Hopeless-cloud/update-csharp
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base: Hopeless-cloud:58ae26b4f770230bc8f1791f1b2ccec19165f0fb
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Hopeless-cloud:dev
Hopeless-cloud:rewrite
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compare: Hopeless-cloud:9c05f3ac838af0bc2e07d578cbe87b9b22fd4d33
Branches Tags
Hopeless-cloud:rewrite
Hopeless-cloud:dev

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5 changed files with 24 additions and 346 deletions
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3
.gitignore vendored
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@ -1,4 +1,3 @@
.vscode/
obj/
bin/
justdoit.sh
bin/

75
Program.cs
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@ -1,57 +1,22 @@
public class Program {
static void Main(string[] args) {
using System.Diagnostics;
string beforeUpdate() {
Update.copyEverthingBeforeUpdateToBackupLocation();
Update.zipAllContentInBackupLocation("pre-backup.zip");
Update.zipPacmanDatabase();
Console.ForegroundColor = ConsoleColor.Green;
return "pre-backup complete";
}
string postUpdate() {
Update.copyEverthingAfterUpdateToBackupLocation();
Update.zipAllContentInBackupLocation("post-backup.zip");
Update.copyEverthingFromBackupLocationToFinalDestination(args[0]);
Console.ForegroundColor = ConsoleColor.Green;
return "post-backup complete";
}
string testPacmanDatabase() {
Update.zipPacmanDatabase();
Console.ForegroundColor = ConsoleColor.Yellow;
return "Test complete";
}
// Use https://learn.microsoft.com/en-us/dotnet/api/system.io.filesystemwatcher?redirectedfrom=MSDN&view=net-7.0
try {
switch(args[1]) {
case "pre-backup":
beforeUpdate();
Console.ResetColor();
break;
case "post-backup":
postUpdate();
Console.ResetColor();
break;
case "testPacmanDatabase":
testPacmanDatabase();
Console.ResetColor();
break;
default:
Console.WriteLine("Wait! How did you do that?");
break;
}
} catch (Exception e) {
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(e.Message);
}
string homePath;
if(Environment.OSVersion.Platform == PlatformID.Unix) {
homePath = Environment.GetEnvironmentVariable("HOME");
} else {
Console.WriteLine("This script doesn't support your operating system.");
}
}
Process process = new Process();
ProcessStartInfo processStartInfo = new ProcessStartInfo();
//processStartInfo.WindowStyle = ProcessWindowStyle.Hidden;
processStartInfo.FileName = @"yay";
//processStartInfo.WorkingDirectory = homePath;
//processStartInfo.Arguments = "--color";
processStartInfo.RedirectStandardOutput = false;
processStartInfo.RedirectStandardError = false;
processStartInfo.UseShellExecute = true;
process.StartInfo = processStartInfo;
process.Start();

17
README.md
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@ -1,8 +1,6 @@
# update-c#
A rewrite of the legendary update script in C#
This time with file handling entirely in C# while keeping all scripting parts in bash.
## Authors
- [@ProfessionalUwU](http://192.168.0.69:3000/ProfessionalUwU)
@ -48,20 +46,11 @@ Run executable
```bash
./update
```
## Roadmap/ToDo
## Roadmap
- Figure out how to do options/arguments
- Backup all necessary files
- Hopefully shrink size of the executable
- Potentially speed up file handling
- Color output according to state (success = green, failure = red, info = yellow)
- Option to change backup location (instead of home)
- Keep backups for a configurable amount of days
## Sites I used to help make this project
- [dotnetperls](https://dotnetperls.com)
- [stackoverflow](https://stackoverflow.com/questions/tagged/c%23)
- [c-sharpcorner](https://www.c-sharpcorner.com)
- Backup important files
- Figure out how to make a single executable
## Contributing
Contributions are always welcome!

