1 files changed, 64 insertions, 0 deletions

diff --git a/subprojects/generator-cli/src/main/java/tools/refinery/generator/cli/RefineryCli.java b/subprojects/generator-cli/src/main/java/tools/refinery/generator/cli/RefineryCli.java
new file mode 100644
index 00000000..5de579e6
--- /dev/null
+++ b/subprojects/generator-cli/src/main/java/tools/refinery/generator/cli/RefineryCli.java
@@ -0,0 +1,64 @@
+/*
+ * SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.generator.cli;
+
+import com.beust.jcommander.JCommander;
+import com.beust.jcommander.ParameterException;
+import com.google.inject.Inject;
+import tools.refinery.generator.cli.commands.GenerateCommand;
+import tools.refinery.generator.standalone.StandaloneRefinery;
+
+import java.io.IOException;
+
+public class RefineryCli {
+        private static final String GENERATE_COMMAND = "generate";
+
+        @Inject
+        private GenerateCommand generateCommand;
+
+        private JCommander jCommander;
+
+        public String parseArguments(String... args) {
+                var jc = getJCommander();
+                jc.parse(args);
+                return jc.getParsedCommand();
+        }
+
+        public void run(String command) throws IOException {
+                switch (command) {
+                case GENERATE_COMMAND -> generateCommand.run();
+                case null, default -> showUsageAndExit();
+                }
+        }
+
+        public void showUsageAndExit() {
+                getJCommander().usage();
+                System.exit(1);
+        }
+
+        private JCommander getJCommander() {
+                if (jCommander == null) {
+                        jCommander = JCommander.newBuilder()
+                                        .programName("refinery")
+                                        .addObject(this)
+                                        .addCommand(GENERATE_COMMAND, generateCommand)
+                                        .build();
+                }
+                return jCommander;
+        }
+
+        public static void main(String[] args) throws IOException {
+                var cli = StandaloneRefinery.getInjector().getInstance(RefineryCli.class);
+                String command = null;
+                try {
+                        command = cli.parseArguments(args);
+                } catch (ParameterException e) {
+                        System.err.println(e.getMessage());
+                        cli.showUsageAndExit();
+                }
+                cli.run(command);
+        }
+}