From 436bd3f0ecdee282c503a9eb0f7a240b7a68ff49 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Fri, 11 Apr 2014 14:51:50 -0400
Subject: [PATCH] Merged #6 "Support serving repositories over the SSH transport"
---
src/main/java/com/gitblit/utils/cli/CmdLineParser.java | 433 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 433 insertions(+), 0 deletions(-)
diff --git a/src/main/java/com/gitblit/utils/cli/CmdLineParser.java b/src/main/java/com/gitblit/utils/cli/CmdLineParser.java
new file mode 100644
index 0000000..e698eb5
--- /dev/null
+++ b/src/main/java/com/gitblit/utils/cli/CmdLineParser.java
@@ -0,0 +1,433 @@
+/*
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
+ *
+ * (Taken from JGit org.eclipse.jgit.pgm.opt.CmdLineParser.)
+ *
+ * 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 Git Development Community 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 com.gitblit.utils.cli;
+
+import java.io.StringWriter;
+import java.io.Writer;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.AnnotatedElement;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.ResourceBundle;
+
+import org.kohsuke.args4j.Argument;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.IllegalAnnotationError;
+import org.kohsuke.args4j.NamedOptionDef;
+import org.kohsuke.args4j.Option;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.BooleanOptionHandler;
+import org.kohsuke.args4j.spi.EnumOptionHandler;
+import org.kohsuke.args4j.spi.FieldSetter;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Setter;
+
+import com.google.common.base.Strings;
+import com.google.common.collect.LinkedHashMultimap;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Multimap;
+
+/**
+ * Extended command line parser which handles --foo=value arguments.
+ * <p>
+ * The args4j package does not natively handle --foo=value and instead prefers
+ * to see --foo value on the command line. Many users are used to the GNU style
+ * --foo=value long option, so we convert from the GNU style format to the
+ * args4j style format prior to invoking args4j for parsing.
+ */
+public class CmdLineParser {
+ public interface Factory {
+ CmdLineParser create(Object bean);
+ }
+
+ private final MyParser parser;
+
+ @SuppressWarnings("rawtypes")
+ private Map<String, OptionHandler> options;
+
+ /**
+ * Creates a new command line owner that parses arguments/options and set
+ * them into the given object.
+ *
+ * @param bean
+ * instance of a class annotated by
+ * {@link org.kohsuke.args4j.Option} and
+ * {@link org.kohsuke.args4j.Argument}. this object will receive
+ * values.
+ *
+ * @throws IllegalAnnotationError
+ * if the option bean class is using args4j annotations
+ * incorrectly.
+ */
+ public CmdLineParser(Object bean) throws IllegalAnnotationError {
+ this.parser = new MyParser(bean);
+ }
+
+ public void addArgument(Setter<?> setter, Argument a) {
+ parser.addArgument(setter, a);
+ }
+
+ public void addOption(Setter<?> setter, Option o) {
+ parser.addOption(setter, o);
+ }
+
+ public void printSingleLineUsage(Writer w, ResourceBundle rb) {
+ parser.printSingleLineUsage(w, rb);
+ }
+
+ public void printUsage(Writer out, ResourceBundle rb) {
+ parser.printUsage(out, rb);
+ }
+
+ public void printDetailedUsage(String name, StringWriter out) {
+ out.write(name);
+ printSingleLineUsage(out, null);
+ out.write('\n');
+ out.write('\n');
+ printUsage(out, null);
+ out.write('\n');
+ }
+
+ public void printQueryStringUsage(String name, StringWriter out) {
+ out.write(name);
+
+ char next = '?';
