Repackage.java

   1 package org.argeo.build;
   2
   3 import static java.lang.System.Logger.Level.DEBUG;
   4 import static java.lang.System.Logger.Level.ERROR;
   5 import static java.lang.System.Logger.Level.INFO;
   6 import static java.lang.System.Logger.Level.TRACE;
   7 import static java.lang.System.Logger.Level.WARNING;
   8 import static java.nio.file.FileVisitResult.CONTINUE;
   9 import static org.argeo.build.Repackage.ManifestConstants.BUNDLE_SYMBOLICNAME;
  10 import static org.argeo.build.Repackage.ManifestConstants.BUNDLE_VERSION;
  11 import static org.argeo.build.Repackage.ManifestConstants.EXPORT_PACKAGE;
  12 import static org.argeo.build.Repackage.ManifestConstants.SLC_ORIGIN_M2;
  13 import static org.argeo.build.Repackage.ManifestConstants.SLC_ORIGIN_M2_REPO;
  14
  15 import java.io.File;
  16 import java.io.FileNotFoundException;
  17 import java.io.IOException;
  18 import java.io.InputStream;
  19 import java.io.OutputStream;
  20 import java.lang.System.Logger;
  21 import java.net.MalformedURLException;
  22 import java.net.URL;
  23 import java.nio.charset.StandardCharsets;
  24 import java.nio.file.DirectoryStream;
  25 import java.nio.file.FileSystem;
  26 import java.nio.file.FileSystems;
  27 import java.nio.file.FileVisitResult;
  28 import java.nio.file.Files;
  29 import java.nio.file.Path;
  30 import java.nio.file.PathMatcher;
  31 import java.nio.file.Paths;
  32 import java.nio.file.SimpleFileVisitor;
  33 import java.nio.file.StandardOpenOption;
  34 import java.nio.file.attribute.BasicFileAttributes;
  35 import java.util.ArrayList;
  36 import java.util.HashMap;
  37 import java.util.Iterator;
  38 import java.util.List;
  39 import java.util.Map;
  40 import java.util.Objects;
  41 import java.util.Properties;
  42 import java.util.TreeMap;
  43 import java.util.concurrent.CompletableFuture;
  44 import java.util.jar.Attributes;
  45 import java.util.jar.JarEntry;
  46 import java.util.jar.JarInputStream;
  47 import java.util.jar.JarOutputStream;
  48 import java.util.jar.Manifest;
  49 import java.util.zip.Deflater;
  50
  51 import aQute.bnd.osgi.Analyzer;
  52 import aQute.bnd.osgi.Jar;
  53
  54 /**
  55  * Simple tool repackaging existing jar files into OSGi bundles in an A2
  56  * repository.
  57  */
  58 public class Repackage {
  59         private final static Logger logger = System.getLogger(Repackage.class.getName());
  60
  61         /**
  62          * Environment properties on whether sources should be packaged separately or
  63          * integrated in the bundles.
  64          */
  65         private final static String ENV_SOURCE_BUNDLES = "SOURCE_BUNDLES";
  66
  67         /** Whethere repackaging should run in parallel or sequentially. */
  68         private final static boolean parallel = true;
  69
  70         /** Main entry point. */
  71         public static void main(String[] args) {
  72                 if (args.length < 2) {
  73                         System.err.println("Usage: <path to a2 output dir> <category1> <category2> ...");
  74                         System.exit(1);
  75                 }
  76                 Path a2Base = Paths.get(args[0]).toAbsolutePath().normalize();
  77                 Path descriptorsBase = Paths.get(".").toAbsolutePath().normalize();
  78                 Repackage factory = new Repackage(a2Base, descriptorsBase);
  79
  80                 List<CompletableFuture<Void>> toDos = new ArrayList<>();
  81                 for (int i = 1; i < args.length; i++) {
  82                         Path p = Paths.get(args[i]);
  83                         if (parallel)
  84                                 toDos.add(CompletableFuture.runAsync(() -> factory.processCategory(p)));
  85                         else
  86                                 factory.processCategory(p);
  87                 }
  88                 CompletableFuture.allOf(toDos.toArray(new CompletableFuture[toDos.size()])).join();
  89         }
  90
  91         private final static String COMMON_BND = "common.bnd";
  92         private final static String MERGE_BND = "merge.bnd";
  93
  94         /** Directory where to download archives */
  95         private Path originBase;
  96         /** Directory where to download Maven artifacts */
  97         private Path mavenBase;
  98
  99         /** A2 repository base for binary bundles */
 100         private Path a2Base;
 101         /** A2 repository base for source bundles */
 102         private Path a2SrcBase;
 103         /** A2 base for native components */
 104         private Path a2LibBase;
 105         /** Location of the descriptors driving the packaging */
 106         private Path descriptorsBase;
 107         /** URIs of archives to download */
 108         private Properties uris = new Properties();
 109         /** Mirrors for archive download. Key is URI prefix, value list of base URLs */
 110         private Map<String, List<String>> mirrors = new HashMap<String, List<String>>();
 111
 112         /** Whether sources should be packaged separately */
 113         private final boolean sourceBundles;
 114
 115         /** Constructor initialises the various variables */
 116         public Repackage(Path a2Base, Path descriptorsBase) {
 117                 sourceBundles = Boolean.parseBoolean(System.getenv(ENV_SOURCE_BUNDLES));
 118                 if (sourceBundles)
 119                         logger.log(INFO, "Sources will be packaged separately");
 120
 121                 Objects.requireNonNull(a2Base);
 122                 Objects.requireNonNull(descriptorsBase);
 123                 this.originBase = Paths.get(System.getProperty("user.home"), ".cache", "argeo/build/origin");
 124                 this.mavenBase = Paths.get(System.getProperty("user.home"), ".m2", "repository");
 125
 126                 // TODO define and use a build base
 127                 this.a2Base = a2Base;
 128                 this.a2SrcBase = a2Base.getParent().resolve(a2Base.getFileName() + ".src");
 129                 this.a2LibBase = a2Base.resolve("lib");
 130                 this.descriptorsBase = descriptorsBase;
 131                 if (!Files.exists(this.descriptorsBase))
 132                         throw new IllegalArgumentException(this.descriptorsBase + " does not exist");
 133
 134                 // URIs mapping
 135                 Path urisPath = this.descriptorsBase.resolve("uris.properties");
 136                 if (Files.exists(urisPath)) {
 137                         try (InputStream in = Files.newInputStream(urisPath)) {
 138                                 uris.load(in);
 139                         } catch (IOException e) {
 140                                 throw new IllegalStateException("Cannot load " + urisPath, e);
 141                         }
 142                 }
 143
 144                 // Eclipse mirrors
 145                 Path eclipseMirrorsPath = this.descriptorsBase.resolve("eclipse.mirrors.txt");
 146                 List<String> eclipseMirrors = new ArrayList<>();
 147                 if (Files.exists(eclipseMirrorsPath)) {
 148                         try {
 149                                 eclipseMirrors = Files.readAllLines(eclipseMirrorsPath, StandardCharsets.UTF_8);
 150                         } catch (IOException e) {
 151                                 throw new IllegalStateException("Cannot load " + eclipseMirrorsPath, e);
 152                         }
 153                         for (Iterator<String> it = eclipseMirrors.iterator(); it.hasNext();) {
 154                                 String value = it.next();
 155                                 if (value.strip().equals(""))
 156                                         it.remove();
 157                         }
 158                 }
 159                 mirrors.put("http://www.eclipse.org/downloads", eclipseMirrors);
 160         }
 161
 162         /*
 163          * MAVEN ORIGIN
 164          */
 165         /** Process a whole category/group id. */
 166         public void processCategory(Path categoryRelativePath) {
 167                 try {
 168                         Path targetCategoryBase = descriptorsBase.resolve(categoryRelativePath);
 169                         DirectoryStream<Path> bnds = Files.newDirectoryStream(targetCategoryBase,
 170                                         (p) -> p.getFileName().toString().endsWith(".bnd") && !p.getFileName().toString().equals(COMMON_BND)
 171                                                         && !p.getFileName().toString().equals(MERGE_BND));
 172                         for (Path p : bnds) {
 173                                 processSingleM2ArtifactDistributionUnit(p);
 174                         }
 175
 176                         DirectoryStream<Path> dus = Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p));
 177                         for (Path duDir : dus) {
 178                                 if (duDir.getFileName().toString().startsWith("eclipse-")) {
 179                                         processEclipseArchive(duDir);
 180                                 } else {
 181                                         processM2BasedDistributionUnit(duDir);
 182                                 }
 183                         }
 184                 } catch (IOException e) {
 185                         throw new RuntimeException("Cannot process category " + categoryRelativePath, e);
 186                 }
 187         }
 188
 189         /** Process a standalone Maven artifact. */
 190         public void processSingleM2ArtifactDistributionUnit(Path bndFile) {
 191                 try {
 192                         Path categoryRelativePath = descriptorsBase.relativize(bndFile.getParent());
