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98934939af
* win_copy: Add force parameter and check-mode support The rationale behind this is that if you're working with +3GB files, creating the checksum takes a lot of time, which we can avoid by simply testing if the file exists. I also took the liberty to put the various parameters together. It probably takes a (neglible) performance hit but makes the code a bit easier to inspect/work with, as its closer to all other windows modules. On a normal run, the action plugin does a local checksum of the source and a remote checksum of the destination. And afterwards, the module will do another remote checksum of the copied source, a remote checksum of the original destination, and another remote checksum of the copied destination. On a very huge file (think 4GB) that means 5x reading the complete file (if you have a large cache you may get away with it, otherwise you're doomed !). This patch will ensure with `force: no` that not checksums are being performed. * Moving presence check before remote checksum * Adapted to wishes * Even more performance improvements
100 lines
3.3 KiB
PowerShell
100 lines
3.3 KiB
PowerShell
#!powershell
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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# WANT_JSON
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# POWERSHELL_COMMON
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$params = Parse-Args $args -supports_check_mode $true
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$check_mode = Get-AnsibleParam -obj $params -name "_ansible_check_mode" -type "bool" -default $false
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$src = Get-AnsibleParam -obj $params -name "src" -type "path" -failifempty $true
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$dest = Get-AnsibleParam -obj $params -name "dest" -type "path" -failifempty $true
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$force = Get-AnsibleParam -obj $params -name "force" -type "bool" -default $true
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$original_basename = Get-AnsibleParam -obj $params -name "original_basename" -type "str" -failifempty $true
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$result = @{
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changed = $FALSE
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original_basename = $original_basename
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src = $src
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dest = $dest
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}
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# original_basename gets set if src and dest are dirs
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# but includes subdir if the source folder contains sub folders
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# e.g. you could get subdir/foo.txt
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if (($force -eq $false) -and (Test-Path -Path $dest)) {
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$result.msg = "file already exists"
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Exit-Json $result
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}
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# detect if doing recursive folder copy and create any non-existent destination sub folder
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$parent = Split-Path -Path $original_basename -Parent
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if ($parent.length -gt 0)
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{
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$dest_folder = Join-Path $dest $parent
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New-Item -Path $dest_folder -Type Directory -Force -WhatIf:$check_mode
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}
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# if $dest is a dir, append $original_basename so the file gets copied with its intended name.
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if (Test-Path -Path $dest -PathType Container)
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{
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$dest = Join-Path -Path $dest -ChildPath $original_basename
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}
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$orig_checksum = Get-FileChecksum ($dest)
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$src_checksum = Get-FileChecksum ($src)
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If ($src_checksum.Equals($orig_checksum))
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{
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# if both are "3" then both are folders, ok to copy
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If ($src_checksum.Equals("3"))
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{
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# New-Item -Force creates subdirs for recursive copies
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New-Item -Path $dest -Type File -Force -WhatIf:$check_mode
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Copy-Item -Path $src -Destination $dest -Force -WhatIf:$check_mode
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$result.changed = $true
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$result.operation = "folder_copy"
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}
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}
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ElseIf (-Not $src_checksum.Equals($orig_checksum))
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{
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If ($src_checksum.Equals("3"))
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{
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Fail-Json $result "If src is a folder, dest must also be a folder"
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}
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# The checksums don't match, there's something to do
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Copy-Item -Path $src -Destination $dest -Force -WhatIf:$check_mode
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$result.changed = $true
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$result.operation = "file_copy"
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}
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# Verify before we return that the file has changed
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$dest_checksum = Get-FileChecksum($dest)
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If (-Not $src_checksum.Equals($dest_checksum) -And -Not $check_mode)
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{
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Fail-Json $result "src checksum $src_checksum did not match dest_checksum $dest_checksum, failed to place file $original_basename in $dest"
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}
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$info = Get-Item $dest
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$result.size = $info.Length
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$result.src = $src
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$result.dest = $dest
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Exit-Json $result
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