Prompt for passwords from the console in jgit command line tools

If we are on a Java 6 JVM we should have the Console class available,
unless the user has redirected /dev/null to stdin.  When there is a
console present we would prefer to use that for command line prompts
as that is what the user expects from a command line tool.

Change-Id: Ibaf87bb5540371d94d96d1b7e94ca002f752e5bd
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

org.eclipse.jgit.console/.classpath

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

org.eclipse.jgit.console/.gitignore

@@ -0,0 +1,2 @@
+/bin
+/target

org.eclipse.jgit.console/.project

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>org.eclipse.jgit.console</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.api.tools.apiAnalysisBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.api.tools.apiAnalysisNature</nature>
+	</natures>
+</projectDescription>

org.eclipse.jgit.console/.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,3 @@
+#Sun Oct 11 08:00:39 EEST 2009
+eclipse.preferences.version=1
+encoding/<project>=UTF-8

org.eclipse.jgit.console/.settings/org.eclipse.core.runtime.prefs

@@ -0,0 +1,3 @@
+#Sun Oct 11 08:00:39 EEST 2009
+eclipse.preferences.version=1
+line.separator=\n

org.eclipse.jgit.console/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,331 @@
+#Sat Oct 31 19:37:20 PDT 2009
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+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_declaration_throws=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_method_invocation_arguments=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_parameterized_type_reference=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_arguments=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_ellipsis=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_annotation_type_declaration=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_anonymous_type_declaration=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_block=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_constant=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_enum_declaration=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_method_declaration=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_switch=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_type_declaration=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_type_reference=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_constructor_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_enum_constant=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_if=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_invocation=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized=insert
+org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_while=insert
+org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_return=insert
+org.eclipse.jdt.core.formatter.insert_space_before_parenthesized_expression_in_throw=insert
+org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional=insert
+org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_semicolon=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_unary_operator=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_brackets_in_array_allocation_expression=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_annotation_type_member_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_enum_constant=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_declaration=do not insert
+org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation=do not insert
+org.eclipse.jdt.core.formatter.keep_else_statement_on_same_line=false
+org.eclipse.jdt.core.formatter.keep_empty_array_initializer_on_one_line=false
+org.eclipse.jdt.core.formatter.keep_imple_if_on_one_line=false
+org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line=false
+org.eclipse.jdt.core.formatter.lineSplit=80
+org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column=false
+org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column=false
+org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body=0
+org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve=1
+org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line=true
+org.eclipse.jdt.core.formatter.tabulation.char=tab
+org.eclipse.jdt.core.formatter.tabulation.size=4
+org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations=false
+org.eclipse.jdt.core.formatter.wrap_before_binary_operator=true

