internal void GetNames(string[] path, ReturnContainers returnContainers, bool recurse, ProviderRuntime runtime)
{
// the include/exclude filters apply to the results, not to the globbing process. Make this sure
runtime.IgnoreFiltersForGlobbing = true;
// compile here, not in every recursive iteration
var filter = new IncludeExcludeFilter(runtime.Include, runtime.Exclude, false);
// do the globbing manually, because the behavior depends on it...
foreach (var p in path)
{
CmdletProvider provider;
var doGlob = Globber.ShouldGlob(p, runtime);
// even if we don't actually glob, the next method will return the resolved path & provider
var resolved = Globber.GetGlobbedProviderPaths(p, runtime, out provider);
var contProvider = CmdletProvider.As <ContainerCmdletProvider>(provider);
foreach (var curPath in resolved)
{
if (!doGlob && filter.CanBeIgnored && !recurse)
{
contProvider.GetChildNames(curPath, returnContainers, runtime);
continue;
}
if ((recurse || !doGlob) && Item.IsContainer(contProvider, curPath, runtime))
{
ManuallyGetChildNames(contProvider, curPath, "", returnContainers, recurse, filter, runtime);
continue;
}
var cn = Path.ParseChildName(contProvider, curPath, runtime);
if (filter.Accepts(cn))
{
runtime.WriteObject(cn);
}
}
}
}
internal bool Exists(string path, ProviderRuntime runtime)
{
CmdletProvider provider;
var globbedPaths = Globber.GetGlobbedProviderPaths(path, runtime, false, out provider);
var itemProvider = provider as ItemCmdletProvider;
// we assume that in a low level CmdletProvider all items exists. Not sure about this, but I don't want to
// break existing functionality
if (itemProvider == null)
{
return(true);
}
foreach (var p in globbedPaths)
{
var exists = false;
try
{
exists = itemProvider.ItemExists(p, runtime);
}
catch (Exception e)
{
HandleCmdletProviderInvocationException(e);
}
if (exists)
{
return(true);
}
}
return(false);
}
private Collection <T> GlobAndCollect <T>(IList <string> paths, ProviderRuntime runtime,
Func <string, IContentCmdletProvider, T> method)
{
var returnCollection = new Collection <T>();
foreach (var curPath in paths)
{
CmdletProvider provider;
var globbedPaths = Globber.GetGlobbedProviderPaths(curPath, runtime, false, out provider);
var contentProvider = CmdletProvider.As <IContentCmdletProvider>(provider);
provider.ProviderRuntime = runtime; // make sure the runtime is set
foreach (var p in globbedPaths)
{
try
{
returnCollection.Add(method(p, contentProvider));
}
catch (Exception e)
{
HandleCmdletProviderInvocationException(e);
}
}
}
return(returnCollection);
}
// actual work with callid the providers
internal void Get(string[] paths, bool recurse, ProviderRuntime runtime)
{
// the include/exclude filters apply to the results, not to the globbing process. Make this sure
runtime.IgnoreFiltersForGlobbing = true;
// globbing is here a little more complicated, so we do it "manually" (without GlobAndInvoke)
foreach (var curPath in paths)
{
var path = curPath;
// if the path won't be globbed or filtered, we will directly list it's child
var listChildsWithoutRecursion = !Globber.ShouldGlob(path, runtime) && !runtime.HasFilters();
// the Path might be a mixture of a path and an include filter
bool clearIncludeFilter;
path = SplitFilterFromPath(path, recurse, runtime, out clearIncludeFilter);
// now perform the actual globbing
CmdletProvider provider;
var globbed = Globber.GetGlobbedProviderPaths(path, runtime, out provider);
var containerProvider = CmdletProvider.As <ContainerCmdletProvider>(provider);
var filter = new IncludeExcludeFilter(runtime.Include, runtime.Exclude, false);
foreach (var globPath in globbed)
{
try
{
// if we need to actively filter that stuff, we have to handle the recursion manually
if (!filter.CanBeIgnored)
{
ManuallyGetChildItems(containerProvider, globPath, recurse, filter, runtime);
return;
}
// otherwise just get the child items / the item directly
if (recurse || listChildsWithoutRecursion)
{
GetItemOrChildItems(containerProvider, globPath, recurse, runtime);
return;
}