+ List<NamedOptionDef> booleans = new ArrayList<NamedOptionDef>();
+ for (@SuppressWarnings("rawtypes")
+ OptionHandler handler : parser.options) {
+ if (handler.option instanceof NamedOptionDef) {
+ NamedOptionDef n = (NamedOptionDef) handler.option;
+
+ if (handler instanceof BooleanOptionHandler) {
+ booleans.add(n);
+ continue;
+ }
+
+ if (!n.required()) {
+ out.write('[');
+ }
+ out.write(next);
+ next = '&';
+ if (n.name().startsWith("--")) {
+ out.write(n.name().substring(2));
+ } else if (n.name().startsWith("-")) {
+ out.write(n.name().substring(1));
+ } else {
+ out.write(n.name());
+ }
+ out.write('=');
+
+ out.write(metaVar(handler, n));
+ if (!n.required()) {
+ out.write(']');
+ }
+ if (n.isMultiValued()) {
+ out.write('*');
+ }
+ }
+ }
+ for (NamedOptionDef n : booleans) {
+ if (!n.required()) {
+ out.write('[');
+ }
+ out.write(next);
+ next = '&';
+ if (n.name().startsWith("--")) {
+ out.write(n.name().substring(2));
+ } else if (n.name().startsWith("-")) {
+ out.write(n.name().substring(1));
+ } else {
+ out.write(n.name());
+ }
+ if (!n.required()) {
+ out.write(']');
+ }
+ }
+ }
+
+ private static String metaVar(OptionHandler<?> handler, NamedOptionDef n) {
+ String var = n.metaVar();
+ if (Strings.isNullOrEmpty(var)) {
+ var = handler.getDefaultMetaVariable();
+ if (handler instanceof EnumOptionHandler) {
+ var = var.substring(1, var.length() - 1).replace(" ", "");
+ }
+ }
+ return var;
+ }
+
+ public boolean wasHelpRequestedByOption() {
+ return parser.help.value;
+ }
+
+ public void parseArgument(final String... args) throws CmdLineException {
+ List<String> tmp = Lists.newArrayListWithCapacity(args.length);
+ for (int argi = 0; argi < args.length; argi++) {
+ final String str = args[argi];
+ if (str.equals("--")) {
+ while (argi < args.length)
+ tmp.add(args[argi++]);
+ break;
+ }
+
+ if (str.startsWith("--")) {
+ final int eq = str.indexOf('=');
+ if (eq > 0) {
+ tmp.add(str.substring(0, eq));
+ tmp.add(str.substring(eq + 1));
+ continue;
+ }
+ }
+
+ tmp.add(str);
+ }
+ parser.parseArgument(tmp.toArray(new String[tmp.size()]));
+ }
+
+ public void parseOptionMap(Map<String, String[]> parameters) throws CmdLineException {
+ Multimap<String, String> map = LinkedHashMultimap.create();
+ for (Map.Entry<String, String[]> ent : parameters.entrySet()) {
+ for (String val : ent.getValue()) {
+ map.put(ent.getKey(), val);
+ }
+ }
+ parseOptionMap(map);
+ }
+
+ public void parseOptionMap(Multimap<String, String> params) throws CmdLineException {
+ List<String> tmp = Lists.newArrayListWithCapacity(2 * params.size());
+ for (final String key : params.keySet()) {
+ String name = makeOption(key);
+
+ if (isBoolean(name)) {
+ boolean on = false;
+ for (String value : params.get(key)) {
+ on = toBoolean(key, value);
+ }
+ if (on) {
+ tmp.add(name);
+ }
+ } else {
+ for (String value : params.get(key)) {
+ tmp.add(name);
+ tmp.add(value);
+ }
+ }
+ }
+ parser.parseArgument(tmp.toArray(new String[tmp.size()]));
+ }
+
+ public boolean isBoolean(String name) {
+ return findHandler(makeOption(name)) instanceof BooleanOptionHandler;
+ }
+
+ private String makeOption(String name) {
+ if (!name.startsWith("-")) {
+ if (name.length() == 1) {
+ name = "-" + name;
+ } else {
+ name = "--" + name;
+ }
+ }
+ return name;
+ }
+
+ @SuppressWarnings("rawtypes")
+ private OptionHandler findHandler(String name) {
+ if (options == null) {
+ options = index(parser.options);
+ }
+ return options.get(name);
+ }
+
+ @SuppressWarnings("rawtypes")
+ private static Map<String, OptionHandler> index(List<OptionHandler> in) {
