feat: init commit

src/main/java/me/hatter/demo/PicocliCli.java

@@ -0,0 +1,38 @@
+package me.hatter.demo;
+
+import picocli.CommandLine;
+import picocli.CommandLine.Command;
+import picocli.CommandLine.Option;
+import picocli.CommandLine.Parameters;
+import java.io.File;
+
+@Command(name = "example",
+        mixinStandardHelpOptions = true,
+        version = "Picocli example 1.0")
+public class PicocliCli {
+
+    @Option(names = {"-v", "--verbose"},
+            description = "Verbose mode. Helpful for troubleshooting. Multiple -v options increase the verbosity.")
+    private boolean[] verbose = new boolean[0];
+
+    @Parameters(arity = "1..*", paramLabel = "FILE", description = "File(s) to process.")
+    private File[] inputFiles;
+
+    public void run() {
+        if (verbose.length > 0) {
+            System.out.println(inputFiles.length + " files to process...");
+        }
+        if (verbose.length > 1) {
+            for (File f : inputFiles) {
+                System.out.println(f.getAbsolutePath());
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        // By implementing Runnable or Callable, parsing, error handling and handling user
+        // requests for usage help or version help can be done with one line of code.
+        int exitCode = new CommandLine(new PicocliCli()).execute(args);
+        System.exit(exitCode);
+    }
+}