// <file>
// <copyright see="prj:///doc/copyright.txt"/>
// <license see="prj:///doc/license.txt"/>
// <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
// <version>$Revision: 2631 $</version>
// </file>
using System;
using System.Collections.Generic;
using System.Reflection;
using System.Text;
using MSjogren.GacTool.FusionNative;
namespace ICSharpCode.SharpDevelop.Dom
{
/// <summary>
/// Class with static members to access the content of the global assembly
/// cache.
/// </summary>
public static class GacInterop
{
static string cachedGacPath;
public static string GacRootPath {
get {
if (cachedGacPath == null) {
cachedGacPath = Fusion.GetGacPath();
}
return cachedGacPath;
}
}
public static List<DomAssemblyName> GetAssemblyList()
{
IApplicationContext applicationContext = null;
IAssemblyEnum assemblyEnum = null;
IAssemblyName assemblyName = null;
List<DomAssemblyName> l = new List<DomAssemblyName>();
Fusion.CreateAssemblyEnum(out assemblyEnum, null, null, 2, 0);
while (assemblyEnum.GetNextAssembly(out applicationContext, out assemblyName, 0) == 0) {
uint nChars = 0;
assemblyName.GetDisplayName(null, ref nChars, 0);
StringBuilder sb = new StringBuilder((int)nChars);
assemblyName.GetDisplayName(sb, ref nChars, 0);
l.Add(new DomAssemblyName(sb.ToString()));
}
return l;
}
/// <summary>
/// Gets the full display name of the GAC assembly of the specified short name
/// </summary>
public static DomAssemblyName FindBestMatchingAssemblyName(string name)
{
return FindBestMatchingAssemblyName(new DomAssemblyName(name));
}
public static DomAssemblyName FindBestMatchingAssemblyName(DomAssemblyName name)
{
string[] info;
string version = name.Version;
string publicKey = name.PublicKeyToken;
IApplicationContext applicationContext = null;
IAssemblyEnum assemblyEnum = null;
IAssemblyName assemblyName;
Fusion.CreateAssemblyNameObject(out assemblyName, name.ShortName, 0, 0);
Fusion.CreateAssemblyEnum(out assemblyEnum, null, assemblyName, 2, 0);
List<string> names = new List<string>();
while (assemblyEnum.GetNextAssembly(out applicationContext, out assemblyName, 0) == 0) {
uint nChars = 0;
assemblyName.GetDisplayName(null, ref nChars, 0);
StringBuilder sb = new StringBuilder((int)nChars);
assemblyName.GetDisplayName(sb, ref nChars, 0);
string fullName = sb.ToString();
if (publicKey != null) {
info = fullName.Split(',');
if (publicKey != info[3].Substring(info[3].LastIndexOf('=') + 1)) {
// Assembly has wrong public key
continue;
}
}
names.Add(fullName);
}
if (names.Count == 0)
return null;
string best = null;
Version bestVersion = null;
Version currentVersion;
if (version != null) {
// use assembly with lowest version higher or equal to required version
Version requiredVersion = new Version(version);
for (int i = 0; i < names.Count; i++) {
info = names[i].Split(',');
currentVersion = new Version(info[1].Substring(info[1].LastIndexOf('=') + 1));
if (currentVersion.CompareTo(requiredVersion) < 0)
continue; // version not good enough
if (best == null || currentVersion.CompareTo(bestVersion) < 0) {
bestVersion = currentVersion;
best = names[i];
}
}
if (best != null)
return new DomAssemblyName(best);
}
// use assembly with highest version
best = names[0];
info = names[0].Split(',');
bestVersion = new Version(info[1].Substring(info[1].LastIndexOf('=') + 1));
for (int i = 1; i < names.Count; i++) {
info = names[i].Split(',');
currentVersion = new Version(info[1].Substring(info[1].LastIndexOf('=') + 1));
if (currentVersion.CompareTo(bestVersion) > 0) {
bestVersion = currentVersion;
best = names[i];
}
}
return new DomAssemblyName(best);
}
}
}
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