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package org.glavo.javah;
import picocli.CommandLine;
import java.io.File;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.List;
import java.util.jar.Manifest;
import java.util.stream.Stream;
import static picocli.CommandLine.*;
@Command(name = "gjavah", version = "gjavah ${gjavah.version}", sortOptions = false)
public class Main {
@Option(names = {"-p", "--module-path"}, description = "Path from which to search modules")
private String modulePath;
@Option(names = {"-cp", "-classpath", "--classpath", "--class-path"}, description = "Path from which to search classes")
private String classpath;
@Option(names = {"-version", "--version"}, description = "Print version information")
private boolean showVersion;
@Option(names = {"-h", "--help", "-?"}, usageHelp = true, description = "Print this message")
private boolean showHelp;
@Option(names = {"-d"}, description = "Output directory")
private Path outputDir = Paths.get("").toAbsolutePath().normalize();
@Parameters(paramLabel = "classes")
private List<String> classes;
public static void main(String[] args) throws Exception {
Main m = new Main();
CommandLine cm = new CommandLine(m);
if (args == null || args.length == 0) {
cm.usage(System.err);
System.exit(-1);
}
cm.parseArgs(args);
if (m.showHelp) {
cm.usage(System.out);
return;
}
if (m.showVersion) {
try (InputStream in = Main.class.getResourceAsStream("/META-INF/MANIFEST.MF")) {
System.setProperty("gjavah.version", new Manifest(in).getMainAttributes().getValue("GJavah-Version"));
cm.printVersionHelp(System.out);
}
return;
}
if (m.classes == null || m.classes.isEmpty()) {
cm.usage(System.err);
System.exit(-1);
}
JavahTask task = new JavahTask();
if (m.modulePath != null) {
Arrays.stream(m.modulePath.split(File.pathSeparator))
.map(Paths::get)
.filter(Files::isDirectory)
.forEachOrdered(task::addModulePath);
}
if (m.classpath == null) {
m.classpath = System.getenv("CLASSPATH");
}
if (m.classpath == null) {
m.classpath = Paths.get("").toAbsolutePath().normalize().toString();
}
Arrays.stream(m.classpath.split(File.pathSeparator))
.flatMap(p -> {
if (p.endsWith("/*") || p.equals("*")) {
try {
return Files.list(Paths.get(p.substring(0, p.length() - 1)))
.filter(Files::isRegularFile)
.filter(t -> t.toAbsolutePath().getFileName().toString().toLowerCase().endsWith(".jar"));
} catch (Exception e) {
return Stream.empty();
}
}
return Stream.of(Paths.get(p));
})
.filter(Files::exists)
.map(Path::toAbsolutePath)
.forEachOrdered(task::addClassPath);
task.setOutputDir(m.outputDir);
task.addClasses(m.classes);
task.setErrorHandle(new PrintWriter(System.err, true));
task.addRuntimeSearchPath();
task.run();
}
@Override
public String toString() {
return String.format("Main[modulePath='%s', classpath='%s', showVersion=%s, showHelp=%s, outputDir=%s, classes=%s]", modulePath, classpath, showVersion, showHelp, outputDir, classes);
}
}
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