org.eclipse.jgit.console/.settings/org.eclipse.jdt.ui.prefs

@@ -0,0 +1,61 @@
+#Sat Oct 31 16:20:21 PDT 2009
+eclipse.preferences.version=1
+editor_save_participant_org.eclipse.jdt.ui.postsavelistener.cleanup=true
+formatter_profile=_JGit Format
+formatter_settings_version=11
+org.eclipse.jdt.ui.ignorelowercasenames=true
+org.eclipse.jdt.ui.importorder=java;javax;org;com;
+org.eclipse.jdt.ui.ondemandthreshold=99
+org.eclipse.jdt.ui.staticondemandthreshold=99
+org.eclipse.jdt.ui.text.custom_code_templates=<?xml version\="1.0" encoding\="UTF-8"?><templates/>
+sp_cleanup.add_default_serial_version_id=true
+sp_cleanup.add_generated_serial_version_id=false
+sp_cleanup.add_missing_annotations=false
+sp_cleanup.add_missing_deprecated_annotations=true
+sp_cleanup.add_missing_methods=false
+sp_cleanup.add_missing_nls_tags=false
+sp_cleanup.add_missing_override_annotations=true
+sp_cleanup.add_serial_version_id=false
+sp_cleanup.always_use_blocks=true
+sp_cleanup.always_use_parentheses_in_expressions=false
+sp_cleanup.always_use_this_for_non_static_field_access=false
+sp_cleanup.always_use_this_for_non_static_method_access=false
+sp_cleanup.convert_to_enhanced_for_loop=false
+sp_cleanup.correct_indentation=false
+sp_cleanup.format_source_code=false
+sp_cleanup.format_source_code_changes_only=false
+sp_cleanup.make_local_variable_final=false
+sp_cleanup.make_parameters_final=false
+sp_cleanup.make_private_fields_final=true
+sp_cleanup.make_type_abstract_if_missing_method=false
+sp_cleanup.make_variable_declarations_final=false
+sp_cleanup.never_use_blocks=false
+sp_cleanup.never_use_parentheses_in_expressions=true
+sp_cleanup.on_save_use_additional_actions=true
+sp_cleanup.organize_imports=false
+sp_cleanup.qualify_static_field_accesses_with_declaring_class=false
+sp_cleanup.qualify_static_member_accesses_through_instances_with_declaring_class=true
+sp_cleanup.qualify_static_member_accesses_through_subtypes_with_declaring_class=true
+sp_cleanup.qualify_static_member_accesses_with_declaring_class=false
+sp_cleanup.qualify_static_method_accesses_with_declaring_class=false
+sp_cleanup.remove_private_constructors=true
+sp_cleanup.remove_trailing_whitespaces=true
+sp_cleanup.remove_trailing_whitespaces_all=true
+sp_cleanup.remove_trailing_whitespaces_ignore_empty=false
+sp_cleanup.remove_unnecessary_casts=false
+sp_cleanup.remove_unnecessary_nls_tags=false
+sp_cleanup.remove_unused_imports=false
+sp_cleanup.remove_unused_local_variables=false
+sp_cleanup.remove_unused_private_fields=true
+sp_cleanup.remove_unused_private_members=false
+sp_cleanup.remove_unused_private_methods=true
+sp_cleanup.remove_unused_private_types=true
+sp_cleanup.sort_members=false
+sp_cleanup.sort_members_all=false
+sp_cleanup.use_blocks=false
+sp_cleanup.use_blocks_only_for_return_and_throw=false
+sp_cleanup.use_parentheses_in_expressions=false
+sp_cleanup.use_this_for_non_static_field_access=false
+sp_cleanup.use_this_for_non_static_field_access_only_if_necessary=true
+sp_cleanup.use_this_for_non_static_method_access=false
+sp_cleanup.use_this_for_non_static_method_access_only_if_necessary=true

org.eclipse.jgit.console/.settings/org.eclipse.pde.core.prefs

@@ -0,0 +1,3 @@
+#Sun Oct 11 07:58:06 EEST 2009
+eclipse.preferences.version=1
+resolve.requirebundle=false

org.eclipse.jgit.console/META-INF/MANIFEST.MF

@@ -0,0 +1,12 @@
+Bundle-Localization: plugin
+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: %plugin_name
+Bundle-SymbolicName: org.eclipse.jgit.console
+Bundle-Version: 0.6.0.qualifier
+Bundle-Vendor: %provider_name
+Bundle-RequiredExecutionEnvironment: JavaSE-1.6
+Export-Package: org.eclipse.jgit.console;version="0.6.0"
+Import-Package: com.jcraft.jsch;version="0.1.41",
+ org.eclipse.jgit.transport;version="0.6.0",
+ org.eclipse.jgit.util

org.eclipse.jgit.console/build.properties

@@ -0,0 +1,5 @@
+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .,\
+               plugin.properties

org.eclipse.jgit.console/plugin.properties

@@ -0,0 +1,2 @@
+plugin_name=Java Git Console User Interface (Incubation)
+provider_name=eclipse.org

org.eclipse.jgit.console/pom.xml

@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+   Copyright (C) 2009, Google Inc.
+   Copyright (C) 2008, Imran M Yousuf <imyousuf@smartitengineering.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.
+-->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.eclipse.jgit</groupId>
+    <artifactId>jgit-parent</artifactId>
+    <version>0.6.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>org.eclipse.jgit.console</artifactId>
+  <name>JGit - Console User Interface</name>
+
+  <description>
+    Console based user interface
+  </description>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.eclipse.jgit</groupId>
+      <artifactId>org.eclipse.jgit</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <sourceDirectory>src/</sourceDirectory>
+
+    <resources>
+      <resource>
+        <directory>.</directory>
+        <includes>
+          <include>plugin.properties</include>
+        </includes>
+      </resource>
+    </resources>
+
+    <plugins>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.0.2</version>
+        <configuration>
+          <source>1.6</source>
+          <target>1.6</target>
+          <encoding>UTF-8</encoding>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifestFile>META-INF/MANIFEST.MF</manifestFile>
+          </archive>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>

