Run from docker

Dockerfile

@@ -0,0 +1,25 @@
+FROM mcr.microsoft.com/dotnet/sdk:7.0-alpine as BUILD
+
+RUN apk add -U bash build-base clang icu-libs krb5-libs libgcc libintl libssl1.1 libstdc++ zlib-dev
+WORKDIR /build
+COPY . .
+
+RUN dotnet publish src/Alma/Alma.csproj -c Release -r linux-musl-x64 -p:PublishAot=true -o /app
+
+FROM alpine:edge as FINAL
+
+RUN mkdir /data
+WORKDIR /data
+
+ENV ALMA_APP_DATA_FALLBACK=/appdata
+ENV ALMA_CONFIG_FALLBACK=/appconfig
+
+RUN mkdir /appdata
+RUN mkdir /appconfig
+
+RUN apk add -U icu-libs libstdc++
+
+COPY --from=BUILD /app/Alma /alma
+
+ENTRYPOINT ["/alma"]
+CMD ["help"]

src/Alma.App/Command/Diag/DiagCommand.cs

@@ -0,0 +1,116 @@
+using System.Reflection;
+using Alma.Logging;
+
+namespace Alma.Command.Diag;
+
+public class DiagCommand : ICommand
+{
+    private readonly ILogger<DiagCommand> _logger;
+    public string CommandString => "diag";
+    private readonly Lazy<IReadOnlyList<MethodInfo>> _diagnosticHelpersLazy;
+
+    public DiagCommand(ILogger<DiagCommand> logger)
+    {
+        _logger = logger;
+        _diagnosticHelpersLazy = new Lazy<IReadOnlyList<MethodInfo>>(FindDiagnosticHelpers);
+    }
+
+    public Task Run(List<string> parameters)
+    {
+        if (parameters.Count < 1)
+        {
+            _logger.LogInformation("No diagnostic helper specified.");
+            return Task.CompletedTask;
+        }
+
+        var command = parameters[0];
+
+        if (command == "list")
+        {
+            ListDiagnosticHelpers();
+            return Task.CompletedTask;
+        }
+
+        var diagnosticHelpers = _diagnosticHelpersLazy.Value;
+
+        var helper = diagnosticHelpers.FirstOrDefault(
+            h => GetDiagnosticHelper(h) is { } attr && attr.Command == command
+        );
+
+        if (helper is null)
+        {
+            _logger.LogInformation($"Diagnostic helper {command} is not found.");
+            return Task.CompletedTask;
+        }
+
+        if (!helper.IsStatic)
+        {
+            _logger.LogInformation($"Diagnostic helper {helper.Name} is not static.");
+            return Task.CompletedTask;
+        }
+
+        HandleHelper(helper, parameters.Skip(1));
+
+        return Task.CompletedTask;
+    }
+
+    private void ListDiagnosticHelpers()
+    {
+        var diagnosticHelpers = _diagnosticHelpersLazy.Value;
+        var commands = diagnosticHelpers
+            .Select(h => GetDiagnosticHelper(h)?.Command)
+            .OfType<string>()
+            .ToList();
+
+        _logger.LogInformation("Available diagnostic helpers:");
+        foreach (var command in commands)
+        {
+            _logger.LogInformation(command);
+        }
+    }
+
+    private void HandleHelper(MethodInfo helper, IEnumerable<string> parameters)
+    {
+        var helperParameters = helper.GetParameters();
+        var helperArguments = new object[helperParameters.Length];
+        for (var i = 0; i < helperParameters.Length; i++)
+        {
+            var parameterType = helperParameters[i].ParameterType;
+            if (parameterType == typeof(IEnumerable<string>))
+            {
+                helperArguments[i] = parameters;
+            }
+            else if (parameterType == typeof(ILogger))
+            {
+                helperArguments[i] = _logger;
+            }
+            else
+            {
+                _logger.LogInformation($"Diagnostic helper {helper.Name} has wrong parameter type, could not resolve '{parameterType}'.");
+                return;
+            }
+        }
+        
+        helper.Invoke(null, helperArguments);
+    }
+
+    private IReadOnlyList<MethodInfo> FindDiagnosticHelpers()
+    {
+        var assemblies = new[]
+        {
+            Assembly.GetExecutingAssembly(),
+        };
+
+        return assemblies.SelectMany(
+                a =>
+                    a
+                        .GetTypes()
+                        .SelectMany(t => t.GetMethods())
+                        .Where(t => t.GetCustomAttributes(typeof(DiagnosticHelper)).Any()))
+            .ToList()
+            .AsReadOnly();
+    }
+
+    private DiagnosticHelper? GetDiagnosticHelper(MethodInfo o)
+        => o.GetCustomAttributes(typeof(DiagnosticHelper)).FirstOrDefault() as DiagnosticHelper;
+}

src/Alma.App/Command/Diag/DiagnosticHelper.cs

@@ -0,0 +1,12 @@
+namespace Alma.Command.Diag;
+
+[AttributeUsage(AttributeTargets.Method)]
+public class DiagnosticHelper : Attribute
+{
+    public string Command { get; }
+
+    public DiagnosticHelper(string command)
+    {
+        Command = command;
+    }
+}

src/Alma.App/Services/FolderService.cs

@@ -1,47 +1,70 @@
+using System.Diagnostics.CodeAnalysis;
+using Alma.Command.Diag;
+using Alma.Logging;
+
 namespace Alma.Services;
 
 public class FolderService : IFolderService
 {
+    private readonly Dictionary<string, Func<string?>> _configHomeProviders;
+    private readonly Dictionary<string, Func<string?>> _appDataProviders;
     public string? ConfigRoot { get; }
     public string AppData { get; }
 
     public string ApplicationSubfolderName => "alma";
 
