src/org/argeo/build/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 java.nio.file.StandardOpenOption.APPEND;
  10 import static java.nio.file.StandardOpenOption.CREATE;
  11 import static java.util.jar.Attributes.Name.MANIFEST_VERSION;
  12 import static org.argeo.build.Repackage.ManifestHeader.ARGEO_ORIGIN_DO_NOT_MODIFY;
  13 import static org.argeo.build.Repackage.ManifestHeader.ARGEO_ORIGIN_M2;
  14 import static org.argeo.build.Repackage.ManifestHeader.ARGEO_ORIGIN_M2_MERGE;
  15 import static org.argeo.build.Repackage.ManifestHeader.ARGEO_ORIGIN_M2_REPO;
  16 import static org.argeo.build.Repackage.ManifestHeader.ARGEO_ORIGIN_NO_METADATA_GENERATION;
  17 import static org.argeo.build.Repackage.ManifestHeader.ARGEO_ORIGIN_SOURCES_URI;
  18 import static org.argeo.build.Repackage.ManifestHeader.ARGEO_ORIGIN_URI;
  19 import static org.argeo.build.Repackage.ManifestHeader.AUTOMATIC_MODULE_NAME;
  20 import static org.argeo.build.Repackage.ManifestHeader.BUNDLE_LICENSE;
  21 import static org.argeo.build.Repackage.ManifestHeader.BUNDLE_SYMBOLICNAME;
  22 import static org.argeo.build.Repackage.ManifestHeader.BUNDLE_VERSION;
  23 import static org.argeo.build.Repackage.ManifestHeader.ECLIPSE_SOURCE_BUNDLE;
  24 import static org.argeo.build.Repackage.ManifestHeader.EXPORT_PACKAGE;
  25 import static org.argeo.build.Repackage.ManifestHeader.IMPORT_PACKAGE;
  26 //import static org.argeo.build.Repackage.ManifestHeader.REQUIRE_BUNDLE;
  27 import static org.argeo.build.Repackage.ManifestHeader.SPDX_LICENSE_IDENTIFIER;
  28
  29 import java.io.BufferedWriter;
  30 import java.io.File;
  31 import java.io.FileNotFoundException;
  32 import java.io.IOException;
  33 import java.io.InputStream;
  34 import java.io.OutputStream;
  35 import java.lang.System.Logger;
  36 import java.net.URI;
  37 import java.net.URISyntaxException;
  38 import java.nio.charset.StandardCharsets;
  39 import java.nio.file.DirectoryStream;
  40 import java.nio.file.FileSystem;
  41 import java.nio.file.FileSystems;
  42 import java.nio.file.FileVisitResult;
  43 import java.nio.file.Files;
  44 import java.nio.file.Path;
  45 import java.nio.file.PathMatcher;
  46 import java.nio.file.Paths;
  47 import java.nio.file.SimpleFileVisitor;
  48 import java.nio.file.StandardCopyOption;
  49 import java.nio.file.StandardOpenOption;
  50 import java.nio.file.attribute.BasicFileAttributes;
  51 import java.util.ArrayList;
  52 import java.util.HashMap;
  53 import java.util.Iterator;
  54 import java.util.List;
  55 import java.util.Map;
  56 import java.util.Objects;
  57 import java.util.Properties;
  58 import java.util.Set;
  59 import java.util.StringJoiner;
  60 import java.util.TreeMap;
  61 import java.util.TreeSet;
  62 import java.util.concurrent.CompletableFuture;
  63 import java.util.jar.Attributes;
  64 import java.util.jar.JarEntry;
  65 import java.util.jar.JarInputStream;
  66 import java.util.jar.JarOutputStream;
  67 import java.util.jar.Manifest;
  68 import java.util.zip.Deflater;
  69
  70 import aQute.bnd.osgi.Analyzer;
  71 import aQute.bnd.osgi.Jar;
  72
  73 /** Repackages existing jar files into OSGi bundles in an A2 repository. */
  74 public class Repackage {
  75         final static Logger logger = System.getLogger(Repackage.class.getName());
  76
  77         /**
  78          * Environment variable on whether sources should be packaged separately or
  79          * integrated in the bundles.
  80          */
  81         final static String ENV_SOURCE_BUNDLES = "SOURCE_BUNDLES";
  82         /** Environment variable on whether operations should be parallelised. */
  83         final static String ENV_ARGEO_BUILD_SEQUENTIAL = "ARGEO_BUILD_SEQUENTIAL";
  84
  85         /** Whether repackaging should run in parallel (default) or sequentially. */
  86         final static boolean sequential = Boolean.parseBoolean(System.getenv(ENV_ARGEO_BUILD_SEQUENTIAL));
  87
  88         /** Main entry point. */
  89         public static void main(String[] args) {
  90                 if (sequential)
  91                         logger.log(INFO, "Build will be sequential");
  92                 if (args.length < 2) {
  93                         System.err.println("Usage: <path to a2 output dir> <category1> <category2> ...");
  94                         System.exit(1);
  95                 }
  96                 Path a2Base = Paths.get(args[0]).toAbsolutePath().normalize();
  97                 Path descriptorsBase = Paths.get(".").toAbsolutePath().normalize();
  98                 Repackage factory = new Repackage(a2Base, descriptorsBase);
  99
 100                 List<CompletableFuture<Void>> toDos = new ArrayList<>();
 101                 for (int i = 1; i < args.length; i++) {
 102                         Path categoryPath = Paths.get(args[i]);
 103                         factory.cleanPreviousFailedBuild(categoryPath);
 104                         if (sequential) // sequential processing happens here
 105                                 factory.processCategory(categoryPath);
 106                         else
 107                                 toDos.add(CompletableFuture.runAsync(() -> factory.processCategory(categoryPath)));
 108                 }
 109                 if (!sequential)// parallel processing
 110                         CompletableFuture.allOf(toDos.toArray(new CompletableFuture[toDos.size()])).join();
 111
 112                 // Summary
 113                 StringBuilder sb = new StringBuilder();
 114                 for (String licenseId : licensesUsed.keySet())
 115                         for (String name : licensesUsed.get(licenseId))
 116                                 sb.append((licenseId.equals("") ? "Proprietary" : licenseId) + "\t\t" + name + "\n");
 117                 logger.log(INFO, "# License summary:\n" + sb);
 118         }
 119
 120         /** Deletes remaining sub directories. */
 121         void cleanPreviousFailedBuild(Path categoryPath) {
 122                 Path outputCategoryPath = a2Base.resolve(categoryPath);
 123                 if (!Files.exists(outputCategoryPath))
 124                         return;
 125                 // clean previous failed build
 126                 try {
 127                         for (Path subDir : Files.newDirectoryStream(outputCategoryPath, (d) -> Files.isDirectory(d))) {
 128                                 if (Files.exists(subDir)) {
 129                                         logger.log(WARNING, "Bundle dir " + subDir
 130                                                         + " already exists, probably from a previous failed build, deleting it...");
 131                                         deleteDirectory(subDir);
 132                                 }
 133                         }
 134                 } catch (IOException e) {
 135                         logger.log(ERROR, "Cannot clean previous build", e);
 136                 }
 137         }
 138
 139         /** MANIFEST headers. */
 140         enum ManifestHeader {
 141                 // OSGi
 142                 /** OSGi bundle symbolic name. */
 143                 BUNDLE_SYMBOLICNAME("Bundle-SymbolicName"), //
 144                 /** OSGi bundle version. */
 145                 BUNDLE_VERSION("Bundle-Version"), //
 146                 /** OSGi bundle license. */
 147                 BUNDLE_LICENSE("Bundle-License"), //
 148                 /** OSGi exported packages list. */
 149                 EXPORT_PACKAGE("Export-Package"), //
 150                 /** OSGi imported packages list. */
 151                 IMPORT_PACKAGE("Import-Package"), //
 152 //              /** OSGi required bundles. */
 153 //              REQUIRE_BUNDLE("Require-Bundle"), //
 154 //              /** OSGi path to embedded jar. */
 155 //              BUNDLE_CLASSPATH("Bundle-Classpath"), //
 156                 // Java
 157                 /** Java module name. */
 158                 AUTOMATIC_MODULE_NAME("Automatic-Module-Name"), //
 159                 // Eclipse
 160                 /** Eclipse source bundle. */
 161                 ECLIPSE_SOURCE_BUNDLE("Eclipse-SourceBundle"), //
 162                 // SPDX
 163                 /**
 164                  * SPDX license identifier.
 165                  *
 166                  * @see https://spdx.org/licenses/
 167                  */
 168                 SPDX_LICENSE_IDENTIFIER("SPDX-License-Identifier"), //
 169                 // Argeo Origin
 170                 /**
 171                  * Maven coordinates of the origin, possibly partial when using common.bnd or
 172                  * merge.bnd.
 173                  */
 174                 ARGEO_ORIGIN_M2("Argeo-Origin-M2"), //
 175                 /** List of Maven coordinates to merge. */
 176                 ARGEO_ORIGIN_M2_MERGE("Argeo-Origin-M2-Merge"), //
 177                 /** Maven repository, if not the default one. */
 178                 ARGEO_ORIGIN_M2_REPO("Argeo-Origin-M2-Repo"), //
 179                 /**
 180                  * Do not perform BND analysis of the origin component. Typically Import-Package
 181                  * and Export-Package will be kept untouched.
 182                  */
 183                 ARGEO_ORIGIN_NO_METADATA_GENERATION("Argeo-Origin-NoMetadataGeneration"), //
 184                 /** Keep JPMS module-info */
 185                 ARGEO_ORIGIN_KEEP_MODULE_INFO("Argeo-Origin-KeepModuleInfo"), //
 186 //              /**
 187 //               * Embed the original jar without modifying it (may be required by some
 188 //               * proprietary licenses, such as JCR Day License).
 189 //               */
 190 //              ARGEO_ORIGIN_EMBED("Argeo-Origin-Embed"), //
 191                 /**
 192                  * Do not modify original jar (may be required by some proprietary licenses,
 193                  * such as JCR Day License).
 194                  */
 195                 ARGEO_ORIGIN_DO_NOT_MODIFY("Argeo-Origin-Do-Not-Modify"), //
 196                 /**
 197                  * Origin (non-Maven) URI of the component. It may be anything (jar, archive,
 198                  * etc.).
 199                  */
 200                 ARGEO_ORIGIN_URI("Argeo-Origin-URI"), //
 201                 /**
 202                  * Origin (non-Maven) URI of the source of the component. It may be anything
 203                  * (jar, archive, code repository, etc.).
