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For Symlinks to directories, fix Windows error on removal, and asking confirmation on Linux

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This commit is contained in:
George Fleming committed 2016-04-28 08:44:20 -07:00
1 parent 962aeed560
commit a8f4fb8a07
1 file changed
+24 -7
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src/System.Management.Automation/namespaces/FileSystemProvider.cs
+24 -7
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@@ -2848,13 +2848,16 @@ namespace Microsoft.PowerShell.Commands
bool continueRemoval = true;
// We only want to confirm the removal if this is the root of the
// tree being removed or the recurse flag is specified.
if (rootOfRemoval || recurse)
if (Platform.IsWindows || (directory.Attributes & FileAttributes.ReparsePoint) == 0)
{
// Confirm the user wants to remove the directory
string action = FileSystemProviderStrings.RemoveItemActionDirectory;
continueRemoval = ShouldProcess(directory.FullName, action);
// We only want to confirm the removal if this is the root of the
// tree being removed or the recurse flag is specified.
if (rootOfRemoval || recurse)
{
// Confirm the user wants to remove the directory
string action = FileSystemProviderStrings.RemoveItemActionDirectory;
continueRemoval = ShouldProcess(directory.FullName, action);
}
}
//if this is a reparse point and force is not specified then warn user but dont remove the directory.
@@ -8452,10 +8455,24 @@ namespace Microsoft.PowerShell.Commands
IntPtr dangerousHandle = handle.DangerousGetHandle();
int bytesReturned;
// Do a FSCTL_GET_REPARSE_POINT first because the ReparseTag could be
// IO_REPARSE_TAG_MOUNT_POINT or IO_REPARSE_TAG_SYMLINK.
// Using the wrote one results in mismatched-tag error.
REPARSE_GUID_DATA_BUFFER junctionData = new REPARSE_GUID_DATA_BUFFER();
ClrFacade.StructureToPtr<REPARSE_GUID_DATA_BUFFER>(junctionData, outBuffer, false);
result = DeviceIoControl(dangerousHandle, FSCTL_GET_REPARSE_POINT, IntPtr.Zero, 0,
outBuffer, inOutBufferSize, out bytesReturned, IntPtr.Zero);
if (!result)
{
int lastError = Marshal.GetLastWin32Error();
throw new Win32Exception(lastError);
}
junctionData = ClrFacade.PtrToStructure<REPARSE_GUID_DATA_BUFFER>(outBuffer);
junctionData.ReparseDataLength = 0;
junctionData.DataBuffer = new char[MAX_REPARSE_SIZE];
junctionData.ReparseTag = IO_REPARSE_TAG_MOUNT_POINT;
ClrFacade.StructureToPtr<REPARSE_GUID_DATA_BUFFER>(junctionData, inBuffer, false);