From aabcf5acff194b807c4d0bcf68425c3452c90339 Mon Sep 17 00:00:00 2001

From: Roland Grunberg <rgrunber@redhat.com>

Date: Fri, 12 Sep 2014 10:27:14 -0400

Subject: [PATCH] Add support for regenerating bundle versions for symlinks.

When the version field in a bundle info file corresponds to a bundle

whose location is a symbolic link, the correct version should be

regenerated every time, in case a change has occured.

Change-Id: Ifbe8efed2218a8a1250fd1ac59f0cdd6bdd5f309

---

 .../META-INF/MANIFEST.MF                           |   1 +

 .../utils/SimpleConfiguratorUtils.java             | 106 ++++++++++++++++++++-

 2 files changed, 106 insertions(+), 1 deletion(-)

diff --git rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/META-INF/MANIFEST.MF rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/META-INF/MANIFEST.MF

index d88d0a6..07fe087 100644

--- rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/META-INF/MANIFEST.MF

+++ rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/META-INF/MANIFEST.MF

@@ -9,6 +9,7 @@ Bundle-Activator: org.eclipse.equinox.internal.simpleconfigurator.Activator

 Bundle-ActivationPolicy: lazy

 Import-Package: org.eclipse.osgi.framework.console;version="1.0.0";resolution:=optional,

  org.eclipse.osgi.service.datalocation;version="1.0.0";resolution:=optional,

+ org.eclipse.osgi.util;version="1.1.0",

  org.osgi.framework;version="1.3.0",

  org.osgi.framework.namespace;version="1.0.0",

  org.osgi.framework.wiring;version="1.2.0",

diff --git rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/src/org/eclipse/equinox/internal/simpleconfigurator/utils/SimpleConfiguratorUtils.java rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/src/org/eclipse/equinox/internal/simpleconfigurator/utils/SimpleConfiguratorUtils.java

index ab69b88..d6bf121 100644

--- rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/src/org/eclipse/equinox/internal/simpleconfigurator/utils/SimpleConfiguratorUtils.java

+++ rt.equinox.p2/bundles/org.eclipse.equinox.simpleconfigurator/src/org/eclipse/equinox/internal/simpleconfigurator/utils/SimpleConfiguratorUtils.java

@@ -20,8 +20,12 @@

 import java.nio.file.Files;

 import java.nio.file.attribute.FileTime;

 import java.util.*;

+import java.util.jar.JarFile;

+import java.util.zip.ZipEntry;

+import java.util.zip.ZipFile;

 import org.eclipse.equinox.internal.simpleconfigurator.Activator;

-import org.osgi.framework.Version;

+import org.eclipse.osgi.util.ManifestElement;

+import org.osgi.framework.*;

 public class SimpleConfiguratorUtils {

@@ -282,6 +286,16 @@

 		String symbolicName = tok.nextToken().trim();

 		String version = tok.nextToken().trim();

 		URI location = parseLocation(tok.nextToken().trim());

+		if (base != null) {

+			URI absLoc = URIUtil.append(base, location.toString());

+			java.nio.file.Path absPath = java.nio.file.Paths.get(absLoc);

+			// Symbolic links may change outside Eclipse so regenerate proper bundle version.

+			if (Files.isSymbolicLink(absPath) && absPath.toFile().isFile()) {

+				// We can't depend on org.eclipse.equinox.internal.frameworkadmin.utils.Utils

+				Dictionary<String, String> manifest = getOSGiManifest(absLoc);

+				version = manifest.get(Constants.BUNDLE_VERSION);

+			}

+		}

 		int startLevel = Integer.parseInt(tok.nextToken().trim());

 		boolean markedAsStarted = Boolean.parseBoolean(tok.nextToken());

 		BundleInfo result = new BundleInfo(symbolicName, version, location, startLevel, markedAsStarted);

@@ -420,4 +434,93 @@

 		}

 		return lastModified;

 	}

+

+	private static Dictionary<String, String> getOSGiManifest(URI location) {

+		if (location == null)

+			return null;

+		// if we have a file-based URL that doesn't end in ".jar" then...

+		if (FILE_SCHEME.equals(location.getScheme()))

+			return basicLoadManifest(URIUtil.toFile(location));

+

+		try {

+			URL url = new URL("jar:" + location.toString() + "!/"); //$NON-NLS-1$//$NON-NLS-2$

+			JarURLConnection jarConnection = (JarURLConnection) url.openConnection();

+			ZipFile jar = jarConnection.getJarFile();

+

+			try {

+				ZipEntry entry = jar.getEntry(JarFile.MANIFEST_NAME);

+				if (entry == null)

+					return null;

+

+				Map<String, String> manifest = ManifestElement.parseBundleManifest(jar.getInputStream(entry), null);

+				return manifestToProperties(manifest);

+			} catch (BundleException e) {

+				return null;

+			} finally {

+				jar.close();

+			}

+		} catch (IOException e) {

+			if (System.getProperty("osgi.debug") != null) { //$NON-NLS-1$

+				System.err.println("location=" + location); //$NON-NLS-1$

+				e.printStackTrace();

+			}

+		}

+		return null;

+	}

+

+	private static Dictionary<String, String> basicLoadManifest(File bundleLocation) {

+		InputStream manifestStream = null;

+		ZipFile jarFile = null;

+		try {

+			try {

+				// Handle a JAR'd bundle

+				if (bundleLocation.isFile()) {

+					jarFile = new ZipFile(bundleLocation, ZipFile.OPEN_READ);

+					ZipEntry manifestEntry = jarFile.getEntry(JarFile.MANIFEST_NAME);

+					if (manifestEntry != null) {

+						manifestStream = jarFile.getInputStream(manifestEntry);

+					}

+				} else {

+					// we have a directory-based bundle

+					File bundleManifestFile = new File(bundleLocation, JarFile.MANIFEST_NAME);

+					if (bundleManifestFile.exists())

+						manifestStream = new BufferedInputStream(new FileInputStream(new File(bundleLocation, JarFile.MANIFEST_NAME)));

+				}

+			} catch (IOException e) {

+				//ignore

+			}

+

+			try {

+				Map<String, String> manifest = ManifestElement.parseBundleManifest(manifestStream, null);

+				return manifestToProperties(manifest);

+			} catch (IOException ioe) {

+				return null;

+			} catch (BundleException e) {

+				return null;

+			}

+		} finally {

+			try {

+				if (manifestStream != null)

+					manifestStream.close();

+			} catch (IOException e1) {

+				//Ignore

+			}

+			try {

+				if (jarFile != null)

+					jarFile.close();

+			} catch (IOException e2) {

+				//Ignore

+			}

+		}

+	}

+

+	private static Dictionary<String, String> manifestToProperties(Map<String, String> d) {

+		Iterator<String> iter = d.keySet().iterator();

+		Dictionary<String, String> result = new Hashtable<String, String>();

+		while (iter.hasNext()) {

+			String key = iter.next();

+			result.put(key, d.get(key));

+		}

+		return result;

+	}

 }