 204                  */
 205                 ARGEO_ORIGIN_SOURCES_URI("Argeo-Origin-Sources-URI"), //
 206                 ;
 207
 208                 final String headerName;
 209
 210                 private ManifestHeader(String headerName) {
 211                         this.headerName = headerName;
 212                 }
 213
 214                 @Override
 215                 public String toString() {
 216                         return headerName;
 217                 }
 218
 219                 /** Get the value from either a {@link Manifest} or a {@link Properties}. */
 220                 String get(Object map) {
 221                         if (map instanceof Manifest manifest)
 222                                 return manifest.getMainAttributes().getValue(headerName);
 223                         else if (map instanceof Properties props)
 224                                 return props.getProperty(headerName);
 225                         else
 226                                 throw new IllegalArgumentException("Unsupported mapping " + map.getClass());
 227                 }
 228
 229                 /** Put the value into either a {@link Manifest} or a {@link Properties}. */
 230                 void put(Object map, String value) {
 231                         if (map instanceof Manifest manifest)
 232                                 manifest.getMainAttributes().putValue(headerName, value);
 233                         else if (map instanceof Properties props)
 234                                 props.setProperty(headerName, value);
 235                         else
 236                                 throw new IllegalArgumentException("Unsupported mapping " + map.getClass());
 237                 }
 238         }
 239
 240         /** Name of the file centralising information for multiple M2 artifacts. */
 241         final static String COMMON_BND = "common.bnd";
 242         /** Name of the file centralising information for mergin M2 artifacts. */
 243         final static String MERGE_BND = "merge.bnd";
 244         /**
 245          * Subdirectory of the jar file where origin informations (changes, legal
 246          * notices etc. are stored)
 247          */
 248         final static String ARGEO_ORIGIN = "ARGEO-ORIGIN";
 249         /** File detailing modifications to the original component. */
 250         final static String CHANGES = ARGEO_ORIGIN + "/changes";
 251         /**
 252          * Name of the file at the root of the repackaged jar, which prominently
 253          * notifies that the component has be repackaged.
 254          */
 255         final static String README_REPACKAGED = "README.repackaged";
 256
 257         // cache
 258         /** Summary of all license seen during the repackaging. */
 259         final static Map<String, Set<String>> licensesUsed = new TreeMap<>();
 260
 261         /** Directory where to download archives */
 262         final Path originBase;
 263         /** Directory where to download Maven artifacts */
 264         final Path mavenBase;
 265
 266         /** A2 repository base for binary bundles */
 267         final Path a2Base;
 268         /** A2 repository base for source bundles */
 269         final Path a2SrcBase;
 270         /** A2 base for native components */
 271         final Path a2LibBase;
 272         /** Location of the descriptors driving the packaging */
 273         final Path descriptorsBase;
 274         /** URIs of archives to download */
 275         final Properties uris = new Properties();
 276         /** Mirrors for archive download. Key is URI prefix, value list of base URLs */
 277         final Map<String, List<String>> mirrors = new HashMap<String, List<String>>();
 278
 279         /** Whether sources should be packaged separately */
 280         final boolean separateSources;
 281
 282         /** Constructor initialises the various variables */
 283         public Repackage(Path a2Base, Path descriptorsBase) {
 284                 separateSources = Boolean.parseBoolean(System.getenv(ENV_SOURCE_BUNDLES));
 285                 if (separateSources)
 286                         logger.log(INFO, "Sources will be packaged separately");
 287
 288                 Objects.requireNonNull(a2Base);
 289                 Objects.requireNonNull(descriptorsBase);
 290                 this.originBase = Paths.get(System.getProperty("user.home"), ".cache", "argeo/build/origin");
 291                 this.mavenBase = Paths.get(System.getProperty("user.home"), ".m2", "repository");
 292
 293                 // TODO define and use a build base
 294                 this.a2Base = a2Base;
 295                 this.a2SrcBase = separateSources ? a2Base.getParent().resolve(a2Base.getFileName() + ".src") : a2Base;
 296                 this.a2LibBase = a2Base.resolve("lib");
 297                 this.descriptorsBase = descriptorsBase;
 298                 if (!Files.exists(this.descriptorsBase))
 299                         throw new IllegalArgumentException(this.descriptorsBase + " does not exist");
 300
 301                 // URIs mapping
 302                 Path urisPath = this.descriptorsBase.resolve("uris.properties");
 303                 if (Files.exists(urisPath)) {
 304                         try (InputStream in = Files.newInputStream(urisPath)) {
 305                                 uris.load(in);
 306                         } catch (IOException e) {
 307                                 throw new IllegalStateException("Cannot load " + urisPath, e);
 308                         }
 309                 }
 310
 311                 // Eclipse mirrors
 312                 Path eclipseMirrorsPath = this.descriptorsBase.resolve("eclipse.mirrors.txt");
 313                 List<String> eclipseMirrors = new ArrayList<>();
 314                 if (Files.exists(eclipseMirrorsPath)) {
 315                         try {
 316                                 eclipseMirrors = Files.readAllLines(eclipseMirrorsPath, StandardCharsets.UTF_8);
 317                         } catch (IOException e) {
 318                                 throw new IllegalStateException("Cannot load " + eclipseMirrorsPath, e);
 319                         }
 320                         for (Iterator<String> it = eclipseMirrors.iterator(); it.hasNext();) {
 321                                 String value = it.next();
 322                                 if (value.strip().equals(""))
 323                                         it.remove();
 324                         }
 325                 }
 326                 mirrors.put("http://www.eclipse.org/downloads", eclipseMirrors);
 327         }
 328
 329         /*
 330          * MAVEN ORIGIN
 331          */
 332         /** Process a whole category/group id. */
 333         void processCategory(Path categoryRelativePath) {
 334                 try {
 335                         Path targetCategoryBase = descriptorsBase.resolve(categoryRelativePath);
 336                         DirectoryStream<Path> bnds = Files.newDirectoryStream(targetCategoryBase,
 337                                         (p) -> p.getFileName().toString().endsWith(".bnd") && !p.getFileName().toString().equals(COMMON_BND)
 338                                                         && !p.getFileName().toString().equals(MERGE_BND));
 339                         for (Path p : bnds) {
 340                                 processSingleM2ArtifactDistributionUnit(p);
 341                         }
 342
 343                         DirectoryStream<Path> dus = Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p));
 344                         for (Path duDir : dus) {
 345                                 if (duDir.getFileName().toString().startsWith("eclipse-")) {
 346                                         processEclipseArchive(duDir);
 347                                 } else {
 348                                         processM2BasedDistributionUnit(duDir);
 349                                 }
 350                         }
 351                 } catch (IOException e) {
 352                         throw new RuntimeException("Cannot process category " + categoryRelativePath, e);
 353                 }
 354         }
 355
 356         /** Process a standalone Maven artifact. */
 357         void processSingleM2ArtifactDistributionUnit(Path bndFile) {
 358                 try {
 359                         Path categoryRelativePath = descriptorsBase.relativize(bndFile.getParent());
 360                         Path targetCategoryBase = a2Base.resolve(categoryRelativePath);
 361
 362                         Properties fileProps = new Properties();
 363                         try (InputStream in = Files.newInputStream(bndFile)) {
 364                                 fileProps.load(in);
 365                         }
 366                         // use file name as symbolic name
 367                         if (!fileProps.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 368                                 String symbolicName = bndFile.getFileName().toString();
 369                                 symbolicName = symbolicName.substring(0, symbolicName.length() - ".bnd".length());
 370                                 fileProps.put(BUNDLE_SYMBOLICNAME.toString(), symbolicName);
 371                         }
 372
 373                         String m2Coordinates = fileProps.getProperty(ARGEO_ORIGIN_M2.toString());
 374                         if (m2Coordinates == null)
 375                                 throw new IllegalArgumentException("No M2 coordinates available for " + bndFile);
 376                         M2Artifact artifact = new M2Artifact(m2Coordinates);
 377
 378                         Path downloaded = downloadMaven(fileProps, artifact);
 379
 380                         boolean doNotModify = Boolean
 381                                         .parseBoolean(fileProps.getOrDefault(ARGEO_ORIGIN_DO_NOT_MODIFY.toString(), "false").toString());
 382                         if (doNotModify) {
 383                                 processNotModified(targetCategoryBase, downloaded, fileProps, artifact);
 384                                 return;
 385                         }
 386
 387                         // regular processing
 388                         A2Origin origin = new A2Origin();
 389                         Path bundleDir = processBndJar(downloaded, targetCategoryBase, fileProps, artifact, origin);
 390                         downloadAndProcessM2Sources(fileProps, artifact, bundleDir, false, false);
 391                         createJar(bundleDir, origin);
 392                 } catch (Exception e) {
 393                         throw new RuntimeException("Cannot process " + bndFile, e);
 394                 }
 395         }
 396
 397         /**
 398          * Process multiple Maven artifacts coming from a same project and therefore
 399          * with information in common (typically the version), generating single bundles
 400          * or merging them if necessary.
