shell - trying to fallback to ivy dependency resolution from pom.xml …

…if we detect mvn is not installed on current machine

restx-core-shell/src/main/java/restx/core/shell/DepsShellCommand.java

@@ -37,6 +37,8 @@
 */
@Component
public class DepsShellCommand extends StdShellCommand {
    private static final String MVN_COMMAND = "mvn";

    public DepsShellCommand() {
        super(ImmutableList.of("deps"), "deps related commands: install / update / manage app dependencies");
    }
@@ -154,16 +156,25 @@ public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOEx

            // Then copying dependencies through copy-dependencies plugin
            ProcessBuilder mavenCmd = new ProcessBuilder(
                    "mvn", "org.apache.maven.plugins:maven-dependency-plugin:3.0.1:copy-dependencies",
                    MVN_COMMAND, "org.apache.maven.plugins:maven-dependency-plugin:3.0.1:copy-dependencies",
                    "-DoutputDirectory=" + dependenciesDir.toAbsolutePath(), "-DincludeScope=runtime"
            );

            shell.println("Executing `"+mavenCmd+"` ...");
            mavenCmd.redirectErrorStream(true)
             .redirectOutput(ProcessBuilder.Redirect.INHERIT)
             .directory(shell.currentLocation().toFile().getAbsoluteFile())
             .start()
             .waitFor();
            try {
                mavenCmd.redirectErrorStream(true)
                        .redirectOutput(ProcessBuilder.Redirect.INHERIT)
                        .directory(shell.currentLocation().toFile().getAbsoluteFile())
                        .start()
                        .waitFor();
            } catch(IOException e) {
                if(e.getMessage().startsWith(String.format("Cannot run program \"%s\"", MVN_COMMAND))) {
                    shell.println("Looks like mvn is not installed here ... trying to fallback installing pom.xml file with Ivy...");
                    installDepsFromIvyDescriptor(shell, pomFile);
                } else {
                    Throwables.propagate(e);
                }
            }
        }

        private static void storeModuleDescriptorMD5File(RestxShell shell, ModuleDescriptorType mdType) throws IOException {