VersionCommand.java

package io.github.randomcodespace.iq.cli;

import io.github.randomcodespace.iq.detector.DetectorRegistry;
import org.springframework.boot.info.BuildProperties;
import org.springframework.stereotype.Component;
import picocli.CommandLine.Command;

import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.Callable;

/**
 * Show version and environment info.
 */
@Component
@Command(name = "version", mixinStandardHelpOptions = true,
        description = "Show version info")
public class VersionCommand implements Callable<Integer> {

    /** Fallback version used when BuildProperties is unavailable (e.g. running from IDE). */
    public static final String VERSION = resolveVersion();

    private final DetectorRegistry registry;
    private final BuildProperties buildProperties;

    public VersionCommand(DetectorRegistry registry,
                          @org.springframework.lang.Nullable BuildProperties buildProperties) {
        this.registry = registry;
        this.buildProperties = buildProperties;
    }

    private static String resolveVersion() {
        // Try reading from build-info.properties on the classpath (generated by spring-boot-maven-plugin)
        try (var is = VersionCommand.class.getResourceAsStream("/META-INF/build-info.properties")) {
            if (is != null) {
                var props = new java.util.Properties();
                props.load(is);
                String v = props.getProperty("build.version");
                if (v != null && !v.isBlank()) return v;
            }
        } catch (java.io.IOException ignored) {
            // build-info.properties is optional; fall through to manifest lookup.
        }
        // Fallback: Implementation-Version from JAR manifest
        String v = VersionCommand.class.getPackage().getImplementationVersion();
        return v != null ? v : "dev";
    }

    @Override
    public Integer call() {
        // Prefer Spring BuildProperties (populated at runtime) over static resolution
        String version = buildProperties != null
                ? buildProperties.getVersion()
                : VERSION;

        Set<String> allLanguages = new TreeSet<>();
        for (var d : registry.allDetectors()) {
            allLanguages.addAll(d.getSupportedLanguages());
        }

        CliOutput.bold("Code IQ " + version);
        CliOutput.info("  Java:       " + System.getProperty("java.version")
                + " (" + System.getProperty("java.vendor") + ")");
        CliOutput.info("  Runtime:    " + System.getProperty("java.runtime.name"));
        CliOutput.info("  OS:         " + System.getProperty("os.name")
                + " " + System.getProperty("os.arch"));
        CliOutput.info("  Detectors:  " + registry.count());
        CliOutput.info("  Languages:  " + allLanguages.size());
        CliOutput.info("  Backend:    Neo4j Embedded");

        return 0;
    }
}