.gitignore

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

src/Pacserver.Tests/TransferFilesTest.cs

@@ -4,15 +4,15 @@ namespace Pacserver.Tests;
 
 public class TranserFilesTest {
     [Fact]
-    public void transferPacmanCache_doesNotFail() {
+    public async void transferPacmanCache_doesNotFail() {
         // Arrange
         PacserverUtils utils = new PacserverUtils();
 
         // Act
         utils.readPacmanConfig();
-        utils.transferPacmanCache();
+        Action act = () => utils.transfer();
 
         // Assert
-        //Assert.NotEmpty(Directory.GetFiles("/home/rene/test/"));
+        act.Should().NotThrow();
     }
 }

src/Pacserver.Tests/checkForNewerStuffTest.cs

@@ -7,11 +7,11 @@ public class checkForNewerStuffTest {
     public void checkForNewerPackages_throwsExceptionIfNoFilesExist() {
         // Arrange
         PacserverUtils utils = new PacserverUtils();
-        File.Delete("/tmp/packages_before.txt");
+        File.Delete(utils.pacserverDirectory + "packages_before.txt");
-        File.Delete("/tmp/packages_after.txt");
+        File.Delete(utils.pacserverDirectory + "packages_after.txt");
 
         // Act
-        Action act = () => utils.diff("/tmp/packages_before.txt", "/tmp/packages_after.txt");
+        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");
@@ -21,29 +21,31 @@ public class checkForNewerStuffTest {
     public void getEveryPackageNameAndVersionViaFolderName_createsFiles() {
         // Arrange
         PacserverUtils utils = new PacserverUtils();
-        utils.readPacmanConfig();
+        Directory.CreateDirectory("/tmp/pacserverTest/");
+        utils.pacmanCacheDirectory = "/tmp/pacserverTest/";
 
         // Act
-        utils.getEveryPackageNameAndVersion("before", "/tmp/packages_before.txt");
+        utils.getEveryPackageNameAndVersion("before", utils.pacserverDirectory + "packages_before.txt");
-        utils.getEveryPackageNameAndVersion("after", "/tmp/packages_after.txt");
+        utils.getEveryPackageNameAndVersion("after", utils.pacserverDirectory + "packages_after.txt");
 
         // Assert
-        File.Exists("/tmp/packages_before.txt").Should().BeTrue();
+        File.Exists(utils.pacserverDirectory + "packages_before.txt").Should().BeTrue();
-        File.Exists("/tmp/packages_before.txt").Should().BeTrue();
+        File.Exists(utils.pacserverDirectory + "packages_before.txt").Should().BeTrue();
     }
 
     [Fact]
-    public void packageNamesAndVersion_notEmpty() {
+    public void packageNamesAndVersion_isEmpty() {
         // Arrange
         PacserverUtils utils = new PacserverUtils();
-        utils.readPacmanConfig();
+        Directory.CreateDirectory("/tmp/pacserverTest/");
-        utils.getEveryPackageNameAndVersion("before", "/tmp/packages_before.txt");
+        utils.pacmanCacheDirectory = "/tmp/pacserverTest/";
+        utils.getEveryPackageNameAndVersion("before", utils.pacserverDirectory + "packages_before.txt");
 
         // Act
-        List<String> packageList = utils.packageNamesAndVersion;
+        var packageList = utils.packageNamesAndVersion;
 
         // Assert
-        packageList.Should().NotBeNullOrEmpty();
+        packageList.Should().BeEmpty();
     }
 
     [Fact]
@@ -52,7 +54,7 @@ public class checkForNewerStuffTest {
         PacserverUtils utils = new PacserverUtils();
 
         // Act
-        Action act = () => utils.getEveryPackageNameAndVersion("test", "/tmp/test.txt");
+        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/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/Pacserver.cs