 401          *
 402          * @see #COMMON_BND
 403          * @see #MERGE_BND
 404          */
 405         void processM2BasedDistributionUnit(Path duDir) {
 406                 try {
 407                         Path categoryRelativePath = descriptorsBase.relativize(duDir.getParent());
 408                         Path targetCategoryBase = a2Base.resolve(categoryRelativePath);
 409
 410                         Path mergeBnd = duDir.resolve(MERGE_BND);
 411                         if (Files.exists(mergeBnd)) // merge
 412                                 mergeM2Artifacts(mergeBnd);
 413
 414                         Path commonBnd = duDir.resolve(COMMON_BND);
 415                         if (!Files.exists(commonBnd))
 416                                 return;
 417
 418                         Properties commonProps = new Properties();
 419                         try (InputStream in = Files.newInputStream(commonBnd)) {
 420                                 commonProps.load(in);
 421                         }
 422
 423                         String m2Version = commonProps.getProperty(ARGEO_ORIGIN_M2.toString());
 424                         if (m2Version == null) {
 425                                 logger.log(WARNING, "Ignoring " + duDir + " as it is not an M2-based distribution unit");
 426                                 return;// ignore, this is probably an Eclipse archive
 427                         }
 428                         if (!m2Version.startsWith(":")) {
 429                                 throw new IllegalStateException("Only the M2 version can be specified: " + m2Version);
 430                         }
 431                         m2Version = m2Version.substring(1);
 432
 433                         DirectoryStream<Path> ds = Files.newDirectoryStream(duDir,
 434                                         (p) -> p.getFileName().toString().endsWith(".bnd") && !p.getFileName().toString().equals(COMMON_BND)
 435                                                         && !p.getFileName().toString().equals(MERGE_BND));
 436                         for (Path p : ds) {
 437                                 Properties fileProps = new Properties();
 438                                 try (InputStream in = Files.newInputStream(p)) {
 439                                         fileProps.load(in);
 440                                 }
 441                                 String m2Coordinates = fileProps.getProperty(ARGEO_ORIGIN_M2.toString());
 442                                 M2Artifact artifact = new M2Artifact(m2Coordinates);
 443                                 if (artifact.getVersion() == null) {
 444                                         artifact.setVersion(m2Version);
 445                                 } else {
 446                                         logger.log(DEBUG, p.getFileName() + " : Using version " + artifact.getVersion()
 447                                                         + " specified in descriptor rather than " + m2Version + " specified in " + COMMON_BND);
 448                                 }
 449
 450                                 // prepare manifest entries
 451                                 Properties mergedProps = new Properties();
 452                                 mergedProps.putAll(commonProps);
 453
 454                                 fileEntries: for (Object key : fileProps.keySet()) {
 455                                         if (ARGEO_ORIGIN_M2.toString().equals(key))
 456                                                 continue fileEntries;
 457                                         String value = fileProps.getProperty(key.toString());
 458                                         Object previousValue = mergedProps.put(key.toString(), value);
 459                                         if (previousValue != null) {
 460                                                 logger.log(WARNING,
 461                                                                 commonBnd + ": " + key + " was " + previousValue + ", overridden with " + value);
 462                                         }
 463                                 }
 464                                 mergedProps.put(ARGEO_ORIGIN_M2.toString(), artifact.toM2Coordinates());
 465                                 if (!mergedProps.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 466                                         // use file name as symbolic name
 467                                         String symbolicName = p.getFileName().toString();
 468                                         symbolicName = symbolicName.substring(0, symbolicName.length() - ".bnd".length());
 469                                         mergedProps.put(BUNDLE_SYMBOLICNAME.toString(), symbolicName);
 470                                 }
 471
 472                                 // download
 473                                 Path downloaded = downloadMaven(mergedProps, artifact);
 474
 475                                 boolean doNotModify = Boolean.parseBoolean(
 476                                                 mergedProps.getOrDefault(ARGEO_ORIGIN_DO_NOT_MODIFY.toString(), "false").toString());
 477                                 if (doNotModify) {
 478                                         processNotModified(targetCategoryBase, downloaded, mergedProps, artifact);
 479                                 } else {
 480                                         A2Origin origin = new A2Origin();
 481                                         Path targetBundleDir = processBndJar(downloaded, targetCategoryBase, mergedProps, artifact, origin);
 482                                         downloadAndProcessM2Sources(mergedProps, artifact, targetBundleDir, false, false);
 483                                         createJar(targetBundleDir, origin);
 484                                 }
 485                         }
 486                 } catch (IOException e) {
 487                         throw new RuntimeException("Cannot process " + duDir, e);
 488                 }
 489         }
 490
 491         /** Merge multiple Maven artifacts. */
 492         void mergeM2Artifacts(Path mergeBnd) throws IOException {
 493                 Path duDir = mergeBnd.getParent();
 494                 String category = duDir.getParent().getFileName().toString();
 495                 Path targetCategoryBase = a2Base.resolve(category);
 496
 497                 Properties mergeProps = new Properties();
 498                 // first, load common properties
 499                 Path commonBnd = duDir.resolve(COMMON_BND);
 500                 if (Files.exists(commonBnd))
 501                         try (InputStream in = Files.newInputStream(commonBnd)) {
 502                                 mergeProps.load(in);
 503                         }
 504                 // then, the merge properties themselves
 505                 try (InputStream in = Files.newInputStream(mergeBnd)) {
 506                         mergeProps.load(in);
 507                 }
 508
 509                 String m2Version = mergeProps.getProperty(ARGEO_ORIGIN_M2.toString());
 510                 if (m2Version == null) {
 511                         logger.log(WARNING, "Ignoring merging in " + duDir + " as it is not an M2-based distribution unit");
 512                         return;// ignore, this is probably an Eclipse archive
 513                 }
 514                 if (!m2Version.startsWith(":")) {
 515                         throw new IllegalStateException("Only the M2 version can be specified: " + m2Version);
 516                 }
 517                 m2Version = m2Version.substring(1);
 518                 mergeProps.put(BUNDLE_VERSION.toString(), m2Version);
 519
 520                 String artifactsStr = mergeProps.getProperty(ARGEO_ORIGIN_M2_MERGE.toString());
 521                 if (artifactsStr == null)
 522                         throw new IllegalArgumentException(mergeBnd + ": " + ARGEO_ORIGIN_M2_MERGE + " must be set");
 523
 524                 String bundleSymbolicName = mergeProps.getProperty(BUNDLE_SYMBOLICNAME.toString());
 525                 if (bundleSymbolicName == null)
 526                         throw new IllegalArgumentException("Bundle-SymbolicName must be set in " + mergeBnd);
 527                 CategoryNameVersion nameVersion = new M2Artifact(category + ":" + bundleSymbolicName + ":" + m2Version);
 528
 529                 A2Origin origin = new A2Origin();
 530                 Path bundleDir = targetCategoryBase.resolve(bundleSymbolicName + "." + nameVersion.getBranch());
 531
 532                 StringJoiner originDesc = new StringJoiner(",");
 533                 String[] artifacts = artifactsStr.split(",");
 534                 artifacts: for (String str : artifacts) {
 535                         String m2Coordinates = str.trim();
 536                         if ("".equals(m2Coordinates))
 537                                 continue artifacts;
 538                         M2Artifact artifact = new M2Artifact(m2Coordinates.trim());
 539                         if (artifact.getVersion() == null)
 540                                 artifact.setVersion(m2Version);
 541                         originDesc.add(artifact.toString());
 542                         Path downloaded = downloadMaven(mergeProps, artifact);
 543                         JarEntry entry;
 544                         try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(downloaded), false)) {
 545                                 entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 546                                         if (entry.isDirectory())
 547                                                 continue entries;
 548                                         if (entry.getName().endsWith(".RSA") || entry.getName().endsWith(".DSA")
 549                                                         || entry.getName().endsWith(".SF")) {
 550                                                 origin.deleted.add("cryptographic signatures from " + artifact);
 551                                                 continue entries;
 552                                         }
 553                                         if (entry.getName().endsWith("module-info.class")) { // skip Java 9 module info
 554                                                 origin.deleted.add("Java module information (module-info.class) from " + artifact);
 555                                                 continue entries;
 556                                         }
 557                                         if (entry.getName().startsWith("META-INF/versions/")) { // skip multi-version
 558                                                 origin.deleted.add("additional Java versions (META-INF/versions) from " + artifact);
 559                                                 continue entries;
 560                                         }
 561                                         if (entry.getName().startsWith("META-INF/maven/")) {
 562                                                 origin.deleted.add("Maven information (META-INF/maven) from " + artifact);
 563                                                 continue entries;
 564                                         }
 565                                         if (entry.getName().startsWith(".cache/")) { // Apache SSHD
 566                                                 origin.deleted.add("cache directory (.cache) from " + artifact);
 567                                                 continue entries;
 568                                         }
 569                                         if (entry.getName().equals("META-INF/DEPENDENCIES")) {
 570                                                 origin.deleted.add("Dependencies (META-INF/DEPENDENCIES) from " + artifact);
 571                                                 continue entries;
 572                                         }
 573                                         if (entry.getName().equals("META-INF/MANIFEST.MF")) {
 574                                                 Path originalManifest = bundleDir.resolve(ARGEO_ORIGIN).resolve(artifact.getGroupId())
 575                                                                 .resolve(artifact.getArtifactId()).resolve("MANIFEST.MF");
 576                                                 Files.createDirectories(originalManifest.getParent());
 577                                                 try (OutputStream out = Files.newOutputStream(originalManifest)) {
 578                                                         Files.copy(jarIn, originalManifest);
 579                                                 }
 580                                                 origin.added.add(
 581                                                                 "original MANIFEST (" + bundleDir.relativize(originalManifest) + ") from " + artifact);
 582                                                 continue entries;
 583                                         }
 584
 585                                         if (entry.getName().endsWith("NOTICE") || entry.getName().endsWith("NOTICE.txt")
 586                                                         || entry.getName().endsWith("NOTICE.md") || entry.getName().endsWith("LICENSE")
 587                                                         || entry.getName().endsWith("LICENSE.md") || entry.getName().endsWith("LICENSE-notice.md")
 588                                                         || entry.getName().endsWith("COPYING") || entry.getName().endsWith("COPYING.LESSER")) {
 589                                                 Path artifactOriginDir = bundleDir.resolve(ARGEO_ORIGIN).resolve(artifact.getGroupId())
 590                                                                 .resolve(artifact.getArtifactId());
 591                                                 Path target = artifactOriginDir.resolve(entry.getName());
 592                                                 Files.createDirectories(target.getParent());
 593                                                 Files.copy(jarIn, target);
 594                                                 origin.moved.add(entry.getName() + " in " + artifact + " to " + bundleDir.relativize(target));
 595                                                 continue entries;
 596                                         }
 597                                         Path target = bundleDir.resolve(entry.getName());
 598                                         Files.createDirectories(target.getParent());
 599                                         if (!Files.exists(target)) {
 600                                                 Files.copy(jarIn, target);
 601                                         } else {
 602                                                 if (entry.getName().startsWith("META-INF/services/")) {
 603                                                         try (OutputStream out = Files.newOutputStream(target, StandardOpenOption.APPEND)) {
 604                                                                 out.write("\n".getBytes());
 605                                                                 jarIn.transferTo(out);
 606                                                                 logger.log(DEBUG, artifact.getArtifactId() + " - Appended " + entry.getName());
 607                                                         }
 608                                                         origin.modified.add(entry.getName() + ", merging from " + artifact);
 609                                                 } else if (entry.getName().startsWith("org/apache/batik/")) {
 610                                                         logger.log(TRACE, "Skip " + entry.getName());
 611                                                         continue entries;
 612                                                 } else if (entry.getName().startsWith("META-INF/NOTICE")) {
 613                                                         logger.log(WARNING, "Skip " + entry.getName() + " from " + artifact);
 614                                                         // TODO merge them?