 193                         Path targetCategoryBase = a2Base.resolve(categoryRelativePath);
 194
 195                         Properties fileProps = new Properties();
 196                         try (InputStream in = Files.newInputStream(bndFile)) {
 197                                 fileProps.load(in);
 198                         }
 199                         String repoStr = fileProps.containsKey(SLC_ORIGIN_M2_REPO.toString())
 200                                         ? fileProps.getProperty(SLC_ORIGIN_M2_REPO.toString())
 201                                         : null;
 202
 203                         if (!fileProps.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 204                                 // use file name as symbolic name
 205                                 String symbolicName = bndFile.getFileName().toString();
 206                                 symbolicName = symbolicName.substring(0, symbolicName.length() - ".bnd".length());
 207                                 fileProps.put(BUNDLE_SYMBOLICNAME.toString(), symbolicName);
 208                         }
 209
 210                         String m2Coordinates = fileProps.getProperty(SLC_ORIGIN_M2.toString());
 211                         if (m2Coordinates == null)
 212                                 throw new IllegalArgumentException("No M2 coordinates available for " + bndFile);
 213                         M2Artifact artifact = new M2Artifact(m2Coordinates);
 214                         URL url = M2ConventionsUtils.mavenRepoUrl(repoStr, artifact);
 215                         Path downloaded = downloadMaven(url, artifact);
 216
 217                         Path targetBundleDir = processBndJar(downloaded, targetCategoryBase, fileProps, artifact);
 218                         downloadAndProcessM2Sources(repoStr, artifact, targetBundleDir);
 219
 220                         createJar(targetBundleDir);
 221                 } catch (Exception e) {
 222                         throw new RuntimeException("Cannot process " + bndFile, e);
 223                 }
 224         }
 225
 226         /** Process multiple Maven artifacts. */
 227         public void processM2BasedDistributionUnit(Path duDir) {
 228                 try {
 229                         Path categoryRelativePath = descriptorsBase.relativize(duDir.getParent());
 230                         Path targetCategoryBase = a2Base.resolve(categoryRelativePath);
 231
 232                         Path mergeBnd = duDir.resolve(MERGE_BND);
 233                         if (Files.exists(mergeBnd)) // merge
 234                                 mergeM2Artifacts(mergeBnd);
 235
 236                         Path commonBnd = duDir.resolve(COMMON_BND);
 237                         if (!Files.exists(commonBnd))
 238                                 return;
 239
 240                         Properties commonProps = new Properties();
 241                         try (InputStream in = Files.newInputStream(commonBnd)) {
 242                                 commonProps.load(in);
 243                         }
 244
 245                         String m2Version = commonProps.getProperty(SLC_ORIGIN_M2.toString());
 246                         if (m2Version == null) {
 247                                 logger.log(WARNING, "Ignoring " + duDir + " as it is not an M2-based distribution unit");
 248                                 return;// ignore, this is probably an Eclipse archive
 249                         }
 250                         if (!m2Version.startsWith(":")) {
 251                                 throw new IllegalStateException("Only the M2 version can be specified: " + m2Version);
 252                         }
 253                         m2Version = m2Version.substring(1);
 254
 255                         DirectoryStream<Path> ds = Files.newDirectoryStream(duDir,
 256                                         (p) -> p.getFileName().toString().endsWith(".bnd") && !p.getFileName().toString().equals(COMMON_BND)
 257                                                         && !p.getFileName().toString().equals(MERGE_BND));
 258                         for (Path p : ds) {
 259                                 Properties fileProps = new Properties();
 260                                 try (InputStream in = Files.newInputStream(p)) {
 261                                         fileProps.load(in);
 262                                 }
 263                                 String m2Coordinates = fileProps.getProperty(SLC_ORIGIN_M2.toString());
 264                                 M2Artifact artifact = new M2Artifact(m2Coordinates);
 265                                 artifact.setVersion(m2Version);
 266
 267                                 // prepare manifest entries
 268                                 Properties mergeProps = new Properties();
 269                                 mergeProps.putAll(commonProps);
 270
 271                                 fileEntries: for (Object key : fileProps.keySet()) {
 272                                         if (ManifestConstants.SLC_ORIGIN_M2.toString().equals(key))
 273                                                 continue fileEntries;
 274                                         String value = fileProps.getProperty(key.toString());
 275                                         Object previousValue = mergeProps.put(key.toString(), value);
 276                                         if (previousValue != null) {
 277                                                 logger.log(WARNING,
 278                                                                 commonBnd + ": " + key + " was " + previousValue + ", overridden with " + value);
 279                                         }
 280                                 }
 281                                 mergeProps.put(ManifestConstants.SLC_ORIGIN_M2.toString(), artifact.toM2Coordinates());
 282                                 if (!mergeProps.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 283                                         // use file name as symbolic name
 284                                         String symbolicName = p.getFileName().toString();
 285                                         symbolicName = symbolicName.substring(0, symbolicName.length() - ".bnd".length());
 286                                         mergeProps.put(BUNDLE_SYMBOLICNAME.toString(), symbolicName);
 287                                 }
 288
 289                                 String repoStr = mergeProps.containsKey(SLC_ORIGIN_M2_REPO.toString())
 290                                                 ? mergeProps.getProperty(SLC_ORIGIN_M2_REPO.toString())
 291                                                 : null;
 292
 293                                 // download
 294                                 URL url = M2ConventionsUtils.mavenRepoUrl(repoStr, artifact);
 295                                 Path downloaded = downloadMaven(url, artifact);
 296
 297                                 Path targetBundleDir = processBndJar(downloaded, targetCategoryBase, mergeProps, artifact);
 298                                 downloadAndProcessM2Sources(repoStr, artifact, targetBundleDir);
 299                                 createJar(targetBundleDir);
 300                         }
 301                 } catch (IOException e) {
 302                         throw new RuntimeException("Cannot process " + duDir, e);
 303                 }
 304         }
 305
 306         /** Merge multiple Maven artifacts. */
 307         protected void mergeM2Artifacts(Path mergeBnd) throws IOException {
 308                 Path duDir = mergeBnd.getParent();
 309                 String category = duDir.getParent().getFileName().toString();
 310                 Path targetCategoryBase = a2Base.resolve(category);
 311
 312                 Properties mergeProps = new Properties();
 313                 try (InputStream in = Files.newInputStream(mergeBnd)) {
 314                         mergeProps.load(in);
 315                 }
 316
 317                 String m2Version = mergeProps.getProperty(SLC_ORIGIN_M2.toString());
 318                 if (m2Version == null) {
 319                         logger.log(WARNING, "Ignoring " + duDir + " as it is not an M2-based distribution unit");
 320                         return;// ignore, this is probably an Eclipse archive
 321                 }
 322                 if (!m2Version.startsWith(":")) {
 323                         throw new IllegalStateException("Only the M2 version can be specified: " + m2Version);
 324                 }
 325                 m2Version = m2Version.substring(1);
 326                 mergeProps.put(ManifestConstants.BUNDLE_VERSION.toString(), m2Version);
 327
 328                 String artifactsStr = mergeProps.getProperty(ManifestConstants.SLC_ORIGIN_M2_MERGE.toString());
 329                 if (artifactsStr == null)
 330                         throw new IllegalArgumentException(
 331                                         mergeBnd + ": " + ManifestConstants.SLC_ORIGIN_M2_MERGE + " must be set");
 332
 333                 String repoStr = mergeProps.containsKey(SLC_ORIGIN_M2_REPO.toString())
 334                                 ? mergeProps.getProperty(SLC_ORIGIN_M2_REPO.toString())
 335                                 : null;
 336
 337                 String bundleSymbolicName = mergeProps.getProperty(ManifestConstants.BUNDLE_SYMBOLICNAME.toString());
 338                 if (bundleSymbolicName == null)
 339                         throw new IllegalArgumentException("Bundle-SymbolicName must be set in " + mergeBnd);
 340                 CategoryNameVersion nameVersion = new M2Artifact(category + ":" + bundleSymbolicName + ":" + m2Version);
