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#!powershell
# This file is part of Ansible
#
# Copyright 2015, Jon Hawkesworth (@jhawkesworth) <figs@unity.demon.co.uk>
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# WANT_JSON
# POWERSHELL_COMMON
Function Convert-RegistryPath {
Param (
[parameter(Mandatory=$True)]
[ValidateNotNullOrEmpty()]$Path
)
$output = $Path -replace "HKLM:", "HKLM"
$output = $output -replace "HKCU:", "HKCU"
Return $output
}
$params = Parse-Args $args
$result = New-Object PSObject
Set-Attr $result "changed" $False
$path = Get-Attr -obj $params -name path -failifempty $True -resultobj $result
$compare_to = Get-Attr -obj $params -name compare_to -failifempty $False -resultobj $result
# check it looks like a reg key, warn if key not present - will happen first time
# only accepting PS-Drive style key names (starting with HKLM etc, not HKEY_LOCAL_MACHINE etc)
$do_comparison = $False
If ($compare_to) {
$compare_to_key = $params.compare_to.ToString()
If (Test-Path $compare_to_key -pathType container ) {
$do_comparison = $True
} Else {
Set-Attr $result "compare_to_key_found" $False
}
}
If ( $do_comparison -eq $True ) {
$guid = [guid]::NewGuid()
$exported_path = $env:TEMP + "\" + $guid.ToString() + 'ansible_win_regmerge.reg'
$expanded_compare_key = Convert-RegistryPath ($compare_to_key)
# export from the reg key location to a file
$reg_args = @("EXPORT", "$expanded_compare_key", $exported_path)
& reg.exe $reg_args
# compare the two files
$comparison_result = Compare-Object -ReferenceObject $(Get-Content $path) -DifferenceObject $(Get-Content $exported_path)
If (Get-Member -InputObject $comparison_result -Name "count" -MemberType Properties )
{
# Something is different, actually do reg merge
$reg_import_args = @("IMPORT", "$path")
$ret = & reg.exe $reg_import_args 2>&1
If ($LASTEXITCODE -eq 0) {
Set-Attr $result "changed" $True
Set-Attr $result "difference_count" $comparison_result.count
} Else {
Set-Attr $result "rc" $LASTEXITCODE
Fail-Json $result "$ret"
}
} Else {
Set-Attr $result "difference_count" 0
}
Remove-Item $exported_path
Set-Attr $result "compared" $True
} Else {
# not comparing, merge and report changed
$reg_import_args = @("IMPORT", "$path")
$ret = & reg.exe $reg_import_args 2>&1
If ( $LASTEXITCODE -eq 0 ) {
Set-Attr $result "changed" $True
Set-Attr $result "compared" $False
} Else {
Set-Attr $result "rc" $LASTEXITCODE
Fail-Json $result "$ret"
}
}
Exit-Json $result
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