package org.apache.maven.cli;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import java.io.PrintStream;
  import java.io.PrintWriter;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.CommandLineParser;
  import org.apache.commons.cli.GnuParser;
  import org.apache.commons.cli.HelpFormatter;
  import org.apache.commons.cli.OptionBuilder;
  import org.apache.commons.cli.Options;
  import org.apache.commons.cli.ParseException;
  
  /**
   * @author Jason van Zyl
   */
  public class CLIManager
  {
      public static final char ALTERNATE_POM_FILE = 'f';
  
      public static final char BATCH_MODE = 'B';
  
      public static final char SET_SYSTEM_PROPERTY = 'D';
  
      public static final char OFFLINE = 'o';
  
      public static final char QUIET = 'q';
  
      public static final char DEBUG = 'X';
  
      public static final char ERRORS = 'e';
  
      public static final char HELP = 'h';
  
      public static final char VERSION = 'v';
  
      public static final char SHOW_VERSION = 'V';
  
      public static final char NON_RECURSIVE = 'N';
  
      public static final char UPDATE_SNAPSHOTS = 'U';
  
      public static final char ACTIVATE_PROFILES = 'P';
  
      public static final String SUPRESS_SNAPSHOT_UPDATES = "nsu";
  
      public static final char CHECKSUM_FAILURE_POLICY = 'C';
  
      public static final char CHECKSUM_WARNING_POLICY = 'c';
  
      public static final char ALTERNATE_USER_SETTINGS = 's';
  
      public static final String ALTERNATE_GLOBAL_SETTINGS = "gs";
  
      public static final char ALTERNATE_USER_TOOLCHAINS = 't';
  
      public static final String FAIL_FAST = "ff";
  
      public static final String FAIL_AT_END = "fae";
  
      public static final String FAIL_NEVER = "fn";
  
      public static final String RESUME_FROM = "rf";
  
      public static final String PROJECT_LIST = "pl";
  
      public static final String ALSO_MAKE = "am";
  
      public static final String ALSO_MAKE_DEPENDENTS = "amd";
  
      public static final String LOG_FILE = "l";
  
      public static final String ENCRYPT_MASTER_PASSWORD = "emp";
  
      public static final String ENCRYPT_PASSWORD = "ep";
  
      public static final String THREADS = "T";
  
     private Options options;
 