org.eclipse.jgit.console/src/org/eclipse/jgit/console/ConsoleAuthenticator.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2009, Google Inc.
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
+ * 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.console;
+
+import java.io.Console;
+import java.net.Authenticator;
+import java.net.PasswordAuthentication;
+
+import org.eclipse.jgit.util.CachedAuthenticator;
+
+/** Basic network prompt for username/password when using the console. */
+public class ConsoleAuthenticator extends CachedAuthenticator {
+	/** Install this authenticator implementation into the JVM. */
+	public static void install() {
+		final ConsoleAuthenticator c = new ConsoleAuthenticator();
+		if (c.cons == null)
+			throw new NoClassDefFoundError("No System.console available");
+		Authenticator.setDefault(c);
+	}
+
+	private final Console cons = System.console();
+
+	@Override
+	protected PasswordAuthentication promptPasswordAuthentication() {
+		final String realm = formatRealm();
+		String username = cons.readLine("Username for %s: ", realm);
+		if (username == null || username.isEmpty()) {
+			return null;
+		}
+		char[] password = cons.readPassword("Password: ");
+		if (password == null) {
+			password = new char[0];
+		}
+		return new PasswordAuthentication(username, password);
+	}
+
+	private String formatRealm() {
+		final StringBuilder realm = new StringBuilder();
+		if (getRequestorType() == RequestorType.PROXY) {
+			realm.append(getRequestorType());
+			realm.append(" ");
+			realm.append(getRequestingHost());
+			if (getRequestingPort() > 0) {
+				realm.append(":");
+				realm.append(getRequestingPort());
+			}
+		} else {
+			realm.append(getRequestingURL());
+		}
+		return realm.toString();
+	}
+}

org.eclipse.jgit.console/src/org/eclipse/jgit/console/ConsoleSshSessionFactory.java

@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2009, Google Inc.
+ * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
+ * 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.console;
+
+import java.io.Console;
+
+import org.eclipse.jgit.transport.OpenSshConfig;
+import org.eclipse.jgit.transport.SshConfigSessionFactory;
+import org.eclipse.jgit.transport.SshSessionFactory;
+
+import com.jcraft.jsch.Session;
+import com.jcraft.jsch.UIKeyboardInteractive;
+import com.jcraft.jsch.UserInfo;
+
+/**
+ * Loads known hosts and private keys from <code>$HOME/.ssh</code>.
+ * <p>
+ * This is the default implementation used by JGit and provides most of the
+ * compatibility necessary to match OpenSSH, a popular implementation of SSH
+ * used by C Git.
+ * <p>
+ * If user interactivity is required by SSH (e.g. to obtain a password) the
+ * system console is used to display a prompt to the end-user.
+ */
+public class ConsoleSshSessionFactory extends SshConfigSessionFactory {
+	/** Install this session factory implementation into the JVM. */
+	public static void install() {
+		final ConsoleSshSessionFactory c = new ConsoleSshSessionFactory();
+		if (c.cons == null)
+			throw new NoClassDefFoundError("No System.console available");
+		SshSessionFactory.setInstance(c);
+	}
+
+	private final Console cons = System.console();
+
+	@Override
+	protected void configure(final OpenSshConfig.Host hc, final Session session) {
+		if (!hc.isBatchMode())
+			session.setUserInfo(new ConsoleUserInfo());
+	}
+
+	private class ConsoleUserInfo implements UserInfo, UIKeyboardInteractive {
+		private String passwd;
+
+		private String passphrase;
+
+		public void showMessage(final String msg) {
+			cons.printf("%s\n", msg);
+			cons.flush();
+		}
+
+		public boolean promptYesNo(final String msg) {
+			String r = cons.readLine("%s [y/n]? ", msg);
+			return "y".equalsIgnoreCase(r);
+		}
+
+		public boolean promptPassword(final String msg) {
+			passwd = null;
+			char[] p = cons.readPassword("%s: ", msg);
+			if (p != null) {
+				passwd = new String(p);
+				return true;
+			}
+			return false;
+		}
+
+		public boolean promptPassphrase(final String msg) {
+			passphrase = null;
+			char[] p = cons.readPassword("%s: ", msg);
+			if (p != null) {
+				passphrase = new String(p);
+				return true;
+			}
+			return false;
+		}
+
+		public String getPassword() {
+			return passwd;
+		}
+
+		public String getPassphrase() {
+			return passphrase;
+		}
+
+		public String[] promptKeyboardInteractive(final String destination,
+				final String name, final String instruction,
+				final String[] prompt, final boolean[] echo) {
+			cons.printf("%s: %s\n", destination, name);
+			cons.printf("%s\n", instruction);
+			final String[] response = new String[prompt.length];
+			for (int i = 0; i < prompt.length; i++) {
+				if (echo[i]) {
+					response[i] = cons.readLine("%s: ", prompt[i]);
+				} else {
+					final char[] p = cons.readPassword("%s: ", prompt[i]);
+					response[i] = p != null ? new String(p) : "";
+				}
+			}
+			return response;
+		}
+	}
+}

org.eclipse.jgit.pgm/pom.xml

@@ -77,6 +77,22 @@
     </dependency>
   </dependencies>
 
+  <profiles>
+    <profile>
+      <id>java6</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <dependencies>
+        <dependency>
+          <groupId>org.eclipse.jgit</groupId>
+          <artifactId>org.eclipse.jgit.console</artifactId>
+          <version>${project.version}</version>
+        </dependency>
+      </dependencies>
+    </profile>
+  </profiles>
+
   <build>
     <sourceDirectory>src/</sourceDirectory>
 

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

@@ -45,6 +45,7 @@
 package org.eclipse.jgit.pgm;
 
 import java.io.File;
+import java.lang.reflect.InvocationTargetException;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.ArrayList;
@@ -88,8 +89,10 @@ public class Main {
 	public static void main(final String[] argv) {
 		final Main me = new Main();
 		try {
+			if (!installConsole()) {
 				AwtAuthenticator.install();
 				AwtSshSessionFactory.install();
+			}
 			configureHttpProxy();
 			me.execute(argv);
 		} catch (Die err) {
@@ -184,6 +187,45 @@ public class Main {
 		return null;
 	}
 
+	private static boolean installConsole() {
+		try {
+			install("org.eclipse.jgit.console.ConsoleAuthenticator");
+			install("org.eclipse.jgit.console.ConsoleSshSessionFactory");
+			return true;
+		} catch (ClassNotFoundException e) {
+			return false;
+		} catch (NoClassDefFoundError e) {
+			return false;
+		} catch (UnsupportedClassVersionError e) {
+			return false;
+
+		} catch (IllegalArgumentException e) {
+			throw new RuntimeException("Cannot setup console", e);
+		} catch (SecurityException e) {
+			throw new RuntimeException("Cannot setup console", e);
+		} catch (IllegalAccessException e) {
+			throw new RuntimeException("Cannot setup console", e);
+		} catch (InvocationTargetException e) {
+			throw new RuntimeException("Cannot setup console", e);
+		} catch (NoSuchMethodException e) {
+			throw new RuntimeException("Cannot setup console", e);
+		}
+	}
+
+	private static void install(final String name)
+			throws IllegalAccessException, InvocationTargetException,
+			NoSuchMethodException, ClassNotFoundException {
+		try {
+		Class.forName(name).getMethod("install").invoke(null);
+		} catch (InvocationTargetException e) {
+			if (e.getCause() instanceof RuntimeException)
+				throw (RuntimeException) e.getCause();
+			if (e.getCause() instanceof Error)
+				throw (Error) e.getCause();
+			throw e;
+		}
+	}
+
 	/**
 	 * Configure the JRE's standard HTTP based on <code>http_proxy</code>.
 	 * <p>

pom.xml

@@ -231,6 +231,21 @@
     </snapshotRepository>
   </distributionManagement>
 
+  <profiles>
+    <!-- Set -Djgit.java6.skip=true to compile with only Java 5 -->
+    <profile>
+      <id>java6</id>
+      <activation>
+        <property>
+          <name>!jgit.java6.skip</name>
+        </property>
+      </activation>
+      <modules>
+        <module>org.eclipse.jgit.console</module>
+      </modules>
+    </profile>
+  </profiles>
+
   <modules>
     <module>org.eclipse.jgit</module>
     <module>org.eclipse.jgit.ui</module>