Merge pull request #1112 from dfinke/refactor-rezip

ImportExcel.psd1

@@ -6,7 +6,7 @@
     RootModule         = 'ImportExcel.psm1'
 
     # Version number of this module.
-    ModuleVersion      = '7.4.0'
+    ModuleVersion      = '7.4.1'
 
     # ID used to uniquely identify this module
     GUID               = '60dd4136-feff-401a-ba27-a84458c57ede'

Private/Invoke-ExcelReZipFile.ps1

@@ -0,0 +1,25 @@
+function Invoke-ExcelReZipFile {
+    <#
+    #>
+    param(
+        [Parameter(Mandatory)]
+        [OfficeOpenXml.ExcelPackage]$ExcelPackage
+    )   
+
+    Write-Verbose -Message "Re-Zipping $($ExcelPackage.file) using .NET ZIP library"
+    try {
+        Add-Type -AssemblyName 'System.IO.Compression.Filesystem' -ErrorAction stop
+    }
+    catch {
+        Write-Error "The -ReZip parameter requires .NET Framework 4.5 or later to be installed. Recommend to install Powershell v4+"
+        continue
+    }
+    try {
+        $TempZipPath = Join-Path -Path ([System.IO.Path]::GetTempPath()) -ChildPath ([System.IO.Path]::GetRandomFileName())
+        $null = [io.compression.zipfile]::ExtractToDirectory($ExcelPackage.File, $TempZipPath)
+        Remove-Item $ExcelPackage.File -Force
+        $null = [io.compression.zipfile]::CreateFromDirectory($TempZipPath, $ExcelPackage.File)
+        Remove-Item $TempZipPath -Recurse -Force 
+    }
+    catch { throw "Error resizipping $path : $_" }
+}

Public/Close-ExcelPackage.ps1

@@ -1,33 +1,38 @@
 function Close-ExcelPackage {
     [CmdLetBinding()]
-    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword","")]
+    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword", "")]
     param (
-        [parameter(Mandatory=$true, ValueFromPipeline=$true)]
+        [parameter(Mandatory = $true, ValueFromPipeline = $true)]
         [OfficeOpenXml.ExcelPackage]$ExcelPackage,
-        [switch]$Show,
+        [Switch]$Show,
         [Switch]$NoSave,
         $SaveAs,
         [ValidateNotNullOrEmpty()]
         [String]$Password,
-        [switch]$Calculate
+        [Switch]$Calculate,
+        [Switch]$ReZip
     )
-    if ( $NoSave)      {$ExcelPackage.Dispose()}
+
+    if ( $NoSave) { $ExcelPackage.Dispose() }
     else {
         if ($Calculate) {
-            try   { [OfficeOpenXml.CalculationExtension]::Calculate($ExcelPackage.Workbook) }
-            catch { Write-Warning "One or more errors occured while calculating, save will continue, but there may be errors in the workbook."}
+            try { [OfficeOpenXml.CalculationExtension]::Calculate($ExcelPackage.Workbook) }
+            catch { Write-Warning "One or more errors occured while calculating, save will continue, but there may be errors in the workbook." }
         }
         if ($SaveAs) {
             $SaveAs = $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($SaveAs)
-            if ($Password) {$ExcelPackage.SaveAs( $SaveAs, $Password ) }
-            else           {$ExcelPackage.SaveAs( $SaveAs)}
+            if ($Password) { $ExcelPackage.SaveAs( $SaveAs, $Password ) }
+            else { $ExcelPackage.SaveAs( $SaveAs) }
         }
-        else         {
-            if ($Password) {$ExcelPackage.Save($Password) }
-            else           {$ExcelPackage.Save()          }
+        else {
+            if ($Password) { $ExcelPackage.Save($Password) }
+            else { $ExcelPackage.Save() }
             $SaveAs = $ExcelPackage.File.FullName
         }
+        if ($ReZip) {
+            Invoke-ExcelReZipFile -ExcelPackage $ExcelPackage
+        }
         $ExcelPackage.Dispose()
-        if ($Show)   {Start-Process -FilePath $SaveAs }
+        if ($Show) { Start-Process -FilePath $SaveAs }
     }
 }