 341
 342                 Path targetBundleDir = targetCategoryBase.resolve(bundleSymbolicName + "." + nameVersion.getBranch());
 343
 344                 String[] artifacts = artifactsStr.split(",");
 345                 artifacts: for (String str : artifacts) {
 346                         String m2Coordinates = str.trim();
 347                         if ("".equals(m2Coordinates))
 348                                 continue artifacts;
 349                         M2Artifact artifact = new M2Artifact(m2Coordinates.trim());
 350                         if (artifact.getVersion() == null)
 351                                 artifact.setVersion(m2Version);
 352                         URL url = M2ConventionsUtils.mavenRepoUrl(repoStr, artifact);
 353                         Path downloaded = downloadMaven(url, artifact);
 354                         JarEntry entry;
 355                         try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(downloaded), false)) {
 356                                 entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 357                                         if (entry.isDirectory())
 358                                                 continue entries;
 359                                         else if (entry.getName().endsWith(".RSA") || entry.getName().endsWith(".SF"))
 360                                                 continue entries;
 361                                         else if (entry.getName().startsWith("META-INF/versions/"))
 362                                                 continue entries;
 363                                         else if (entry.getName().startsWith("META-INF/maven/"))
 364                                                 continue entries;
 365                                         else if (entry.getName().equals("module-info.class"))
 366                                                 continue entries;
 367                                         else if (entry.getName().equals("META-INF/NOTICE"))
 368                                                 continue entries;
 369                                         else if (entry.getName().equals("META-INF/NOTICE.txt"))
 370                                                 continue entries;
 371                                         else if (entry.getName().equals("META-INF/LICENSE"))
 372                                                 continue entries;
 373                                         else if (entry.getName().equals("META-INF/LICENSE.md"))
 374                                                 continue entries;
 375                                         else if (entry.getName().equals("META-INF/LICENSE-notice.md"))
 376                                                 continue entries;
 377                                         else if (entry.getName().equals("META-INF/DEPENDENCIES"))
 378                                                 continue entries;
 379                                         if (entry.getName().startsWith(".cache/")) // Apache SSHD
 380                                                 continue entries;
 381                                         Path target = targetBundleDir.resolve(entry.getName());
 382                                         Files.createDirectories(target.getParent());
 383                                         if (!Files.exists(target)) {
 384                                                 Files.copy(jarIn, target);
 385                                         } else {
 386                                                 if (entry.getName().startsWith("META-INF/services/")) {
 387                                                         try (OutputStream out = Files.newOutputStream(target, StandardOpenOption.APPEND)) {
 388                                                                 out.write("\n".getBytes());
 389                                                                 jarIn.transferTo(out);
 390                                                                 logger.log(DEBUG, artifact.getArtifactId() + " - Appended " + entry.getName());
 391                                                         }
 392                                                 } else if (entry.getName().startsWith("org/apache/batik/")) {
 393                                                         logger.log(TRACE, "Skip " + entry.getName());
 394                                                         continue entries;
 395                                                 } else {
 396                                                         throw new IllegalStateException("File " + target + " from " + artifact + " already exists");
 397                                                 }
 398                                         }
 399                                         logger.log(TRACE, () -> "Copied " + target);
 400                                 }
 401
 402                         }
 403                         downloadAndProcessM2Sources(repoStr, artifact, targetBundleDir);
 404                 }
 405
 406                 // additional service files
 407                 Path servicesDir = duDir.resolve("services");
 408                 if (Files.exists(servicesDir)) {
 409                         for (Path p : Files.newDirectoryStream(servicesDir)) {
 410                                 Path target = targetBundleDir.resolve("META-INF/services/").resolve(p.getFileName());
 411                                 try (InputStream in = Files.newInputStream(p);
 412                                                 OutputStream out = Files.newOutputStream(target, StandardOpenOption.APPEND);) {
 413                                         out.write("\n".getBytes());
 414                                         in.transferTo(out);
 415                                         logger.log(DEBUG, "Appended " + p);
 416                                 }
 417                         }
 418                 }
 419
 420                 Map<String, String> entries = new TreeMap<>();
 421                 try (Analyzer bndAnalyzer = new Analyzer()) {
 422                         bndAnalyzer.setProperties(mergeProps);
 423                         Jar jar = new Jar(targetBundleDir.toFile());
 424                         bndAnalyzer.setJar(jar);
 425                         Manifest manifest = bndAnalyzer.calcManifest();
 426
 427                         keys: for (Object key : manifest.getMainAttributes().keySet()) {
 428                                 Object value = manifest.getMainAttributes().get(key);
 429
 430                                 switch (key.toString()) {
 431                                 case "Tool":
 432                                 case "Bnd-LastModified":
 433                                 case "Created-By":
 434                                         continue keys;
 435                                 }
 436                                 if ("Require-Capability".equals(key.toString())
 437                                                 && value.toString().equals("osgi.ee;filter:=\"(&(osgi.ee=JavaSE)(version=1.1))\""))
 438                                         continue keys;// hack for very old classes
 439                                 entries.put(key.toString(), value.toString());
 440                         }
 441                 } catch (Exception e) {
 442                         throw new RuntimeException("Cannot process " + mergeBnd, e);
 443                 }
 444
 445                 Manifest manifest = new Manifest();
 446                 Path manifestPath = targetBundleDir.resolve("META-INF/MANIFEST.MF");
 447                 Files.createDirectories(manifestPath.getParent());
 448                 for (String key : entries.keySet()) {
 449                         String value = entries.get(key);
 450                         manifest.getMainAttributes().putValue(key, value);
 451                 }
 452
 453                 try (OutputStream out = Files.newOutputStream(manifestPath)) {
 454                         manifest.write(out);
 455                 }
 456                 createJar(targetBundleDir);
 457         }
 458
 459         /** Generate MANIFEST using BND. */
 460         protected Path processBndJar(Path downloaded, Path targetCategoryBase, Properties fileProps, M2Artifact artifact) {
 461
 462                 try {
 463                         Map<String, String> additionalEntries = new TreeMap<>();
 464                         boolean doNotModify = Boolean.parseBoolean(fileProps
 465                                         .getOrDefault(ManifestConstants.SLC_ORIGIN_MANIFEST_NOT_MODIFIED.toString(), "false").toString());
 466
 467                         // we always force the symbolic name
 468
 469                         if (doNotModify) {
 470                                 fileEntries: for (Object key : fileProps.keySet()) {
 471                                         if (ManifestConstants.SLC_ORIGIN_M2.toString().equals(key))
 472                                                 continue fileEntries;
 473                                         String value = fileProps.getProperty(key.toString());
 474                                         additionalEntries.put(key.toString(), value);
 475                                 }
 476                         } else {
 477                                 if (artifact != null) {
 478                                         if (!fileProps.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 479                                                 fileProps.put(BUNDLE_SYMBOLICNAME.toString(), artifact.getName());
 480                                         }