271
Update.cs
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@ -1,271 +0,0 @@
using System.Diagnostics;
using System.IO.Compression;
public class Update {
public static string getHomePath() {
string homePath = string.Empty;
if (Environment.OSVersion.Platform == PlatformID.Unix) {
homePath = Environment.GetEnvironmentVariable("HOME");
return homePath;
} else {
throw new ApplicationException("This script doesn't support your operating system.");
}
}
public static string copyEverthingBeforeUpdateToBackupLocation() {
string targetPath = "/tmp/backup/uncompressed/";
if (File.Exists(targetPath + "pacman-after.txt") && File.Exists(targetPath + "flatpak-after.txt")) {
File.Delete(targetPath + "pacman-after.txt");
File.Delete(targetPath + "flatpak-after.txt");
}
string[] systemFilesToCopy = {"/etc/fstab", "/etc/makepkg.conf"};
List<string> filesToCopy = new List<string>(systemFilesToCopy);
string pacmanPackageListBeforeUpdate = targetPath + "pacman-pre.txt";
filesToCopy.Add(pacmanPackageListBeforeUpdate);
string flatpakListBeforeUpdate = targetPath+ "flatpak-pre.txt";
filesToCopy.Add(flatpakListBeforeUpdate);
if (!Directory.Exists(targetPath)) {
Directory.CreateDirectory(targetPath);
copyEverthingBeforeUpdateToBackupLocation();
} else {
foreach (string file in filesToCopy) {
FileInfo info = new FileInfo(file);
string destFile = Path.Combine(targetPath, info.Name);
File.Copy(info.FullName, destFile, true);
}
}
string copiedFiles = string.Join(", ", filesToCopy);
Console.ForegroundColor = ConsoleColor.Green;
return $"Copied {copiedFiles} to {targetPath}";
}
public static string copyEverthingAfterUpdateToBackupLocation() {
string targetPath = "/tmp/backup/uncompressed/"; // Use /tmp to zip and then move into /backup/compressed/
if (File.Exists(targetPath + "pacman-pre.txt") && File.Exists(targetPath + "flatpak-pre.txt")) {
File.Delete(targetPath + "pacman-pre.txt");
File.Delete(targetPath + "flatpak-pre.txt");
File.Delete(targetPath + "fstab");
File.Delete(targetPath + "makepkg.conf");
}
List<string> filesToCopy = new List<string>();
string pacmanPackageListBeforeUpdate = targetPath + "pacman-after.txt";
filesToCopy.Add(pacmanPackageListBeforeUpdate);
string flatpakListBeforeUpdate = targetPath + "flatpak-after.txt";
filesToCopy.Add(flatpakListBeforeUpdate);
if (!Directory.Exists(targetPath)) {
Directory.CreateDirectory(targetPath);
copyEverthingAfterUpdateToBackupLocation();
} else {
foreach (string file in filesToCopy) {
FileInfo info = new FileInfo(file);
string destFile = Path.Combine(targetPath, info.Name);
File.Copy(info.FullName, destFile, true);
}
}
string copiedFiles = string.Join(", ", filesToCopy);
Console.ForegroundColor = ConsoleColor.Green;
return $"Copied {copiedFiles} to {targetPath}";
}
/// <summary>
/// Method <c>copyEverthingFromBackupLocationToFinalDestination</c> copies everything to second Backup Location which should be a external drive or a network share. Offsite/Second Backup.
/// </summary>
public static string copyEverthingFromBackupLocationToFinalDestination(string finalBackupLocation) {
string targetPath = finalBackupLocation;
if (!Directory.Exists(targetPath)) {
Console.ForegroundColor = ConsoleColor.Red;
return $"Backup location does not exist! Please specify one in the config.";
}
if (targetPath is not null) {
string sourcePath = getHomePath() + "/backup/compressed/";
string[] intermediateBackupLocation = Directory.GetFiles(sourcePath);
if (!Directory.Exists(targetPath)) {
throw new DirectoryNotFoundException("Target directory not found");
} else {
foreach (string file in intermediateBackupLocation) {
FileInfo info = new FileInfo(file);
string destFile = Path.Combine(targetPath, info.Name);
File.Copy(info.FullName, destFile, true);
}
}
Console.ForegroundColor = ConsoleColor.Green;
return $"Copied everything successfully to {targetPath}";
} else {
Console.ForegroundColor = ConsoleColor.Red;
return "You have not configured a backup location!";
}
}
public static bool zipAllContentInBackupLocation(string finalZipName) {
string targetPath = getHomePath() + "/backup/compressed/";
if (!Directory.Exists(targetPath)) {
Directory.CreateDirectory(targetPath);
}
string sourcePath = "/tmp/backup/uncompressed/";