     @SuppressWarnings( "static-access" )
     public CLIManager()
     {
         options = new Options();
         options.addOption( OptionBuilder.withLongOpt( "help" ).withDescription( "Display help information" ).create( HELP ) );
         options.addOption( OptionBuilder.withLongOpt( "file" ).hasArg().withDescription( "Force the use of an alternate POM file." ).create( ALTERNATE_POM_FILE ) );
         options.addOption( OptionBuilder.withLongOpt( "define" ).hasArg().withDescription( "Define a system property" ).create( SET_SYSTEM_PROPERTY ) );
         options.addOption( OptionBuilder.withLongOpt( "offline" ).withDescription( "Work offline" ).create( OFFLINE ) );
         options.addOption( OptionBuilder.withLongOpt( "version" ).withDescription( "Display version information" ).create( VERSION ) );
         options.addOption( OptionBuilder.withLongOpt( "quiet" ).withDescription( "Quiet output - only show errors" ).create( QUIET ) );
         options.addOption( OptionBuilder.withLongOpt( "debug" ).withDescription( "Produce execution debug output" ).create( DEBUG ) );
         options.addOption( OptionBuilder.withLongOpt( "errors" ).withDescription( "Produce execution error messages" ).create( ERRORS ) );
         options.addOption( OptionBuilder.withLongOpt( "non-recursive" ).withDescription( "Do not recurse into sub-projects" ).create( NON_RECURSIVE ) );
         options.addOption( OptionBuilder.withLongOpt( "update-snapshots" ).withDescription( "Forces a check for updated releases and snapshots on remote repositories" ).create( UPDATE_SNAPSHOTS ) );
         options.addOption( OptionBuilder.withLongOpt( "activate-profiles" ).withDescription( "Comma-delimited list of profiles to activate" ).hasArg().create( ACTIVATE_PROFILES ) );
         options.addOption( OptionBuilder.withLongOpt( "batch-mode" ).withDescription( "Run in non-interactive (batch) mode" ).create( BATCH_MODE ) );
         options.addOption( OptionBuilder.withLongOpt( "no-snapshot-updates" ).withDescription( "Suppress SNAPSHOT updates" ).create( SUPRESS_SNAPSHOT_UPDATES ) );
         options.addOption( OptionBuilder.withLongOpt( "strict-checksums" ).withDescription( "Fail the build if checksums don't match" ).create( CHECKSUM_FAILURE_POLICY ) );
         options.addOption( OptionBuilder.withLongOpt( "lax-checksums" ).withDescription( "Warn if checksums don't match" ).create( CHECKSUM_WARNING_POLICY ) );
         options.addOption( OptionBuilder.withLongOpt( "settings" ).withDescription( "Alternate path for the user settings file" ).hasArg().create( ALTERNATE_USER_SETTINGS ) );
         options.addOption( OptionBuilder.withLongOpt( "global-settings" ).withDescription( "Alternate path for the global settings file" ).hasArg().create( ALTERNATE_GLOBAL_SETTINGS ) );
         options.addOption( OptionBuilder.withLongOpt( "toolchains" ).withDescription( "Alternate path for the user toolchains file" ).hasArg().create( ALTERNATE_USER_TOOLCHAINS ) );
         options.addOption( OptionBuilder.withLongOpt( "fail-fast" ).withDescription( "Stop at first failure in reactorized builds" ).create( FAIL_FAST ) );
         options.addOption( OptionBuilder.withLongOpt( "fail-at-end" ).withDescription( "Only fail the build afterwards; allow all non-impacted builds to continue" ).create( FAIL_AT_END ) );
         options.addOption( OptionBuilder.withLongOpt( "fail-never" ).withDescription( "NEVER fail the build, regardless of project result" ).create( FAIL_NEVER ) );
         options.addOption( OptionBuilder.withLongOpt( "resume-from" ).hasArg().withDescription( "Resume reactor from specified project" ).create( RESUME_FROM ) );
         options.addOption( OptionBuilder.withLongOpt( "projects" ).withDescription( "Comma-delimited list of specified reactor projects to build instead of all projects. A project can be specified by [groupId]:artifactId or by its relative path." ).hasArg().create( PROJECT_LIST ) );
         options.addOption( OptionBuilder.withLongOpt( "also-make" ).withDescription( "If project list is specified, also build projects required by the list" ).create( ALSO_MAKE ) );
         options.addOption( OptionBuilder.withLongOpt( "also-make-dependents" ).withDescription( "If project list is specified, also build projects that depend on projects on the list" ).create( ALSO_MAKE_DEPENDENTS ) );
         options.addOption( OptionBuilder.withLongOpt( "log-file" ).hasArg().withDescription( "Log file to where all build output will go." ).create( LOG_FILE ) );
         options.addOption( OptionBuilder.withLongOpt( "show-version" ).withDescription( "Display version information WITHOUT stopping build" ).create( SHOW_VERSION ) );
         options.addOption( OptionBuilder.withLongOpt( "encrypt-master-password" ).hasArg().withDescription( "Encrypt master security password" ).create( ENCRYPT_MASTER_PASSWORD ) );
         options.addOption( OptionBuilder.withLongOpt( "encrypt-password" ).hasArg().withDescription( "Encrypt server password" ).create( ENCRYPT_PASSWORD ) );
         options.addOption( OptionBuilder.withLongOpt( "threads" ).hasArg().withDescription( "Thread count, for instance 2.0C where C is core multiplied" ).create( THREADS ) );
 
         // Adding this back in for compatibility with the verifier that hard codes this option.
 
