如何从MSI“文件”表中提取数据(文件计数)

创建一个新的visual studio项目,添加一个引用 c:\windows\system32\msi.dll

Type installerType = Type.GetTypeFromProgID("WindowsInstaller.Installer");
var installer =
   (WindowsInstaller.Installer)Activator.CreateInstance(installerType);
var msi = installer.OpenDatabase(@"path\to\some\file.msi", 0);
var fileView = msi.OpenView("SELECT FileName FROM File");
fileView.Execute(null);
int fileCount = 0;
while (fileView.Fetch() != null)
{
   fileCount++;
}
Console.WriteLine(fileCount);

WindowsInstaller.Installer COM对象,它是windows安装程序自动化API的入口点。看看 complete reference documentation .

C:\program files\Windows Installer XML v3\sdk

var database = new Database(@"\path\to\some\file.msi");
var list = database.ExecuteQuery("SELECT FileName FROM File");
Console.WriteLine(list.Count);

SELECT `File` FROM `File` 

一旦你把所有的工具都准备好了,解决方案就会变得非常简单。

public class VerifyMsiFileCount : Task
{
    [Required]
    public string MsiFile { get; set; }

    [Required]
    public string Directory { get; set; }

    public override bool Execute()
    {
       Database database = new Database(MsiFile, DatabaseOpenMode.ReadOnly);
        IList msiFiles = database.ExecuteQuery("SELECT FileName FROM File", new Record(0));
        IList<string> files = new List<string>(
            System.IO.Directory.GetFiles(Directory, "*", SearchOption.AllDirectories));
        return compareContents(msiFiles, files);
    }

    bool compareContents(IList msiFiles, IList<string> files)
    {
        // Always false if count mismatch, but helpful to know which file(s) are missing
        bool result = msiFiles.Count == files.Count;

        StringBuilder sb = new StringBuilder(msiFiles.Count);
        foreach (string msiFile in msiFiles)
        {
            sb.AppendLine(msiFile.ToUpper());
        }
        string allMsiFiles = sb.ToString();

        // Could be optimized using regex - each non-matched line in allMsiFiles
        string filename;
        foreach (string file in files)
        {
            filename = file.ToUpper();
            // Strip directory as File table in MSI does funky things with directory prefixing
            if (filename.Contains(Path.DirectorySeparatorChar.ToString()))
            {
                filename = filename.Substring(file.LastIndexOf(Path.DirectorySeparatorChar) + 1);
            }
            if (!allMsiFiles.Contains(filename))
            {
                result = false;
                MSBuildHelper.Log(this, file + " appears to be missing from MSI File table",
                    MessageImportance.High);
            }
        }
        return result;
    }
}

• 为了简洁起见,我省略了文档。
• MSBuildHelper。Log只是ITask的一个简单包装器。构建引擎。LogMessageEvent用于捕获运行单元测试的NullReferenceException。
• 比较逻辑可能看起来有点奇怪,但File表在目录前缀方面做了一些奇怪的事情,我还想避免可能删除文件并添加新文件的边缘情况,因此文件计数是正确的,但msi内容是错误的:)

以下是相应的单元测试,假设你有 Test.msi

[TestFixture]
public class VerifyMsiFileCountFixture
{
    VerifyMsiFileCount verify;

    [SetUp]
    public void Setup()
    {
        verify = new VerifyMsiFileCount();
    }

    [Test]
    [ExpectedException(typeof(InstallerException))]
    public void Execute_ThrowsInstallerException_InvalidMsiFilePath()
    {
        verify.Directory = Environment.CurrentDirectory;
        verify.MsiFile = "Bogus";
        verify.Execute();
    }

    [Test]
    [ExpectedException(typeof(DirectoryNotFoundException))]
    public void Execute_ThrowsDirectoryNotFoundException_InvalidDirectoryPath()
    {
        verify.Directory = "Bogus";
        verify.MsiFile = "Test.msi";
        verify.Execute();
    }

    [Test]
    public void Execute_ReturnsTrue_ValidDirectoryAndFile()
    {
        string directory = Path.Combine(Environment.CurrentDirectory, "Temp");
        string file = Path.Combine(directory, "Test.txt");
        Directory.CreateDirectory(directory);
        File.WriteAllText(file, "Temp");
        try
        {
            verify.Directory = directory;
            verify.MsiFile = "Test.msi";
            Assert.IsTrue(verify.Execute());
        }
        finally
        {
            File.Delete(file);
            Directory.Delete(directory);
        }
    }

    [Test]
    public void Execute_ReturnsFalse_NoFileDefined()
    {
        string directory = Path.Combine(Environment.CurrentDirectory, "Temp");
        Directory.CreateDirectory(directory);
        try
        {
            verify.Directory = directory;
            verify.MsiFile = "Test.msi";
            Assert.IsFalse(verify.Execute());
        }
        finally
        {
            Directory.Delete(directory);
        }
    }

    [Test]
    public void Execute_ReturnsFalse_IncorrectFilename()
    {
        string directory = Path.Combine(Environment.CurrentDirectory, "Temp");
        string file = Path.Combine(directory, "Bogus.txt");
        Directory.CreateDirectory(directory);
        File.WriteAllText(file, "Temp");
        try
        {
            verify.Directory = directory;
            verify.MsiFile = "Test.msi";
            Assert.IsFalse(verify.Execute());
        }
        finally
        {
            File.Delete(file);
            Directory.Delete(directory);
        }
    }

    [Test]
    public void Execute_ReturnsFalse_ExtraFileDefined()
    {
        string directory = Path.Combine(Environment.CurrentDirectory, "Temp");
        string file1 = Path.Combine(directory, "Test.txt");
        string file2 = Path.Combine(directory, "Bogus.txt");
        Directory.CreateDirectory(directory);
        File.WriteAllText(file1, "Temp");
        File.WriteAllText(file2, "Temp");
        try
        {
            verify.Directory = directory;
            verify.MsiFile = "Test.msi";
            Assert.IsFalse(verify.Execute());
        }
        finally
        {
            File.Delete(file1);
            File.Delete(file2);
            Directory.Delete(directory);
        }
    }
}

This