@@ -1,48 +1,68 @@
-using System.Net.Http.Headers;
+using System.Collections.Immutable;
 using System.Text.RegularExpressions;
 
 namespace Pacserver.Utils;
-public class PacserverUtils {
+public partial class PacserverUtils {
-    public string pacmanCacheDirectory = string.Empty;
+    public string? pacserverDirectory { get; set; }
-    public string pacmanDatabaseDirectory = string.Empty;
+    public void prerequisites() {
-    public static List<String> pathsToDetermine = new List<String>() { "CacheDir", "DBPath" };
+        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+)*\/?$", RegexOptions.NonBacktracking)] // https://regex101.com/r/GwWeui/2
+    private static partial Regex CacheDirOrDBPathRegex();
     public void readPacmanConfig() {
         using (StreamReader file = new StreamReader("/etc/pacman.conf")) {
-            Regex regex = new Regex(@"\/(?:[\w.-]+\/)*[\w.-]+(?:\.\w+)*\/?$"); // https://regex101.com/r/GwWeui/2
+
             string? line;
 
             while ((line = file.ReadLine()) is not null) {
-                foreach (string path in pathsToDetermine) {
+                string cachePath = pathsToDetermine[0];
-                    if (line.Contains(path)) {
+                string dbPath = pathsToDetermine[1];
-                        Match match = regex.Match(line);
+
-                        if (match.Success) {
+                if (!line.Contains(cachePath) && !line.Contains(dbPath)) {
-                            switch (path) {
+                    continue;
-                                case "CacheDir":
-                                    pacmanCacheDirectory = match.ToString();
-                                    break;
-                                case "DBPath":
-                                    pacmanDatabaseDirectory = match.ToString();
-                                    break;
-                                default:
-                                    throw new Exception("Could not deal with " + match.ToString());
                 }
-                        } else {
+
+                Match match = CacheDirOrDBPathRegex().Match(line);
+
+                if (!match.Success) {
                     string pathsToDetermineString = string.Join(",", pathsToDetermine);
-                            throw new Exception("Could not determine the necessary file paths: " + pathsToDetermineString);
+                    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$", RegexOptions.NonBacktracking)]
+    private static partial Regex onlyGetPackages();
     public void getEveryPackageNameAndVersion(string mode, string filePath) {
-        Regex regex = new Regex(@".+\.pkg\.tar\.zst$");
-
         if (Directory.Exists(pacmanCacheDirectory)) {
             if (Directory.GetFiles(pacmanCacheDirectory) is not null) {
-                packageNamesAndVersion = Directory.GetFiles(pacmanCacheDirectory).Where(file => regex.IsMatch(file)).ToList();
+                packageNamesAndVersion = Directory.GetFiles(pacmanCacheDirectory).Where(file => onlyGetPackages().IsMatch(file)).ToList();
             } else {
                 Console.WriteLine("No packages found in pacman cache");
             }
@@ -76,6 +96,17 @@ public class PacserverUtils {
         }
     }
 
+    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)) {
@@ -85,45 +116,73 @@ public class PacserverUtils {
         }
     }
 
-    public List<String> databases = new List<String>();
+    public void saveDiffToFile(string filePath) {
-    public void checkIfDatabasesWereModified(string mode, string filePath) {
-        string[] databases = Directory.GetFiles(pacmanDatabaseDirectory + "sync/");
-
-        foreach (string database in databases) {
-            switch (mode) {
-                case "before":
-                    writeDatabaseAccessTimeToFile(filePath, database);
-                    break;
-                case "after":
-                    writeDatabaseAccessTimeToFile(filePath, database);
-                    break;
-                default:
-                    throw new ArgumentException("No valid mode was given. Valid modes are before and after");
-            }
-        }
-    }
-
-    public void writeDatabaseAccessTimeToFile(string filePath, string database) {
         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(Regex.Match(database, @"\/(?:[\w.-]+\/)*[\w.-]+(?:\.\w+)*\/*db").Value); // https://regex101.com/r/Wm5M0P/1
+            databasesToTransfer.Add(onlyGetDatabaseName().Match(database).Value);
         }
     }
 
     private static List<String> newerPackagesAndDatabases = new List<String>();
-    public async void transferPacmanCache() {
+    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();
@@ -135,8 +194,4 @@ public class PacserverUtils {
 
         await client.SendAsync(request);
     }
-
-    public void transferPacmanDatabases() {
-
-    }
 }

src/Pacserver/Program.cs

@@ -1,65 +1,51 @@
 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: determinePacmanCacheDirectory, packagesBefore, packagesAfter, diffPackages, databasesBefore, databasesAfter, diffDatabases, filter");
+            Console.WriteLine("Possible options are: before, after");
             return;
         }
 
