.exe")
@convert_boolean_return = false
end
def convert_boolean_return(arg = nil)
set_or_return(
:convert_boolean_return,
arg,
kind_of: [ FalseClass, TrueClass ]
)
end
# Allow callers evaluating guards to request default
# attribute values. This is needed to allow
# convert_boolean_return to be true in guard context by default,
# and false by default otherwise. When this mode becomes the
# default for this resource, this method can be removed since
# guard context and recipe resource context will have the
# same behavior.
def self.get_default_attributes(opts)
{ convert_boolean_return: true }
end
# Options that will be passed to Windows PowerShell command
def default_flags
return "" if Chef::Platform.windows_nano_server?
# Execution policy 'Bypass' is preferable since it doesn't require
# user input confirmation for files such as PowerShell modules
# downloaded from the Internet. However, 'Bypass' is not supported
# prior to PowerShell 3.0, so the fallback is 'Unrestricted'
execution_policy = Chef::Platform.supports_powershell_execution_bypass?(run_context.node) ? "Bypass" : "Unrestricted"
[
"-NoLogo",
"-NonInteractive",
"-NoProfile",
"-ExecutionPolicy #{execution_policy}",
# PowerShell will hang if STDIN is redirected
# http://connect.microsoft.com/PowerShell/feedback/details/572313/powershell-exe-can-hang-if-stdin-is-redirected
"-InputFormat None",
].join(" ")
end
end
end
end
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