 615                                                         continue entries;
 616                                                 } else {
 617                                                         throw new IllegalStateException("File " + target + " from " + artifact + " already exists");
 618                                                 }
 619                                         }
 620                                         logger.log(TRACE, () -> "Copied " + target);
 621                                 }
 622                         }
 623                         origin.added.add("binary content of " + artifact);
 624
 625                         // process sources
 626                         downloadAndProcessM2Sources(mergeProps, artifact, bundleDir, true, false);
 627                 }
 628
 629                 // additional service files
 630                 Path servicesDir = duDir.resolve("services");
 631                 if (Files.exists(servicesDir)) {
 632                         for (Path p : Files.newDirectoryStream(servicesDir)) {
 633                                 Path target = bundleDir.resolve("META-INF/services/").resolve(p.getFileName());
 634                                 try (InputStream in = Files.newInputStream(p);
 635                                                 OutputStream out = Files.newOutputStream(target, StandardOpenOption.APPEND);) {
 636                                         out.write("\n".getBytes());
 637                                         in.transferTo(out);
 638                                         logger.log(DEBUG, "Appended " + p);
 639                                 }
 640                                 origin.added.add(bundleDir.relativize(target).toString());
 641                         }
 642                 }
 643
 644                 // BND analysis
 645                 Map<String, String> entries = new TreeMap<>();
 646                 try (Analyzer bndAnalyzer = new Analyzer()) {
 647                         bndAnalyzer.setProperties(mergeProps);
 648                         Jar jar = new Jar(bundleDir.toFile());
 649                         bndAnalyzer.setJar(jar);
 650                         Manifest manifest = bndAnalyzer.calcManifest();
 651
 652                         keys: for (Object key : manifest.getMainAttributes().keySet()) {
 653                                 Object value = manifest.getMainAttributes().get(key);
 654
 655                                 switch (key.toString()) {
 656                                 case "Tool":
 657                                 case "Bnd-LastModified":
 658                                 case "Created-By":
 659                                         continue keys;
 660                                 }
 661                                 if ("Require-Capability".equals(key.toString())
 662                                                 && value.toString().equals("osgi.ee;filter:=\"(&(osgi.ee=JavaSE)(version=1.1))\"")) {
 663                                         origin.deleted.add("MANIFEST header " + key);
 664                                         continue keys;// hack for very old classes
 665                                 }
 666                                 entries.put(key.toString(), value.toString());
 667                         }
 668                 } catch (Exception e) {
 669                         throw new RuntimeException("Cannot process " + mergeBnd, e);
 670                 }
 671
 672                 Manifest manifest = new Manifest();
 673                 Path manifestPath = bundleDir.resolve("META-INF/MANIFEST.MF");
 674                 Files.createDirectories(manifestPath.getParent());
 675                 for (String key : entries.keySet()) {
 676                         String value = entries.get(key);
 677                         manifest.getMainAttributes().putValue(key, value);
 678                 }
 679                 manifest.getMainAttributes().putValue(ARGEO_ORIGIN_M2.toString(), originDesc.toString());
 680
 681                 processLicense(bundleDir, manifest);
 682
 683                 // write MANIFEST
 684                 try (OutputStream out = Files.newOutputStream(manifestPath)) {
 685                         manifest.write(out);
 686                 }
 687                 createJar(bundleDir, origin);
 688         }
 689
 690         /** Generates MANIFEST using BND. */
 691         Path processBndJar(Path downloaded, Path targetCategoryBase, Properties fileProps, M2Artifact artifact,
 692                         A2Origin origin) {
 693                 try {
 694                         Map<String, String> additionalEntries = new TreeMap<>();
 695                         boolean doNotModifyManifest = Boolean.parseBoolean(
 696                                         fileProps.getOrDefault(ARGEO_ORIGIN_NO_METADATA_GENERATION.toString(), "false").toString());
 697
 698                         // Note: we always force the symbolic name
 699                         if (doNotModifyManifest) {
 700                                 for (Object key : fileProps.keySet()) {
 701                                         String value = fileProps.getProperty(key.toString());
 702                                         additionalEntries.put(key.toString(), value);
 703                                 }
 704                         } else {
 705                                 if (artifact != null) {
 706                                         if (!fileProps.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
 707                                                 fileProps.put(BUNDLE_SYMBOLICNAME.toString(), artifact.getName());
 708                                         }
 709                                         if (!fileProps.containsKey(BUNDLE_VERSION.toString())) {
 710                                                 fileProps.put(BUNDLE_VERSION.toString(), artifact.getVersion());
 711                                         }
 712                                 }
 713
 714                                 if (!fileProps.containsKey(EXPORT_PACKAGE.toString())) {
 715                                         fileProps.put(EXPORT_PACKAGE.toString(),
 716                                                         "*;version=\"" + fileProps.getProperty(BUNDLE_VERSION.toString()) + "\"");
 717                                 }
 718
 719                                 // BND analysis
 720                                 try (Analyzer bndAnalyzer = new Analyzer()) {
 721                                         bndAnalyzer.setProperties(fileProps);
 722                                         Jar jar = new Jar(downloaded.toFile());
 723                                         bndAnalyzer.setJar(jar);
 724                                         Manifest manifest = bndAnalyzer.calcManifest();
 725
 726                                         keys: for (Object key : manifest.getMainAttributes().keySet()) {
 727                                                 Object value = manifest.getMainAttributes().get(key);
 728
 729                                                 switch (key.toString()) {
 730                                                 case "Tool":
 731                                                 case "Bnd-LastModified":
 732                                                 case "Created-By":
 733                                                         continue keys;
 734                                                 }
 735                                                 if ("Require-Capability".equals(key.toString())
 736                                                                 && value.toString().equals("osgi.ee;filter:=\"(&(osgi.ee=JavaSE)(version=1.1))\"")) {
 737                                                         origin.deleted.add("MANIFEST header " + key);
 738                                                         continue keys;// !! hack for very old classes
 739                                                 }
 740                                                 additionalEntries.put(key.toString(), value.toString());
 741                                         }
 742                                 }
 743                         }
 744                         Path targetBundleDir = processBundleJar(downloaded, targetCategoryBase, additionalEntries, origin);
 745                         logger.log(DEBUG, () -> "Processed " + downloaded);
 746                         return targetBundleDir;
 747                 } catch (Exception e) {
 748                         throw new RuntimeException("Cannot BND process " + downloaded, e);
 749                 }
 750
 751         }
 752
 753         /** Process an artifact that should not be modified. */
 754         void processNotModified(Path targetCategoryBase, Path downloaded, Properties fileProps, M2Artifact artifact)
 755                         throws IOException {
 756                 // Some proprietary or signed artifacts do not allow any modification
 757                 // When releasing (with separate sources), we just copy it
 758                 Path unmodifiedTarget = targetCategoryBase
 759                                 .resolve(fileProps.getProperty(BUNDLE_SYMBOLICNAME.toString()) + "." + artifact.getBranch() + ".jar");
 760                 Files.createDirectories(unmodifiedTarget.getParent());
 761                 Files.copy(downloaded, unmodifiedTarget, StandardCopyOption.REPLACE_EXISTING);
 762                 Path bundleDir = targetCategoryBase
 763                                 .resolve(fileProps.getProperty(BUNDLE_SYMBOLICNAME.toString()) + "." + artifact.getBranch());
 764                 downloadAndProcessM2Sources(fileProps, artifact, bundleDir, false, true);
 765                 Manifest manifest;
 766                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(unmodifiedTarget))) {
 767                         manifest = jarIn.getManifest();
 768                 }
 769                 createSourceJar(bundleDir, manifest, fileProps);
 770         }
 771
 772         /** Download and integrates sources for a single Maven artifact. */
 773         void downloadAndProcessM2Sources(Properties props, M2Artifact artifact, Path targetBundleDir, boolean merging,
 774                         boolean unmodified) throws IOException {
 775                 try {
 776                         String repoStr = props.containsKey(ARGEO_ORIGIN_M2_REPO.toString())
 777                                         ? props.getProperty(ARGEO_ORIGIN_M2_REPO.toString())
 778                                         : null;
 779                         String alternateUri = props.getProperty(ARGEO_ORIGIN_SOURCES_URI.toString());
 780                         M2Artifact sourcesArtifact = new M2Artifact(artifact.toM2Coordinates(), "sources");
 781                         URI sourcesUrl = alternateUri != null ? new URI(alternateUri)
 782                                         : M2ConventionsUtils.mavenRepoUrl(repoStr, sourcesArtifact);
 783                         Path sourcesDownloaded = downloadMaven(sourcesUrl, sourcesArtifact);
 784                         processM2SourceJar(sourcesDownloaded, targetBundleDir, merging ? artifact : null, unmodified);
 785                         logger.log(TRACE, () -> "Processed source " + sourcesDownloaded);
 786                 } catch (Exception e) {
 787                         logger.log(ERROR, () -> "Cannot download source for  " + artifact);
 788                 }
 789
 790         }
 791
 792         /** Integrate sources from a downloaded jar file. */
 793         void processM2SourceJar(Path file, Path bundleDir, M2Artifact mergingFrom, boolean unmodified) throws IOException {
 794                 A2Origin origin = new A2Origin();
 795                 Path sourceDir = separateSources || unmodified ? bundleDir.getParent().resolve(bundleDir.toString() + ".src")
 796                                 : bundleDir.resolve("OSGI-OPT/src");
 797                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 798
 799                         String mergingMsg = "";
 800                         if (mergingFrom != null)
 801                                 mergingMsg = " of " + mergingFrom;
 802
 803                         Files.createDirectories(sourceDir);
 804                         JarEntry entry;
 805                         entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 806                                 String relPath = entry.getName();
 807                                 if (entry.isDirectory())
 808                                         continue entries;
 809                                 if (entry.getName().equals("META-INF/MANIFEST.MF")) {// skip META-INF entries
 810                                         origin.deleted.add("MANIFEST.MF from the sources" + mergingMsg);
 811                                         continue entries;
 812                                 }
 813                                 if (!unmodified) {
 814                                         if (entry.getName().startsWith("module-info.java")) {// skip Java module information
 815                                                 origin.deleted.add("Java module information from the sources (module-info.java)" + mergingMsg);
 816                                                 continue entries;
 817                                         }
 818                                         if (entry.getName().startsWith("/")) { // absolute paths
 819                                                 int metaInfIndex = entry.getName().indexOf("META-INF");
 820                                                 if (metaInfIndex >= 0) {
 821                                                         relPath = entry.getName().substring(metaInfIndex);
 822                                                         origin.moved.add(" to " + relPath + " entry with absolute path " + entry.getName());
 823                                                 } else {
 824                                                         logger.log(WARNING, entry.getName() + " has an absolute path");
 825                                                         origin.deleted.add(entry.getName() + " from the sources" + mergingMsg);
 826                                                 }
 827                                                 continue entries;
 828                                         }
 829                                 }
 830                                 Path target = sourceDir.resolve(relPath);
 831                                 Files.createDirectories(target.getParent());
 832                                 if (!Files.exists(target)) {
 833                                         Files.copy(jarIn, target);
 834                                         logger.log(TRACE, () -> "Copied source " + target);
 835                                 } else {