 481                                         if (!fileProps.containsKey(BUNDLE_VERSION.toString())) {
 482                                                 fileProps.put(BUNDLE_VERSION.toString(), artifact.getVersion());
 483                                         }
 484                                 }
 485
 486                                 if (!fileProps.containsKey(EXPORT_PACKAGE.toString())) {
 487                                         fileProps.put(EXPORT_PACKAGE.toString(),
 488                                                         "*;version=\"" + fileProps.getProperty(BUNDLE_VERSION.toString()) + "\"");
 489                                 }
 490
 491                                 try (Analyzer bndAnalyzer = new Analyzer()) {
 492                                         bndAnalyzer.setProperties(fileProps);
 493                                         Jar jar = new Jar(downloaded.toFile());
 494                                         bndAnalyzer.setJar(jar);
 495                                         Manifest manifest = bndAnalyzer.calcManifest();
 496
 497                                         keys: for (Object key : manifest.getMainAttributes().keySet()) {
 498                                                 Object value = manifest.getMainAttributes().get(key);
 499
 500                                                 switch (key.toString()) {
 501                                                 case "Tool":
 502                                                 case "Bnd-LastModified":
 503                                                 case "Created-By":
 504                                                         continue keys;
 505                                                 }
 506                                                 if ("Require-Capability".equals(key.toString())
 507                                                                 && value.toString().equals("osgi.ee;filter:=\"(&(osgi.ee=JavaSE)(version=1.1))\""))
 508                                                         continue keys;// hack for very old classes
 509                                                 additionalEntries.put(key.toString(), value.toString());
 510                                                 // logger.log(DEBUG, () -> key + "=" + value);
 511
 512                                         }
 513                                 }
 514                         }
 515                         Path targetBundleDir = processBundleJar(downloaded, targetCategoryBase, additionalEntries);
 516                         logger.log(DEBUG, () -> "Processed " + downloaded);
 517                         return targetBundleDir;
 518                 } catch (Exception e) {
 519                         throw new RuntimeException("Cannot BND process " + downloaded, e);
 520                 }
 521
 522         }
 523
 524         /** Download and integrates sources for a single Maven artifact. */
 525         protected void downloadAndProcessM2Sources(String repoStr, M2Artifact artifact, Path targetBundleDir)
 526                         throws IOException {
 527                 try {
 528                         M2Artifact sourcesArtifact = new M2Artifact(artifact.toM2Coordinates(), "sources");
 529                         URL sourcesUrl = M2ConventionsUtils.mavenRepoUrl(repoStr, sourcesArtifact);
 530                         Path sourcesDownloaded = downloadMaven(sourcesUrl, artifact, true);
 531                         processM2SourceJar(sourcesDownloaded, targetBundleDir);
 532                         logger.log(TRACE, () -> "Processed source " + sourcesDownloaded);
 533                 } catch (Exception e) {
 534                         logger.log(ERROR, () -> "Cannot download source for  " + artifact);
 535                 }
 536
 537         }
 538
 539         /** Integrate sources from a downloaded jar file. */
 540         protected void processM2SourceJar(Path file, Path targetBundleDir) throws IOException {
 541                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 542                         Path targetSourceDir = sourceBundles
 543                                         ? targetBundleDir.getParent().resolve(targetBundleDir.toString() + ".src")
 544                                         : targetBundleDir.resolve("OSGI-OPT/src");
 545
 546                         Files.createDirectories(targetSourceDir);
 547                         JarEntry entry;
 548                         entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 549                                 if (entry.isDirectory())
 550                                         continue entries;
 551                                 if (entry.getName().startsWith("META-INF"))// skip META-INF entries
 552                                         continue entries;
 553                                 if (entry.getName().startsWith("module-info.java"))// skip META-INF entries
 554                                         continue entries;
 555                                 if (entry.getName().startsWith("/")) // absolute paths
 556                                         continue entries;
 557                                 Path target = targetSourceDir.resolve(entry.getName());
 558                                 Files.createDirectories(target.getParent());
 559                                 if (!Files.exists(target)) {
 560                                         Files.copy(jarIn, target);
 561                                         logger.log(TRACE, () -> "Copied source " + target);
 562                                 } else {
 563                                         logger.log(TRACE, () -> target + " already exists, skipping...");
 564                                 }
 565                         }
 566                 }
 567
 568         }
 569
 570         /** Download a Maven artifact. */
 571         protected Path downloadMaven(URL url, M2Artifact artifact) throws IOException {
 572                 return downloadMaven(url, artifact, false);
 573         }
 574
 575         /** Download a Maven artifact. */
 576         protected Path downloadMaven(URL url, M2Artifact artifact, boolean sources) throws IOException {
 577                 return download(url, mavenBase, artifact.getGroupId().replace(".", "/") //
 578                                 + '/' + artifact.getArtifactId() + '/' + artifact.getVersion() //
 579                                 + '/' + artifact.getArtifactId() + "-" + artifact.getVersion() + (sources ? "-sources" : "") + ".jar");
 580         }
 581
 582         /*
 583          * ECLIPSE ORIGIN
 584          */
 585         /** Process an archive in Eclipse format. */
 586         public void processEclipseArchive(Path duDir) {
 587                 try {
 588                         Path categoryRelativePath = descriptorsBase.relativize(duDir.getParent());
 589                         Path targetCategoryBase = a2Base.resolve(categoryRelativePath);
 590                         Files.createDirectories(targetCategoryBase);
 591                         // first delete all directories from previous builds
 592                         for (Path dir : Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p)))
 593                                 deleteDirectory(dir);
 594
 595                         Files.createDirectories(originBase);
 596
 597                         Path commonBnd = duDir.resolve(COMMON_BND);
 598                         Properties commonProps = new Properties();
 599                         try (InputStream in = Files.newInputStream(commonBnd)) {
 600                                 commonProps.load(in);
 601                         }
 602                         String url = commonProps.getProperty(ManifestConstants.SLC_ORIGIN_URI.toString());
 603                         if (url == null) {
 604                                 url = uris.getProperty(duDir.getFileName().toString());
 605                                 if (url == null)
 606                                         throw new IllegalStateException("No url available for " + duDir);
 607                                 commonProps.put(ManifestConstants.SLC_ORIGIN_URI.toString(), url);
 608                         }
 609                         Path downloaded = tryDownloadArchive(url, originBase);
 610
 611                         FileSystem zipFs = FileSystems.newFileSystem(downloaded, (ClassLoader) null);
 612
 613                         // filters
 614                         List<PathMatcher> includeMatchers = new ArrayList<>();
 615                         Properties includes = new Properties();
 616                         try (InputStream in = Files.newInputStream(duDir.resolve("includes.properties"))) {
 617                                 includes.load(in);
 618                         }
 619                         for (Object pattern : includes.keySet()) {
 620                                 PathMatcher pathMatcher = zipFs.getPathMatcher("glob:/" + pattern);
 621                                 includeMatchers.add(pathMatcher);
 622                         }
 623
 624                         List<PathMatcher> excludeMatchers = new ArrayList<>();
 625                         Path excludeFile = duDir.resolve("excludes.properties");
 626                         if (Files.exists(excludeFile)) {
 627                                 Properties excludes = new Properties();
 628                                 try (InputStream in = Files.newInputStream(excludeFile)) {
 629                                         excludes.load(in);
 630                                 }
 631                                 for (Object pattern : excludes.keySet()) {
