win_file: Add check-mode support (#20671)

Also a small cleanup

lib/ansible/modules/windows/win_file.ps1

@@ -19,97 +19,67 @@
 
 $ErrorActionPreference = "Stop"
 
-$params = Parse-Args $args
+$params = Parse-Args $args -supports_check_mode $true
 
-# path
-$path = Get-Attr $params "path" $FALSE
-If ($path -eq $FALSE)
-{
-    $path = Get-Attr $params "dest" $FALSE
-    If ($path -eq $FALSE)
-    {
-        $path = Get-Attr $params "name" $FALSE
-        If ($path -eq $FALSE)
-        {
-            Fail-Json (New-Object psobject) "missing required argument: path"
+$check_mode = Get-AnsibleParam -obj $params -name "_ansible_check_mode" -default $false
+
+$path = Get-AnsibleParam -obj $params -name "path" -type "path" -default $false -failifempty $true -aliases "dest","name"
+$state = Get-AnsibleParam -obj $params -name "state" -type "str" -validateset "absent","directory","file","touch"
+
+$result = @{
+    changed = $false
+}
+
+if ($state -eq "touch") {
+    if (-not $check_mode) {
+        if (Test-Path $path) {
+            (Get-ChildItem $path).LastWriteTime = Get-Date
+        } else {
+            echo $null > $path
         }
     }
+    $result.changed = $true
 }
 
-# JH Following advice from Chris Church, only allow the following states
-# in the windows version for now:
-# state - file, directory, touch, absent
-# (originally was: state - file, link, directory, hard, touch, absent)
-
-$state = Get-Attr $params "state" "unspecified"
-# if state is not supplied, test the $path to see if it looks like 
-# a file or a folder and set state to file or folder
-
-# result
-$result = New-Object psobject @{
-    changed = $FALSE
-}
-
-If ( $state -eq "touch" )
-{
-    If(Test-Path $path)
-    {
-        (Get-ChildItem $path).LastWriteTime = Get-Date
-    }
-    Else
-    {
-        echo $null > $path
-    }
-    $result.changed = $TRUE
-}
-
-If (Test-Path $path)
-{
+if (Test-Path $path) {
     $fileinfo = Get-Item $path
-    If ( $state -eq "absent" )
-    {   
-        Remove-Item -Recurse -Force $fileinfo
-        $result.changed = $TRUE
-    }
-    Else
-    {
-        If ( $state -eq "directory" -and -not $fileinfo.PsIsContainer )
-        {
-            Fail-Json (New-Object psobject) "path is not a directory"
+    if ($state -eq "absent") {
+        if (-not $check_mode) {
+            Remove-Item -Recurse -Force $fileinfo
+        }
+        $result.changed = $true
+    } else {
+        if ($state -eq "directory" -and -not $fileinfo.PsIsContainer) {
+            Fail-Json $result "path $path is not a directory"
         }
 
-        If ( $state -eq "file" -and $fileinfo.PsIsContainer )
-        {
-            Fail-Json (New-Object psobject) "path is not a file"
+        if ($state -eq "file" -and $fileinfo.PsIsContainer) {
+            Fail-Json $result "path $path is not a file"
         }
     }
-}
-Else
-# doesn't yet exist
-{
-    If ( $state -eq "unspecified" )
-    {
+
+} else {
+
+    # If state is not supplied, test the $path to see if it looks like
+    # a file or a folder and set state to file or folder
+    if ($state -eq $null) {
         $basename = Split-Path -Path $path -Leaf
-        If ($basename.length -gt 0) 
-        {
+        if ($basename.length -gt 0) {
            $state = "file"
-        }
-        Else
-        {
+        } else {
            $state = "directory"
         }
     }
 
-    If ( $state -eq "directory" )
-    {
-        New-Item -ItemType directory -Path $path | Out-Null
-        $result.changed = $TRUE
+    if ($state -eq "directory") {
+        if (-not $check_mode) {
+            New-Item -ItemType directory -Path $path | Out-Null
+        }
+        $result.changed = $true
+    } elseif ($state -eq "file") {
+        Fail-Json $result "path $path will not be created"
     }
 
-    If ( $state -eq "file" )
-    {
-        Fail-Json (New-Object psobject) "path will not be created"
-    }
 }
 
 Exit-Json $result

lib/ansible/modules/windows/win_file.py

@@ -31,7 +31,7 @@ short_description: Creates, touches or removes files or directories.
 description:
      - Creates (empty) files, updates file modification stamps of existing files,
        and can create or remove directories.
-       Unlike M(file), does not modify ownership, permissions or manipulate links.
+     - Unlike M(file), does not modify ownership, permissions or manipulate links.
 notes:
     - See also M(win_copy), M(win_template), M(copy), M(template), M(assemble)
 requirements: [ ]
@@ -41,7 +41,6 @@ options:
     description:
       - 'path to the file being managed.  Aliases: I(dest), I(name)'
     required: true
-    default: []
     aliases: ['dest', 'name']
   state:
     description:
@@ -53,34 +52,32 @@ options:
         If C(touch), an empty file will be created if the C(path) does not
         exist, while an existing file or directory will receive updated file access and
         modification times (similar to the way C(touch) works from the command line).
-    required: false
-    default: file
     choices: [ file, directory, touch, absent ]
 '''
 
 EXAMPLES = r'''
 - name: Create a file
   win_file:
-    path: C:\temp\foo.conf
+    path: C:\Temp\foo.conf
     state: file
 
 - name: Touch a file (creates if not present, updates modification time if present)
   win_file:
-    path: C:\temp\foo.conf
+    path: C:\Temp\foo.conf
     state: touch
 
 - name: Remove a file, if present
   win_file:
-    path: C:\temp\foo.conf
+    path: C:\Temp\foo.conf
     state: absent
 
 - name: Create directory structure
   win_file:
-    path: C:\temp\folder\subfolder
+    path: C:\Temp\folder\subfolder
     state: directory
 
 - name: Remove directory structure
   win_file:
-    path: C:\temp
+    path: C:\Temp
     state: absent
 '''