         PacserverUtils utils = new PacserverUtils();
+        utils.prerequisites();
+        utils.readPacmanConfig();
 
         switch (args[0]) {
-            case "determinePacmanCacheDirectory":
+            case "before":
-                utils.readPacmanConfig();
+                utils.getEveryPackageNameAndVersion("before", utils.pacserverDirectory + "packages_before.txt");
-                Console.WriteLine(utils.pacmanCacheDirectory);
+                utils.checkIfDatabasesWereModified("before", utils.pacserverDirectory + "databases_before.txt");
                 break;
-            case "packagesBefore":
+            case "after":
-                utils.readPacmanConfig();
+                utils.getEveryPackageNameAndVersion("after", utils.pacserverDirectory + "packages_after.txt");
-                utils.getEveryPackageNameAndVersion("before", "/tmp/packages_before.txt");
+                utils.checkIfDatabasesWereModified("after", utils.pacserverDirectory + "databases_after.txt");
-                break;
+
-            case "packagesAfter":
+                utils.diff(utils.pacserverDirectory + "packages_before.txt", utils.pacserverDirectory + "packages_after.txt");
-                utils.readPacmanConfig();
+                utils.saveDiffToFile(utils.pacserverDirectory + "package_diff.txt");
-                utils.getEveryPackageNameAndVersion("after", "/tmp/packages_after.txt");
+
-                break;
+                utils.diff(utils.pacserverDirectory + "databases_before.txt", utils.pacserverDirectory + "databases_after.txt");
-            case "diffPackages":
+                utils.saveDiffToFile(utils.pacserverDirectory + "database_diff.txt");
-                utils.diff("/tmp/packages_before.txt", "/tmp/packages_after.txt");
-                string packages = string.Join("\n", utils.diffOfPackagesOrDatabases);
-                Console.WriteLine(packages);
-                break;
-            case "databasesBefore":
-                utils.readPacmanConfig();
-                utils.checkIfDatabasesWereModified("before", "/tmp/databases_before.txt");
-                break;
-            case "databasesAfter":
-                utils.readPacmanConfig();
-                utils.checkIfDatabasesWereModified("after", "/tmp/databases_after.txt");
-                break;
-            case "diffDatabases":
-                utils.diff("/tmp/databases_before.txt", "/tmp/databases_after.txt");
-                string databases = string.Join("\n", utils.diffOfPackagesOrDatabases);
-                Console.WriteLine(databases);
-                break;
-            case "filter":
-                utils.diff("/tmp/databases_before.txt", "/tmp/databases_after.txt");
                 utils.filterDiffOutputForDatabases();
-                string filteredDatabases = string.Join("\n", utils.databasesToTransfer);
+
-                Console.WriteLine(filteredDatabases);
+                utils.packageNamesAndVersion = utils.readDiffFileToList(utils.pacserverDirectory + "package_diff.txt");
-                break;
+
-            case "getEveryPackageInCache":
+                utils.getEverySigFile();
-                utils.readPacmanConfig();
+                utils.combinePackagesWithDatabases();
-                utils.getEveryPackageNameAndVersion("before", "/tmp/packages_before.txt");
+                utils.transfer();
-                string allPackages = string.Join("\n", utils.packageNamesAndVersion);
+
-                Console.WriteLine(allPackages);
+                utils.cleanup();
                 break;
             default:
                 Console.ForegroundColor = ConsoleColor.Red;
                 Console.WriteLine(args[0] + " is not a recognized option.");
                 Console.ResetColor();
-                Console.WriteLine("Possible options are: determinePacmanCacheDirectory, packagesBefore, packagesAfter, diffPackages, databasesBefore, databasesAfter, diffDatabases, filter");
+                Console.WriteLine("Possible options are: before, after");
                 break;
         }
     }