 632                                         PathMatcher pathMatcher = zipFs.getPathMatcher("glob:/" + pattern);
 633                                         excludeMatchers.add(pathMatcher);
 634                                 }
 635                         }
 636
 637                         Files.walkFileTree(zipFs.getRootDirectories().iterator().next(), new SimpleFileVisitor<Path>() {
 638
 639                                 @Override
 640                                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
 641                                         includeMatchers: for (PathMatcher includeMatcher : includeMatchers) {
 642                                                 if (includeMatcher.matches(file)) {
 643                                                         for (PathMatcher excludeMatcher : excludeMatchers) {
 644                                                                 if (excludeMatcher.matches(file)) {
 645                                                                         logger.log(TRACE, "Skipping excluded " + file);
 646                                                                         return FileVisitResult.CONTINUE;
 647                                                                 }
 648                                                         }
 649                                                         if (file.getFileName().toString().contains(".source_")) {
 650                                                                 processEclipseSourceJar(file, targetCategoryBase);
 651                                                                 logger.log(DEBUG, () -> "Processed source " + file);
 652                                                         } else {
 653                                                                 Map<String, String> map = new HashMap<>();
 654                                                                 for (Object key : commonProps.keySet())
 655                                                                         map.put(key.toString(), commonProps.getProperty(key.toString()));
 656                                                                 processBundleJar(file, targetCategoryBase, map);
 657                                                                 logger.log(DEBUG, () -> "Processed " + file);
 658                                                         }
 659                                                         break includeMatchers;
 660                                                 }
 661                                         }
 662                                         return FileVisitResult.CONTINUE;
 663                                 }
 664                         });
 665
 666                         DirectoryStream<Path> dirs = Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p)
 667                                         && p.getFileName().toString().indexOf('.') >= 0 && !p.getFileName().toString().endsWith(".src"));
 668                         for (Path dir : dirs) {
 669                                 createJar(dir);
 670                         }
 671                 } catch (IOException e) {
 672                         throw new RuntimeException("Cannot process " + duDir, e);
 673                 }
 674
 675         }
 676
 677         /** Process sources in Eclipse format. */
 678         protected void processEclipseSourceJar(Path file, Path targetBase) throws IOException {
 679                 try {
 680                         Path targetBundleDir;
 681                         try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 682                                 Manifest manifest = jarIn.getManifest();
 683
 684                                 String[] relatedBundle = manifest.getMainAttributes().getValue("Eclipse-SourceBundle").split(";");
 685                                 String version = relatedBundle[1].substring("version=\"".length());
 686                                 version = version.substring(0, version.length() - 1);
 687                                 NameVersion nameVersion = new NameVersion(relatedBundle[0], version);
 688                                 targetBundleDir = targetBase.resolve(nameVersion.getName() + "." + nameVersion.getBranch());
 689
 690                                 Path targetSourceDir = sourceBundles
 691                                                 ? targetBundleDir.getParent().resolve(targetBundleDir.toString() + ".src")
 692                                                 : targetBundleDir.resolve("OSGI-OPT/src");
 693
 694                                 Files.createDirectories(targetSourceDir);
 695                                 JarEntry entry;
 696                                 entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 697                                         if (entry.isDirectory())
 698                                                 continue entries;
 699                                         if (entry.getName().startsWith("META-INF"))// skip META-INF entries
 700                                                 continue entries;
 701                                         Path target = targetSourceDir.resolve(entry.getName());
 702                                         Files.createDirectories(target.getParent());
 703                                         Files.copy(jarIn, target);
 704                                         logger.log(TRACE, () -> "Copied source " + target);
 705                                 }
 706                         }
 707                 } catch (IOException e) {
 708                         throw new IllegalStateException("Cannot process " + file, e);
 709                 }
 710         }
 711
 712         /*
 713          * COMMON PROCESSING
 714          */
 715         /** Normalise a bundle. */
 716         protected Path processBundleJar(Path file, Path targetBase, Map<String, String> entries) throws IOException {
 717                 NameVersion nameVersion;
 718                 Path targetBundleDir;
 719                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 720                         Manifest sourceManifest = jarIn.getManifest();
 721                         Manifest manifest = sourceManifest != null ? new Manifest(sourceManifest) : new Manifest();
 722
 723                         // singleton
 724                         boolean isSingleton = false;
 725                         String rawSourceSymbolicName = manifest.getMainAttributes()
 726                                         .getValue(ManifestConstants.BUNDLE_SYMBOLICNAME.toString());
 727                         if (rawSourceSymbolicName != null) {
 728                                 // make sure there is no directive
 729                                 String[] arr = rawSourceSymbolicName.split(";");
 730                                 for (int i = 1; i < arr.length; i++) {
 731                                         if (arr[i].trim().equals("singleton:=true"))
 732                                                 isSingleton = true;
 733                                         logger.log(DEBUG, file.getFileName() + " is a singleton");
 734                                 }
 735                         }
 736                         // remove problematic entries in MANIFEST
 737                         manifest.getEntries().clear();
 738
 739                         String ourSymbolicName = entries.get(BUNDLE_SYMBOLICNAME.toString());
 740                         String ourVersion = entries.get(BUNDLE_VERSION.toString());
 741
 742                         if (ourSymbolicName != null && ourVersion != null) {
 743                                 nameVersion = new NameVersion(ourSymbolicName, ourVersion);
 744                         } else {
 745                                 nameVersion = nameVersionFromManifest(manifest);
 746                                 if (ourVersion != null && !nameVersion.getVersion().equals(ourVersion)) {
 747                                         logger.log(WARNING,
 748                                                         "Original version is " + nameVersion.getVersion() + " while new version is " + ourVersion);
 749                                         entries.put(BUNDLE_VERSION.toString(), ourVersion);
 750                                 }
 751                                 if (ourSymbolicName != null) {
 752                                         // we always force our symbolic name
 753                                         nameVersion.setName(ourSymbolicName);
 754                                 }
 755                         }
 756                         targetBundleDir = targetBase.resolve(nameVersion.getName() + "." + nameVersion.getBranch());
 757
 758                         // force Java 9 module name
 759                         entries.put(ManifestConstants.AUTOMATIC_MODULE_NAME.toString(), nameVersion.getName());
 760
 761                         boolean isNative = false;
 762                         String os = null;
 763                         String arch = null;
 764                         if (targetBundleDir.startsWith(a2LibBase)) {
 765                                 isNative = true;
 766                                 Path libRelativePath = a2LibBase.relativize(targetBundleDir);
 767                                 os = libRelativePath.getName(0).toString();
 768                                 arch = libRelativePath.getName(1).toString();
 769                         }
 770
 771                         // copy entries
 772                         JarEntry entry;
 773                         entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 774                                 if (entry.isDirectory())