 836                                         logger.log(TRACE, () -> target + " already exists, skipping...");
 837                                 }
 838                         }
 839                 }
 840                 // write the changes
 841                 if (separateSources || unmodified) {
 842                         origin.appendChanges(sourceDir);
 843                 } else {
 844                         origin.added.add("source code under OSGI-OPT/src");
 845                         origin.appendChanges(bundleDir);
 846                 }
 847         }
 848
 849         /** Download a Maven artifact. */
 850         Path downloadMaven(Properties props, M2Artifact artifact) throws IOException {
 851                 String repoStr = props.containsKey(ARGEO_ORIGIN_M2_REPO.toString())
 852                                 ? props.getProperty(ARGEO_ORIGIN_M2_REPO.toString())
 853                                 : null;
 854                 String alternateUri = props.getProperty(ARGEO_ORIGIN_URI.toString());
 855                 try {
 856                         URI uri = alternateUri != null ? new URI(alternateUri) : M2ConventionsUtils.mavenRepoUrl(repoStr, artifact);
 857                         return downloadMaven(uri, artifact);
 858                 } catch (URISyntaxException e) {
 859                         throw new IllegalArgumentException("Wrong aritfact URI", e);
 860                 }
 861         }
 862
 863         /** Download a Maven artifact. */
 864         Path downloadMaven(URI uri, M2Artifact artifact) throws IOException {
 865                 return download(uri, mavenBase, M2ConventionsUtils.artifactPath("", artifact));
 866         }
 867
 868         /*
 869          * ECLIPSE ORIGIN
 870          */
 871         /** Process an archive in Eclipse format. */
 872         void processEclipseArchive(Path duDir) {
 873                 try {
 874                         Path categoryRelativePath = descriptorsBase.relativize(duDir.getParent());
 875                         Path targetCategoryBase = a2Base.resolve(categoryRelativePath);
 876                         Files.createDirectories(targetCategoryBase);
 877                         // first delete all directories from previous builds
 878                         for (Path dir : Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p)))
 879                                 deleteDirectory(dir);
 880
 881                         Files.createDirectories(originBase);
 882
 883                         Path commonBnd = duDir.resolve(COMMON_BND);
 884                         Properties commonProps = new Properties();
 885                         try (InputStream in = Files.newInputStream(commonBnd)) {
 886                                 commonProps.load(in);
 887                         }
 888                         String url = commonProps.getProperty(ARGEO_ORIGIN_URI.toString());
 889                         if (url == null) {
 890                                 url = uris.getProperty(duDir.getFileName().toString());
 891                                 if (url == null)
 892                                         throw new IllegalStateException("No url available for " + duDir);
 893                                 commonProps.put(ARGEO_ORIGIN_URI.toString(), url);
 894                         }
 895                         Path downloaded = tryDownloadArchive(url, originBase);
 896
 897                         FileSystem zipFs = FileSystems.newFileSystem(downloaded, (ClassLoader) null);
 898
 899                         // filters
 900                         List<PathMatcher> includeMatchers = new ArrayList<>();
 901                         Properties includes = new Properties();
 902                         try (InputStream in = Files.newInputStream(duDir.resolve("includes.properties"))) {
 903                                 includes.load(in);
 904                         }
 905                         for (Object pattern : includes.keySet()) {
 906                                 PathMatcher pathMatcher = zipFs.getPathMatcher("glob:/" + pattern);
 907                                 includeMatchers.add(pathMatcher);
 908                         }
 909
 910                         List<PathMatcher> excludeMatchers = new ArrayList<>();
 911                         Path excludeFile = duDir.resolve("excludes.properties");
 912                         if (Files.exists(excludeFile)) {
 913                                 Properties excludes = new Properties();
 914                                 try (InputStream in = Files.newInputStream(excludeFile)) {
 915                                         excludes.load(in);
 916                                 }
 917                                 for (Object pattern : excludes.keySet()) {
 918                                         PathMatcher pathMatcher = zipFs.getPathMatcher("glob:/" + pattern);
 919                                         excludeMatchers.add(pathMatcher);
 920                                 }
 921                         }
 922
 923                         // keys are the bundle directories
 924                         Map<Path, A2Origin> origins = new HashMap<>();
 925                         Files.walkFileTree(zipFs.getRootDirectories().iterator().next(), new SimpleFileVisitor<Path>() {
 926
 927                                 @Override
 928                                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
 929                                         includeMatchers: for (PathMatcher includeMatcher : includeMatchers) {
 930                                                 if (includeMatcher.matches(file)) {
 931                                                         for (PathMatcher excludeMatcher : excludeMatchers) {
 932                                                                 if (excludeMatcher.matches(file)) {
 933                                                                         logger.log(TRACE, "Skipping excluded " + file);
 934                                                                         return FileVisitResult.CONTINUE;
 935                                                                 }
 936                                                         }
 937                                                         if (file.getFileName().toString().contains(".source_")) {
 938                                                                 processEclipseSourceJar(file, targetCategoryBase);
 939                                                                 logger.log(DEBUG, () -> "Processed source " + file);
 940                                                         } else {
 941                                                                 Map<String, String> map = new HashMap<>();
 942                                                                 for (Object key : commonProps.keySet())
 943                                                                         map.put(key.toString(), commonProps.getProperty(key.toString()));
 944                                                                 A2Origin origin = new A2Origin();
 945                                                                 Path bundleDir = processBundleJar(file, targetCategoryBase, map, origin);
 946                                                                 if (bundleDir == null) {
 947                                                                         logger.log(WARNING, "No bundle dir created for " + file + ", skipping...");
 948                                                                         return FileVisitResult.CONTINUE;
 949                                                                 }
 950                                                                 origins.put(bundleDir, origin);
 951                                                                 logger.log(DEBUG, () -> "Processed " + file);
 952                                                         }
 953                                                         break includeMatchers;
 954                                                 }
 955                                         }
 956                                         return FileVisitResult.CONTINUE;
 957                                 }
 958                         });
 959
 960                         DirectoryStream<Path> dirs = Files.newDirectoryStream(targetCategoryBase, (p) -> Files.isDirectory(p)
 961                                         && p.getFileName().toString().indexOf('.') >= 0 && !p.getFileName().toString().endsWith(".src"));
 962                         for (Path bundleDir : dirs) {
 963                                 A2Origin origin = origins.get(bundleDir);
 964                                 Objects.requireNonNull(origin, "No A2 origin found for " + bundleDir);
 965                                 createJar(bundleDir, origin);
 966                         }
 967                 } catch (IOException e) {
 968                         throw new RuntimeException("Cannot process " + duDir, e);
 969                 }
 970
 971         }
 972
 973         /** Process sources in Eclipse format. */
 974         void processEclipseSourceJar(Path file, Path targetBase) throws IOException {
 975                 try {
 976                         A2Origin origin = new A2Origin();
 977                         Path bundleDir;
 978                         try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
 979                                 Manifest manifest = jarIn.getManifest();
 980
 981                                 String[] relatedBundle = manifest.getMainAttributes().getValue(ECLIPSE_SOURCE_BUNDLE.toString())
 982                                                 .split(";");
 983                                 String version = relatedBundle[1].substring("version=\"".length());
 984                                 version = version.substring(0, version.length() - 1);
 985                                 NameVersion nameVersion = new NameVersion(relatedBundle[0], version);
 986                                 bundleDir = targetBase.resolve(nameVersion.getName() + "." + nameVersion.getBranch());
 987
 988                                 Path sourceDir = separateSources ? bundleDir.getParent().resolve(bundleDir.toString() + ".src")
 989                                                 : bundleDir.resolve("OSGI-OPT/src");
 990
 991                                 Files.createDirectories(sourceDir);
 992                                 JarEntry entry;
 993                                 entries: while ((entry = jarIn.getNextJarEntry()) != null) {
 994                                         if (entry.isDirectory())
 995                                                 continue entries;
 996                                         if (entry.getName().startsWith("META-INF"))// skip META-INF entries
 997                                                 continue entries;
 998                                         Path target = sourceDir.resolve(entry.getName());
 999                                         Files.createDirectories(target.getParent());
1000                                         Files.copy(jarIn, target);
1001                                         logger.log(TRACE, () -> "Copied source " + target);
1002                                 }
1003
1004                                 // write the changes
1005                                 if (separateSources) {
1006                                         origin.appendChanges(sourceDir);
1007                                 } else {
1008                                         origin.added.add("source code under OSGI-OPT/src");
1009                                         origin.appendChanges(bundleDir);
1010                                 }
1011                         }
1012                 } catch (IOException e) {
1013                         throw new IllegalStateException("Cannot process " + file, e);
1014                 }
1015         }
1016
1017         /*
1018          * COMMON PROCESSING
1019          */
1020         /** Normalise a single (that is, non-merged) bundle. */
1021         Path processBundleJar(Path file, Path targetBase, Map<String, String> entries, A2Origin origin) throws IOException {
1022 //              boolean embed = Boolean.parseBoolean(entries.getOrDefault(ARGEO_ORIGIN_EMBED.toString(), "false").toString());
1023                 boolean doNotModify = Boolean.parseBoolean(
1024                                 entries.getOrDefault(ManifestHeader.ARGEO_ORIGIN_DO_NOT_MODIFY.toString(), "false").toString());
1025                 boolean keepModuleInfo = Boolean.parseBoolean(
1026                                 entries.getOrDefault(ManifestHeader.ARGEO_ORIGIN_KEEP_MODULE_INFO.toString(), "false").toString());
1027                 NameVersion nameVersion;
1028                 Path bundleDir;
1029                 // singleton
1030                 boolean isSingleton = false;
1031                 Manifest manifest;
1032                 Manifest sourceManifest;
1033                 try (JarInputStream jarIn = new JarInputStream(Files.newInputStream(file), false)) {
1034                         sourceManifest = jarIn.getManifest();
1035                         if (sourceManifest == null)
1036                                 logger.log(WARNING, file + " has no manifest");
1037                         manifest = sourceManifest != null ? new Manifest(sourceManifest) : new Manifest();
1038
1039                         String rawSourceSymbolicName = manifest.getMainAttributes().getValue(BUNDLE_SYMBOLICNAME.toString());
1040                         if (rawSourceSymbolicName != null) {
1041                                 // make sure there is no directive
1042                                 String[] arr = rawSourceSymbolicName.split(";");
1043                                 for (int i = 1; i < arr.length; i++) {
1044                                         if (arr[i].trim().equals("singleton:=true"))
1045                                                 isSingleton = true;
1046                                         logger.log(DEBUG, file.getFileName() + " is a singleton");
1047                                 }
1048                         }
1049                         // remove problematic entries in MANIFEST
1050                         manifest.getEntries().clear();
1051
1052                         String ourSymbolicName = entries.get(BUNDLE_SYMBOLICNAME.toString());
1053                         String ourVersion = entries.get(BUNDLE_VERSION.toString());
1054
1055                         if (ourSymbolicName != null && ourVersion != null) {
1056                                 nameVersion = new NameVersion(ourSymbolicName, ourVersion);
1057                         } else {
1058                                 nameVersion = nameVersionFromManifest(manifest);
1059                                 if (nameVersion == null)