+    [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(FolderService))]
     public FolderService()
     {
+        _configHomeProviders = ConfigHomeProviders();
+        _appDataProviders = AppDataProviders();
+
         ConfigRoot = GetConfigHomePath();
         AppData = GetAppDataPath();
 
         if (!Directory.Exists(AppData)) Directory.CreateDirectory(AppData);
     }
 
-    public string GetPreferredConfigurationFolder()
+    private static Dictionary<string, Func<string?>> ConfigHomeProviders()
+    {
+        return new Dictionary<string, Func<string?>>
+        {
+            {"ALMA_CONFIG", () => Environment.GetEnvironmentVariable("ALMA_CONFIG")},
+            {"XDG_CONFIG_HOME", () => Environment.GetEnvironmentVariable("XDG_CONFIG_HOME")},
+            {"UserProfile", GetPreferredConfigurationFolder},
+            {"ALMA_CONFIG_FALLBACK", () => Environment.GetEnvironmentVariable("ALMA_CONFIG_FALLBACK")},
+        };
+    }
+
+    private static Dictionary<string, Func<string?>> AppDataProviders()
+    {
+        return new Dictionary<string, Func<string?>>
+        {
+            {"ALMA_APP_DATA", () => Environment.GetEnvironmentVariable("ALMA_APP_DATA")},
+            {"LocalApplicationData", () => Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)},
+            {"ALMA_APP_DATA_FALLBACK", () => Environment.GetEnvironmentVariable("ALMA_APP_DATA_FALLBACK")},
+        };
+    }
+
+    string IFolderService.GetPreferredConfigurationFolder()
+        => GetPreferredConfigurationFolder();
+
+    public static string GetPreferredConfigurationFolder()
         => Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".config");
 
     private string? GetConfigHomePath()
     {
-        var configHomeProviders = new List<Func<string?>>
+        var configHome = EnumerateProviders(_configHomeProviders.Values);
-        {
-            () => Environment.GetEnvironmentVariable("XDG_CONFIG_HOME"),
-            () => GetPreferredConfigurationFolder()
-        };
-
-        var configHome = EnumerateProviders(configHomeProviders);
         return configHome == null ? null : Path.Combine(configHome, ApplicationSubfolderName);
     }
 
     private string GetAppDataPath()
     {
-        var appDataProviders = new List<Func<string?>>
+        var appData = EnumerateProviders(_appDataProviders.Values) ?? Environment.CurrentDirectory;
-        {
-            () => Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)
-        };
-
-        var appData = EnumerateProviders(appDataProviders) ?? Environment.CurrentDirectory;
         return Path.Combine(appData, ApplicationSubfolderName);
     }
 
-    private static string? EnumerateProviders(List<Func<string?>> providers)
+    private static string? EnumerateProviders(IEnumerable<Func<string?>> providers)
     {
         string? result = null;
 
@@ -53,4 +76,26 @@ public class FolderService : IFolderService
 
         return result;
     }
+
+    [DiagnosticHelper("config-home-providers")]
+    public static void ConfigHomeProviderDiag(ILogger logger)
+    {
+        var configHomeProviders = ConfigHomeProviders();
+        logger.LogInformation($"There are {configHomeProviders.Count} config home providers:");
+        foreach (var configHome in configHomeProviders)
+        {
+            logger.LogInformation($"{configHome.Key} => {configHome.Value() ?? "<null>"}");
+        }
+    }
+
+    [DiagnosticHelper("app-data-providers")]
+    public static void AppDataProviderDiag(ILogger logger)
+    {
+        var appDataProviders = AppDataProviders();
+        logger.LogInformation($"There are {appDataProviders.Count} app data providers:");
+        foreach (var appData in appDataProviders)
+        {
+            logger.LogInformation($"{appData.Key} => {appData.Value() ?? "<null>"}");
+        }
+    }
 }

src/Alma.App/Services/PathHelperService.cs

@@ -1,4 +1,7 @@
-using Alma.Data;
+using System.Diagnostics.CodeAnalysis;
+using Alma.Command.Diag;
+using Alma.Data;
+using Alma.Logging;
 
 namespace Alma.Services;
 
@@ -10,6 +13,7 @@ public class PathHelperService : IPathHelperService
         new("%DOCUMENTS%", () => Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments)),
     };
 