 775                                         continue entries;
 776                                 if (entry.getName().endsWith(".RSA") || entry.getName().endsWith(".SF"))
 777                                         continue entries;
 778                                 if (entry.getName().endsWith("module-info.class")) // skip Java 9 module info
 779                                         continue entries;
 780                                 if (entry.getName().startsWith("META-INF/versions/")) // skip multi-version
 781                                         continue entries;
 782                                 // skip file system providers as they cause issues with native image
 783                                 if (entry.getName().startsWith("META-INF/services/java.nio.file.spi.FileSystemProvider"))
 784                                         continue entries;
 785                                 if (entry.getName().startsWith("OSGI-OPT/src/")) // skip embedded sources
 786                                         continue entries;
 787                                 Path target = targetBundleDir.resolve(entry.getName());
 788                                 Files.createDirectories(target.getParent());
 789                                 Files.copy(jarIn, target);
 790
 791                                 // native libraries
 792                                 if (isNative && (entry.getName().endsWith(".so") || entry.getName().endsWith(".dll")
 793                                                 || entry.getName().endsWith(".jnilib"))) {
 794                                         Path categoryDir = targetBundleDir.getParent();
 795                                         boolean copyDll = false;
 796                                         Path targetDll = categoryDir.resolve(targetBundleDir.relativize(target));
 797                                         if (nameVersion.getName().equals("com.sun.jna")) {
 798                                                 if (arch.equals("x86_64"))
 799                                                         arch = "x86-64";
 800                                                 if (os.equals("macosx"))
 801                                                         os = "darwin";
 802                                                 if (target.getParent().getFileName().toString().equals(os + "-" + arch)) {
 803                                                         copyDll = true;
 804                                                 }
 805                                                 targetDll = categoryDir.resolve(target.getFileName());
 806                                         } else {
 807                                                 copyDll = true;
 808                                         }
 809                                         if (copyDll) {
 810                                                 Files.createDirectories(targetDll.getParent());
 811                                                 if (Files.exists(targetDll))
 812                                                         Files.delete(targetDll);
 813                                                 Files.copy(target, targetDll);
 814                                         }
 815                                         Files.delete(target);
 816                                 }
 817                                 logger.log(TRACE, () -> "Copied " + target);
 818                         }
 819
 820                         // copy MANIFEST
 821                         Path manifestPath = targetBundleDir.resolve("META-INF/MANIFEST.MF");
 822                         Files.createDirectories(manifestPath.getParent());
 823
 824                         if (isSingleton && entries.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 825                                 entries.put(BUNDLE_SYMBOLICNAME.toString(),
 826                                                 entries.get(BUNDLE_SYMBOLICNAME.toString()) + ";singleton:=true");
 827                         }
 828
 829                         for (String key : entries.keySet()) {
 830                                 String value = entries.get(key);
 831                                 Object previousValue = manifest.getMainAttributes().putValue(key, value);
 832                                 if (previousValue != null && !previousValue.equals(value)) {
 833                                         if (ManifestConstants.IMPORT_PACKAGE.toString().equals(key)
 834                                                         || ManifestConstants.EXPORT_PACKAGE.toString().equals(key)
 835                                                         || ManifestConstants.BUNDLE_LICENSE.toString().equals(key))
 836                                                 logger.log(TRACE, file.getFileName() + ": " + key + " was modified");
 837                                         else
 838                                                 logger.log(WARNING, file.getFileName() + ": " + key + " was " + previousValue
 839                                                                 + ", overridden with " + value);
 840                                 }
 841
 842                                 // hack to remove unresolvable
 843                                 if (key.equals("Provide-Capability") || key.equals("Require-Capability"))
 844                                         if (nameVersion.getName().equals("osgi.core") || nameVersion.getName().equals("osgi.cmpn")) {
 845                                                 manifest.getMainAttributes().remove(key);
 846                                         }
 847                         }
 848                         try (OutputStream out = Files.newOutputStream(manifestPath)) {
 849                                 manifest.write(out);
 850                         }
 851                 }
 852                 return targetBundleDir;
 853         }
 854
 855         /*
 856          * UTILITIES
 857          */
 858         /** Recursively deletes a directory. */
 859         private static void deleteDirectory(Path path) throws IOException {
 860                 if (!Files.exists(path))
 861                         return;
 862                 Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
 863                         @Override
 864                         public FileVisitResult postVisitDirectory(Path directory, IOException e) throws IOException {
 865                                 if (e != null)
 866                                         throw e;
 867                                 Files.delete(directory);
 868                                 return CONTINUE;
 869                         }
 870
 871                         @Override
 872                         public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
 873                                 Files.delete(file);
 874                                 return CONTINUE;
 875                         }
 876                 });
 877         }
 878
 879         /** Extract name/version from a MANIFEST. */
 880         protected NameVersion nameVersionFromManifest(Manifest manifest) {
 881                 Attributes attrs = manifest.getMainAttributes();
 882                 // symbolic name
 883                 String symbolicName = attrs.getValue(ManifestConstants.BUNDLE_SYMBOLICNAME.toString());
 884                 if (symbolicName == null)
 885                         return null;
 886                 // make sure there is no directive
 887                 symbolicName = symbolicName.split(";")[0];
 888
 889                 String version = attrs.getValue(ManifestConstants.BUNDLE_VERSION.toString());
 890                 return new NameVersion(symbolicName, version);
 891         }
 892
 893         /** Try to download from an URI. */
 894         protected Path tryDownloadArchive(String uri, Path dir) throws IOException {
 895                 // find mirror
 896                 List<String> urlBases = null;
 897                 String uriPrefix = null;
 898                 uriPrefixes: for (String uriPref : mirrors.keySet()) {
 899                         if (uri.startsWith(uriPref)) {
 900                                 if (mirrors.get(uriPref).size() > 0) {
 901                                         urlBases = mirrors.get(uriPref);
 902                                         uriPrefix = uriPref;
 903                                         break uriPrefixes;
 904                                 }
 905                         }
 906                 }
 907                 if (urlBases == null)
 908                         try {
 909                                 return downloadArchive(new URL(uri), dir);
 910                         } catch (FileNotFoundException e) {
 911                                 throw new FileNotFoundException("Cannot find " + uri);
 912                         }
 913
 914                 // try to download
 915                 for (String urlBase : urlBases) {
 916                         String relativePath = uri.substring(uriPrefix.length());
 917                         URL url = new URL(urlBase + relativePath);
 918                         try {
 919                                 return downloadArchive(url, dir);
 920                         } catch (FileNotFoundException e) {
 921                                 logger.log(WARNING, "Cannot download " + url + ", trying another mirror");
 922                         }
 923                 }
 924                 throw new FileNotFoundException("Cannot find " + uri);
 925         }
 926
 927         /**
 928          * Effectively download. Synchronised in order to avoid downloading twice in
 929          * parallel.