1060                                         throw new IllegalStateException("Could not compute name/version from Manifest");
1061                                 if (ourVersion != null && !nameVersion.getVersion().equals(ourVersion)) {
1062                                         logger.log(WARNING,
1063                                                         "Original version is " + nameVersion.getVersion() + " while new version is " + ourVersion);
1064                                         entries.put(BUNDLE_VERSION.toString(), ourVersion);
1065                                 }
1066                                 if (ourSymbolicName != null) {
1067                                         // we always force our symbolic name
1068                                         nameVersion.setName(ourSymbolicName);
1069                                 }
1070                         }
1071
1072                         bundleDir = targetBase.resolve(nameVersion.getName() + "." + nameVersion.getBranch());
1073
1074                         // copy original MANIFEST
1075                         if (sourceManifest != null) {
1076                                 Path originalManifest = bundleDir.resolve(ARGEO_ORIGIN).resolve("MANIFEST.MF");
1077                                 Files.createDirectories(originalManifest.getParent());
1078                                 try (OutputStream out = Files.newOutputStream(originalManifest)) {
1079                                         sourceManifest.write(out);
1080                                 }
1081                                 origin.moved.add("original MANIFEST to " + bundleDir.relativize(originalManifest));
1082                         }
1083
1084                         // force Java 9 module name
1085                         if (!keepModuleInfo)
1086                                 entries.put(ManifestHeader.AUTOMATIC_MODULE_NAME.toString(), nameVersion.getName());
1087
1088                         boolean isNative = false;
1089                         String os = null;
1090                         String arch = null;
1091                         if (bundleDir.startsWith(a2LibBase)) {
1092                                 isNative = true;
1093                                 Path libRelativePath = a2LibBase.relativize(bundleDir);
1094                                 os = libRelativePath.getName(0).toString();
1095                                 arch = libRelativePath.getName(1).toString();
1096                         }
1097
1098                         // copy entries
1099                         JarEntry entry;
1100                         entries: while ((entry = jarIn.getNextJarEntry()) != null) {
1101                                 if (entry.isDirectory())
1102                                         continue entries;
1103                                 if (!doNotModify) {
1104                                         if (entry.getName().endsWith(".RSA") || entry.getName().endsWith(".DSA")
1105                                                         || entry.getName().endsWith(".SF")) {
1106                                                 origin.deleted.add("cryptographic signatures");
1107                                                 continue entries;
1108                                         }
1109                                         if (entry.getName().endsWith("module-info.class") && !keepModuleInfo) { // skip Java 9 module info
1110                                                 origin.deleted.add("Java module information (module-info.class)");
1111                                                 continue entries;
1112                                         }
1113                                         if (entry.getName().startsWith("META-INF/versions/")) { // skip multi-version
1114                                                 origin.deleted.add("additional Java versions (META-INF/versions)");
1115                                                 continue entries;
1116                                         }
1117                                         if (entry.getName().startsWith("META-INF/maven/")) {
1118                                                 origin.deleted.add("Maven information (META-INF/maven)");
1119                                                 continue entries;
1120                                         }
1121                                         // skip file system providers as they cause issues with native image
1122                                         if (entry.getName().startsWith("META-INF/services/java.nio.file.spi.FileSystemProvider")) {
1123                                                 origin.deleted
1124                                                                 .add("file system providers (META-INF/services/java.nio.file.spi.FileSystemProvider)");
1125                                                 continue entries;
1126                                         }
1127                                 }
1128                                 if (entry.getName().startsWith("OSGI-OPT/src/")) { // skip embedded sources
1129                                         origin.deleted.add("embedded sources");
1130                                         continue entries;
1131                                 }
1132                                 Path target = bundleDir.resolve(entry.getName());
1133                                 Files.createDirectories(target.getParent());
1134                                 Files.copy(jarIn, target);
1135
1136                                 // native libraries
1137                                 boolean removeDllFromJar = true;
1138                                 if (isNative && (entry.getName().endsWith(".so") || entry.getName().endsWith(".dll")
1139                                                 || entry.getName().endsWith(".jnilib") || entry.getName().endsWith(".a"))) {
1140                                         Path categoryDir = bundleDir.getParent();
1141                                         boolean copyDll = false;
1142                                         Path targetDll = categoryDir.resolve(bundleDir.relativize(target));
1143                                         if (nameVersion.getName().equals("com.sun.jna")) {
1144                                                 if (arch.equals("x86_64"))
1145                                                         arch = "x86-64";
1146                                                 if (os.equals("macosx"))
1147                                                         os = "darwin";
1148                                                 if (target.getParent().getFileName().toString().equals(os + "-" + arch)) {
1149                                                         copyDll = true;
1150                                                 }
1151                                                 targetDll = categoryDir.resolve(target.getFileName());
1152                                         } else {
1153                                                 copyDll = true;
1154                                         }
1155                                         if (copyDll) {
1156                                                 Files.createDirectories(targetDll.getParent());
1157                                                 if (Files.exists(targetDll))
1158                                                         Files.delete(targetDll);
1159                                                 Files.copy(target, targetDll);
1160                                         }
1161
1162                                         if (removeDllFromJar) {
1163                                                 Files.delete(target);
1164                                                 origin.deleted.add(bundleDir.relativize(target).toString());
1165                                         }
1166                                 }
1167                                 logger.log(TRACE, () -> "Copied " + target);
1168                         }
1169                 }
1170
1171                 // copy MANIFEST
1172                 Path manifestPath = bundleDir.resolve("META-INF/MANIFEST.MF");
1173                 Files.createDirectories(manifestPath.getParent());
1174
1175                 if (isSingleton && entries.containsKey(BUNDLE_SYMBOLICNAME.toString())) {
1176                         entries.put(BUNDLE_SYMBOLICNAME.toString(),
1177                                         entries.get(BUNDLE_SYMBOLICNAME.toString()) + ";singleton:=true");
1178                 }
1179
1180                 // Final MANIFEST decisions
1181                 // We also check the original OSGi metadata and compare with our changes
1182                 for (String key : entries.keySet()) {
1183                         String value = entries.get(key);
1184                         String previousValue = manifest.getMainAttributes().getValue(key);
1185                         boolean wasDifferent = previousValue != null && !previousValue.equals(value);
1186                         boolean keepPrevious = false;
1187                         if (wasDifferent) {
1188                                 if (SPDX_LICENSE_IDENTIFIER.toString().equals(key) && previousValue != null)
1189                                         keepPrevious = true;
1190                                 else if (BUNDLE_VERSION.toString().equals(key) && wasDifferent)
1191                                         if (previousValue.equals(value + ".0")) // typically a Maven first release
1192                                                 keepPrevious = true;
1193
1194                                 if (keepPrevious) {
1195                                         if (logger.isLoggable(DEBUG))
1196                                                 logger.log(DEBUG, file.getFileName() + ": " + key + " was NOT modified, value kept is "
1197                                                                 + previousValue + ", not overriden with " + value);
1198                                         value = previousValue;
1199                                 }
1200                         }
1201
1202                         manifest.getMainAttributes().putValue(key, value);
1203                         if (wasDifferent && !keepPrevious) {
1204                                 if (IMPORT_PACKAGE.toString().equals(key) || EXPORT_PACKAGE.toString().equals(key))
1205                                         logger.log(TRACE, () -> file.getFileName() + ": " + key + " was modified");
1206                                 else if (BUNDLE_SYMBOLICNAME.toString().equals(key) || AUTOMATIC_MODULE_NAME.toString().equals(key))
1207                                         logger.log(DEBUG,
1208                                                         file.getFileName() + ": " + key + " was " + previousValue + ", overridden with " + value);
1209                                 else
1210                                         logger.log(WARNING,
1211                                                         file.getFileName() + ": " + key + " was " + previousValue + ", overridden with " + value);
1212                                 origin.modified.add("MANIFEST header " + key);
1213                         }
1214
1215                         // !! hack to remove unresolvable
1216                         if (key.equals("Provide-Capability") || key.equals("Require-Capability"))
1217                                 if (nameVersion.getName().equals("osgi.core") || nameVersion.getName().equals("osgi.cmpn")) {
1218                                         manifest.getMainAttributes().remove(key);
1219                                         origin.deleted.add("MANIFEST header " + key);
1220                                 }
1221                 }
1222
1223                 // de-pollute MANIFEST
1224                 for (Iterator<Map.Entry<Object, Object>> manifestEntries = manifest.getMainAttributes().entrySet()
1225                                 .iterator(); manifestEntries.hasNext();) {
1226                         Map.Entry<Object, Object> manifestEntry = manifestEntries.next();
1227                         String key = manifestEntry.getKey().toString();
1228                         // TODO make it more generic
1229 //                      if (key.equals(REQUIRE_BUNDLE.toString()) && nameVersion.getName().equals("com.sun.jna.platform"))
1230 //                              manifestEntries.remove();
1231                         switch (key) {
1232                         case "Archiver-Version":
1233                         case "Build-By":
1234                         case "Created-By":
1235                         case "Originally-Created-By":
1236                         case "Tool":
1237                         case "Bnd-LastModified":
1238                                 manifestEntries.remove();
1239                                 origin.deleted.add("MANIFEST header " + manifestEntry.getKey());
1240                                 break;
1241                         default:
1242                                 if (sourceManifest != null && !sourceManifest.getMainAttributes().containsKey(manifestEntry.getKey()))
1243                                         origin.added.add("MANIFEST header " + manifestEntry.getKey());
1244                         }
1245                 }
1246
1247                 processLicense(bundleDir, manifest);
1248
1249                 origin.modified.add("MANIFEST (META-INF/MANIFEST.MF)");
1250                 // write the MANIFEST
1251                 try (OutputStream out = Files.newOutputStream(manifestPath)) {
1252                         manifest.write(out);
1253                 }
1254                 return bundleDir;
1255         }
1256
1257         /** Process SPDX license identifier. */
1258         void processLicense(Path bundleDir, Manifest manifest) {
1259                 String spdxLicenceId = manifest.getMainAttributes().getValue(SPDX_LICENSE_IDENTIFIER.toString());
1260                 String bundleLicense = manifest.getMainAttributes().getValue(BUNDLE_LICENSE.toString());
1261                 if (spdxLicenceId == null) {
1262                         logger.log(ERROR, bundleDir.getFileName() + ": " + SPDX_LICENSE_IDENTIFIER + " not available, "
1263                                         + BUNDLE_LICENSE + " is " + bundleLicense);
1264                 } else {
1265                         // only use the first licensing option
1266                         int orIndex = spdxLicenceId.indexOf(" OR ");
1267                         if (orIndex >= 0)
1268                                 spdxLicenceId = spdxLicenceId.substring(0, orIndex).trim();
1269
1270                         String bundleDirName = bundleDir.getFileName().toString();
1271                         // force licenses of some well-known components
1272                         // even if we say otherwise (typically because from an Eclipse archive)
1273                         if (bundleDirName.startsWith("org.apache."))
