diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/SystemReaderTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/SystemReaderTest.java new file mode 100644 index 000000000..1fe1ba980 --- /dev/null +++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/util/SystemReaderTest.java @@ -0,0 +1,127 @@ +/* + * Copyright (C) 2019, Matthias Sohn + * and other copyright owners as documented in the project's IP log. + * + * This program and the accompanying materials are made available + * under the terms of the Eclipse Distribution License v1.0 which + * accompanies this distribution, is reproduced below, and is + * available at http://www.eclipse.org/org/documents/edl-v10.php + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * - Neither the name of the Eclipse Foundation, Inc. nor the + * names of its contributors may be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +package org.eclipse.jgit.util; + +import static org.junit.Assert.assertEquals; +import static org.mockito.Mockito.when; + +import java.nio.charset.StandardCharsets; +import java.nio.file.Files; +import java.nio.file.Path; + +import org.eclipse.jgit.storage.file.FileBasedConfig; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; +import org.junit.runner.RunWith; +import org.mockito.Mock; +import org.mockito.junit.MockitoJUnitRunner; + +@RunWith(MockitoJUnitRunner.class) +public class SystemReaderTest { + private Path trash; + + private Path mockSystemConfig; + + private Path mockUserConfig; + + @Mock + private FS fs; + + @Before + public void setup() throws Exception { + trash = Files.createTempDirectory("jgit_test"); + mockSystemConfig = trash.resolve("systemgitconfig"); + Files.write(mockSystemConfig, "[core]\n trustFolderStat = false\n" + .getBytes(StandardCharsets.UTF_8)); + mockUserConfig = trash.resolve(".gitconfig"); + Files.write(mockUserConfig, + "[core]\n bare = false\n".getBytes(StandardCharsets.UTF_8)); + when(fs.getGitSystemConfig()).thenReturn(mockSystemConfig.toFile()); + when(fs.userHome()).thenReturn(trash.toFile()); + SystemReader.setInstance(null); + } + + @After + public void teardown() throws Exception { + FileUtils.delete(trash.toFile(), FileUtils.RECURSIVE | FileUtils.RETRY); + } + + @Test + public void openSystemConfigReturnsDifferentInstances() throws Exception { + FileBasedConfig system1 = SystemReader.getInstance() + .openSystemConfig(null, fs); + system1.load(); + assertEquals("false", + system1.getString("core", null, "trustFolderStat")); + + FileBasedConfig system2 = SystemReader.getInstance() + .openSystemConfig(null, fs); + system2.load(); + assertEquals("false", + system2.getString("core", null, "trustFolderStat")); + + system1.setString("core", null, "trustFolderStat", "true"); + assertEquals("true", + system1.getString("core", null, "trustFolderStat")); + assertEquals("false", + system2.getString("core", null, "trustFolderStat")); + } + + @Test + public void openUserConfigReturnsDifferentInstances() throws Exception { + FileBasedConfig user1 = SystemReader.getInstance().openUserConfig(null, + fs); + user1.load(); + assertEquals("false", user1.getString("core", null, "bare")); + + FileBasedConfig user2 = SystemReader.getInstance().openUserConfig(null, + fs); + user2.load(); + assertEquals("false", user2.getString("core", null, "bare")); + + user1.setString("core", null, "bare", "true"); + assertEquals("true", user1.getString("core", null, "bare")); + assertEquals("false", user2.getString("core", null, "bare")); + } +} diff --git a/org.eclipse.jgit/.settings/.api_filters b/org.eclipse.jgit/.settings/.api_filters index cfc68662f..cbb9de113 100644 --- a/org.eclipse.jgit/.settings/.api_filters +++ b/org.eclipse.jgit/.settings/.api_filters @@ -233,18 +233,6 @@ - - - - - - - - - - - - diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java index 310bc83a6..cccac662c 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/SystemReader.java @@ -98,10 +98,6 @@ public abstract class SystemReader { private static class Default extends SystemReader { private volatile String hostname; - private AtomicReference systemConfig = new AtomicReference<>(); - - private volatile AtomicReference userConfig = new AtomicReference<>(); - @Override public String getenv(String variable) { return System.getenv(variable); @@ -114,23 +110,14 @@ public abstract class SystemReader { @Override public FileBasedConfig openSystemConfig(Config parent, FS fs) { - FileBasedConfig c = systemConfig.get(); - if (c == null) { - systemConfig.compareAndSet(null, - createSystemConfig(parent, fs)); - c = systemConfig.get(); - } - return c; - } - - protected FileBasedConfig createSystemConfig(Config parent, FS fs) { - if (StringUtils.isEmptyOrNull(getenv(Constants.GIT_CONFIG_NOSYSTEM_KEY))) { + if (StringUtils + .isEmptyOrNull(getenv(Constants.GIT_CONFIG_NOSYSTEM_KEY))) { File configFile = fs.getGitSystemConfig(); if (configFile != null) { return new FileBasedConfig(parent, configFile, fs); } } - return new FileBasedConfig(null, fs) { + return new FileBasedConfig(parent, null, fs) { @Override public void load() { // empty, do not load @@ -146,35 +133,8 @@ public abstract class SystemReader { @Override public FileBasedConfig openUserConfig(Config parent, FS fs) { - FileBasedConfig c = userConfig.get(); - if (c == null) { - userConfig.compareAndSet(null, new FileBasedConfig(parent, - new File(fs.userHome(), ".gitconfig"), fs)); //$NON-NLS-1$ - c = userConfig.get(); - } - return c; - } - - @Override - public StoredConfig getSystemConfig() - throws IOException, ConfigInvalidException { - FileBasedConfig c = openSystemConfig(null, FS.DETECTED); - if (c.isOutdated()) { - LOG.debug("loading system config {}", systemConfig); //$NON-NLS-1$ - c.load(); - } - return c; - } - - @Override - public StoredConfig getUserConfig() - throws IOException, ConfigInvalidException { - FileBasedConfig c = openUserConfig(getSystemConfig(), FS.DETECTED); - if (c.isOutdated()) { - LOG.debug("loading user config {}", userConfig); //$NON-NLS-1$ - c.load(); - } - return c; + return new FileBasedConfig(parent, new File(fs.userHome(), ".gitconfig"), //$NON-NLS-1$ + fs); } @Override @@ -234,6 +194,10 @@ public abstract class SystemReader { private ObjectChecker platformChecker; + private AtomicReference systemConfig = new AtomicReference<>(); + + private AtomicReference userConfig = new AtomicReference<>(); + private void init() { // Creating ObjectChecker must be deferred. Unit tests change // behavior of is{Windows,MacOS} in constructor of subclass. @@ -323,8 +287,23 @@ public abstract class SystemReader { * if something went wrong when reading files * @since 5.1.9 */ - public abstract StoredConfig getUserConfig() - throws IOException, ConfigInvalidException; + public StoredConfig getUserConfig() + throws IOException, ConfigInvalidException { + FileBasedConfig c = userConfig.get(); + if (c == null) { + userConfig.compareAndSet(null, + openUserConfig(getSystemConfig(), FS.DETECTED)); + c = userConfig.get(); + } else { + // Ensure the parent is up to date + getSystemConfig(); + } + if (c.isOutdated()) { + LOG.debug("loading user config {}", userConfig); //$NON-NLS-1$ + c.load(); + } + return c; + } /** * Get the gitconfig configuration found in the system-wide "etc" directory. @@ -339,8 +318,20 @@ public abstract class SystemReader { * if something went wrong when reading files * @since 5.1.9 */ - public abstract StoredConfig getSystemConfig() - throws IOException, ConfigInvalidException; + public StoredConfig getSystemConfig() + throws IOException, ConfigInvalidException { + FileBasedConfig c = systemConfig.get(); + if (c == null) { + systemConfig.compareAndSet(null, + openSystemConfig(null, FS.DETECTED)); + c = systemConfig.get(); + } + if (c.isOutdated()) { + LOG.debug("loading system config {}", systemConfig); //$NON-NLS-1$ + c.load(); + } + return c; + } /** * Get the current system time