private static JsonCaseInsensitiveStringDictionary <TValue> StringDictionaryUnion <TValue>(
JsonCaseInsensitiveStringDictionary <TValue> thisStringDict,
JsonCaseInsensitiveStringDictionary <TValue> thatStringDict,
Func <TValue, TValue, object> valueUnionizer = null)
where TValue : ICloneable
{
if (thatStringDict == null)
{
return(thisStringDict);
}
if (thisStringDict == null)
{
return((JsonCaseInsensitiveStringDictionary <TValue>)thatStringDict.Clone());
}
foreach (KeyValuePair <string, TValue> item in thatStringDict)
{
if (!thisStringDict.ContainsKey(item.Key))
{
thisStringDict.Add(item.Key, item.Value);
continue;
}
if (valueUnionizer != null)
{
thisStringDict[item.Key] = (TValue)valueUnionizer(thisStringDict[item.Key], item.Value);
}
}
return(thisStringDict);
}
/// <summary>
/// Collate an AssemblyData object for a single assembly.
/// </summary>
/// <param name="asm">the assembly to collect data on.</param>
/// <returns>A pair of the name and data of the given assembly.</returns>
public static KeyValuePair <string, AssemblyData> AssembleAssembly(Assembly asm)
{
AssemblyName asmName = asm.GetName();
var asmNameData = new AssemblyNameData()
{
Name = asmName.Name,
Version = asmName.Version,
Culture = string.IsNullOrEmpty(asmName.CultureName) ? null : asmName.CultureName,
PublicKeyToken = asmName.GetPublicKeyToken(),
};
Type[] types = asm.GetTypes();
JsonCaseInsensitiveStringDictionary <JsonCaseInsensitiveStringDictionary <TypeData> > namespacedTypes = null;
if (types.Any())
{
namespacedTypes = new JsonCaseInsensitiveStringDictionary <JsonCaseInsensitiveStringDictionary <TypeData> >();
foreach (Type type in asm.GetTypes())
{
if (!type.IsPublic)
{
continue;
}
// Some types don't have a namespace, but we still want to file them
string typeNamespace = type.Namespace ?? "";
if (!namespacedTypes.ContainsKey(typeNamespace))
{
namespacedTypes.Add(typeNamespace, new JsonCaseInsensitiveStringDictionary <TypeData>());
}
TypeData typeData = AssembleType(type);
namespacedTypes[typeNamespace][type.Name] = typeData;
}
}
var asmData = new AssemblyData()
{
AssemblyName = asmNameData,
Types = namespacedTypes
};
return(new KeyValuePair <string, AssemblyData>(asmName.Name, asmData));
}
/// <summary>
/// Collate type data from assemblies into an AvailableTypeData object.
/// </summary>
/// <param name="assemblies">the assemblies to collate data from.</param>
/// <param name="typeAccelerators">lookup table of PowerShell type accelerators.</param>
/// <returns>an object describing all the available types from the given assemblies.</returns>
public static AvailableTypeData AssembleAvailableTypes(
IEnumerable <Assembly> assemblies,
IDictionary <string, Type> typeAccelerators,
out IEnumerable <CompatibilityAnalysisException> errors)
{
var errAcc = new List <CompatibilityAnalysisException>();
var typeAcceleratorDict = new JsonCaseInsensitiveStringDictionary <TypeAcceleratorData>(typeAccelerators.Count);
foreach (KeyValuePair <string, Type> typeAccelerator in typeAccelerators)
{
var ta = new TypeAcceleratorData()
{
Assembly = typeAccelerator.Value.Assembly.GetName().Name,
Type = typeAccelerator.Value.FullName
};
typeAcceleratorDict.Add(typeAccelerator.Key, ta);
}
var asms = new JsonCaseInsensitiveStringDictionary <AssemblyData>();
foreach (Assembly asm in assemblies)
{
// Don't want to include this module or assembly in the output
if (Assembly.GetCallingAssembly() == asm)
{
continue;
}
try
{
KeyValuePair <string, AssemblyData> asmData = AssembleAssembly(asm);
asms.Add(asmData.Key, asmData.Value);
}
catch (ReflectionTypeLoadException e)
{
errAcc.Add(new CompatibilityAnalysisException($"Failed to load assembly '{asm.GetName().FullName}'", e));
}
}
errors = errAcc;
return(new AvailableTypeData()
{
TypeAccelerators = typeAcceleratorDict,
Assemblies = asms
});
}
/// <summary>
/// Assembly module data objects into a lookup table.