// no recursion and globbing was performed: get the item, not the child items
containerProvider.GetItem(globPath, runtime);
}
catch (Exception e)
{
HandleCmdletProviderInvocationException(e);
}
}
// clean up the include filter of the runtime for the next item, if we split a filter from the path
if (clearIncludeFilter)
{
runtime.Include.Clear();
}
}
}
//internal Collection<string> GetResolvedProviderPathFromProviderPath(string path, string providerId, ProviderRuntime runtime);
//internal Collection<string> GetResolvedProviderPathFromPSPath(string path, ProviderRuntime runtime);
internal Collection <PathInfo> GetResolvedPSPathFromPSPath(string[] paths, ProviderRuntime runtime)
{
var resolved = new Collection <PathInfo>();
foreach (var path in paths)
{
CmdletProvider p;
// by using always a fresh copy of the runtime, we make sure that different paths don't affect each other
var runtimeCopy = new ProviderRuntime(runtime);
var globbed = Globber.GetGlobbedProviderPaths(path, runtimeCopy, out p);
foreach (var curPath in globbed)
{
resolved.Add(new PathInfo(runtimeCopy.PSDriveInfo, curPath, _sessionState));
}
}
return(resolved);
}
internal bool IsContainer(string path, ProviderRuntime runtime)
{
CmdletProvider provider;
var globbedPaths = Globber.GetGlobbedProviderPaths(path, runtime, false, out provider);
var containerProvider = provider as ContainerCmdletProvider;
var isNavProvider = provider is NavigationCmdletProvider;
if (containerProvider == null && !isNavProvider)
{
throw new NotSupportedException("The affected provider doesn't support container related operations.");
}
foreach (var p in globbedPaths)
{
if (!IsContainer(containerProvider, p, runtime))
{
return(false);
}
}
// all globbed paths are containers
return(true);
}
internal void New(string[] paths, string name, string type, object content, ProviderRuntime runtime)
{
var validName = !String.IsNullOrEmpty(name);
CmdletProvider provider;
foreach (var path in paths)
{
Collection <string> resolvedPaths;
// only allow globbing if name is used. otherwise it doesn't make sense
if (validName)
{
resolvedPaths = Globber.GetGlobbedProviderPaths(path, runtime, false, out provider);
}
else
{
ProviderInfo providerInfo;
resolvedPaths = new Collection <string>();
resolvedPaths.Add(Globber.GetProviderSpecificPath(path, runtime, out providerInfo));
provider = SessionState.Provider.GetInstance(providerInfo);
}
var containerProvider = CmdletProvider.As <ContainerCmdletProvider>(provider);
foreach (var curResolvedPath in resolvedPaths)
{
var resPath = curResolvedPath;
if (validName)
{
resPath = Path.Combine(containerProvider, resPath, name, runtime);
}
try
{
containerProvider.NewItem(resPath, type, content, runtime);
}
catch (Exception e)
{
HandleCmdletProviderInvocationException(e);
}
}
}
}
internal void Rename(string path, string newName, ProviderRuntime runtime)
{
CmdletProvider provider;
var globbed = Globber.GetGlobbedProviderPaths(path, runtime, out provider);
if (globbed.Count != 1)
{
throw new PSArgumentException("Cannot rename more than one item", "MultipleItemsRename", ErrorCategory.InvalidArgument);
}
path = globbed[0];
var containerProvider = CmdletProvider.As <ContainerCmdletProvider>(provider);
// TODO: I think Powershell checks whether we are currently in the path we want to remove
// (or a subpath). Check this and throw an error if it's true
try
{
containerProvider.RenameItem(path, newName, runtime);
}
catch (Exception e)
{
HandleCmdletProviderInvocationException(e);
}
}
internal void Clear(string[] path, ProviderRuntime runtime)
{
foreach (var curPath in path)
{
CmdletProvider provider;
var globbedPaths = Globber.GetGlobbedProviderPaths(curPath, runtime, false, out provider);
var contentProvider = CmdletProvider.As <IContentCmdletProvider>(provider);
provider.ProviderRuntime = runtime; // make sure the runtime is set!
foreach (var p in globbedPaths)
{
try
{
if (Item.Exists(p, runtime))
{
contentProvider.ClearContent(p);
}
}
catch (Exception e)
{
HandleCmdletProviderInvocationException(e);
}
}
}
}