string targetZip = getHomePath() + "/backup/compressed/" + finalZipName;
if (!Directory.Exists("/tmp/backup/")) {
Directory.CreateDirectory("/tmp/backup/");
}
string newFinalZip = "/tmp/backup/" + finalZipName;
File.Delete(newFinalZip); // Delete residual zip's in tmp
ZipFile.CreateFromDirectory(sourcePath, newFinalZip);
if (File.Exists(targetZip)) {
if (!checkForIdenticalFile(targetZip, newFinalZip)) {
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine($"{finalZipName} is outdated");
File.Delete(targetZip);
if (File.Exists(newFinalZip)) {
File.Delete(newFinalZip);
zipAllContentInBackupLocation(finalZipName);
} else {
File.Move(newFinalZip, targetZip);
}
} else {
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine($"{finalZipName} is up to date");
}
} else {
ZipFile.CreateFromDirectory(sourcePath, targetZip);
}
if (File.Exists(targetZip)) {
return true;
} else {
return false;
}
}
public static bool zipPacmanDatabase() {
string pacmanDatabaseLocation = "/var/lib/pacman/local/";
string oldPacmanDatabaseZip = getHomePath() + "/backup/compressed/pacman-database.zip";
string newPacmanDatabaseZip = "/tmp/backup/compressed/pacman-database.zip";
if (!Directory.Exists("/tmp/backup/compressed/")) {
Directory.CreateDirectory("/tmp/backup/compressed/");
}
try {
if(checkForLckFile("/var/lib/pacman/") == false) { // Only creates the zip if the db.lck doesn't exist
makeDatabaseLock();
if (File.Exists(newPacmanDatabaseZip)) { // Delete residual pacman database in tmp
File.Delete(newPacmanDatabaseZip);
deleteDatabaseLock(); // Delete previous created database lock
} else {
ZipFile.CreateFromDirectory(pacmanDatabaseLocation, newPacmanDatabaseZip); // If no zip exists create one
}
if (File.Exists(oldPacmanDatabaseZip)) {
if (!checkForIdenticalFile(oldPacmanDatabaseZip, newPacmanDatabaseZip)) {
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Pacman Database is outdated");
File.Delete(oldPacmanDatabaseZip);
File.Move(newPacmanDatabaseZip, oldPacmanDatabaseZip);
} else {
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Pacman Database is up to date");
File.Delete(newPacmanDatabaseZip);
}
} else {
if (!File.Exists(newPacmanDatabaseZip)) {
ZipFile.CreateFromDirectory(pacmanDatabaseLocation, newPacmanDatabaseZip); // Create the zip in tmp
}
File.Move(newPacmanDatabaseZip, oldPacmanDatabaseZip);
}
} else {
throw new ApplicationException("db.lck exists. Please try again later.");
}
} catch (Exception e) {
//deleteDatabaseLock(); // Bad practice. Only for debug purpose!
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(e.Message);
}
if (File.Exists(oldPacmanDatabaseZip)) {
deleteDatabaseLock();
return true;
} else {
return false;
}
}
private static bool checkForIdenticalFile(string existingFilePath, string newFilePath) {
byte[] existingFile = File.ReadAllBytes(existingFilePath);
byte[] newFile = File.ReadAllBytes(newFilePath);
if (existingFile.Length == newFile.Length) {
for (int i=0; i < existingFile.Length; i++) {
if (existingFile[i] != newFile[i]) {
return false;
}
}
return true;
}
return false;
}
private static bool checkForLckFile(string folderToCheck) {
if (Directory.GetFiles(folderToCheck, "*.lck").Length == 1) {
return true; // lck file exists
} else {
return false; // lck file doesn't exists
}
}
private static void makeDatabaseLock() {
var psi = new ProcessStartInfo
{
FileName = "/bin/bash",
UseShellExecute = false,
RedirectStandardOutput = true,
Arguments = string.Format("-c \"cd /var/lib/pacman/ && sudo touch db.lck && sudo chmod 000 db.lck\"")
};
using (var p = Process.Start(psi))
{
if (p != null)
{
var strOutput = p.StandardOutput.ReadToEnd();
p.WaitForExit();
}
}
}
private static void deleteDatabaseLock() {
var psi = new ProcessStartInfo
{
FileName = "/bin/bash",
UseShellExecute = false,
RedirectStandardOutput = true,
Arguments = string.Format("-c \"cd /var/lib/pacman/ && sudo rm -f db.lck\"")
};
using (var p = Process.Start(psi))
{
if (p != null)
{
var strOutput = p.StandardOutput.ReadToEnd();
p.WaitForExit();
}
}
}
}

4
update.csproj
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@ -10,9 +10,5 @@
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<Reference Include="System.IO.Compression" />
<Reference Include="System.IO.Compression.ZipFile" />
</ItemGroup>
</Project>