/// </summary>
/// <param name="modules">An enumeration of module data objects to assemble</param>
/// <returns>A case-insensitive dictionary of versioned module data objects.</returns>
public JsonCaseInsensitiveStringDictionary <JsonDictionary <Version, ModuleData> > AssembleModulesData(
IEnumerable <Tuple <string, Version, ModuleData> > modules)
{
var moduleDict = new JsonCaseInsensitiveStringDictionary <JsonDictionary <Version, ModuleData> >();
foreach (Tuple <string, Version, ModuleData> module in modules)
{
if (moduleDict.TryGetValue(module.Item1, out JsonDictionary <Version, ModuleData> versionDict))
{
versionDict.Add(module.Item2, module.Item3);
continue;
}
var newVersionDict = new JsonDictionary <Version, ModuleData>();
newVersionDict.Add(module.Item2, module.Item3);
moduleDict.Add(module.Item1, newVersionDict);
}
return(moduleDict);
}
/// <summary>
/// Collate type data from assemblies into an AvailableTypeData object.
/// </summary>
/// <param name="assemblies">the assemblies to collate data from.</param>
/// <param name="typeAccelerators">lookup table of PowerShell type accelerators.</param>
/// <returns>an object describing all the available types from the given assemblies.</returns>
public AvailableTypeData AssembleAvailableTypes(
IEnumerable <Assembly> assemblies,
IReadOnlyDictionary <string, Type> typeAccelerators,
out IEnumerable <CompatibilityAnalysisException> errors)
{
var errAcc = new List <CompatibilityAnalysisException>();
var typeAcceleratorDict = new JsonCaseInsensitiveStringDictionary <TypeAcceleratorData>(typeAccelerators.Count);
foreach (KeyValuePair <string, Type> typeAccelerator in typeAccelerators)
{
var ta = new TypeAcceleratorData()
{
Assembly = typeAccelerator.Value.Assembly.GetName().Name,
Type = typeAccelerator.Value.FullName
};
typeAcceleratorDict.Add(typeAccelerator.Key, ta);
}
var asms = new JsonDictionary <string, AssemblyData>();
foreach (Assembly asm in assemblies)
{
// Skip over this
if (asm == s_executingAssembly ||
asm.IsDynamic ||
string.IsNullOrEmpty(asm.Location))
{
continue;
}
if (_excludedAssemblyPathPrefixes != null &&
IsAssemblyPathExcluded(asm.Location))
{
continue;
}
try
{
// First check whether an assembly with this name already exists
// Only replace it if the current one is newer
AssemblyName asmName = asm.GetName();
if (asms.TryGetValue(asmName.Name, out AssemblyData currentAssemblyData) &&
asmName.Version < currentAssemblyData.AssemblyName.Version)
{
continue;
}
KeyValuePair <string, AssemblyData> asmData = AssembleAssembly(asm);
try
{
asms.Add(asmData.Key, asmData.Value);
}
catch (ArgumentException e)
{
// We don't have a way in the schema for two assemblies with the same name, so we just keep the first
// This is not really valid and we should update the schema to subkey the version
errAcc.Add(new CompatibilityAnalysisException($"Found duplicate assemblies with name {asmData.Key}. Kept the first one.", e));
}
}
catch (Exception e) when(e is ReflectionTypeLoadException || e is FileNotFoundException)
{
errAcc.Add(new CompatibilityAnalysisException($"Failed to load assembly '{asm.GetName().FullName}'", e));
}
}
errors = errAcc;
return(new AvailableTypeData()
{
TypeAccelerators = typeAcceleratorDict,
Assemblies = asms
});
}
/// <summary>
/// Get a module data object for the Microsoft.PowerShell.Core pseudo-module.
/// The version is given as the PowerShell version.
/// </summary>
/// <returns>The name, version and data of the core pseudo-module.</returns>
public Tuple <string, Version, ModuleData> GetCoreModuleData()
{
var moduleData = new ModuleData();
IEnumerable <CommandInfo> coreCommands = _pwsh.AddCommand(GcmInfo)
.AddParameter("Module", CORE_MODULE_NAME)
.InvokeAndClear <CommandInfo>();
var cmdletData = new JsonCaseInsensitiveStringDictionary <CmdletData>();
var functionData = new JsonCaseInsensitiveStringDictionary <FunctionData>();
foreach (CommandInfo command in coreCommands)
{
switch (command)
{
case CmdletInfo cmdlet:
try
{
cmdletData.Add(cmdlet.Name, GetSingleCmdletData(cmdlet));
}
catch (RuntimeException)
{
// If we can't load the cmdlet, we just move on
}
continue;
case FunctionInfo function:
try
{
functionData.Add(function.Name, GetSingleFunctionData(function));
}
catch (RuntimeException)
{
// Some functions have problems loading,
// which likely means PowerShell wouldn't be able to run them
}
continue;
default:
throw new CompatibilityAnalysisException($"Command {command.Name} in core module is of unsupported type {command.CommandType}");
}
}
moduleData.Cmdlets = cmdletData;
moduleData.Functions = functionData;
// Get default variables and core aliases out of a fresh runspace
using (SMA.PowerShell freshPwsh = SMA.PowerShell.Create(RunspaceMode.NewRunspace))
{
Collection <PSObject> varsAndAliases = freshPwsh.AddCommand("Get-ChildItem")
.AddParameter("Path", "variable:,alias:")
.InvokeAndClear();
var variables = new List <string>();
var aliases = new JsonCaseInsensitiveStringDictionary <string>();
foreach (PSObject returnedObject in varsAndAliases)
{
switch (returnedObject.BaseObject)
{
case PSVariable variable:
variables.Add(variable.Name);
continue;
case AliasInfo alias:
aliases.Add(alias.Name, GetSingleAliasData(alias));
continue;
// Skip over other objects we get back, since there's no reason to throw
}
}
moduleData.Variables = variables.ToArray();
moduleData.Aliases = aliases;
}
Version psVersion = _psVersion.PreReleaseLabel != null
? new Version(_psVersion.Major, _psVersion.Minor, _psVersion.Build)
: (Version)_psVersion;
return(new Tuple <string, Version, ModuleData>(CORE_MODULE_NAME, psVersion, moduleData));
}
/// <summary>
/// Get a module data object for the Microsoft.PowerShell.Core pseudo-module.