 930          */
 931         protected synchronized Path downloadArchive(URL url, Path dir) throws IOException {
 932                 return download(url, dir, (String) null);
 933         }
 934
 935         /** Effectively download. */
 936         protected Path download(URL url, Path dir, String name) throws IOException {
 937
 938                 Path dest;
 939                 if (name == null) {
 940                         // We use also use parent directory in case the archive itself has a fixed name
 941                         String[] segments = url.getPath().split("/");
 942                         name = segments.length > 1 ? segments[segments.length - 2] + '-' + segments[segments.length - 1]
 943                                         : segments[segments.length - 1];
 944                 }
 945
 946                 dest = dir.resolve(name);
 947                 if (Files.exists(dest)) {
 948                         logger.log(TRACE, () -> "File " + dest + " already exists for " + url + ", not downloading again");
 949                         return dest;
 950                 } else {
 951                         Files.createDirectories(dest.getParent());
 952                 }
 953
 954                 try (InputStream in = url.openStream()) {
 955                         Files.copy(in, dest);
 956                         logger.log(DEBUG, () -> "Downloaded " + dest + " from " + url);
 957                 }
 958                 return dest;
 959         }
 960
 961         /** Create a JAR file from a directory. */
 962         protected Path createJar(Path bundleDir) throws IOException {
 963                 // Create the jar
 964                 Path jarPath = bundleDir.getParent().resolve(bundleDir.getFileName() + ".jar");
 965                 Path manifestPath = bundleDir.resolve("META-INF/MANIFEST.MF");
 966                 Manifest manifest;
 967                 try (InputStream in = Files.newInputStream(manifestPath)) {
 968                         manifest = new Manifest(in);
 969                 }
 970                 try (JarOutputStream jarOut = new JarOutputStream(Files.newOutputStream(jarPath), manifest)) {
 971                         jarOut.setLevel(Deflater.DEFAULT_COMPRESSION);
 972                         Files.walkFileTree(bundleDir, new SimpleFileVisitor<Path>() {
 973
 974                                 @Override
 975                                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
 976                                         if (file.getFileName().toString().equals("MANIFEST.MF"))
 977                                                 return super.visitFile(file, attrs);
 978                                         JarEntry entry = new JarEntry(
 979                                                         bundleDir.relativize(file).toString().replace(File.separatorChar, '/'));
 980                                         jarOut.putNextEntry(entry);
 981                                         Files.copy(file, jarOut);
 982                                         return super.visitFile(file, attrs);
 983                                 }
 984
 985                         });
 986                 }
 987                 deleteDirectory(bundleDir);
 988
 989                 if (sourceBundles) {
 990                         Path bundleCategoryDir = bundleDir.getParent();
 991                         Path sourceDir = bundleCategoryDir.resolve(bundleDir.toString() + ".src");
 992                         if (!Files.exists(sourceDir)) {
 993                                 logger.log(WARNING, sourceDir + " does not exist, skipping...");
 994                                 return jarPath;
 995
 996                         }
 997
 998                         Path relPath = a2Base.relativize(bundleCategoryDir);
 999                         Path srcCategoryDir = a2SrcBase.resolve(relPath);
1000                         Path srcJarP = srcCategoryDir.resolve(sourceDir.getFileName() + ".jar");
1001                         Files.createDirectories(srcJarP.getParent());
1002
1003                         String bundleSymbolicName = manifest.getMainAttributes().getValue("Bundle-SymbolicName").toString();
1004                         // in case there are additional directives
1005                         bundleSymbolicName = bundleSymbolicName.split(";")[0];
1006                         Manifest srcManifest = new Manifest();
1007                         srcManifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
1008                         srcManifest.getMainAttributes().putValue("Bundle-SymbolicName", bundleSymbolicName + ".src");
1009                         srcManifest.getMainAttributes().putValue("Bundle-Version",
1010                                         manifest.getMainAttributes().getValue("Bundle-Version").toString());
1011                         srcManifest.getMainAttributes().putValue("Eclipse-SourceBundle",
1012                                         bundleSymbolicName + ";version=\"" + manifest.getMainAttributes().getValue("Bundle-Version"));
1013
1014                         try (JarOutputStream srcJarOut = new JarOutputStream(Files.newOutputStream(srcJarP), srcManifest)) {
1015                                 srcJarOut.setLevel(Deflater.BEST_COMPRESSION);
1016                                 Files.walkFileTree(sourceDir, new SimpleFileVisitor<Path>() {
1017
1018                                         @Override
1019                                         public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
1020                                                 if (file.getFileName().toString().equals("MANIFEST.MF"))
1021                                                         return super.visitFile(file, attrs);
1022                                                 JarEntry entry = new JarEntry(
1023                                                                 sourceDir.relativize(file).toString().replace(File.separatorChar, '/'));
1024                                                 srcJarOut.putNextEntry(entry);
1025                                                 Files.copy(file, srcJarOut);
1026                                                 return super.visitFile(file, attrs);
1027                                         }
1028
1029                                 });
1030                         }
1031                         deleteDirectory(sourceDir);
1032                 }
1033
1034                 return jarPath;
1035         }
1036
1037         /** MANIFEST headers. */
1038         enum ManifestConstants {
1039                 // OSGi
1040                 BUNDLE_SYMBOLICNAME("Bundle-SymbolicName"), //
1041                 BUNDLE_VERSION("Bundle-Version"), //
1042                 BUNDLE_LICENSE("Bundle-License"), //
1043                 EXPORT_PACKAGE("Export-Package"), //
1044                 IMPORT_PACKAGE("Import-Package"), //
1045                 // JAVA
1046                 AUTOMATIC_MODULE_NAME("Automatic-Module-Name"), //
1047                 // SLC
1048                 SLC_CATEGORY("SLC-Category"), //
1049                 SLC_ORIGIN_M2("SLC-Origin-M2"), //
1050                 SLC_ORIGIN_M2_MERGE("SLC-Origin-M2-Merge"), //
1051                 SLC_ORIGIN_M2_REPO("SLC-Origin-M2-Repo"), //
1052                 SLC_ORIGIN_MANIFEST_NOT_MODIFIED("SLC-Origin-ManifestNotModified"), //
1053                 SLC_ORIGIN_URI("SLC-Origin-URI"), //
1054                 ;
1055
1056                 final String value;
1057
1058                 private ManifestConstants(String value) {
1059                         this.value = value;
1060                 }
1061
1062                 @Override
