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