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community.general/lib/ansible/modules/windows/win_copy.ps1
Dag Wieers ce2284a793 win_copy: Fix for idempotency (#20281)
* include source file in error message

* win_copy: Fix for idempotency

This patch fixes an idempotency issue with win_copy. Without this patch
files would always be considered changed (unless the copy operation failed).

It also fixes the resulting output cfr. what was deocumented.
2017-01-27 16:17:35 +00:00

107 lines
3.1 KiB
PowerShell

#!powershell
# This file is part of Ansible
#
# 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
$params = Parse-Args $args
$src = Get-Attr $params "src" $FALSE -type "path"
If ($src -eq $FALSE)
{
Fail-Json (New-Object psobject) "missing required argument: src"
}
$dest = Get-Attr $params "dest" $FALSE -type "path"
If ($dest -eq $FALSE)
{
Fail-Json (New-Object psobject) "missing required argument: dest"
}
$original_basename = Get-Attr $params "original_basename" $FALSE
If ($original_basename -eq $FALSE)
{
Fail-Json (New-Object psobject) "missing required argument: original_basename "
}
$result = New-Object psobject @{
changed = $FALSE
original_basename = $original_basename
}
# original_basename gets set if src and dest are dirs
# but includes subdir if the source folder contains sub folders
# e.g. you could get subdir/foo.txt
# detect if doing recursive folder copy and create any non-existent destination sub folder
$parent = Split-Path -Path $original_basename -Parent
if ($parent.length -gt 0)
{
$dest_folder = Join-Path $dest $parent
New-Item -Force $dest_folder -Type directory
}
# if $dest is a dir, append $original_basename so the file gets copied with its intended name.
if (Test-Path $dest -PathType Container)
{
$dest = Join-Path $dest $original_basename
}
$orig_checksum = Get-FileChecksum ($dest)
$src_checksum = Get-FileChecksum ($src)
If ($src_checksum.Equals($orig_checksum))
{
# if both are "3" then both are folders, ok to copy
If ($src_checksum.Equals("3"))
{
# New-Item -Force creates subdirs for recursive copies
New-Item -Force $dest -Type file
Copy-Item -Path $src -Destination $dest -Force
$result.operation = "folder_copy"
}
}
ElseIf (-Not $src_checksum.Equals($orig_checksum))
{
If ($src_checksum.Equals("3"))
{
Fail-Json (New-Object psobject) "If src is a folder, dest must also be a folder"
}
# The checksums don't match, there's something to do
Copy-Item -Path $src -Destination $dest -Force
$result.operation = "file_copy"
}
# verify before we return that the file has changed
$dest_checksum = Get-FileChecksum ($dest)
If ($src_checksum.Equals($dest_checksum))
{
If (-Not $orig_checksum.Equals($dest_checksum)) {
$result.changed = $TRUE
}
}
Else
{
Fail-Json (New-Object psobject) "src checksum $src_checksum did not match dest_checksum $dest_checksum Failed to place file $original_basename in $dest"
}
$info = Get-Item $dest
$result.size = $info.Length
$result.src = $src
$result.dest = $dest
Exit-Json $result