Add SigFiles and Tests

removed one indentation

.editorconfig

@@ -10,7 +10,7 @@ indent_style = space
 tab_width = 4
 
 # Naming Conventions
-dotnet_naming_style.pascal_case_style.capitalization = pascal_case
+dotnet_naming_style.camel_case.capitalization = camel_case
 
 # New line preferences
 csharp_new_line_before_open_brace = none

.gitignore

@@ -1,3 +1,4 @@
 .vscode/
-obj/
-bin/
+[Oo]bj/
+[Bb]in/
+.sonarqube/

Program.cs

@@ -1,16 +0,0 @@
-public class Program {
-    static void Main(string[] args) {
-        if (args.Length == 0) {
-            Console.ForegroundColor = ConsoleColor.Red;
-            Console.WriteLine("Please specify an option.");
-            Console.ResetColor();
-        } else {
-            switch (args[0]) {
-                case "":
-                    break;
-                default:
-                    break;
-            }
-        }
-    }
-}

justfile

@@ -0,0 +1,31 @@
+default:
+    @just --list
+
+project_name := `printf '%s\n' "${PWD##*/}"`
+uppercase_project_name := capitalize(project_name)
+
+setup:
+    @dotnet new sln --name {{project_name}}
+    @mkdir src
+    @dotnet new classlib -o  src/{{uppercase_project_name}}
+    @dotnet new xunit -o src/{{uppercase_project_name}}.Tests
+    @dotnet sln add src/{{uppercase_project_name}}/{{uppercase_project_name}}.csproj
+    @dotnet sln add src/{{uppercase_project_name}}.Tests/{{uppercase_project_name}}.Tests.csproj
+    @dotnet add src/{{uppercase_project_name}}/{{uppercase_project_name}}.csproj reference src/{{uppercase_project_name}}.Tests/{{uppercase_project_name}}.Tests.csproj
+
+run:
+    @dotnet run
+
+build:
+    @dotnet build src/{{uppercase_project_name}}/{{project_name}}.csproj
+    @dotnet build src/{{uppercase_project_name}}.Tests/{{uppercase_project_name}}.Tests.csproj
+
+publish: format
+    @dotnet publish --configuration Release src/{{uppercase_project_name}}/{{project_name}}.csproj
+
+format:
+    @dotnet format src/{{uppercase_project_name}}
+    @dotnet format src/{{uppercase_project_name}}.Tests
+
+test: build
+    @dotnet test src/{{uppercase_project_name}}.Tests

pacserver.cs

@@ -1,23 +0,0 @@
-public class Pacserver {
-    public static string pacmanCacheDirectory { get; set; } = string.Empty;
-    public static string determinePacmanCacheDirectory() {
-        return pacmanCacheDirectory;
-    }
-
-    public static string pacmanDatabaseDirectory { get; set; } = string.Empty;
-    public static string determinePacmanDatabaseDirectory() {
-        return pacmanDatabaseDirectory;
-    }
-
-    public static void checkForNewerPackagesAndDatabases() {
-
-    }
-
-    public static void transferPacmanCache() {
-
-    }
-
-    public static void transferPacmanDatabases() {
-
-    }
-}

src/Pacserver.Tests/Pacserver.Tests.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <RuntimeIdentifier>linux-x64</RuntimeIdentifier>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.11.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
+    <PackageReference Include="xunit" Version="2.4.2" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="coverlet.collector" Version="3.1.2">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Pacserver\pacserver.csproj" />
+  </ItemGroup>
+
+</Project>

src/Pacserver.Tests/TransferFilesTest.cs

@@ -0,0 +1,18 @@
+using Pacserver.Utils;
+
+namespace Pacserver.Tests;
+
+public class TranserFilesTest {
+    [Fact]
+    public async void transferPacmanCache_doesNotFail() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+
+        // Act
+        utils.readPacmanConfig();
+        Action act = () => utils.transfer();
+
+        // Assert
+        act.Should().NotThrow();
+    }
+}

src/Pacserver.Tests/Usings.cs

@@ -0,0 +1,2 @@
+global using Xunit;
+global using FluentAssertions;

