restored bash-based webdav mounting for OS X before 10.10 (issue #211 - to be tested)

main/commons/src/main/java/org/cryptomator/common/CommonsModule.java

@@ -0,0 +1,21 @@
+package org.cryptomator.common;
+
+import java.util.Comparator;
+
+import javax.inject.Named;
+import javax.inject.Singleton;
+
+import dagger.Module;
+import dagger.Provides;
+
+@Module
+public class CommonsModule {
+
+	@Provides
+	@Singleton
+	@Named("SemVer")
+	Comparator<String> providesSemVerComparator() {
+		return new SemVerComparator();
+	}
+
+}

main/commons/src/main/java/org/cryptomator/common/SemVerComparator.java

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+/*******************************************************************************
+ * Copyright (c) 2016 Sebastian Stenzel and others.
+ * This file is licensed under the terms of the MIT license.
+ * See the LICENSE.txt file for more info.
+ *
+ * Contributors:
+ *     Sebastian Stenzel - initial API and implementation
+ *******************************************************************************/
+package org.cryptomator.common;
+
+import java.util.Comparator;
+
+import org.apache.commons.lang3.StringUtils;
+
+public class SemVerComparator implements Comparator<String> {
+
+	@Override
+	public int compare(String version1, String version2) {
+		final String[] vComps1 = StringUtils.split(version1, '.');
+		final String[] vComps2 = StringUtils.split(version2, '.');
+		final int commonCompCount = Math.min(vComps1.length, vComps2.length);
+
+		for (int i = 0; i < commonCompCount; i++) {
+			int subversionComparisionResult = 0;
+			try {
+				final int v1 = Integer.parseInt(vComps1[i]);
+				final int v2 = Integer.parseInt(vComps2[i]);
+				subversionComparisionResult = v1 - v2;
+			} catch (NumberFormatException ex) {
+				// ok, lets compare this fragment lexicographically
+				subversionComparisionResult = vComps1[i].compareTo(vComps2[i]);
+			}
+			if (subversionComparisionResult != 0) {
+				return subversionComparisionResult;
+			}
+		}
+
+		// all in common so far? longest version string wins:
+		return vComps1.length - vComps2.length;
+	}
+
+}

main/commons/src/test/java/org/cryptomator/common/SemVerComparatorTest.java

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+/*******************************************************************************
+ * Copyright (c) 2016 Sebastian Stenzel and others.
+ * This file is licensed under the terms of the MIT license.
+ * See the LICENSE.txt file for more info.
+ *
+ * Contributors:
+ *     Sebastian Stenzel - initial API and implementation
+ *******************************************************************************/
+package org.cryptomator.common;
+
+import java.util.Comparator;
+
+import org.cryptomator.common.SemVerComparator;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class SemVerComparatorTest {
+
+	private final Comparator<String> semVerComparator = new SemVerComparator();
+
+	// equal versions
+
+	@Test
+	public void compareEqualVersions() {
+		final int comparisonResult = semVerComparator.compare("1.23.4", "1.23.4");
+		Assert.assertEquals(0, Integer.signum(comparisonResult));
+	}
+
+	// newer versions in first argument
+
+	@Test
+	public void compareHigherToLowerVersions() {
+		Assert.assertEquals(1, Integer.signum(semVerComparator.compare("1.23.5", "1.23.4")));
+		Assert.assertEquals(1, Integer.signum(semVerComparator.compare("1.24.4", "1.23.4")));
+		Assert.assertEquals(1, Integer.signum(semVerComparator.compare("1.23.4", "1.23")));
+		Assert.assertEquals(1, Integer.signum(semVerComparator.compare("1.23.4a", "1.23.4")));
+	}
+
+	// newer versions in second argument
+
+	@Test
+	public void compareLowerToHigherVersions() {
+		Assert.assertEquals(-1, Integer.signum(semVerComparator.compare("1.23.4", "1.23.5")));
+		Assert.assertEquals(-1, Integer.signum(semVerComparator.compare("1.23.4", "1.24.4")));
+		Assert.assertEquals(-1, Integer.signum(semVerComparator.compare("1.23", "1.23.4")));
+		Assert.assertEquals(-1, Integer.signum(semVerComparator.compare("1.23.4", "1.23.4a")));
+	}
+
+}