1063                 public String toString() {
1064                         return value;
1065                 }
1066         }
1067 }
1068
1069 /** Simple representation of an M2 artifact. */
1070 class M2Artifact extends CategoryNameVersion {
1071         private String classifier;
1072
1073         M2Artifact(String m2coordinates) {
1074                 this(m2coordinates, null);
1075         }
1076
1077         M2Artifact(String m2coordinates, String classifier) {
1078                 String[] parts = m2coordinates.split(":");
1079                 setCategory(parts[0]);
1080                 setName(parts[1]);
1081                 if (parts.length > 2) {
1082                         setVersion(parts[2]);
1083                 }
1084                 this.classifier = classifier;
1085         }
1086
1087         String getGroupId() {
1088                 return super.getCategory();
1089         }
1090
1091         String getArtifactId() {
1092                 return super.getName();
1093         }
1094
1095         String toM2Coordinates() {
1096                 return getCategory() + ":" + getName() + (getVersion() != null ? ":" + getVersion() : "");
1097         }
1098
1099         String getClassifier() {
1100                 return classifier != null ? classifier : "";
1101         }
1102
1103         String getExtension() {
1104                 return "jar";
1105         }
1106 }
1107
1108 /** Utilities around Maven (conventions based). */
1109 class M2ConventionsUtils {
1110         final static String MAVEN_CENTRAL_BASE_URL = "https://repo1.maven.org/maven2/";
1111
1112         /** The file name of this artifact when stored */
1113         static String artifactFileName(M2Artifact artifact) {
1114                 return artifact.getArtifactId() + '-' + artifact.getVersion()
1115                                 + (artifact.getClassifier().equals("") ? "" : '-' + artifact.getClassifier()) + '.'
1116                                 + artifact.getExtension();
1117         }
1118
1119         /** Absolute path to the file */
1120         static String artifactPath(String artifactBasePath, M2Artifact artifact) {
1121                 return artifactParentPath(artifactBasePath, artifact) + '/' + artifactFileName(artifact);
1122         }
1123
1124         /** Absolute path to the file */
1125         static String artifactUrl(String repoUrl, M2Artifact artifact) {
1126                 if (repoUrl.endsWith("/"))
1127                         return repoUrl + artifactPath("/", artifact).substring(1);
1128                 else
1129                         return repoUrl + artifactPath("/", artifact);
1130         }
1131
1132         /** Absolute path to the file */
1133         static URL mavenRepoUrl(String repoBase, M2Artifact artifact) {
1134                 String url = artifactUrl(repoBase == null ? MAVEN_CENTRAL_BASE_URL : repoBase, artifact);
1135                 try {
1136                         return new URL(url);
1137                 } catch (MalformedURLException e) {
1138                         // it should not happen
1139                         throw new IllegalStateException(e);
1140                 }
1141         }
1142
1143         /** Absolute path to the directories where the files will be stored */
1144         static String artifactParentPath(String artifactBasePath, M2Artifact artifact) {
1145                 return artifactBasePath + (artifactBasePath.endsWith("/") ? "" : "/") + artifactParentPath(artifact);
1146         }
1147
1148         /** Relative path to the directories where the files will be stored */
1149         static String artifactParentPath(M2Artifact artifact) {
1150                 return artifact.getGroupId().replace('.', '/') + '/' + artifact.getArtifactId() + '/' + artifact.getVersion();
1151         }
1152
1153         /** Singleton */
1154         private M2ConventionsUtils() {
1155         }
1156 }
1157
1158 /** Combination of a category, a name and a version. */
1159 class CategoryNameVersion extends NameVersion {
1160         private String category;
1161
1162         CategoryNameVersion() {
1163         }
1164
1165         CategoryNameVersion(String category, String name, String version) {
1166                 super(name, version);
1167                 this.category = category;
1168         }
1169
1170         CategoryNameVersion(String category, NameVersion nameVersion) {
1171                 super(nameVersion);
1172                 this.category = category;
1173         }
1174
1175         String getCategory() {
1176                 return category;
1177         }
1178
1179         void setCategory(String category) {
1180                 this.category = category;
1181         }
1182
1183         @Override
1184         public String toString() {
1185                 return category + ":" + super.toString();
1186         }
1187
1188 }
1189
1190 /** Combination of a name and a version. */
1191 class NameVersion implements Comparable<NameVersion> {
1192         private String name;
1193         private String version;
1194
1195         NameVersion() {
1196         }
1197
1198         /** Interprets string in OSGi-like format my.module.name;version=0.0.0 */
1199         NameVersion(String nameVersion) {
1200                 int index = nameVersion.indexOf(";version=");
1201                 if (index < 0) {
1202                         setName(nameVersion);
1203                         setVersion(null);
1204                 } else {
1205                         setName(nameVersion.substring(0, index));
1206                         setVersion(nameVersion.substring(index + ";version=".length()));
1207                 }
1208         }
1209
1210         NameVersion(String name, String version) {
1211                 this.name = name;
1212                 this.version = version;
1213         }
1214
1215         NameVersion(NameVersion nameVersion) {
1216                 this.name = nameVersion.getName();
1217                 this.version = nameVersion.getVersion();
1218         }
1219
1220         String getName() {
1221                 return name;
1222         }
1223
1224         void setName(String name) {
1225                 this.name = name;
1226         }
1227
1228         String getVersion() {
1229                 return version;
1230         }
1231
1232         void setVersion(String version) {
1233                 this.version = version;
1234         }
1235
1236         String getBranch() {
1237                 String[] parts = getVersion().split("\\.");
1238                 if (parts.length < 2)
1239                         throw new IllegalStateException("Version " + getVersion() + " cannot be interpreted as branch.");
1240                 return parts[0] + "." + parts[1];
1241         }
1242
1243         @Override
1244         public boolean equals(Object obj) {
1245                 if (obj instanceof NameVersion) {
1246                         NameVersion nameVersion = (NameVersion) obj;
1247                         return name.equals(nameVersion.getName()) && version.equals(nameVersion.getVersion());
1248                 } else
1249                         return false;
1250         }
1251
1252         @Override
1253         public int hashCode() {
1254                 return name.hashCode();
1255         }
1256
1257         @Override
1258         public String toString() {
1259                 return name + ":" + version;
1260         }
1261
1262         public int compareTo(NameVersion o) {
1263                 if (o.getName().equals(name))
1264                         return version.compareTo(o.getVersion());
1265                 else
1266                         return name.compareTo(o.getName());
1267         }
1268 }