1274                                 spdxLicenceId = "Apache-2.0";
1275                         if (bundleDirName.startsWith("com.sun.jna."))
1276                                 spdxLicenceId = "Apache-2.0";
1277                         if (bundleDirName.startsWith("com.ibm.icu."))
1278                                 spdxLicenceId = "ICU";
1279                         if (bundleDirName.startsWith("javax.annotation."))
1280                                 spdxLicenceId = "GPL-2.0-only WITH Classpath-exception-2.0";
1281                         if (bundleDirName.startsWith("javax.inject."))
1282                                 spdxLicenceId = "Apache-2.0";
1283                         if (bundleDirName.startsWith("org.osgi."))
1284                                 spdxLicenceId = "Apache-2.0";
1285
1286                         manifest.getMainAttributes().putValue(SPDX_LICENSE_IDENTIFIER.toString(), spdxLicenceId);
1287                         if (!licensesUsed.containsKey(spdxLicenceId))
1288                                 licensesUsed.put(spdxLicenceId, new TreeSet<>());
1289                         licensesUsed.get(spdxLicenceId).add(bundleDir.getParent().getFileName() + "/" + bundleDir.getFileName());
1290                 }
1291         }
1292
1293         /*
1294          * UTILITIES
1295          */
1296         /** Recursively deletes a directory. */
1297         static void deleteDirectory(Path path) throws IOException {
1298                 if (!Files.exists(path))
1299                         return;
1300                 Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
1301                         @Override
1302                         public FileVisitResult postVisitDirectory(Path directory, IOException e) throws IOException {
1303                                 if (e != null)
1304                                         throw e;
1305                                 Files.delete(directory);
1306                                 return CONTINUE;
1307                         }
1308
1309                         @Override
1310                         public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
1311                                 Files.delete(file);
1312                                 return CONTINUE;
1313                         }
1314                 });
1315         }
1316
1317         /** Extract name/version from a MANIFEST. */
1318         NameVersion nameVersionFromManifest(Manifest manifest) {
1319                 Attributes attrs = manifest.getMainAttributes();
1320                 // symbolic name
1321                 String symbolicName = attrs.getValue(ManifestHeader.BUNDLE_SYMBOLICNAME.toString());
1322                 if (symbolicName == null)
1323                         return null;
1324                 // make sure there is no directive
1325                 symbolicName = symbolicName.split(";")[0];
1326
1327                 String version = attrs.getValue(ManifestHeader.BUNDLE_VERSION.toString());
1328                 return new NameVersion(symbolicName, version);
1329         }
1330
1331         /** Try to download from an URI. */
1332         Path tryDownloadArchive(String uriStr, Path dir) throws IOException {
1333                 // find mirror
1334                 List<String> urlBases = null;
1335                 String uriPrefix = null;
1336                 uriPrefixes: for (String uriPref : mirrors.keySet()) {
1337                         if (uriStr.startsWith(uriPref)) {
1338                                 if (mirrors.get(uriPref).size() > 0) {
1339                                         urlBases = mirrors.get(uriPref);
1340                                         uriPrefix = uriPref;
1341                                         break uriPrefixes;
1342                                 }
1343                         }
1344                 }
1345                 if (urlBases == null)
1346                         try {
1347                                 return downloadArchive(new URI(uriStr), dir);
1348                         } catch (FileNotFoundException | URISyntaxException e) {
1349                                 throw new FileNotFoundException("Cannot find " + uriStr);
1350                         }
1351
1352                 // try to download
1353                 for (String urlBase : urlBases) {
1354                         String relativePath = uriStr.substring(uriPrefix.length());
1355                         String uStr = urlBase + relativePath;
1356                         try {
1357                                 return downloadArchive(new URI(uStr), dir);
1358                         } catch (FileNotFoundException | URISyntaxException e) {
1359                                 logger.log(WARNING, "Cannot download " + uStr + ", trying another mirror");
1360                         }
1361                 }
1362                 throw new FileNotFoundException("Cannot find " + uriStr);
1363         }
1364
1365         /**
1366          * Effectively download an archive.
1367          */
1368         Path downloadArchive(URI uri, Path dir) throws IOException {
1369                 return download(uri, dir, (String) null);
1370         }
1371
1372         /**
1373          * Effectively download. Synchronised in order to avoid downloading twice in
1374          * parallel.
1375          */
1376         synchronized Path download(URI uri, Path dir, String name) throws IOException {
1377
1378                 Path dest;
1379                 if (name == null) {
1380                         // We use also use parent directory in case the archive itself has a fixed name
1381                         String[] segments = uri.getPath().split("/");
1382                         name = segments.length > 1 ? segments[segments.length - 2] + '-' + segments[segments.length - 1]
1383                                         : segments[segments.length - 1];
1384                 }
1385
1386                 dest = dir.resolve(name);
1387                 if (Files.exists(dest)) {
1388                         logger.log(TRACE, () -> "File " + dest + " already exists for " + uri + ", not downloading again");
1389                         return dest;
1390                 } else {
1391                         Files.createDirectories(dest.getParent());
1392                 }
1393
1394                 try (InputStream in = uri.toURL().openStream()) {
1395                         Files.copy(in, dest);
1396                         logger.log(DEBUG, () -> "Downloaded " + dest + " from " + uri);
1397                 }
1398                 return dest;
1399         }
1400
1401         /** Create a JAR file from a directory. */
1402         Path createJar(Path bundleDir, A2Origin origin) throws IOException {
1403                 Path manifestPath = bundleDir.resolve("META-INF/MANIFEST.MF");
1404                 Manifest manifest;
1405                 try (InputStream in = Files.newInputStream(manifestPath)) {
1406                         manifest = new Manifest(in);
1407                 }
1408                 // legal requirements
1409                 origin.appendChanges(bundleDir);
1410                 createReadMe(bundleDir, manifest);
1411
1412                 // create the jar
1413                 Path jarPath = bundleDir.getParent().resolve(bundleDir.getFileName() + ".jar");
1414                 try (JarOutputStream jarOut = new JarOutputStream(Files.newOutputStream(jarPath), manifest)) {
1415                         jarOut.setLevel(Deflater.DEFAULT_COMPRESSION);
1416                         Files.walkFileTree(bundleDir, new SimpleFileVisitor<Path>() {
1417
1418                                 @Override
1419                                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
1420                                         if (file.getFileName().toString().equals("MANIFEST.MF"))
1421                                                 return super.visitFile(file, attrs);
1422                                         JarEntry entry = new JarEntry(
1423                                                         bundleDir.relativize(file).toString().replace(File.separatorChar, '/'));
1424                                         jarOut.putNextEntry(entry);
1425                                         Files.copy(file, jarOut);
1426                                         return super.visitFile(file, attrs);
1427                                 }
1428
1429                         });
1430                 }
1431                 deleteDirectory(bundleDir);
1432
1433                 if (separateSources)
1434                         createSourceJar(bundleDir, manifest, null);
1435
1436                 return jarPath;
1437         }
1438
1439         /** Package sources separately, in the Eclipse-SourceBundle format. */
1440         void createSourceJar(Path bundleDir, Manifest manifest, Properties props) throws IOException {
1441                 boolean unmodified = props != null;
1442                 Path bundleCategoryDir = bundleDir.getParent();
1443                 Path sourceDir = bundleCategoryDir.resolve(bundleDir.toString() + ".src");
1444                 if (!Files.exists(sourceDir)) {
1445                         logger.log(WARNING, sourceDir + " does not exist, skipping...");
1446                         return;
1447                 }
1448
1449                 Path relPath = a2Base.relativize(bundleCategoryDir);
1450                 Path srcCategoryDir = a2SrcBase.resolve(relPath);
1451                 Path srcJarP = srcCategoryDir.resolve(sourceDir.getFileName() + ".jar");
1452                 Files.createDirectories(srcJarP.getParent());
1453
1454                 String bundleSymbolicName = manifest.getMainAttributes().getValue("Bundle-SymbolicName").toString();
1455                 // in case there are additional directives
1456                 bundleSymbolicName = bundleSymbolicName.split(";")[0];
1457                 Manifest srcManifest = new Manifest();
1458                 srcManifest.getMainAttributes().put(MANIFEST_VERSION, "1.0");
1459                 BUNDLE_SYMBOLICNAME.put(srcManifest, bundleSymbolicName + ".src");
1460                 BUNDLE_VERSION.put(srcManifest, BUNDLE_VERSION.get(manifest));
1461                 ECLIPSE_SOURCE_BUNDLE.put(srcManifest,
1462                                 bundleSymbolicName + ";version=\"" + BUNDLE_VERSION.get(manifest) + "\"");
1463
1464                 // metadata
1465                 createReadMe(sourceDir, unmodified ? props : manifest);
1466                 // create jar
1467                 try (JarOutputStream srcJarOut = new JarOutputStream(Files.newOutputStream(srcJarP), srcManifest)) {
1468                         // srcJarOut.setLevel(Deflater.BEST_COMPRESSION);
1469                         Files.walkFileTree(sourceDir, new SimpleFileVisitor<Path>() {
1470
1471                                 @Override
1472                                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
1473                                         if (file.getFileName().toString().equals("MANIFEST.MF"))
1474                                                 return super.visitFile(file, attrs);
1475                                         JarEntry entry = new JarEntry(
1476                                                         sourceDir.relativize(file).toString().replace(File.separatorChar, '/'));
1477                                         srcJarOut.putNextEntry(entry);
1478                                         Files.copy(file, srcJarOut);
1479                                         return super.visitFile(file, attrs);
1480                                 }
1481
1482                         });
1483                 }
1484                 deleteDirectory(sourceDir);
1485         }
1486
1487         /**
1488          * Generate a readme clarifying and prominently notifying of the repackaging and
1489          * modifications.