src/Pacserver.Tests/checkForNewerStuffTest.cs

@@ -0,0 +1,62 @@
+using Pacserver.Utils;
+
+namespace Pacserver.Tests;
+
+public class checkForNewerStuffTest {
+    [Fact]
+    public void checkForNewerPackages_throwsExceptionIfNoFilesExist() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+        File.Delete(utils.pacserverDirectory + "packages_before.txt");
+        File.Delete(utils.pacserverDirectory + "packages_after.txt");
+
+        // Act
+        Action act = () => utils.diff(utils.pacserverDirectory + "packages_before.txt", utils.pacserverDirectory + "packages_after.txt");
+
+        // Assert
+        act.Should().Throw<FileNotFoundException>().WithMessage("Necessary files could not be found");
+    }
+
+    [Fact]
+    public void getEveryPackageNameAndVersionViaFolderName_createsFiles() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+        Directory.CreateDirectory("/tmp/pacserverTest/");
+        utils.pacmanCacheDirectory = "/tmp/pacserverTest/";
+
+        // Act
+        utils.getEveryPackageNameAndVersion("before", utils.pacserverDirectory + "packages_before.txt");
+        utils.getEveryPackageNameAndVersion("after", utils.pacserverDirectory + "packages_after.txt");
+
+        // Assert
+        File.Exists(utils.pacserverDirectory + "packages_before.txt").Should().BeTrue();
+        File.Exists(utils.pacserverDirectory + "packages_before.txt").Should().BeTrue();
+    }
+
+    [Fact]
+    public void packageNamesAndVersion_isEmpty() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+        Directory.CreateDirectory("/tmp/pacserverTest/");
+        utils.pacmanCacheDirectory = "/tmp/pacserverTest/";
+        utils.getEveryPackageNameAndVersion("before", utils.pacserverDirectory + "packages_before.txt");
+
+        // Act
+        var packageList = utils.packageNamesAndVersion;
+
+        // Assert
+        packageList.Should().BeEmpty();
+    }
+
+    [Fact]
+    public void getEveryPackageNameAndVersionViaFolderName_throwsExceptionIfModeIsNotValid() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+
+        // Act
+        Action act = () => utils.getEveryPackageNameAndVersion("test", utils.pacserverDirectory + "test.txt");
+
+        // Assert
+        act.Should().Throw<ArgumentException>().WithMessage("No valid mode was given. Valid modes are before and after");
+    }
+}

src/Pacserver.Tests/checkIfDatabasesWereModifiedTest.cs

@@ -0,0 +1,31 @@
+using Pacserver.Utils;
+
+namespace Pacserver.Tests;
+
+public class checkIfDatabasesWereModifiedTest {
+    [Fact]
+    public void checkIfDatabasesWereModified_throwsExceptionIfNoValidModeIsGiven() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+        utils.readPacmanConfig();
+
+        // Act
+        Action act = () => utils.checkIfDatabasesWereModified("test", "/tmp/test.txt");
+
+        // Assert
+        act.Should().Throw<ArgumentException>().WithMessage("No valid mode was given. Valid modes are before and after");
+    }
+
+    [Fact]
+    public void checkIfDatabasesWereModified_throwsNoExceptionIfValidModeIsGiven() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+        utils.readPacmanConfig();
+
+        // Act
+        Action act = () => utils.checkIfDatabasesWereModified("before", "/tmp/test.txt");
+
+        // Assert
+        act.Should().NotThrow();
+    }
+}

src/Pacserver.Tests/getEverySigFileTest.cs

@@ -0,0 +1,22 @@
+using Pacserver.Utils;
+
+namespace Pacserver.Tests;
+
+public class getEverySigFileTest {
+    [Fact]
+    public void getEverySigFile_ListShouldNotBeEmpty() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+        Directory.CreateDirectory("/tmp/pacserverTest/");
+        utils.pacmanCacheDirectory = "/tmp/pacserverTest/";
+        File.Create(utils.pacmanCacheDirectory + "zsh-5.9-3-x86_64.pkg.tar.zst.sig");
+
+        // Act
+        utils.getEverySigFile();
+        var sigFiles = utils.sigFiles;
+        Directory.Delete(utils.pacmanCacheDirectory, true);
+
+        // Assert
+        sigFiles.Should().NotBeEmpty();
+    }
+}