/// The version is given as the PowerShell version.
/// </summary>
/// <returns>The name, version and data of the core pseudo-module.</returns>
public Tuple <string, Version, ModuleData> GetCoreModuleData()
{
var moduleData = new ModuleData();
IEnumerable <CommandInfo> coreCommands = _pwsh.AddCommand(GcmInfo)
.AddParameter("Type", CommandTypes.Alias | CommandTypes.Cmdlet | CommandTypes.Function)
.InvokeAndClear <CommandInfo>()
.Where(commandInfo => string.IsNullOrEmpty(commandInfo.ModuleName) || CORE_MODULE_NAME.Equals(commandInfo.ModuleName, StringComparison.OrdinalIgnoreCase));
var cmdletData = new JsonCaseInsensitiveStringDictionary <CmdletData>();
var functionData = new JsonCaseInsensitiveStringDictionary <FunctionData>();
var aliases = new JsonCaseInsensitiveStringDictionary <string>();
var aliasesToRequest = new List <string>();
foreach (CommandInfo command in coreCommands)
{
switch (command)
{
case CmdletInfo cmdlet:
try
{
cmdletData.Add(cmdlet.Name, GetSingleCmdletData(cmdlet));
}
catch (RuntimeException)
{
// If we can't load the cmdlet, we just move on
}
continue;
case FunctionInfo function:
try
{
functionData.Add(function.Name, GetSingleFunctionData(function));
}
catch (RuntimeException)
{
// Some functions have problems loading,
// which likely means PowerShell wouldn't be able to run them
}
continue;
case AliasInfo alias:
try
{
// Some aliases won't resolve unless specified specifically
if (alias.Definition == null)
{
aliasesToRequest.Add(alias.Name);
continue;
}
aliases.Add(alias.Name, alias.Definition);
}
catch (RuntimeException)
{
// Ignore aliases that have trouble loading
}
continue;
default:
throw new CompatibilityAnalysisException($"Command {command.Name} in core module is of unsupported type {command.CommandType}");
}
}
moduleData.Cmdlets = cmdletData;
moduleData.Functions = functionData;
if (aliasesToRequest != null && aliasesToRequest.Count > 0)
{
IEnumerable <AliasInfo> resolvedAliases = _pwsh.AddCommand(GcmInfo)
.AddParameter("Name", aliasesToRequest)
.InvokeAndClear <AliasInfo>();
foreach (AliasInfo resolvedAlias in resolvedAliases)
{
if (resolvedAlias?.Definition == null)
{
continue;
}
aliases[resolvedAlias.Name] = resolvedAlias.Definition;
}
}
// Get default variables and core aliases out of a fresh runspace
using (SMA.PowerShell freshPwsh = SMA.PowerShell.Create(RunspaceMode.NewRunspace))
{
Collection <PSObject> varsAndAliases = freshPwsh.AddCommand("Get-ChildItem")
.AddParameter("Path", "variable:")
.InvokeAndClear();
var variables = new List <string>();
foreach (PSObject returnedObject in varsAndAliases)
{
switch (returnedObject.BaseObject)
{
case PSVariable variable:
variables.Add(variable.Name);
continue;
// Skip over other objects we get back, since there's no reason to throw
}
}
moduleData.Variables = variables.ToArray();
moduleData.Aliases = aliases;
}
Version psVersion = _psVersion.PreReleaseLabel != null
? new Version(_psVersion.Major, _psVersion.Minor, _psVersion.Build)
: (Version)_psVersion;
return(new Tuple <string, Version, ModuleData>(CORE_MODULE_NAME, psVersion, moduleData));
}