+    [DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(PathHelperService))]
     public string ResolvePath(string path, string? currentDirectory = null)
     {
         var skipCombiningCurrentDirectory = false;
@@ -30,4 +34,14 @@ public class PathHelperService : IPathHelperService
             ? path
             : Path.Combine(currentDirectory, path);
     }
+
+    [DiagnosticHelper("special-path-resolver")]
+    public static void SpecialPathResolverDiag(ILogger logger)
+    {
+        logger.LogInformation($"There are {_specialPathResolvers.Count} special path resolvers:");
+        foreach (var specialPathResolver in _specialPathResolvers)
+        {
+            logger.LogInformation($"{specialPathResolver.PathName} => {specialPathResolver.Resolver()}");
+        }
+    }
 }

src/Alma.Logging/ILogger.cs

@@ -1,6 +1,6 @@
 namespace Alma.Logging;
 
-public interface ILogger<T>
+public interface ILogger
 {
     LogLevel DefaultLogLevel { get; }
     void LogInformation(string logMessage);
@@ -10,3 +10,8 @@ public interface ILogger<T>
     void LogError(string logMessage);
     void LogCritical(string logMessage);
 }
+
+public interface ILogger<T> : ILogger
+{
+    
+}

src/Alma.Logging/ILoggerFactory.cs

@@ -3,5 +3,6 @@
 public interface ILoggerFactory
 {
     ILogger<T> CreateLogger<T>();
+    ILogger CreateLogger(Type t);
     LogLevel DefaultLogLevel { get; }
 }

src/Alma.Logging/Logger.cs

@@ -1,10 +1,11 @@
 namespace Alma.Logging;
 
-public class Logger<T> : ILogger<T>
+
+public class Logger : ILogger
 {
     public LogLevel DefaultLogLevel { get; }
 
-    public Logger(LogLevel defaultLogLevel)
+    public Logger(LogLevel defaultLogLevel, string topicName)
     {
         DefaultLogLevel = defaultLogLevel;
     }
@@ -33,3 +34,11 @@ public class Logger<T> : ILogger<T>
         Log(logMessage, LogLevel.Critical);
     }
 }
+
+public class Logger<T> : Logger, ILogger<T>
+{
+    public Logger(LogLevel defaultLogLevel) : base(defaultLogLevel, typeof(T).Name)
+    {
+        
+    }
+}

src/Alma.Logging/LoggerFactory.cs

@@ -13,4 +13,9 @@ public class LoggerFactory : ILoggerFactory
     {
         return new Logger<T>(DefaultLogLevel);
     }
+
+    public ILogger CreateLogger(Type t)
+    {
+        return new Logger(DefaultLogLevel, t.Name);
+    }
 }

src/Alma/Program.cs

@@ -1,5 +1,8 @@
-using Alma.Command;
+using System.IO;
+using System;
+using Alma.Command;
 using Alma.Command.Configure;
+using Alma.Command.Diag;
 using Alma.Command.Help;
 using Alma.Command.Info;
 using Alma.Command.Install;
@@ -19,6 +22,14 @@ public static class Program
     {
         InitLogging();
 
+        var logger = AlmaLoggerFactory.CreateLogger(typeof(Program));
+
+        var workdir = GetWorkdir(logger);
+        if (workdir != null)
+        {
+            Environment.CurrentDirectory = workdir;
+        }
+
         var services = new AlmaServiceProvider();
 
         var repositoryConfiguration = services.GetService<IRepositoryConfiguration>();
@@ -28,6 +39,33 @@ public static class Program
         await application.Run(args);
     }
 
+    private static string? GetWorkdir(ILogger logger)
+    {
+        var workdirProviders = new Dictionary<string, Func<string?>>
+        {
+            {"ALMA_WORKDIR", () => Environment.GetEnvironmentVariable("ALMA_WORKDIR")},
+            {"WORKDIR", () => Environment.GetEnvironmentVariable("WORKDIR")},
+        };
+
+        foreach (var workdirProvider in workdirProviders)
+        {
+            var workdir = workdirProvider.Value();
+            if (workdir != null)
+            {
+                if (Directory.Exists(workdir))
+                {
+                    return workdir;
+                }
+                else
+                {
+                    logger.LogInformation($"{workdirProvider.Key} is set to {workdir} but this directory does not exist.");
+                }
+            }
+        }
+
+        return null;
+    }
+
     private static void InitLogging()
     {
         AlmaLoggerFactory = new LoggerFactory();
@@ -49,6 +87,7 @@ public static class Program
 [Singleton(typeof(ICommand), typeof(InstallCommand))]
 [Singleton(typeof(ICommand), typeof(HelpCommand))]
 [Singleton(typeof(ICommand), typeof(ConfigureCommand))]
+[Singleton(typeof(ICommand), typeof(DiagCommand))]
 [Singleton(typeof(IModuleConfigurationResolver), typeof(ModuleConfigurationResolver))]
 [Singleton(typeof(IMetadataHandler), typeof(MetadataHandler))]
 [Singleton(typeof(IShellService), typeof(ShellService))]