src/Pacserver.Tests/readPacmanConfigTest.cs

@@ -0,0 +1,18 @@
+using Pacserver.Utils;
+
+namespace Pacserver.Tests;
+
+public class readPacmanConfigTest {
+    [Fact]
+    public void readPacmanConfig_returnsNoException() {
+        // Arrange
+        PacserverUtils utils = new PacserverUtils();
+
+        // Act
+        var exception = Record.Exception(() => utils.readPacmanConfig());
+
+        // Assert
+        Assert.Null(exception);
+    }
+}
+

src/Pacserver/Pacserver.cs

@@ -0,0 +1,197 @@
+using System.Collections.Immutable;
+using System.Text.RegularExpressions;
+
+namespace Pacserver.Utils;
+public partial class PacserverUtils {
+    public string? pacserverDirectory { get; set; }
+    public void prerequisites() {
+        AppDomain.CurrentDomain.SetData("REGEX_DEFAULT_MATCH_TIMEOUT", TimeSpan.FromMilliseconds(100));
+
+        pacserverDirectory = "/tmp/pacserver/";
+        pacmanCacheDirectory = string.Empty;
+        pacmanDatabaseDirectory = string.Empty;
+
+        if (!Directory.Exists(pacserverDirectory)) {
+            Directory.CreateDirectory(pacserverDirectory);
+        }
+    }
+
+    public void cleanup() {
+        if (Directory.Exists(pacserverDirectory)) {
+            Directory.Delete(pacserverDirectory, true);
+        }
+    }
+
+    public string? pacmanCacheDirectory { get; set; }
+    public string? pacmanDatabaseDirectory { get; set; }
+    public readonly ImmutableList<String> pathsToDetermine = ImmutableList.Create("CacheDir", "DBPath");
+    [GeneratedRegex(@"\/(?:[\w.-]+\/)*[\w.-]+(?:\.\w+)*\/?$", RegexOptions.NonBacktracking)] // https://regex101.com/r/GwWeui/2
+    private static partial Regex CacheDirOrDBPathRegex();
+    public void readPacmanConfig() {
+        using (StreamReader file = new StreamReader("/etc/pacman.conf")) {
+
+            string? line;
+
+            while ((line = file.ReadLine()) is not null) {
+                string cachePath = pathsToDetermine[0];
+                string dbPath = pathsToDetermine[1];
+
+                if (!line.Contains(cachePath) && !line.Contains(dbPath)) {
+                    continue;
+                }
+
+                Match match = CacheDirOrDBPathRegex().Match(line);
+
+                if (!match.Success) {
+                    string pathsToDetermineString = string.Join(",", pathsToDetermine);
+                    throw new DirectoryNotFoundException("Could not determine the necessary file paths: " + pathsToDetermineString);
+                }
+
+                if (line.Contains(cachePath)) {
+                    pacmanCacheDirectory = match.ToString();
+                } else if (line.Contains(dbPath)) {
+                    pacmanDatabaseDirectory = match.ToString();
+                }
+            }
+        }
+    }
+
+    public List<String> packageNamesAndVersion = new List<String>();
+    [GeneratedRegex(@".+\.pkg\.tar\.zst$", RegexOptions.NonBacktracking)]
+    private static partial Regex onlyGetPackages();
+    public void getEveryPackageNameAndVersion(string mode, string filePath) {
+        if (Directory.Exists(pacmanCacheDirectory)) {
+            if (Directory.GetFiles(pacmanCacheDirectory) is not null) {
+                packageNamesAndVersion = Directory.GetFiles(pacmanCacheDirectory).Where(file => onlyGetPackages().IsMatch(file)).ToList();
+            } else {
+                Console.WriteLine("No packages found in pacman cache");
+            }
+        } else {
+            Console.WriteLine("No pacman cache directory found");
+        }
+
+        switch (mode) {
+            case "before":
+                writePackageNamesAndVersionToFile(filePath);
+                break;
+            case "after":
+                writePackageNamesAndVersionToFile(filePath);
+                break;
+            default:
+                throw new ArgumentException("No valid mode was given. Valid modes are before and after");
+        }
+    }
+
+    public void writePackageNamesAndVersionToFile(string filePath) {
+        if (File.Exists(filePath)) {
+            File.Delete(filePath);
+        }
+
+        using (File.Open(filePath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite)) {
+            using (StreamWriter sw = new StreamWriter(filePath)) {
+                foreach (string package in packageNamesAndVersion) {