1490          */
1491         void createReadMe(Path jarDir, Object mapping) throws IOException {
1492                 // write repackaged README
1493                 try (BufferedWriter writer = Files.newBufferedWriter(jarDir.resolve(README_REPACKAGED))) {
1494                         boolean merged = ARGEO_ORIGIN_M2_MERGE.get(mapping) != null;
1495                         if (merged)
1496                                 writer.append("This component is a merging of third party components"
1497                                                 + " in order to comply with A2 packaging standards.\n");
1498                         else
1499                                 writer.append("This component is a repackaging of a third party component"
1500                                                 + " in order to comply with A2 packaging standards.\n");
1501
1502                         // license
1503                         String spdxLicenseId = SPDX_LICENSE_IDENTIFIER.get(mapping);
1504                         if (spdxLicenseId == null)
1505                                 throw new IllegalStateException("An SPDX license id must have beend defined at this stage.");
1506                         writer.append("\nIt is redistributed under the following license:\n\n");
1507                         writer.append("SPDX-Identifier: " + spdxLicenseId + "\n\n");
1508
1509                         if (!spdxLicenseId.startsWith("LicenseRef")) {// standard
1510                                 int withIndex = spdxLicenseId.indexOf(" WITH ");
1511                                 if (withIndex >= 0) {
1512                                         String simpleId = spdxLicenseId.substring(0, withIndex).trim();
1513                                         String exception = spdxLicenseId.substring(withIndex + " WITH ".length());
1514                                         writer.append("which are available here: https://spdx.org/licenses/" + simpleId
1515                                                         + "\nand here: https://spdx.org/licenses/" + exception + "\n");
1516                                 } else {
1517                                         writer.append("which is available here: https://spdx.org/licenses/" + spdxLicenseId + "\n");
1518                                 }
1519                         } else {
1520                                 String url = BUNDLE_LICENSE.get(mapping);
1521                                 if (url != null) {
1522                                         writer.write("which is available here: " + url + "\n");
1523                                 } else {
1524                                         logger.log(ERROR, "No licence URL for " + jarDir);
1525                                 }
1526                         }
1527
1528                         // origin
1529                         String originDesc = ARGEO_ORIGIN_URI.get(mapping);
1530                         if (originDesc != null)
1531                                 writer.append("\nThe original component comes from " + originDesc + ".\n");
1532                         else {
1533                                 String m2Repo = ARGEO_ORIGIN_M2_REPO.get(mapping);
1534                                 originDesc = ARGEO_ORIGIN_M2.get(mapping);
1535                                 if (originDesc != null)
1536                                         writer.append("\nThe original component has M2 coordinates:\n" + originDesc.replace(',', '\n')
1537                                                         + "\n" + (m2Repo != null ? "\nin M2 repository " + m2Repo + "\n" : ""));
1538                                 else
1539                                         logger.log(ERROR, "Cannot find origin information in " + jarDir);
1540                         }
1541                         String originSources = ARGEO_ORIGIN_SOURCES_URI.get(mapping);
1542                         if (originSources != null)
1543                                 writer.append("\nThe original sources come from " + originSources + ".\n");
1544
1545                         if (Files.exists(jarDir.resolve(CHANGES)))
1546                                 writer.append("\nA detailed list of changes is available under " + CHANGES + ".\n");
1547
1548                         if (!jarDir.getFileName().toString().endsWith(".src")) {// binary archive
1549                                 if (separateSources)
1550                                         writer.append("Corresponding sources are available in the related archive named "
1551                                                         + jarDir.toString() + ".src.jar.\n");
1552                                 else
1553                                         writer.append("Corresponding sources are available under OSGI-OPT/src.\n");
1554                         }
1555                 }
1556         }
1557
1558         /**
1559          * Gathers modifications performed on the original binaries and sources,
1560          * especially in order to comply with their license requirements.
1561          */
1562         class A2Origin {
1563                 A2Origin() {
1564
1565                 }
1566
1567                 Set<String> modified = new TreeSet<>();
1568                 Set<String> deleted = new TreeSet<>();
1569                 Set<String> added = new TreeSet<>();
1570                 Set<String> moved = new TreeSet<>();
1571
1572                 /** Append changes to the A2-ORIGIN/changes file. */
1573                 void appendChanges(Path baseDirectory) throws IOException {
1574                         if (modified.isEmpty() && deleted.isEmpty() && added.isEmpty() && moved.isEmpty())
1575                                 return; // no changes
1576                         Path changesFile = baseDirectory.resolve(CHANGES);
1577                         Files.createDirectories(changesFile.getParent());
1578                         try (BufferedWriter writer = Files.newBufferedWriter(changesFile, APPEND, CREATE)) {
1579                                 for (String msg : added)
1580                                         writer.write("- Added " + msg + ".\n");
1581                                 for (String msg : modified)
1582                                         writer.write("- Modified " + msg + ".\n");
1583                                 for (String msg : moved)
1584                                         writer.write("- Moved " + msg + ".\n");
1585                                 for (String msg : deleted)
1586                                         writer.write("- Deleted " + msg + ".\n");
1587                         }
1588                 }
1589         }
1590 }
1591
1592 /** Simple representation of an M2 artifact. */
1593 class M2Artifact extends CategoryNameVersion {
1594         private String classifier;
1595
1596         M2Artifact(String m2coordinates) {
1597                 this(m2coordinates, null);
1598         }
1599
1600         M2Artifact(String m2coordinates, String classifier) {
1601                 String[] parts = m2coordinates.split(":");
1602                 setCategory(parts[0]);
1603                 setName(parts[1]);
1604                 if (parts.length > 2) {
1605                         setVersion(parts[2]);
1606                 }
1607                 this.classifier = classifier;
1608         }
1609
1610         String getGroupId() {
1611                 return super.getCategory();
1612         }
1613
1614         String getArtifactId() {
1615                 return super.getName();
1616         }
1617
1618         String toM2Coordinates() {
1619                 return getCategory() + ":" + getName() + (getVersion() != null ? ":" + getVersion() : "");
1620         }
1621
1622         String getClassifier() {
1623                 return classifier != null ? classifier : "";
1624         }
1625
1626         String getExtension() {
1627                 return "jar";
1628         }
1629 }
1630
1631 /** Utilities around Maven (conventions based). */
1632 class M2ConventionsUtils {
1633         final static String MAVEN_CENTRAL_BASE_URL = "https://repo1.maven.org/maven2/";
1634
1635         /** The file name of this artifact when stored */
1636         static String artifactFileName(M2Artifact artifact) {
1637                 return artifact.getArtifactId() + '-' + artifact.getVersion()
1638                                 + (artifact.getClassifier().equals("") ? "" : '-' + artifact.getClassifier()) + '.'
1639                                 + artifact.getExtension();
1640         }
1641
1642         /** Absolute path to the file */
1643         static String artifactPath(String artifactBasePath, M2Artifact artifact) {
1644                 return artifactParentPath(artifactBasePath, artifact) + '/' + artifactFileName(artifact);
1645         }
1646
1647         /** Absolute path to the file */
1648         static String artifactUrl(String repoUrl, M2Artifact artifact) {
1649                 if (repoUrl.endsWith("/"))
1650                         return repoUrl + artifactPath("/", artifact).substring(1);
1651                 else
1652                         return repoUrl + artifactPath("/", artifact);
1653         }
1654
1655         /** Absolute path to the file */
1656         static URI mavenRepoUrl(String repoBase, M2Artifact artifact) throws URISyntaxException {
1657                 String uri = artifactUrl(repoBase == null ? MAVEN_CENTRAL_BASE_URL : repoBase, artifact);
1658                 return new URI(uri);
1659         }
1660
1661         /** Absolute path to the directories where the files will be stored */
1662         static String artifactParentPath(String artifactBasePath, M2Artifact artifact) {
1663                 return artifactBasePath + (artifactBasePath.endsWith("/") || artifactBasePath.equals("") ? "" : "/")
1664                                 + artifactParentPath(artifact);
1665         }
1666
1667         /** Relative path to the directories where the files will be stored */
1668         static String artifactParentPath(M2Artifact artifact) {
1669                 return artifact.getGroupId().replace('.', '/') + '/' + artifact.getArtifactId() + '/' + artifact.getVersion();
1670         }
1671
1672         /** Singleton */
1673         private M2ConventionsUtils() {
1674         }
1675 }
1676
1677 /** Combination of a category, a name and a version. */
1678 class CategoryNameVersion extends NameVersion {
1679         private String category;
1680
1681         CategoryNameVersion() {
1682         }
1683
1684         CategoryNameVersion(String category, String name, String version) {
1685                 super(name, version);
1686                 this.category = category;
1687         }
1688
1689         CategoryNameVersion(String category, NameVersion nameVersion) {
1690                 super(nameVersion);
1691                 this.category = category;
1692         }
1693
1694         String getCategory() {
1695                 return category;
1696         }
1697
1698         void setCategory(String category) {
1699                 this.category = category;
1700         }
1701
1702         @Override
1703         public String toString() {
1704                 return category + ":" + super.toString();
1705         }
1706
1707 }
1708
1709 /** Combination of a name and a version. */
1710 class NameVersion implements Comparable<NameVersion> {
1711         private String name;
1712         private String version;
1713
1714         NameVersion() {
1715         }
1716
1717         /** Interprets string in OSGi-like format my.module.name;version=0.0.0 */
1718         NameVersion(String nameVersion) {
1719                 int index = nameVersion.indexOf(";version=");
1720                 if (index < 0) {
1721                         setName(nameVersion);
1722                         setVersion(null);
1723                 } else {
1724                         setName(nameVersion.substring(0, index));
1725                         setVersion(nameVersion.substring(index + ";version=".length()));
1726                 }
1727         }
1728
1729         NameVersion(String name, String version) {
1730                 this.name = name;
1731                 this.version = version;
1732         }
1733
1734         NameVersion(NameVersion nameVersion) {
1735                 this.name = nameVersion.getName();
1736                 this.version = nameVersion.getVersion();
1737         }
1738
1739         String getName() {
1740                 return name;
1741         }
1742
1743         void setName(String name) {
1744                 this.name = name;
1745         }
1746
1747         String getVersion() {
1748                 return version;
1749         }
1750
1751         void setVersion(String version) {
1752                 this.version = version;
1753         }
1754
1755         String getBranch() {
1756                 String[] parts = getVersion().split("\\.");
1757                 if (parts.length < 2)
1758                         throw new IllegalStateException("Version " + getVersion() + " cannot be interpreted as branch.");
1759                 return parts[0] + "." + parts[1];
1760         }
1761
1762         @Override
1763         public boolean equals(Object obj) {
1764                 if (obj instanceof NameVersion) {
1765                         NameVersion nameVersion = (NameVersion) obj;
1766                         return name.equals(nameVersion.getName()) && version.equals(nameVersion.getVersion());
1767                 } else
1768                         return false;
1769         }
1770
1771         @Override
1772         public int hashCode() {
1773                 return name.hashCode();
1774         }
1775
1776         @Override
1777         public String toString() {
1778                 return name + ":" + version;
1779         }
1780
1781         public int compareTo(NameVersion o) {
1782                 if (o.getName().equals(name))
1783                         return version.compareTo(o.getVersion());
1784                 else
1785                         return name.compareTo(o.getName());
1786         }
1787 }