         options.addOption( OptionBuilder.withLongOpt( "no-plugin-registry" ).withDescription( "Ineffective, only kept for backward compatibility" ).create( "npr" ) );
         options.addOption( OptionBuilder.withLongOpt( "check-plugin-updates" ).withDescription( "Ineffective, only kept for backward compatibility" ).create( "cpu" ) );
         options.addOption( OptionBuilder.withLongOpt( "update-plugins" ).withDescription( "Ineffective, only kept for backward compatibility" ).create( "up" ) );
         options.addOption( OptionBuilder.withLongOpt( "no-plugin-updates" ).withDescription( "Ineffective, only kept for backward compatibility" ).create( "npu" ) );
     }
 
     public CommandLine parse( String[] args )
         throws ParseException
     {
         // We need to eat any quotes surrounding arguments...
         String[] cleanArgs = cleanArgs( args );
 
         CommandLineParser parser = new GnuParser();
 
         return parser.parse( options, cleanArgs );
     }
 
     private String[] cleanArgs( String[] args )
     {
         List<String> cleaned = new ArrayList<String>();
 
         StringBuilder currentArg = null;
 
         for ( int i = 0; i < args.length; i++ )
         {
             String arg = args[i];
 
             boolean addedToBuffer = false;
 
             if ( arg.startsWith( "\"" ) )
             {
                 // if we're in the process of building up another arg, push it and start over.
                 // this is for the case: "-Dfoo=bar "-Dfoo2=bar two" (note the first unterminated quote)
                 if ( currentArg != null )
                 {
                     cleaned.add( currentArg.toString() );
                 }
 
                 // start building an argument here.
                 currentArg = new StringBuilder( arg.substring( 1 ) );
                 addedToBuffer = true;
             }
 
             // this has to be a separate "if" statement, to capture the case of: "-Dfoo=bar"
             if ( arg.endsWith( "\"" ) )
             {
                 String cleanArgPart = arg.substring( 0, arg.length() - 1 );
 
                 // if we're building an argument, keep doing so.
                 if ( currentArg != null )
                 {
                     // if this is the case of "-Dfoo=bar", then we need to adjust the buffer.
                     if ( addedToBuffer )
                     {
                         currentArg.setLength( currentArg.length() - 1 );
                     }
                     // otherwise, we trim the trailing " and append to the buffer.
                     else
                     {
                         // TODO: introducing a space here...not sure what else to do but collapse whitespace
                         currentArg.append( ' ' ).append( cleanArgPart );
                     }
 
                     cleaned.add( currentArg.toString() );
                 }
                 else
                 {
                     cleaned.add( cleanArgPart );
                 }
 
                 currentArg = null;
 
                 continue;
             }
 
             // if we haven't added this arg to the buffer, and we ARE building an argument
             // buffer, then append it with a preceding space...again, not sure what else to
             // do other than collapse whitespace.
             // NOTE: The case of a trailing quote is handled by nullifying the arg buffer.
             if ( !addedToBuffer )
             {
                 if ( currentArg != null )
                 {
                     currentArg.append( ' ' ).append( arg );
                 }
                 else
                 {
                     cleaned.add( arg );
                 }
             }
         }
 
         if ( currentArg != null )
         {
             cleaned.add( currentArg.toString() );
         }
 
         int cleanedSz = cleaned.size();
 
         String[] cleanArgs = null;
 
         if ( cleanedSz == 0 )
         {
             cleanArgs = args;
         }
         else
         {
             cleanArgs = cleaned.toArray( new String[cleanedSz] );
         }
 
         return cleanArgs;
     }
 
     public void displayHelp( PrintStream stdout )
     {
         stdout.println();
 
         PrintWriter pw = new PrintWriter( stdout );
 
         HelpFormatter formatter = new HelpFormatter();
 
         formatter.printHelp( pw, HelpFormatter.DEFAULT_WIDTH, "mvn [options] [<goal(s)>] [<phase(s)>]", "\nOptions:",
                              options, HelpFormatter.DEFAULT_LEFT_PAD, HelpFormatter.DEFAULT_DESC_PAD, "\n", false );
 
         pw.flush();
     }
 
 }