+                    sw.WriteLine(package);
+                }
+            }
+        }
+    }
+
+    public List<String> sigFiles = new List<String>();
+    [GeneratedRegex(@".+\.pkg\.tar\.zst\.sig$", RegexOptions.NonBacktracking)]
+    private static partial Regex onlyGetSigFiles();
+    public void getEverySigFile() {
+        if (Directory.Exists(pacmanCacheDirectory)) {
+            if (Directory.GetFiles(pacmanCacheDirectory) is not null) {
+                sigFiles = Directory.GetFiles(pacmanCacheDirectory).Where(file => onlyGetSigFiles().IsMatch(file)).ToList();
+            }
+        }
+    }
+
+    public List<String> diffOfPackagesOrDatabases = new List<String>();
+    public void diff(string before, string after) {
+        if (File.Exists(before) && File.Exists(after)) {
+            diffOfPackagesOrDatabases = File.ReadAllLines(after).Except(File.ReadLines(before)).ToList();
+        } else {
+            throw new FileNotFoundException("Necessary files could not be found");
+        }
+    }
+
+    public void saveDiffToFile(string filePath) {
+        if (File.Exists(filePath)) {
+            File.Delete(filePath);
+        }
+
+        using (File.Open(filePath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite)) {
+            using (StreamWriter sw = new StreamWriter(filePath)) {
+                foreach (string packageOrDatabase in diffOfPackagesOrDatabases) {
+                    sw.WriteLine(packageOrDatabase);
+                }
+            }
+        }
+    }
+
+    public List<String> readDiffFileToList(string filePath) {
+        using (File.Open(filePath, FileMode.Open, FileAccess.Read, FileShare.Read)) {
+            return File.ReadAllLines(filePath).ToList();
+        }
+    }
+
+    public List<String> databases = new List<String>();
+    public void checkIfDatabasesWereModified(string mode, string filePath) {
+        databases = Directory.GetFiles(pacmanDatabaseDirectory + "sync/").ToList();
+
+        switch (mode) {
+            case "before":
+                writeDatabaseAccessTimeToFile(filePath);
+                break;
+            case "after":
+                writeDatabaseAccessTimeToFile(filePath);
+                break;
+            default:
+                throw new ArgumentException("No valid mode was given. Valid modes are before and after");
+        }
+    }
+
+    public void writeDatabaseAccessTimeToFile(string filePath) {
+        if (File.Exists(filePath)) {
+            File.Delete(filePath);
+        }
+
+        using (File.Open(filePath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.Read)) {
+            using (StreamWriter sw = new StreamWriter(filePath)) {
+                foreach (string database in databases) {
+                    sw.WriteLine(database + " " + File.GetLastAccessTime(database));
+                }
+            }
+        }
+    }
+
+    public List<String> databasesToTransfer = new List<String>();
+    [GeneratedRegex(@"\/(?:[\w.-]+\/)*[\w.-]+(?:\.\w+)*\/*db", RegexOptions.NonBacktracking)] // https://regex101.com/r/Wm5M0P/1
+    private static partial Regex onlyGetDatabaseName();
+    public void filterDiffOutputForDatabases() {
+        foreach (string database in diffOfPackagesOrDatabases) {
+            databasesToTransfer.Add(onlyGetDatabaseName().Match(database).Value);
+        }
+    }
+
+    private static List<String> newerPackagesAndDatabases = new List<String>();
+    public void combinePackagesWithDatabases() {
+        newerPackagesAndDatabases.AddRange(packageNamesAndVersion);
+        newerPackagesAndDatabases.AddRange(databasesToTransfer);
+        newerPackagesAndDatabases.AddRange(sigFiles);
+    }
+
+    public async Task transfer() {
+        HttpClient client = new HttpClient();
+        HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, "http://192.168.0.69:12000/upload?path=/");
+        MultipartFormDataContent content = new MultipartFormDataContent();
+
+        foreach (string pkgOrDb in newerPackagesAndDatabases) {
+            content.Add(new ByteArrayContent(File.ReadAllBytes(pacmanCacheDirectory + pkgOrDb)), "path", Path.GetFileName(pacmanCacheDirectory + pkgOrDb));
+        }
+        request.Content = content;
+
+        await client.SendAsync(request);
+    }
+}