+ Map<String, OptionHandler> m = Maps.newHashMap();
+ for (OptionHandler handler : in) {
+ if (handler.option instanceof NamedOptionDef) {
+ NamedOptionDef def = (NamedOptionDef) handler.option;
+ if (!def.isArgument()) {
+ m.put(def.name(), handler);
+ for (String alias : def.aliases()) {
+ m.put(alias, handler);
+ }
+ }
+ }
+ }
+ return m;
+ }
+
+ private boolean toBoolean(String name, String value) throws CmdLineException {
+ if ("true".equals(value) || "t".equals(value) || "yes".equals(value) || "y".equals(value) || "on".equals(value)
+ || "1".equals(value) || value == null || "".equals(value)) {
+ return true;
+ }
+
+ if ("false".equals(value) || "f".equals(value) || "no".equals(value) || "n".equals(value)
+ || "off".equals(value) || "0".equals(value)) {
+ return false;
+ }
+
+ throw new CmdLineException(parser, String.format("invalid boolean \"%s=%s\"", name, value));
+ }
+
+ private class MyParser extends org.kohsuke.args4j.CmdLineParser {
+ @SuppressWarnings("rawtypes")
+ private List<OptionHandler> options;
+ private HelpOption help;
+
+ MyParser(final Object bean) {
+ super(bean);
+ ensureOptionsInitialized();
+ }
+
+ @SuppressWarnings({ "unchecked", "rawtypes" })
+ @Override
+ protected OptionHandler createOptionHandler(final OptionDef option, final Setter setter) {
+ if (isHandlerSpecified(option) || isEnum(setter) || isPrimitive(setter)) {
+ return add(super.createOptionHandler(option, setter));
+ }
+
+ // OptionHandlerFactory<?> factory = handlers.get(setter.getType());
+ // if (factory != null) {
+ // return factory.create(this, option, setter);
+ // }
+ return add(super.createOptionHandler(option, setter));
+ }
+
+ @SuppressWarnings("rawtypes")
+ private OptionHandler add(OptionHandler handler) {
+ ensureOptionsInitialized();
+ options.add(handler);
+ return handler;
+ }
+
+ private void ensureOptionsInitialized() {
+ if (options == null) {
+ help = new HelpOption();
+ options = Lists.newArrayList();
+ addOption(help, help);
+ }
+ }
+
+ private boolean isHandlerSpecified(final OptionDef option) {
+ return option.handler() != OptionHandler.class;
+ }
+
+ private <T> boolean isEnum(Setter<T> setter) {
+ return Enum.class.isAssignableFrom(setter.getType());
+ }
+
+ private <T> boolean isPrimitive(Setter<T> setter) {
+ return setter.getType().isPrimitive();
+ }
+ }
+
+ private static class HelpOption implements Option, Setter<Boolean> {
+ private boolean value;
+
+ @Override
+ public String name() {
+ return "--help";
+ }
+
+ @Override
+ public String[] aliases() {
+ return new String[] { "-h" };
+ }
+
+ @Override
+ public String[] depends() {
+ return new String[] {};
+ }
+
+ @Override
+ public boolean hidden() {
+ return false;
+ }
+
+ @Override
+ public String usage() {
+ return "display this help text";
+ }
+
+ @Override
+ public void addValue(Boolean val) {
+ value = val;
+ }
+
+ @Override
+ public Class<? extends OptionHandler<Boolean>> handler() {
+ return BooleanOptionHandler.class;
+ }
+
+ @Override
+ public String metaVar() {
+ return "";
+ }
+
+ @Override
+ public boolean required() {
+ return false;
+ }
+
+ @Override
+ public Class<? extends Annotation> annotationType() {
+ return Option.class;
+ }
+
+ @Override
+ public FieldSetter asFieldSetter() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public AnnotatedElement asAnnotatedElement() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public Class<Boolean> getType() {
+ return Boolean.class;
+ }
+
+ @Override
+ public boolean isMultiValued() {
+ return false;
+ }
+ }
+}
--
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