package org.apache.maven.cli;

 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;

 import java.util.ArrayList;

 import java.util.List;

 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 REACTOR = 'r';

     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';

     private Options options;

     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 FORCE_PLUGIN_UPDATES = "cpu";

     public static final String FORCE_PLUGIN_UPDATES2 = "up";

     public static final String SUPPRESS_PLUGIN_UPDATES = "npu";

     public static final String SUPPRESS_PLUGIN_REGISTRY = "npr";

     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 FAIL_FAST = "ff";

     public static final String FAIL_AT_END = "fae";

     public static final String FAIL_NEVER = "fn";

     public CLIManager()

     {

         options = new Options();

         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( "help" )

                                         .withDescription( "Display help information" )

                                         .create( HELP ) );

         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( "reactor" )

                                         .withDescription( "Dynamically build reactor from subdirectories" )

                                         .create( REACTOR ) );

         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( "check-plugin-updates" )

                                         .withDescription( "Force upToDate check for any relevant registered plugins" )

                                         .create( FORCE_PLUGIN_UPDATES ) );

         options.addOption( OptionBuilder.withLongOpt( "update-plugins" )

                                         .withDescription( "Synonym for " + FORCE_PLUGIN_UPDATES )

                                         .create( FORCE_PLUGIN_UPDATES2 ) );

         options.addOption( OptionBuilder.withLongOpt( "no-plugin-updates" )

                                         .withDescription( "Suppress upToDate check for any relevant registered plugins" )

                                         .create( SUPPRESS_PLUGIN_UPDATES ) );

         options.addOption( OptionBuilder.withLongOpt( "no-plugin-registry" )

                                         .withDescription( "Don't use ~/.m2/plugin-registry.xml for plugin versions" )

                                         .create( SUPPRESS_PLUGIN_REGISTRY ) );

         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( "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( "show-version" )

                                         .withDescription( "Display version information WITHOUT stopping build" )

                                         .create( SHOW_VERSION ) );

     }

     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 cleaned = new ArrayList();

         StringBuffer currentArg = null;

         for ( int i = 0; i < args.length; i++ )

         {

             String arg = args[i];

 //            System.out.println( "Processing raw arg: " + arg );

             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 )

                 {

 //                    System.out.println( "Flushing last arg buffer: \'" + currentArg + "\' to cleaned list." );

                     cleaned.add( currentArg.toString() );

                 }

                 // start building an argument here.

                 currentArg = new StringBuffer( 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 )

                     {

 //                        System.out.println( "Adjusting argument already appended to the arg buffer." );

                         currentArg.setLength( currentArg.length() - 1 );

                     }

                     // otherwise, we trim the trailing " and append to the buffer.

                     else

                     {

 //                        System.out.println( "Appending arg part: \'" + cleanArgPart + "\' with preceding space to arg buffer." );

                         // TODO: introducing a space here...not sure what else to do but collapse whitespace

                         currentArg.append( ' ' ).append( cleanArgPart );

                     }

 //                    System.out.println( "Flushing completed arg buffer: \'" + currentArg + "\' to cleaned list." );

                     // we're done with this argument, so add it.

                     cleaned.add( currentArg.toString() );

                 }

                 else

                 {

 //                    System.out.println( "appending cleaned arg: \'" + cleanArgPart + "\' directly to cleaned list." );

                     // this is a simple argument...just add it.

                     cleaned.add( cleanArgPart );

                 }

 //                System.out.println( "Clearing arg buffer." );

                 // the currentArg MUST be finished when this completes.

                 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 )

             {

                 // append to the argument we're building, collapsing whitespace to a single space.

                 if ( currentArg != null )

                 {

 //                    System.out.println( "Append unquoted arg part: \'" + arg + "\' to arg buffer." );

                     currentArg.append( ' ' ).append( arg );

                 }

                 // this is a loner, just add it directly.

                 else

                 {

 //                    System.out.println( "Append unquoted arg part: \'" + arg + "\' directly to cleaned list." );

                     cleaned.add( arg );

                 }

             }

         }

         // clean up.

         if ( currentArg != null )

         {

 //            System.out.println( "Adding unterminated arg buffer: \'" + currentArg + "\' to cleaned list." );

             cleaned.add( currentArg.toString() );

         }

         int cleanedSz = cleaned.size();

         String[] cleanArgs = null;

         if ( cleanedSz == 0 )

         {

             // if we didn't have any arguments to clean, simply pass the original array through

             cleanArgs = args;

         }

         else

         {

 //            System.out.println( "Cleaned argument list:\n" + cleaned );

             cleanArgs = (String[]) cleaned.toArray( new String[cleanedSz] );

         }

         return cleanArgs;

     }

     public void displayHelp()

     {

         System.out.println();

         HelpFormatter formatter = new HelpFormatter();

         formatter.printHelp( "mvn [options] [<goal(s)>] [<phase(s)>]", "\nOptions:", options, "\n" );

     }

 }