src/Pacserver/Program.cs

@@ -0,0 +1,52 @@
+using Pacserver.Utils;
+
+public class Program {
+
+    protected Program() {
+    }
+    static void Main(string[] args) {
+        if (args.Length == 0) {
+            Console.ForegroundColor = ConsoleColor.Red;
+            Console.WriteLine("Please specify an option.");
+            Console.ResetColor();
+            Console.WriteLine("Possible options are: before, after");
+            return;
+        }
+
+        PacserverUtils utils = new PacserverUtils();
+        utils.prerequisites();
+        utils.readPacmanConfig();
+
+        switch (args[0]) {
+            case "before":
+                utils.getEveryPackageNameAndVersion("before", utils.pacserverDirectory + "packages_before.txt");
+                utils.checkIfDatabasesWereModified("before", utils.pacserverDirectory + "databases_before.txt");
+                break;
+            case "after":
+                utils.getEveryPackageNameAndVersion("after", utils.pacserverDirectory + "packages_after.txt");
+                utils.checkIfDatabasesWereModified("after", utils.pacserverDirectory + "databases_after.txt");
+
+                utils.diff(utils.pacserverDirectory + "packages_before.txt", utils.pacserverDirectory + "packages_after.txt");
+                utils.saveDiffToFile(utils.pacserverDirectory + "package_diff.txt");
+
+                utils.diff(utils.pacserverDirectory + "databases_before.txt", utils.pacserverDirectory + "databases_after.txt");
+                utils.saveDiffToFile(utils.pacserverDirectory + "database_diff.txt");
+                utils.filterDiffOutputForDatabases();
+
+                utils.packageNamesAndVersion = utils.readDiffFileToList(utils.pacserverDirectory + "package_diff.txt");
+
+                utils.getEverySigFile();
+                utils.combinePackagesWithDatabases();
+                utils.transfer();
+
+                utils.cleanup();
+                break;
+            default:
+                Console.ForegroundColor = ConsoleColor.Red;
+                Console.WriteLine(args[0] + " is not a recognized option.");
+                Console.ResetColor();
+                Console.WriteLine("Possible options are: before, after");
+                break;
+        }
+    }
+}

src/pacserver.sln

@@ -0,0 +1,32 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "pacserver", "Pacserver\pacserver.csproj", "{2B605458-AFBE-4A78-B4EA-9562C82BC932}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Pacserver.Tests", "Pacserver.Tests\Pacserver.Tests.csproj", "{0B504958-E66D-4E32-AB22-19F94713AFCD}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{6FCF1241-CE3C-4A4A-8625-866A4E8E7623}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6FCF1241-CE3C-4A4A-8625-866A4E8E7623}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6FCF1241-CE3C-4A4A-8625-866A4E8E7623}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6FCF1241-CE3C-4A4A-8625-866A4E8E7623}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2B605458-AFBE-4A78-B4EA-9562C82BC932}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2B605458-AFBE-4A78-B4EA-9562C82BC932}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2B605458-AFBE-4A78-B4EA-9562C82BC932}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2B605458-AFBE-4A78-B4EA-9562C82BC932}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0B504958-E66D-4E32-AB22-19F94713AFCD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0B504958-E66D-4E32-AB22-19F94713AFCD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0B504958-E66D-4E32-AB22-19F94713AFCD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0B504958-E66D-4E32-AB22-19F94713AFCD}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal