Add config --list command to pgm

Currently, only --list option is supported with --global, --system,
--local and --file switches.

Change-Id: I9b179b162996520e95c4e001dccd65c566a4bd27
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.pgm.test/tst/org/eclipse/jgit/pgm/ConfigTest.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2012, Matthias Sohn <matthias.sohn@sap.com>
+ * 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.pgm;
+
+import static org.junit.Assert.assertArrayEquals;
+
+import org.eclipse.jgit.api.Git;
+import org.eclipse.jgit.lib.CLIRepositoryTestCase;
+import org.junit.Before;
+import org.junit.Test;
+
+public class ConfigTest extends CLIRepositoryTestCase {
+	@Override
+	@Before
+	public void setUp() throws Exception {
+		super.setUp();
+		new Git(db).commit().setMessage("initial commit").call();
+	}
+
+	@Test
+	public void testListConfig() throws Exception {
+		String[] output = execute("git config --list");
+		assertArrayEquals("expected default configuration", //
+				new String[] { "core.autocrlf=false", //
+						"core.filemode=true", //
+						"core.logallrefupdates=true", //
+						"core.repositoryformatversion=0", //
+						"" /* ends with LF (last line empty) */}, output);
+	}
+}

org.eclipse.jgit.pgm/META-INF/services/org.eclipse.jgit.pgm.TextBuiltin

@@ -5,6 +5,7 @@ org.eclipse.jgit.pgm.Branch
 org.eclipse.jgit.pgm.Checkout
 org.eclipse.jgit.pgm.Clone
 org.eclipse.jgit.pgm.Commit
+org.eclipse.jgit.pgm.Config
 org.eclipse.jgit.pgm.Daemon
 org.eclipse.jgit.pgm.Diff
 org.eclipse.jgit.pgm.DiffTree

org.eclipse.jgit.pgm/resources/org/eclipse/jgit/pgm/CLIText.properties

@@ -206,6 +206,7 @@ usage_forEachRefOutput=for-each-ref output
 usage_forceCheckout=when switching branches, proceed even if the index or the working tree differs from HEAD
 usage_forceCreateBranchEvenExists=force create branch even exists
 usage_forceReplacingAnExistingTag=force replacing an existing tag
+usage_getAndSetOptions=Get and set repository or global options
 usage_hostnameOrIpToListenOn=hostname (or ip) to listen on
 usage_indexFileFormatToCreate=index file format to create
 usage_ignoreWhitespace=ignore all whitespace

org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Config.java

@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2012, Tomasz Zarna <Tomasz.Zarna@pl.ibm.com> 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.pgm;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Set;
+
+import org.eclipse.jgit.errors.ConfigInvalidException;
+import org.eclipse.jgit.errors.NotSupportedException;
+import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.StoredConfig;
+import org.eclipse.jgit.storage.file.FileBasedConfig;
+import org.eclipse.jgit.util.FS;
+import org.eclipse.jgit.util.SystemReader;
+import org.kohsuke.args4j.Option;
+
+@Command(common = true, usage = "usage_getAndSetOptions")
+class Config extends TextBuiltin {
+	@Option(name = "--system")
+	private boolean system;
+
+	@Option(name = "--global")
+	private boolean global;
+
+	@Option(name = "--local")
+	private boolean local;
+
+	@Option(name = "--list", aliases = { "-l" })
+	private boolean list;
+
+	@Option(name = "--file", aliases = { "-f" })
+	private File configFile;
+
+	@Override
+	protected void run() throws Exception {
+		if (list)
+			list();
+		else
+			throw new NotSupportedException(
+					"only --list option is currently supported");
+	}
+
+	private void list() throws IOException, ConfigInvalidException {
+		final FS fs = getRepository().getFS();
+		if (configFile != null) {
+			list(new FileBasedConfig(configFile, fs));
+			return;
+		}
+		if (system || isListAll())
+			list(SystemReader.getInstance().openSystemConfig(null, fs));
+		if (global || isListAll())
+			list(SystemReader.getInstance().openUserConfig(null, fs));
+		if (local || isListAll())
+			list(new FileBasedConfig(fs.resolve(getRepository().getDirectory(),
+					Constants.CONFIG), fs));
+	}
+
+	private boolean isListAll() {
+		return !system && !global && !local && configFile == null;
+	}
+
+	private void list(StoredConfig config) throws IOException,
+			ConfigInvalidException {
+		config.load();
+		Set<String> sections = config.getSections();
+		for (String section : sections) {
+			Set<String> names = config.getNames(section);
+			for (String name : names) {
+				for (String value : config.getStringList(section, null, name))
+					out.println(section + "." + name + "=" + value);
+			}
+			if (names.isEmpty()) {
+				for (String subsection : config.getSubsections(section)) {
+					names = config.getNames(section, subsection);
+					for (String name : names) {
+						for (String value : config.getStringList(section,
+								subsection, name))
+							out.println(section + "." + subsection + "."
+									+ name + "=" + value);
+					}
+				}
+			}
+		}
+	}
+}