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>

1 files changed, 121 insertions, 0 deletions

diff --git a/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Config.java b/org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Config.java
new file mode 100644
index 0000000000..f2cd920580
--- /dev/null
+++ b/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);
+					}
+				}
+			}
+		}
+	}
+}
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