1: Create CLI options' scaffolding

src/main/java/com/bartek/esa/EsaMain.java

@@ -1,8 +1,25 @@
 package com.bartek.esa;
 
+import com.bartek.esa.cli.parser.CliArgsParser;
+import com.bartek.esa.di.DaggerDependencyInjector;
+
+import javax.inject.Inject;
+
 public class EsaMain {
+    private final CliArgsParser cliArgsParser;
+
+    @Inject
+    EsaMain(CliArgsParser cliArgsParser) {
+        this.cliArgsParser = cliArgsParser;
+    }
+
+    private void run(String[] args) {
+        // cliArgsParser.parse(...)
+    }
 
     public static void main(String[] args) {
-        System.out.println("Hello, world!");
+        DaggerDependencyInjector.create()
+                .esa()
+                .run(args);
     }
 }

src/main/java/com/bartek/esa/cli/di/CliModule.java

@@ -0,0 +1,14 @@
+package com.bartek.esa.cli.di;
+
+import com.bartek.esa.cli.parser.CliArgsParser;
+import dagger.Module;
+import dagger.Provides;
+
+@Module
+public class CliModule {
+
+    @Provides
+    CliArgsParser cliArgsParser() {
+        return new CliArgsParser();
+    }
+}

src/main/java/com/bartek/esa/cli/model/CliArgsActions.java

@@ -0,0 +1,9 @@
+package com.bartek.esa.cli.model;
+
+import lombok.Builder;
+import lombok.Data;
+
+@Data
+@Builder
+public class CliArgsActions {
+}

src/main/java/com/bartek/esa/cli/parser/CliArgsParser.java

@@ -0,0 +1,15 @@
+package com.bartek.esa.cli.parser;
+
+import com.bartek.esa.cli.model.CliArgsActions;
+
+import javax.inject.Inject;
+
+public class CliArgsParser {
+
+    @Inject
+    public CliArgsParser() {}
+
+    public void parse(String[] args, CliArgsActions actions) {
+
+    }
+}

src/main/java/com/bartek/esa/di/DependencyInjector.java

@@ -0,0 +1,12 @@
+package com.bartek.esa.di;
+
+import com.bartek.esa.EsaMain;
+import com.bartek.esa.cli.di.CliModule;
+import dagger.Component;
+
+@Component(modules = {
+        CliModule.class
+})
+public interface DependencyInjector {
+    EsaMain esa();
+}