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    1   /*
    2    $Id: FileSystemCompiler.java,v 1.9 2006/02/07 20:00:41 dierk Exp $
    3
    4    Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
    5
    6    Redistribution and use of this software and associated documentation
    7    ("Software"), with or without modification, are permitted provided
    8    that the following conditions are met:
    9
    10   1. Redistributions of source code must retain copyright
    11      statements and notices.  Redistributions must also contain a
    12      copy of this document.
    13
    14   2. Redistributions in binary form must reproduce the
    15      above copyright notice, this list of conditions and the
    16      following disclaimer in the documentation and/or other
    17      materials provided with the distribution.
    18
    19   3. The name "groovy" must not be used to endorse or promote
    20      products derived from this Software without prior written
    21      permission of The Codehaus.  For written permission,
    22      please contact info@codehaus.org.
    23
    24   4. Products derived from this Software may not be called "groovy"
    25      nor may "groovy" appear in their names without prior written
    26      permission of The Codehaus. "groovy" is a registered
    27      trademark of The Codehaus.
    28
    29   5. Due credit should be given to The Codehaus -
    30      http://groovy.codehaus.org/
    31
    32   THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
    33   ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
    34   NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
    35   FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
    36   THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
    37   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    38   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    39   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    40   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    41   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    42   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
    43   OF THE POSSIBILITY OF SUCH DAMAGE.
    44
    45   */
    46  package org.codehaus.groovy.tools;
    47
    48  import java.io.File;
    49
    50  import org.apache.commons.cli.CommandLine;
    51  import org.apache.commons.cli.OptionBuilder;
    52  import org.apache.commons.cli.Options;
    53  import org.apache.commons.cli.PosixParser;
    54  import org.codehaus.groovy.control.CompilationUnit;
    55  import org.codehaus.groovy.control.CompilerConfiguration;
    56  import org.codehaus.groovy.control.ConfigurationException;
    57
    58  public class FileSystemCompiler
    59  {
    60      private CompilationUnit unit;
    61
    62
    63      public FileSystemCompiler( CompilerConfiguration configuration ) throws ConfigurationException
    64      {
    65          this.unit = new CompilationUnit( configuration );
    66      }
    67
    68
    69      public void compile( String[] paths ) throws Exception
    70      {
    71          unit.addSources( paths );
    72          unit.compile( );
    73      }
    74
    75
    76      public void compile( File[] files ) throws Exception
    77      {
    78          unit.addSources( files );
    79          unit.compile( );
    80      }
    81
    82
    83      public static void displayHelp() // todo: use HelpFormatter to avoid duplication between help and OptionBuilder
    84      {
    85          System.err.println("Usage: groovyc <options> <source files>");
    86          System.err.println("where possible options include: ");
    87          System.err.println("  --classpath <path>        Specify where to find user class files");
    88          System.err.println("  -d <directory>            Specify where to place generated class files");
    89          System.err.println("  --encoding <encoding>     Specify the encoding of the user class files");
    90  //        System.err.println("  --strict                  Turn on strict type safety");
    91          System.err.println("  --version                 Print the verion");
    92          System.err.println("  --help                    Print a synopsis of standard options");
    93          System.err.println("  --exception               Print stack trace on error");
    94          System.err.println("");
    95      }
    96
    97      public static void displayVersion()
    98      {
    99          System.err.println("groovy compiler version 1.0-rc1");
    100         System.err.println("Copyright 2003-2004 The Codehaus. http://groovy.codehaus.org/");
    101         System.err.println("");
    102     }
    103
    104     public static int checkFiles( String[] filenames )
    105     {
    106         int errors = 0;
    107
    108         for(int i = 0; i < filenames.length; ++i )
    109         {
    110             File file = new File( filenames[i] );
    111
    112             if( !file.exists() )
    113             {
    114                 System.err.println( "error: file not found: " + file );
    115                 ++errors;
    116             }
    117             else if( !file.canRead() )
    118             {
    119                 System.err.println( "error: file not readable: " + file );
    120                 ++errors;
    121             } else {
    122                 String name = file.getName();
    123                 int p = name.lastIndexOf(".");
    124                 if ( p++ >= 0) {
    125                     if (name.substring(p).equals("java")) {
    126                         System.err.println( "error: cannot compile file with .java extension: " + file );
    127                         ++errors;
    128                     }
    129                 }
    130             }
    131         }
    132
    133         return errors;
    134     }
    135
    136
    137
    138    /***
    139     *  Primary entry point for compiling from the command line
    140     *  (using the groovyc script).
    141     */
    142
    143     public static void main( String[] args )
    144     {
    145         boolean displayStackTraceOnError = false;
    146
    147         try
    148         {
    149             //
    150             // Parse the command line
    151
    152             Options options = new Options();
    153
    154             options.addOption(OptionBuilder.withLongOpt("classpath").hasArg().withArgName("classpath").create());
    155             options.addOption(OptionBuilder.withLongOpt("sourcepath").hasArg().withArgName("sourcepath").create());
    156             options.addOption(OptionBuilder.withLongOpt("encoding").hasArg().withArgName("encoding").create());
    157             options.addOption(OptionBuilder.hasArg().create('d'));
    158 //            options.addOption(OptionBuilder.withLongOpt("strict").create('s'));
    159             options.addOption(OptionBuilder.withLongOpt("help").create('h'));
    160             options.addOption(OptionBuilder.withLongOpt("version").create('v'));
    161             options.addOption(OptionBuilder.withLongOpt("exception").create('e'));
    162
    163             PosixParser cliParser = new PosixParser();
    164
    165             CommandLine cli = cliParser.parse(options, args);
    166
    167             if( cli.hasOption('h') )
    168             {
    169                 displayHelp();
    170                 return;
    171             }
    172
    173             if( cli.hasOption('v') )
    174             {
    175                 displayVersion();
    176             }
    177
    178
    179             //
    180             // Setup the configuration data
    181
    182             CompilerConfiguration configuration = new CompilerConfiguration();
    183
    184             if( cli.hasOption("classpath") )
    185             {
    186                 configuration.setClasspath( cli.getOptionValue("classpath") );
    187             }
    188
    189             if( cli.hasOption('d') )
    190             {
    191                 configuration.setTargetDirectory( cli.getOptionValue('d') );
    192             }
    193
    194             if (cli.hasOption("encoding")) {
    195                 configuration.setSourceEncoding(cli.getOptionValue("encoding"));
    196             }
    197
    198             displayStackTraceOnError = cli.hasOption('e');
    199
    200
    201             //
    202             // Load the file name list
    203
    204             String[] filenames = cli.getArgs();
    205             if( filenames.length == 0 )
    206             {
    207                 displayHelp();
    208                 return;
    209             }
    210
    211             int errors = checkFiles( filenames );
    212
    213
    214             //
    215             // Create and start the compiler
    216
    217             if( errors == 0 )
    218             {
    219                 FileSystemCompiler compiler = new FileSystemCompiler( configuration );
    220                 compiler.compile( filenames );
    221             }
    222         }
    223         catch( Throwable e )
    224         {
    225             new ErrorReporter( e, displayStackTraceOnError ).write( System.err );
    226         }
    227     }
    228
    229 }